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Root-derived long-distance signals trigger ABA synthesis and enhance drought resistance in Arabidopsis

Journal of Genetics and Genomics 2024年第7期51卷 749-761页

作者： Qian-Qian Liu Jin-Qiu xia Jie Wu Yi Han Gui-Quan Zhang ping-xia zhao Cheng-Bin xiang Division of Life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Interdisciplinary Sciences at the MicroscaleUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui 230027China College of Life Sciences Anhui Agricultural UniversityHefeiAnhui 230036China College of Agronomy South China Agricultural UniversityGuangzhouGuangdong 510642China School of Biology and Basic Medical Sciences Soochow UniversitySuzhouJiangsu 215123China

Vascular plants have evolved intricate long-distance signaling mechanisms to cope with environmental stress,with reactive oxygen species(ROS)emerging as pivotal systemic signals in plant stress ***,the exact role of ROS as root-to-shoot signals in the drought response has not been *** this study,we reveal that compared with wild-type plants,ferric reductase defective 3(frd3)mutants exhibit enhanced drought resistance concomitant with elevated NINE-CIS-EPOXYCAROTENOID DIOXYGENASE 3(NCED3)transcript levels and abscisic acid(ABA)contents in leaves as well as increased hydrogen peroxide(H_(2)O_(2))levels in roots and *** experiments distinctly illustrate that drought resistance can be conferred by the frd3 rootstock regardless of the scion genotype,indicating that long-distance signals originating from frd3 roots promote an increase in ABA levels in ***,the drought resistance conferred by the frd3 mutant rootstock is weakened by the CAT2-overexpressing scion,suggesting that H_(2)O_(2)may be involved in long-distance ***,the results of comparative transcriptome and proteome analyses support the drought resistance phenotype of the frd3 *** together,our findings substantiate the notion that frd3 root-derived long-distance signals trigger ABA synthesis in leaves and enhance drought resistance,providing new evidence for root-to-shoot long-distance signaling in the drought response of plants.

关键词： frd3 Drought resistance Root-to-shoot long-distance signals Reactive oxygen species(ROS) H_(2)O_(2) Iron ABA

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Knockout of OsSPL10 confers enhanced glufosinate resistance in rice

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Plant Communications 2024年第2期5卷 7-10页

作者： Jin-Qiu xia Qin-Yu Liang Da-Yu He Zheng-Yi Zhang Jie Wu Jing Zhang ping-xia zhao Zi-Sheng Zhang Cheng-Bin xiang Division of Life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui Province 230027China

Dear Editor,Rice(Oryza sativa L.)is one of the world’s major food crops,feeding more than half of the global *** reduce labor and production costs,direct seeding is becoming popular for rice cultivation,but weeds have become a serious problem(Jin et al.,2022).Chemical herbicides are one of the most effective ways to control ***,the development of herbicide-resistant rice has great significance for modern rice production.

关键词： crops population. weed

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Corrigendum to“Root-derived long-distance signals trigger ABA synthesis and enhance drought resistance in Arabidopsis”[Journal of Genetics and Genomics(2024)51,749e761]

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Journal of Genetics and Genomics 2024年第8期51卷 888-888页

This corrigendum clarifies to supplement the“Data availability”*** availability The raw sequence data reported in this paper have been deposited in the National Genomics Data Center,China National Center for Bioinfo... 详细信息

关键词： Root drought synthesis

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A Disulfide-Based Poly(ether-b-amide)Copolymer with Rapid Self-healing Ability under Moderate Conditions

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Chinese Journal of Chemistry 2024年第9期42卷 943-950页

作者： Weijan Lu ping Zhu Ying zhao Dujin Wang xia Dong Institute of Chemistry Chinese Academy of SciencesBeijing 100190China Schoolof Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China

Comprehensive Summary A disulfide-based poly(ether-b-amide)copolymer with rapid self-healing capability under moderate conditions was synthesized from 4,4’-dithiodibutyric acid(DTDBA),isophorondiamine(IPDA)and poly(tetramethylene oxide)(PTMO)based on a two-step *** incorporation of IPDA with asymmetric structure and substantial steric hindrance not only effectively decreased the number of regular H-bonds,but also inhibited the crystallization of polyamide segments,imparting the synthesized poly(ether-b-amide)copolymer with an amorphous structural *** on the coordination of segmental diffusion and recombination of disulfide bonds and hydrogen bonds,the scratches and damaged mechanical properties of PEBADS-I611 could be completely self-healed after healing at 40°C for only 11 min and 3 h,respectively.

