Serveur d'exploration sur le phanerochaete

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Molecular approach for analysis of model fungal genes encoding ligninolytic peroxidases in wood-decaying soil systems.

Identifieur interne : 000869 ( Main/Exploration ); précédent : 000868; suivant : 000870

Molecular approach for analysis of model fungal genes encoding ligninolytic peroxidases in wood-decaying soil systems.

Auteurs : M. Stuardo [Chili] ; M. Vásquez ; R. Vicu A ; B. González

Source :

RBID : pubmed:14687214

Descripteurs français

English descriptors

Abstract

AIMS

Test the use of nondegenerated consensus polymerase chain reaction (PCR) primers targeting lip and mnp sequences to detect ligninolytic fungi in wood-decaying soil systems, avoiding the need for enrichment or isolation on traditional fungal media culture.

METHODS AND RESULTS

The PCR primers were tested with total DNA isolated from incubations of wood-soil systems inoculated or not with the white-rot fungi Phanerochaete chrysosporium, or a white-rot sample obtained from a Nothofagus forest. The PCR products for lip and mnp sequences were only obtained in soil with P. chrysosporium-colonized wood chips. In these soil samples, reverse transcription-PCR analysis of lip and mnp PCR products indicated expression of LipA, LipB, LipJ and MnP isoenzymes.

SIGNIFICANCE AND IMPACT OF THE STUDY

This is the first assessment of the use of consensus PCR primers for direct detection of ligninolytic peroxidase genes in wood-decaying soil systems.


DOI: 10.1046/j.1472-765x.2003.01442.x
PubMed: 14687214


Affiliations:


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Le document en format XML

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<term>DNA, Fungal (chemistry)</term>
<term>DNA, Fungal (isolation & purification)</term>
<term>Fungal Proteins (genetics)</term>
<term>Genes, Fungal (MeSH)</term>
<term>Peroxidases (genetics)</term>
<term>Polymerase Chain Reaction (methods)</term>
<term>Sequence Analysis, DNA (MeSH)</term>
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<term>ADN fongique (composition chimique)</term>
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<b>AIMS</b>
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<p>Test the use of nondegenerated consensus polymerase chain reaction (PCR) primers targeting lip and mnp sequences to detect ligninolytic fungi in wood-decaying soil systems, avoiding the need for enrichment or isolation on traditional fungal media culture.</p>
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<b>METHODS AND RESULTS</b>
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<p>The PCR primers were tested with total DNA isolated from incubations of wood-soil systems inoculated or not with the white-rot fungi Phanerochaete chrysosporium, or a white-rot sample obtained from a Nothofagus forest. The PCR products for lip and mnp sequences were only obtained in soil with P. chrysosporium-colonized wood chips. In these soil samples, reverse transcription-PCR analysis of lip and mnp PCR products indicated expression of LipA, LipB, LipJ and MnP isoenzymes.</p>
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<b>SIGNIFICANCE AND IMPACT OF THE STUDY</b>
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<p>This is the first assessment of the use of consensus PCR primers for direct detection of ligninolytic peroxidase genes in wood-decaying soil systems.</p>
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