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Molecular plant 2024年第2期17卷 297-311页

作者： Min Zhang Weiwei Li Tingyu Zhang Yueyan Liu Lijing Liu The key laboratory of plant development and environmental adaptation biology Ministry of EducationSchool of Life SciencesShandong UniversityQingdao 266237China

Jasmonic acid(JA)is a crucial phytohormone that regulates plant *** endogenous JA level is determined by the rates of its biosynthesis and catabolism in *** activation of JA biosynthesis has been well documented;however,how plants repress JA catabolism upon pathogen infection remains *** this study,we identified and characterized Botrytis cinerea-induced F-box protein 1(BFP1)in *** expression of BFP1 was induced by *** in a JA signaling-dependent manner,and BFP1 protein was critical for plant defense against *** and plant response to *** addition,BFP1 overexpression increased plant defenses against broad-spectrum pathogens without fitness *** experiments demonstrated that BFP1 interacts with and mediates the ubiquitination and degrada-tion of jasmonic acid oxidases(JAOs,also known as jasmonate-induced oxygenases,JoXs),the enzymes that hydroxylate JA to *** with this,BFP1 affects the accumulation of JA and 12OH-JA during *** ***,mutation of JAo2 complemented the phenotypes of the bfp1 ***,our results unveil a new mechanism used by plants to activate immune responses upon path-ogeninfection:suppressing JA catabolism.

关键词： plant immunity BFP1 JAO/JOXs JA catabolism ubiquitination-mediated degradation

TaSRO1 interacts with TaVP1 to modulate seed dormancy and pre-harvest sprouting resistance in wheat

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Journal of Integrative plant biology 2024年第1期66卷 36-53页

作者： Shupeng Liu Li Li Wenlong Wang Guangmin Xia Shuwei Liu key laboratory of plant development and environmental adaptation biology Ministry of EducationSchool of Life ScienceShandong UniversityQingdao 266237China

Dormancy is an adaptive trait which prevents seeds from germinating under unfavorable environmental *** with weak dormancy undergo pre-harvest sprouting(PHS)which decreases grain yield and *** the genetic mechanisms that regulate seed dormancy and resistance to PHS is crucial for ensuring global food *** this study,we illustrated the function and molecular mechanism of TaSRO1 in the regulation of seed dormancy and PHS resistance by suppressing *** tasro1 mutants exhibited strong seed dormancy and enhanced resistance to PHS,whereas the mutants of tavp1 displayed weak *** evidence has shown that TaVP1 is epistatic to *** evidence has shown that TaSRO1 interacts with TaVP1 and represses the transcriptional activation of the PHS resistance genes TaPHS1 and ***,TaSRO1 undermines the synergistic activation of TaVP1 and TaABI5 in PHS resistance ***,we highlight the great potential of tasro1 alleles for breeding elite wheat cultivars that are resistant to PHS.

关键词： wheat seed dormancy pre-harvest sprouting(PHS) ABA signaling vivipary

GmDFB1,an ARM-repeat superfamily protein,regulates floral organ identity through repressing siRNA-and miRNA-mediated gene silencing in soybean

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Journal of Integrative plant biology 2024年第8期66卷 1620-1638页

作者： Jie Li Wenxiao Zhang Qing Lu Jiaqi Sun Chuang Cheng Shiyu Huang Shuo Li Qiang Li Wei Zhang Chuanen Zhou Bin Liu Fengning Xiang The key laboratory of plant development and environmental adaptation biology Ministry of EducationSchool of Life SciencesShandong UniversityQingdao 266237China State key laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

