Phosphate solubilizing bacteria: Assessment of their effect on growth promotion and phosphorous uptake of mung bean (Vigna radiata [L.] R. Wilczek)
Year: 2013
Type: article
Abstract: The aim of this work was to isolate phosphate solubilizing bacteria (PSB) and assess their effect on the growth of mung bean (Vigna radiata [L.] R. Wilczek) plants.Of 31 isolated PSB strains, two efficient strains, identified as Pantoea agglomerans (PSB-1) and Burkholderia anthina (PSB-2), were employed in further studies.Maximum P solubilization (720.75 µg mL -1 ) was recorded from the cultures co-inoculated with P. agglomerans and B. anthina.A strong positive correlation was found between pH and soluble P concentration in the medium, as well as between titratable acidity and P solubilization.Both strains under greenhouse conditions remarkably enhanced shoot and root length, shoot and root dry matter, and P uptake of mung bean plants.Growth was found to be further improved by adding tricalcium phosphate (TCP) with PSB inoculation.Co-inoculation of both PSB strains and adding TCP exhibited the highest growth performances and P uptake of mung bean plants; this implies that their applicability as a promising alternative to minimize the P problem in agricultural soils.
Authors: Buddhi Charana Walpola, Min-Ho Yoon
Institution: Chungnam National University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W1996125004