Littérature scientifique sur le sujet « Olive tree diseases »
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Articles de revues sur le sujet "Olive tree diseases"
1
Rashed, Khaled. « Phytocontent and Biological effects of Olea europaea : A Review ». Plantae Scientia 5, no 2 (9 avril 2022) : 36–44. http://dx.doi.org/10.32439/ps.v5i2.36-44.
Texte intégralRésumé :
Olive tree (Olea europaea L., Oleaceae) leaves have been widely used in traditional herbal medicine to prevent and treat various diseases especially in Mediterranean countries. They contain several potentially bioactive com-pounds that may have hypoglycemic and hypolipidemic properties. Olea europaea is commonly known as Zaitoon. The ancient Egyptians, Greeks, Romans and other Mediterranean nations cultivated olives for its edible fruits and to obtain oil from them. Leaves of the tree became important when olive leaf extract was reported to be potent in reducing incidence of degenerative diseases, particularly coronary heart disease (CHD) and cancers of the breast, skin, and colon. Olive leaves have the highest antioxidant power among the different parts of the olive tree. While in olive fruit, phenols (e.g. TYR) and terpenoid hydrocarbon (squalene) are the major components found in the oil. Much research has been carried out on the medical applications of olive. The choice of the plant was based on the good previous biological study of Olea europaea. Interest to choose this plant, may have been due to the widespread use of olive species medicinally, food industry and cosmetics.
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BEYAZ, Abdullah, et Mücahit Taha ÖZKAYA. « Canopy analysis and thermographic abnormalities determination possibilities of olive trees by using data mining algorithms ». Notulae Botanicae Horti Agrobotanici Cluj-Napoca 49, no 1 (21 janvier 2021) : 12139. http://dx.doi.org/10.15835/nbha49112139.
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In order to take the appropriate tree protection measures, it is crucial to determine and track abnormalities that may occur in olive trees in time to time for many reasons. Abnormalities start in different sections of the trees, depending on the environmental effects of the olive tree, with a specific impact like fungal diseases, drought, etc. after a certain age especially in non-resistant species. Protection steps may be taken when abnormalities are apparent or predictable in certain olive trees, using some external indicators. However, when abnormalities formed within trees cannot be identified externally, there is a sudden breakdown and overthrow of valuable properties, such as monument trees. In the literature, various devices and methods are explained to classify these defects in different trees. By the way, in this research, a non-destructive inspection method (thermography) was clarified and used to assess anomalies in old olive trees without damage in the interior. According to the results of average thermal data, 60, 400, 600 year-old olive trees, 60-40, 70-30 and 80-20 learning-prediction data rates decision tree and random forest results according to normal and abnormal thermal difference, the thermal range was found as 35.95 ℃ at 60 year-old tree, also it was found as 36.25 ℃ at 400 year-old tree and it was found as 38.25 ℃ at 600 year-old tree.
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Mennane, Zakaria, Zahira Tabet, Btissam El kharraz, Touria Aabid, Touil Souhaila, Adnan Emrani, Jamal Abrini et Noureddine Elmtili. « Ethnobotanical Study of Fig Tree (Ficus Carica L.) And Olive (Olea Europaea L.) From Tetouan Province In Morocco And Study Their Antimicrobial Activity ». E3S Web of Conferences 319 (2021) : 01091. http://dx.doi.org/10.1051/e3sconf/202131901091.
Texte intégralRésumé :
This study we have conducted an ethnobotanical survey and antimicrobial activity in Tetouan province to identify the use of the famous plant species in traditional medicine : fig tree and Olive and follow-up of antimicrobial activity during three stages for green, pink and black olives and mixing activity of olive and fig extracts. 80 questionnaire sheets were done during April-June 2019, and the method of diffusion was used for the antimicrobial activity.Bacteria and yeasts were used: Staphylococcus aureus, Pseudomonas aeruginosa, and Klebsiella pneumoniae, E.coli and Candida albicans. The results revealed that 32% of farmers use olive oil for the initial treatment of respiratory diseases, and 22% use it for digestive system problems and 13% use it as a treatment of the nervous system.However, fig tree is used against insect bites, as an inhibitor of the growth of certain cancerous tumors, diabetes and certain viral infections. The ethanol extracts showed good inhibitory effects against most strains of bacteria and yeast. Also for the majority of strains tested, it was found that in December (black olive), activity is stronger, and that the mixture of ethanol extracts with ethanol extracts of fig tree it strengthened them.
