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All Journal Planta Tropika Jurnal Agrotek Tropika
Raharjo, Laksamana Agadhia
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Agriculture, Biological Sciences & Forestry

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UJI ANTAGONIS Streptomyces spp. TERHADAP Sporisorium scitamineum PENYEBAB LUKA API SECARA IN VITRO Raharjo, Laksamana Agadhia
Jurnal Agrotek Tropika Vol. 13 No. 1 (2025): JURNAL AGROTEK TROPIKA VOL 13, FEBRUARI 2025
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v13i1.8532

Abstract

Tebu (Saccharum officinarum L.) merupakan salah satu tanaman penghasil gula yang saat ini sudah menjadi kebutuhan pokok. Tebu mayoritas digunakan sebagai bahan dasar pembuatan gula, dimana gula ini dapat diperoleh dengan mengolah 100 kg tebu sehingga dapat menghasilkan gula 10 kg. Kebutuhan gula lokal melebihi produksi tebu sehingga indonesia mengimpor gula dari luar. Faktor utama yang mempengaruhi produksi tebu ialah adanya kehadiran hama dan penyakit tanaman tebu salah satunya ialah Sporisorium scitamineum. S. scitamineum mampu menyebabkan kerusakan sampai 90% jika tidak diperlakukan semacam pengendalian, pengendalian yang sering dilakukan ialah dengan eradikasi dan pemberian fungisida. Pengendalian dengan menggunakan mikroorganisme terhadap S. scitamineum belum dikembangkan secara maksimal, Streptomyces sp. merupakan aktinomycetes yang memiliki kemampuan dalam menghambat pertumbuhan jamur patogen. Tujuan penelitian ini ialah untuk mengetahui kemampuan Streptomyces spp. dalam menghambat pertumbuhan S. scitamineum secara In vitro. Metode penelitian berupa uji antagonis sementara parameter pengamatan ialah daya hambat. Hasil yang diperoleh ialah isolat S2Ss mempunyai daya hambat tinggi 73% yang diikuti dengan S3Ss 69%, S1Ss 59%, S5Ss 53%, dan S4Ss 49%.
Biocontrol Strategies Using Streptomyces spp. and Trichoderma spp. against the Sugarcane Smut Pathogen Sporisorium scitamineum: An in Vitro Study Indrawan, Arga Dwi; Raharjo, Laksamana Agadhia; Rahmadhini, Noni
PLANTA TROPIKA Vol. 14 No. 1 (2026)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v14i1.21414

Abstract

Sporisorium scitamineum is a Basidiomycota pathogen that causes smut disease in sugarcane plants. The pathogen can infect all types of sugarcane, with the extent of damage depending on the plant's susceptibility. Farmers rely on chemical pesticides to control S. scitamineum , but these pesticides have negative environmental impacts. Using Trichoderma sp. and Streptomyces sp. as biocontrol has been proven against fungal infections and is safe for the environment. This study evaluated the potential of Trichoderma sp. and Streptomyces sp. against S. scitamineum under in vitro conditions. Each of the three isolates of Trichoderma sp. and Streptomyces sp. was assessed using the VOC (Volatile Organic Compound), chitinase enzyme, and in vitro antagonistic assays. The results indicated that Streptomyces spp. demonstrated higher chitinase activity compared to Trichoderma spp., with isolate ST1 having the highest chitinase index at 3.7%. VOC test demonstrated that Streptomyces spp. markedly inhibited the mycelial growth of S. scitamineum, attaining inhibition rates of up to 82%. Conversely, Trichoderma spp. exhibited enhanced antagonistic activity via direct interaction, with isolate TD2 suppressing pathogen growth by 82% in dual-culture assays. The findings show that Streptomyces spp. and Trichoderma spp. suppressed S. scitamineum in different but complementary ways. The study shows that they could be used as environmentally friendly biological control agents to manage sugarcane smut.
Co-Authors Indrawan, Arga Dwi Noni Rahmadhini