Field insect population survey indicated that the principal natural predation enemies of cotton bollworm ( Helicoverpa armigera Hubner ) were Eringonidium graminicola Sundevall, Adonia variegata Goeze, Nabis sinoferus...Field insect population survey indicated that the principal natural predation enemies of cotton bollworm ( Helicoverpa armigera Hubner ) were Eringonidium graminicola Sundevall, Adonia variegata Goeze, Nabis sinoferus Hsiao.The results from experiments showed that the amount of prey consumed of these principal natural enemies increased when the density of prey rised,and decreased when the density of natural enemies increased. The predation function response fitted Holling’s predation response equationⅡ,and could be fit with the Disk展开更多
Objective:Dichocarpum auriculatum,an endangered perennial herb,is endemic to China and has been used as folk medicines for the treatment of cough,hepatitis,scrofula,and epilepsy.However,there is no phytochemical repor...Objective:Dichocarpum auriculatum,an endangered perennial herb,is endemic to China and has been used as folk medicines for the treatment of cough,hepatitis,scrofula,and epilepsy.However,there is no phytochemical report on this herbal so far.For the resource development and protective importance of this endangered medicinal plant,a phytochemical study was undertaken.Methods:The chemical constituents were purified by silica gel column,Sephadex LH-20 column,and semi-preparative reversed phase HPLC.NMR and MS spectra were used for structural identification.Results:Thirteen compounds were isolated from D.auriculatum.Their structures were characterized as jatrorrhizine(1),berberine(2),steponine(3),magnoflorine(4),coclauril(5),menisdaurin(6),menisdaurilide(7),aquilegiolide(8),(6 R,9 S)-3-oxo-α-ionol-β-D-glucopyranoside(9),blumenol C glucoside(10),palmitic acid(11),dibutylphthalate(12),and auriculatum A(13).Conclusion:Compound 13 is a new diester terephthalate derivative.All the compounds are obtained from the genus Dichocarpum for the first time,and compounds 9 and 10 have potential chemotaxonomic significance to the genus Dichocarpum.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
This paper aims to explore Talwanese people＇s memories of war based on Hsiao Chin Tui＇s novel The Doll of Fate which describes the later period when Japan colonized Taiwan and the youth of Taiwan serve in the milita...This paper aims to explore Talwanese people＇s memories of war based on Hsiao Chin Tui＇s novel The Doll of Fate which describes the later period when Japan colonized Taiwan and the youth of Taiwan serve in the military voluntarily. The voluntary is not only influenced by kominka movement, but also is the effect of Japan＇s war discourse of protecting Asia from the fight of Western countries. However, no matter in schools or society, discrimination in colony leads youth＇s anger and forms an invisible power of the discourse of anti-war. Youth in Taiwan gradually doubt of the war idea of Japan, including the fear of death. In this paper, I define the situation as ＂the war of heart＂. This paper focuses on the changing of character＇s mind and spirit. This paper also observes the changing process of the identification of race and mother land. The observation will be a basis to think about the historical meaning of war experience of mobilization and memories of Talwanese people during the colonial period by Japan.展开更多
文摘Field insect population survey indicated that the principal natural predation enemies of cotton bollworm ( Helicoverpa armigera Hubner ) were Eringonidium graminicola Sundevall, Adonia variegata Goeze, Nabis sinoferus Hsiao.The results from experiments showed that the amount of prey consumed of these principal natural enemies increased when the density of prey rised,and decreased when the density of natural enemies increased. The predation function response fitted Holling’s predation response equationⅡ,and could be fit with the Disk
基金funded by the CAMS Innovation Fund for Medical Sciences(CIFMS)ID:2016-I2M-1012Major Scientific and Technological Special Project for“Significant New Drugs Creation”(No.2018ZX09711001-008007).
文摘Objective:Dichocarpum auriculatum,an endangered perennial herb,is endemic to China and has been used as folk medicines for the treatment of cough,hepatitis,scrofula,and epilepsy.However,there is no phytochemical report on this herbal so far.For the resource development and protective importance of this endangered medicinal plant,a phytochemical study was undertaken.Methods:The chemical constituents were purified by silica gel column,Sephadex LH-20 column,and semi-preparative reversed phase HPLC.NMR and MS spectra were used for structural identification.Results:Thirteen compounds were isolated from D.auriculatum.Their structures were characterized as jatrorrhizine(1),berberine(2),steponine(3),magnoflorine(4),coclauril(5),menisdaurin(6),menisdaurilide(7),aquilegiolide(8),(6 R,9 S)-3-oxo-α-ionol-β-D-glucopyranoside(9),blumenol C glucoside(10),palmitic acid(11),dibutylphthalate(12),and auriculatum A(13).Conclusion:Compound 13 is a new diester terephthalate derivative.All the compounds are obtained from the genus Dichocarpum for the first time,and compounds 9 and 10 have potential chemotaxonomic significance to the genus Dichocarpum.
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.
文摘This paper aims to explore Talwanese people＇s memories of war based on Hsiao Chin Tui＇s novel The Doll of Fate which describes the later period when Japan colonized Taiwan and the youth of Taiwan serve in the military voluntarily. The voluntary is not only influenced by kominka movement, but also is the effect of Japan＇s war discourse of protecting Asia from the fight of Western countries. However, no matter in schools or society, discrimination in colony leads youth＇s anger and forms an invisible power of the discourse of anti-war. Youth in Taiwan gradually doubt of the war idea of Japan, including the fear of death. In this paper, I define the situation as ＂the war of heart＂. This paper focuses on the changing of character＇s mind and spirit. This paper also observes the changing process of the identification of race and mother land. The observation will be a basis to think about the historical meaning of war experience of mobilization and memories of Talwanese people during the colonial period by Japan.
