Jan 03, 2020 0 comment

Synergetic Role of Endophytic Bacteria in Promoting Plant Growth and Exhibiting Antimicrobial Activities

Bassam Oudh Al Johny

Department of Biological Science, Faculty of Science, King Abdulaziz University, P, O, Box 80203, Jeddah 21589, Kingdom of Saudi Arabia

Corresponding author email: boaljohny@kau.edu.sa


Received: 17/10/2019

Accepted: 27/11/2019

ABSTRACT:Endophytic bacteria are plant associated bacteria living inside the plant tissues symbiotically with damaging the plant tissues. The endophytic bacteria play very important role in plant growth and development by adding variety of metabolites such as phytohormones, antimicrobial compound and other nutrients. In the present study, endophytic bacterium was isolated from Calotropis plant and was identified as Bacillus sp. IU103 through 16-sDNA sequencing. The IU103 was analyzed for indole-3-acetic acid through spectrophotometer. Application of IU103 showed that inoculation significantly improved plant growth attributes e.g., root and shoot length, biomass and chlorophyll contents. In addition, IU103 showed antibacterial and antifungal activities. All these characteristics revealed that IU103 has shown some plant growth promoting characteristic and can be used as plant growth promoting bacteria in agriculture.

KEYWORDS:Endophytic bacteria, Indole-3-acetic acid, antibacterial activity, antifungal activity