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A simple method for in vivo expression studies of Xanthomonas axonopodis pv. citri.

Identifieur interne : 000E20 ( PubMed/Corpus ); précédent : 000E19; suivant : 000E21

A simple method for in vivo expression studies of Xanthomonas axonopodis pv. citri.

Auteurs : Angela Mehta ; Yoko B. Rosato

Source :

Current microbiology [ 0343-8651 ] ; 2003.

RBID : pubmed:14669917

English descriptors

KwdEn :
- Bacterial Proteins (analysis), Bacterial Proteins (genetics), Bacterial Proteins (isolation & purification), Citrus sinensis (microbiology), DNA-Binding Proteins (genetics), Electrophoresis, Gel, Two-Dimensional (methods), Gene Expression, Plant Leaves (microbiology), Proteome (analysis), Proteome (isolation & purification), RNA, Bacterial (analysis), RNA, Bacterial (isolation & purification), RNA, Ribosomal (analysis), RNA, Ribosomal (isolation & purification), Reverse Transcriptase Polymerase Chain Reaction (methods), Transcription Factors (genetics), Transcription, Genetic, Xanthomonas (chemistry), Xanthomonas (genetics), Xanthomonas (isolation & purification).
MESH :
- chemical , analysis : Bacterial Proteins, Proteome, RNA, Bacterial, RNA, Ribosomal.
- chemical , genetics : Bacterial Proteins, DNA-Binding Proteins, Transcription Factors.
- chemical , isolation & purification : Bacterial Proteins, Proteome, RNA, Bacterial, RNA, Ribosomal.
- chemistry : Xanthomonas.
- genetics : Xanthomonas.
- isolation & purification : Xanthomonas.
- methods : Electrophoresis, Gel, Two-Dimensional, Reverse Transcriptase Polymerase Chain Reaction.
- microbiology : Citrus sinensis, Plant Leaves.
- Gene Expression, Transcription, Genetic.

Abstract

A major problem in studying bacterial plant pathogens is obtaining the microorganism directly from the plant tissue to perform in vivo expression (protein or mRNA) analyses. Here we report an easy and fast protocol to isolate Xanthomonas axonopodis pv. citri directly from the host plant, in sufficient amounts to perform protein fingerprinting by 2-D gel electrophoresis as well as RNA expression assays. The protein profile obtained was very similar to that of X. axonopodis pv. citri grown in the presence of a leaf extract of Citrus sinensis; however, some differential proteins expressed in vivo were observed. Total RNA extraction revealed typical 16S and 23S bands in the agarose gel, and RT-PCR reactions using primers specific for genes of the bacterium confirmed the quality of the RNA preparation. Also, RT-PCR reactions using plant ribosomal primers were employed, and no amplification product was obtained, indicating that plant RNA is not present in the bacterium RNA sample.

