Articles de revues : « Acremonium sp »

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Cordoba, A., et L. Fraenza. « Mycétome à Acremonium sp. » Annales de Dermatologie et de Vénéréologie 132, n^o 2 (février 2005) : 194. http://dx.doi.org/10.1016/s0151-9638(05)79241-3.

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., TRIADIATI, DIANA AGUSTIN CAROLINA et MIFTAHUDIN . « Induksi Pembentukan Gaharu Menggunakan Berbagai Media Tanam dan Cendawan Acremonium sp. dan Fusarium sp. Pada Aquilaria crassna ». Jurnal Sumberdaya Hayati 2, n^o 1 (14 novembre 2016) : 1–6. http://dx.doi.org/10.29244/jsdh.2.1.1-6.

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Aquilaria crassna is one of the Aquilaria species that could produce agarwood. agarwood production of A. crassna can be induced by microfungi as an inoculant. Ecological interaction between the host plant, wounding and inoculant in the formation of agarwood has not yet clearly. other factors like the plant ages, plant species, environ- ment also played important roles in the formation of agarwood. This research aimed to determine the influence of the combination between planting media and Acremonium sp. and Fusarium sp. to agarwood quality of Aquilaria crassna. The experiment was consisted of two factors, which were five planting media and two inoculants fungi i.e. Acremonium sp. and Fusarium sp. The observed parameters were the percentage of senescence leaves, color of wood, level of fragrant and terpenoid content. The best agarwood fragrant was produced by the seedlings that were treated with either combination of husk charcoal media enriched with NPK fertilizer and Acremonium sp. or the combina- tion between husk charcoal media enriched with Hoagland modified solution and Fusarium sp.. The darkest color of wood was produced by the seedlings that were treated with combination of husk charcoal media enriched with NPK fertilizer and Acremonium sp., as well as for the same media with Fusarium sp.. during the experiment terpenoid could not be detected from the treated seedlings. Acremonium sp. caused more leave senescence than that of Fusarium sp..

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Silva, J. H., et R. T. R. Monteiro. « Degradação de xenobióticos por fungos filamentosos isolados de areia fenólica ». Revista Brasileira de Ciência do Solo 24, n^o 3 (septembre 2000) : 669–74. http://dx.doi.org/10.1590/s0100-06832000000300019.

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Microrganismos foram isolados de areia fenólica resultante de atividades metalúrgicas, utilizando meio mínimo para fungos e pentaclorofenol (PCF) como única fonte de carbono. Após quatro repiques sucessivos em intervalos de 15 dias de incubação, as culturas foram plaqueadas em meio de Martin. Três gêneros de fungos foram isolados e identificados como Acremonium sp., Paecilomyces sp. e Penicillium sp. Estes foram testados para degradar os corantes índigo e RBBR (Azul Brilhante de Remazol - R) e o organoclorado PCF. A descoloração do índigo foi de 99%, para Paecilomyces e Penicillium, e de 74%, para Acremonium, e a de RBBR foi de 16%, para Penicillium; 14%, para Acremonium, e 5%, para Paecilomyces. Usando azul de bromotimol como indicador de degradação de PCF, foram obtidos 24% de descoloração para Acremonium; 22%, para Penicillium, e 17%, para Paecilomyces Utilizando cromatografia gasosa, detectou-se degradação de PCF de 69%, para Penicillium; 65%, para Paecilomyces, e 40% para Acremonium, respectivamente. Os resultados mostraram que foi possível isolar microrganismos de uma areia de fundição, altamente contaminada com fenóis, e os fungos isolados foram capazes de degradar PCF e outros xenobióticos testados.

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Sadrati, Nouari, Amina Zerroug, Benselhoub Nedjemeddine et Hamadi Sofiane. « Isolation of Endophytic Fungi from Algerian Plant Salicornia arabica and Screening of their Antimicrobial Activity ». Turkish Journal of Agriculture - Food Science and Technology 10, n^o 10 (28 octobre 2022) : 1934–43. http://dx.doi.org/10.24925/turjaf.v10i10.1934-1943.5388.

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The present study was aimed at isolating endophytic fungi from the Algerian medicinal plant Salicornia arabica and analyzing its antifungal and antibacterial effects. The morphological analysis allowed us to identify endophyte isolates at the genus level as belonging to 8 different genera, Aureobasidium sp., Ulocladium sp., Acremonium sp., Stemphylium sp., Penicillium sp., Aspergillus sp., Phoma sp., and Chrysosporium sp. with frequency percentages 6.7%, 13.3%, 20%, 13.3%, 13.3%, 13.3%, 6.7%, 6.7%, respectively. The antimicrobial activity was caried out using the agar plug diffusion method. The three isolates of the genus Acremonium sp. were highly active against all tested bacteria except Enterococcus faecalis. Comparison of the means of inhibition zones of the active isolates showed that the three fungal isolates of Acremonium were the most active, followed by Chrysosporium sp., Penicillium sp.1, Aureobasidium sp., Stemphylium sp.1, Penicillium sp. .2, and Ulocladium sp.2. The widest zones of inhibition were 22.33 and 20.33mm for Acremonium sp.3, 18.33 and 15.33mm for Aureobasidium sp., 19.33mm for Penicillium sp.1, and 19 and 15mm for Stemphylium sp.1 obtained against Bacillus cereus and Staphylococcus aureus bacteria, respectively. Regarding the antifungal activity, the best inhibitory activity was 80 and 64.70% obtained with the isolate Penicillium sp.2 against Fusarium oxysporum f.sp. ciccri and Fusarium oxysporum f.sp. albedinis, respectively, and of 63.29 and 58% observed against Phytophthora infestans and Fusarium oxysporum f.sp. ciccri, respectively, with the endophytic isolate Aspergillus sp.2. These results indicated the possible prospect of endophytes fungi isolated from Salicornia arabica as a promising resource of antimicrobial compounds and in the quest for the potential starting points for the development of new antibiotics.