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Hanani, Arafat, Franco Valentini, Simona M. Sanzani, Franco Santoro, Serena A. Minutillo, Marilita Gallo, Giuseppe Cavallo et al. « Community Analysis of Culturable Sapwood Endophytes from Apulian Olive Varieties with Different Susceptibility to Xylella fastidiosa ». Agronomy 12, no 1 (22 décembre 2021) : 9. http://dx.doi.org/10.3390/agronomy12010009.
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Endophytes are symptomless fungal and/or bacterial microorganisms found in almost all living plant species. The symbiotic association with their host plants by colonizing the internal tissues has endowed them as a valuable tool to suppress diseases, stimulate growth, and promote stress resistance. In this context, the study of culturable endophytes residing the sapwood of Apulian olives might be a promising control strategy for xylem colonizing pathogens as Xylella fastidiosa. To date, olive sapwood cultivable endophytes are still under exploration; therefore, this work pursues a study of cultivable endophytes occurrence variation in the sapwood of different olive varieties under the effect of seasonality, geographical coordinates, and X. fastidiosa infection status. Our study confirms the stability of sapwood endophytic culturable communities in the resistant olive variety and presents the seasonal and geographical fluctuation of olive trees’ sapwood endophytes. It also describes the diversity and occurrence frequency of fungal and bacterial genera, and finally retrieves some of the sapwood-inhabiting fungal and bacterial isolates, known as biocontrol agents of plant pathogens. Thus, the potential role of these bacterial and fungal isolates in conferring olive tree protection against X. fastidiosa should be further investigated.
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Calzada, David, Lucía Cremades-Jimeno, María López-Ramos et Blanca Cárdaba. « Peptide Allergen Immunotherapy : A New Perspective in Olive-Pollen Allergy ». Pharmaceutics 13, no 7 (2 juillet 2021) : 1007. http://dx.doi.org/10.3390/pharmaceutics13071007.
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Allergic diseases are highly prevalent disorders, mainly in industrialized countries where they constitute a high global health problem. Allergy is defined as an immune response “shifted toward a type 2 inflammation” induced by the interaction between the antigen (allergen) and IgE antibodies bound to mast cells and basophils that induce the release of inflammatory mediators that cause the clinical symptoms. Currently, allergen-specific immunotherapy (AIT) is the only treatment able to change the course of these diseases, modifying the type 2 inflammatory response by an allergenic tolerance, where the implication of T regulatory (Treg) cells is considered essential. The pollen of the olive tree is one of the most prevalent causes of respiratory allergic diseases in Mediterranean countries, inducing mainly nasal and conjunctival symptoms, although, in areas with a high antigenic load, olive-tree pollen may cause asthma exacerbation. Classically, olive-pollen allergy treatment has been based on specific immunotherapy using whole-olive pollen extracts. Despite extracts standardization, the effectiveness of this strategy varies widely, therefore there is a need for more effective AIT approaches. One of the most attractive is the use of synthetic peptides representing the B- or T-cell epitopes of the main allergens. This review summarizes experimental evidence of several T-cell epitopes derived from the Ole e 1 sequence to modulate the response to olive pollen in vitro, associated with several possible mechanisms that these peptides could be inducing, showing their usefulness as a safe preventive tool for these complex diseases.
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Grubić Kezele, Tanja, et Božena Ćurko-Cofek. « Neuroprotective Panel of Olive Polyphenols : Mechanisms of Action, Anti-Demyelination, and Anti-Stroke Properties ». Nutrients 14, no 21 (28 octobre 2022) : 4533. http://dx.doi.org/10.3390/nu14214533.
