Aspergillus niger, a potential biocontrol agent for controlling fusarial wilt of tomato

Aspergillus niger, a potential biocontrol agent for controlling fusarial wilt of tomato

2011

E07690

Wilt disease caused by Fusarium oxysporum f.sp. lycopersici, (FOL) is considered to be the most important disease of tomato. The present study was carried out to find a potential biocontrol agent for the management of FOL. Different kind of bioagents like Trichoderma spp. (28 isolates), Aspergillus niger (one isolate), Pseudomonas spp. (10 isolates) and Bacillus spp. (13 isolates) were isolated from the rhizosphere of the crop and evaluated for their in vitro efficacy against FOL. Among them A. niger recorded 74.0% inhibition of mycelial growth of FOL followed by T. viride-Tv5 (62.4%), T. harzianum-TM (61.1%), B. subtilis-Bs-2 (31.2%) and P. fluorescence-P-3 (27.0%). Similarly, all the biocontrol agents were tested against the wilt incidence under glasshouse conditions. Among the treatments, A. niger recorded 0% wilt incidence on 30 and 45 days after inoculation, where as, the protection shown by T. viride (Tv5), T. harzianum (Th4) and P. fluorescens (P3) on 30 days after inoculation was broken down on 45th day after inoculation. From this study A. niger identified as potential biocontrol agent of FOL and further investigations on development of bioformulation and biosafety are in progress.

49(1):115-118, JOURNAL OF MYCOPATHOLOGICAL RESEARCH

Research > Published Articles