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Isaka, Masahiko, Arunrat Yangchum, Malipan Sappan, Rapheephat Suvannakad et Prasert Srikitikulchai. « Cyclohexadepsipeptides from Acremonium sp. BCC 28424 ». Tetrahedron 67, n^o 41 (octobre 2011) : 7929–35. http://dx.doi.org/10.1016/j.tet.2011.08.041.

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Tsehmister, G. V. « SYNTHESIS OF ETHYLENE WITH ACREMONIUM SP. 502 PHYTOPATHOGENIC FUNGI ». Agriciltural microbiology 22 (29 décembre 2015) : 9–12. http://dx.doi.org/10.35868/1997-3004.22.9-12.

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The ability of Acremonium sp. 502 phytopathogenic fungi to produce ethylene was studied.It was found that Acremonium sp. 502 is able tosynthesize ethylene. The highest level of biosynthesis was recorded after 5 weeks of cultivationthat coincides with the terms of the highest levelof synthesis of cellulases that are involved in thepenetration of the fungus into the plant. A suggestion that ethylene synthesis plays a certainrole in the mechanism of pathogenesis of cucumbers plants is offered.

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Ghisalberti, Emilio L., Jaih R. Hargreaves et Elena McConville. « Butenolides from a cultured microfungus, Acremonium sp ». Natural Product Research 18, n^o 2 (1 avril 2004) : 105–9. http://dx.doi.org/10.1080/1478641032000101714.

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Ameen, Fuad, Saleh AlNAdhari et Ali A. Al-Homaidan. « Marine fungi showing multifunctional activity against human pathogenic microbes and cancer ». PLOS ONE 17, n^o 11 (28 novembre 2022) : e0276926. http://dx.doi.org/10.1371/journal.pone.0276926.

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Multifunctional drugs have shown great promise in biomedicine. Organisms with antimicrobial and anticancer activity in combination with antioxidant activity need further research. The Red Sea and the Arabian Gulf coasts were randomly sampled to find fungi with multifunctional activity. One hundred strains (98 fungi and 2 lichenized forms) were isolated from 15 locations. One-third of the isolates inhibited clinical bacterial (Staphylococcus aureus, Bacillus subtilis, Vibrio cholerae, Salmonella typhi, S. paratyphi) and fungal pathogens (Talaromycets marneffei, Malassezia globose, Cryptococcus neoformans, Candida albicans, Aspergillus fumigatus) and four cancer cell lines (Hep G2 liver, A-549 lung, A-431skin, MCF 7 breast cancer). Bacterial and cancer inhibition was often accompanied by a high antioxidant activity, as indicated by the principal component analysis (PCA). PCA also indicated that fungal and bacterial pathogens appeared to be inhibited mostly by different marine fungal isolates. Strains with multifunctional activity were found more from the Rea Sea than from the Arabian Gulf coasts. The highest potential for multifunctional drugs were observed for Acremonium sp., Acrocalymma sp., Acrocalymma africana, Acrocalymma medicaginis (activity reported for the first time), Aspergillus sp. Cladosporium oxysporum, Emericellopsis alkaline, Microdochium sp., and Phomopsis glabrae. Lung, skin, and breast cancers were inhibited 85%–97% by Acremonium sp, while most of the isolates showed low inhibition (ca 20%). The highest antifungal activity was observed for Acremonium sp., Diaporthe hubeiensis, Lasiodiplodia theobromae, and Nannizia gypsea. One Acremonium sp. is of particular interest to offer a multifunctional drug; it displayed both antifungal and antibacterial activity combined with high antioxidant activity (DPPH scavenging 97%). A. medicaginis displayed combined antibacterial, anticancer, and antioxidant activity being of high interest. Several genera and some species included strains with both high and low biological activities pointing out the need to study several isolates to find the most efficient strains for biomedical applications.

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Ito, T., I. Okane, A. Nakagiri et W. Gams. « Two species of Acremonium section Acremonium : A. borodinense sp. nov. and A. cavaraeanum rediscovered ». Mycological Research 104, n^o 1 (janvier 2000) : 77–80. http://dx.doi.org/10.1017/s0953756299008977.

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YANG, CHUN-LIN, XIU-LAN XU, RAJESH JEEWON, SARANYAPHAT BOONMEE, YING-GAO LIU et KEVIN D. HYDE. « Acremonium arthrinii sp. nov., a mycopathogenic fungus on Arthrinium yunnanum ». Phytotaxa 420, n^o 4 (15 octobre 2019) : 283–99. http://dx.doi.org/10.11646/phytotaxa.420.4.4.

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Acremonium arthrinii sp. nov. was collected from Phyllostachys heteroclada in the forest of Sichuan Province, China. This mycopathogenic fungus was frequently found on the top of the ascomata of Arthrinium yunnanum, and presumably causes its death. In this study, the new species was examined morphologically and maximum likelihood and Bayesian analyses of a combined LSU, SSU, ITS and TEF 1-α were performed to clarify the taxonomic affinity of the species. Acremonium arthrinii can be distinguished from other Acremonium species based on conidiogenesis, size differences in conidiophores, conidiogenous cells and conidia, and its DNA sequence differences and phylogeny. Detailed descriptions, micrographs and phylogenetic relationships of the new taxon were provided.

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Strabelli, Tânia Mara Varejão, David Everson Uip, Vicente Amato Neto, Edimar Alcides Bocchi, Maria de Lourdes Higuchi, Noedir Antonio Groppo Stolf, Antonio Carlos Pereira Barretto et al. « Infecção por Acremonium sp após transplante de coração ». Revista da Sociedade Brasileira de Medicina Tropical 23, n^o 4 (décembre 1990) : 233. http://dx.doi.org/10.1590/s0037-86821990000400010.

