NDLI: Selection of entomopathogenic fungus for biological control of chili anthracnose disease caused by Colletotrichum spp.

Content Provider	Springer Nature Link
Author	Jaihan, Piyaot Sangdee, Kusavadee Sangdee, Aphidech
Copyright Year	2016
Abstract	The literature on the entomopathogenic fungi in the genus Cordyceps describing its use in the agricultural area as a biocontrol agent is limited. In this study, a total of 47 isolates of entomopathogenic fungi were isolated from dead cicada nymphs obtained from various locations in the northeast of Thailand. These isolates were primarily screened for antagonistic activity to inhibit the mycelial growth of one isolate of Colletotrichum gloeosporioides and one isolate of C. capsici. The screen revealed that five isolates of entomopathogenic fungi showed good inhibitory effects on the fungal mycelial growth and were chosen for further confirmation of their antagonistic effects against five isolates of C. gloeosporioides and five isolates of C. capsici by the dual culture method. After investigation, the isolate Cod-NB1302 had the best inhibitory effect. Moreover, the mycelium extract and culture filtrate of isolate Cod-NB1302 also had inhibitory effects on the mycelial growth and conidial germination of all isolates of plant pathogenic Colletotrichum spp. under in vitro conditions. Interestingly, the mycelium extract and culture filtrate effectively reduced the size of the disease lesion and disease severity on chili fruits after inoculation with the plant pathogenic fungi. However, the mycelium extract exhibited greater antifungal activity than the culture filtrate. Finally, the isolate Cod-NB1302 was identified as Ophiocordyceps sobolifera based on the sequence of three ribosomal nuclear DNA genes and two protein-coding genes. These findings suggest that the isolate Cod-NB1302 is a potential candidate, with antagonistic activity, for use as a source of antifungal agents to control anthracnose disease caused by the plant pathogenic Colletotrichum spp.
Starting Page	551
Ending Page	564
Page Count	14
File Format	PDF
ISSN	09291873
Journal	European Journal of Plant Pathology
Volume Number	146
Issue Number	3
e-ISSN	15738469
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-04-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antagonistic activity Colletotrichum spp. Entomopathogenic fungi Ophiocordyceps sobolifera Plant Pathology Plant Sciences Ecology Agriculture Life Sciences
Content Type	Text
Resource Type	Book Review
Subject	Plant Science Horticulture Agronomy and Crop Science

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