Host-specific AB-toxin production by germinating spores of Alternaria brassicicola is induced by a host-derived oligosaccharide

Autor:	Hiromitsu Nakajima, Hajime Akamatsu, Motoichiro Kodama, Toshinari Kawada, Kumiko Oka, Hiroshi Otani
Rok vydání:	2005
Předmět:	Alternaria brassicicola biology Toxin fungi Plant Science Phytotoxin medicine.disease_cause biology.organism_classification Microbiology Spore Germination AB toxin Genetics medicine Spore germination Black spot
Zdroj:	Physiological and Molecular Plant Pathology. 66:12-19
ISSN:	0885-5765
DOI:	10.1016/j.pmpp.2005.03.005
Popis:	The phytopathogenic fungus Alternaria brassicicola is the causal agent of black spot disease of Brassica plants and produces a host-specific protein toxin named AB-toxin. AB-toxin is released from spores germinating only on host leaves. In this study, we found a factor for inducing AB-toxin production that is released from host leaves after spore germination has begun. GC and GC–MS analyses of the compound purified by gel filtration chromatography demonstrated that it is an oligosaccharide of 1.3 kDa. This is the first evidence that host-specific toxin production by germinating spores of a fungal pathogen is induced by recognition of host-derived factors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::71ee536757dc5e9cd16f4ace14951286 https://doi.org/10.1016/j.pmpp.2005.03.005 Zobrazit plný text záznamu Full Text from ScienceDirect