אסיף מאגר המחקר החקלאי

Detection of avocado sunblotch viroid (ASBV) by dot-spot self-hybridization with a [32P]-labelled ASBV-RNA

Year:

1983

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Volume :

2

Co-Authors:

Rosner, A., Virus Laboratory, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Spiegel, S., Virus Laboratory, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Alper, M., Virus Laboratory, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Bar-Joseph, M., Virus Laboratory, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel

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Abstract:

RNA was extracted from plants infected with avocado sunblotch viroid (ASBV) and was analyzed by electrophoresis in polyacrylamide gel. The ASBV related fraction was eluted from the gel, labelled with [32P] using polynucleotide kinase and used as a probe for hybridization with a purified ASBV-RNA preparation dot spotted on nitrocellulose paper. Positive self-hybridization indicated a high degree of internal complementarity. Dot spots of whole cell RNA and of leaf sap from ASBV infected plants were shown to hybridize with the labelled probe. This hybridization procedure proved to be 16-64 times more sensitive in diagnosing ASBV when compared with polyacrylamide gel analysis. © 1983 Martinus Nijhoff/Dr W. Junk Publishers.

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