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| 1 | Low phosphorus promotes NSP1–NSP2 heterodimerization to enhance strigolactone biosynthesis and regulate shoot and root architecture in rice显示文摘Phosphorus is an essential macronutrient for plant development and metabolism,and plants have evolved ingenious mechanisms to overcome phosphate(Pi)starvation.However,the molecular mechanisms underlying the regulation of shoot and root architecture by low phosphorus conditions and the coordinated utilization of Pi and nitrogen remain largely unclear.Here,we show that Nodulation Signaling Pathway 1(NSP1)and NSP2 regulate rice tiller number by promoting the biosynthesis of strigolactones(SLs),a class of phytohormones with fundamental effects on plant architecture and environmental responses.We found that NSP1 and NSP2 are induced by Oryza sativa PHOSPHATE STARVATION RESPONSE2(OsPHR2)in response to low-Pi stress and form a complex to directly bind the promoters of SL biosynthesis genes,thus markedly increasing SL biosynthesis in rice.Interestingly,the NSP1/2–SL signaling module represses the expression of CROWN ROOTLESS 1(CRL1),a newly identified early SL-responsive gene in roots,to restrain lateral root density under Pi deficiency.We also demonstrated that GR24^(4DO) treatment under normal conditions inhibits the expression of OsNRTs and OsAMTs to suppress nitrogen absorption but enhances the expression of OsPTs to promote Pi absorption,thus facilitating the balance between nitrogen and phosphorus uptake in rice.Importantly,we found that NSP1p:NSP1 and NSP2p:NSP2 transgenic plants show improved agronomic traits and grain yield under low-and medium-phosphorus conditions.Taken together,these results revealed a novel regulatory mechanism of SL biosynthesis and signaling in response to Pi starvation,providing genetic resources for improving plant architecture and nutrient-use efficiency in low-Pi environments. | Kun Yuan Hao Zhang Chaoji Yu Nan Luo Jijun Yan Shuang Zheng Qingliang Hu Dahan Zhang Liquan Kou Xiangbing Meng Yanhui Jing Mingjiang Chen Xinwei Ban Zongyun Yan Zefu Lu Jian Wu Yu Zhao Yan Liang Yonghong Wang Guosheng Xiong Jinfang Chu Ertao Wang Jiayang Li Bing Wang | 2023 | Molecular Plant2023，16，11： | 2 |
| 2 | Theoretical Study on the Structures,Spectral Properties,and Drugability of Xenicane-type Diterpenoids from Dictyota dichotoma显示文摘There are few reports on the relationship between the biological activity and structure of secondary metabolites from Dictyota dichotoma. In this work, the geometric and electronic structures, infrared spectra, ultraviolet spectra, 13C and 1H NMR spectra of 16 xenicane-type diterpenoids extracted from Dictyota dichotoma were studied by the density functional theory ωB97XD/6-311+G(2d,p) method. The analysis of the reactivity indices was carried out via the conceptual density functional theory. Furthermore, a pharmacodynamic evaluation was performed using ADME/Tox. The geometric structure analysis found that all 16 diterpenoids had the same unsaturated, branched chains and could be divided into two categories according to the ring size, including nine-membered and eight-membered rings. A hydroxyl group on the lactone ring reduced the stability of the compound. In contrast, a hydroxyl group on the parent ring had little effect on the compound's stability. The electrostatic potential results preliminarily predicted active sites for nucleophilic/electrophilic reactions. The fitting results of infrared and nuclear magnetic resonance(NMR) data showed that the theoretical values obtained by this method were consistent with the experimental values. The UV-visible absorption spectra showed that the solvent effects caused different redshifts of the absorption peaks. The absorption strength was enhanced. The sixteen diterpenoids displayed a strong absorption peak in the range of 180―200 nm, but the compound containing a carbonyl group presents a weaker absorption peak in the field of 200―240 nm. Compounds 9―11, 14, and 15 have better stability and reactivity with lower chemical potentials and higher electronegativity, electrophilic index, and hardness values. The local reactivity descriptors further identified nucleophilic/electrophilic reaction sites for the sixteen compounds. Finally, the pharmacodynamic evaluation results predicted that compounds 2, 4, 8, 11, and 14―16 have optimal drugability. The theoretical results of this work may provide a rich data information for the other experimental study on the cembrane diterpenoids in medicine. | HUANG Luoyi SUN Xiang CHEN Mengyi YAN Pengcheng WANG Chaojie | 2022 | Chemical Research in Chinese Universities2022，38，2： | 1 |
| 3 | Effect of ul- trasonic specific energy on waste activated sludge solubilizationand enzyme activity显示文摘 | Yan Yuanyuan Feng Leiyu Zhang Chaojie | 2010 | African Journal of Biotechnology2010，9，12： | 1 |
| 4 | Quantitative characterization of short- and long-chain perfluorinated acids in solid matrices in Shanghai, China显示文摘 | Fei Li Chaojie Zhang Yan Qu Jing Chen Ling Chen Ying Liu Qi Zhou | 2009 | Science of the Total Environment2009，，3： | 1 |
| 5 | Photo-reductive defluorination of perfluorooctanoic acid in water显示文摘 | Yan Qu Chaojie Zhang Fei Li Jing Chen Qi Zhou | 2010 | Water Research2010，，9： | 1 |
| 6 | Effect of initial so-lution pH on photo-induced reductive decomposition of perfluo- rooctanoic acid 显示文摘 | QU Yan ZHANG Chaojie CHEN Pei | 2014 | Chemosphere2014，107，： | 1 |
