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Diversity of endophytic bacterial community inhabiting in tropical aerobic rice under aerobic and flooded condition

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Abstract

The role and activity of bacterial endophytes remains largely unexplored and detail insight into Indian rice agro ecosystem is still little explored. In this study, we examined the diversity of endophytic bacteria in aerobic rice (variety ARB6) under aerobic and flooded field conditions. Based on 16S rRNA gene RFLP cloning sequencing, 900 clones with 144 representatives (72 aerobic and 72 flooded) revealed majority of clones affiliated to Gammaproteobacteria (64.58%), Betaproteobacteria (9.72%), Alphaproteobacteria (17.36), Firmicutes (6.26%) and Bacteroidetes (2.08). The study suggests that the aerobic rice variety harbours plant growth promoting (PGP) genera (viz. Pantoea, Enterobacter, Paenibacillus, etc). Investigations on aerobic rice under aerobic and flooded conditions revealed high richness and diversity of endophytic bacteria under aerobic condition inferring that the endophytic bacteria are beneficial for rice growth and productivity, and hence, would be helpful in designing better strategies for rice cultivation under drought or water scarce conditions.

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Acknowledgements

This work was supported by Department of Science and Technology, Ministry of Science and Technology, Government of India, New Delhi with Grant number SB/FT/LS-246/2012. The authors hereby acknowledge HE Sashidhar, Aerobic Rice Laboratory, Department of Plant Biotechnology UAS Bangalore for providing experimental plots to conduct the work. Jitendra Kesari, Institute of post harvest and food Sciences Israel is acknowledged for statistical analysis. We are also thankful to the Coordinator CAS and FIST, Department of Botany, BHU, Varanasi for providing facilities.

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  1. Pranjali Vishwakarma

    Present address: Bio-Safety Support Unit, Regional Centre of Biotechnology, Faridabad, 121001, India

Authors and Affiliations

  1. Department of Microbiology and Biotechnology, Bangalore University, Bengaluru, 560056, India

    Pranjali Vishwakarma

  2. Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India

    Suresh Kumar Dubey

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  1. Pranjali Vishwakarma
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Vishwakarma, P., Dubey, S.K. Diversity of endophytic bacterial community inhabiting in tropical aerobic rice under aerobic and flooded condition. Arch Microbiol 202, 17–29 (2020). https://doi.org/10.1007/s00203-019-01715-y

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