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All Journal Jurnal Fitopatologi Indonesia Cropsaver : Journal of Plant Protection Agrifor : Jurnal Ilmu Pertanian dan Kehutanan JURNAL AGROTEKNOLOGI JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Journal of Applied Agricultural Science and Technology JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Jurnal Hilirisasi IPTEKS (JHI) Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks
Zurai Resti
Fakultas Pertanian Universitas Andalas, Padang, Sumatera Barat
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Dentistry Engineering Environmental Science Health Professions Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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Journal : Cropsaver : Journal of Plant Protection

 1 
Antagonistic Test of Endophytic Bacteria Against Fusarium oxysporum f.sp. cepae Causes of Moler Disease on Shallots Wihayyu, Afri; Resti, Zurai; Sulyanti, Eri; Darnetty, Darnetty; Khairul, Ujang
CROPSAVER Vol 7, No 1 (2024)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v7i1.54351

Abstract

Fusarium oxysporum f.sp. cepae (FOCe) is a pathogenic fungus causing moler disease in shallots. One method of controlling this disease is by using endophytic bacteria. Endophytic bacteria are bacteria that live in plant tissues without causing disease symptoms. This research aims to obtain the most effective endophytic bacteria in inhibiting the growth of the pathogenic fungus FOCe. The study employs a Completely Randomized Design (CRD) consisting of 8 treatments with 3 replications each. The treatments include Bacillus sp. HI, Bacillus sp. SJI, Bacillus cereus P14, Bacillus cereus Se07, Bacillus subtilis, Serratia marcescens JB1E3, Serratia marcescens ULG1E4, and control. Tests conducted include the antibiosis test of endophytic bacterial cells using the dual culture method and the secondary metabolite test using media poisoning method. The observed parameters include inhibition zone, effectiveness of secondary metabolites, fresh weight, and dry weight of the FOCe fungus. All endophytic bacteria were capable of inhibiting the growth of FOCe. The most effective endophytic bacteria in inhibiting the growth of FOCe were found to be Serratia marcescens ULG1E4 and Serratia marcescens JB1E3. In the antibiosis test of endophytic bacterial cells, Serratia marcescens ULG1E4 exhibited an inhibition zone of 64.44%, while Serratia marcescens JB1E3 showed an inhibition zone of 61.11%. In the secondary metabolite compound test, the effectiveness values for Serratia marcescens ULG1E4 and Serratia marcescens JB1E3 were 95.31% and 95.03%, respectively.
Pathogenicity of endophytic bacteria as entomopathogens against Spodoptera litura fabricius. (Lepidoptera: noctuidae) Rahman, Afdil; Hamid, Hasmiandi; Resti, Zurai
CROPSAVER Vol 6, No 1 (2023)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v6i1.44665

Abstract

One of the biological controls of pest and plant disease is the use of enophytic bacteria. This study aimed to obtain endophytic bacterial from the root tissue of the shallot plant, which is potential as entomopathogens against the larvae of Spodoptera litura. This research was arranged in a completely randomized design (CRD) with nine treatments consisting of eight endophytic bacteria (isolation from shallot root tissue) and one control with three replications. Parameters observed were larval mortality, percentage of normal and abnormal pupae formed, percentage of normal and abnormal imago formed. The results showed that the bacteria of Serratia marcescens JB1E3 and Bacillus cereus P.14 caused the highest mortality in the larval phase, while Serratia marcescens ULG1E4 and Bacillus sp. SJI showed a long-term (latent) effect, resulting in no formation of pupa and imago of Spodoptera litura.
Antagonistic Activity of Endophytic Bacterial Consortia Against Helminthosporium oryzae Breda de Haan, The Causal Agent of Brown Spot Disease in Rice Resti, Zurai; Nurbailis, Nurbailis; Fauzia, Afifa
CROPSAVER - Journal of Plant Protection Vol 8, No 2 (2025)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v8i2.67906

Abstract

Helminthosporium oryzae is a pathogen responsible for rice damage and losses of up to 45%. A consortium of endophytic bacteria as a biological agent is one of alternative and eco-friendly ways to suppress the development of plant pathogenic fungi. This research aimed to obtain an endophytic bacterial consortium capable of inhibiting the growth of H. oryzae. This research used a Completely Randomized Design (CRD) to investigate the efficacy of a consortium of six endophytic bacteria, alongside a control group, with three replications. The treatments included A (control), B (Serratia marcescens ULG1E4; Serratia marcescens JB1E3), C (Bacillus sp. HI; Serratia marcescens JB1E3), D (Bacillus sp. HI; Bacillus sp. SJI; Serratia marcescens JB1E3), E (Serratia marcescens ULG1E4; Serratia marcescens JB1E3; Serratia marcescens JB1E2), F (Bacillus sp. HI; Bacillus sp. SJI), and G (Bacillus sp. SJI; Serratia marcescens ULG1E4). The ability of endophytic bacterial consortia to suppress the growth of H. oryzae was evaluated utilizing dual culture and poisoned media techniques. The parameters observed were the inhibitory capacity of endophytic bacterial consortia, the inhibitory potential of secondary metabolites produced by the endophytic bacterial consortia, as well as the fresh weight and dry weight of the fungus. The results showed that treatment G (Bacillus sp. SJI; Serratia marcescens ULG1E4), B (S. marcescens ULG1E4; Serratia marcescens JB1E3), and E (Serratia marcescens ULG1E4; Serratia marcescens JB1E3; Serratia marcescens JB1E2), had a high ability to suppress the growth of H. oryzae with suspension inhibition 61,28%, 62,93%, 63,55%, and secondary metabolites inhibition rates of 96,93%, 94,21%, 97,60%.
Co-Authors . Nasrun Afrika Diana ALBANA, HASAN Arneti Arneti Aziz Fauzi Darnetty, Darnetty Deddi Prima Putra Dewi Suhalita Elfitri Syahdia Eri Sulyanti Fauzi, Aziz Fauzia, Afifa FRISKIA HANATUL QOLBY Haliatur Rahma, Haliatur Hamid, Hasmiandi Indra Dwipa Irawati Chaniago Jumsu Trisno Liswarni, Yenny Martinius Martinius Martinius Martinius Martinius Martinius Martinius Martinius Murdiman, Imelda MY SYAHRAWATI Nasrum ., Nasrum Nasrun . Nasution, Fauzan Abid Hanif Nurbailis Nurfitri Sari Nurhaliza, Nurhaliza Oktaviani, Silvia Rahman, Afdil Ryan Hidayat Sandra Desiska Sulyanti, Eri Sutoyo Sutoyo Tre Julia Nasral TRIMURTI HABAZAR UJANG KHAIRUL Wihayyu, Afri Yenny Liswarni Yenny Liswarni Yulmira Yanti Yusniwati Yusniwati