Isolation and Physiological Characterization of PGPR from Potato Plant Rhizosphere in Medium Land of Buru Island

Publication date: 2015 Source:Procedia Food Science, Volume 3 Author(s): Henry Kesaulya , Baharuddin , Bandron Zakaria , Syatrianty A. Syaiful A total of 70 bacteria were isolated from the rhizosphere of potato cv. Hartapel that grew at an altitude of 700 m above sea level on the island of Buru-Maluku. Of these isolates, 36 isolates were capable of producing IAA, GA, Siderophore and phosphate solubilization. Among the selective isolates, isolate HB8 produced the highest amount of IAA (5.816mg l-1), while isolate HB32 produced the highest amount of GA (6.879mg l-1). Isolate HB18 had the best ability in producing salicylate type siderophore (4.214mg l-1) and isolate HB3 showed the highest phosphate solubilization (14.237mg l-1). There were three isolates (HB3, HB8 and HB31) positively produced HCN. All 36 isolate showed physiological characters which revealed the potential use for biostimulant, biofertilizer and bioprotectant against soil borne pathogens.

Source: Procedia Food Science - February 18, 2015 Category: Food Science Source Type: research