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Transcriptional Regulation of Plant Secondary Metabolism

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Journal of Integrative Plant Biology 2012年第10期54卷 703-712页

作者： Chang-Qing Yang Xin Fang Xiu-Ming Wu Ying-Bo Mao ling-jian wang Xiao-Ya Chen National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for BiologicalSciences the Chinese Academy of Sciences Shanghai 200032 China plant Science Research Center. Shanahai Chensh-an Botanical Garden. Shanahai 201602. China

Plant secondary metabolites play critical roles in plant-environment interactions. They are synthesized in different organs or tissues at particular developmental stages, and in response to various environmental stimuli, both biotic and abiotic. Accordingly, corresponding genes are regulated at the transcriptional level by multiple transcription factors. Several families of transcription factors have been identified to participate in controlling the biosynthesis and accumulation of secondary metabolites. These regulators integrate internal （often developmental） and external signals, bind to corresponding cis-elements -- which are often in the promoter regions -- to activate or repress the expression of enzyme-coding genes, and some of them interact with other transcription factors to form a complex. In this review, we summarize recent research in these areas, with an emphasis on newly-identified transcription factors and their functions in metabolism regulation.

关键词： Alkaloid phenylpropanoid secondary metabolism terpenoid transcription factor.

RES transformation for biosynthesis and detoxification

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Science China(Life Sciences) 2020年第9期63卷 1297-1302页

作者： Jin-Quan Huang Jia-ling Lin Xiao-Xiang Guo Xiu Tian Ye Tian Xiao-Xia Shangguan ling-jian wang Xin Fang Xiao-Ya Chen State Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyUniversity of CASChinese Academy of SciencesShanghai 200032China School of Life Science and Technology ShanghaiTech UniversityShanghai 200031China SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research CAS Key Laboratory of NutritionMetabolism and Food SafetyShanghai Institute of Nutrition and HealthShanghai Institutes for Biological SciencesUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200031China State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai Chenshan Botanical GardenShanghai Chenshan Plant Science Research CenterChinese Academy of SciencesShanghai 201602China

The reactive electrophilic species(RES), typically the molecules bearing α,β-unsaturated carbonyl group, are widespread in living organisms and notoriously known for their damaging effects. Many of the mycotoxins released from phytopathogenic fungi are RES and their contamination to cereals threatens food safety worldwide. However, due to their high reactivity, RES are also used by host organisms to synthesize specific metabolites. The evolutionary conserved glyoxalase(GLX) system scavenges the cytotoxic α-oxoaldehydes that bear RES groups, which cause host disorders and diseases. In cotton, a specialized enzyme derived from glyoxalase I(GLXI) through gene duplications and named as specialized GLXI(SPG), acts as a distinct type of aromatase in the gossypol pathway to transform the RES intermediates into the phenolic products. In this review, we briefly introduce the research progress in understanding the RES, especially the RES-type mycotoxins, the GLX system and SPG, and discuss their application potential in detoxification and synthetic biology.

关键词： reactive electrophilic species glyoxalase gossypol mycotoxin detoxification aromatase

Plant Terpenoids： Biosynthesis and Ecological Functions

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Journal of Integrative Plant Biology 2007年第2期49卷 179-186页

作者： Ai-Xia Cheng Yong-Gen Lou Ying-Bo Mao Shan Lu ling-jian wang Xiao-Ya Chen National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences the Chinese Academy of Sciences Shanghai 200032 China Institute of Insect Sciences Zhejiang University Hangzhou 310029 China

Among plant secondary metabolites terpenolds are a structurally most diverse group; they function as phytoalexins In plant direct defense, or as signals In Indirect defense responses which involves herbivores and their natural enemies. In recent years, more and more attention has been paid to the Investigation of the ecological role of plant terpenolds. The biosynthesis pathways of monoterpenes, sesquiterpenes, and diterpenes Include the synthesis of C5 precursor isopentenyl diphosphate （IPP） and Its allylic isomer dlmethylallyl dlphosphate （DMAPP）, the synthesis of the immediate diphosphate precursors, and the formation of the diverse terpenoids. Terpene synthases （TPSs） play a key role In volatile terpene synthesis. By expression of the TPS genes, significant achievements have been made on metabolic engineering to Increase terpenoid production. This review mainly summarizes the recent research progress In elucidating the ecological role of terpenoids and characterization of the enzymes Involved in the terpenold biosynthesis. Spatial and temporal regulations of terpenoids metabolism are also discussed.