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NAKAI, RYUICHIRO, HARUMI OGAWA, AKIRA ASAI, KATSUHIKO ANDO, TSUTOMU AGAISUMA, SHIGEKI MAISUMIYA, SHIRO AKINAGA, YOSHINORI YAMASHITA et TAMIO MIZUKAMI. « UCS1025A, a Novel Antibiotic Produced by Acremonium sp. » Journal of Antibiotics 53, n^o 3 (2000) : 294–96. http://dx.doi.org/10.7164/antibiotics.53.294.

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Iijima, Masatomi, Masahide Amemiya, Ryuichi Sawa, Yumiko Kubota, Takao Kunisada, Isao Momose, Manabu Kawada et Masakatsu Shibasaki. « Acremopeptin, a new peptaibol from Acremonium sp. PF1450 ». Journal of Antibiotics 70, n^o 6 (15 février 2017) : 791–94. http://dx.doi.org/10.1038/ja.2017.15.

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Liermann, Johannes C., Eckhard Thines, Heidrun Anke et Till Opatz. « Anthranicine, an Unusual Cyclic Hexapeptide from Acremonium sp. A29-2004 ». Zeitschrift für Naturforschung B 64, n^o 6 (1 juin 2009) : 727–30. http://dx.doi.org/10.1515/znb-2009-0619.

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Anthranicine, a cyclic hexapeptide containing anthranilic acid and pipecolic acid, was isolated from a mycophilic Acremonium species. The structure and stereochemistry of the compound featuring two D-configurated amino acids are discussed.

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Labuda, Roman. « Newly recorded Acremonium species from Slovakia : Acremonium atrogriseum, A. roseogriseum, A. spinosum, and Acremonium sp. (anamorph of Neocosmospora vasinfecta var. africana). » Czech Mycology 57, n^o 3-4 (10 février 2005) : 239–48. http://dx.doi.org/10.33585/cmy.57304.

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Khodosovtsev, Alexander, Valeriy Darmostuk, Ave Suija et Alexander Ordynets. « Didymocyrtis trassii sp. nov. and other lichenicolous fungi on Cetraria aculeata ». Lichenologist 50, n^o 5 (septembre 2018) : 529–40. http://dx.doi.org/10.1017/s0024282918000294.

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AbstractRecently, nine species of lichenicolous fungi were found growing on Cetraria aculeata (Parmeliaceae) in a sand dune system in the Ukraine. One of them, Didymocyrtis trassii, is described here as new to science. This species is similar to D. pseudeverniae but differs in having smaller pycnidia, smaller obpyriform to clavate conidia as well as its DNA sequence. The new monotypic lichenicolous genus Katherinomyces is described here. Acremonium lichenicola s. l., Eonema pyriforme, Didymocyrtis cladoniicola and Lichenoconium erodens are reported for the first time on Cetraria aculeata. Furthermore, E. pyriforme is reported for the first time from lichen thalli. Acremonium lichenicola, E. pyriforme and Taeniolella rolfii are new for the mycobiota of the Ukraine. A key to the eleven known lichenicolous species on Cetraria aculeata is provided.

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Maciá-Vicente, Jose G., Hans-Börje Jansson, Kurt Mendgen et Luis V. Lopez-Llorca. « Colonization of barley roots by endophytic fungi and their reduction of take-all caused by Gaeumannomyces graminis var. tritici ». Canadian Journal of Microbiology 54, n^o 8 (août 2008) : 600–609. http://dx.doi.org/10.1139/w08-047.

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Fungal root endophytes obtained from natural vegetation were tested for antifungal activity in dual culture tests against the root pathogen Gaeumannomyces graminis var. tritici. Fifteen isolates, including Acremonium blochii , Acremonium furcatum , Aspergillus fumigatus , Cylindrocarpon sp., Cylindrocarpon destructans , Dactylaria sp., Fusarium equiseti, Phoma herbarum , Phoma leveillei , and a sterile mycelium, selected based on the dual culture test, were inoculated on barley roots in growth tubes under axenic conditions, both in the absence and presence of G. graminis var. tritici. All isolates colonized the rhizosphere and very often the root cortex without causing disease symptoms and without affecting plant growth. Eight isolates significantly reduced the symptoms caused by G. graminis var. tritici, and 6 of them reduced its presence in the roots.

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Heras-Martínez, Héctor Mario, Laila Nayzzel Muñoz-Castellanos, Alejandro Bugarín, Víctor Hugo Ramos-Sánchez, Iván Salmerón Ochoa et David Chávez-Flores. « Biodegradation of polycyclic aromatic hydrocarbons by Acremonium sp. activity ». Revista Internacional de Contaminación Ambiental 38 (10 août 2022) : 261–69. http://dx.doi.org/10.20937/rica.54462.

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Chihuahua State is the largest apple producer in Mexico. To prevent apples from freezing during the winter, petroleum-based fuels are used to heat the orchards. In this research work, a microorganism isolated from inside of a fuel plastic container was identified through morphological analysis as the fungus Acremonium sp. By cultivating the fungus in potato dextrose agar medium (PDA), we were able to study the biodegradation rates of three polycyclic aromatic hydrocarbons (PAHs). The isolated microorganism was incubated at 28 ºC in M9 mineral liquid medium using phenanthrene, anthracene, and pyrene as the only carbon source at a concentration of 50 µg/mL. Degradation of PAHs was monitored using an environmentally friendly reverse phase ultra-high-performance liquid chromatography (UHPLC) system, with a C18 column, 30% water acidified at 0.1% with trifluoroacetic acid, and 70% acetonitrile as the mobile phase, 40 ºC column temperature, and UV detection at 254 nm. After 30 days of biodegradation (optimal time), the final mean concentration for individual degradation experiments were 2.51 µg/mL phenanthrene, 3.02 µg/mL anthracene and 5.53 µg/mL pyrene. Those final concentrations indicate degradation percentile of 95%, 94%, and 89%, respectively. Biodegradation experiments combining all three PAHs showed similarly high degradation percentiles of 93%, 94%, and 85% for phenanthrene, anthracene, and pyrene, respectively. The dry weight average at day 30 in the individual and combined degradation experiments was 2.34 mg/mg PAHs degraded.