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Neurological diseases such as stroke and multiple sclerosis are associated with high morbidity and mortality, long-term disability, and social and economic burden. Therefore, they represent a major challenge for medical treatment. Numerous evidences support the beneficial effects of polyphenols from olive trees, which can alleviate or even prevent demyelination, neurodegeneration, cerebrovascular diseases, and stroke. Polyphenols from olive oils, especially extra virgin olive oil, olive leaves, olive leaf extract, and from other olive tree derivatives, alleviate inflammation and oxidative stress, two major factors in demyelination. In addition, they reduce the risk of stroke due to their multiple anti-stroke effects, such as anti-atherosclerotic, antihypertensive, antioxidant, anti-inflammatory, hypocholesterolemic, hypoglycemic, and anti-thrombotic effects. In addition, olive polyphenols have beneficial effects on the plasma lipid profiles and insulin sensitivity in obese individuals. This review provides an updated version of the beneficial properties and mechanisms of action of olive polyphenols against demyelination in the prevention/mitigation of multiple sclerosis, the most common non-traumatic neurological cause of impairment in younger adults, and against cerebral insult with increasing incidence, that has already reached epidemic proportions.
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SALIS, Constantinos, Ioannis E. PAPADAKIS et Marianna HAGIDIMITRIOU. « Identification and quantification of phenolic compounds in fresh and processed table olives of cv. ‘Kalamata’ ». Notulae Botanicae Horti Agrobotanici Cluj-Napoca 49, no 2 (24 juin 2021) : 12394. http://dx.doi.org/10.15835/nbha49212394.
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Mediterranean diet is almost synonymous to the healthy lifestyle and diet nowadays. Some of the major components of the diet are the products of the olive tree, fruits and olive oil, which are classified as medical foods, due to their nutraceutical benefits and their protective properties against cancer, cardiovascular diseases, age-related diseases, neurodegenerative disorders and other diseases. The key contributors to these properties are the phenolic compounds such as hydroxytyrosol, tyrosol and oleuropein. Table olives are being processed with several methods in order to reduce the bitterness of the olive fruit and the impact of the processing on phenolic compounds has not been studied extensively. In the present study, changes in the concentration of the most important phenolic compounds were quantified in fresh, Greek-style and Spanish-style processed olive fruits of cv. ‘Kalamata’, using two different analytical methods for identification and quantification: high-performance liquid chromatography diode array detector (HPLC-DAD) and ultrahigh-performance liquid chromatography tandem mass spectrometry (LC-(ESI)-MS/MS). The phenolic compounds that were identified and quantified were hydroxytyrosol, tyrosol, verbascocide, rutin, oleuropein and luteolin. Both processing methods used altered the phenolic compounds concentration in ‘Kalamata’ olive fruits compared to untreated fruits. In both analytical methods, a statistically significant increase in verbascoside and hydroxytyrosol concentration and a statistically significant decrease in rutin concentration was observed in both, Greek-style and Spanish-style, processed olive fruits.
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Salis, Constantinos, Eleni Papakonstantinou, Katerina Pierouli, Athanasios Mitsis, Lia Basdeki, Vasileios Megalooikonomou, Dimitrios Vlachakis et Marianna Hagidimitriou. « A genomic data mining pipeline for 15 species of the genus Olea ». EMBnet.journal 24 (22 mai 2019) : e922. http://dx.doi.org/10.14806/ej.24.0.922.
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In the big data era, conventional bioinformatics seems to fail in managing the full extent of the available genomic information. The current study is focused on olive tree species and the collection and analysis of genetic and genomic data, which are fragmented in various depositories. Extra virgin olive oil is classified as a medical food, due to nutraceutical benefits and its protective properties against cancer, cardiovascular diseases, age-related diseases, neurodegenerative disorders, and many other diseases. Extensive studies have reported the benefits of olive oil on human health. However, available data at the nucleotide sequence level are highly unstructured. Towards this aim, we describe an in-silico approach that combines methods from data mining and machine learning pipelines to ontology classification and semantic annotation. Fusing and analysing all available olive tree data is a step of uttermost importance in classifying and characterising the various cultivars, towards a comprehensive approach under the context of food safety and public health.
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Bizos, Georgios, Efimia M. Papatheodorou, Theocharis Chatzistathis, Nikoletta Ntalli, Vassilis G. Aschonitis et Nikolaos Monokrousos. « The Role of Microbial Inoculants on Plant Protection, Growth Stimulation, and Crop Productivity of the Olive Tree (Olea europea L.) ». Plants 9, no 6 (12 juin 2020) : 743. http://dx.doi.org/10.3390/plants9060743.
