Letteratura scientifica selezionata sul tema "Fusarium oxysporum Control"
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Articoli di riviste sul tema "Fusarium oxysporum Control"
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Silva, Juliano C. da, e Wagner Bettiol. "Potential of non-pathogenic Fusarium oxysporum isolates for control of Fusarium wilt of tomato". Fitopatologia Brasileira 30, n. 4 (agosto 2005): 409–12. http://dx.doi.org/10.1590/s0100-41582005000400012.
Testo completoAbstract (sommario):
This study was done to evaluate the efficiency of non-pathogenic Fusarium oxysporum isolates (141/3, 233, 233/1, 245, 245/1, 251, 251/2, 251/5, and 257) in controlling vascular wilt caused by F. oxysporum f. sp. lycopersici, race 2 (isolates C-21A, TO11, and TO245) in tomato (Lycopersicon esculentum) cv. Viradoro seedlings. In order to determine the effect of non-pathogenic F. oxysporum isolates in tomato plants, the root system of 30-day-old seedlings was immersed in conidial suspensions (10(6) ml-1) of each isolate and the seedlings were transplanted to a cultivation substrate. Thirty-five days after transplanting it was observed that the non-pathogenic F. oxysporum isolates were not pathogenic to the cv. Viradoro nor did they affect seedling development. The efficiency of the non-pathogenic F. oxysporum isolates in controlling Fusarium wilt was determined by immersing the tomato seedling roots in the conidial suspension (10(6) ml-1) of each isolate and then transplanting them into substrates previously infested with isolates of F. oxysporum f.sp. lycopersici, race 2 (10(5) conidia ml-1 of substrate). Evaluations were performed 35 days after transplanting, for severity in scale with 1=healthy plant to 6=dead plant or plant showing vessel browning and wilted leaves up to the leader shoot and seedling height. The non-pathogenic F. oxysporum isolates were efficient in reducing the severity of the disease and maintaining normal plant development. These results provide evidence of the antagonistic activity of non-pathogenic F. oxysporum isolates in controlling vascular wilt caused by F. oxysporum f. sp. lycopersici race 2 in tomato.
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Belgrove, A., C. Steinberg e A. Viljoen. "Evaluation of Nonpathogenic Fusarium oxysporum and Pseudomonas fluorescens for Panama Disease Control". Plant Disease 95, n. 8 (agosto 2011): 951–59. http://dx.doi.org/10.1094/pdis-06-10-0409.
Testo completoAbstract (sommario):
Nonpathogenic Fusarium oxysporum endophytes from healthy banana roots were evaluated for their ability to reduce Fusarium wilt of banana (Panama disease). Isolates were identified morphologically and by using species-specific primers. Pathogenicity was confirmed by inoculating banana plantlets in the greenhouse. Nonpathogenic F. oxysporum isolates were grouped into 14 haplotype groups by polymerase chain reaction restriction fragment length polymorphism analysis of the intergenic spacer region, and representative isolates evaluated for biocontrol of F. oxysporum f. sp. cubense. In the greenhouse, 10 nonpathogenic F. oxysporum isolates were able to significantly reduce Fusarium wilt of banana. The isolate that protected banana plantlets best in the greenhouse, a nonpathogenic F. oxysporum from the root rhizosphere, and Pseudomonas fluorescens WCS 417 were then field tested. When the putative biological control organisms were tested in the field, neither the nonpathogenic F. oxysporum, P. fluorescens, nor combinations thereof reduced Fusarium wilt development significantly. A number of factors could contribute to the lack of field protection, including soil microbial and chemical composition and reduced survival of biocontrol organisms in banana roots. A lack of knowledge regarding the etiology of Fusarium wilt of ‘Cavendish’ banana in the subtropics and the effect of F. oxysporum f. sp. cubense race and banana cultivar in protection of banana by biocontrol organisms should be further investigated.
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Abdillah, A., R. Rachmawaty e A. Mu'nisa. "Pengaruh Ekstrak Kulit Buah Kakao (Theobroma cacao) Dalam Menghambat Penyakit Layu Fusarium Terhadap Pertumbuhan Tanaman Tomat". Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam 8, n. 1 (31 marzo 2019): 86. http://dx.doi.org/10.35580/sainsmat81127642019.
Testo completoAbstract (sommario):
Tanaman budidaya tidak dapat dipisahkan dari penyakit, penyakit ini disebabkan oleh patogen yang dapat merusak proses fisiologi tanaman. patogen ini dapat berupa bakteri atau jamur. Layu fusarium disebabkan oleh fusarium oxysporum, pada tomat penyakit ini disebabkan oleh fusarium oxysporum f. sp lycopersici. Penyakit ini bisa menyebabkan kerugian besar bagi petani. Penggunaan fungisida sintetik telah banyak digunakan untuk mengendalikan penyakit yang disebabkan oleh fusarium oxysporum tetapi memiliki efek buruk yang besar terhadap lingkungan, oleh karena itu diperlukan fungisida biologis yang ramah lingkungan dalam mengendalikan penyakit. Penelitian ini bertujuan untuk menguji efektivitas fungisida alami yang diperoleh dari buah kakao. Dalam penelitian ini 6 perlakuan digunakan, P0 (kontrol tanaman sehat tanpa pengobatan), P1 (kontrol tanaman sakit diobati F. oxysporum), P2 (pengobatan ekstrak kakao 2% + perlakuan F. oxysporum) P3 (pengobatan ekstrak buah kakao ekstrak 5% + perlakuan F. oxysporum), P4 (perlakuan ekstrak buah kakao 8% + perlakuan F. oxysporum) P5 (perlakuan benomyl + perlakuan F. oxysporum) Hasil penelitian menunjukkan bahwa fungisida nabati dari ekstrak biji kakao mampu menghambat layu fusarium. Setiap perlakuan memiliki efek yang sama pada tinggi maksimum tanaman tomat, jumlah buah dan berat buah. Tinggi tanaman tertinggi, jumlah daun dan berat buah tertinggi pada perlakuan ekstrak 8% dan terendah adalah 2% perlakuan ekstrak. Kata Kunci : Layu Fusarium, Fusarium Oxysporum, Fungisida Alami Cultivation plants are inseparable from disease, this disease is caused by pathogens that can damage plant physiology processes. these pathogens can be either bacteria or fungi. Fusarium wilt is caused by fusarium oxysporum, in tomatoes this disease is caused by fusarium oxysporum f. sp lycopersici. This disease can cause huge losses to farmers. The use of synthetic fungicides has been widely used to control diseases caused by fusarium oxysporum but has a major adverse effect on the environment, therefore it is necessary to have an environmentally friendly biological fungicide in controlling the disease. This study aims to examine the effectiveness of natural fungicides obtained from cocoa pods. In this study 6 treatments were used, P0 (control of healthy plants without treatment), P1 (control of sick plants treated F. oxysporum), P2 (treatment of 2% cocoa pods extract + treatment of F. oxysporum ) P3 (treatment of cocoa pods extract 5 % + treatment of F. oxysporum ), P4 (treatment of 8% cocoa pods extract + treatment of F. oxysporum) P5 (treatment of benomyl + treatment F. oxysporum ) The results showed that vegetable fungicides from cocoa pods extract were able to inhibit fusarium wilt. Each treatment has the same effect on the maximum height of tomato plants, number of fruits and weight of fruit. The highest plant height, number of leaves and highest fruit weight was at 8% extract treatment and the lowest was 2% extract treatmen. Keywords: fusarium wilt. Fusarium oxysporum, natural fungicide
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Patiño, Belén, Martha Lucía Posada, Covadonga Vázquez, María Teresa González-Jaén e Álvaro Martínez del Pozo. "Control of polygalacturonase synthesis inFusarium oxyspotumf.sp.radicis lycopersici". Canadian Journal of Microbiology 43, n. 11 (1 novembre 1997): 1084–90. http://dx.doi.org/10.1139/m97-155.
