Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/46149
標題: Formation of highly branched hyphae by Colletotrichum acutatum within the fruit cuticles of Capsicum spp
作者: C.-Y.Liao
M.-Y.Chen
Y.-K.Chen
K.-C.Kuo
K.-R.Chung
M.-H.Lee
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
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.
URI: http://hdl.handle.net/11455/46149
ISSN: 0032-0862
Appears in Collections:植物病理學系

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