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| 1 | FERONIA Receptor Kinase Controls Seed Size in Arabidopsis thaliana显示文摘Dear Editor, Plants have evolved elaborate mechanisms by which cell elongation regulation is coupled to the environmental signals.The plasma membrane receptor kinase FERONIA (FER) has emerged as an important regulatory node in controlling cell elongation and hormone crosstalk (Guo et al.,2009;Deslauriers and Larsen,2010;Duan et al.,2010;Yu et al.,2012).Initially reported to inhibit pollen tube elongation during fertilization (Escobar-Restrepo et al.,2007),FER has been since found to promote cell elongation in leaves and root hairs (Guo et al.,2009;Duan et al.,2010). | Feng Yu Jian Li Yuan Huang Li Liu Dongping Li Liangbi Chen Sheng Luan | 2014 | Molecular Plant2014，7，5： | 16 |
| 2 | New structure model of oxygen-evolving center and mechanism for oxygen evolution in photosynthesis显示文摘So far, many important questions and problems concerning the structure and mechanism of photosynthetic oxygen evolution are still unsolved. On the basis of recent achievements in this field, a new structure model is proposed whereby two H2O molecules bind asymmetrically to two manganese ions (Mn1Ⅱ and Mn4Ⅲ) at the open end of 'C' shaped cluster and keep rather large distance. Two histidine residues coordinate to the other two manganese ions in higher oxi- | Chunxi Zhang Jie Pan Liangbi Li Tingyun Kuang | 1999 | Chinese Science Bulletin1999，44，24： | 6 |
| 3 | Ectopic expression of fungal EcGDH improves nitrogen assimilation and grain yield in rice显示文摘NADP(H)-dependent glutamate dehydrogenases(GDH) in lower organisms have stronger ammonium affinity than those in higher plants. Here we report that transgenic rice overexpressing the EcGDH from Eurotium cheralieri exhibited significantly enhanced aminating activities. Hydroponic and field tests showed that nitrogen assimilation efficiency and grain yields were markedly increased in these transgenic plants, especially at the low nitrogen conditions.These results suggest that EcGDH may have potential to be used to improve nitrogen assimilation and grain yield in rice. | Dongying Tang Yuchong Peng Jianzhong Lin Changqing Du Yuanzhu Yang Dan Wang Cong Liu Lu Yan Xiaoying Zhao Xia Li Liangbi Chen Xuanming Liu | 2018 | Journal of Integrative Plant Biology2018，60，2： | 4 |
| 4 | 33 ku protein associated several polypeptides with nearly the same molecular weight but not the same isoelectric point显示文摘The 33 ku protein, prepared from NaCI-treated PSII particles, has shown an single band by SDS-PAGE. After being dialyzed against the low-osmotic medium at 4癈, it has been found that the 33 ku protein degraded into several small fragments. This result suggests that the preparations of 33 ku protein probably contain some latent proteinases. it has also been found, by the 2-D electrophoresis and IEF, that the preparations of 33 ku protein not dialyzed against the low-osmotic medium contain several polypeptides with nearly the same molecular weight but not the same isoelectric point as the 33 ku protein. | Hui Yu Bin Kang Jie Wei Liangbi Li Tingyun Kuang | 2000 | Chinese Science Bulletin2000，45，1： | 3 |
| 5 | Positional distribution of fatty acids on the glycerol backbone during the biosyn-thesis of glycerolipids in Ectocarpus fasciculatus显示文摘The biosynthesis of glycolipids in E.fascicula-tus was studied by 14C label and chase. The fatty acids in sulphoquinovosyl diacylglycerol (SQDG) were almost 16-car-bon and 18-carbon ones. In addition to the two fatty acids, monogalactosyl diacylglycerol (MGDG) and digalactosyl diacylglycerol (DGDG) contained 8.5 mol% and 31.0 mol% of eicosapentaenoic acid (20 : 5), respectively, and this fatty acid was usually distributed in the sn-1 position of the glyc-erol backbone. When plants were incubated with [2-14C] acetate, differences existed in the positional distribution of the labeled fatty acids in sn-1 and sn-2 among the three glycerolipids. In SQDG, 14C-labeled fatty acids were distributed uniformly in the sn-1 and sn-2 positions. In DGDG, 14C-labeled fatty acids were mainly distributed in the sn-2 position. In MGDG, the radioactivity of fatty acids in sn-1 position was far greater than that in sn-2 position after a 30 min pulse label, and the difference in radioactivity between the two positions | XU Yinong WANG Zeneng VAN Xiaojun LIN Wei LI Liangbi KUANG Tingyun | 2002 | Chinese Science Bulletin2002，47，21： | 3 |
| 6 | Thermal stability of oxygen evolution in photosystem Ⅱ core complex in the presence of digalactosyl diacylglycerol显示文摘The influence of digalactosyldiacylglycerol (DGDG), one of the photosynthetic membrane lipids, on heat inactivation of the process of oxygen evolution has been studied in vitro in photosystem Ⅱ(PS Ⅱ) core complex. It was found that the temperature of semi-inactivation of oxygen evolution in the complex increased from 40.0 to about 43.0℃ in the presence of DGDG with 5-min heat treatment in the dark. Furthermore, when PS Ⅱ core complex was incubated for 5 min at 45.0℃, the oxygen evolution in the complex was completely lost, whilst the DGDG-complexed PS Ⅱ core complex still retained a 16% of activity (100% for 25.0℃). In addition, a 1-h incubation at 38.0℃ inactivated absolutely the oxygen evolution for the PS Ⅱ core complex. By contrast, there remained about 20% of activity (zero time for 100%) for the complex in the presence of DGDG under the same condition. These results indicate a new role of DGDG in the protection of PS Ⅱ core complex against the deleterious effects of temperature. It was | YANG Zhenle, LI Liangbi & KUANG TingyunPhotosynthesis Research Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China | 2002 | Chinese Science Bulletin2002，47，24： | 3 |
| 7 | The structural model of P_(680)显示文摘INVESTIGATION on photosystem Ⅱ (PS Ⅱ ) of high plants is one of the most important aspects in photosynthesis research. P680 is the primary electron donor in reaction center of PS Ⅱ , which is a crucial component for sun-light conversion and water split in PS Ⅱ. So study on its structure and function is very important. So far, a few structural models of P(680) have been proposed. Typical models are monomolecular model and bimolecular model. There are two types of bimolecular model: bimolecular parallel model and bimolecular angular model. (Note: There is a kind of multiple model. Because it can be obtained from the organization of two bimolecular models, this model is considered as the same sort of bi- | ZHANG Chunxi , ZHANG Xiaodong , LI Liangbi , ZHANG Qiyuan , ZHANG Xingkang and KUANG TingyunPhotosynthesis Research Center and Laboratory of Photosynthesis Basic Research , Institute of Botany , Chinese Academy of Sciences , Beijing 100093, China State Key Laboratory for Structural Chemistry of Unstable and Stable Species , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100080, China | 1999 | Chinese Science Bulletin1999，44，9： | 3 |
| 8 | Residual stress relaxation in typical weld joints and its effect on fatigue and crack growth显示文摘Many factors influence the fatigue and crack growth behavior of welded joints. Some structures often undergo fairly large static loading before they enter service or variable amplitude cyclic loading when they are in service. The combined effect of both applied stress and high initial residual stress is expected to cause the residual stresses relaxation. Only a few papers seem to deal with appropriate procedures for fatigue analysis and crack growth by considering the combined effect of variable amplitude cyclic loading with residual stresses relaxation. In this article, some typical welded connections in ship-shaped structures are investigated with 3-D elastic-plastic finite element analysis. The effect of residual stress relaxation, initial residual stress, and the applied load after variable amplitude cyclic loading is revealed, and a formula for predicting the residual stress at hot spot quantitatively is proposed. Based on the formula, an improved fatigue procedure is introduced. Moreover, crack growth of typical weld joints considering residual stresses relaxation is studied. | Liangbi LI Zhengquan WAN Zili WANG Chunyan JI | 2009 | Acta Metallurgica Sinica(English Letters)2009，22，3： | 3 |
