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Phytochrome Signaling： Time to Tighten up the Loose Ends

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Molecular Plant 2015年第4期8卷 540-551页

作者： Hai wang haiyang wang Biotechnology Research Institute Chinese Academy of Agricultural Sciences Beijing 100081 China

Phytochromes are red and far-red light photoreceptors that play fundamental roles in controlling many aspects of plant growth and development in response to light. The past two decades have witnessed the mechanistic elucidation of the action mode of phytochromes, including their regulation by external and endogenous factors and how they exert their function as transcriptional regulators. More importantly, recent advances have substantially deepened our understanding on the integration of the phytochromemediated signal into other cellular and developmental processes, such as elongation of hypocotyls, shoot branching, circadian clock, and flowering time, which ofteninvolves complex intercellular and interorgan signaling. Based on these advances, this review illustrates a blueprint of our current understanding of phytochrome signaling and its crosstalk with other signaling pathways, and also points out still open questions that need to be addressed in the future.

关键词： light regulation light signaling cell signaling photomorphogenesis

Mean-variance portfolio selection with discontinuous prices and random horizon in an incomplete market

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Science China(Information Sciences) 2020年第7期63卷 245-247页

作者： haiyang wang Zhen WU School of Mathematics and Statistics Shandong Normal University School of Mathematics Shandong University

Dear editor,The study of mean-variance portfolio selection problems began with a single-period setting by Markowitz [1]. Then, inspired by Li and Ng [2],Zhou [3] first introduced a linearly constrained linear quadratic (LQ) control approach to solve this type of problem with deterministic market parameters. Along this line, Lim [4] generalized the results in [3] to a case with random parameters in an incomplete market.

关键词： Random horizon Doubly Poisson process Backward stochastic differential equations Linear-quadratic optimal control Mean-variance portfolio selection, Doubly Poisson process

Targeting Proteins for Degradation by Arabidopsis COP1： Teamwork Is What Matters

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Journal of Integrative Plant Biology 2007年第1期49卷 35-42页

作者： Rongcheng Lin haiyang wang Boyce Thompson Institute for Plant Research Comell University Ithaca NY 14853 USA

Arsbidopsis COP1 （Constitutive Photomorphogenic 1） defines a key repressor of photomorphogenesis in darkness by acting as an E3 ubiquitin Iigase in the nucleus, and is responsible for the targeted degradation of a number of photomorphogenesis-promoting factors, including phyA, HY5, LAF1, and HFR1. Light activation of multiple classes of photoreceptors （including both phytochromes and cryptochromes） inactivates COP1 and reduces its nuclear abundance, allowing the accumulation of these positively acting light signaling intermediates to promote photomorphogenic development. Recent studies suggest that Arabidopsis COP1 teams up with a family of SPA proteins （SPA1-SPA4） to form the physiologically active COP1-SPA E3 ubiquitin ligase complexes. These COP1-SPA complexes play overlapping and distinct functions in regulating seedling photomorphogenesis under different light conditions and adult plant growth. Further, the COP1-SPA complexes act In concert at a biochemical level with the CDD （COP10, DET1, and DDB1） complex and COP9 signalosome （CSN） to orchestrate the repression of photomorphogenesis.

关键词： Arabidopsis COP1 E3 ligase photomorphogenesis proteolysis SPA

Development of the “Third-Generation” Hybrid Rice in China

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Genomics, Proteomics & Bioinformatics 2018年第6期16卷 393-396页

作者： haiyang wang Xing wang Deng School of Life Sciences State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesSouth China Agricultural University Biotechnology Research Institute Chinese Academy of Agricultural Sciences State Key Laboratory of Protein and Plant Gene Research Peking-Tsinghua Center for Life SciencesSchool of Advanced Agriculture Sciences and School of Life SciencesPeking University

Rice is a major cereal crop for China. The development of the ‘‘three-line" hybrid rice system based on cytoplasmic male sterility in the 1970 s(first-generation) and the ‘‘two-line" hybrid rice system based on photoperiod-and thermo-sensitive genic male-sterile lines(second-generation)in the 1980 s has contributed significantly to rice yield increase and food security in China. Here we describe the development and implementation of the ‘‘third-generation" hybrid rice breeding system that is based on a transgenic approach to propagate and utilize stable recessive nuclear male sterile lines, and as such, the male sterile line and hybrid rice produced using such a system is nontransgenic. Such a system should overcome the intrinsic problems of the ‘‘first-generation" and‘‘second-generation" hybrid rice systems and hold great promise to further boost production of hybrid rice and other crops.

