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All Journal Jurnal Perlindungan Tanaman Indonesia
Hadiwiyono Hadiwiyono
Fakultas Pertanian Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry

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Quorum Sensing: Suatu Sistem Komunikasi Bakteri Fitopatogen, Peranannya Pada Proses Infeksi, dan Peluangnya sebagai Basis Pengembangan Strategi Baru dalam Pengendalian Penyakit Tumbuhan Hadiwiyono Hadiwiyono
Jurnal Perlindungan Tanaman Indonesia Vol 15, No 2 (2009)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11765

Abstract

Previously, it is thought that bacterium is an autonomous unicellular organism with no capacity for collective behavior. Now the paradigm has changed since there are communication between intercell bacteria. The phytopathogenic bacteria are able to regulate gene expression which play an important role in infection process in the host plant. The gene expression regulation involves an intercell communication in the population and this is called as quorum sensing (QS). This paper reviews the QS as a communication system of phythopathogenic bacteria, its role in infection process on the host plant, and its opportunity as the basis of novel strategy development on plant disease control.
Tanah Supresif: Terminologi, Sejarah, Karakteristik, dan Mekanisme Hadiwiyono Hadiwiyono
Jurnal Perlindungan Tanaman Indonesia Vol 14, No 2 (2008)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11881

Abstract

Many definitions of the suppressive soil purposed were proposed by some authors, however in summary, suppressive soil is the soil where virulent pathogen and susceptible host exist but the population and or disease produced by the pathogen are limited, due to the biotic factors supported by some specific environmental conditions. The suppressive soil phenomena has been recognized since 100 years ago, but it was thought as an interesting field since 30 years ago, and since the year many research topics related to the suppressive soil are conducted and leading to be popular. Based on the characteristic, suppressive soil could be grouped into general suppressive involving an antagonistic microbe complex being nontransferable, and specific suppressive caused by one or some antagonistic microbe being transferable. Antagonism mechanism of the microbes involved in the suppressiveness could be through antibiosis, competision, parasitism, predatism, and induced resistance.
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