Trichoderma viride Laccase Plays a Crucial Role in Defense Mechanism against Antagonistic Organisms.

ABSTRACT: Fungal laccases are involved in a variety of physiological functions such as delignification, morphogenesis, and parasitism. In addition to these functions, we suggest that fungal laccases are involved in defense mechanisms. When the laccase secreting Trichoderma viride was grown in the presence of a range of microorganisms including bacteria and fungi, laccase secretion was enhanced in response to antagonistic organisms alone. In addition, growth of antagonistic microbes was restricted by the secreting fungi. Besides, our study for the first time shows the inability of the secreting fungi (T. viride) to compete with antagonistic organism when laccase activity is inhibited, further emphasizing its involvement in rendering a survival advantage to the secreting organism. When laccase inhibit

SUBMITTER: Divya L 

PROVIDER: S-EPMC4868839 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature