A disease of chickpea caused by Lettuce necrotic yellows virus.


Chickpea or garbanzo bean (Cicer arietinum L.) is one of several grain legumes being assessed as potential crop species for Queensland. Plants of several cultivars grown in experimental plots at Warwick and Gatton in southeastern Queensland have been affected by a lethal wilt disease caused by a sap-transmissible virus. This note describes the symptoms produced in chickpea, identifies the causal virus, and discusses some epidemiological implications of this disease. Symptoms in chickpea : Field symptoms of the disease in chickpea were most prominent on tip growth and axillary shoots (Fig. 1). These were usually twisted and the newest leaves showed a bleached, necrotic tip burn. The stem and bases of the larger petioles developed a reddish brown necrosis, particularly at the axillary nodes. Leaflet symptoms began as yellow flecks associated with veins but spread to produce general chlorosis and leaflet death. Infected plants frequently wilted and some died. Chickpea plants inoculated in the glasshouse with sap from diseased plants developed symptoms within three weeks. The sequence of symptoms began with curling of one or more apical or axillary shoots, followed by chlorotic streaks in young leaflets, tip and stem necrosis, wilt and often premature death. Identification of the virus: Sap from chlorotic leaves of diseased plants contained characteristic rhabdovirus particles when negatively stained with 1% potassium phosphotungstate, pH 7.0. Particles were bullet-shaped

DOI: 10.1071/APP9830064

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@article{Behncken2011ADO, title={A disease of chickpea caused by Lettuce necrotic yellows virus.}, author={G. M. Behncken}, journal={Australasian Plant Pathology}, year={2011}, volume={12}, pages={64-65} }