Work

ACC Deaminase-Containing Rhizobacteria from Rhizosphere of Zygophyllum coccineum Alleviate Salt Stress Impact on Wheat (Triticum aestivum L.)

Year: 2020

Type: article

Abstract: Plant growth-promoting bacteria are present in the rhizosphere, a soil zone around plant roots.An important mechanism of plant growth enhancement is the production of 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase.Three ACC deaminase-producing bacterial strains were isolated from the rhizosphere of the halophytic plant Zygophyllum coccineum growing in Al-Uqair, Al-Ahsa, Saudi Arabia.The strains were identified as Bacillus filamentosus, Janibacter indicus, and Brevibacterium casei based on 16S rRNA sequence, and their taxonomic position was determined.Furthermore, the strains exhibited catalase and indoleacetic acid production and phosphate solubilization.The highest ACC deaminase activity was observed in B. filamentosus (~ 449 nmole α-ketobutyrate mg -1 h -1 ), followed by J. indicus and B. casei (~ 66 nmole α-ketobutyrate mg -1 h -1 ).Inoculation of wheat grains with each strain significantly enhanced growth.Z. coccineum rhizosphere harbors growth-promoting bacteria and ameliorated the negative effects of salt stress on wheat plants and may be used as an eco-friendly biofertilizer.

Source: Scientific Journal of King Faisal University Basic and Applied Sciences

DOI: 10.37575/b/agr/1988

Author: Ashraf Khalifa

Institutions: Beni-Suef University, King Faisal University

Language: English

Topic: Plant-Microbe Interactions and Immunity

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

Funder: King Faisal University