Testo completoAbstract (sommario):
Genetic control of polygalacturonase (PG) activity from Fusarium oxysporum f.sp. radicis lycopersici was analyzed on pectin and glucose cultures. One exopolygalacturonase from F. oxysporum f.sp. radicis lycopersici was strongly induced, in stationary culture, when the fungus was grown on apple pectin, while on glucose no extracellular PG activity could be detected. Although SDS–PAGE detected the presence of a putative PG band (66 kDa) in both conditions, specific antibodies obtained against the purified PG only detected it in PG-inducing conditions, that is to say, when apple pectin was used as the carbon source. Northern blot analysis of RNA of two isolates of F. oxysporum f.sp. radicis lycopersici (r6and r2) confirmed that this regulation of PG synthesis was exerted at the transcriptional level. Only one single mRNA species of around 1400 nucleotides was detected on the cultures containing pectin and was absent in glucose-grown cultures. Southern blot analysis of genomic DNA indicated that pg gene seems to be present in a single copy in the genomes of F. oxysporum f.sp. radicis lycopersici r6and r2and Fusarium oxysporum f.sp. lycopersici, showing similar hybridization patterns in all species. The partial sequence of this pg gene from F. oxysporum f.sp. radicis lycopersici r6, which is also reported, showed high similarity to diverse PGs already reported. Exopolygalacturonase of F. oxysporum f.sp. radicis lycopersici r6is heavily glycosylated; its deglycosylated form had a molecular mass of 50 kDa.Key words: polygalacturonase, Fusarium oxysporum f.sp. radicis lycopersici, regulation.
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Hang, Y. D., e E. E. Woodams. "Control of Fusarium oxysporum by baking soda". LWT - Food Science and Technology 36, n. 8 (dicembre 2003): 803–5. http://dx.doi.org/10.1016/s0023-6438(03)00095-1.
Testo completo
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Reid, T. C., M. K. Hausbeck e K. Kizilkaya. "Use of Fungicides and Biological Controls in the Suppression of Fusarium Crown and Root Rot of Asparagus Under Greenhouse and Growth Chamber Conditions". Plant Disease 86, n. 5 (maggio 2002): 493–98. http://dx.doi.org/10.1094/pdis.2002.86.5.493.
Testo completoAbstract (sommario):
Growth chamber, greenhouse, and field experiments were conducted with fungicides and biological control agents, including nonpathogenic isolates of Fusarium oxysporum, to test their ability to control disease caused by F. oxysporum f. sp. asparagi and F. proliferatum. In greenhouse studies with asparagus seedlings in soil, Trichoderma harzianum strain T-22, benomyl, and fludioxonil treatments increased root weight and decreased root disease compared with the infested control when a low level of F. oxysporum f. sp. asparagi and F. proliferatum was used. The fungicide fludioxonil limited plant death caused by Fusarium spp. at high inoculum levels, whereas T. harzianum strain T-22 was not effective. Nonpathogenic isolates of F. oxysporum were effective in limiting Fusarium disease on asparagus seedlings in culture tubes, although isolates differed in their ability to control disease caused by F. oxysporum f. sp. asparagi and F. proliferatum. In greenhouse studies, no significant differences in plant death were found between asparagus plants growing in media infested with F. oxysporum f. sp. asparagi and F. proliferatum and left untreated, and those treated with nonpathogenic F. oxysporum. The efficacy of fungicides and biological control products to control Fusarium crown and root rot under commercial field conditions could not be evaluated due to low disease pressure.
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ALTINOK, Hacer Handan, e Oktay ERDOGAN. "Determination of the In vitro Effect of Trichoderma harzianum on Phytopathogenic Strains of Fusarium oxysporum". Notulae Botanicae Horti Agrobotanici Cluj-Napoca 43, n. 2 (10 dicembre 2015): 494–500. http://dx.doi.org/10.15835/nbha4329788.
Testo completoAbstract (sommario):
Fusarium oxysporum is a well-known soil-borne fungi and it is difficult to control their pathogenic strains by conventional strategies. The cultures of two strains of Trichoderma harzianum (T16 and T23) were examined in laboratory conditions and with pot experiments for the control of pathogenic strains of Fusarium oxysporum f. sp. melongenae (Fomg), Fusarium oxysporum f. sp. lycopersici (Fol), Fusarium oxysporum f. sp. niveum (Fon) and F. oxysporum f. sp. melonis (Fom). The T16 and T23 strains showed significant inhibition of mycelial growth in the pathogenic strains of F. oxysporum and the maximum inhibition were recorded when the T. harzianum strain T16 was used (72.69%). Both T. harzianum strains produced volatile and non-volatile metabolites that inhibited growth of F. oxysporum strains on PDA medium. In vitro colonization study demonstrated the root-colonizing ability of these antagonists. The interaction between T. harzianum isolates (T16 and T23) and pathogenic F. oxysporum hyphae showed no overgrowth, hyphal coiling, cell wall degradation or any hyphal penetration around any of the tested F. oxysporum hyphae. Pre-treatment of soil with T16 significantly reduced the severity of Fusarium wilt disease. The disease severity in control plants reached to 90-95% whereas those of the T16-Fomg and T16-Fol treated seedlings of eggplants were 37.74% and 47.12%, respectively, on the 21st day. In this study, while both T. harzianum isolates had a considerable antagonistic effect on the tested pathogens, T16 was found to be more successful than T23. The strong repressive effect of T. harzianum (T16) towards pathogenic Fusarium oxsporum can be applied in biological control of these pathogens.
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Chekalov, V. A., e N. E. Volkova. "Chickpea genotypes characteristics on resistance to fusarium Fusarium oxysporum f. sp. ciceris". Faktori eksperimental'noi evolucii organizmiv 23 (9 settembre 2018): 166–69. http://dx.doi.org/10.7124/feeo.v23.1008.
Testo completoAbstract (sommario):
Aim. Molecular-genetic analysis of the chickpea genotypes for foc0, foc3, foc4 resistance genes to Fusarium oxysporum f. sp ciceris. Methods. Extraction and purification of DNA, spectrophotometry, polymerase chain reaction, electrophoresis in polyacrylamide gels. Results. 35 chickpea lines and varieties of Ukrainian and foreign breeding characterized according to genotyping on foc0, foc3, foc4 genes of resistance to Fusarium oxysporum f. sp ciceris by the microsatellite markers TA59, TR19 and TR59. Fragments of the expected size for all markers were obtained for samples, for which the resistance level was fixed to certain races. Match between data on the presence of a amplification fragment of a certain size and resistance level among other samples is not found. Conclusions. For 35 chickpea varieties and lines the allele state of foc0, foc3, foc4 genes of resistance to the F. oxysporum f. sp ciceris races 0, 3, 4 is established. The variety ‘Pam’yat’ is recommended as a control of resistance to F. oxysporum f. sp ciceris races 0, 3, 4 in the southern Ukraine conditions.