关键词： Poly(ether-b-amide)copolymer Disulfide bonds Hydrogen bonds Polycondensation Smart polymers Self-healing

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MicroRNA let-7 targets BmCDK1 to regulate cell proliferation and endomitosis of silk gland in the silkworm,Bombyx mori

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Insect Science 2024年第4期31卷 1026-1040页

作者： Wei Wang Linshengzhe Ji Xinyuan Jing ping zhao Qingyou xia Integrative Science Center of Germplasm Creation in Western China(Chongqing)Science City Biological Science Research CenterSouthwest UniversityChina Key Laboratory for Germplasm Creation in Upper Reaches of the Yangtze River Ministry of Agriculture and Rural AffairsChongqingChina Engineering Laboratory of Sericultural and Functional Genome and Biotechnology Development and Reform CommissionChongqingChina

MicroRNAs play critical roles in multiple developmental processes in *** previous study showed that CRISPR/Cas9-mediated knock down of the microRNA let-7 in silkworms increased the size of larvae and silk glands,thereby improving the silk production *** this study,we elucidate the molecular mechanism underlying of let-7 regulates *** of differentially expressed genes in response to let-7 knock down revealed enrichment of pathways associated with cell proliferation and DNA ***-7 dysregulation affected the cell cycle and proliferation of the Bombyx mori cell line ***-luciferase and target site mutation assays showed that BmCDK1 is a direct target gene of let-7,with only 1 binding site on its 3′-untranslated *** interference of BmCDK1 inhibited cell proliferation,but this effect was counteracted by co-transfection with let-7 ***,let-7 knock down induced BmCDK1 expression and promoted cell proliferation in multiple tissues,and further induced endomitosis in the silk gland in *** down of BmCDK1 resulted in abnormal formation of a new epidermis,and larval development was arrested at the 2nd or 3rd molt *** together,our results demonstrated that BmCDK1 is a novel target of let-7 in cell fate determination,possessing potential for improving silk yield in silkworm.

关键词： BmCDKI CRISPR/Cas9 cell proliferation let-7 silkworm

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Arabidopsis MADS-Box Transcription Factor AGL21 Acts as Environmental Surveillance of Seed Germination by Regulating ABI5 Expression

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Molecular Plant 2017年第6期10卷 834-845页

作者： Lin-Hui Yu Jie Wu Zi-Sheng Zhang Zi-Qing Miao ping-xia zhao Zhen Wang Cheng-Bin xiang School of Life Sciences University of Science and Technology of China Hefei Anhui Province 230027 China Shanghai Center for Plant Stress Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 200032 China

Seed germination is a crucial checkpoint for plant survival under unfavorable environmental conditions. Ab- scisic acid （ABA） signaling plays a vital role in integrating environmental information to regulate seed germination. It has been well known that MCMI/AGAMOUS/DEFICIENS/SRF （MADS）-box transcription factors are key regulators of seed and flower development in Arabidopsis. However, little is known about their functions in seed germination. Here we report that MADS-box transcription factor AGL21 is a negative regulator of seed germination and post-germination growth by controlling the expression of ABA-INSENSITIVE 5 （ABIb＇） in Arabidopsis. The AGL21-overexpressing plants were hypersensitive to ABA, salt, and osmotic stresses during seed germination and early post-germination growth, whereas ag121 mutants were less sensitive. We found that AGL21 positively regulated ABI5 expression in seeds. Consistently, genetic analyses showed that AGL21 is epistatic to ABI5 in controlling seed germination. Chromatin immunoprecipitation assays further demonstrated that AGL21 could directly bind to the ABI5 promoter in plant cells. Moreover, we found that AGL21 responded to multiple environmental stresses and plant hormones during seed germination. Taken together, our results suggest that AGL21 acts as a surveillance integrator that incorporates environmental cues and endogenous hormonal signals into ABA signaling to regulate seed germination and early post-germination growth.

关键词： MADS AGL21 seed germination ABA ABI5

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Highly efficient expression of human extracellular superoxide dismutase(rhEcSOD)with ultraviolet-B-induced damage-resistance activity in transgenic silkworm cocoons

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Insect Science 2024年第4期31卷 1150-1164页

作者： Feng Wang Ri-Yuan Wang De-Bin Zhong ping zhao Qing-You xia Integrative Science Center of Germplasm Creation in Western China(CHONGQING)Science City Biological Science Research CenterSouthwest UniversityChongqingChina Century Legend Biotechnology Research Institute(Chongqing)Co. Ltd.ChongqingChina