关键词： Rice Hybrid breeding Cytoplasmic male sterility Photoperiod/thermosensitive genic male-sterility(P/TGMS) Third-generation hybrid rice

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Uncovering the largest negative carbon isotope excursion in Earth history

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Science China Earth Sciences 2024年第3期67卷 885-889页

作者： Chao LI haiyang wang State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu 610059China Institute of Sedimentary Geology Chengdu University of TechnologyChengdu 610059China Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications of Ministry of Natural Resources Chengdu University of TechnologyChengdu 610059China International Center for Sedimentary Geochemistry and Biogeochemistry Research Chengdu University of TechnologyChengdu 610059China State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesWuhan 430074China

The carbon cycle plays a pivotal role in regulating Earth’s surface environment through atmospheric-oceanic acid-base and redox processes, functioning as the engine driving the evolution of our planet’s surface. A deep understanding of the carbon cycle’s evolution is thus essential for our understanding of the evolution of our planet’s habitability.

关键词： carbon planet evolution

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IPA1： A New ＂Green Revolution＂ Gene？

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Molecular Plant 2017年第6期10卷 779-781页

作者： Baobao wang haiyang wang Biotechnology Research Institute Chinese Academy of Agricultural Sciences Beijing 100081 China

Rice （Oryza sativa） is not only the staple food for more than half of the world＇s population but also a model species for plant developmental and genetic studies. To meet the challenge of feeding an increasing popu... 详细信息

关键词： Green Revolution Southeast Asian countries United States

Numerical insight into heat transfer enhancement by granules inner-migration in a moving bed:A performance comparison between slanted-stick and plow-shaped agitator

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Particuology 2024年第6期89卷 109-116页

作者： Binfan Jiang Hao Pei Dehong Xia haiyang wang School of Energy and Environmental Engineering University of Science and Technology BeijingBeijing 100083China Shunde Graduate School of University of Science and Technology Beijing Guangdong 528399China Jianlong Group&USTB Joint Laboratory Beijing 100083China

Waste heat recovery of high-temperature granules is one of the most promising sustainable energy supply and carbon reduction ways for industry.A moving bed indirect heat exchanger(MBIHE)with inner-migration was proposed for granular heat *** migration and the enhanced heat transfer induced by two types of agitators(i.e.,agitator with slanted stick A_(s)and with plow-shaped surface A_(p))in the MBIHE are analyzed based on DEM coupled with *** to the effective agitation,the average heat transfer coefficient in the granule side is enhanced to∼3 times compared to that without *** heat recovery efficiency in the moving bed reached more than 70%with the agitations of either A_(s)or A_(p).The heat efficiency of A_(s)is∼7%higher than that of A_(p),but with at least 60%greater rotational *** ensure reliable agitation,the A_(p)is suggested to be adopted in the MBIHE to induce granule migration.

关键词： Waste heat recovery High-temperature granule Granule migration Heat transfer enhancement Industry energy saving

Integration of light and hormone signaling pathways in the regulation of plant shade avoidance syndrome

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aBIOTECH 2021年第2期2卷 131-145页

作者： Yang Liu Feresheeh Jafari haiyang wang Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources South China Agricultural UniversityGuangzhou 510642China Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou 510642China

As sessile organisms,plants are unable to move or escape from their neighboring competitors under high-density planting ***,they have evolved the ability to sense changes in light quantity and quality(such as a reduction in photoactive radiation and drop in red/far-red light ratios)and evoke a suite of adaptative responses(such as stem elongation,reduced branching,hyponastic leaf orientation,early flowering and accelerated senescence)collectively termed shade avoidance syndrome(SAS).Over the past few decades,much progress has been made in identifying the various photoreceptor systems and light signaling components implicated in regulating SAS,and in elucidating the underlying molecular mechanisms,based on extensive molecular genetic studies with the model dicotyledonous plant Arabidopsis ***,an emerging synthesis of the field is that light signaling integrates with the signaling pathways of various phytohormones to coordinately regulate different aspects of *** this review,we present a brief summary of the various cross-talks between light and hormone signaling in regulating *** also present a perspective of manipulating SAS to tailor crop architecture for breeding high-density tolerant crop cultivars.

关键词： Arabidopsis Shade avoidance syndrome(SAS) Light Hormones Signaling

Mining a coal seam below a heating goaf with a force auxiliary ventilation system at Longhua underground coal mine, China

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International Journal of Mining Science and Technology 2015年第1期25卷 67-72页

作者： wang Gang Xie Jun Xue Sheng wang haiyang State Key Laboratory of Mining Disaster Prevention and Control Shandong University of Science & Technology CSIRO Earth Science and Resource Engineering School of Mining Engineering Taiyuan University of Technology

Extraction of a coal seam which lies not far below a heating goafcan be a major safety challenge. A force auxiliary ventilation system was adopted as a control method in successful extraction and recovery of the panel 30110 of the #3-1 coal seam, which is about 30-40 rn below the heating goaf of the #2-2 seam at Longhua underground coal mine, Shanxi Province, China. Booster fans and ventilation control devices such as doors and regulators were used in the system. The results show that, provided that a force auxiliary ventilation system is properly designed to achieve a pressure balance between a panel and its overlying goat＇, the system can be used to extract a coal seam overlain by a heating goal. This paper describes the design, installation and performance of the ventilation system during the extraction and recovery phases of the oanel 30110.

关键词： Force auxiliary ventilation systemMining under a heating goafMultiple seams of close spacingPressure balance

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