Differential Responses of Erysiphe polygoni Conidia to Living and Non-living Substrata |
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| Authors: | Dr U P Singh Dr H B Singh |
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| Institution: | Department of Mycology and Plant Pathology Banaras Hindu University, Varanasi-221005, India |
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| Abstract: | Conidial germination and appressorium formation of Erysiphe polygoni on living and non-living substrata have been studied. Among living hosts, peelings from bulbs and leaves of Allium sativum and Allium cepa, or from stems of Azadirachta indica and rhizomes of Curcuma longa supported good germination. Zingiber officinale rhizome peelings inhibited germination. Germination and appressorium formation were maximum on the host (Pisum sativum) as compared to some other leguminous hosts. Little morphological variation was noticed among appressoria developed on various substrata, although they differed in size. Conidial germination was enhanced in leaf extract of pea. |
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