Title: | Antagonistic potential of rhizobacterial isolates against fungal pathogens causing rhizome rot in turmeric |
Address: | "Microbial Ecology Laboratory, Centre for Advanced Studies in Botany, Department of Botany, North-Eastern Hill University, Shillong, Meghalaya, 793022, India. ferzyceroza@gmail.com. Microbial Ecology Laboratory, Centre for Advanced Studies in Botany, Department of Botany, North-Eastern Hill University, Shillong, Meghalaya, 793022, India" |
DOI: | 10.1007/s00203-023-03565-1 |
ISSN/ISBN: | 1432-072X (Electronic) 0302-8933 (Linking) |
Abstract: | "The study aims to select potent bacterial antagonists to be used as biocontrol agents against rhizome rot disease in turmeric (Curcuma longa L.). A total of 48 bacterial isolates were isolated from the rhizosphere of turmeric. These isolates were screened for their in vitro antagonism against Fusarium solani FS-01 and Pythium aphanidermatum (ITCC 7908). Production of volatile organic compounds and chitinase activity were also performed. Among the tested isolates, two bacterial isolates (IJ2 and IJ10) showed the highest inhibitory activity against these fungal pathogens. GC/MS analysis of the crude extract produced by Pseudomonas sp. IJ2 and B. subtilis IJ10 was found to contain many bioactive compounds with antifungal and antimicrobial activities. The rhizome treatment with these isolates exhibited the lowest percent disease severity with high biocontrol efficacy against the tested pathogens. These isolates with promising antagonistic potential, therefore, can be used as biocontrol agents against rhizome rot in turmeric" |
Keywords: | *Rhizome/microbiology *Curcuma/microbiology Plant Diseases/prevention & control/microbiology Antifungal Agents/pharmacology Bacteria Antagonism Bacillus subtilis Curcuma longa L.Gc/ms Pseudomonas sp.; |
Notes: | "MedlineKharshandi, Ferry Kayang, Highland eng (332490, Ref.No:20/12/2015(ii)EU-V))/University Grants Commission, India/ Germany 2023/05/07 Arch Microbiol. 2023 May 7; 205(6):221. doi: 10.1007/s00203-023-03565-1" |