1. Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China, Department of Microbiology, Huaxi Basic Medicine and Forensic College, Sichuan University, Chengdu 610041, People’s Republic of China, and Nan Fang Spiders Breeding Research Institute, Nanning 530012, Guangxi, People’s Republic of China