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|標題:||Formation of highly branched hyphae by Colletotrichum acutatum within the fruit cuticles of Capsicum spp||作者:||Liao, C.Y.
|關鍵字:||anthracnose;epidermal cell;hot pepper;infection process;pathogenicity;red-pepper fruits;monilinia-fructicola;neurospora-crassa;infection;gloeosporioides;anthracnose;gene;fungus;green;ultrastructure||Project:||Plant Pathology||期刊/報告no：:||Plant Pathology, Volume 61, Issue 2, Page(s) 262-270.||摘要:||
This study showed that Colletotrichum acutatum penetrates the cuticle layer of Capsicum spp. fruits by forming a previously uncharacterized structure from appressoria. This unusual structure was localized in the cuticle layer. The structure, formed within 24 h post-inoculation (hpi), was a highly branched, well-differentiated hypha which penetrated the epidermal cell at 72 hpi. The novel structure, with abnormally thick walls (about 250 nm), often formed multiple branches in the affected chilli pepper. This dendroid structure, probably required for penetration, was formed exclusively in the cuticle layer of chilli pepper fruits and was not found when C.similar to acutatum was inoculated onto pepper petals, mango leaves, or fruits of tomato and aubergine. Colletotrichum acutatum produced similar dendroid structures within resistant chilli pepper fruits, but eventually these structures turned dark brown and no further infection in the epidermal cells occurred, implicating the presence of inhibitors of the formation and development of the dendroid penetration structure in the resistant line.
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