Determining the responses of candidate plants to salt stress is a prerequisite for selecting and breeding suitable plants with high salt tolerance to grow in coastal mudfl at areas with high salinity.Here,2-year cutti...Determining the responses of candidate plants to salt stress is a prerequisite for selecting and breeding suitable plants with high salt tolerance to grow in coastal mudfl at areas with high salinity.Here,2-year cutting seedlings of Ilex purpurea Hassk.(local species)and I.integra Thunb.(introduced species)were grown in pots in a glasshouse and irrigated with a Hoagland-NaCl solution at 0,24,and 48 h.Root samples were collected at 0,1,6,24,and 72 h,and concentration of Na^(+)ion;content of proline,soluble carbohydrate,malondialdehyde(MDA),H_(2)O_(2) and ascorbate;and activity of three key antioxidative enzymes were measured.Roots of I.integra accumulated relatively less Na^(+)and had less membrane lipid peroxidation and H_(2)O_(2) during salt stress,thus indicating a relatively higher salt tolerance than roots of I.purpurea.Values for ascorbate content and antioxidant enzymatic activity suggest that the antioxidant ascorbate and antioxidative catalase may play substantial roles for scavenging reactive oxygen species in I.integra roots during salt treatment.Thus,I.integra is apparently more suitable for growing in local highly saline coastal mudfl ats.展开更多
AIM The purpose is to study phenolic acids from Ilex purpurea Hassk. METHODS The chemical constituents were isolated by silica gel column chromatography, and the chemical structures were elucidated by 1HNMR, 13 CNMR. ...AIM The purpose is to study phenolic acids from Ilex purpurea Hassk. METHODS The chemical constituents were isolated by silica gel column chromatography, and the chemical structures were elucidated by 1HNMR, 13 CNMR. RESULTS Four phenolic acids have been isolated from the ether extract. They have been identified as protocatechuic acid(Ⅰ), protocatechuic aldehyde(Ⅱ), gentisic acid(Ⅲ), and isovanillic acid(Ⅳ). CONCLUSION Compound Ⅲ and Ⅳare isolated from Ilex L. for the first time.展开更多
基金supported by the Key Research and Development Program of Jiangsu Province(Modern agriculture)(BE2018400)by Innovation Capacity Building Plan(Science and Technology Facilities)-Independent Research Fund for Research Institutes of Public Welfare of Jiangsu Province(BM2018022-6)。
文摘Determining the responses of candidate plants to salt stress is a prerequisite for selecting and breeding suitable plants with high salt tolerance to grow in coastal mudfl at areas with high salinity.Here,2-year cutting seedlings of Ilex purpurea Hassk.(local species)and I.integra Thunb.(introduced species)were grown in pots in a glasshouse and irrigated with a Hoagland-NaCl solution at 0,24,and 48 h.Root samples were collected at 0,1,6,24,and 72 h,and concentration of Na^(+)ion;content of proline,soluble carbohydrate,malondialdehyde(MDA),H_(2)O_(2) and ascorbate;and activity of three key antioxidative enzymes were measured.Roots of I.integra accumulated relatively less Na^(+)and had less membrane lipid peroxidation and H_(2)O_(2) during salt stress,thus indicating a relatively higher salt tolerance than roots of I.purpurea.Values for ascorbate content and antioxidant enzymatic activity suggest that the antioxidant ascorbate and antioxidative catalase may play substantial roles for scavenging reactive oxygen species in I.integra roots during salt treatment.Thus,I.integra is apparently more suitable for growing in local highly saline coastal mudfl ats.
文摘AIM The purpose is to study phenolic acids from Ilex purpurea Hassk. METHODS The chemical constituents were isolated by silica gel column chromatography, and the chemical structures were elucidated by 1HNMR, 13 CNMR. RESULTS Four phenolic acids have been isolated from the ether extract. They have been identified as protocatechuic acid(Ⅰ), protocatechuic aldehyde(Ⅱ), gentisic acid(Ⅲ), and isovanillic acid(Ⅳ). CONCLUSION Compound Ⅲ and Ⅳare isolated from Ilex L. for the first time.
