The complex,C30H44N3O16DyS3,Dy2（H2O）4（Ts-β-AlaH）6·4H2O （Ts-β-AlaH=N-p-tolysulfonyl-β-Alanine）was synthesized and characterized by elemental analysis,IR,and X-ray diffraction study.The crydstal is monocli...The complex,C30H44N3O16DyS3,Dy2（H2O）4（Ts-β-AlaH）6·4H2O （Ts-β-AlaH=N-p-tolysulfonyl-β-Alanine）was synthesized and characterized by elemental analysis,IR,and X-ray diffraction study.The crydstal is monoclinic sydstem with P21/n space group.The cell parameters are:a=9.536（2）*!,b=18.981（3）*!,c=22.932（6）*!,β=100.15（2）°,Z=4,Mr=961,DC=2.082/cm3,V=2462.9（10）*!3.The structre of the complex can be viewed as a one-dimensional infinite chain.The Dysprosium ion is eight-coordinated with a geometry of distorted square antiprism.The antibacterial activity of the complex and N-p-tolysulfonyl-β-Alanine was tested.The results in dicated that the complexes were more bacteriostatically active than the ligand.展开更多
A study was conducted to explore the defense response in woody plants after insect herbivory. The activities of two enzymes, lipoxygenase （LOX）, a key enzyme ofjasmonate （JA） pathway, and phenylalanine ammonia lya...A study was conducted to explore the defense response in woody plants after insect herbivory. The activities of two enzymes, lipoxygenase （LOX）, a key enzyme ofjasmonate （JA） pathway, and phenylalanine ammonia lyase （PAL）, a rate-limiting enzyme of phenyl- propanoid pathway, were measured in the leaves of one-year-old poplar （Populus simonii × P. pyramidalis ＇Opera 8277＇） cuttings after Clostera anachoreta larvae attack. The results show that the increased activities of LOX and PAL were found not only in the leaves wounded by C. anachoreta larvae but also in their tipper systemic leaves, indicating that JA and phenylpropanoid pathways were activated, and the defense response was stimulated systemically. The increase in LOX and PAL activities in neighboring intact poplar cuttings sug- gested that there exists the interplant communication between poplar plants mediated by the herbivore-induced volatiles. Methyl jasmonate （MeJA） was also proved to be an airborne signal to induce defense response in P simonii × P pyramidalis ＇Opera 8277＇ cuttings.展开更多
文摘The complex,C30H44N3O16DyS3,Dy2（H2O）4（Ts-β-AlaH）6·4H2O （Ts-β-AlaH=N-p-tolysulfonyl-β-Alanine）was synthesized and characterized by elemental analysis,IR,and X-ray diffraction study.The crydstal is monoclinic sydstem with P21/n space group.The cell parameters are:a=9.536（2）*!,b=18.981（3）*!,c=22.932（6）*!,β=100.15（2）°,Z=4,Mr=961,DC=2.082/cm3,V=2462.9（10）*!3.The structre of the complex can be viewed as a one-dimensional infinite chain.The Dysprosium ion is eight-coordinated with a geometry of distorted square antiprism.The antibacterial activity of the complex and N-p-tolysulfonyl-β-Alanine was tested.The results in dicated that the complexes were more bacteriostatically active than the ligand.
基金supported by the Pro-gramme for Changjiang Scholars and the Innovative Research Team in Universities of China (PCSIRT0607)by the National Natural Science Foundation of China (30871727+2 种基金 30872037)the National Key Project of Scientific and Technical Supporting Programmes Funded by the Ministry of Science & Technology of China (2006BAD01A15 2006BAD24B04)
文摘A study was conducted to explore the defense response in woody plants after insect herbivory. The activities of two enzymes, lipoxygenase （LOX）, a key enzyme ofjasmonate （JA） pathway, and phenylalanine ammonia lyase （PAL）, a rate-limiting enzyme of phenyl- propanoid pathway, were measured in the leaves of one-year-old poplar （Populus simonii × P. pyramidalis ＇Opera 8277＇） cuttings after Clostera anachoreta larvae attack. The results show that the increased activities of LOX and PAL were found not only in the leaves wounded by C. anachoreta larvae but also in their tipper systemic leaves, indicating that JA and phenylpropanoid pathways were activated, and the defense response was stimulated systemically. The increase in LOX and PAL activities in neighboring intact poplar cuttings sug- gested that there exists the interplant communication between poplar plants mediated by the herbivore-induced volatiles. Methyl jasmonate （MeJA） was also proved to be an airborne signal to induce defense response in P simonii × P pyramidalis ＇Opera 8277＇ cuttings.
