Characterization and Invitro screening of plant growth promoting bacteria for probable drought tolerance in rice [manuscript]
| dc.contributor.author | Abegain P. Ador Dionisio | |
| dc.date.accessioned | 2026-04-23T00:38:51Z | |
| dc.date.available | 2026-04-23T00:38:51Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | This study was conducted to characterize the plant growth promoting bacteria (PGPB) for ACC deaminase activity, starch hydrolysis, IAA production, phosphate solubilization and siderophore production. It also aimed to screen bacterial isolates for tolerance to probable drough stress induced by polyethylene glycol (PEG) and to identify the selected isolates using biochemical analysis. Among 50 existing PGPB isolates, 14 were positive for ACC deaminase activity, 30 hydrolyzed starch, two solubilize phosphate, while 14 produced siderophores. In terms of intensity of IAA production, nine were high, 13 were medium and 28 were low. Eighteen out of 50 existing bacterial isolates were selected based on their growth promoting capability and further tested for probable drought tolerance of rice condition using 15% and 25% polyethylene glycol (PEG). Among these existing PGPB isolates, Paenibacillus elgii (AP 1-1) was found to have the capability to produce ACC deaminase and siderophone which have high impact on growth of the plant. The isolate was also found to have the ability to produce exoenzymes that hydrolyzed starch. Hence, this isolate can be considered to have growth promoting effect for probable drought tolerance in rice. | |
| dc.identifier.uri | http://granarium.clsu.edu.ph/handle/123456789/1086 | |
| dc.language.iso | en_US | |
| dc.relation.supervisor | FLORIDA C. GARCIA | |
| dc.title | Characterization and Invitro screening of plant growth promoting bacteria for probable drought tolerance in rice [manuscript] | |
| dc.type | Thesis |