| 9 | FERONIA receptor kinase pathway suppresses abscisic acid signaling in Arabidopsis by activating ABI2 phosphatase显示文摘 | Feng Yu Lichao Qian Candida Nibau Qiaohong Duan Daniel Kita Kathryn Levasseur Xiaoqian Li Changqing Lu Hui Li Congcong Hou Legong Li Bob B. Buchanan Liangbi Chen Alice Y. Cheung Dongping Li Sheng Luan | 2012 | Proceedings of the National Academy of Sciences2012，，36： | 1 |
| 10 | Depletion of phosphatidyl-glycerol head-group induces changes in oxygen evolution and protein secondary structures of photosystem Ⅱ显示文摘The techniques of oxygen electrode polarogra-phy and Fourier transform infrared (FT-IR) spectroscopy were employed to explore the roles of polar head-group of phosphatidylglycerol (PG) molecules in the functional and structural aspects of photosystem Ⅱ (PS Ⅱ) through enzymatic approach. It was shown that the depletion of PG by treatment of phospholipase C (PLC) on PS Ⅱ particles caused the inhibition of oxygen evolving activity in PS Ⅱ. This effect also gave rise to changes in the protein secondary structures of PS Ⅱ, that is, an increase in a-helical conformation which is compensated by the loss of p-strand structures. It revealed that the head-group of PG molecules plays an important structural role in the maintenance of normal structure of PS Ⅱ proteins, which is required to maintain the appropriate physiological activity of the PS Ⅱ complex such as the oxygen evolving activity. It is suggested that there most probably exist hydrogen-bonding interactions between PG molecules and PS Ⅱ proteins. | YANG Zhenle, WANG Zeneng, JIANG Guizhen, XU Yinong, LI Liangbi & KUANG TingyunPhotosynthesis Research Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China | 2002 | Chinese Science Bulletin2002，47，10： | 1 |
| 11 | Mitochondrial DNA genetic polymorphism in thirteen rice cytoplasmic male sterile lines显示文摘 | Ji Luan Tianran Liu Weiqi Luo Wen Liu Minqi Peng Wenjia Li Xiaojun Dai Manzhong Liang Liangbi Chen | 2013 | Plant Cell Reports2013，，4： | 1 |
| 12 | Increase in electron transfer activity in photosystemⅡof spinach thylakoids caused by conversion of phosphatidyl-glycerol to phosphatidic acid molecules显示文摘The techniques of oxygen electrode polarography, sodium dodecyl sulfate-polyacryamide gel electrophoresis (SDS-PAGE) and thin layer chromatography (TLC) were employed to investigate the effect of phospholipase D treatment on physiological function of spinach thylakoids. It was shown that the phospholipase D treatment on thylakoid resulted in the degradation of phosphatidylglycerol (PG) and occurrence of phosphatidic acid (PA). The changes of PG to PA molecules caused an increase in oxygen evolution in photosystem Ⅱ (PSⅡ), which was accompanied by an uncoupling effect on thylakoid membrane. It was revealed that the head-groups of PG molecules play an important role in the maintenance of the appropriate physiological activity of thylakoid membrane. | WU Feng, YANG Zhenle, LI Liangbi & KUANG Tingyun Key Laboratory of Photosynthesis and Environmental Molecular Physiology & Photosynthesis Research Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Correspondence should be addressed to Yang Zhenle (e-mail: yangzhl @ns.ibcas.ac.cn) | 2003 | Chinese Science Bulletin2003，48，15： | 0 |
