PJB-2018-1091
ROLE OF ENDOPHYTIC FUNGI IN SUPPRESSING THE ROOT ROTTING FUNGI OF SOYBEAN
Hafiza Farhat
Abstract
Fungal endophytes are found inside the living tissues of the plants that cause no adverse effect on their host. Considerable information are now available about beneficial role of fungal endophytes on their host plants. In the present study four endophytic fungi Cephalosporium sp., Chaetomium sp, Talaromyces trachyspermus and Talaromyces assiutensis were isolated and identified from healthy plants. These endophytic fungi showed significant inhibitory activity against root rotting fungi like Fusarium solani, Rhizoctonia solani, F,oxysporum and Macrophomina phaseolina in dual culture plate assay. Culture filtrate of endophytic fungi also showed significant antifungal activity, besides their nematicidal activity against Meloidogyne javanica, root knot nematode. The application of these isolates significantly suppressed root rotting fungi of soyabean in screen house experiments. Endophytic fungi also showed positive impacts on the host plants by increasing their growth rate, improving their level of tolerances to biotic and abiotic stresses, as evident from production of higher amount of resistance markers like salicylic acid and polyphenol content with improvement of the antioxidant status of the host plant.
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