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Journal of Integrative Agriculture  2012, Vol. 12 Issue (3): 346-358    DOI: 10.1016/S1671-2927(00)8552
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Distribution and Research Advances of Citrus tristeza virus
 Sagheer Atta, ZHOU Chang-yong, ZHOU Yan, CAO Meng-ji
1.National Citrus Engineering Research Center, Southwest University, Chongqing 400712, P.R.China
2.College of Plant Protection, Southwest University, Chongqing 400716, P.R.China
3.Key Laboratory of Horticultural Science for Southern Mountainous Regions, Ministry of Education, Chongqing 400715, P.R.China
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摘要  Citrus tristeza virus (CTV) is one of the most important causal agents of citrus diseases and exists as numerous strains.CTV is replicated in phloem cells of plants within the family Rutaceae and is transmitted by a few of aphid species. CTVepidemics have caused death of millions of citrus trees in many regions all over the world, where the sour orange (Citrusaurantium) was used as rootstock. Also the production of grapefruit (C. paradisi) and sweet orange (C. sinensis) hasbeen affected by CTV strains. CTV gives uplift to three prominent syndromes, namely quick-decline (tristeza), stempittingand seedling-yellows. The disease is graft-transmissible in nature but not seed-transmitted. However, the tristezadisease in most citrus groves was a man-made problem created by the desire of horticulturists to introduce cultivars fromother citrus growing areas. The utmost importance of the disease called for review articles in numbers of plant protection,epidemiology books, citriculture and proceedings. This review collects the information with respects to disease history,distribution host range, virus isolates association, identification and detection, transmission and management; especiallyon the current status of CTV prevailing and controlling in Pakistan. It provides valuable information for CTV disease andits controlling approaches.

Abstract  Citrus tristeza virus (CTV) is one of the most important causal agents of citrus diseases and exists as numerous strains.CTV is replicated in phloem cells of plants within the family Rutaceae and is transmitted by a few of aphid species. CTVepidemics have caused death of millions of citrus trees in many regions all over the world, where the sour orange (Citrusaurantium) was used as rootstock. Also the production of grapefruit (C. paradisi) and sweet orange (C. sinensis) hasbeen affected by CTV strains. CTV gives uplift to three prominent syndromes, namely quick-decline (tristeza), stempittingand seedling-yellows. The disease is graft-transmissible in nature but not seed-transmitted. However, the tristezadisease in most citrus groves was a man-made problem created by the desire of horticulturists to introduce cultivars fromother citrus growing areas. The utmost importance of the disease called for review articles in numbers of plant protection,epidemiology books, citriculture and proceedings. This review collects the information with respects to disease history,distribution host range, virus isolates association, identification and detection, transmission and management; especiallyon the current status of CTV prevailing and controlling in Pakistan. It provides valuable information for CTV disease andits controlling approaches.
Keywords:  Citrus tristeza virus      epidemic      status in Pakistan      control  
Received: 18 March 2011   Accepted:
Fund: 

This study was supported by the National Natural ScienceFoundation of China (30471205), the Special Fund for AgroscientificResearch in the Public Interest, China (200903004-06), the Program for Changjiang Scholars and InnovativeResearch Team in University, China (PCSIRT, IRT0976),and the Chinese Scholarship Council, China (CSC).

Corresponding Authors:  Correspondenc ZHOU Chang-yong, Tel: +86-23-68349601, Fax: +86-23-68349592, E-mail: zhoucy@swu.edu.cn   
About author:  Sagheer Atta, E-mail: sagheer_1328@yahoo.com

Cite this article: 

Sagheer Atta, ZHOU Chang-yong, ZHOU Yan, CAO Meng-ji. 2012. Distribution and Research Advances of Citrus tristeza virus. Journal of Integrative Agriculture, 12(3): 346-358.

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