Keywords: chickpea, genes, molecular markers, fusarios, resistance.
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Pedai, Theodorsius, Bambang Hadisutrisno e Achmadi Priyatmojo. "UTILIZATION OF ARBUSCULAR MICORRHIZAL FUNGI TO CONTROL FUSARIUM WILT OF TOMATOES (PEMANFAATAN JAMUR MIKORIZA ARBUSKULAR UNTUK MENGENDALIKAN LAYU FUSARIUM PADA TOMAT)". Jurnal Perlindungan Tanaman Indonesia 19, n. 2 (4 gennaio 2017): 89. http://dx.doi.org/10.22146/jpti.17255.
Testo completoAbstract (sommario):
ABSTRACTTomato is a vegetable crop which is preferred by the Indonesian people. The problem encountered in tomato production is Fusarium wilt which is known as devastating disease. Studies have been done to solve the problem but effective and inexpensive control technique is still questioned. This study aimed to ascertain the ability of Arbuscular Mycorrhizal (AM) fungi as biological control agent in reducing tomato Fusarium wilt. Research was arranged in a completely randomized design (CRD) consisting of 5 treatments and 10 replications. The treatments were untreated plants, Fusarium oxysporum f.sp. lycopersici inoculated plants, AM fungi inoculated plants, AM fungi + F. oxysporum f.sp. lycopersici inoculated plants, F. oxysporum f.sp. lycopersici + benomyl inoculated plants. The results showed that plants which were inoculated with AM fungi had better growth compared to those which were not inoculated with AM fungi. Moreover, plants which were inoculated with AM fungi showed lower disease intensity compared to untreated plant and inoculated plant with F. oxysporum f.sp. lycopersici + benomyl application. Orthogonal contrast analysis showed plants treated with AM fungi significantly perform better growth and resistance towards infection compared with other treatments. Thus, it concluded that AM fungi had the potency as biological control agent.Keywords: AM fungi, disease intensity, Fusarium wilt, tomato INTISARITomat merupakan tanaman sayuran yang banyak digemari masyarakat Indonesia. Salah satu pengganggu utama pada tomat adalah penyakit layu Fusarium yang disebabkan oleh Fusarium oxysporum f.sp. lycopersici dan menimbulkan masalah yang serius. Kerugian yang ditimbulkan oleh penyakit tersebut sangat besar sehingga perlu dicari cara pengendalian yang murah, efektif, dan aman. Penelitian yang bertujuan untuk mengetahui kemampuan jamur mikoriza arbuskular (JMA) sebagai agens pengendali hayati dalam menekan penyakit layu Fusarium pada tomat ini dilakukan dengan Rancangan Acak Lengkap (RAL) yang terdiri atas 5 perlakuan dan 10 ulangan. Perlakuan meliputi kontrol, inokulasi F. oxysporum f.sp. lycopersici, inokulasi JMA, inokulasi JMA dan F. oxysporum f.sp. lycopersici, inokulasi F. oxysporum f.sp. lycopersici dan aplikasi fungisida benomil. Hasil penelitian menunjukkan bahwa tomat yang diinokulasi JMA memiliki pertumbuhan yang lebih baik dibandingkan yang tidak diinokulasi JMA. Intensitas penyakit pada tomat yang diinokulasi JMA lebih rendah, baik dibandingkan dengan kontrol maupun dengan perlakuan F. oxysporum f.sp. lycopersici dan aplikasi fungisida. Hasil analisis kontras orthogonal menunjukkan bahwa tomat bermikoriza berbeda nyata bila dibandingkan dengan yang tidak diinokulasi JMA maupun yang diaplikasi benomil. Terjadi peningkatan pertumbuhan tomat dan penekanan intensitas penyakit layu Fusarium, sehingga JMA berpotensi sebagai agens pengendali hayati (APH).Kata kunci: intensitas penyakit, JMA, layu Fusarium, tomat
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Bao, Jian R., e George Lazarovits. "Differential Colonization of Tomato Roots by Nonpathogenic and Pathogenic Fusarium oxysporum Strains May Influence Fusarium Wilt Control". Phytopathology® 91, n. 5 (maggio 2001): 449–56. http://dx.doi.org/10.1094/phyto.2001.91.5.449.
Testo completoAbstract (sommario):
Histochemical staining, β-glucuronidase (GUS) activity, or placing roots on agar were methods used to characterize interactions between the pathogenic fungus, Fusarium oxysporum f. sp. lycopersici, and the nonpathogenic biocontrol F. oxysporum strain 70T01 with respect to colonization behaviors, interaction sites, and population densities on tomato roots. Mycelia of strain 70T01, a genetic transformant expressing stable GUS activity, hygromycin B resistance, and effective disease control, were localized in epidermal and cortex cell layers of tomato roots in a discontinuous and uneven pattern. In contrast, mycelia of F. oxysporum f. sp. lycopersici were found in the vascular bundles. Thus, direct interactions between the two fungi likely happen in the root surface cell layers. Colonization density of strain 70T01 was related to the inoculation density but decreased with distance from the inoculation site. Host defense reactions, including increased cell wall thickness or papilla deposits, were adjacent to 70T01 hyphae. Experiments done in soil showed that strain 70T01 densities in roots were highest at inoculation zones and barely detectable for root segments more than 2 cm away from the inoculation sites. F. oxysporum f. sp. lycopersici densities were lowest at 70T01 inoculation zones and highest (>10 times) where strain 70T01 was not directly applied. Newly elongating roots where strain 70T01 did not reach were available for infection by the pathogen. The higher strain 70T01 density was always found when the plants were simultaneously infected by F. oxysporum f. sp. lycopersici, suggesting that F. oxysporum f. sp. lycopersici has as much influence in predisposing the plant to colonization by strain 70T01 as strain 70T01 has on providing disease protection against the pathogen.
Tesi sul tema "Fusarium oxysporum Control"
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Domingues, Fernanda. "Controle físico e biológico de Fusarium oxysporum f. sp. zingiberi em gengibre". Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/11/11135/tde-23012007-155914/.