关键词： chemical ecology metabolism regulation plant terpenoids terpene synthase.

New model of linkage evolution for the transtensional fault systems in the Nanpu Sag of Bohai Bay Basin: Insight from seismic interpretation and analogue modelling

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Petroleum Science 2024年第4期21卷 2287-2310页

作者： Yu-Heng wang Fu-Sheng Yu Bao-Yin Zhao ling-jian Meng College of Geosciences China University of Petroleum (Beijing) State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum (Beijing) Jidong Oilfield Company PetroChina Limited Company

The evolution of faults within the same stress field is frequently influenced by numerous factors,involving the reactivation of pre-existing structures, stress transmission through ductile detachment layers, and the growth, interaction, as well as linkage of new fault segments. This study analyses a complex multi-phase oblique extension fault system in the Nanpu Sag(NPS) of the Bohai Bay Basin(BBB),China. High-resolution three-dimensional(3D) seismic data and analogue modelling indicate that the oblique extensional reactivation of pre-existing structures governs the sequential arrangement of fault segments in the caprock, and they dip synthetically to the reactivated fault at depth. During the NW-SE extension in the Eocene, the predominant movement of the pre-existing fault is strike-slip. Subsequently,during the N-S extension since the Oligocene, inclined at *** the pre-existing fault, forming splay fault segments and ultimately creating large en-echelon arcuate faults linked by relay ramps. Using fault throw-distance(T-D) and laser scanning, we reconstructed the fault evolution model of oblique extension reactivation in the presence of a ductile detachment basement. Our study illustrates that the arcuate faults can be categorized into linear master fault segments controlled by pre-existing structures, bending splay faults in the termination zone, and normal fault segments responding to the regional stress *** interaction between faults occurs among normal faults and strike-slip faults, and the kinematic unification of the two fault systems is accomplished in the intersection zone. As the faults continue to evolve, the new fault segments tend to relinquish the control of pre-existing structures and concentrate more on the development of planar and continuous major faults. The ductile detachment layer significantly contributes to the uniform distribution of strain, resulting in narrow shear zones and discontinuous normal faults in its absence.

关键词： Analogue modelling Transtensional deformation Fault linkage Fault intersection zone Nanpu Sag of Bohai Bay basin

A Catalog of Luminous Infrared Galaxies in the IRAS Survey and Second Data Release of SDSS

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Chinese Journal of Astronomy and Astrophysics 2006年第2期6卷 197-209页

作者： Chen Cao Hong Wu jian-ling wang Cai-Na Hao Zu-Gan Deng Xiao-Yang Xia Zhen-Long Zou National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 Graduate School of Chinese Academy of Sciences Beijing 100049 College of Physical Sciences Graduate School of Chinese Academy of Sciences Beijing 100049 Department of Physics Tianjin Normal University Tianjin 300074

We selected a sample of luminous infrared galaxies by cross-identification of the Faint Source Catalogue （FSC） and Point Source Catalogue （PSC） of the IRAS Survey with the Second Data Release of the SDSS. The size of our sample is 1267 for FSC and 427 for PSC by using the 2a significance level cross-section. The ＂likelihood ratio＂ method is used to estimate the individual＇s reliability and for defining two more reliable subsamples （908 for FSC and 356 for PSC）. A catalog of infrared, optical and radio data is compiled and will be used in further work. Some statistical results show that luminous infrared galaxies are quite different from ultra-luminous infrared galaxies. The AGN fractions of galaxies at different infrared luminosities and the radio-infrared correlations are consistent with the previous studies.

