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All Journal Program Kreativitas Mahasiswa - Penelitian Jurnal Riau Biologia
Sari Umayah, Sari
Jurusan Biologi, FMIPA, Universitas Riau
Agriculture, Biological Sciences & Forestry

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MIKROBA ENDOFIT “SI PEMBUNUH” Escherichia coli Walpajri, Febri; Rohyani, Rohyani; Umayah, Sari
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Endophytic microbes are microscopic microorganisms (bacteria and fungi) that live in the tissues of plants, leaves, roots, fruits and stems. The parasite plants (Helixanthera sp.) on sapodilla (Manilkara zapota), cocoa (Theobroma cacao) and coffee (Coffea arabica) are medicinal plants. These plants have endophytic microbes that have antibacterial compounds as antibiotics. The purpose of this study was to get endophytic microbial isolates from parasite plants (Helixanthera sp.) on sapodilla, cocoa and coffee, and determine the antibacterial activity against Escherichia coli. Sampling was conducted in Kampar regency and Pekanbaru city. The parasite plants were collected from the field and their endophytic microbes were isolated using surface sterilization method and purified before being tested the activity against E. coli. The selected microbes were then characterized. The results obtained 30 endophytic bacterial isolates and 10 endophytic fungi that had activity against E. coli. Endophytic bacteria isolate which had the highest activity against E. coli  was Bbs4 isolate from sapodilla parasites with 12,1 mm  inhibition zone diameter and endophytic fungi isolate which had the highest activity against E. coli was Jbc2 isolate (genus Penicillium)  from cocoa parasites with 12,1 mm inhibition zone diameter. Keywords:  antibacterial, endophytic microbes, Escherichia coli, parasite plant
Tingkat Kerusakan Ekosistem Mangrove di Desa Teluk Belitung Kecamatan Merbau Kabupaten Kepulauan Meranti UMAYAH, SARI; GUNAWAN, HARIS; ISDA, MAYTA NOVALIZA
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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The destruction of mangrove forest ecosystems in Teluk Belitung Village, Kepulauan Meranti, wascaused by various human activities such as industrial activities, illegal logging, and coastal erosion.Rehabilitation efforts was needed to preserve mangrove forests. The community involvement had animportant role in determining the success of mangrove rehabilitation. This study aimed to determine theextent of mangrove forest ecosystem destruction based on the density and mangrove forest cover.Furthermore, this research described local community participation level and their knowledge inrehabilitation efforts of mangrove forest ecosystem. This study was conducted in Teluk Belitung,Subdistrict of Merbau, Kepulauan Meranti from November 2014 to March 2015. This study usedobservation, questionnaire, and interview methods to investigate the destruction of mangrove forestsecosystem and local community involvement in mangrove forests rehabilitation. The results showed thatthe region has suffered damage to the mangrove with a total density value of 626.67 trees/ha andmangrove forest cover in all types of <50%. The level of public participation was affected by socialstatus, planning, attitudes, and community rules in Teluk Belitung.Keywords: mangrove, community, participation, rehabilitation
Co-Authors Febri Walpajri Haris Gunawan Mayta Novaliza Isda Rohyani Rohyani