Screening Methods for Resistant Cucumber Cultivars against Cucumber Scab Caused by Cladosporium cucumerinum Using Cucumber Fruits and Seedlings
نویسندگان
چکیده
منابع مشابه
Indoleacetaldehyde in Cucumber Seedlings 1
The presence of indoleacetaldehyde in cucumber (Cucumis sativus L.) cotyledons was demonstrated by thin layer chromatographic RF values in three solvent systems, by the formation and hydrolysis of a bisuulfte adduct, and by chemical reduction to indoleethanol and oxidation to indoleacetic acid. Bioasys indicated a minimum indoleacetaldebyde content in etiolated cotyledons of 0.7 lg per kg fresh...
متن کاملGenetic Mapping of the Scab Resistance Gene in Cucumber
Scab, caused by Cladosporium cucumerinum Ell. et Arthur, is a prevalent disease of cucumber (Cucumis sativus L.) worldwide. Scab can cause serious losses for cucumber production, especially in protected culture such as high tunnel production. Resistance to cucumber scab is dominant and is controlled by a single gene, Ccu. Breeding for resistant cultivars is the most efficient way to control the...
متن کاملIn vitro auxin binding to cellular membranes of cucumber fruits.
Specific binding of 1-naphthaleneacetic acid (NAA) to crude membrane preparations from cucumber (Cucumis sativus L.) was demonstrated. This in vitro binding had a pH optimum of 3.75 and an equilibrium dissociation constant of 10 to 20 micromolar with 1250 picomoles binding sites per gram fresh weight. The NAA-binding sites were pronase sensitive. The supernatant from the fruit partially inhibit...
متن کاملInvolvement of polyamines in the chilling tolerance of cucumber cultivars.
The possible involvement of polyamines (PAs) in the chilling tolerance of cucumber (Cucumis sativus L. cv Jinchun No. 3 and cv Suyo) was investigated. Plants with the first expanded leaves were exposed to 3 degrees C or 15 degrees C in the dark for 24 h (chilling), and then transferred to 28 degrees C/22 degrees C under a 12-h photoperiod for another 24 h (rewarming). Chilling-tolerant cv Jinch...
متن کاملIsolation of Indole-3-ethanol Oxidase from Cucumber Seedlings.
Previous work in this laboratory has shown that cucumber (Cucumis sativus L.) seedlings contain large amounts, relative to other indolic compounds, of extractable indole-3-ethanol (IEt); tracer studies have established that IEt is metabolized to IAA. We have now succeeded in isolating an enzyme from these seedlings which catalyzes the oxidation of IEt to indole-3-acetaldehyde (IAAld). The ident...
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ژورنال
عنوان ژورنال: Research in Plant Disease
سال: 2016
ISSN: 1598-2262
DOI: 10.5423/rpd.2016.22.1.18