POTENTIAL OF THERMOTOLERANCE ISOLATES BACTERIA FROM THE LAND THAT AFFECTED BY MERAPI ERUPTION AS A PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR)

Ratih, Yanisworo and Peniwiratri, Lelanti (2013) POTENTIAL OF THERMOTOLERANCE ISOLATES BACTERIA FROM THE LAND THAT AFFECTED BY MERAPI ERUPTION AS A PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR). In: Proceedings International Conference on Green Agro-Industry (ICGAI), 14 Nopembr 2013, Yogyakarta.

Text 16. Ratih, Peniwiratri ICGAI 2013.pdf Download (3MB)

Abstract

Merapi volcano erupted on October-November 2010 and destroyed any vegetation on the land affected by the eruption. A month after erupted, some plants: bananas, bamboos, and grass starting to growth. There was an association between plant root and microorganisms. The present study was conducted to obtain a thermo tolerance isolates bacteria and to describe the potential of the isolates as a PGPR. The bacterial were isolated from the rhizosphere of the start growing plants. The viability isolates were tested gradually on incubation temperature from 550C to 1000C for 24 hours. The isolates that viable on 1000C designated as a thermo tolerance bacteria. The parameter which were analysis were IAA production, nitrogenase activity, phosphate solubilization, and pH. A total of 9 thermo tolerance bacteria isolates had been isolated. According to the sequences of their 16S-rDNA, they were identified as a Bacillus sp. (5 isolates), Paenibacillus sp. (2 isolates), and Arthrobacter sp. (2 isolates). All of the thermo tolerance isolates were able to produce IAA. The production of IAA ranges from 6.5 mg.L-1(in Bacillus B1e) to 75 mg L-1 (Bacillus B1b), whereas the capability of isolates to solubilizing phosphate ranges from 0.95 mg L-1 to 1.37 mg L-1. All of the isolate had relative low capability to fixed N2.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Thermo tolerance, bacteria, Merapi-eruption, PGPR
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Faculty of Medicine, Health and Life Sciences > School of Biological Sciences
Depositing User:	Dr.Ir,MSi YANISWORO RATIH
Date Deposited:	17 Apr 2023 06:16
Last Modified:	17 Apr 2023 06:18
URI:	http://eprints.upnyk.ac.id/id/eprint/34015

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