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植物学报（英文版）
植物学报（英文版）

刘春明

月刊

1672-9072

jipb@ibcas.ac.cn

010-62836133，010-62836563

100093

北京香山南辛村20号中科院植物所内

植物学报（英文版）/Journal Journal of Integrative Plant BiologyCSCDCSTPCD北大核心SCI
查看更多>>本学报是植物学综合性学术期刊。国外发行与交换达40多个国家和地区。国际标准A4大16开铜版纸印刷。本学报力争全面反映我国植物科学的最新研究成果，关注国际热点、新的学科生长点、前沿研究课题，重视报道重要的应用基础研究。主要栏目有植物生理生化、植物遗传学和分子生物学、植物生殖生物学、结构植物学、植物化学与资源植物学、植物系统与进化、植物生态学、古植物学的原始研究论文、综述和快讯。
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    OsWRKY78 regulates panicle exsertion via gibberellin signaling pathway in rice

    Enyang MeiMingliang HeMin XuJiaqi Tang...
    771-786页
    查看更多>>摘要：Panicle exsertion is one of the crucial agronomic traits in rice(Oryza sativa).Shortening of panicle exsertion often leads to panicle enclosure and severely reduces seed production.Gibberellin(GA)plays important roles in regulating panicle exsertion.However,the underlying mechanism and the relative regulatory network remain elusive.Here,we characterized the oswrky78 mutant showing severe panicle enclosure,and found that the defect of oswrky78 is caused by decreased bioactive GA contents.Biochemical analysis demonstrates that OsWRKY78 can directly acti-vate GA biosynthesis and indirectly suppress GA metabolism.Moreover,we found OsWRKY78 can interact with and be phosphorylated by mitogen-activated protein kinase(MAPK)kinase Os-MAPK6,and this phosphorylation can enhance OsWRKY78 stability and is necessary for its bio-logical function.Taken together,these results not only reveal the critical function of OsWRKY78,but also reveal its mechanism via mediating crosstalk between MAPK and the GA signaling pathway in regulating panicle exsertion.
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    • 维普

    The RING zinc finger protein LbRZF1 promotes salt gland development and salt tolerance in Limonium bicolor

    Zongran YangZiwei ZhangZiqi QiaoXueying Guo...
    787-809页
    查看更多>>摘要：The recretohalophyte Limonium bicolor thrives in high-salinity environments because salt glands on the above-ground parts of the plant help to expel excess salt.Here,we characterize a nucleus-localized C3HC4(RING-HC)-type zinc finger protein of L.bicolor named RING ZINC FINGER PROTEIN 1(LbRZF1).LbRZF1 was expressed in salt glands and in response to NaCl treatment.LbRZF1 showed no E3 ubiquitin ligase activity.The phenotypes of overexpression and knockout lines for LbRZF1 indicated that LbRZF1 positively regulated salt gland development and salt tolerance in L.bicolor.Ibrzf1 mutants had fewer salt glands and secreted less salt than did the wild-type,whereas LbRZF1-overexpressing lines had opposite phenotypes,in keeping with the overall salt tolerance of these plants.A yeast two-hybrid screen revealed that LbRZF1 interacted with LbCATALASE2(LbCAT2)and the transcription factor LbMYB113,leading to their stabilization.Silencing of LbCAT2 or LbMYB113 decreased salt gland density and salt tolerance.The heterologous expression of LbRZF1 in Arabidopsis thaliana conferred salt tolerance to this non-halophyte.We also identified the tran-scription factor LbMYB48 as an upstream regulator of LbRZF1 transcription.The study of LbRZF1 in the regulation network of salt gland development also provides a good foundation for transforming crops and improving their salt resistance.
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    A widely targeted metabolite modificomics strategy for modified metabolites identification in tomato

    Jun YangRidong ChenChao WangChun Li...
    810-823页
    查看更多>>摘要：The structural and functional diversity of plant metabolites is largely created via chemical mod-ification of a basic backbone.However,metabolite modifications in plants have still not been thor-oughly investigated by metabolomics approaches.In this study,a widely targeted metabolite modifi-comics(WTMM)strategy was developed based on ultra-high performance liquid chromatography-quadrupole-linear ion trap(UHPLC-Q-Trap)and UHPLC-Q-Exactive-Orbitrap(UHPLC-QE-Orbitrap),which greatly improved the detection sensitivity and the efficiency of identification of modified metabolites.A metabolite modificomics study was carried out using tomato as a model,and over 34,000 signals with MS2 information were obtained from approximately 232 neutral loss transitions.Unbiased metabolite profiling was also performed by utilizing high-resolution mass spectrometry data to annotate a total of 2,118 metabolites with 125 modification types;of these,165 modified metabolites were identi-fied in this study.Next,the WTMM database was used to assess diseased tomato tissues and 29 biomarkers were analyzed.In summary,the WTMM strategy is not only capable of large-scale detection and quantitative analysis of plant-modified metabolites in plants,but also can be used for plant biomarker development.
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    • 维普

    Genomic analysis of Nypa fruticans elucidates its intertidal adaptations and early palm evolution

    Weihong WuXiao FengNan WangShao Shao...
    824-843页
    查看更多>>摘要：Nypa fruticans(Wurmb),a mangrove palm species with origins dating back to the Late Cretaceous period,is a unique species for in-vestigating long-term adaptation strategies to intertidal environments and the early evolution of palms.Here,we present a chromosome-level genome sequence and assembly for N.fruticans.We integrated the genomes of N.fruticans and other palm family members for a comparative genomic analysis,which confirmed that the common ancestor of all palms experienced a whole-genome duplication event around 89 million years ago,shaping the distinctive characteristics observed in this clade.We also inferred a low mutation rate for the N.fruticans genome,which underwent strong purifying selection and evolved slowly,thus contributing to its stability over a long evolutionary period.Moreover,an-cient duplicates were preferentially retained,with critical genes having experienced positive selection,enhancing waterlogging tolerance in N.fruticans.Furthermore,we discovered that the pseudogenization of Early Methionine-labelled 1(EM1)and EM6 in N.fruticans underly its crypto-vivipary characteristics,reflecting its intertidal adaptation.Our study provides val-uable genomic insights into the evolutionary history,genome stability,and adaptive evolution of the mangrove palm.Our results also shed light on the long-term adaptation of this species and contribute to our understanding of the evo-lutionary dynamics in the palm family.
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