The development of flowers in soybean(Glycine max)is essential for determining the yield potential of the *** silencing pathways are involved in modulating flower development,but their full elucidation is still ***,we conducted a forward genetic screen and identified an abnormal flower mutant,deformed floral bud1-1(Gmdfb1-1),in *** mapped and identified the causal gene,which encodes a member of the armadillo(ARM)-repeat *** small RNA sequencing(sRNA-seq),we found an abnormal accumulation of small interfering RNAs(si RNAs)and microRNA(miRNAs)in the Gmdfb1 *** further demonstrated that GmDFB1 interacts with the RNA exosome cofactor SUPER KILLER7(Gm SKI7).Additionally,GmDFB1 interacts with the PIWI domain of ARGONAUTE 1(GmAGO1)to inhibit the cleavage efficiency on the target genes of s *** enhanced gene silencing mediated by siRNA and miRNA in the Gmdfb1 mutants leads to the downregulation of their target genes associated with flower *** study revealed the crucial role of GmDFB1 in regulating floral organ identity in soybean probably by participating in two distinct gene silencing pathways.

关键词： ARM-repeat superfamily protein ARGONAUTE 1 SUPER KILLER 7 flower development gene silencing small RNAs soybean

Reactive oxygen species:Multidimensional regulators of plant adaptation to abiotic stress and development

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Journal of Integrative plant biology 2024年第3期66卷 330-367页

作者： Pengtao Wang Wen-Cheng Liu Chao Han Situ Wang Ming-Yi Bai Chun-Peng Song State key laboratory of Crop Stress adaptation and Improvement School of Life SciencesHenan UniversityKaifeng 475004China The key laboratory of plant development and environmental adaptation biology Ministry of EducationSchool of Life SciencesShandong UniversityQingdao 266237China Faculty of Science McGill UniversityMontreal H3B1X8Canada

Reactive oxygen species(ROS)are produced as undesirable by-products of metabolism in various cellular compartments,especially in response to unfavorable environmental conditions,throughout the life cycle of *** ROS production disrupts normal cellular function and leads to oxidative *** cope with excessive ROS,plants are equipped with a sophisticated antioxidative defense system consisting of enzymatic and non-enzymatic components that scavenge ROS or inhibit their harmful effects on ***,when maintained at relatively low levels,ROS act as signaling molecules that regulate plant growth,development,and adaptation to adverse ***,we provide an overview of current approaches for detecting *** also discuss recent advances in understanding ROS signaling,ROS metabolism,and the roles of ROS in plant growth and responses to various abiotic stresses.

关键词： abiotic stress growth and development plant reactive oxygen species

TaCHP encoding C1-domain protein stably enhances wheat yield in saline-alkaline fields

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Journal of Integrative plant biology 2024年第2期66卷 169-171页

作者： Guilian Xiao Minqin Wang Xiaomeng Li Zhengning Jiang Hongjian Zhang Derong Gao Boqiao Zhang Guangmin Xia Mengcheng Wang The key laboratory of plant development andenvironment adaptation biology Ministry of Education School of Life ScienceShandong UniversityQingdao 266237China key laboratory of Wheat biology and GeneticImprovement for Low&Middle Yangtze Valley Ministry ofAgriculture Lixiahe Agricultural Institute of Jiangsu ProvinceYangzhou 225007China

Salt and saline-alkaline stress seriously threaten crop production and food security worldwide(Yang and Guo,2018).Identifying genes that confer tolerance to these conditions without yield penalty would help mitigate this problem through molecular breeding(Liang et al.,2023;Sahu and Liu,2023).Although numerous stress-tolerance genes have been identified,their application potential in molecular breeding has rarely been confirmed through multi-year and multi-site field trials.