| 13 | Simulation for the primary electronic donor of photosystem II in vitro显示文摘Histidine coordinated to Chl a is a distinct characteristic of Chl a in vivo. By usinghistidine analogue of 1-methylimidazole (C4H6N2) and measuring the UV/vis absorption, CD and MCD spectra of the interaction between C4H6N2and Chl a in CCI4, we have obtained that: (i) In pure CCI4 solvent, Chl a molecule is in five-coordinate state, and two Chl a molecules form an asymmetric compact-dimer with strong coupling interaction. We propose that the two Chl a molecules are connected by two unequally coordinated Mg-O bonds (the two oxygen atoms come from the C=O of C131 keto and C17 ester, respectively); (ii) when the molar ratio of C4H6N2/Chl a is 0.5 or 1 (corresponding to 2Chl a #1C4H6N2 and 2Chl a ·2C4H6N2, respectively), significant changes have been observed in the absorption, CD and MCD spectra, which indicate that the Chl a remains in dimer form, but the coupling interaction between them reduces greatly. We postulate that C4H6N2 replaces the ligation of C=O of C17 ester and C131 keto to Mg atoms | PAN Jie ZHANG Chunxi GONG Yandao LI Liangbi ZHAO Nanming KUANG Tingyun | 2000 | Chinese Science Bulletin2000，45，10： | 0 |
| 14 | The excitation energy transfer between β-Car and Chla molecules in PS Ⅱ core antenna complexes CP43 and CP47显示文摘The excitation energy transfer efficiency between p-Car and Chla molecules in purified CP43 and CP47 was calculated by comparing absorption and fluorescence excitation after normalization at 550 nm, CP43 had an energy transfer efficiency of 29.1% while the CP47 had an energy transfer efficiency of 62.8%, proving that excitation energy was transferred between p-Car and Chla molecules in CP43 and CP47 at normal conditions. The excitation energy transfer between p-Car and Chla molecules in CP43 and CP47 may occur through the 'Dexter' mechanism and the distance between these two kinds of pigments should be less than 1 nm. In addition, the results were also used to discuss the conformational relationship between p-Car and Chla molecules in CP43 and CP47. | SHAN Jixiu, WANG Jushuo, LI Liangbi,ZHAO Nanming & KUANG Tingyun1. Laboratory of Photosynthesis Basic Research, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China 2. Department of Biological Sciences and Biotechnology, State Key Laboratory of Biomembrane and Membrane Biotechnology, Tsinghua University, Beijing 100084, ChinaCorrespondence should be addressed to Kuang Tingyun | 2000 | Chinese Science Bulletin2000，45，17： | 0 |
| 15 | Mutagenesis of Ser^(24) of cytochrome b559 α subunit affects PSII activities in Chlamydomonas reinhardtii显示文摘In order to study the functions of cytochrome b559 (Cyt b559) in photosystem two (PSII) activity, mutant S24F of Chlamydomonas reinhardtii was constructed using site directed mutagenesis, in which Serine24 (Ser24) locating downstream of Histidine23 (His23) in α subunit of Cyt b559 was replaced by Phenylalanine (Phe). Physiological and biochemical analysis showed that mutant S24F could be grown photoautotrophically or photoheterotrophically. However, their growth rate was slower either on HSM or TAP medium than that of the control; Analysis of PSII activity revealed that its oxygen evolution was about 71% of wild type (WT); The Photochemical efficiency of PSII (Fv/Fm) of S24F was reduced 0.23 compared with WT; S24F was more sensitive to strong light irradiance than the wild type; Furthermore, SDS-PAGE and Western-blotting analysis indicated that the expression levels of α subunit of Cyt b559, LHCII and PsbO of S24F were a little less than those of the wild type. Overall, these data suggests that Ser24 plays a significant role in making Cyt b559 structure maintain PSII complex activity of oxygen evolution although it is not directly bound to heme group. | MA JingJing LI LiangBi JING YuXiang KUANG TingYun | 2007 | Chinese Science Bulletin2007，52，7： | 0 |
