Improved Powdery Mildew Resistance of Transgenic Nicotiana benthamiana Overexpressing the Cucurbita moschata CmSGT1 Gene oleh Wei-Li Guo, Wei-Li Guo, Bi-Hua Chen, Bi-Hua Chen, Yan-Yan Guo, Yan-Yan Guo, He-Lian Yang, He-Lian Yang, Jin-Yan Mu, Jin-Yan Mu, Yan-Li Wang, Yan-Li Wang, Xin-Zheng Li, Xin-Zheng Li, Jun-Guo Zhou, Jun-Guo Zhou