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All Journal HAYATI Journal of Biosciences Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Microbiology Indonesia The Journal of Experimental Life Sciences (JELS) Agrointek Jurnal Pangan dan Agroindustri Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknologi Pertanian agriTECH Indonesian Journal of Biotechnology UNEJ e-Proceeding Chimica et Natura Acta Agroindustrial Technology Journal Menara Perkebunan
AGUSTIN KRISNA WARDANI
Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience

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Journal : Menara Perkebunan

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Biocontrol activity of endophytic bacteria from cocoa against Phytophthora sp. and Colletotrichum sp. Grace Wijaya; Agustin Krisna Wardani; Deden Eris
Menara Perkebunan Vol. 91 No. 1 (2023): 91 (1), 2023
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v91i1.522

Abstract

Cocoa (Theobroma cacao L.) and chili pepper (Capsicum annuum L.) are commonly cultivated by farmers, and in some cases, both crops are grown together in intercropping systems. The main pathogen infected cocoa is the Phytophthora sp. fungus, which causes fruit rot, stem cancer, and leaf blight, while Colletotrichum sp. causes anthracnose in chili pepper plants. The ability of endophytic bacteria to inhibit the growth of fungi and bacterial pathogens is well known. In this study, the biocontrol ability of endophytic bacteria against fungal pathogens was tested, and a biocontrol preliminary test was also observed by examining their potential inhibition on Chromobacterium violaceum called antiquorum sensing test. Endophytic bacteria were isolated from cocoa plants, while Phytophthora and Colletotrichum were isolated from cocoa and chili pepper plants that showed symptoms of fruit rot and anthracnose. A total of 34 endophytic bacterial isolates were successfully obtained, with 10 isolates from leaves (DK), 12 isolates from branches (RK), and 12 isolates from roots (KA) of cocoa plant ICCRI 4. Sixteen isolates showed quorum sensing ability, which AHL degradation index ranging from 0.44 – 1.56. Antagonistic tests showed that 11 out of 16 isolates had strong antibiosis against Phytophthora sp., with inhibition zones ranging from 0.6-1.35 cm. Meanwhile, 10 out of 16 isolates had strong antibiotics against Colletotrichum sp., with clear zones ranging from 0.6 – 1.1 cm. The three best endophytic bacterial isolates that had a combination of antiquorum sensing ability on C. violaceum and biocontrol against Phytophthora sp. and Colletotrichum sp. were RK 11, KA 1, and KA 8. [Keywords: antagonist, ahl lactonase, plant beneficial microorganism]
Co-Authors - Fadlurrahman, - . Harijono Adi Syamsuri Agustin Krisna Wardhani Ajeng Astrini Brahmanti Aji Sutrisno AJI SUTRISNO Aji Sutrisno Ajrullah, Mauludy Jutta Ana Fauziah Anita Fitri Astuti Anita Fitri Astuti Anita Kusuma Finalissari Annisa Alirsyah Annisa Fadlilah Koos Cahyani Annisa Fadlilah Koos Cahyani Asma' Khoirun Nisa Atmiral Ernes Azmi Nahdhiyati Fathimah Azmy Nahdhiyati Fathimah, Azmy Nahdhiyati BAMBANG SUSILO Budiasih Wahyuntari Christina Ekawati Halim Dadang Suhendar Deden Eris Devi arianty Dian Widya Ningtyas Dwi Arinda Syahputri Dwi Arinda Syahputri Dwi Okta Indriani Dwi Okta Indriani Efendi Oulan Gustav Hakim Nata Buana Eko Sutrisno Hawusiwa Eko Sutrisno Hawusiwa ekwan nofa wiratno Ekwan Nofa Wiratno Ekwan Nofa Wiratno Elok Puji Kurnia Sari Endrika Widyastuti Erni Sofia Murtini Erryana Martati Fabryana Noor Anggita Putri Fabryana Noor Anggita Putri Fadeli Muhammad Habibie Faula Libna Nabela Fenty Nurtyastuti Eka Pertiwi Feronika Heppy Sriherfyna Fithri Choirun Nisa Grace Wijaya Gunawan, Ellen Fenix Halimatus Sa'diyah Hardanti, Sri Harsojo Harsojo Harsojo Harsojo Harsojo Harsojo Helmy Aditya Prabowo, Helmy Aditya Husna, Afifa Ika Rachmawati Wardani Ika Rachmawati Wardani Ika Yuli Andarti Ika Yuli Andarti Indah Kusumawardini Indria Purwantiningrum IS HELIANTI Is Helianti IS HELIANTI Jamhari Jamhari Joni Kusnadi Kafidul Ulum Kezia Abib Yerah Tjandra Kharisma Nafia Safitri Laili One Januarista Lauren Chrisya Wiguna Lia Oriana Nindita Lia Ratnawati Luqvia Noer Islami Syamsudin Maria Ulfah Marisa Zakiya Ulfa Marisa Zakiya Ulfa, Marisa Zakiya Mochamad Nurcholis Muhamad Taufiqul Naufal Muhamad Tommy Adrian Muhamad Tommy Adrian Muhammad Nur Sigit Harianto Muhammad Nur Sigit Harianto Niknik Nurhayati NIKNIK NURHAYATI Nur Ida Panca Nugrahini Pramesti, Nadya Shafa Pratidina Andayani Prawiro, Sumarno Reto Prestasia Budi Lestari Reno Nasrudin Salas Retno Dwi Yustina Rhytia Ayu C. Putri Riris Wahyuhapsari Riris Wahyuhapsari Risqia Adinda Putri RR. Ella Evrita Hestiandari RUTH CHRISNASARI RUTH CHRISNASARI Silvy Novita Antrisna Putri Silvy Novita Antrisna Putri, Silvy Novita Antrisna Sindy Hamadi Suharjono Suharjono Suminar Diyah Nugraheni SY, Muhammad Zakwan Saputra TATI NURHAYATI Tri Ardyati Tri Yudani MR Untung Murdiyatmo UNTUNG MURDIYATMO Venisa Yosephi Vicha Vitalaya Masduki Vindy Irmanita Vindy Irmanita, Vindy Widya Dwi Rukmi Putri Windra Prayoga Yuliandri, Rahmat