Two novel genes induced by hard-surface contact of Colletotrichum gloeosporioides conidia.

ABSTRACT: Germinating conidia of many phytopathogenic fungi must differentiate into an infection structure called the appressorium in order to penetrate into their hosts. This differentiation is known to require contact with a hard surface. However, the molecular basis for this requirement is not known. Induction of this differentiation in the avocado pathogen, Colletotrichum gloeosporioides, by chemical signals such as the host's surface wax or the fruit-ripening hormone, ethylene, requires contact of the conidia with a hard surface for about 2 h. To study molecular events triggered by hard-surface contact, we isolated several genes expressed during the early stage of hard-surface treatment by a differential-display method. The genes that encode Colletotrichum hard-surface induced proteins are desi

SUBMITTER: Kim YK 

PROVIDER: S-EPMC111342 | biostudies-literature | 2000 Sep

REPOSITORIES: biostudies-literature