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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Plantropica: Journal of Agricultural Science Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Agrosaintifika: Jurnal Ilmu-Ilmu Pertanian Jurnal HPT (Hama Penyakit Tumbuhan)
Antok Wahyu Sektiono
Jurusan Hama Dan Penyakit Tumbuhan Fakultas Pertanian Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Education Environmental Science Social Sciences

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Journal : Agrosaintifika: Jurnal Ilmu-Ilmu Pertanian

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MECHANISM ANTAGONISM of Trichoderma viride AGAINST SEVERAL TYPES of PATHOGENS and PRODUCTION of SECONDARY METABOLITES Anton Muhibuddin; Endah Mulyaningtyas Setiyowati; Antok Wahyu Sektiono
AGROSAINTIFIKA Vol 4 No 1 (2021): November
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (395.111 KB) | DOI: 10.32764/agrosaintifika.v4i1.2375

Abstract

Biological control agents using antagonistic fungi have the ability to inhibit the development of disease-causing pathogens by various mechanisms such as competition for space and nutrients, antibiosis by producing antibiotics in the form of chemical compounds, and parasitism by entangling pathogenic hyphae. Antibiotic mechanism is a condition in which an organism secretes one or more metabolites that have a negative effect on other organisms. One of the fungi that has the ability as an antibiosis is Trichoderma viride, where this fungus secretes secondary metabolites in the form of a viridiol phytotoxin compound. This study conducted to determine the antagonist mechanism of the fungus T. viride in suppressing the growth of Alternaria solani, Fusarium oxysporum, Rhizoctonia solani, and Sclerotium rolfsii which causes disease in some cultivated plants, as well as what compounds T. viride possesses in suppressing the growth of other pathogens. This research was carried out at the Plant Disease Laboratory, Department of Plant Pest and Disease, Faculty of Agriculture, Brawijaya University from November 2020 to August 2021. The research was conducted using Trichoderma viride as antagonist fungus and Alternaria solani, Fusarium oxysporum, Rhizoctonia solani, and Sclerotium rolfsii as pathogenic fungi. This research consisted of 3 stages, the first stage was rejuvenation and macroscopic and microscopic characterization of pathogenic fungi and antagonist fungi. The second stage is the in vitro antagonist test using the dual culture method using a completely randomized design with 6 replications. The third stage is the phytochemical test of secondary metabolites using 5 test, namely terpenoid and steroid test, the alkaloid test, the flavonoids test, the tannin test, and the saponin test. The results showed that T. viride had an inhibitory ability >50% against four types of pathogens. The mechanism of T. viride antagonist against four treatments, three treatments belonged to the competition mechanism and one treatment belonged to the microparasite mechanism. The content of secondary metabolites of T. viride are steroids and alkaloids.
Co-Authors Adi Tiya Yanuar Aditya Nugraha Putra Anton Muhibuddin Dinna Hadi Sholikah Dony Firman Fajariza Endah Mulyaningtyas Setiyowati Ika Rochdjatun Sastrahidayat Indah Mutmainah Kirana Indah Nur Khulillah Istika Nita Kurniawan Sigit Wicaksono Melati Julia Rahma Muhammad Akhid Syibli Muhammad Akhid Syib’li Muhibuddin, Anton Nia Devita Mevianti Novalia Indaryaningsih Novency Habtuti Oki Mustofa Sativandi Riza Siti Nur Kajariyah Suluh Elman Swara Syamsuddin Djauhari Syamsuddin Djauhari Djauhari Syamsul Huda Harisul Muslimin Wanda Kristiawati Yogo Setiawan Yohana Avelia Sandy Yuni Widyawati