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Hirose, Junzo, Takeshi Sakurai, Kaori Imamura, Hideomi Watanabe, Hiroyuki Iwamoto, Keitaro Hiromi, Homare Itoh, Takashi Shin et Sawao Murao. « Characterization of Ascorbate Oxidase from Acremonium sp. HI-25 ». Journal of Biochemistry 115, n^o 5 (mai 1994) : 811–13. http://dx.doi.org/10.1093/oxfordjournals.jbchem.a124420.

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TOKI, SHINICHIRO, KATSUAHIKO ANDO, MAYUNI YOSHIDA et YUZURU MATSUDA. « PS-990, a novel neuritogenic compound from Acremonium sp. » Journal of Antibiotics 47, n^o 11 (1994) : 1175–81. http://dx.doi.org/10.7164/antibiotics.47.1175.

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Bunyapaiboonsri, Taridaporn, Pornrapee Vongvilai, Patchanee Auncharoen et Masahiko Isaka. « Cyclohexadepsipeptides from the Filamentous Fungus Acremonium sp. BCC 2629 ». Helvetica Chimica Acta 95, n^o 6 (juin 2012) : 963–72. http://dx.doi.org/10.1002/hlca.201100482.

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Izumi, Kazuo, Kenji Yamamoto, Tatsurokuro Tochikura et Yoshio Hirabayashi. « Serological study using α-N-acetylgalactosaminidase from Acremonium sp. » Biochimica et Biophysica Acta (BBA) - General Subjects 1116, n^o 1 (mars 1992) : 72–74. http://dx.doi.org/10.1016/0304-4165(92)90130-m.

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MURAO, Sawao, Homare ITOH, Shigeki FUKUYASU, Kazuo HIRAYAMA et Takashi SHIN. « An Acidic Ascorbate Oxidase Produced by Acremonium sp. HI-25. » Agricultural and Biological Chemistry 55, n^o 6 (1991) : 1693–94. http://dx.doi.org/10.1271/bbb1961.55.1693.

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KLEINWÄCHTER, PETER, BRIGITTE SCHLEGEL, HEINRICH DÖRFELT et UDO GRÄFE. « Spirobenzofuran, a New Bioactive Metabolite from Acremonium sp. HKI 0230. » Journal of Antibiotics 54, n^o 6 (2001) : 526–27. http://dx.doi.org/10.7164/antibiotics.54.526.

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Murao, Sawao, Homare Itoh, Shigeki Fukuyasu, Kazuo Hirayama et Takashi Shin. « An Acidic Ascorbate Oxidase Produced by Acremonium sp. HI-25 ». Agricultural and Biological Chemistry 55, n^o 6 (1 juin 1991) : 1693–94. http://dx.doi.org/10.1080/00021369.1991.10870817.

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Kawada, Manabu, Ihomi Usami, Tetsuya Someno, Takumi Watanabe, Hikaru Abe, Hiroyuki Inoue, Shun-ichi Ohba et al. « NBRI17671, a new antitumor compound, produced by Acremonium sp. CR17671 ». Journal of Antibiotics 63, n^o 5 (9 avril 2010) : 237–43. http://dx.doi.org/10.1038/ja.2010.28.

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Nakai, Ryuichiro, Harumi Ogawa, Akira Asai, Katsuhiko Ando, Tsutomu Agatsuma, Shigeki Matsumiya, Shiro Akinaga, Yoshinori Yamashita et Tamio Mizukami. « ChemInform Abstract : UCS1025A, a Novel Antibiotic Produced by Acremonium sp. » ChemInform 31, n^o 31 (7 juin 2010) : no. http://dx.doi.org/10.1002/chin.200031234.

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Singh, D. P., et T. P. Mall. « Folicolous Fungi of Medicinal Plants in North Western Tarai region of Uttar Pradesh ». Environment Conservation Journal 8, n^o 3 (24 décembre 2007) : 13–16. http://dx.doi.org/10.36953/ecj.2007.080305.

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The North Western Tarai be lt of U.P. is next only to Eastern & Western ghats as on e of the hot spots of Biodiversity in general and the diversity of fungal organisms inhabiting plant leaves in particular. Keeping the above view in mind a survey trip was organized for Bhinga forest range, Shrawasti on Oct 29, 2006 and Dudwa Tiger Reserve , Kh eri Lakh impu r on Nov 23 and 24, 2006 for col lection and docu mentation about eth nomedi cinal plan ts as well as Fol icolous fun gi in fecti ng the medi cinal plants. During the su rvey more than fifty five ethnomedicinal plants were collected. Out of these plants about 25 plants species represented by 20 Genera of sixteen families have been found infected with sixteen different fungal species. Cercospora sp. and Stenella sp. are recorded to infected four plants each. Cercospora was recorded on Cassia fistula, Momordica sp., Clerodendron and Lagerstraemia where as Stenella sp. was recorded on Celastrus paniculatus, Litisea grutinosa, Teliocora acuminata, Ficus sacra. Phoma sp. was found on Glycosmis pentaphylla, Teliocora sp. and Mallotus philipinsis. Zygosporium was recorded on Mallotus philipinsis and Sterculia balen Remaining fungus were recorded only on single host viz. Leptozyphium on Diosphros; Stenella cassiae on Cassia fistula; Alternaria sp. on Ichnocarpus frutiscens; Sirosporium on Carica carandas; Passalora sp. on Calotropis procera; uredial stage of rust on Tectona grandis; Pseudocercospora on Ziziphus; Meliola sp. on Mallotus philipinsis; Acremonium zonatum on Teliocora sp; Fuligomyces on Litisea chinensis; Cladosporium on Ficus carica and Cephaloros sp on Justicia sp. Teliocora sp. had been recorded to be infected by three different fungus viz Phoma sp., Stenella sp. and Acremonium zonatum where as Mallotus philippinsis was found infected with Zygosporium, Phoma sp. and Meliola sp.

