Antagonism of Three Trichoderma Species Against Botrytis fabae and B. cinerea, the Causal Agents of Chocolate Spot of Faba Bean (Vicia faba L.) In Algeria
Year: 2012
Type: article
Abstract: : Three species of Trichoderma (T. harzianum, T. viride and T. longibrachiatum) were compared in vitro against two isolates of Botrytis fabae and Botrytis cinerea isolated from faba bean leaves showing symptoms of chocolate spot disease grown at western Algeria. The ability of each strain of Trichoderma to reduce the growth and sporulation of B. fabae and B. cinerea was measured. Two techniques were used for this purpose: the direct confrontation of culture medium and confrontation remote action of volatile substances. Direct confrontation of the colonies of T. viride with those of the pathogen results in an inhibition and growth arrest at a distance of the parasite. Sporulation of Botrytis sp colonies along the zone of inhibition is greatly reduced. In the case of T. harzianum and T. longibrachiatum, no inhibition zone was observed and their mycelium quickly invade the colony of the tested pathogen. Key words: Botrytis fabae Botrytis cinerea Trichoderma spp Antagonism Growth inhibition
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2185601925