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Biocontrol potential of two novel grapevine associated Bacillus strains for management of anthracnose disease caused by Colletotrichum gloeosporioides.

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Title Biocontrol potential of two novel grapevine associated Bacillus strains for management of anthracnose disease caused by Colletotrichum gloeosporioides.
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Creator Indu S. Sawant, Pallavi N. Wadkar, Yogita R. Rajguru, Nileema H. Mhaske, Varsha P. Salunkhe, S. D. Sawant and Anuradha Upadhyay
 
Subject Vitis vinifera, biological control, grape anthracnose, Bacillus subtilis, Bacillus Amyloliquefaciens, Bacillus licheniformis
 
Description Not Available
A study was conducted to identify bacterial antagonists for biological control of anthracnose which is one of the economically important diseases of grapes. In India, it is caused by Colletotrichum gloeosporioides. Two hundred and ninety-three bacteria were isolated from the grape ecosystem of 43 spatially distant vineyards in peninsular India. Of these, 25 bacteria substantially inhibited the radial growth of C. gloeosporioides in in vitro studies and 18 bacteria significantly reduced infections in vivo. Of these 18 bacteria, 5 and 3 bacteria also significantly reduced percent disease index (PDI) of downy and powdery mildew diseases, respectively. These bacteria were labelled as strains, DR-38, DR-39, TL-171, DRo-198, TS-204, TS-205, and DR-219, and were identified as Bacillus species based on morphological and molecular characterisation. Aqueous suspensions of all these strains applied as foliar sprays at 1×10 to the power of 8 cfu/ml on field grown vines significantly lowered the PDI and the AUDPC (area under disease progress curve) of anthracnose when compared with the untreated control, except DRo-198. Strains TS-204 and TL-171 recorded lower PDIs and AUDPC when compared with the other five strains, and TS-204 could effectively suppress ripe rot of berries, too, in vivo. Strains TS-204 and TL-171 are identified for biocontrol of anthracnose in grapes.
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Date 2017-05-30T07:14:29Z
2017-05-30T07:14:29Z
2016-04-01
 
Type Research Paper
 
Identifier Indu S. Sawant, Pallavi N. Wadkar, Yogita R. Rajguru, Nileema H. Mhaske, Varsha P. Salunkhe, S. D. Sawant and Anuradha Upadhyay. Biocontrol potential of two novel grapevine associated Bacillus strains for management of anthracnose disease caused by Colletotrichum gloeosporioides. Biocontrol Science and Technology, 26(7): 964-979.
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http://krishi.icar.gov.in/jspui/handle/123456789/4210
 
Language English
 
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