| 7 | Discovery and genetic characterization of intestinal metaplasia in the Helicobacter felis-infected mouse model of gastric cancer显示文摘Gastric adenocarcinoma(GA)remains a leading cause of cancer-related deaths in the world [1].Of the different types of GA,intestinal-type GA is especially a major world-wide concern not only because this type of GA accounts for a large proportion of the global incidences but also because it is believed to be acquired,and thus possibly preventable.In particular,Helicobacter pylori-induced chronic inflammation is suggested to lead to the transformation of normal gastric mucosa to chronic gastritis,gastric atrophy,intestinal metaplasia(IM),dysplasia,and finally intestinal-type GA,as first proposed by Correa [2].Thus,IM tissue,characterized by the presence of cells resembling those derived from the intestine-specific lineage such as goblet cells that are not present in the normal stomach,is considered to be a critical precancerous tissue en route to GA [3].Furthermore,the transition to IM is believed to be the ‘point of no return’since the IM tissue does not revert back to normal gastric tissue after the eradication of H.pylori [4].However,the precise details of the IM tissue that are critical to the subsequent development of GA are not presently understood. | Jiangrong Chen Chunchao Zhu Chaojie Wang Xiaodan Zhang Jian Ni Daniel M.Czajkowsky Bingya Liu Yan Guo | 2019 | Acta Biochimica et Biophysica Sinica2019，51，2： | 1 |
| 8 | Suppression of ZEAXANTHIN EPOXIDASE 1 restricts stripe rust growth in wheat显示文摘Reducing losses caused by pathogens is an effective strategy for stabilizing crop yields.Daunting challenges remain in cloning and characterizing genes that inhibit stripe rust,a devastating disease of wheat(Triticum aestivum)caused by Puccinia striiformis f.sp.tritici(Pst).We found that suppression of wheat zeaxanthin epoxidase 1(ZEP1)increased wheat defense against Pst.We isolated the yellow rust slower 1(yrs1)mutant of tetraploid wheat in which a premature stop mutation in ZEP1-B underpins the phenotype.Genetic analyses revealed increased H_(2)O_(2) accumulation in zep1 mutants and demonstrated a correlation between ZEP1 dysfunction and slower Pst growth in wheat.Moreover,wheat kinase START 1.1(WKS1.1,Yr36)bound,phosphorylated,and suppressed the biochemical activity of ZEP1.A rare natural allele in the hexaploid wheat ZEP1-B promoter reduced its transcription and Pst growth.Our study thus identified a novel suppressor of Pst,characterized its mechanism of action,and revealed beneficial variants for wheat disease control.This work opens the door to stacking wheat ZEP1 variants with other known Pst resistance genes in future breeding programs to enhance wheat tolerance to pathogens. | Chao-Yan Chang Shu-Xian Yang Mei-Qi Zhang Yue-Ting Guo Xiao-Ming Li Yan Yan Ci-Hang Ding Ke-Xin Niu Meng-Lu Wang Qin-Quan Li Junli Zhang Xuebin Zhang Shisheng Chen Chaojie Xie Zhongfu Ni Qixin Sun Jin-Ying Gou | 2023 | Plant Communications2023，4，5： | 0 |
| 9 | Similarity comprehensive evaluation of humanoid robot arm motion显示文摘A suitable comprehensive evaluation method for similarity comprehensive evaluation of humanoid motion(mainly to robotic arm) is proposed.For different robotic arms, a static comprehensive evaluation model is established by projection pursuit evaluation based on indexes of humanoid robot arm motion in robotics and ergonomics field. Based on projection pursuit evaluation with timing information entropy and time degrees, a dynamic comprehensive evaluation method is proposed by linear weighting to each time's static model's indexes weight according to timing weighted vectors. Through comparing similarity comprehensive evaluation result based on static and dynamic comprehensive evaluation model, the results show that similarity based on dynamic comprehensive evaluation model is high. By comparing reliability, similarity and dispersion of static and dynamic comprehensive evaluation models, the results show that dynamic comprehensive evaluation result has better accuracy, stability and lower dispersion, and the result is more reasonable and real. Therefore, the dynamic comprehensive evaluation method proposed in this paper is more suitable for similarity comprehensive evaluation of humanoid robot arm motion. | 李立明 Zhao Jing Yan Chaojie Wang Chunrong | 2019 | High Technology Letters2019，25，1： | 0 |
| 10 | Direct transformation of n-alkane into all-trans conjugated polyene via cascade dehydrogenation显示文摘Selective C(sp^(3))-H activation is of fundamental importance in processing alkane feedstocks to produce high-value-added chemical products.By virtue of an on-surface synthesis strategy,we report selective cascade dehydrogenation of n-alkane molecules under surface constraints,which yields monodispersed all-trans conjugated polyenes with unprecedented length controllability.We are also able to demonstrate the generality of this concept for alkyl-substituted molecules with programmable lengths and diverse functionalities,and more importantly its promising potential in molecular wiring. | Xuechao Li Kaifeng Niu Junjie Zhang Xiaojuan Yu Haiming Zhang Yuemin Wang Qing Guo Pengdong Wang Fangsen Li Zhengming Hao Chaojie Xu Yanning Tang Zhichao Xu Shuai Lu Peng Liu Guigu Xue Yen Wei Lifeng Chi | 2021 | National Science Review2021，8，10： | 0 |
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