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Hargreaves, J., J. Park, E. L. Ghisalberti, K. Sivasithamparam, B. W. Skelton et A. H. White. « Bioactive Butyrolactones from Fungi ». Australian Journal of Chemistry 55, n^o 10 (2002) : 625. http://dx.doi.org/10.1071/ch02154.

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Investigation of a strain of an Acremonium sp fungus has led to the isolation of two butyrolactones not previously described as naturally occurring. The structures were deduced primarily by spectroscopic means, and, in the case of (2), confirmed by a single-crystal X-ray study.

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Miyata, Naoyuki, Yukinori Tani, Kanako Maruo, Hiroshi Tsuno, Masahiro Sakata et Keisuke Iwahori. « Manganese(IV) Oxide Production by Acremonium sp. Strain KR21-2 and Extracellular Mn(II) Oxidase Activity ». Applied and Environmental Microbiology 72, n^o 10 (octobre 2006) : 6467–73. http://dx.doi.org/10.1128/aem.00417-06.

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ABSTRACT Ascomycetes that can deposit Mn(III, IV) oxides are widespread in aquatic and soil environments, yet the mechanism(s) involved in Mn oxide deposition remains unclear. A Mn(II)-oxidizing ascomycete, Acremonium sp. strain KR21-2, produced a Mn oxide phase with filamentous nanostructures. X-ray absorption near-edge structure (XANES) spectroscopy showed that the Mn phase was primarily Mn(IV). We purified to homogeneity a laccase-like enzyme with Mn(II) oxidase activity from cultures of strain KR21-2. The purified enzyme oxidized Mn(II) to yield suspended Mn particles; XANES spectra indicated that Mn(II) had been converted to Mn(IV). The pH optimum for Mn(II) oxidation was 7.0, and the apparent half-saturation constant was 0.20 mM. The enzyme oxidized ABTS [2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid)] (pH optimum, 5.5; Km , 1.2 mM) and contained two copper atoms per molecule. Moreover, the N-terminal amino acid sequence (residues 3 to 25) was 61% identical with the corresponding sequence of an Acremonium polyphenol oxidase and 57% identical with that of a Myrothecium bilirubin oxidase. These results provide the first evidence that a fungal multicopper oxidase can convert Mn(II) to Mn(IV) oxide. The present study reinforces the notion of the contribution of multicopper oxidase to microbially mediated precipitation of Mn oxides and suggests that Acremonium sp. strain KR21-2 is a good model for understanding the oxidation of Mn in diverse ascomycetes.

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Dornelas, Aline Silvestre Pereira, Renato de Almeida Sarmento, Gil Rodrigues Dos Santos, Mariela Otoni Nascimento et Danival José De Souza. « Fungos Filamentosos Associados às Espécies Atta sexdens (Linnaeus) e Atta laevigata (F. Smith) (Hymenoptera : Formicidae) ». EntomoBrasilis 9, n^o 1 (29 avril 2016) : 26–30. http://dx.doi.org/10.12741/ebrasilis.v9i1.528.

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Resumo. As formigas-cortadeiras, Atta e Acromyrmex, são consideradas as principais pragas no sistema agroflorestal da Região Neotropical. Isso porque cortam material vegetal que servirá de alimento ao fungo simbionte que elas cultivam. Diversos fungos, que ocorrem em condições naturais no solo, podem ser encontrados associados às formigas-cortadeiras, muitos deles comprovadamente entomopatogênicos. No entanto, esses agentes não têm sido usados em programa de controle biológico dessas formigas. O objetivo deste estudo foi isolar e identificar fungos filamentosos associados às operárias de Atta sexdens e Atta laevigata e testar sua patogenicidade contra operárias da formiga A. sexdens. Para isolamento dos fungos, foi coletado um total de 180 operárias forrageadoras em seis colônias (30 por colônia), sendo 90 de A. sexdens e 90 de A. laevigata. Dentre os fungos isolados das operárias de A. sexdens,foram identificados Metarhizium anisopliae (Metchnikoff) Sorokin, Aspergillus flavus Link, Acremonium sp. 1, Aspergillus sp.1, Colletotrichum sp. e Acremonium sp. 2. Os fungos encontrados em associação com as operárias da A. laevigata foram Mucor sp., Aspergillus flavus, Fusarium solani (Martius) Saccardo, A. niger van Tieghem. A patogenicidade de três desses fungos (A. flavus, A. niger e M. anisopliae) foi testada em operárias de A. sexdens. Nos testes com A. niger e M. anisopliae, o tempo para causar mortalidade de 50% das operárias foi de cinco dias (TL50 = 5 dias) e, nos dois casos, o TL50 foi significativamente inferior ao tratamento controle. Assim, testes devem prosseguir com esses isolados que apresentam potencial no uso do controle biológico das formigas-cortadeiras.Filamentous Fungi Associated With Atta sexdens (Linnaeus) and Atta laevigata (F. Smith) (Hymenoptera: Formicidae)Abstract. Leaf-cutting ants, Atta and Acromyrmex genera, are considered major pests in a neotropical agroforestry system because they cut plant material that will serve as food for the symbiotic fungus cultivated by them. Several fungi naturally occurring in the soil can be found associated with leaf-cutting ants, many of them are demonstrably entomopathogenic. However, these agents have not been used as biological control of leaf-cutting ants. The aim of this study was to isolate and to identify filamentous fungi associated with forage workers of Atta sexdens (Linnaeus) and Atta laevigata (F. Smith) and to test their pathogenicity against workers from laboratory colonies. To isolate filamentous fungi, it was collected a total of 180 forage workers (30 in each colony) in six field colonies, 90 of A. sexdens and 90 workers of A. laevigata. Six fungi species from A. sexdens were isolated and identified: Metarhizium anisopliae (Metchnikoff) Sorokin, Aspergillus flavus Link, Acremonium sp. 1, Aspergillus sp. 1, Colletotrichum sp. and Acremonium sp. 2. In A. laevigata, it was found four species: Mucor sp., Aspergillus flavus, Fusarium solani (Martius) Saccardo, Aspergillus niger van Tieghem. Three of these fungi were selected for pathogenicity tests against workers of the leaf-cutting ant A. sexdens: A. flavus, A. niger and M. anisopliae. The LT50 (time to cause 50% mortality of workers) in tests with A. niger and M. anisopliae were five days and significantly lower than the control group. Therefore, further tests should proceed with those isolates to demonstrate their potential use in the biological control of leaf-cutting ants.

