Uji Antagonis Jamur Gliocladium sp dalam Menghambat Pertumbuhan Jamur Fusarium sp Penyebab Penyakit Layu Pada Tanaman Pisang (Musa paradisiaca L.) The Antagonist Test of Gliocladium sp Fungus on the growth inhibiting of the Fusarium sp that Cause Wilt Diseases in Banana (Musa paradisiaca L.)
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Abstract
The fungus Gliocladium sp. is the microbial soil that can be isolated from the root zone of banana plant (Musa Paradica L.) Those fungi are included in the group of potentially antagonistic microbes in the growth inhibiting of Fusarium sp fungus which infects the plants and it cause disease on banana crops withered. This research aim was to know the difference of growth inhibiting percentage of Gliocladium sp, to the Fusarium sp. fungus at pH 5.5 and pH 7. This research uses experiment methods. The results of the growth inhibiting percentage in the last day was higher at pH 5.5 of 35.2% whereas at pH 7 of 14%. This indicates that the growth of the fungus is more suitable in pH acidic approach because of its nature which is able to adjust to the fungal metabolism. The inhibition mechanism of the Gliocladium sp. on fungus inhibiting of Fusarium sp. has the stages of the competition, lysis and mycoparasit.
Keywords: Gliocladium sp., Fusarium sp, banana plants, pH
ABSTRAK
Jamur Gliocladium sp. merupakan mikroba tanah yang dapat diisolasi dari daerah perakaran tanaman pisang (Musa Paradica L.) Jamur tersebut termasuk dalam kelompok mikroba antagonis yang berpotensi dalam menghambat pertumbuhan jamur Fusarium sp yang menginfeksi tanaman yang menyebabkan penyakit layu pada tanaman pisang. Penelitian ini bertujuan untuk mengetahui perbedaan persentase daya hambat jamur Gliocladium sp. dalam menghambat pertumbuhan jamur Fusarium sp. pada pH 5,5 dan pH 7. Penelitian ini menggunakan metode deskriptif dan eksperimen. Hasil dari persentase daya hambat hari terakhir lebih tinggi pada pH 5,5 sebesar 35,2% sedangkan pada pH 7 sebesar 14%. Hal ini menandakan bahwa pertumbuhan jamur lebih cocok di pH mendekati asam karena sifatnya yang mampu menyesuaikan dengan metabolisme jamur. Mekanisme Penghambatan jamur Gliocladium sp. kepada jamur Fusarium sp. mempunyai tahap kompetisi, lisis dan mikoparasit.
Kata kunci: Gliocladium sp., Fusarium sp., tanaman pisang, pH
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