Testo completoAbstract (sommario):
O Amarelo ou Murcha de Fusarium, causado por Fusarium oxysporum f. sp. zingiberi vem assumindo grande importância na cultura do gengibre devido à ausência de métodos eficientes de controle. Com os objetivos de testar a termoterapia associada ao tratamento químico e biológico para a obtenção de rizomas-semente sadios e avaliar a indução de supressividade do solo a Fusarium oxysporum f. sp. zingiberi com a incorporação de casca de camarão, seis ensaios foram conduzidos. Para o tratamento térmico, foram utilizados rizomas infectados, com aproximadamente 5cm de comprimento. As relações tempo-temperatura utilizadas foram: 45°C por zero, 60, 120 e 180 minutos e 50°C por zero, dez e 20 minutos (ensaio 1 e campo); 50°C por zero, 30 e 60 minutos e 55°C por zero, 10 e 20 minutos (ensaio 2); 50, 55 e 60ºC por zero, 10 e 20 min (ensaio 3). As caldas para tratamento térmico foram constituídas por água, solução de tiofanato metílico e caldo fermentado por Bacillus subtilis. No experimento em laboratório, os rizomas foram inoculados artificialmente. Após uma semana, receberam o tratamento térmico a 45º C por 60, 120 e 180 minutos e a 50ºC e 55ºC por 10e 20 minutos. Após a termoterapia, segmentos de rizoma foram plaqueados, sendo avaliados pela contagem dos segmentos que apresentavam o crescimento do patógeno. Na coleta, foram avaliadas altura, peso da matéria fresca da parte aérea e produção, e realizado o plaqueamento da parte aérea, raiz e rizoma. Para verificar a possibilidade do uso de casca de camarão, o solo foi infestado com o isolado patogênico. Após uma semana, houve a incorporação da casca de camarão ao solo nas concentrações de 0; 2,5; 5; 7,5; 10; 15 e 20% (v/v). A população de Fusarium do solo e a comunidade de actinomicetos foram avaliadas semanalmente por diluição em série e plaqueamento. Após oito semanas da incorporação, foi realizado o plantio de um rizoma-semente de gengibre por vaso. Na coleta, a avaliação foi realizada da mesma maneira que para termoterapia. Através de todos os resultados obtidos nos cinco ensaios de termoterapia, verificouse a possibilidade de utilização da técnica com sucesso no auxílio ao controle da doença. As melhores combinações tempo/temperatura foram a 45ºC pelo tempo de 120 minutos ou a 55ºC por 20 minutos em todas as caldas. No teste com o uso da casca de camarão, houve uma diminuição da população de Fusarium e aumento da comunidade de actinomicetos nos solos que receberam a incorporação de casca. A adição de casca de camarão ao solo permite o plantio do gengibre em locais onde o patógeno esteja presente.Yellow or Fusarium Wilt, caused for Fusarium oxysporum f. sp. zingiberi comes assuming great importance in the culture of the ginger due to absence of efficient methods of control. With the objectives to test the thermotherapy associated with the chemical and biological treatment for the healthy attainment of ginger-seed and to evaluate the induction of soil suppressiveness to Fusarium oxysporum f. sp. zingiberi with the incorporation of shrimp peel, six experiments had been lead. For the thermal treatment, infested rhizome had been used, with approximately 5cm of length. The used relations time-temperature had been: 45°C for zero, 60, 120 and 180 minutes and 50°C for zero, ten and 20 minutes (experiment 1 and field); 50°C for zero, 30 and 60 minutes and 55°C for zero, 10 and 20 minutes (experiment 2); 50, 55 and 60ºC for zero, 10 and 20 min (experiment 3). Solutions for thermal treatment had been constituted by water, solution of thiophanate methylic and broth leavend for Bacillus subtilis. In the experiment in laboratory, rhizomes had been inoculated artificially. After one week, they had received the thermal treatment 45º C for 60, 120 and 180 minutes and 50ºC and 55ºC for 10 and 20 minutes. After the thermal treatment, segments of rhizomes had been placed in plates, being evaluated for the counting of the segments that presented the growth of the pathogen. In the collection, height, weight of the aerial part and production had been evaluated, and carried through plating of the aerial part, root and rhizome. To verify the possibility of the use of shrimp peel, the soil was infested with isolated the pathogenic one. After one week, had the incorporation of the peel of shrimp to the soil in the concentrations of 0; 2,5; 5; 7,5; 10; 15 and 20% (v/v). The population of Fusarium of the soil and the community of actinomycetes had been evaluated weekly by dilution in series and placed in plates. After eight weeks of the incorporation, the plantation of one rizome-seed of ginger for vase was carried through. In the collection, the evaluation was carried through in the same way that for thermotherapy. Through all the results gotten in the five experiments of thermotherapy, it was verified successfully possibility of use of the technique in the aid to the control of the illness. The best combinations time/temperature had been 45ºC for the time of 120 minutes or 55ºC per 20 minutes in all solutions. In the test with the use of the shrimp peel, it had a reduction of the population of Fusarium and increase of the community of actinomycetes in the soil that had received the incorporation from peel. The addition of peel of shrimp to the soil allows the plantation of the ginger in places where the pathogen is present.
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Adusei-Fosu, Kwasi. "Improving the detection and control of Fusarium oxysporum f. sp. elaeidis". Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/47391/.
Testo completoAbstract (sommario):
Fusarium wilt of oil palm, caused by a soil-borne fungal pathogen Fusarium oxysporum f. sp. elaeidis (Foe), is a major problem to oil palm cultivation and palm oil yield in Africa, Asia, and parts of North America. There is currently a shortfall in palm oil to meet local and international demands. Thus, factors constraining maximum yield are critical to address. This research was done to find potential methods of controlling Foe in Ghana and if possible extended to other countries experiencing similar problems. Effective disease control will come from understanding the genetic variability of Foe, a combination of selection and release of resistant germplasm, and rapid detection of Foe. In-depth molecular fingerprinting via AFLP, SSR, ISSR as well as using the “housekeeping” genes (TEF and ITS) and effector proteins specifically SIX genes as molecular markers revealed genetic variations among different isolates of Foe from Africa (Ghana, Ivory Coast, DR Congo) and South America (Suriname) as shown in the various constructed phylogenetic trees in the study. This research has introduced improved measures to obtain resistant oil palm germplasm from the high local genetic diversity via pathogenicity studies. Pathogenicity assessment under green-house conditions through different inoculation techniques revealed four Foe isolates could cause infection in oil palm genotypes from Ghana and Malaysia. Effectors based on fourteen SIX genes were studied and primers with higher specificity designed for the LAMP technique for only Foe detection or diagnosis on site developed. Different LAMP primer sets were developed in this study to distinguish or discriminate only Fusarium oxysporum isolates from other pathogens. A P-450 cytochrome gene LAMP primer was also successfully developed in this research. Survey of the disease was conducted in four different oil palm plantation fields in Ghana. Tissue samples were collected from symptomatic oil palm trees neighbouring asymptomatic oil palm trees in fields of Ghana as part of the survey. All tissue samples from both symptomatic and asymptomatic oil palm tested positive for Foe infection via PCR. General observations in the oil palm plantations in Ghana showed that infection of Foe occurred in clusters among oil palm trees. Application of different control mechanisms against Foe with biological agents (Trichoderma sp.), chemical (sodium silicate pentahydrate - Na2O3Si.5H2O) or photochemical (Conventional UV or High Intensity Pulsed Polychromatic source) techniques all proved to be potential methods to suppress or totally inhibit Foe. Among the three Trichoderma sp. used in the study, Trichoderma harzianum (T3) was the most suppressive to the four Foe isolates, though the other two Trichoderma isolates, T. cerinum (T1) and T. atroviride (T2) showed potential as biological control agents (BCAs). The three different concentrations of Na2O3Si.5H2O test yielded varying results as increasing concentrations increased the percentage inhibition in all four Foe isolates used. The lethal dose for Foe spores with either a High Intensity Pulsed Polychromatic or Conventional UV sources was 60 KJ but oil palm pollen exposed to this dose did not germinate. Generally, the higher the dose of UV, the lower the percentage germination of the oil palm pollen in this study.
