New closterovirus in ‘Redglobe’ grape causes decline of grafted plants

Krag, C; Luvisi, D; Rowhani, A; Uyemoto, J

New closterovirus in ‘Redglobe’ grape causes decline of grafted plants

Authors

C. Randy Krag
Donald Luvisi
Adib Rowhani
Jerry K. Uyemoto

Authors Affiliations

C.R. Krag is pest control advisor in private practice; D. Luvisi is retired Farm Advisor, UC Cooperative Extension, Kern County; A. Rowhani is Specialist, Department of Plant Pathology, UC Davis; J.K. Uyemoto is Research Plant Pathologist, U.S. Department of Agriculture, stationed in Department of Plant Pathology, UC Davis.

Publication Information

Hilgardia 55(4):28-31. DOI:10.3733/ca.v055n04p28. July 2001.

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Abstract

In California, first-generation table grape vineyards were planted on their own roots. But in recent years growers have been replanting onto acreage previously in grapes more often. Grafted plants are being sought to overcome nematodes and other site-related problems. We investigated the etiology of the decline and death of ‘Redglobe’ table grape scions propagated on different rootstocks, using a series of greenhouse and field experiments, and reverse transcriptase-polymerase chain reaction (RT-PCR) assays. We determined that a specific graft-transmissible agent was closely associated with declining young grapevines. The ‘Redglobe’ closterovirus that we identified was given the trivial name Grapevine rootstock stem lesion associated virus (GRSLaV).

References

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Rowhani A, Zhang Y-P, Golino DA, Uyemoto JK. Isolation and partial characterization of two new viruses from grapevine. In: Proceedings of the 13th International Council for the Study of Viruses and Virus-like Diseases of the Grapevine.. 2000. Adelaide, Australia: 82.

Uyemoto JK, Rowhani A, Luvisi D. An association of rootstock stem lesions in Vitis species and different graft-transmissible agents. In: Proceedings of the 13th ICVG Meetings.. 2000. Adelaide, Australia: p. 83-84.

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