Biotechnical Preparations in Protection of Cucumber against Downy Mildew
نویسندگان
چکیده
منابع مشابه
Are grapevine stomata involved in the elicitor-induced protection against downy mildew?
Stomata, natural pores bordered by guard cells, regulate transpiration and gas exchanges between plant leaves and the atmosphere. These natural openings also constitute a way of penetration for microorganisms. In plants, the perception of potentially pathogenic microorganisms or elicitors of defense reactions induces a cascade of events, including H(2)O(2) production, that allows the activation...
متن کاملHeritability and Genetic Variance Estimates for Resistance to Downy Mildew in Cucumber Accession Ames 2354
Downy mildew (DM) of cucumber (Cucumis sativus L.), caused by Pseudoperonospora cubensis, is a devastating disease of cucurbits. resistance is available but is not sufficient to eliminate the need for fungicides to control the disease. previously, the USDA plant Introduction collection of cucumber germplasm was screened in poland and North Carolina, and Ames 2354 was identified as highly resist...
متن کاملThermal imaging of cucumber leaves affected by downy mildew and environmental conditions.
Pathogenesis of Pseudoperonospora cubensis causing downy mildew of cucumber resulted in changes in the metabolic processes within cucumber leaves including the transpiration rate. Due to the negative correlation between transpiration rate and leaf temperature, digital infrared thermography permitted a non-invasive monitoring and an indirect visualization of downy mildew development. Depending o...
متن کاملQTLs for Downy Mildew Resistance and Their Association with LRR-RLK Resistance Gene Analogs in Cucumber
Downy mildew (DM) caused by the obligate oomycete Pseudoperonospora cubensis is an important disease of cucumber and other cucurbit crops. In the United States, for more than 50 years, DM was effectively controlled in cucumber through host resistance conferred mainly by the dm-1 derived from PI 197087, which was overcome in 2004 due to the appearance of a new pathotype. Resistance sources (for ...
متن کاملElicitation of resistance and associated defense responses in Trichoderma hamatum induced protection against pearl millet downy mildew pathogen
Endophytic Trichoderma hamatum UoM 13 isolated from pearl millet roots was evaluated for its efficiency to suppress downy mildew disease. Under laboratory conditions, T. hamatum seed treatment significantly enhanced pearl millet seed germination and seedling vigor. T. hamatum seed treatment resulted in systemic and durable immunity against pearl millet downy mildew disease under greenhouse and ...
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ژورنال
عنوان ژورنال: Acta Horticulturae et Regiotecturae
سال: 2016
ISSN: 1338-5259
DOI: 10.1515/ahr-2016-0014