3
Sampaio, Ana Margarida. "Unravelling the genetic control of Fusarium Oxysporum resistance in Lathyrus sativus". Doctoral thesis, Universidade Nova de Lisboa. Instituto de Tecnologia Química e Biológica António Xavier, 2021. http://hdl.handle.net/10362/113613.
Testo completoAbstract (sommario):
"Grass pea (Lathyrus sativus) is an annual grain legume crop cultivated worldwide. Although considered underused, grass pea is an important source of protein for human and animal consumption in particular marginal areas. Furthermore, it is characterized by a remarkable resistance to abiotic stresses, such as drought, and biotic stress, such as particular pests and diseases. However, yield inconsistency due to sensitivity to specific diseases strongly limits its cultivation. One of these diseases is fusarium wilt, caused by the soil-borne fungi Fusarium oxysporum (Fo).
Fusarium oxysporum promotes a devastating wilt(...)"N/A
4
Lage, Daniel Anacleto da Costa. "Fumigação de solo com óleo essencial de mostarda para o controle da murcha de fusário em tomateiro". Universidade Federal de Viçosa, 2009. http://locus.ufv.br/handle/123456789/4371.
Testo completoAbstract (sommario):
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Previous issue date: 2009-02-12Conselho Nacional de Desenvolvimento Científico e Tecnológico
The fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici (Fol), is one of the major problems in tomato cultivation especially in green house crop. The soil infestation with this pathogen can make the green house cultivation unviable, therefore periodic fumigation is recommended to maintain low inoculum level in soil. This study was done to evaluate the fumigant effect of the mustard essential oil (MEO), containing 90% allyl isothiocyanate, to control Fol. In vitro bioassays were done to determine its effect on mycelial growth, sporulation and germination of conidia and clamydospores, with use of a wild Fol and benomyl resistant mutant (Folm). The fungal cultures in Petri plates were fumigated with different concentration of the MEO for 24 or 48 h, and then incubated in MEO free atmosphere. For all fungal propagules, the estimated DE50 was lowest if the fumigation was done for 48 h. The mycelium and conidia of the Fol were more susceptible to MEO than chlamydospores. The MEO did not affect sporulation. Fumigation with MEO was also evaluated for eradication of the chlamydospores of Folm in soil. Initially, the interaction between dose (0, 50, 100 or 150μL/L) and exposure time was determined (2, 4, 6 or 8 days). The soil infested with 2000 ±200 chlamydospores/g was placed in flasks, and after adding the requited amount of MEO the flasks were hermetically sealed. After each exposure period, the inoculum density of the fungus was determined by plating the soil dilutions on benomyl enriched galactosenitrate agar. The regression equation revealed that at dose of 125μL/L an exposure period of 5.4 days was required to eradicate Folm. To determine the fumigant effect of MEO in the green house, 20L of soil infested with 4000 ±250 chlamydospores/g was placed in the plastic bags of 30L, and treated with 0, 50, 100 or 150μL/L of MEO. The bags were then sealed and stored. After 7-days exposure period, the soil was distributed into 4L-plastic pots, and one 20-day old tomato seedling was transplanted into each pot. At 15-day interval, soil from each pot was sampled at 15-day interval to follow the population dynamic of the fungus. The disease progress was accompanied by leaf chlorophyll analysis leaves, and the final severity was evaluated by use of a numerical at the end of 60 days. It was found that the soil fumigation with 150μL/L of MEO reduced the Folm inoculum density by 95% and the disease severity was less than 15%.
A murcha de fusário, causada por Fusarium oxysporum f. sp. lycopersici (Fol), é um problema comum em campos de produção de tomate, especialmente quando o cultivo é realizado em ambiente protegido. Solos infestados por este patógeno podem inviabilizar a produção em estufas, sendo recomendada a fumigação periódica, visando à manutenção de um baixo nível de inóculo no solo. Este trabalho teve como objetivo avaliar o efeito fumigante do óleo essencial de mostarda, que é composto por 90% de isotiocianato de alila (ITCA), na redução de inóculo e no controle da murcha vascular causada por Fol. Foram realizados bioensaios in vitro de crescimento micelial, formação de conídios e germinação de conídios e de clamidósporos. Para os testes, foram utilizados um isolado selvagem (Fols) e um mutante resistente ao benomil (Folm), os quais foram fumigados com ITCA, em diferentes doses, dentro de recipientes plásticos vedados, por períodos de 24 ou 48 horas. Após a fumigação, as placas contendo as culturas foram incubadas na ausência dos vapores do produto até a avaliação. Os menores valores de DE50 foram estimados para o período de 48 horas de exposição, tanto para o bioensaio de crescimento micelial como para os de germinação de conídios e de clamidósporos. Verificou-se que os conídios foram os propágulos de Fol mais sensíveis ao produto e os clamidósporos os mais resistentes. O ITCA não afetou significativamente a formação de conídios pelos isolados. Avaliou-se também a eficiência do produto na erradicação de clamidósporos de Folm no solo. Inicialmente, foi estudada a interação entre doses (0, 50, 100 e 150μL/L) e tempo de exposição (2, 4, 6 e 8 dias) ao ITCA. Solo infestado com 2000 ±200 clamidósporos/g foi transferido para erlenmeyers, que receberam a dose desejada, sendo, em seguida, hermeticamente vedados. Após exposição, a população do fungo foi determinada por meio de plaqueamento de diluições em série em meio seletivo para F. oxysporum acrescido de benomil. A partir da equação de regressão gerada, pôde-se estimar que seria necessária uma fumigação de solo com 125μL/L por períodos superiores a 5,4 dias para erradicação de Folm no solo. Para determinar o efeito de ITCA em casa de vegetação, 20L de solo infestado com 4000 ±250 clamidósporos/g foram colocados em sacos de polietileno de 30L, os quais receberam as doses de 0, 50, 100 ou 150μL/L sendo, posteriormente, vedados, permitindo a fumigação por 7 dias. Decorrido este período, o solo foi transferido para vasos de 4L, os quais receberam uma muda de tomate com 20 dias de idade. As plantas foram cultivadas por 60 dias, sendo retiradas amostras quinzenais de solo para acompanhamento da dinâmica populacional do fungo no solo. Através de análise do conteúdo de clorofila nas folhas, acompanhou-se o desenvolvimento da doença e a severidade final foi avaliada por meio de escala de notas. Foi verificado que a fumigação com 150μL/L de ITCA reduziu em mais de 95% a população de Folm no solo e que a severidade da doença aos 60 dias foi inferior a 15%.
5
Ethur, Luciana Zago. "Dinâmica populacional e ação de trichoderma no controle de fusariose em mudas de tomateiro e pepineiro". Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/3189.
