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Endophytes from maize with plant growth promotion and biocontrol activity under drought stress

  • Microbiology
  • Published:
Russian Agricultural Sciences Aims and scope

Abstract

In the present study, 39 endophytic bacteria were isolated from different crops with main focus on maize roots and seeds. Endophytes were screened for drought stress tolerance, plant growth promoting (PGP) traits and antifungal activity. Out of 39 isolates, 32 could show drought tolerance up to–1.02 matric potential (MPa) and exhibited most of the plant growth promoting traits. But, only five isolates could show antagonistic activity against plant fungal pathogens. Based on the results, 10 promising isolates namely FTR, NFTR, FMZR9, FMZR2, MZ30V92, MRC12, MRC31, MRC33, MRC41 and MRR2 were selected and identified using biochemical and 16S rDNA gene sequencing as Pseudomonas aeruginosa (strains FTR and NFTR), Pseudomonas monteilii (strain FMZR2), Pseudomonas putida (strain FMZR9), Acitenobacter brumalii (strain MZ30V92), Enterobacter asburiae (strain MRC12), Sinorhizobium meliloti (strain MRC31), Pseudomonas thivervalensis (strain MRC33), Pseudomonas fulva (strain MRC41), and Pseudomonas lini (strain MRR2). Further, at–1.02 MPa all the 10 isolates showed PGP traits, and 3 isolates (FTR, NFTR and MRC12) showed antifungal activity. Thus, indicating that drought tolerant plant growth promoting antagonistic endophytic bacteria (PGPAE) helps in plant growth and disease management under drought stress.

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  1. Department of Microbiology, Agri Biotech Foundation, PJTS Agricultural University Campus, Rajendranagar, Hyderabad, Telangana State, 500030, India

    V. Sandhya, M. Shrivastava, Sk. Z. Ali & V. Sai Shiva Krishna Prasad

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  1. V. Sandhya
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Sandhya, V., Shrivastava, M., Ali, S.Z. et al. Endophytes from maize with plant growth promotion and biocontrol activity under drought stress. Russ. Agricult. Sci. 43, 22–34 (2017). https://doi.org/10.3103/S1068367417010165

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