关键词： breeding fir alkaline

Maize ZmSRO1e promotes mesocotyl elongation and deep sowing tolerance by inhibiting the activity of ZmbZIP61

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Journal of Integrative plant biology 2024年第8期66卷 1571-1586页

作者： Lumin Qin Fangfang Kong Lin Wei Minghan Cui Jianhang Li Chen Zhu Yue Liu Guangmin Xia Shuwei Liu key laboratory of plant development and environmental adaptation biology Ministry of EducationSchool of Life ScienceShandong UniversityQingdao 266237China Crop Research Institute Anhui Academy of Agricultural SciencesHefeiAnhui Province 230031China

Deep sowing is a traditional method for drought resistance in maize production,and mesocotyl elongation is strongly associated with the ability of maize to germinate from deep ***,little is known about the functional genes and mechanisms regulating maize mesocotyl *** the present study,we identified a plant-specific SIMILAR TO RCD-ONE(SRO) protein family member,ZmSRO1e,involved in maize mesocotyl *** expression of ZmSRO1e is strongly inhibited upon transfer from dark to white *** loss-of-function zmsro1e mutant exhibited a dramatically shorter mesocotyl than the wild-type in both constant light and darkness,while overexpression of ZmSRO1e significantly promoted mesocotyl elongation,indicating that ZmSRO1e positively regulates mesocotyl *** showed that ZmSRO1e physically interacted with Zmb ZIP61,an ortholog of Arabidopsis ELONGATED HYPOCOTYL 5(HY5) and showed a function similar to that of HY5 in regulating *** found that ZmSRO1e repressed the transcriptional activity of Zmb ZIP61 toward target genes involved in the regulation of cell expansion,such as ZmEXPB4 and ZmEXPB6,by interfering with the binding of ZmbZIP61 to the promoters of target *** results provide a new understanding of the mechanism by which SRO regulates photomorphogenesis and highlight its potential application in deep sowing-resistant breeding.

关键词： deep sowing HY5 maize Mesocotyl SRO

MYB2 and MYB108 regulate lateral root development by interacting with LBD29 in Arabidopsis thaliana

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Journal of Integrative plant biology 2024年第8期66卷 1675-1687页

作者： Feng Zhang Junxia Wang Tingting Ding Xuefeng Lin Haiying Hu Zhaojun Ding Huiyu Tian The key laboratory of plant development and environmental adaptation biology Ministry of EducationSchool of Life SciencesShandong UniversityQingdao 266237China Advanced Medical Research Institute Cheeloo College of MedicineShandong UniversityJinan 250012China

AUXIN RESPONSE FACTOR 7(ARF7)-mediated auxin signaling plays a key role in lateral root(LR)development by regulating downstream LATERAL ORGAN BOUNDARIES DOMAIN(LBD)transcription factor genes,including LBD16,LBD18,and *** proteins are believed to regulate the transcription of downstream genes as homodimers or ***,whether LBD29 forms dimers with other proteins to regulate LR development remains ***,we determined that the Arabidopsis thaliana(L.)*** transcription factors MYB2 and MYB108 interact with LBD29 and regulate auxin-induced LR *** MYB2 and MYB108 were induced by auxin in an ARF7-dependent *** of MYB2 by fusion with an SRDX domain severely affected auxin-induced LR formation and the ability of LBD29 to induce LR *** contrast,overexpression of MYB2 or MYB108 resulted in greater LR numbers,except in the lbd29 mutant *** findings underscore the interdependence and importance of MYB2,MYB108,and LBD29 in regulating LR *** addition,MYB2–LBD29 and MYB108–LBD29 complexes promoted the expression of CUTICLE DESTRUCTING FACTOR 1(CDEF1),a member of the GDSL(Gly-Asp-Ser-Leu)lipase/esterase family involved in LR *** summary,this study identified MYB2–LBD29 and MYB108–LBD29 regulatory modules that act downstream of ARF7 and intricately control auxin-mediated LR development.

