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选用开花后24d的棉纤维提取原生质膜.用Triton X-100溶解后通过纤维素合酶1( Gossypium hirsuauncellulose synthasel, GhCESA1 )抗体进行免疫共沉淀(Co-Immunoprecipitation,Co-IP),以聚丙烯酰胺凝胶电泳(Sodium dodecyl sulfate polyacrylamide gel electrophoresis, SDS-PAGE )分离免疫共沉淀的产物,用液相色谱-质谱联用仪(Liquid chromatograp