control peg
2.Secondly, from the respect of humoral immunology, the level of circulating immune complex (CIC) through PEG experiment and the amount of complement (CH50) in blood serum were detected. The former test results revealed that the level of CIC was raised, differing significantly from the control group.
3.The result showed that the mutant calluses could retain the relative growth rate at 14.5%,12.8% and 41.8%,when they were planted on the media contain 20% mannitol,1.5% NaCl or 20% PEG-6000,while the control calluses could not grow under each of these stress circumstances.

