Agricultural Science Digest - A Research Journal
SCOPUS
  • Year: 2017
  • Volume: 37
  • Issue: 3

Plant growth promoting traits shown by bacteria Brevibacterium frigrotolerans SMA23 Isolated from Aloe vera rhizosphere

1Department of Bio & Nanotechnology, Guru Jambeshwer University of Science & Technology, Hisar-125004, India.

Microbial Resource Technology Laboratory, Department of Microbiology, Kurukshetra University, Kurukshetra-136 119, Haryana, India.

*Corresponding author's e-mail: nayansheoran29@gmail.com

Online published on 9 October, 2017.

Abstract

Brevibacterium frigrotolerans SMA23 is a gram positive rod shaped bacteria isolated from Aloe vera rhizosphere. 16S rRNA sequencing confirmed the identity of the bacterium as Brevibacterium frigrotolerans. It was capable of growing at temperatures ranging from 10°C to 35°C, but maximum growth was observed at 30°C. It is endowed with multiple plant growth promotion attributes such as phosphate solubilization, IAA production and siderophore production, which are expressed differentially at sub-optimal temperatures. At 10°C it was found to exhibit all the plant growth promotion attributes. This bacterial isolate was able to positively influence and promote the growth and nutrient uptake parameters of wheat (HD 2967) under glasshouse conditions.

Keywords

Aloe vera, IAA, PGPR, Phosphate, Siderophore