ANALYSES OF ELECTROPHORETIC PATTERN OF AMYLOPLAST PROTEIN AND TOTAL PROTEIN IN PLANT STORE ORGANS Quick Detection of Citrus exocortis viroid (CEVd) by One-step RT-PCR Optimization of extraction technology of two immune active proteins from Astragalus membranaceus var. mongholicus Quick Detection of Citrus exocortis viroid (CEVd) by One-step RT-PCR