文献类型： 外文期刊
第一作者： Fan, X. P.
作者： Fan, X. P.;Wang, X.;Tian, J. B.;Paltrinieri, S.;Bertaccini, A.;Petriccione, M.;Pastore, M.
作者机构：
关键词： Ziziphus jujube Mill.;PCR/RFLP analyses;jujube witches'-broom
期刊名称：PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON ENHANCING ECONOMIC AND ENVIRONMENTAL SUSTAINABILITY OF FRUIT PRODUCTION IN A GLOBAL ECONOMY
ISSN： 0567-7572
年卷期： 2008 年 772 期
页码：
收录情况： SCI
摘要： Jujube witches'-broom phytoplasma disease is the most dangerous jujube disease in China. Samples from symptomatic and asymptomatic green shoots of Suanzao rootstock, and cv. Lang-zao, together with samples from hard shoots of cv. Lang-zao and leaves of cv. La-jiao-zao tested positive for jujube witches' broom phytoplasma in direct or in nested PCR amplification with phytoplasma specific primers. Amplification of rp protein of the pathogen provided amplification only for those samples which resulted positive in direct PCR. RFLP analyses of PCR products confirmed that phytoplasmas infecting jujube belong to the 16SrRNA group V-B, rp subgroup C. Results indicate that the phytoplasma over-winters in aerial tree parts and is present also in asymptomatic parts of infected trees. Shoots from symptomatic and asymptomatic 'Li-zao' and 'Hu-Lu-Zao' plants were grafted on diverse rootstocks to propagate the Chinese gene pool in Italy and to test the infectivity of phytoplasma strains. The death of the plants obtained by cleft-grafting of symptomatic shoots as well as the difficulty to obtain patch grafting with phytoplasma-infected shoots didn't allow an investigation on pathogen transmission.
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