Extracellular superoxide dismutase(EcSOD)protects tissues from oxidative stress,and thus is considered as a therapeutic agent for many diseases such as atherosclerosis,hypertension,and ***,cost-effective production of bioactive recombinant human EcSOD(rhEcSOD)remains a ***,we developed an efficient strategy for producing active rhEcSOD by transgenic *** was successfully synthesized as homodimers and homotetramers in the middle silk gland and spun into the cocoons with a concentration of 9.48±0.21 mg/*** of rhEcSOD from the cocoons could be conveniently achieved with a purity of 99.50%and a yield of 3.5±0.5 mg/***,N-glycosylation at the only site of N89 in rhEcSOD with 10 types were *** purified rhEcSOD gained the potent enzymatic activity of 4162±293 U/mg after Cu/Zn ions *** importantly,rhEcSOD was capable of penetrating and accumulating in the nuclei of cells to maintain cell morphology and attenuate ultraviolet B-induced cell apoptosis by eliminating reactive oxygen species and inhibiting the C-Jun N-terminal kinase signaling *** results demonstrated that the transgenic silkworm could successfully produce rhEcSOD with enzymatic and biological activities for biomedical applications.

关键词： antioxidant human extracellular superoxide dismutase recombinant expression silkworm silk gland

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Cyclic Pulsating Pressure Enhanced Segregating Structuration of Ultra-High Molecular Weight Polyethylene/Graphene Composites as High-performance Light-Weight EMI Shields

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Chinese Journal of Polymer Science 2024年第7期42卷 958-967,I0008页

作者： Yun-Zhi Huang xiao-xiao Liu Lan-Wei Li Guang-Ming Huang zhao-xia Huang Jin-ping Qu National Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing EngineeringMinistry of EducationGuangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced ManufacturingSchool of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou 510641China School of Advanced Manufacturing Technology Guangdong Mechanical&Electrical PolytechnicGuangzhou 510550China

Currently,the enhancement in electromagnetic interference(EMI)performance of polymeric composite generally relies on either improving electrical conductivity(σ)for stronger electromagnetic(EM)reflections or tailoring structure for higher EM ***,we proposed a novel technique called cyclic pulsating pressure enhanced segregating structuration(CPP-SS),which can reinforce these two factors *** structural information was supplied by optical microscopy(OM)and scanning electron microscopy(SEM),both of which confirmed the formation and evolution of segregate structured ultra-high molecular weight polyethylene(UHMWPE)/graphene ***,the result showed that CPP-SS can significantly improve theσof ***,advanced specific EMI shielding efficiency of 31.1 d B/mm was achieved for UHMWPE/graphene composite at 1-mm thickness and a low graphene loading of 5 wt%.Meanwhile,it also confirmed that the intrinsic disadvantage of poor mechanical properties of conventional segregated structure composites can be *** work is believed to provide a fundamental understanding of the structural and performance evolutions of segregated structured composites prepared under CPPSS,and to bring us a simple and efficient approach for fabricating high-performance,strong and light-weight polymeric EMI shields.

关键词： Cyclic pulsating pressure Segregated structure Ultra-high molecular weight polyethylene Graphene Electromagnetic interface

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Understanding Human and Machine Interaction from Decision Perspective: An Empirical Study Based on the Game of Go

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Journal of Systems Science & Complexity 2024年第2期37卷 647-667页

作者： zhao ping LI Xuerong WANG Shouyang Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100190China

The authors aim to interpret human and AI interactions from the decision *** authors decompose the interaction analysis into the following main components in the context of interactions:Individual behavior patterns,interaction relationships,and comprehensive *** authors interpret intertemporal decisions from a physical perspective and employ cross-discipline concepts and methodologies to extract the behavior characteristics of players in the empirical case *** the individual behavior patterns,the authors find that human players prefer short-term periods to AI in *** interaction relationship analysis reveals a dynamic relationship between possible short-term co-movement and nearly counter-movement in the long *** authors apply principal component analysis to descriptive indicators and discover a regular decision *** main behavior pattern of players in the game of Go is switching between careful and daring *** differences in the decision hierarchies imply a discrepancy of patience between humans and AI.

关键词： Coherence analysis decision hierarchy machine behaviour multitaper spectral analysis

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Loss of OsARF18 function confers glufosinate resistance in rice

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Molecular Plant 2023年第9期16卷 1355-1358页

作者： Jin-Qiu xia Da-Yu He Qin-Yu Liang Zheng-Yi Zhang Jie Wu Zi-Sheng Zhang Jing Zhang Lin Wang Cong-He Zhang ping-xia zhao Cheng-Bin xiang Division of Life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui ProvinceChina Win-All Hi-Tech Seed Co.HefeiAnhui ProvinceChina

Dear Editor,Weeds are one of the most common biotic stresses causing severe crop yield decline(Jin et al.,2022).Chemical herbicides are an economical and effective method for weed control and are widely used in modern agriculture(Amna et al.,2019).However,the improper use of herbicides can impede crop growth,ultimately leading to reduced crop ***,it is of great significance to develop herbicide-resistant crops to alleviate weed infestations and maintain sustainable crop production.

关键词： crops weed maintain

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