关键词： ARF7 auxin lateral roots LBD29 MYB108 MYB2

Building a domain-specific compiler for emerging processors with a reusable approach

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Science China(Information Sciences) 2024年第1期67卷 20-38页

作者： Mingzhen LI Yi LIU Bangduo CHEN Hailong YANG Zhongzhi LUAN Depei QIAN State key laboratory of Software development environment School of Computer Science and Engineering Beihang University

High-performance computing and deep learning domains have been motivating the design of domain-specific *** these processors can provide promising computation capability,they are notorious for exotic programming *** improve programming productivity and fully exploit the performance potential of these processors,domain-specific compilers(DSCs) have been ***,building DSCs for emerging processors requires tremendous engineering efforts because the commonly used compilation stack is difficult to be *** to the advent of multilevel intermediate representation(MLIR),DSC developers can leverage reusable infrastructure to extend their customized functionalities without rebuilding the entire compilation *** this paper,we further demonstrate the effectiveness of MLIR by extending its reusable infrastructure to embrace a heterogeneous many-core processor(Sunway processor).In particular,we design a new Sunway dialect and corresponding backend for the Sunway processor,fully exploiting its architectural advantage and hiding its programming *** show the ease of building a DSC,we leverage the Sunway dialect and existing MLIR dialects to build a stencil compiler for the Sunway *** experimental results show that our stencil compiler,built with a reusable approach,can even perform better than state-of-the-art stencil compilers.

关键词： domain-specific compiler emerging processor reusable dialect performance optimization MLIR

JA-mediated MYC2/LOX/AOS feedback loop regulates osmotic stress response in tea plant

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Horticultural plant Journal 2024年第3期10卷 931-946页

作者： Junyan Zhu Hongrong Chen Lu Liu Xiaobo Xia Xiaomei Yan Xiaozeng Mi Shengrui Liu Chaoling Wei State key laboratory of Tea plant biology and Utilization/key laboratory of Tea biology and Tea Processing of Ministry of Agriculture/Anhui Provincial laboratory of Tea plant biology and Utilization Anhui Agricultural UniversityHefeiAnhui 230036China

Osmotic stress caused by low-temperature,drought and salinity was a prevalent abiotic stress in plant that severely inhibited plant development and agricultural yield,particularly in tea *** acid(JA)is an important phytohormone involving in plant ***,underlying molecular mechanisms of JA modulated osmotic stress response remains *** this study,high concentration of mannitol induced JA accumulation and increase of peroxidase activity in tea *** transcriptome mined a JA signaling master,MYC2 transcription factor is shown as a hub regulator that induced by mannitol,expression of which positively correlated with JA biosynthetic genes(LOX and AOS)and peroxidase genes(PER).CsMYC2 was determined as a nuclei-localized transcription activator,furthermore,ProteinDNA interaction analysis indicated that CsMYC2 was positive regulator that activated the transcription of CsLOX7,CsAOS2,CsPER1 and CsPER3via bound with their promoters,*** of CsMYC2 expression resulted in a reduced JA content and peroxidase activity and osmotic stress tolerance of tea *** of CsMYC2 in Arabidopsis improved JA content,peroxidase activity and plants tolerance against mannitol ***,we proposed a positive feedback loop mediated by CsMYC2,CsLOX7 and CsAOS2 which constituted to increase the tolerance of osmotic stress through fine-tuning the accumulation of JA levels and increase of POD activity in tea plant.

关键词： Camellia sinensis Jasmonic acid(JA) MYC2 transcription factor Lipoxygenase(LOX) Osmotic stress Peroxidase(POD) Reactive oxygen species(ROS)

Eat at the right time: Regulation of ER-phagy receptors in plant response to environmental stresses

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Molecular plant 2024年第2期17卷 236-239页

作者： Yang Shao Jiaqi Sun Huanquan Zheng The key laboratory of plant development and environmental adaptation biology Ministry of EducationSchool of Life SciencesShandong UniversityQingdao 266237China Department of biology McGill UniversityMontrealQC H3A 1B1Canada

The endoplasmic reticulum(ER)is a cellular factory for biosynthesis of proteins and *** accommodate a wide array of biosynthetic demands in responses to environmental stresses,the plant ER remodels to maintain a structural and functional homeostasis.A key process facilitating this balance is selective autophagy of the ER(ER-phagy),where malfunctioned ER is recognized,engulfed by autophagosomes,and then delivered to the vacuole for degradation.

关键词： maintain accommodate function