Testo completoAbstract (sommario):
Trichoderma spp. is at the present time, one of the fungi most studied as biocontrol agent, being antagonistic to several pathogens in different crops, besides promoting vegetable growth. The pathogen Fusarium oxysporum causes the fusarial wilt and is difficult to control
mainly because of its capacity to remain in the soil for long periods, even without the presence of the host. Studies of the population dynamics of Trichoderma spp., Fusarium spp. and native microorganisms are necessary, mainly to observe the impact of the biocontrol agent addition to the soil. Vegetables as cucumber and tomato are commonly cultivated in South Brazil and are sensitive to a variety of diseases, as the fusarial wilt which is one of, their main diseases, specially in protected environment. For the biological control of the
fusarial wilt in the cultivation of tomato and cucumber by Trichoderma and to study the population dynamics of the biocontrol agent when added to the soil, the following objectives were proposed: to study the space distribution of both Trichoderma and Fusarium in rhizosphere and bulk soil, in the cultivation of cucumber and tomato, in vegetable garden and greenhouse; to find a method for the mass selection of fungi isolates antagonistic to
Fusarium solani and Fusarium oxysporum in microenvironment, and to identify the more effective ones; to verify the action of Trichoderma harzianum isolates in the development and protection of seedlings against the fusarial wilt of tomato and cucumer, identifying the best
form of the biocontrol agent application in the control of the fusarial wilt; to analyze the population dynamics of Trichoderma and Fusarium, and of part of the microorganisms of the soil, with the addition of the biocontrol agents, in the cultivation of the tomato and cucumber, in greenhouse and vegetable garden. Both Trichoderma and Fusarium were found in the rhizosphere and bulk soil and the rhizosphere soil had the greater frequence of Trichoderma specially in greenhouse. The method of mass selection, in substrat, of fungi isolates
antagonistic to the pathogens F. solani and F. oxysporum was efficient, since the three isolates of Trichoderma harzianum selected, besides reducing the population of the
pathogens in substrate were also effective against the fusarial wilt of tomato and cucumber when applied as seed or substrate treatment. A population flutuation of Trichoderma spp. ocurred when isolates of T. harzianum were added to the soil in the cultivation of tomato and
cucumber, in vegetable garden and greenhouse. There was a tendency of the population of Trichoderma spp. to return to the initial parameters, i.e. before the biocontrole agent was added to the soil. The population of bacteria, Fusarium spp. and general fungi did not show great alterations with the presence of the isolates of the biocontrol agent.Trichoderma spp. é um dos fungos mais pesquisados na atualidade como agente de biocontrole, sendo antagonista a vários fitopatógenos em diferentes culturas, além de auxiliar no desenvolvimento vegetal. O patógeno Fusarium oxysporum causador da murcha de fusário ou fusariose é difícil de ser controlado, principalmente pela sua capacidade em manter-se no solo por longos períodos, mesmo sem a presença do hospedeiro. Estudos da dinâmica populacional de Trichoderma spp., Fusarium spp. e microbiota nativa são necessários, principalmente para observar-se o impacto da adição do agente de biocontrole no ambiente solo. Olerícolas, como pepineiro e tomateiro, são comumente cultivadas na Região Sul, porém são sensíveis a uma gama de doenças, dentre as quais, a fusariose, que figura como principal doença, principalmente em ambiente protegido. Para buscar o controle biológico da fusariose no cultivo do tomateiro e pepineiro por Trichoderma e estudar a dinâmica populacional desse agente de biocontrole quando adicionado ao solo, foram propostos os seguintes objetivos: estudar a distribuição espacial dos gêneros Trichoderma e Fusarium em solo rizosférico e não rizosférico, no cultivo do pepineiro e tomateiro, em horta e estufa; utilizar micro-ambiente para realizar a seleção massal de isolados fúngicos antagônicos a Fusarium solani e Fusarium oxysporum e identificar, em nível de espécie, os isolados fúngicos mais efetivos; verificar a ação de isolados de Trichoderma harzianum no desenvolvimento e na proteção de mudas contra a murcha de fusário do tomateiro e do pepineiro, identificando a melhor forma de aplicação do agente de biocontrole no controle da fusariose; analisar a dinâmica populacional dos gêneros Trichoderma e Fusarium e de parte da microbiota do solo, com a adição de agente de biocontrole, no cultivo do tomateiro e pepineiro, em estufa e horta. Tanto Trichoderma quanto Fusarium foram encontrados em solo rizosférico e não rizosférico de horta e estufa, sendo que Trichoderma foi encontrado em maior número de coletas em solo rizosférico de estufa. O método de seleção massal, em substrato, de isolados fúngicos antagônicos aos patógenos F. solani e F. oxysporum foi eficiente, pois os três isolados de Trichoderma harzianum selecionados, além de reduzirem a população dos patógenos em substrato, foram efetivos contra a fusariose do tomateiro e pepineiro, em tratamento de semente ou de substrato. Ocorreu flutuação populacional de Trichoderma spp. quando isolados de T. harzianum foram adicionados ao solo no cultivo do tomateiro e pepineiro, em horta e estufa. Observou-se uma tendência da população de Trichoderma spp. voltar aos parâmetros iniciais, ou seja, antes do agente de biocontrole ser adicionado ao ambiente solo. A população de bactérias, Fusarium spp. e fungos gerais não apresentou grandes alterações pela presença dos isolados do agente de biocontrole.
6
Pinto, José Tomás Madeira. "the role of arbuscular mycorrhiza in the biological control of Fusarium oxysporum in tomato". Master's thesis, Universidade de Évora, 2020. http://hdl.handle.net/10174/29043.
Testo completoAbstract (sommario):
The functional diversity amongst arbuscular mycorrhizal fungi (AMF) is scientifically
recognized, yet not practically exploited as the understanding of the interactions
between different crops and their rhizosphere microbiome is still very narrow.
Following the strategy developed by the team that guided this dissertation, this work
was aimed to test different plants (Lolium rigidum and Ornithopus compressus) as
hosts to develop AMF extraradical mycelium (ERM) for an early colonization of tomato
plants and to evaluate their role in the bioprotection against Fusarium oxysporum f. sp
radicis-lycopersici.
Although L. rigidum promoted a greater AM colonization of tomato plants, O.
compressus was most beneficial, resulting in a reduced disease incidence and a higher
dry weight in the tomato plants. The disease incidence was also lower in undisturbed
soil (intact ERM) conditions, confirming the importance of an early AM colonization,
accomplished through an intact ERM, in granting bioprotection to the tomato plants; O papel das micorrizas arbusculares no controlo biológico
de Fusarium oxysporum em tomate
Resumo:
Apesar da diversidade funcional entre fungos micorrízicos arbusculares (AMF) estar
cientificamente descrita, o conhecimento do microbioma rizosférico das culturas é
ainda bastante limitado e a sua utilização em termos práticos está ainda longe de ser
uma realidade.
Seguindo a estratégia desenvolvida pela equipa que acolheu esta dissertação, este
trabalho visou testar plantas (Lolium rigidum e Ornithopus compressus) como
hospedeiros para desenvolver micélio extraradicular (ERM) de AMF, para obter uma
colonização precoce nos tomateiros e avaliar o seu papel na bioprotecção contra
Fusarium oxysporum f. sp. radicis-lycopersici.
Apesar do L. rigidum ter promovido uma colonização micorrízica superior nos
tomateiros, o O. compressus foi mais benéfico, resultando numa redução de incidência
da doença e num aumento do peso seco dos tomateiros. A incidência da doença foi
menor em condições de solo não perturbado (ERM intacto), confirmando a importância
da colonização micorrízica precoce, obtida a partir de ERM intacto, no efeito
bioprotector a tomateiros.
