Whitefly-mediated transmission of cotton leaf curl Multan betasatellite: evidence for betasatellite encapsidation in coat protein of helper begomoviruses

Whitefly-mediated transmission of cotton leaf curl Multan betasatellite: evidence for... Cotton leaf curl Multan betasatellite (CLCuMB) is responsible for symptom expression of a devastating disease of cotton in the Indian subcontinent. CLCuMB depends on helper virus replication-associated protein for its replication and on viral coat protein (CP) for its encapsidation. However, no direct evidence of encapsidation of CLCuMB in viral CP has been available. In the present study, non-viruliferous whiteflies were placed on tomato plants that had been agroinoculated with infectious clones of an Iranian isolate of tomato yellow leaf curl virus (TYLCV-(Ab)) and CLCuMB for an acquisition access period of 72 h and then transferred to healthy tomato seedlings at the 3- to 4-leaf stage. Typical symptoms of TYLCV-(Ab) appeared on inoculated seedlings 30-45 days post-inoculation. The presence of TYLCV-(Ab) and CLCuMB DNAs in symptomatic test plants and viruliferous whiteflies was confirmed by PCR analysis using specific primers and DIG Southern blotting. Furthermore, the possibility of CLCuMB DNA encapsidation in TYLCV-(Ab) CP within infected plants was examined by immunocapture PCR. The results showed that CLCuMB DNA was encapsidated in TYLCV-(Ab) CP. Whitefly-mediated transmission of CLCuMB in the presence of helper virus is additional evidence for encapsidation of CLCuMB by TYLCV-(Ab) CP. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Whitefly-mediated transmission of cotton leaf curl Multan betasatellite: evidence for betasatellite encapsidation in coat protein of helper begomoviruses

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Publisher
Springer Vienna
Copyright
Copyright © 2013 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-012-1448-y
Publisher site
See Article on Publisher Site

Abstract

Cotton leaf curl Multan betasatellite (CLCuMB) is responsible for symptom expression of a devastating disease of cotton in the Indian subcontinent. CLCuMB depends on helper virus replication-associated protein for its replication and on viral coat protein (CP) for its encapsidation. However, no direct evidence of encapsidation of CLCuMB in viral CP has been available. In the present study, non-viruliferous whiteflies were placed on tomato plants that had been agroinoculated with infectious clones of an Iranian isolate of tomato yellow leaf curl virus (TYLCV-(Ab)) and CLCuMB for an acquisition access period of 72 h and then transferred to healthy tomato seedlings at the 3- to 4-leaf stage. Typical symptoms of TYLCV-(Ab) appeared on inoculated seedlings 30-45 days post-inoculation. The presence of TYLCV-(Ab) and CLCuMB DNAs in symptomatic test plants and viruliferous whiteflies was confirmed by PCR analysis using specific primers and DIG Southern blotting. Furthermore, the possibility of CLCuMB DNA encapsidation in TYLCV-(Ab) CP within infected plants was examined by immunocapture PCR. The results showed that CLCuMB DNA was encapsidated in TYLCV-(Ab) CP. Whitefly-mediated transmission of CLCuMB in the presence of helper virus is additional evidence for encapsidation of CLCuMB by TYLCV-(Ab) CP.

Journal

Archives of VirologySpringer Journals

Published: Jan 1, 2013

References

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