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All Journal Jurnal Biologi Tropis Bio-Lectura
Al Batati, Nadiah
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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KARAKTERISASI DAN POTENSI BAKTERI ENDOFIT AKAR KOPI (Coffea sp) SEBAGAI PENGHASIL INDOLE ACETIC ACID (IAA) Rizkiana Pratiwi, Esti; Mega Suryani, Elsa; Adi Wira Prasetya, Indra; Al Batati, Nadiah
Bio-Lectura : Jurnal Pendidikan Biologi Vol. 11 No. 1 (2024)
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/bl.v11i1.19229

Abstract

The Endophytic bacteria as a biofertilizer agent can minimize the use of chemicals from synthetic fertilizers. The aim of this research was to study the density, diversity and ability of endophytic bacteria from coffee plants that have the potential to produce IAA. Root samples were obtained from coffee plants in UB Forest (UBF), Sumberwangi, Malang. The root samples were surface sterilized and then crushed with a blender. Endophytic bacteria were isolated and tested for their potential to produce IAA. The results obtained were 18 isolates of IAA-producing bacteria. KAA6 Isolate were produced the highest concentration of IAA of 10.73 ppm at 48 hours of incubation followed by KBA3 isolate which produced 12.78 ppm of IAA at 72 hours of incubation. The potential bacteria can be further optimized to be used as an eco-friendly biofertilizer agent.
Antibacterial of Endophytic Bacteria from Papaya (Carica papaya) Seeds Againts Staphylococcus aureus and Escherichia coli Pratiwi, Esti Rizkiana; Al Batati, Nadiah; Firamadhani, Nuzzulul Anisa
Jurnal Biologi Tropis Vol. 24 No. 1b (2024): Special Issue
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.v24i1b.8018

Abstract

Endophytic bacteria were produce antibacterial compounds from various plants has been widely reported as considered efficient in overcoming resistant pathogen infections. This study aims to obtain endophytic bacteria from papaya seeds which can produce antibacterials. Papaya seeds were used to isolate endophytic bacteria, which were then examined for antibacterial activity. The dics diffusion method is used to determine the antibacterial activity's efficacy against Escherichia coli and Staphylococcus aureus. There are nine isolates of endophytic bacteria in all. According to a potency test, the nine isolates exhibit strong antibacterial activity against Escherichia coli and Staphylococcus aureus, respectively. Every isolate has the ability to effectively inhibit Staphylococcus aureus. The only isolates that could suppress Escherichia coli were CPA 5, CPA 6, and CPA 8. Based on their antibacterial activity against Escherichia coli and Staphylococcus aureus, it was determined that the endophytic bacterial isolates from papaya seed have the capacity to generate antibacterials.
Co-Authors Adi Wira Prasetya, Indra Firamadhani, Nuzzulul Anisa Mega Suryani, Elsa Pratiwi, Esti Rizkiana Rizkiana Pratiwi, Esti