Bacterial antagonists against Ganoderma lucidum the incitant of root rot of Indian Mesquite


Indian arid regions recently witnessed large scale mortality in the Indian mesquite {Prosopis cineraria Druce}, locally known as Khejri tree, due to root rot caused by Ganoderma lucidum. Use of biological control agents offers an attractive alternative to manage Ganoderma induced diseases in Khejri tree, without any negative impact on the environment. Therefore, efforts were made to isolate antagonistic bacterial isolates from infected trees of P. cineraria. Several soil samples were analysed and two bacterial isolates: strains AZAC-1and AZ-11were selected as potential antagonists against G.lucidum from arid soils. Taxonomic identity of the two strains was ascertained using 16S rRNA in EzBioCloud. The strains showed over 99.7% similarity and were identified as Streptomyces sp.strain AZAC-1 (MK459414) and Bacillus sp.strain AZ-11(MH304296).

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Authors are grateful to SERB–DST, New Delhi, Government of India, for providing financial support under Core Research Grant. We acknowledge the Department of Biotechnology (DBT) for funding National Centre for Microbial Resource (NCMR) wide grant letter no. BT/COORD.II/01/03/2016.

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Mawar, R., Ram, L., Sharma, D. et al. Bacterial antagonists against Ganoderma lucidum the incitant of root rot of Indian Mesquite. Indian Phytopathology (2021).

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  • Ganoderma lucidum
  • Streptomyces sp.
  • Bacillus sp.
  • Prosopis cineraria
  • 16S rRNA gene
  • Antagonists