This study was supported by the grants from National Nature Science Foundation of China to Aibing WU81201672;Science and Technology Planning Project of Guangdong Province to Aibing WU2016A020215228;Science and Technology Planning Project of Zhanjiang City to Zhixiong YANG No.2015A01035.本研究受国家自然基金项目81201672;广东省省级科技计划项目2016A020215228;湛江市科技计划项目2015A01035