Amino acid composition of Astragalus Membranaceus Bge(AMB)was analysed by automatic analyzer.The results showed that the amount of combined amino acids was 8.05%of total weight,the free amino acids was 0.38%and the wh...Amino acid composition of Astragalus Membranaceus Bge(AMB)was analysed by automatic analyzer.The results showed that the amount of combined amino acids was 8.05%of total weight,the free amino acids was 0.38%and the whole amino acids was 8.43%.AMB contains all of the essential amino acids except Trp xysshhant.Besides the therapy effect,the AMB has significant nutrient effect.展开更多
[Objective] The research aimed to study the tissue culture technology and callus induction by radiation mutation of A. membranaceus Bge. [ Method ] With the different parts of Astragalus membranaceus Bge. var. monghol...[Objective] The research aimed to study the tissue culture technology and callus induction by radiation mutation of A. membranaceus Bge. [ Method ] With the different parts of Astragalus membranaceus Bge. var. mongholicus ( Bge. ) Hsiao aseptic seedling as explants ( leaves, cotyledons, hypocotyls) induced callus, and cotyledon and hypocotyls taken by the method of radiation mutation were studied. [ Result]The results showed that the three explants had relatively high callus induced rate in the medium which respectively made up of MS +6-BA 2.0 mg/L + NAA2.0 mg/L, LS +6-BA2.0 mg/L +NAA0.1 mg/L, MS + 6-BA2.0 rng/L + NAA2.0 rag/L; the optimum mutation time of hypocotyls and cotyledons was 15 minutes; the growth of the callus induced from hypocotyls would be better as the mutation time increased, but when it reached a certain time the growth would be weaken, the induction rate also would be reduced. [ Conclusion] This study will provide the scientific reference in tissue culture and mutation breeding of A. membranaceus Bge.展开更多
文摘Amino acid composition of Astragalus Membranaceus Bge(AMB)was analysed by automatic analyzer.The results showed that the amount of combined amino acids was 8.05%of total weight,the free amino acids was 0.38%and the whole amino acids was 8.43%.AMB contains all of the essential amino acids except Trp xysshhant.Besides the therapy effect,the AMB has significant nutrient effect.
文摘[Objective] The research aimed to study the tissue culture technology and callus induction by radiation mutation of A. membranaceus Bge. [ Method ] With the different parts of Astragalus membranaceus Bge. var. mongholicus ( Bge. ) Hsiao aseptic seedling as explants ( leaves, cotyledons, hypocotyls) induced callus, and cotyledon and hypocotyls taken by the method of radiation mutation were studied. [ Result]The results showed that the three explants had relatively high callus induced rate in the medium which respectively made up of MS +6-BA 2.0 mg/L + NAA2.0 mg/L, LS +6-BA2.0 mg/L +NAA0.1 mg/L, MS + 6-BA2.0 rng/L + NAA2.0 rag/L; the optimum mutation time of hypocotyls and cotyledons was 15 minutes; the growth of the callus induced from hypocotyls would be better as the mutation time increased, but when it reached a certain time the growth would be weaken, the induction rate also would be reduced. [ Conclusion] This study will provide the scientific reference in tissue culture and mutation breeding of A. membranaceus Bge.