Isolasi dan Identifikasi Bakteri Endofit Beberapa Jenis Pohon Berhabitat Basah

  • Nuruwe C
  • Matinahoru J
  • Hadijah M
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Abstract

The purpose of this study was to determine the macroscopic and microscopic characteristics of endophytic bacteria that live in the root and leaf tissue of several wet habitat trees, such as: kayu marsegu (Anthocephalus cadamba), ketapang hutan (Terminalia copelandii) and kayu burung (Elaeocarpus ganitrus). This study shows that the results of microscopic identification of 20 samples of bacterial isolates, there are only 11 samples of endophytic bacteria that live in the root and leaf tissue of tree samples. Furthermore, based on microscopic identification with the Gram Staining Method, it was found that there were 17 samples of endophytic bacterial isolates categorized into gram-negative (-), namely: DM1, DM3, DM4, AM1, AM2, AM3, AM4, DKH2, DKH3, DKH4, AKH1, AKH2, AKB1, AKB2, AKB3, DKB3, and DKB4. While 3 other bacterial isolate samples were classified into gram-positive (+), namely: AKH3, AKH4, and AKB4. Based on observations with a microscope with 1000 times the magnification size, all bacteria isolates were categorized as a rounded bacterial group, and therefore they are classified as genera Monococcus, Staphylococcus, and Streptococcus. The study also found that all three genera of bacteria have the ability to live in root and leaf tissue, even though the tree habitat is in a long-wet condition. Keywords: endophytic bacteria, isolation, morphology, wet habitat trees   ABSTRAK Tujuan dari penelitian ini adalah untuk menentukan karakteristik makroskopis dan mikroskopis dari bakteri endofit yang hidup di akar dan jaringan daun dari beberapa pohon habitat basah, seperti: kayu marsegu (Anthocephalus cadamba), ketapang hutan (Terminalia copelandii) dan kayu burung (Elaeocarpus ganitrus). Penelitian ini menunjukkan bahwa dari hasil identifikasi mikroskopis terhadap 20 sampel isolat bakteri, hanya ada 11 sampel bakteri endofit yang hidup di akar dan jaringan daun sampel pohon. Selanjutnya, berdasarkan identifikasi mikroskopis dengan Metode Pewarnaan Gram, ditemukan bahwa ada 17 sampel isolat bakteri endofit yang dikategorikan menjadi gram‑negatif (-), yaitu: DM1, DM3, DM4, AM1, AM2, AM3, AM4, DKH2, DKH3, DKH4, AKH1, AKH2, AKB1, AKB2, AKB3, DKB3, dan DKB4. Sedangkan 3 sampel isolat bakteri lainnya digolongkan kedalam gram-positif (+), yaitu: AKH3, AKH4, dan AKB4. Berdasarkan pengamatan dengan mikroskop ukuran pembesaran 1000 kali, semua isolat bakteri dikategorikan sebagai kelompok bakteri bulat, dan oleh karena itu mereka diklasifikasikan sebagai genus Monococcus, Staphylococcus, dan Streptococcus. Studi ini juga menemukan bahwa ketiga genera bakteri memiliki kemampuan untuk hidup dalam jaringan akar dan daun, meskipun habitat pohon berada dalam kondisi basah yang lama. Kata Kunci: bakteri endofit, isolasi, morfologi, pohon berhabitat basah

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APA

Nuruwe, C., Matinahoru, J. M., & Hadijah, M. H. (2020). Isolasi dan Identifikasi Bakteri Endofit Beberapa Jenis Pohon Berhabitat Basah. JURNAL BUDIDAYA PERTANIAN, 16(1), 65–70. https://doi.org/10.30598/jbdp.2020.16.1.65

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