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The olive tree (Olea europaea L.) is an emblematic, long-living fruit tree species of profound economic and environmental importance. This study is a literature review of articles published during the last 10 years about the role of beneficial microbes [Arbuscular Mycorrhizal Fungi (AMF), Plant Growth Promoting Rhizobacteria (PGPR), Plant Growth Promoting Fungi (PGPF), and Endophytes] on olive tree plant growth and productivity, pathogen control, and alleviation from abiotic stress. The majority of the studies examined the AMF effect using mostly Rhizophagus irregularis and Glomus mosseae species. These AMF species stimulate the root growth improving the resistance of olive plants to environmental and transplantation stresses. Among the PGPR, the nitrogen-fixing bacteria Azospirillum sp. and potassium- and phosphorous-solubilizing Bacillus sp. species were studied extensively. These PGPR species were combined with proper cultural practices and improved considerably olive plant’s growth. The endophytic bacterial species Pseudomonas fluorescens and Bacillus sp., as well as the fungal species Trichoderma sp. were identified as the most effective biocontrol agents against olive tree diseases (e.g., Verticillium wilt, root rot, and anthracnose).
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Gambino, Caterina M., Giulia Accardi, Anna Aiello, Giuseppina Candore, Giovanni Dara-Guccione, Mario Mirisola, Antonio Procopio, Giusi Taormina et Calogero Caruso. « Effect of Extra Virgin Olive Oil and Table Olives on the ImmuneInflammatory Responses : Potential Clinical Applications ». Endocrine, Metabolic & ; Immune Disorders - Drug Targets 18, no 1 (12 décembre 2017) : 14–22. http://dx.doi.org/10.2174/1871530317666171114113822.
Texte intégralRésumé :
Background and Objective: Extra virgin olive oil (EVOO) is the common element among the Mediterranean countries. It can be considered a nutraceutical and functional food, thanks to its bioactive compounds. It can act and modulate different processes linked to ageing and age-related diseases related to a common chronic low grade inflammation. Depending on the cultivar, the growth conditions, the period of harvesting, the productive process and time of product storage, EVOO could contain different amount of vegetal components. Of course, the same is for table olives. Methods: The aim of our review is to summarize the effects of EVOO and table olives on the immunemediated inflammatory response, focusing our attention on human studies. Results: Our report highlights the effect of specific molecules obtained from EVOO on the modulation of specific cytokines and anti-oxidants suggesting the importance of the daily consumption of both EVOO and table olives in the context of a Mediterranean dietary pattern. In addition, the different action on immune-inflammatory biomarkers, are depending on the olive tree cultivar. Conclusion: Thanks to their bioactive compounds, EVOO and table olive can be considered as nutraceutical and functional foods. The beneficial effects analysed in this review will help to understand the potential application of specific olive components as therapeutic adjuvant, supplements or drugs.
Thèses sur le sujet "Olive tree diseases"
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ANSELMI, ANDREA. « Un sistema di monitoraggio e di supporto alle decisioni per la gestione sostenibile dell'oliveto ». Doctoral thesis, Università Cattolica del Sacro Cuore, 2023. http://hdl.handle.net/10280/135601.
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L'obiettivo della mia ricerca è stato quello di sviluppare modelli previsionali delle principali parassiti dell’olivo.
Sempre nel settore della difesa antiparassitaria di questa coltura, sono emerse inoltre pesanti criticità legate alla pratica applicazione dei trattamenti fitosanitari, oltre che per le grandi dimensioni delle piante e la difficile accessibilità che caratterizzano moltissimi oliveti, anche per la carente regolazione funzionale delle irroratrici e per il poco diffuso loro controllo strumentale. Pertanto è stato sviluppato anche un sistema di supporto alla taratura degli atomizzatori.The objective of my research was to develop forecasting models of the main olive tree pests. Also in the area of pest control for this crop, serious criticalities emerged in connection with the practical application of phytosanitary treatments, not only due to the large size of the trees and the difficulties of accessibility that characterize many olive groves but also due to the poor functional regulation of sprayers and their little widespread instrumental control. Therefore, a system to support the calibration of sprayers was also developed.
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Gomes, Teresa Maria da Cruz. « Role of olive tree phyllosphere microorganisms in the biological control of olive leaf spot and olive knot ». Doctoral thesis, 2018. http://hdl.handle.net/1822/59025.
