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Akhmad Rizali
Jurusan Agroekoteknologi Fakultas Pertanian Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Public Health Social Sciences Other

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Identification of Rhizospheric Bacterial Diversity in Mangrove Ecosystems in Tanah Laut Regency Nisrina Ramadhani; Guruh Mayka Putra; Akhmad Rizali
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
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.v26i2.11879

Abstract

Mangrove ecosystem is rich in rhizosphere bacteria that support the nutrient cycle and environmental balance. This study aims to identify the diversity of rhizosphere bacteria from mangrove soils in Tanah Laut Regency, South Kalimantan. Samples were taken from three types of mangrove density tight, medium, and rare, at depths of 0-30 cm and 30-60 cm. Tiered dilution to level 10-8, dilution level 10-5 to 10-8 are inoculated on NA media and purified. The purification results obtained a total of 29 isolats, in the dense mangrove type there were 14 isolats, medium mangroves 8 isolats, and rare mangroves 7 isolats. Morphological analysis showed macroscopic variation with round, entire, undulate, and irregular colony margins. There are white, yellow, beige, and orange colors. Elevation consists of flat, raised, to convex. The size of the colony is small to moderate. Microscopic analysis based on the results of gram staining there are groups with positive and negatif grams, in the form of coccus cells, bacillus, and coccobacillus. Growth assays on pH 3, 5, 7, and 9 indicated optimal growth at pH 7, with strong inhibition at pH 3. These results confirm that there is a high level of diversity of mangrove rhizosphere bacteria.
Co-Authors Abdullah Abdullah Akbar Anis Wahdi Anita Agustina Antar Sofyan Danang Biyatmoko Eko Suhartono Ellya, Hikma Fachrianto Fachrianto Fakhrur Razie Filomena Matilda Firman Firman Guruh Mayka Putra Inggrit Kartika Celiandra Jumar Jumar M. Hafiz Ansari Marchel Alfaro Sefanya Maulida Jum'ati Asmi Maya Septiani Merry Awalia Mokhamad Sholeh Muhammad Alfian Muhammad Hidayat Muhammad Imam Nugraha Muhammad Irpan Mulyawan, Ronny Munanto Munanto Nardo Pardede Naritha Yolanda Nisrina Ramadhani Noor Khamidah Noor Laili Aziza Noorkomala Sari Nurlaila Riza Adrianoor Saputra Salamiah Salamiah Sari, Noorkomala Sari, Nukhak Nufita Siska Putri Utami Sitti Waahidaturrahmah Suparto, Hairu Taufik Hidayat Untung Santoso Wahdah, Rabiatul Wenny Wulandani