Effects of Root Exudates of Two Mangrove Species on in vitro Spore Germination and Hyphal Growth of Glomus mosseae

摘要

The present study deals with the effects of root exudates of two mangrove species viz. Bruguiera gymnorrhiza (L.) and Excoecaria agallocha L. on in vitro spore germination and hyphal growth of Glomus mosseae (Nicol. & Gerd.) Gerd. & Trappe. Root exudates of both the mangrove species showed significant inhibitory action on hyphal growth, but the inhibitory effect of E. agallocha root exudate was more than that of B. gymnorrhiza root exudate. Root exudates of these two mangrove species exerted no significant effect, stimulatory or inhibitory, on spore germination. Putative active compounds were detected in the root exudates of the plants. The two mangrove species are unlikely to be the hosts for colonization by G. mosseae .