Texte intégralRésumé :
Tese de Doutoramento em Ciências (Especialidade em Biologia)The olive leaf spot (OLS) and the olive knot (OK) diseases are key constraints to olive production, due to their high incidence and related losses. However, none of the available control measures are effective against both diseases. This work aims to characterize the phyllosphere fungal communities, which reside in and on leaf/twig tissues of olive tree, and to understand their role in conferring host protection against these two diseases. Fungal communities of cultivars displaying differences on disease susceptibility were assess by culture-dependent approach and compared either among asymptomatic and symptomatic plant tissues or among different levels of disease incidence. The isolation of fungal communities was performed in autumn and spring. The relationship between foliar composition on fungi, secondary metabolites and host susceptibility was also evaluated. Phyllosphere fungal community revealed to be rich and abundant, comprising species belonging mainly to Ascomycota phyla and Cladosporiaceae family. Endophytic and epiphytic communities were distinct and affected primarily by season. In addition, climatic factors and the presence of disease were important in shaping epiphytes, whereas plant organ and genotype (at cultivar level) were the major drivers of endophytes. The interplay between the pathogen, the plant and its indigenous microbiota, also seemed to be critical for the establishment of fungal communities in the olive phyllosphere. The level of disease incidence was linked to host cultivar and to fungal and metabolite (phenolic and volatile compounds) composition of their leaves. Thus, it is possible that cultivar susceptibility might be in part related with the composition of fungal and metabolites. Some key fungal taxa and metabolites were identified to play an important role in conferring cultivar susceptibility/tolerance to OLS disease. Similarly, several fungal taxa were found to be specific to either asymptomatic or symptomatic plant tissues, suggesting their competitive or cooperative activity with the pathogen. Further investigations are still required to identify the functional role of these fungi and metabolites in conferring host plant protection to OLS and OK diseases.
O olho-de-pavão e a tuberculose são importantes ameaças à produção olivícola, devido à sua incidência e perdas relacionadas. Não existe nenhum método de luta que se tenha mostrado eficaz contra estas duas doenças. Este trabalho tem como objetivo caracterizar a comunidade fúngica da filosfera da oliveira, que reside interna e externamente nas suas folhas/ramos, de forma a compreender o seu papel na proteção da planta contra estas duas doenças. A comunidade fúngica foi avaliada em cultivares que apresentam diferenças de suscetibilidade às doenças, recorrendo a métodos culturais, e comparada entre material assintomático e sintomático ou entre diferentes níveis de incidência de doença. O isolamento de fungos foi realizado durante o outono e a primavera. Foi ainda avaliada a relação entre a composição foliar de fungos e de metabolitos secundários, e a suscetibilidade da planta às referidas doenças. A comunidade fúngica da filosfera mostrou ser rica e abundante, incluindo espécies pertencentes maioritariamente ao filo Ascomycota e à família Cladosporiaceae. A composição da comunidade endofítica foi distinta da epifítica, e mostrou ser fortemente influenciada pela estação do ano. Vários fatores climáticos e a presença de doença foram ainda cruciais na estruturação dos epifíticos, enquanto o órgão e o genótipo da planta (cultivar) influenciaram também a composição de endófitos. A interação entre o patogénico, a planta e a sua flora microbiana nativa, também revelou ser crítica para o estabelecimento das comunidades fúngicas na filosfera da oliveira. O nível de incidência de doença mostrou estar relacionado com a cultivar, e com a composição de fungos e metabolitos (fenóis e voláteis) das suas folhas. Este resultado sugere que a suscetibilidade da cultivar possa estar relacionada com a sua composição em fungos e metabolitos, tendo, alguns deles, mostrado ter um papel importante na suscetibilidade/ tolerância da cultivar ao olho-depavão. Algumas espécies fúngicas mostraram também estar fortemente associados quer a material sintomático ou assintomático, sugerindo que possam estabelecer relações de competição ou cooperação com o patogénico. Estudos adicionais são ainda necessárias para identificar a função destes fungos e metabolitos na proteção da oliveira contra o olho-de-pavão e a tuberculose da oliveira.
This research was partially supported by FEDER funds through COMPETE (Programa Operacional Factores de Competitividade) and by national funds through FCT (Fundação para a Ciência e a Tecnologia) in the framework of the project EXCL/AGR-PRO/0591/2012. This work was supported by FCT under the project UID/MULTI/04046/2013. T. Gomes thanks FCT, POPH-QREN and FSE for PhD SFRH/BD/98127/2013 grant; and also the COST Action FA1405 for a short-term scientific mission (STSM) grant.
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Mina, João Diogo Calado Martins. « Endo- and epiphytic bacteria from olive tree phyllosphere with biocontrol abilities against olive knot ». Doctoral thesis, 2020. http://hdl.handle.net/1822/76667.
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Tese de Doutoramento em Ciências (Especialidade em Biologia)A tuberculose da oliveira, causada pela bactéria Pseudomonas savastanoi pv. savastanoi (Pss), é uma importante doença do olival ainda sem tratamento conhecido. Esta doença afeta a parte aérea das oliveiras e caracteriza-se por um crescimento anormal dos tecidos, principalmente no tronco e ramos. Neste trabalho foi caracterizada a comunidade bacteriana que habita a filosfera da oliveira, de modo a elucidar o seu possível papel na defesa da planta contra a tuberculose da oliveira. Uma abordagem dependente de cultivo foi usada para descrever as populações da superfície (epífitos) e do interior (endófitos) de folhas, caules e nódulos de duas cultivares com diferentes suscetibilidades a esta doença. Para alguns dos isolados obtidos foi testada a sua capacidade antagonista contra Pss em ensaios in vitro, tendo os mecanismos associados a este antagonismo sido também avaliados. A eficácia do isolado mais promissor, Bacillus amyloliquefaciens P41, na redução do desenvolvimento da doença e na melhoria do fitness da planta foi avaliada através de ensaios in planta. No geral, a comunidade bacteriana da filosfera da oliveira inclui membros pertencentes principalmente a Proteobacteria, em particular a Gammaproteobacteria. A composição bacteriana foi principalmente afetada pela cultivar do hospedeiro e em menor grau pelo órgão, que teve um maior impacto nos epífitos. Adicionalmente, cada cultivar/órgão foi aparentemente seletiva através de OTUs bacterianos específicos. A tuberculose da oliveira revelou ter também um impacto na estrutura da comunidade bacteriana, mas com diferentes efeitos, dependentes da cultivar e do habitat na planta hospedeira. Na verdade, o seu efeito foi mais notório na cultivar mais suscetível à doença e nos endófitos. Um total de 27 isolados inibiram significativamente o crescimento de Pss, tendo os isolados com uma maior capacidade antagonista sido isolados da cultivar suscetível. Esta capacidade antagonista deveu-se provavelmente à produção de compostos voláteis, enzimas líticas e sideróforos. B. amyloliquefaciens P41 reduziu a severidade da doença em até 43.7% e a população de Pss em até 26.8%, e simultaneamente melhorou o fitness da planta hospedeira, podendo ser possivelmente considerado um candidato promissor no controlo da tuberculose da oliveira. Estudos adicionais são necessários para identificar o papel funcional destas bactérias e dos mecanismos envolvidos na proteção da planta hospedeira contra a tuberculose da oliveira.
Olive knot (OK), caused by Pseudomonas savastanoi pv. savastanoi (Pss), is an important olive orchard disease with still no treatment known. This disease affects the aerial part of the olive trees and is characterized by overgrowth formations (knots) mainly on trunk and branches. In this work was characterized the bacterial community inhabiting the olive tree phyllosphere, in order to elucidate its possible role on plant defense against OK disease. A culture-dependent approach was used to describe the bacterial populations in (epiphytes) and on (endophytes) leaves, twigs and knots of two cultivars with different susceptibility to OK disease. Some of the isolates obtained were screened for their antagonistic effect against Pss in in vitro assays, and their mechanisms were also evaluated. The efficacy of the most promising isolate, Bacillus amyloliquefaciens P41, in reducing OK development and improving plant fitness was evaluated through in planta assays. Overall, the bacterial community of olive tree phyllosphere comprised members belonging mainly to Proteobacteria, in particular Gammaproteobacteria. Bacterial composition was primarily impact by host cultivar, and, to a lesser extent, by plant organ which had a more control over epiphytes. In addition, each cultivar/organ apparently was selective towards specific bacterial OTUs. OK disease showed also to have an impact on the structure of bacterial communities, but with variable effects depending on the host cultivar and plant habitat. Indeed, its effect was most notorious in OK-susceptible cultivar and within endophytes. A total of 27 isolates inhibited significantly Pss growth, being the ones with the greatest antagonistic activity from the tissues surface of OK-susceptible cultivar. Such ability was potentially due to the production of volatile compounds, lytic enzymes and siderophores. B. amyloliquefacients P41 reduced OK disease’s severity up to 43.7% and Pss population size up to 26.8% and simultaneously increased plant fitness, suggesting to be a promising candidate for controlling OK disease. More research are still required to identify the functional role of these bacteria and the mechanisms involved in conferring host plant protection to OK disease.
