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RISS 인기검색어
- 검색키워드
- 저자 : Fengting Zhang (검색결과 3 건)
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Li, Qingwei,Chen, Fang,Zhao, Weili,Xu, Mingxiu,Fang, Benjie,Zhang, Yuelong,Duo, Liping,Jin, Yuqi,Sang, Fengting Korean Chemical Society 2007 Bulletin of the Korean Chemical Society Vol.28 No.10
Using solid inorganic peroxides (including Li2O2, Na2O2, SrO2 and BaO2) as starting materials, three reaction paths for singlet oxygen (1O2) production were developed and studied. Their 1O2 emission spectra in the near- IR region and visible region from these reaction paths were simultaneously recorded by a near-IR sensitive Optical Multichannel Analyzer and a visible sensitive Optical Spectrum Analyzer, respectively. The comparison of their 1O2 emission spectra indicated that: (1) in term of the efficiency for 1O2 production, the gasliquid- solid reaction path (in which Cl2 or HCl and H2O reacted with the solid inorganic peroxides suspension in CCl4) was prior to the gas-solid reaction path (in which Cl2 or HCl reacted with the solid inorganic peroxides suspension in CCl4), but was inferior to the gas-liquid reaction path (in which Cl2 or HCl reacted with the solid inorganic peroxides solution in H2O or D2O); (2) the alkali metal peroxides (such as Li2O2 and Na2O2) was prior to the alkaline earth metal peroxides (such as SrO2 and BaO2) as the solid reactants, and Cl2 was favorable than HCl as the gas reactant in efficiency for 1O2 production in these reaction paths.
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Qingwei Li*,Fang Chen,Weili Zhao,Mingxiu Xu,Benjie Fang,Yuelong Zhang,Liping Duo,Yuqi Jin,Fengting Sang 대한화학회 2007 Bulletin of the Korean Chemical Society Vol.28 No.10
Using solid inorganic peroxides (including Li2O2, Na2O2, SrO2 and BaO2) as starting materials, three reaction paths for singlet oxygen (1O2) production were developed and studied. Their 1O2 emission spectra in the near-IR region and visible region from these reaction paths were simultaneously recorded by a near-IR sensitive Optical Multichannel Analyzer and a visible sensitive Optical Spectrum Analyzer, respectively. The comparison of their 1O2 emission spectra indicated that: (1) in term of the efficiency for 1O2 production, the gas-liquid-solid reaction path (in which Cl2 or HCl and H2O reacted with the solid inorganic peroxides suspension in CCl4) was prior to the gas-solid reaction path (in which Cl2 or HCl reacted with the solid inorganic peroxides suspension in CCl4), but was inferior to the gas-liquid reaction path (in which Cl2 or HCl reacted with the solid inorganic peroxides solution in H2O or D2O); (2) the alkali metal peroxides (such as Li2O2 and Na2O2) was prior to the alkaline earth metal peroxides (such as SrO2 and BaO2) as the solid reactants, and Cl2 was favorable than HCl as the gas reactant in efficiency for 1O2 production in these reaction paths.
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Functional Analysis of Wheat TaPaO1 Gene Conferring Pollen Sterility Under Low Temperature
Changping Zhao,Guoliang Yuan,Yukun Wang,Shaohua Yuan,Peng Wang,Wenjing Duan,Jianfang Bai,Hui Sun,Na Wang,Fengting Zhang,Liping Zhang 한국식물학회 2018 Journal of Plant Biology Vol.61 No.1
Thermosensitive male sterility plays an important role in wheat fertility and production. As a key enzyme for chlorophyll degradation, pheophorbide a oxygenase (PaO) can suppress cell death in plants. We cloned the wheat gene TaPaO1 from the thermosensitive genetic male sterile (TGMS) line BS366; it encodes a typical PaO protein, containing a conserved Rieske [2Fe-2S] iron–sulphur motif, a mononuclear non-heme iron-binding motif, and a C-terminal CxxC motif. TaPaO1 was expressed in all tissues and was upregulated during the meiosis stage of BS366 anthers under low temperature. Subcellular localization of TaPaO1 specifically labelled the surrounding of chloroplasts. TaPaO1 regulated by RD29A promoter which responded to low temperature led to pollen sterility in transgenic tobacco. Expression analysis showed that TaPaO1 exhibited a higher level of expression in the anther than in other tissues in transgenic tobacco plants during low temperature treatment. We propose that the higher senescence-related activity of TaPaO1 may lead to the cell death of anthers, which happens at an early developmental stage under low temperature. These results provide new insights into the function of PaO during the early developmental stage of anthers. PaO is closely related to cell death regardless of whether it exhibits increased activity or inactive.
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