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Salt-pan bacteria as potential plant growth promoters and their antagonistic activity to fungal pathogens of Capsicum annuum L.


Affiliations
1 School of Biological Sciences and Biotechnology, Goa University, Goa 403 206, India, India
2 Department of Arctic Operations, National Centre for Polar and Ocean Research, Goa 403 804, India, India
 

Chilli, an essential condiment worldwide, is generally cultivated in paddy fields and can be infected by fungal pathogens, thus hampering its yield. Due to increasing soil salinization, the efficacy of many biocontrol agents is poor in the fields. In this study, bacteria (about 196) isolated from the Goan salt pans in India were screened for their antifungal activity against Fusarium oxys­porum, Fusarium pallidoroseum, Rhizoctonia solani and Pythium aphanidermatum. Halotolerant isolates of Bacillus tequilensis, Bacillus subtilis subsp. inaquosorum, Bacillus cabrialesii, Bacillus licheniformis, Bacillus paralicheniformis and Brevibacterium antiquum could grow under a wide range of pH, temperature and NaCl concentrations, and also displayed plant growth-promoting attributes

Keywords

Antagonistic activity, chilli, fungal pathogens, plant growth promotion, salt-pan bacteria.
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  • Salt-pan bacteria as potential plant growth promoters and their antagonistic activity to fungal pathogens of Capsicum annuum L.

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Authors

M. Pawaskar
School of Biological Sciences and Biotechnology, Goa University, Goa 403 206, India, India
K. P. Krishnan
Department of Arctic Operations, National Centre for Polar and Ocean Research, Goa 403 804, India, India
S. Kerkar
School of Biological Sciences and Biotechnology, Goa University, Goa 403 206, India, India

Abstract


Chilli, an essential condiment worldwide, is generally cultivated in paddy fields and can be infected by fungal pathogens, thus hampering its yield. Due to increasing soil salinization, the efficacy of many biocontrol agents is poor in the fields. In this study, bacteria (about 196) isolated from the Goan salt pans in India were screened for their antifungal activity against Fusarium oxys­porum, Fusarium pallidoroseum, Rhizoctonia solani and Pythium aphanidermatum. Halotolerant isolates of Bacillus tequilensis, Bacillus subtilis subsp. inaquosorum, Bacillus cabrialesii, Bacillus licheniformis, Bacillus paralicheniformis and Brevibacterium antiquum could grow under a wide range of pH, temperature and NaCl concentrations, and also displayed plant growth-promoting attributes

Keywords


Antagonistic activity, chilli, fungal pathogens, plant growth promotion, salt-pan bacteria.

References





DOI: https://doi.org/10.18520/cs%2Fv123%2Fi9%2F1129-1135