This research was partially supported by FEDER funds through COMPETE (Programa Operacional Factores de Competitividade), national funds through FCT (Fundacao para a Ciencia e a Tecnologia) and by Horizon 2020, the European Union's Framework Programme for Research and Innovation, within the project PRIMA/0002/2018 INTOMED - Innovative tools to combat crop pests in the Mediterranean, and PTDC/A5P-PLA/31133/2017 MicOlives - Exploiting plant induced resistance by beneficial fungi as a new sustainable approach to olive crop protection. D. Mina thanks FCT, POPH-QREN and FSE for SFRH-BD-105341/2014 grant and also the COST Action FA1405 for two short-term scientific mission (51-5M) grant.
Livres sur le sujet "Olive tree diseases"
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Fabbri, Andrea, Giorgio Bartolini, Maurizio Lambardi et Stan Kailis. Olive Propagation Manual. CSIRO Publishing, 2004. http://dx.doi.org/10.1071/9780643091016.
Texte intégralRésumé :
This practical manual is an authoritative guide to olive propagation, providing extended information on seed germination, rooting of cuttings, grafting and micropropagation. The authors describe each topic in detail and discuss the relative advantages and disadvantages of each procedure.
The Olive Propagation Manual has been developed to take into account the future demand for olive oil, which is expected to increase to three million tonnes annually over the next 10 years. Such volumes will require active farming programs and olive trees for new orchards and the replacement of olive trees in existing orchards. As the olive industry moves from traditional manual methods to mechanised operations, planting stock will need to be developed to meet future challenges. Varietal selection will need to be directed to clones that are early bearing, disease resistant, able to be mechanically harvested, and produce quality fruit and oil. Each of these issues are addressed throughout this book.
The Olive Propagation Manual explores historical perspectives, traditional methods and state-of-the-art olive propagation including theoretical explanations and all practical aspects.
Chapitres de livres sur le sujet "Olive tree diseases"
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Berardo, Cecilia, Iulia Martina Bulai, Ezio Venturino, Paula Baptista et Teresa Gomes. « Modeling the Endophytic Fungus Epicoccum nigrum Action to Fight the “Olive Knot” Disease Caused by Pseudomonas savastanoi pv. savastanoi (Psv) Bacteria in Olea europaea L. Trees ». Dans Trends in Biomathematics : Modeling, Optimization and Computational Problems, 189–207. Cham : Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91092-5_13.
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« The Tree Through the Year ». Dans The Chemical Story of Olive Oil : From Grove to Table, 48–79. The Royal Society of Chemistry, 2017. http://dx.doi.org/10.1039/9781782628569-00048.
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How does the olive tree mature and how does the fruit ripen each season? What do farmers provide for the nutritional needs of their groves and what are the seasonal diseases and pests of concern? Oleuropein, a bitter compound in the trees and berries, is synthesized at this time to protect the tree and young fruit from predators.
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Kallel, Imen Fourati, Mohamed Kallel, Mahmoud Ghorbel et Mohamed Ali Triki. « Smart Farming ». Dans Handbook of Research on AI Methods and Applications in Computer Engineering, 316–38. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-6937-8.ch015.
Texte intégralRésumé :
Olive trees diseases harm the quality and the quantity of the harvest seriously, which causes considerable economic losses for farmers, and more importantly affects the national economy in its entirety. The aim of this investigation is to work out a recognizing pattern method, based on the analysis of the texture and supervised classification. It essentially detects and classifies olive tree diseases in order to provide the farmers with tools helping them not only to get informed of their trees' diseases, but also to know how to treat them effectively.
