8Finer JJ. Plant protein secretion on tap[J]. Nat Biotechnol, 1999,17:427.
9Doloressa G, Nikolai VB, Ludmyla GB, et al. Use of plant roots for phytoremediation and molercular farming[J]. Proc Natl Acad Sci USA, 1999,96:5973.
10Sagiya Y, Yamagata H, Udaka S. Direct high-level secretion into the culture medium of tuna growth hormone in biologically active form by Bacillus brevis[J]. Appl Microbiol Biotechnol, 1994,42(2-3):358.
