Comparison of direct binding polymerase chain reaction with recombinant coat protein antibody based dot-blot immunobinding assay and immunocapture-reverse transcription polymerase chain reaction for the detection of sugarcane streak mosaic virus causing mosaic disease. of sugarcane in India

Hema, M and Savithri, HS and Sreenivasulu, P (2003) Comparison of direct binding polymerase chain reaction with recombinant coat protein antibody based dot-blot immunobinding assay and immunocapture-reverse transcription polymerase chain reaction for the detection of sugarcane streak mosaic virus causing mosaic disease. of sugarcane in India. In: Current Science, 85 (12). pp. 1774-1777.

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Abstract

Direct-binding polymerase chain reaction (DB-PCR) test was developed for the detection of sugarcane streak mosaic virus (SCSMV-AP), a member of the new, undescribed genus in the family Potyviridae. Its sensitivity levels were compared to recombinant coat protein antibody-based tests like dot-blot immunobinding assay (DBIA) and immunocapture reverse transcription-PCR (IC-RT-PCR) to detect virus in purified preparations and in sugarcane leaf extracts. In DBIA, DB-PCR and IC-RT-PCR, the virus was detected up to 5 ng, 0.01 ng and 0.001 ng in purified virus preparations and 10(-2), 10(-3) and 10(-4) dilutions in infected sugarcane leaf extracts, respectively. When compared to DBIA, IC-RT-PCR appears to be 5000-fold and 100-fold more sensitive with respect to purified virus and infected leaf samples respectively. DB-PCR is 10-fold less sensitive when compared to IC-RT-PCR. Further, shelf-life of recombinant antibody-coated tubes stored at 4degreesC was checked; it was found that they can be used for PCR up to one month. These PCR-based tests could be useful to screen sugarcane germplasm and in breeding and quarantine programmes.

Item Type:	Journal Article
Publication:	Current Science
Publisher:	Indian Academy Of Sciences
Additional Information:	Copyright of this article belongs to Indian Academy Of Sciences.
Department/Centre:	Division of Biological Sciences > Biochemistry
Date Deposited:	28 May 2009 10:47
Last Modified:	19 Sep 2010 04:54
URI:	http://eprints.iisc.ac.in/id/eprint/16995

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