7
Diarra, Cheickna. "Development of Fusarium oxysporum as a bioherbicide for the control of Striga hermonthica (Del.) Benth". Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23390.
Testo completoAbstract (sommario):
Growth chamber trials were performed to investigate optimal conditions for the small scale production of isolate M12-4A of Fusarium oxysporum on substrate materials that are locally available to subsistence farmers in West Africa. Field trials were conducted in Mali to evaluate the effectiveness of F. oxysporum for the control of Striga hermonthica and to determine the host range of F. oxysporum. F. oxysporum grew and colonized substrates over a range of temperatures (24, 28 and 32 C). Chopped sorghum straw pieces, straw fibres, and glumes supported abundant mycelial growth. Full colonization of the substrates was observed within 10 days. Production of infective propagules (microconidia and macroconidia) was optimum at 28 C. Optimum wetness of the substrates was obtained by soaking straw or glumes overnight. In field studies, the incorporation of 2.6 g of dried ground straw inoculum per sorghum seed pocket (120 cm$ sp2$), at a depth of 5 or 10 cm, resulted in a 60% reduction of emerged S. hermonthica 82 days after sowing. At harvest, biomass of Striga was also reduced by 70% and sorghum grain yield was almost doubled compared with the control. Sorghum, millet, maize, rice, fonio, cotton, cowpea, groundnut, okra and sorrel were immune to isolate M12-4A.
8
Nosir, Walid. "Gladiolus production in soil-less culture and the impact of Trichoderma harzianum and Aneurinobacillus migulanus as biological control agents". Thesis, University of Aberdeen, 2010. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=158903.
Testo completoAbstract (sommario):
Trichoderma harzianum and Aneurinobacillus migulanus were tested separately and in combination as potential biological control agents against F. oxysporum f. sp. gladioli on gladiolus in soil-less culture. The major secondary metabolites produced by Trichoderma harzianum against F. oxysporum f. sp. gladioli in the treated gladiolus corms as well as in the potato dextrose broth were studied. The impact of re-application times on the effectiveness of Trichoderma harzianum and Aneurinobacillus migulanus against gladiolus corm rot and Gladiolus production in soil-less culture was examined. Results showed that T. harzianum proved to use different mechanisms against F. oxysporum f. sp. gladioli depending on the inoculation method. T. harzianum and A. migulanus reduced host defence enzymes. Also, they increased GA 3 and IAA content in the corms. SEM showed that the suppressive mechanisms of T. harzianum and A. migulanus differed T. harzianum appeared to operate through a combination of antibiosis and substrate competition, 6-n-pentyl-6H-pyran-2-one (6PP) and harzianic acid (HA) were found as the main metabolites secreted by T. harzianum. A significant positive correlation was revealed between qPCR and CFU for both T. harzianum and F. oxysporum f. sp. gladioli. Multiple applications of T. harzianum and A. migulanus re- application was a successful strategy for suppression of F. oxysporum f. sp. gladioli. Briefly, T. harzianum was more effective than A. migulanus in F. oxysporum f. sp. gladioli suppression and Gladiolus growth enhancement in soil-less culture. The mixing strategy between T. harzianum and A. migulanus failed.
9
Bastiani, Celia. "Seed coating with Fusarium oxysporum M12-4A for the biocontrol of Striga hermonthica Del. Benth". Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32755.
Testo completoAbstract (sommario):
Fusarium oxysporum M12-4A fungus is being evaluated for the biocontrol of Striga hermonthica, a parasitic weed of African cereal crops. The production of M12-4A inoculum was assessed in four Malian villages using local technology and substrates. A delivery system using arabic gum to temporarily glue inoculum powder onto the crop seed was tested. In controlled conditions, coating of sorghum seeds with arabic gum and inoculum powder did not affect seed germination or inoculum viability. However, one week at 40°C significantly decreased the viability of the inoculum by 31%. Fungus growth and chlamydospore germination were also reduced by temperatures of 34 and 36°C. M12-4A was susceptible to the fungicide thiram (ED50 = 38.5mug). Field trials were conducted in Mali to evaluate the large-scale efficacy of the seed coating technology. F. oxysporum M12-4A was detected from some S. hermonthica tissue and soil samples using specific primers and Real Time PCR.
10
Venne, Julien. "Molecular characterization and virulence analysis of Fusarium oxysporum strains used in biological control of Striga hermonthica". Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22034.
Testo completoAbstract (sommario):
Molecular characterization of twenty-eight strains of Fusarium oxysporum using vegetative compatibility grouping and SCAR primers allowed the taxonomic confirmation of the strigae forma specialis of this fungal species. Field studies examined the virulence of three strains (M12-4A, PSM 197 and Foxy 2) inoculated in various formulations. The experiment pursued the goal of integrating several weed control measures in both maize and sorghum crops. Elements of plant breeding and Striga germination inhibitors were tested alongside of the use of a mycoherbicide. The field research was repeated in a dry climate (Eastern Burkina Faso) and in a region of abundant rainfalls (Eastern Benin) to examine effects of environmental conditions on fungus efficacy. Application of F. oxysporum was especially beneficial in maize, and when combined with a resistant cultivar, lead up to 99.7% of reduction in Striga emergence. Results will further encourage the development of several strains as viable and environmentally safe biocontrol agents to be used against Striga hermonthica.L'analyse moléculaire de vingt-huit souches de Fusarium oxysporum a été conduite en utilisant la méthode de compatibilité végétative ainsi qu'une paire d'amorces SCAR. Les résultats confirment la taxonomie forma specialis strigae de cette espèce fongique. Des essais en champ visant à comparer la virulence de trois souches (M12-4A, PSM 197 et Foxy 2) inoculées selon divers procédés ont été réalisés. L'expérience visait à intégrer plusieurs méthodes de répression de Striga dans des cultures de maïs et de sorgho. Par exemple, des variétés résistantes à la plante parasite ont été utilisées en combinaison avec le bioherbicide et des acides aminés limitant la germination des graines de Striga. Les essais ont été répétés dans un climat sec (Est du Burkina Faso) et dans un climat pluvial (Est du Bénin) afin d'évaluer l'efficacité du champignon dans différentes conditions climatiques. L'application de F. oxysporum s'est notamment avérée bénéfique dans la culture du maïs. Lorsque utilisé en association avec la variété résistante de cette culture, le champignon a réduit de 99.7% l'émergence de Striga. Ces données encourageront le développement de plusieurs isolats comme agent de lutte biologique contre la Striga hermonthica.
Libri sul tema "Fusarium oxysporum Control"
1
Marquina, J. C. Tello. Fusarium oxysporum en los cultivos intensivos del litoral Mediterráneo de España. Madrid: Ministerio de Agricultura Pesca y Alimentación, Secretaría General Técnica, 1990.
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2
Gatsinzi, François. La maladie de Panama due à Fusarium oxysporum f. sp. cubense (E.F. Smith) Synder & Hansen au sein de la Communauté économique des pays des grands lacs (Burundi, Rwanda, Zaïre). Gitega, République du Burundi: Institut de recherche agronomique et zootechnique de la C.E.P.G.L., 1989.
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3
Johnson, Dennis A. Asparagus integrated pest management. [Pullman, Wash.]: Cooperative Extension, College of Agriculture & Home Economics, Washington State University, 1986.
