Isolation of Bacillus wudalianchiensis strain BD 1.4 from peanut soil in Binh Dinh Province, producing IAA (Indole Acetic Acid) under the high temperature

Abstract

Peanuts are a food and oil crop with high economic and nutritional value, providing a stable source of income for the Binh Dinh people. However, the hot weather and rising temperature affect the productivity and quality of peanuts. Therefore, research and development of a biological product that can promote the growth of peanuts is a critical issue. In the present study, from 08 peanut soil samples collected in Binh Dinh Province, 24 bacterial strains were isolated. In particular, bacterial strain BD 1.4 showed the highest heat resistance and IAA biosynthesis with a 71.21 ug/ml content. Based on 16S - rRNA sequence analysis results, bacterial strain BD 1.4 was identified as Bacillus wudalianchiensis. The bacterial strain B. wudalianchiensis BD 1.4 has the potential for the production of biological products to promote plant growth and development under rising temperatures due to climate change.