| 16 | Effects of different aggregation forms of LHC Ⅱ from Bryopsis corticulans on the excited state properties of Chl a显示文摘Steady-state and time-resolved fluo- rescence spectroscopies have been used to study the excited state properties of Chl a in different ag- gregation forms of light-harvesting complex II (LHC II) from an intertidal green alga, Bryopsis corticulans, i.e. LHC II monomer, trimer and oligomer. When either Chl a or Chl b was selectively excited, the observed decrease in Chl a fluorescence in the oligomer is proved to be caused mainly by the fast fluorescence quenching among Chl a molecules, rather than by the decrease in Chl b-to-Chl a singlet excitation transfer efficiency. Analyses of the picosecond time-resolved fluorescence kinetics identified two exponential de- cay components in all of the three forms of LHC II: a longer-lived component (4.1―4.7 ns) originating from fluorescence emission of Chl a, and a shorter-lived one (135―540 ps) from the rapid equilibration of singlet excitation among Chl a molecules. The time constant of excitation equilibration is 135 ps in oli- gomer, 520 ps in trimer and 540 ps in monomer. These results imply that LHC II in oligomer form is inherently able to quench Chl a excitation, a mecha- nism which may be related to the photoprotection of PS II via changing the degree of LHC II aggregation in Bryopsis corticulans. | ZUO Ping CHEN Hui WU Yishi SHEN Shihua WANG Peng AI Xicheng ZHANG Jianping LI Liangbi KUANG Tingyun | 2006 | Chinese Science Bulletin2006，51，12： | 0 |
| 17 | Phosphatidylglycerol effect on oxygen-evolving activity in Ca^(2+)-depleted photosystem Ⅱ显示文摘The ettect of anionic phosphatidylglycerol (HG) on oxygen evolution in a photosystem Ⅱ (PS Ⅱ) particle depleted of Ca2+ (designated dCaPS Ⅱ) has been investigated. The major finding is the observation of a new role of PG in the PS Ⅱ function. That is, PG restores nearly the lost oxygen evolution in dCaPS Ⅱ particle owing to Ca2+ depletion to the levels in intact PS Ⅱ . Furthermore, there is a stimulation of oxygen-evolving activity in the dCaPSⅡ complexed with PG in the presence of exogenous CaCI2, which PG enhances increasingly oxygen evolution with increasing CaCI2 concentration. It is suggested that PG-induced oxygen evolution recovery of dCa PS Ⅱresumption of normal structure in protein by PG effect, whereas the enhancement of oxygen evolution in complex subject to CaCI2 is ascribed to the optimization of such a structure due to coordination complex formation of Ca2+ ions with PG. | YANG Zhenle, LI Liangbi, XU Yinong & KUANG TingyunLaboratory of Photosynthesis Basic Research, Institute of Botany, Chinese Academy of Sciences, Beijing 100093. China | 2000 | Chinese Science Bulletin2000，45，21： | 0 |
| 18 | The photodamage process of pigments and proteins of PSI complexes from Spinacia Oleracea L.显示文摘Purified PSI complexes from Spinacia Oleracea L. were exposed to the strong light (PFD=2300μmol m-2s-1) for various period. Along with the illumination the photo-damage process of pigments and proteins of PSI complexes was investigated using absorption, fluorescence, circular dichroism (CD) spectroscopy and SDS-PAGE. It was found from the optical absorption spectra that the maximal ab-sorbance of PSI complexes decreased and maximal peaks blue-shifted during the illumination, and the forth derivative spectra demonstrated that the absorbance decreasing at red region mainly resulted from the aborbance decreasing of the long wavelength Chla, implying that the long-wavelength Chla was readily to be bleached. The CD signals contributed by LHCI decreased more rapidly than other CD signals con-tributed by Chla and Carotenoid, indicating that the LHCI was more sensitive to light than core complexes. It was observed by SDS-PAGE that some small polypeptides of PSI complexes were damaged earlier than reaction | WEI Jie YU Hui LI Liangbi KUANG Tingyun WANG Jushuo GONG Yandao ZHAO Nanming | 2001 | Chinese Science Bulletin2001，46，21： | 0 |
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