关键词： catalogs - galaxies: statistics - infrared: galaxies

A Possible X-ray Quasi-periodic Oscillation in the Narrow-line Seyfert 1 Galaxy Mrk 142

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Research in Astronomy and Astrophysics 2024年第6期24卷 191-200页

作者： Xiao-Gu Zhong jian-Cheng wang Yong-Yun Chen Xiao-ling Yu College of Physics and Electronic Engineering Qujing Normal UniversityQujing 655011China Yunnan Observatories Chinese Academy of SciencesKunming 650216China

A possible quasi-periodic oscillation(QPO) at frequency 7.045 × 10^(-5) Hz is found in the narrow-line Seyfert 1galaxy Mrk 142 in the data of XMM-Newton collected on 2020 April *** find that the QPO signal is statistically significantly larger than the 5σ level and highly coherent with quality factor Q > 5 at the 0.3–10 keV band by using the method of the Lomb–Scargle Periodogram,the Weighted Wavelet Z-transform and the *** analyze the data in 0.3–0.6 keV,0.6–1 keV,1–3 keV and 3–10 keV energy bands,and find obvious QPO signals at 0.3–0.6 keV and 1–3 keV *** then analyze the time-average spectra and time variability at the QPO frequency of 7.045 × 10^(-5) Hz,and use a model to fit *** find that the QPO signal mainly comes from the X-ray hot corona.

关键词： X-rays:galaxies galaxies:Seyfert accretion accretion disks radiation mechanisms:general

Network analysis reveals context-dependent structural complexity of social calls in serrate-legged small treefrogs

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Current Zoology 2024年第2期70卷 253-261页

作者： Ke Deng Qiao-ling He Tong-Liang wang Ji-Chao wang jian-Guo Cui CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization&Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China University of Chinese Academy of Science Beijing 100049China Ministry of Education Key Laboratory for Ecology of Tropical lslands Key Laboratory of Tropical Animal and Plant Ecology of Hainan ProvinceCollege of Life SciencesHainan Normal UniversityHaikou 571158China

Vocal communication plays an important role in survival,reproduction,and animal social *** and mammals produce com-plex vocal sequence to convey context-dependent *** are conspicuous features of the behavior of most anuran species(frogs and toads),and males usually alter their calling strategies according to ecological context to improve the attractiveness/***,very few studies have focused on the variation of vocal sequence in *** the present study,we used both conventional method and network analysis to investigate the context-dependent vocal repertoire,vocal sequence,and call network structure in serrate-legged small treefrogs Kurixalus *** found that male *** modified their vocal sequence by switching to different call types and increasing repertoire size in the presence of a competitive ***,compared with before and after the playback of advertisement calls,males emited fewer advertisement calls,but more aggressive calls,encounter calls,and compound calls during the playback *** analysis revealed that the mean degree,mean closeness,and mean betweenness of the call networks significantly decreased during the playback period,which resulted in lower *** addition,the increased proportion of one-way motifs and average path length also indicated that the connectivity of the call network decreased in competitive ***,the vocal sequence of *** did not display a clear small-world network structure,regardless of *** study presents a paradigm to apply network analysis to vocal sequence in anurans and has important implications for understanding the evolution and function of sequence patterns.

关键词： call network centrality Kurixalus odontotarsus vocal repertoire vocal sequence.

