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Transmissible hypovirulent element in isolate Ep-1PN ofSclerotinia sclerotiorum

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Chinese Science Bulletin

Abstract

The cause of virulence decline of hypovirulent isolate Ep-1PN ofSclerotinia sclerotiorum (Lib.) de Bary has been studied through transmitting test and analysing its offsprings derived from single ascospore. When the colony of a normal strain Ep lPNA 183 intermingled with the colony of Ep-lPN, its margin became abnormal, just like EplPN. Cultures isolated from toptip of the colony of Ep-1PNA 183 showed the hypovirulence and its associated properties of Ep-1PN. Moreover, a series of cultures which have characteristics between EplPN and normal strain could be isolated from stipes of Ep-1PN. More than 200 offsprings derived from single ascospore of Ep-1PN were normal strains. According to those results, there exists a transmissible cytoplasmic hypovirulent element in hypovirulent isolate EplPN of S.sclerotiorum.

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Authors and Affiliations

  1. Department of Plant Protection, Huazhong Agricultural University, 430070, Wuhan, China

    Daohong Jiang, Guoqing Li, Yanping Fu, Xianhong Yi & Daoben Wang

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  1. Daohong Jiang
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  2. Guoqing Li
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  3. Yanping Fu
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  4. Xianhong Yi
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  5. Daoben Wang
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Jiang, D., Li, G., Fu, Y. et al. Transmissible hypovirulent element in isolate Ep-1PN ofSclerotinia sclerotiorum . Chin.Sci.Bull. 43, 779–781 (1998). https://doi.org/10.1007/BF02898959

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  • DOI: https://doi.org/10.1007/BF02898959

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