Bacillus spp.: potent microfactories of bacterial IAA

PeerJ
Shabana Wagi, Ambreen Ahmed

Abstract

Auxin production by bacteria is one of the most important direct mechanisms utilized by plant growth-promoting bacteria (PGPB) for the betterment of plants naturally because auxin is a plant friendly secondary metabolite synthesized naturally by bacteria, and hence improves the growth of associated plants. So, the current study focuses on bacterial synthesis of Indole-3-acetic acid (IAA) for plant growth improvement. In the current study, the PGPB were selected on the basis of their auxin production potential and their growth promoting attributes were evaluated. Indole-3-acetic acid producing potential of two selected bacterial isolates was observed by varying different growth conditions i.e., media composition, carbon sources (glucose, sucrose and lactose) and different concentrations of precursor. Influence of various physiological factors (temperature and incubation time period) on IAA production potential was also evaluated. Both the bacterial strains Bacillus cereus (So3II) and B. subtilis (Mt3b) showed variable potential for the production of bacterial IAA under different set of growth and environmental conditions. Hence, the IAA production potential of the bacterial isolates can be enhanced by affecting optimum growth co...Continue Reading

References

Oct 8, 2017·World Journal of Microbiology & Biotechnology·Oluwaseyi Samuel OlanrewajuOlubukola Oluranti Babalola
Nov 18, 2018·Applied and Environmental Microbiology·Adrien RizziPascale B Beauregard

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Citations

Nov 3, 2020·Antonie van Leeuwenhoek·Patricio A MuñozGermán F Sepúlveda-Chavera
Jul 13, 2021·Archives of Microbiology·Sadia BashirJames Francis White
Oct 27, 2021·Applied Microbiology and Biotechnology·Jorge Poveda, Fernando González-Andrés

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Datasets Mentioned

BETA
KM438011.1
KT025250.1

Software Mentioned

Automated Sequencer
MEGA7

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