PubMed: 14669917

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pubmed:14669917

Le document en format XML

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<author><name sortKey="Mehta, Angela" sort="Mehta, Angela" uniqKey="Mehta A" first="Angela" last="Mehta">Angela Mehta</name>
<affiliation><nlm:affiliation>EMBRAPA-CENARGEN, Parque Estacção Biológica Final Av. W/5 Norte, CEP 70770-900, Brasilia, DF, Brazil. amehta@cenargen.embrapa.br</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Rosato, Yoko B" sort="Rosato, Yoko B" uniqKey="Rosato Y" first="Yoko B" last="Rosato">Yoko B. Rosato</name>
</author>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">A simple method for in vivo expression studies of Xanthomonas axonopodis pv. citri.</title>
<author><name sortKey="Mehta, Angela" sort="Mehta, Angela" uniqKey="Mehta A" first="Angela" last="Mehta">Angela Mehta</name>
<affiliation><nlm:affiliation>EMBRAPA-CENARGEN, Parque Estacção Biológica Final Av. W/5 Norte, CEP 70770-900, Brasilia, DF, Brazil. amehta@cenargen.embrapa.br</nlm:affiliation>
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<author><name sortKey="Rosato, Yoko B" sort="Rosato, Yoko B" uniqKey="Rosato Y" first="Yoko B" last="Rosato">Yoko B. Rosato</name>
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<series><title level="j">Current microbiology</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bacterial Proteins (analysis)</term>
<term>Bacterial Proteins (genetics)</term>
<term>Bacterial Proteins (isolation & purification)</term>
<term>Citrus sinensis (microbiology)</term>
<term>DNA-Binding Proteins (genetics)</term>
<term>Electrophoresis, Gel, Two-Dimensional (methods)</term>
<term>Gene Expression</term>
<term>Plant Leaves (microbiology)</term>
<term>Proteome (analysis)</term>
<term>Proteome (isolation & purification)</term>
<term>RNA, Bacterial (analysis)</term>
<term>RNA, Bacterial (isolation & purification)</term>
<term>RNA, Ribosomal (analysis)</term>
<term>RNA, Ribosomal (isolation & purification)</term>
<term>Reverse Transcriptase Polymerase Chain Reaction (methods)</term>
<term>Transcription Factors (genetics)</term>
<term>Transcription, Genetic</term>
<term>Xanthomonas (chemistry)</term>
<term>Xanthomonas (genetics)</term>
<term>Xanthomonas (isolation & purification)</term>
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<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Bacterial Proteins</term>
<term>Proteome</term>
<term>RNA, Bacterial</term>
<term>RNA, Ribosomal</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Bacterial Proteins</term>
<term>DNA-Binding Proteins</term>
<term>Transcription Factors</term>
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<keywords scheme="MESH" type="chemical" qualifier="isolation & purification" xml:lang="en"><term>Bacterial Proteins</term>
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<term>RNA, Ribosomal</term>
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<term>Reverse Transcriptase Polymerase Chain Reaction</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Citrus sinensis</term>
<term>Plant Leaves</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Gene Expression</term>
<term>Transcription, Genetic</term>
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<front><div type="abstract" xml:lang="en">A major problem in studying bacterial plant pathogens is obtaining the microorganism directly from the plant tissue to perform in vivo expression (protein or mRNA) analyses. Here we report an easy and fast protocol to isolate Xanthomonas axonopodis pv. citri directly from the host plant, in sufficient amounts to perform protein fingerprinting by 2-D gel electrophoresis as well as RNA expression assays. The protein profile obtained was very similar to that of X. axonopodis pv. citri grown in the presence of a leaf extract of Citrus sinensis; however, some differential proteins expressed in vivo were observed. Total RNA extraction revealed typical 16S and 23S bands in the agarose gel, and RT-PCR reactions using primers specific for genes of the bacterium confirmed the quality of the RNA preparation. Also, RT-PCR reactions using plant ribosomal primers were employed, and no amplification product was obtained, indicating that plant RNA is not present in the bacterium RNA sample.</div>
</front>
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<DateCompleted><Year>2004</Year>
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<DateRevised><Year>2006</Year>
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<Day>15</Day>
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<Title>Current microbiology</Title>
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<Abstract><AbstractText>A major problem in studying bacterial plant pathogens is obtaining the microorganism directly from the plant tissue to perform in vivo expression (protein or mRNA) analyses. Here we report an easy and fast protocol to isolate Xanthomonas axonopodis pv. citri directly from the host plant, in sufficient amounts to perform protein fingerprinting by 2-D gel electrophoresis as well as RNA expression assays. The protein profile obtained was very similar to that of X. axonopodis pv. citri grown in the presence of a leaf extract of Citrus sinensis; however, some differential proteins expressed in vivo were observed. Total RNA extraction revealed typical 16S and 23S bands in the agarose gel, and RT-PCR reactions using primers specific for genes of the bacterium confirmed the quality of the RNA preparation. Also, RT-PCR reactions using plant ribosomal primers were employed, and no amplification product was obtained, indicating that plant RNA is not present in the bacterium RNA sample.</AbstractText>
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A simple method for in vivo expression studies of Xanthomonas axonopodis pv. citri.

A simple method for in vivo expression studies of Xanthomonas axonopodis pv. citri.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki