Item request has been placed!
×
Item request cannot be made.
×
Processing Request
EXTRACTION AND EVALUATION OF INDOLE ACETIC ACID FROM INDIGENOUS AUXIN-PRODUCING RHIZOSPHERE BACTERIA.
Item request has been placed!
×
Item request cannot be made.
×
Processing Request
- Author(s): Ahmed, A.; Hasnain, S.
- Source:
JAPS: Journal of Animal & Plant Sciences; Aug2020, Vol. 30 Issue 4, p1-13, 13p, 1 Diagram, 8 Charts, 4 Graphs
- Subject Terms:
- Additional Information
- Abstract:
Auxins are the phytohormones which play vital role in the growth and development of plants. Among the plant growth promoting rhizobacteria, some bacterial strains can synthesize auxins and help in plant growth stimulation. The present work deals with auxin production potential of the bacterial strains. Eighteen auxin-producing rhizobacteria were isolated and phylogenetically analyzed through 16S rDNA sequencing for identification. The isolated bacterial strains had shown similarity to various genera including Enterobacter, Bacillus, Halomonas, Cronobacter, Exiguobacterium, Kushneria and Arthrobacter spp. Isolates were also characterized morphologically, biochemically and physiologically. Most of the bacterial strains synthesized higher amounts of auxin during stationary phase of their growth. Bacterial auxin synthesis was monitored by varying concentrations of the precursor i.e., L-Tryptophan ranging from 200 to 1200 µgml-1. The present study revealed variation in the auxin production potential of bacteria belonging to various genera with different phases of their growth and varying amount of Tryptophan available, thus, improved our insight regarding microbial auxin synthesis with reference to their growth and phylogeny which will be helpful in better exploitation of bacterial indole acetic acid (IAA) for phyto-stimulation [ABSTRACT FROM AUTHOR]
- Abstract:
Copyright of JAPS: Journal of Animal & Plant Sciences is the property of Knowledge Bylanes and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
No Comments.