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Jayus, Jay, Ahmad Nafi' et Anis Shabrina Hanifa. « DEGRADASI KOMPONEN SELULOSA, HEMISELULOSA, DAN PATI TEPUNG KULIT UBI KAYU MENJADI GULA REDUKSI OLEH Aspergillus niger, Trichoderma viride, DAN Acremonium sp. IMI 383068 ». JURNAL AGROTEKNOLOGI 13, n^o 01 (18 juin 2019) : 34. http://dx.doi.org/10.19184/j-agt.v13i01.7868.

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As the solid waste produced from cassava processing industry such as tapioca factory or its derivatives, the cassava peel is potential to be use as a source of reducing sugar through hydrolysis process, since the peels contains a high amount of starch and lignocellulose components. The more environmentally friendly enzymatic hydrolysis using several microorganisms will be introduced in this study as an alternative to avoid the unsafe acid hydrolysis. However, the hydrolysis process using a single microorganism is not efficient since the hydrolytic enzyme produced is limited to a single enzyme, while the component in the cassava peels to be hydrolyzed is diverse which include cellulose, lignin, hemicellulose and starch. Therefore, it is necessary to optimize the hydrolysis process by combining several microorganisms (A. niger, T. viride and Acremonium sp. IMI 383068) which produced different specificity of hydrolytic enzyme depending on the substrate available in the cassava peels. The aims of this research were to determine the effect of single and mixed culture on the amount of reducing sugar released during the simultaneous cultivation. The result showed that the use of simultaneous mixed cultures during hydrolysis process was able to produce higher reducing sugar compare to that of single culture. The hydrolysis of cassava flour using a single strain of A. niger, T. viride and Acremonium sp. IMI 383068 respectively produced 4.86 g/L, 4.02 g/L, and 1.68 g/L of reducing sugar, while the hydrolysis of it using simultaneous mixed cultures of A. niger, T. viride, and Acremonium sp. IMI 383068 produced 7.23 g/L of reducing sugar. Keywords: cassava peels, hydrolysis, reducing sugar

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Tsekhmister, G. V. « THE STUDY OF THE CULTURAL- MORPHOLOGICAL FEATURES OF PHYTOPATHOGENIC FUNGUS ACREMONIUMSP. 502 ». Agriciltural microbiology 20 (22 décembre 2014) : 49–53. http://dx.doi.org/10.35868/1997-3004.20.49-53.

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The paper provides the description of cultural-morphological features of phytopathogenic fungus Acremonium sp. 502 belonging to the group of slow-growing bacteria. The highest radial growth rate was achieved on a potatoglucose agar (0.1375 ± 0.0011 mm/h); the optimum medium pH was 8.5; the optimum temperature — 26 °C.

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Pande, Bhawana, et R. Gupta. « Role of Seed Mycoflora on Seed Germination of Oroxylum indicum (L.) Vent. in Kumaun region of Indian Central Himalaya ». Indian Journal of Forestry 36, n^o 1 (1 mars 2013) : 83–89. http://dx.doi.org/10.54207/bsmps1000-2013-3312h5.

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A number of fungus was isolated from the seeds of Oroxylum indicum (L.) Vent. The mycoflora associated with the seeds of this tree have not been previously reported from Kumaun region of Indian Central Himalaya. During the course of study mycoflora such as Fusarium solani, Aspergillus niger, Aspergillus nidulens, Penicillium sp., Trichoderma harzianum, Alternaria solani, Alternaria alternata, Curvolaria lunata., Stachybotryis chartarum, Acremonium sp., Rhizoctonia solani, Chaetomium globosum, Cladosporium cladoporoides and Torula allii were isolated from the seeds.

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Cordeiro Dias, Vanessa. « Keratitis X Acremonium : A Case Report and Literature Review ». Open Access Journal of Microbiology & ; Biotechnology 6, n^o 1 (2021) : 1–4. http://dx.doi.org/10.23880/oajmb-16000187.

