| Literature DB >> 35927385 |
Rakhi Khunjamayum1, K Tamreihao2, Roshan Singh Asem1, Yurembam Rojiv Singh1, Amanda Nongthombam1, Khuraijam Mrinalini Devi1, Thoudam Pooja Chanu1, Laishram Jaya Devi1, Saikat Mukherjee1, Debananda S Ningthoujam3.
Abstract
103 bacterial isolates obtained from 8 ethnomedicinal plants in Manipur, India were studied for antifungal and plant growth promoting (PGP) activities. Forty-six (46), out of 62 antifungal isolates, showed potent activities against R. solani. Since R. solani (RS), a sheath blight pathogen, threatens rice yields worldwide, the present study was aimed at discovering promising bioinoculants with anti-RS and PGP potential on rice. Twenty-nine (29) endophytic isolates exhibiting promising anti-RS and PGP activities were subjected to seed vigor assays on rice (var. Jatra) and 16 were found to enhance rice seedling vigour by 70% or more over the control. Four (4) strains, Streptomyces sp. (AcRz21), Alkalihalobacillus sp. (PtL11), Bacillus sp. (TgIb5), and Priestia sp. (TgIb12) with the highest vigor indices were studied for growth promotion of rice in field conditions under pathogen-challenged and pathogen-free conditions. These bioactive strains were able to significantly enhance root and shoot biomass and reduce lesion heights caused by R. solani.Entities:
Keywords: Alkalihalobacillus sp. (PtL11); Bacillus sp. (TgIb5); Ethnomedicinal plant endophytes; Rhizoctonia solani; Rice growth promotion; Streptomyces sp. (AcRz21)
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Year: 2022 PMID： 35927385 DOI： 10.1007/s00203-022-03136-w
Source DB: PubMed Journal: Arch Microbiol ISSN： 0302-8933 Impact factor: 2.667