石河子地区寄生性杂草菟丝子的种类鉴定

Species Identification of Parasitic Weed Cuscuta in Shihezi Area

摘要: 目的明确石河子市及周边植物地区上寄生性杂草菟丝子的种类,为其科学防除、有效监控提供依据.方法在石河子市内及其周边不同寄主上采集菟丝子茎、花和成熟、饱满的种子,采用形态学特征观察及ITS、rbcL、trnL-F序列分析对其进行鉴定.结果经形态学特征观察结合ITS、rbcL、trnL-F序列分析结果将37份菟丝子样品鉴定为2个种,分别为单柱菟丝子(Cuscuta monogyna)和田野菟丝子(Cuscuta campestris).结论单柱菟丝子和田野菟丝子是新疆石河子地区的主要危害种.

Abstract: Objective In order to identify the species of Cuscuta in Shihezi area and its surroundings in the hope of providing the basis for scientific control and monitoring of Cuscuta.MethodStems,flowers and mature,plump seeds of Cuscuta were collected from different host species in Shihezi area and its surrounding and morphology characteristics and ITS,rbcL,trnL-Fgene sequences were used to identify Cuscuta.ResultA total of 37 samples of Cuscuta were identified as two Cuscuta species,Cuscuta campestris and Cuscuta monogyna based on the result of morphology and ITS,rbcL,trnL-Fgene sequences analysis.ConclusionThe main Cuscuta species in Shihezi are Cuscuta campestris and Cuscuta monogyna.