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Purpose: Describe an unusual development of fungal keratitis caused by Acremonium sp in six patients who underwent cataract surgery at an ophthalmology service in Brazil, as well as to report the origin of these infections. Methods: Swabs from the affected corneas were collected to perform culture for bacteria and fungi. These materials were sown in Blood agar (Difco/ USA), Macconkey agar (Difco/USA) and Thioglycolate broth (Difco/USA) for bacterial research and Sabouraud agar (Difco/ USA) for fungi research. A microbiological study was carried out to analyze surgical instruments, the environment and other materials used in the surgeries. Results: Case reports occurred with six patients, all aged over 71 and 85 years, who underwent a surgical procedure for cataract correction by an Ophthalmology service. After surgery, these patients presented loss of unilateral visual capacity, with the formation of a white mass on the cornea. Swabs from the affected corneas were collected to perform culture for bacteria and fungi, in specific culture media. The bacterial cultures showed negative results. Fungal cultures revealed the presence of Acremonium spp. Conclusions: It is likely that Acremonium spores found in the wardrobe were deposited on all the sterile material stored there. At the time of cataract surgeries, this material was unpacked and fungal structures became detached and found in the surgical field of these patients' eyes a gateway. Thus, cleaning and sanitizing measures for surfaces must be implemented and monitored, especially in critical areas such as in hospital areas, in order to avoid damage to patients' health

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RAHAYU, GAYUH. « Fragrance Formation in Aquilaria spp. Shoot Culture Induced by Acremonium sp. » Microbiology Indonesia 4, n^o 2 (août 2010) : 55–59. http://dx.doi.org/10.5454/mi.4.2.2.

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An, Z. Q., M. R. Siegel, W. Hollin, H. F. Tsai, D. Schmidt et C. L. Schardl. « Relationships among non-Acremonium sp. fungal endophytes in five grass species. » Applied and Environmental Microbiology 59, n^o 5 (1993) : 1540–48. http://dx.doi.org/10.1128/aem.59.5.1540-1548.1993.

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Jang, Jae-Hyuk, Kaneo Kanoh, Kyoko Adachi et Yoshikazu Shizuri. « New Dihydrobenzofuran Derivative, Awajanoran, from Marine-derived Acremonium sp. AWA16-1 ». Journal of Antibiotics 59, n^o 7 (juillet 2006) : 428–31. http://dx.doi.org/10.1038/ja.2006.60.

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TOKI, S., K. ANDO, M. YOSHIDA et Y. MATSUDA. « ChemInform Abstract : PS-990, a Novel Neuritogenic Compound from Acremonium sp. » ChemInform 26, n^o 20 (18 août 2010) : no. http://dx.doi.org/10.1002/chin.199520218.

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Bunyapaiboonszi, Taridaporn, Pornrapee Vongvilai, Patchanee Auncharoen et Masahiko Isaka. « ChemInform Abstract : Cyclohexadepsipeptides from the Filamentous Fungus Acremonium sp. BCC 2629. » ChemInform 43, n^o 40 (7 septembre 2012) : no. http://dx.doi.org/10.1002/chin.201240212.

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Lowen, Rosalind, et D. L. Hawksworth. « Nectriella Santessonii, A New Lichenicolous Pyrenomycete With an Acremonium Anamorph ». Lichenologist 18, n^o 4 (octobre 1986) : 321–28. http://dx.doi.org/10.1017/s0024282986000518.

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AbstractNectriella santessonii sp. nov. (Hypocreales) on Anaptychia runcinata (With.) Laundon, is introduced for a species that previously has been confused with N. tincta (Fuckel) R. Sant. The two species are distinguished by several fundamental characters. The growth of single ascospores in pure culture has proved the connection between the new species and an Acremonium anamorph.

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Posangi, Jimmy, et Robert A. Bara. « ANALISIS AKTIVITAS DARI JAMUR ENDOFIT YANG TERDAPAT DALAM TUMBUHAN BAKAU Avicennia marina DI TASIK RIA MINAHASA ». JURNAL PESISIR DAN LAUT TROPIS 2, n^o 1 (22 juillet 2014) : 30. http://dx.doi.org/10.35800/jplt.2.1.2014.7345.

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Endofit dapat diartikan sebagai mikroba yang hidup berkoloni dalam jaringan internal tumbuhan tanpa menyebabkan efek yang merugikan secara langsung pada tumbuhan tersebut. Organisme endofitik memiliki potensi yang sangat besar untuk dieksploitasi dan menghasilkan produk alami baru yang bermanfaat di bidang kedokteran, pertanian, dan industri. Pada sisi yang lain kebutuhan terhadap obat-obatan baru yang membantu umat manusia melawan pelbagai penyakit tidak pernah berhenti, hal ini disebabkan adanya resistensi bakteri, infeksi virus, insidensi infeksi jamur, berbagai jenis tumor, infeksi parasit dan protozoa, di dalam populasi dunia sekarang ini sebagai akibat ketidakmampuan kita untuk mengatasi tidak hanya problematika kesehatan. Indonesia sebagai daerah tropis dengan keanekaragaman hayati yang cukup besar, di lain pihak, perlawanan endofit di ekosistem daerah tropis melawan organisme patogen dan predator cukup besar, sumber daya yang terbatas dan tekanan seleksi alam sangat tinggi. Hal ini menimbulkan kemungkinan besar bahwa endofit di daerah tropis seperti di negara kita merupakan sumber struktur senyawa baru dengan aktivitas biologis yang menarik untuk dikembangkan sebagai bahan obat baru. Penelitian ini merupakan penelitian untuk mencari kandidat obat-obatan baru yang difokuskan pada kandidat bahan obat yang memiliki potensi antibakteri dan antikanker. Tumbuhan bakau Avicennia marina diambil dari Pantai Tasik Ria. Jamur endofit diisolasi hingga diperoleh 2 isolat galur murni Aspergillus sp. dan Acremonium sp. Kedua isolat kemudian diuji aktivitasnya terhadap bakteri patogen Staphylococcus aureus dan Escherichia coli dengan menggunakan metode ko-kultivasi. Acremonium sp. memiliki aktivitas antibakteri yang lebih kuat dibandingkan dengan jamur Aspergillus sp. terhadap bakteri S. aureus, sedangkan Aspergillus sp. menunjukkan aktivitas antibakteri yang tinggi terhadap bakteri E. coli.

