first report of powdery mildew of rosa persica caused by leveillula taurica from iran
نویسندگان
چکیده
during the study of powdery mildew related to erysiphaceae family from abardeh region in mashhad (khorasan-e-razavi province), one species of rose (rosa persica michx.ex juss, summer 2006) with symptoms of powdery mildew was collected. the symptoms observed with the naked eye including the dense cottony shape mycelia infected the leaf surfaces as well as some parts of the stem. mycelia were dense, amphigenous, conidia with two types, primary conidia lanceolate, and secondary conidia ellipsoid to cylindric, 15-11*48-35 µm, chasmothecia with mycelioid appendages, and asci numerous, 67-90*30-40 µm, with 2-spores, 11-20*30-39µm (fig 1). according to a monograph of the erysiphales (braun,u.1987.a monograph of the erysiphales) the fungus was identified as leveillula taurica (lev) arnaud. based on the literature, this is the first record of the genus leveillula on rosa from iran.
منابع مشابه
Loss of Function in Mlo Orthologs Reduces Susceptibility of Pepper and Tomato to Powdery Mildew Disease Caused by Leveillula taurica
Powdery mildew disease caused by Leveillula taurica is a serious fungal threat to greenhouse tomato and pepper production. In contrast to most powdery mildew species which are epiphytic, L. taurica is an endophytic fungus colonizing the mesophyll tissues of the leaf. In barley, Arabidopsis, tomato and pea, the correct functioning of specific homologues of the plant Mlo gene family has been foun...
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عنوان ژورنال:
بیماریهای گیاهیجلد ۴۷، شماره ۳، صفحات ۳۰۹-۳۱۰
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