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4
Seminario "El Uso de Armas Biológicas en la Guerra contra las Drogas" (2000 Quito, Ecuador). El uso de armas biológicas en la guerra contra las drogas. Quito, Ecuador: Acción Ecológica, 2001.
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5
Zapata, Jimmy, Alexander Smith, Paula Mesa e Andres Diaz. Avances en el manejo y control de Fusarium oxysporum en el cultivo de uchuva (physalis peruviana). Corporacion Colombiana de Investigacion Agropecuaria - Corpoica, 2012. http://dx.doi.org/10.21930/978-958-740-091-5.
Testo completoCapitoli di libri sul tema "Fusarium oxysporum Control"
1
Jarvis, W. R. "Allelopathic Control of Fusarium Oxysporum F. Sp. Radicis-Lycopersici". In Vascular Wilt Diseases of Plants, 479–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73166-2_35.
Testo completo
2
Doley, Khirood, Mahesh Borde e Mohan Kulkarni. "AM Fungi and Trichoderma Interaction for Biological Control of Soilborne Plant Pathogen Fusarium oxysporum". In Plant Microbe Interface, 95–128. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-19831-2_4.
Testo completo
3
Chatterton, Syama, e Zamir K. Punja. "Interactions Between Clonostachys rosea f. catenulata, Fusarium oxysporum and Cucumber Roots Leading to Biological Control of Fusarium Root and Stem Rot". In Recent Developments in Management of Plant Diseases, 93–106. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-8804-9_8.
Testo completo
4
Vanachter, A. "Strategies for the Control of Bayoud Disease of the Date Palm Caused by Fusarium Oxysporum F. Sp. Albedinis". In Vascular Wilt Diseases of Plants, 501–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73166-2_38.
Testo completo
5
Beed, Fen D., Steven G. Hallett, Julien Venne e Alan K. Watson. "BIOCONTROL USING FUSARIUM OXYSPORUM: A CRITICAL COMPONENT OF INTEGRATED STRIGA MANAGEMENT". In Integrating New Technologies for Striga Control, 283–300. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812771506_0021.
Testo completo
6
Singh, Chandan, e Deepak Vyas. "The Trends in the Evaluation of Fusarium Wilt of Chickpea". In Diagnostics of Plant Diseases [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95612.
Testo completoAbstract (sommario):
Chickpea (Cicer arietinum L.) is one of the important annual legume crops, cultivated throughout the India since ancient time. It is also grown in many countries of the world. The crop has been facing numerous biotic and abiotic constraints. Among biotic constraint crop affected adversely by diseases, caused by many pathogens. Ever since 1918 when for the first time wilt disease of chickpea was reported and Fusarium oxysporum f. sp. ciceri was the causal organism many strategies have been adopted to control the wilt disease. The controlling methods included conventional as well as modern one. However, more and more emphasis was given on biological control agents such as AM fungi and Trichoderma. The role of AM fungi have been evaluated for controlling the wilt disease similarly role of Trichoderma is thoroughly established biological control agent against Fusarium wilt. With the advent of modern tools and techniques developing markers, resistant varieties, all such sources enable us to reduce the effect of pathogens. Here an attempted has been made to acknowledge the trend of disease management and evaluation strategies of Fusarium wilt of chickpea for getting better yields of the crop.
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Arenas, Omar Romero, Jesús Francisco López Olguín, Dionicio Juárez Ramón, Dora Ma Sangerman-Jarquín, Conrado Parraguirre Lezama, Primo Sánchez Morales e Manuel Huerta Lara. "Biological Control of Fusarium oxysporum in Tomato Seedling Production with Mexican Strains of Trichoderma". In Fusarium - Plant Diseases, Pathogen Diversity, Genetic Diversity, Resistance and Molecular Markers. InTech, 2018. http://dx.doi.org/10.5772/intechopen.72878.
Testo completo
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Soytong, Kasem, Somdej Kahonokmedhakul, Jiaojiao Song e Rujira Tongon. "Chaetomium Application in Agriculture". In Technology in Agriculture [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99402.
Testo completoAbstract (sommario):
Chaetomium species for plant disease control are reported to be antagonize many plant pathogens. It is a new broad spectrum biological fungicide from Chaetomium species which firstly discovered and patented No. 6266, International Code: AO 1 N 25/12, and registered as Ketomium® mycofungicide for plant disease control in Thailand, Laos, Vietnam, Cambodia and China. Chaetoimum biofungicide and biostimulants are applied to implement integrated plant disease control. It showed protective and curative effects in controlling plant disease and promoting plant growth. It has been successfully applied to the infested soils with integrated cultural control for the long-term protection against rice blast (Magnaporte oryzae), durian and black Pepper rot (Piper nigram L.) (Phytophthora palmivora), citrus rot (Phytophthora parasitica) and strawberry rot (Fragaria spp.) caused by Phytophthora cactorum, wilt of tomato (Fusarium oxysporum f. sp. lycopersici), basal rot of corn (Sclerotium rolfsii) and anthracnose (Colletotrichum spp.) etc. Further research is reported on the other bioactive compounds from active strains of Chaetomium spp. We have discovered various new compounds from Ch. globosum, Ch. cupreum, Ch. elatum, Ch. cochliodes, Ch. brasiliense, Ch. lucknowense, Ch. longirostre and Ch. siamense. These new compounds are not only inhibiting human pathogens (anti-malaria, anti-tuberculosis, anti-cancer cell lines and anti-C. albicans etc) but also plant pathogens as well. These active natural products from different strains of Chaetomium spp. are further developed to be biodegradable nanoparticles from active metabolites as a new discovery of scientific investigation which used to induce plant immunity, namely microbial degradable nano-elicitors for inducing immunity through phytoalexin production in plants e.g. inducing tomato to produce alpha-tomaline against Fusarium wilt of tomato, capsidiol against chili anthracnose, sakuranitin and oryzalexin B against rice blast, scopletin and anthrocyaidin against Phytophthora or Pythium rot Durian and scoparone against Phytophthora or Pythium rot of citrus. Chaetomium biofungicide can be applied instead of toxic chemical fungicides to control plant diseases.
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RATTINK, H. "Interaction between Level of Resistance of Carnation Cultivars and Biological Control of Fusarium Oxysporum F. Sp. Dianthi". In Biotic Interactions and Soil-Borne Diseases, 172–74. Elsevier, 1991. http://dx.doi.org/10.1016/b978-0-444-88728-3.50031-7.
Testo completoAtti di convegni sul tema "Fusarium oxysporum Control"
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"The Effect of Temperature Pressure on Multiantagonists Streptomyces sp., Tricho-derma sp. Biological Control of Fusarium oxysporum Wilt Pathogens". In Seminar Nasional Magister Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur. Galaxy Science, 2020. http://dx.doi.org/10.11594/nstp.2020.0609.
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Pedrotti, Carine, Bianca Bolson e Joséli Schwambach. "Extrato pirolenhoso de Acacia mearnsii De Wild. como controle alternativo de Fusarium oxysporum Schltdl. em repolho (Brassica oleracea L. var. capitata)". In I Simpósio Estadual de Produtos Naturais. ,: Even3, 2021. http://dx.doi.org/10.29327/isedpmdes2020.332320.
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