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Samek, T., D. Novotný et L. Jankovský. « Infection of wintering pupae of horse-chestnut leafminer Cameraria ohridella Deschka et Dimić. by Verticillium lecanii(Zimmerman)Viégas ». Journal of Forest Science 52, No. 3 (9 janvier 2012) : 136–40. http://dx.doi.org/10.17221/4495-jfs.

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The population dynamics of the horse-chestnut leafminer Cameraria ohridella Deschka et Dimić. was investigated in 1997–2000. The mortality of wintering pupae and the rate of fungal infections were also examined. The mortality of the horse-chestnut leafminer was nearly 40% at the end of spring. The spectrum of fungi on examined dead pupae was as follows: Verticillium lecanii (Zimmerman) Viégas, Cladosporium herbarum (Persoon: Fries) Link, Cladosporium cladosporioides (Fresen.) de Vries, Alternaria alternata (Fr.) Keissler, Acremonium strictum W. Gams, Rhizopus stolonifer (Ehrenberg: Fries) Lind., Arthrinium phaeospermum (Corda) Ellis and Acremonium sp. 1. Verticillium lecanii was the only identified fungus with an entomophagous status. The fungus is, however, a well documented entomopathogen of Homoptera, particularly of aphids, scale insects and whiteflies in tropical and subtropical regions.

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Кopilov, E. P., et G. V. Tsekhmister. « THE INFLUENCE OF ANTAGONIST MOLD TRICHODERMA VIRIDE 017 ON PRODUCTIVITY OF CUCUMBER PLANTS ». Agriciltural microbiology 27 (6 juillet 2018) : 74–79. http://dx.doi.org/10.35868/1997-3004.27.74-79.

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Representatives of the genus Acremonium can cause diseases of plants of the familyCucurbitaceae, causing damage to agriculture. Application of Acremonium sp. 502 in the soil (creation ofan artificial infectious background – AIB) reduces the weight of the root system of plants by an averageof 13% and reduces the harvest of cucumbers by 41% compared with control. Inoculation of seeds withTriсhoderma viride 017 contributes to limiting the spread of acremiosis, the biological efficiency of thestrain is 61%. This is due to the death of seedlings of plants. The inoculation of seeds with T. viride 017provided for the formation of a more powerful root system and increased harvest by 34% (15.4 t/ha)compared with the variant containing the AIB. The present strain is a promising bioagent of a microbialpreparation for the protection of cucumber plants from acremiosis.

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Baral, Bikash, et Jyoti Maharjan. « In-vitroculture of Ophiocordyceps sinensis (Yarsagumba) and their associated endophytic fungi of Nepal Himalaya ». Scientific World 10, n^o 10 (20 septembre 2012) : 38–42. http://dx.doi.org/10.3126/sw.v10i10.6860.

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An array of Ophiocordyceps sinensis and its associated endophytic fungi residing in the high Nepalese meadows were isolated and studied for their association and symbiotic effectiveness with the host plant. Fungi are noted to be quite common in nature and some of them have been shown to have adverse effects against insects, nematodes and plant pathogens. Out of the few isolates, different types of associated fungi with Ophiocordyceps sinensis were screened viz. Acremonium strictum, Altenaria solani, Aspergillus flavus, Trichoderma virens, Colletotrichum gloeosporiode, Curvularia lunata, Thielaviopsis sp. and Verticillium sp. The growth rate of the Ophiocordyceps sinensis was found to be very slow as compared to other associated fungi with the diameter of only 1 cm in 2 weeks interval. Fast growing endophytic fungi was found to be Acremonium strictum followed by Altenaria solani. However, the maintenance of the pure culture of the Ophiocordyceps fungi is rather difficult and was soon covered up with other associated fungi. Besides, it was rather difficult to sporulate the O. sinensis in the laboratory conditions despite using specific medias. Scientific World, Vol. 10, No. 10, July 2012 p38-42 DOI: http://dx.doi.org/10.3126/sw.v10i10.6860

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Duc, Pham Minh, Shinpei Wada, Osamu Kurata et Kishio Hatai. « In vitro and In vivo Efficacy of Antifungal Agents against Acremonium sp. » Fish Pathology 45, n^o 3 (2010) : 109–14. http://dx.doi.org/10.3147/jsfp.45.109.

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HE, HAIYIN, RAMUNAS BIGELIS, ERIC H. SOLUM, MICHAEL GREENSTEIN et GUY T. CARTER. « Acremonidins, New Polyketide-derived Antibiotics Produced by Acremonium sp., LL-Cyan 416 ». Journal of Antibiotics 56, n^o 11 (2003) : 923–30. http://dx.doi.org/10.7164/antibiotics.56.923.

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Strobel, Gary A., Richard Torczynski et Arthur Bollon. « Acremonium sp.—a leucinostatin A producing endophyte of European yew (Taxus baccata) ». Plant Science 128, n^o 1 (septembre 1997) : 97–108. http://dx.doi.org/10.1016/s0168-9452(97)00131-3.

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Mase, Tamio, Yuko Matsumiya, Shigeharu Mori et Akira Matsuura. « Purification and characterization of a novel glucoamylase from Acremonium sp. YT-78 ». Journal of Fermentation and Bioengineering 81, n^o 4 (janvier 1996) : 347–50. http://dx.doi.org/10.1016/0922-338x(96)80589-7.

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Liu, Chunli, Yasuhiko Matsushita, Kosuke Shimizu, Koichi Makimura et Keiji Hasumi. « Activation of prothrombin by two subtilisin-like serine proteases from Acremonium sp. » Biochemical and Biophysical Research Communications 358, n^o 1 (juin 2007) : 356–62. http://dx.doi.org/10.1016/j.bbrc.2007.04.133.

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