Clinical application rules of different micro needle system therapy

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World Journal of Acupuncture-Moxibustion 2019年第4期29卷 290-293页

作者： Jing XU Jing SHI jian-ling wang Chun-sheng JIA School of Acupuncture Moxibustion and TuinaHebei University of Chinese MedicineShijiazhuang 050200China School of Basic Medical Sciences Hebei University of Chinese MedicineShijiazhuang 050200China Office of Academic Affairs Hebei University of Chinese MedicineShijiazhuang 050200China

Different micro needle system therapies have different advantages and ***,at present,the dominant diseases for which each therapy is appropriate are positioned relatively vaguely,and even the acupoint selections for the same disease are *** clinical application of the dominant disease and application characteristics of each micro needle system therapy is a scientific problem that needs to be explored *** on the previous data mining study of the clinical application of auricular acupuncture,scalp acupuncture,abdominal acupuncture,eye acupuncture,wrist-ankle acupuncture,hand acupuncture,the second metacarpal bone lateral needling,facial acupuncture,mouth acupuncture and nose acupuncture,the diseases reported more in the clinical literature of each therapy were extracted to find out the same symptoms applicable to different micro needle *** clinical application and differences of different micro needle systems for the same disease were compared horizontally,and it demonstrated that the second metacarpal bone lateral needling,facial needle,mouth acupuncture and nose acupuncture were biased towards a partial corresponding therapeutic relationship between one part and the other part,and the eye acupuncture was biased to interfere with the whole by adjusting the function of the organs,and the auricular,scalp and abdominal needles had the both characteristics,and the wrist-malleolus acupuncture and hand acupuncture were often used in various disorders of the meridian-collateral *** differences were researched and summarized to more accurately guide clinicians in the application of different micro needle system therapies.

关键词： Micro needle system Dominant disease Auricular acupuncture Scalp acupuncture Abdominal acupuncture Eye acupuncture Wrist-ankle acupuncture Hand needle

Single-cell RNA sequencing reveals a hierarchical transcriptional regulatory network of terpenoid biosynthesis in cotton secretory glandular cells

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Molecular Plant 2023年第12期16卷 1990-2003页

作者： Jia-ling Lin Longxian Chen Wen-Kai Wu Xiao-Xiang Guo Cheng-Hui Yu Min Xu Gui-Bin Nie Jun-ling Dun Yan Li Baofu Xu ling-jian wang Xiao-Ya Chen Wei Gao Jin-Quan Huang State Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyUniversity of CASChinese Academy of SciencesShanghai 200032China School of Life Science and Technology ShanghaiTech UniversityShanghai 200031China Chongqing Key Laboratory of Micro-Nano Systems and Intlligent Transduction Collaborative InnovationNational Research Base of Inteligent Manufacturing ServiceChongqing Technology and Business UniversityChongqing 400067China Analytical Applications Center Shimadzu(China)Co.Ltd.Shanghai 200233China Shandong Laboratory of Yantai Drug Discovery Bohai Rim Advanced Research Insttute for Drug DiscoveryYantai 264117ShandongChina State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai Chenshan Botanical GardenShanghai 201602China National Key Laboratory of Cotton Bio-breeding and Integrated Utilization(Henan University) Henan 475004China

Plants can synthesize a wide range of terpenoids in response to various environmental ***,the specific regulatory mechanisms governing terpenoid biosynthesis at the cellular level remain largely *** this study,we employed single-cell RNA sequencing to comprehensively characterize the transcriptome profile of cotton leaves and established a hierarchical transcriptional network regulating cellspecific terpenoid *** observed substantial expression levels of genes associated with the biosynthesis of both volatile terpenes(such asβ-caryophyllene andβ-myrcene)and non-volatile gossypol-type terpenoids in secretory glandular ***,two novel transcription factors,namely GoHSFA4a and GoNAC42,are identified to function downstream of the Gossypium PIGMENT GLAND FORMATION *** transcription factors could directly regulate the expression of terpenoid biosynthetic genes in secretory glandular cells in response to developmental and environmental *** convenient retrieval of the single-cell RNA sequencing data generated in this study,we developed a user-friendly web *** findings not only offer valuable insights into the precise regulation of terpenoid biosynthesis genes in cotton leaves but also provide potential targets for cotton breeding endeavors.

关键词： hierarchical network cotton