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Journal : Jurnal Perlindungan Tanaman Indonesia

Acceleration of Paraquat Biodegradation by Isolated Soil Bacteria Erni Martani; Nur Arfa Yanti; Sebastian Margino; Sri Noegrohati
Jurnal Perlindungan Tanaman Indonesia Vol 8, No 1 (2002)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.10105

Abstract

Herbicides residues were reported to have impact on the ecosystem. It was thought that acceleration of paraquat degradation would minimize these impacts. Paraquat was persistent in peat soil due to low pH. This study was done to investigate the role of bacterial isolates on the acceleration of paraquat degradation, especially in peat soil. The bacteria were isolated from several kinds of Indonesian soils using enrichment culture technique in a modified N-free medium. The medium was added with paraquat at gradually increase-concentration from 10, 20, and 40 ppm (w/w). Examinations in paraquat degradation were done in two levels. The first was in a synthetic medium (N-free medium); the second was in soil extract medium. Two kinds of peat were used to make the soil extract media, i.e. fibric and saphric peat soils. Several bacterial isolates were able to degrade paraquat in N-free medium. However, the degradation mode was different with those in peat soil extract media. None of them degraded paraquat in fibric and saphric soil extract media. It was suggested that the environmental limiting factors were responsible to the failure of paraquat degradation. Two selected isolates were able to degrade paraquat when the pH value of the extract medium was enhanced to around 5.5. Bacterial isolate of SM1, which was isolated from acid sulfate soil of Central Kalimantan, was the best isolate which was able to degrade paraquat in synthetic medium and peat soil extract media, especially in fibric extract medium. It degraded around 30%of paraquat within 15 day. Experiments are being done to enhance paraquat degradation by inoculation of mixed cultures of selected bacterial isolates.
Co-Authors A. Nurhana Abdul Mun'im Adi Parman Rudia, La Ode Ahmad, Sitti Wirdhana Alfin Alfin Amirullah -, Amirullah Andi Septiana Andi Tenri Ampa Ardiansyah ARDIANSYAH ARDIANSYAH Ardiansyah Ardiansyah Ardiansyah Ardiansyah Asmawati Munir, Asmawati Asrul Sani Aswan, Muhammad Aswan Bakkareng, Wirdhana Budiman, Herdi Cahyanti, Kartika Dwi Dedy Oetama Desty Tryaswaty DIRVAMENA BOER, DIRVAMENA Erni Martani Fahyuddin Fahyuddin, Fahyuddin Fatimah Alwi Albakar Haidin Haidin Haji Muhiddin, Nurhayani Handayani Hamid, Fitri Ida Usman Ida Usman Indrawati Indrawati Irnawati Irnawati Jamaluddin Jamaluddin Jamaluddin Jamaluddin Jamili Jamili Karya, Adi Kurnia Yati La Ode Adi Parman Rudia La Ode Ahmad Nur Ramadhan La Ode Iman Sulaiman La Ode Kadidae, La Ode Langkah Sembiring Lili Darlian, Lili M. Jahiding M. Rajab Sutra Mijaya Marlina, Wa Ode Leni Marwati Arji Mashuni Mashuni Mashuni Pallawagau Muhammad Jahiding Muhiddin, Nurhayani Haji Muhsin Muhsin Muhsin Muhsin Muhsin Muhsin Muksar, Muksar Muzuni, Muzuni Nurhayani H. Muhiddin Nurhayani H. Muhiddin, Nurhayani H. Nurhayani Haji Muhiddin Prasetya, Wandy Murti Ramlawati, Ramlawati Rudia, La Ode Adi Parman Santi Septiana, Santi Sebastian Margino Sebastian Margino Sitti Wirdhana Ahmad Sri Ambardini Sri Ambardini Sri Noegrohati Sulaiman, La Ode Iman Suleman, Darwis Surachma, Wahyuni Nurul Suriana Suriana Suriana Suriana Suriana Suriana Syah, Muhamad Azwar Taufik Walhidayah Vidya Nur Riska Parakkasi Wa Ode Isra Wa Ode Nanang Trisna Dewi Wa Ode Sitti Nurhaliza Wahyu Ahwarul Asis Wina Rezky