Development of Polymerase Chain Reaction Primers Highly Specific for Xanthomonas albilineans, the Causal Bacterium of Sugarcane Leaf Scald Disease

New primers were developed that greatly improved the specificity of the polymerase chain reaction (PCR) protocol for Xanthomonas albilineans, the causal agent of sugarcane leaf scald disease. Length-polymorphic PCR products, amplified under the current PCR protocol from the 16S-23S ribosomal DNA int...

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Veröffentlicht in:Plant disease. - 1997. - 83(1999), 3 vom: 12. März, Seite 218-222
1. Verfasser: Pan, Y-B (VerfasserIn)
Weitere Verfasser: Grisham, M P, Burner, D M, Legendre, B L, Wei, Q
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 1999
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article
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520 |a New primers were developed that greatly improved the specificity of the polymerase chain reaction (PCR) protocol for Xanthomonas albilineans, the causal agent of sugarcane leaf scald disease. Length-polymorphic PCR products, amplified under the current PCR protocol from the 16S-23S ribosomal DNA intergenic transcribed spacers (ITS) of X. albilineans and three unidentified sugarcane saprophytic bacterial species, were cloned and sequenced. Fourteen other nonredundant ITS sequences retrieved from the database were highly homologous to the sequence of X. albilineans. Two X. albilineans-specific PCR primers, namely, PGBL1 (5' CTT TGG GTC TGT AGC TCA GG) and PGBL2 (5' GCC TCA AGG TCA TAT TCA GC), were designed based on a multiple sequence alignment among these 18 sequences. These two primers permitted specific PCR amplification of a 288-bp DNA product from all 71 diverse X. albilineans strains tested. No amplification product was observed from any other bacterial species tested, including the three unidentified sugarcane saprophytes. The new PCR protocol has been routinely used to detect the leaf scald pathogen from infected sugarcane tissues 
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700 1 |a Grisham, M P  |e verfasserin  |4 aut 
700 1 |a Burner, D M  |e verfasserin  |4 aut 
700 1 |a Legendre, B L  |e verfasserin  |4 aut 
700 1 |a Wei, Q  |e verfasserin  |4 aut 
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