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All Journal Jurnal Biologi Tropis
Nurul Rizqiyah
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Isolation of endophytic bacteria from the roots of Gliricidia sepium and their ability as IAA-producing bacteria and phosphate solubilizers Nurul Rizqiyah; Lalu Zulkifli; Agus Ramdani
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3790

Abstract

This study aimed to isolate endophytic bacteria from the roots of the gamal plant and to test its ability to solubilize anorganic phosphate dan to produce IAA (indol acetic acid). The steps in this study were the isolation of endophytic bacteria from the roots of the gamal plant taken from Woja District, Dompu Regency, the IAA test, and the phosphate solubility test using the colorimetric method. And then carried out the characterization of cells, colonies and biochemical properties of isolates. In this study, 6 isolates of endophytic bacteria from the roots of gamal plants were obtained which can dissolve phosphate, of which two isolates, namely ATG1 and ATG4 with phosphate solubility indices ranging from 3 and 4. These two isolates were also capable of producing IAA, with concentrations 16.48 and 17.72 ppm, respectively. Most of the isolates were Gram positive bacteria and were in the form of bacilli. The endophytic isolates obtained above are isolates that have the potential to be candidates for components of the biofertilizer formulation consortium in the future.
Co-Authors Agus Ramdani Lalu Zulkifli