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Rahimianfar, Fatemeh. « The Effect of Olive Leaf Extract on Systolic and Diastolic Blood Pressure in Adults : A Systemic Review and Meta-Analysis ». Dans Olive Cultivation [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.102769.
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Hypertension (HTN) is one of the most common disorders and increases the risk of cardiovascular diseases (CVD), which are one of the main causes of death in the world. The Mediterranean diet has the efficacy to modulate CVD risk factors such as HTN, mainly because of olive tree products, which are the most pivotal ingredients in this diet. Among the olive tree products, olive leaf consists of many sorts of phenolic compounds and has several beneficial effects on human body, such as antioxidant, anti-atherosclerotic, anti-inflammatory and especially anti-hypertensive effects. So, we conducted a new systematic review and meta-analysis on anti-hypertensive effect of OLE in adults. The meta-analysis showed a significant reduction effect of OLE on systolic blood pressure. The anti-hypertensive effect of OLE is mainly considered due to its principal phenolic compound known as oleuropein (OL), which reduces blood pressure by a number of particular mechanisms associated with its specific chemical characteristics.
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Wang, Wei, Fuju Tai et Xiuli Hu. « Current Initiatives in Proteomics of the Olive Tree ». Dans Olives and Olive Oil in Health and Disease Prevention, 25–32. Elsevier, 2010. http://dx.doi.org/10.1016/b978-0-12-374420-3.00003-6.
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Zelasco, Samanta, Fabrizio Carbone, Luca Lombardo et Amelia Salimonti. « Olive tree genetics, genomics, and transcriptomics for the olive oil quality improvement ». Dans Olives and Olive Oil in Health and Disease Prevention, 27–49. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-819528-4.00017-1.
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Caglayan, K., F. Faggioli et M. Barba. « CHAPTER 53 : Viruses, Phytoplasmas, and Diseases of Unknown Etiology of Olive Trees ». Dans Virus and Virus-Like Diseases of Pome and Stone Fruits, 289–97. The American Phytopathological Society, 2011. http://dx.doi.org/10.1094/9780890545010.053.
Texte intégralActes de conférences sur le sujet "Olive tree diseases"
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Lino, Paolo, Irene Mazzilli, Gianmario Mirabile et Nikolai Svishchev. « UAV Adaptive Trajectory for Detection of Xylella Fastidiosa Disease in Olive Trees ». Dans 2022 20th International Conference on Mechatronics - Mechatronika (ME). IEEE, 2022. http://dx.doi.org/10.1109/me54704.2022.9983131.
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Mazzilli, Irene, Gianmario Mirabile, Paolo Lino, Guido Maione, Alexey V. Rybakov, Nikolai Svishchev, Ileana Blanco, Luigi De Bellis et Andrea Luvisi. « UAV Inspection of Olive Trees for the Detection of Xylella Fastidiosa Disease Using Neural Networks ». Dans 2021 17th International Workshop on Cellular Nanoscale Networks and their Applications (CNNA). IEEE, 2021. http://dx.doi.org/10.1109/cnna49188.2021.9610752.
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Howland, Howard C. « An Economic Analysis of Screening for Amblyopia : Influences of Prevalence, Test Cost, Test Quality, Value of Detection, Sensitivity and Specificity ». Dans Vision Science and its Applications. Washington, D.C. : Optica Publishing Group, 1995. http://dx.doi.org/10.1364/vsia.1995.suc4.
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When is it profitable to screen for amblyopia? In order to answer this question, we must place some values on the various outcomes of screening. What is the value of finding an amblyope at an early age? What is the cost of a false positive, a false negative, or a true negative? Because it is not easy to provide answers to these questions, the method of this paper is to investigate a range of assumptions, the possible values in this pay-off matrix. These are coupled with screening tests of various quality in order to find the minimum prevalence of the disease for which it would be profitable to screen. Indeed, the prevalence of amblyopia is itself unknown, variously estimated at between 0.05 and 0.005 (Ciuffreda et al. 1991; Oliver & Nawratzki, 1971) in normal populations.