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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。
正式出版
收录年代

    BTA2 regulates tiller angle and the shoot gravity response through controlling auxin content and distribution in rice

    Zhen LiJunhua YeQiaoling YuanMengchen Zhang...
    1966-1982页
    查看更多>>摘要：Tiller angle is a key agricultural trait that estab-lishes plant architecture,which in turn strongly affects grain yield by influencing planting density in rice.The shoot gravity response plays a crucial role in the regulation of tiller angle in rice,but the underlying molecular mechanism is largely un-known.Here,we report the identification of the BIG TILLER ANGLE2(BTA2),which regulates tiller angle by controlling the shoot gravity response in rice.Loss-of-function mutation of BTA2 dramati-cally reduced auxin content and affected auxin distribution in rice shoot base,leading to impaired gravitropism and therefore a big tiller angle.BTA2 interacted with AUXIN RESPONSE FACTOR7(ARF7)to modulate rice tiller angle through the gravity signaling pathway.The BTA2 protein was highly conserved during evolution.Sequence var-iation in the BTA2 promoter of indica cultivars harboring a less expressed BTA2 allele caused lower BTA2 expression in shoot base and thus wide tiller angle during rice domestication.Over-expression of BTA2 significantly increased grain yield in the elite rice cultivar Huanghuazhan under appropriate dense planting conditions.Our find-ings thus uncovered the BTA2-ARF7 module that regulates tiller angle by mediating the shoot gravity response.Our work offers a target for genetic manipulation of plant architecture and valuable information for crop improvement by producing the ideal plant type.
      原文链接:
    • 万方数据
    • 维普

    Mechanisms of vacuolar phosphate efflux supporting soybean root hair growth in response to phosphate deficiency

    Zhong ShanYanli ChuGuangfang SunRui Chen...
    1983-1999页
    查看更多>>摘要：Phosphorus is an essential macronutrient for plant growth and development.In response to phos-phate(Pi)deficiency,plants rapidly produce a substitutive amount of root hairs;however,the mechanisms underlying Pi supply for root hair growth remain unclear.Here,we observed that soybean(Glycine max)plants maintain a con-sistent level of Pi within root hairs even under external Pi deficiency.We therefore investigated the role of vacuole-stored Pi,a major Pi reservoir in plant cells,in supporting root hair growth under Pi-deficient conditions.Our findings indicated that two vacuolar Pi efflux(VPE)transporters,GmVPE1 and GmVPE2,remobilize vacuolar stored Pi to sustain cytosolic Pi content in root hair cells.Genetic analysis showed that double mutants of GmVPE1 and GmVPE2 exhibited reduced root hair growth under low Pi conditions.Moreover,GmVPE1 and GmVPE2 were highly expressed in root hairs,with their expression levels significantly upregulated by low Pi treatment.Further analysis revealed that GmRSL2(ROOT HAIR DEFECTIVE 6-like 2),a transcription factor involved in root hair morphogenesis,directly binds to the promoter regions of GmVPE1 and GmVPE2,and promotes their expressions under low Pi conditions.Addi-tionally,mutants lacking both GmRSL2 and its homolog GmRSL3 exhibited impaired root hair growth under low Pi stress,which was rescued by overexpressing either GmVPE1 or GmVPE2.Taken together,our study has identified a module comprising vacuolar Pi exporters and tran-scription factors responsible for remobilizing va-cuolar Pi to support root hair growth in response to Pi deficiency in soybean.
      原文链接:
    • 万方数据
    • 维普

    Rice stripe mosaic virus hijacks rice heading-related gene to promote the overwintering of its insect vector

    Siping ChenXinyi ZhongZhiyi WangBiao Chen...
    2000-2016页
    查看更多>>摘要：Rice stripe mosaic virus(RSMV)is an emerging pathogen which significantly reduces rice yields in the southern region of China.It is transmitted by the leafhopper Recilia dorsalis,which overwinters in rice fields.Our field investigations revealed that RSMV infection causes delayed rice heading,re-sulting in a large number of green diseased plants remaining in winter rice fields.This creates a favorable environment for leafhoppers and viruses to overwinter,potentially contributing to the rapid spread and epidemic of the disease.Next,we ex-plored the mechanism by which RSMV manipulates the developmental processes of the rice plant.A rice heading-related E3 ubiquitin ligase,Heading date Associated Factor 1(HAF1),was found to be hijacked by the RSMV-encoded P6.The impair-ment of HAF1 function affects the ubiquitination and degradation of downstream proteins,HEADING DATE 1 and EARLY FLOWERING3,leading to a delay in rice heading.Our results provide new insights into the development regulation-based molecular interactions between virus and plant,and highlights the importance of understanding virus-vector-plant tripartite interactions for effective disease management strategies.
      原文链接:
    • 万方数据

    A NAC transcription factor MNAC3-centered regulatory network negatively modulates rice immunity against blast disease

    Hui WangYan BiYuqing YanXi Yuan...
    2017-2041页
    查看更多>>摘要：NAC transcription factors(TFs)are pivotal in plant immunity against diverse pathogens.Here,we re-port the functional and regulatory network of MNAC3,a novel NAC TF,in rice immunity.MNAC3,a transcriptional activator,negatively modulates rice immunity against blast and bacterial leaf blight diseases and pathogen-associated molecular pat-tem(PAMP)-triggered immune responses.MNAC3 binds to a CACG cis-element and activates the transcription of immune-negative target genes OsINO80,OsJAZ10,and OsJAZ11.The negative function of MNAC3 in rice immunity depends on its transcription of downstream genes such as OsINO80 and OsJAZ10.MNAC3 interacts with immunity-related OsPP2C41(a protein phospha-tase),ONAC066(a NAC TF),and OsDjA6(a DnaJ chaperone).ONAC066 and OsPP2C41 attenuate MNAC3 transcriptional activity,while OsDjA6 pro-motes it.Phosphorylation of MNAC3 at S163 is critical for its negative functions in rice immunity.OsPP2C41,which plays positive roles in rice blast resistance and chitin-triggered immune responses,dephosphorylates MNAC3,suppressing its tran-scriptional activity on the target genes OsINO80,OsJAZ10,and OsJAZ11 and promoting the trans-location of MNAC3 from nucleus to cytoplasm.These results establish a MNAC3-centered regu-latory network in which OsPP2C41 dephosphor-ylates MNAC3,attenuating its transcriptional activity on downstream immune-negative target genes in rice.Together,these findings deepen our under-standing of molecular mechanisms in rice immunity and offer a novel strategy for genetic improvement of rice disease resistance.
      原文链接:
    • 万方数据
    • 维普

    A pair of nuclear factor Y transcription factors act as positive regulators in jasmonate signaling and disease resistance in Arabidopsis

    Chuyu LinChenghao LanXiaoxiao LiWei Xie...
    2042-2057页
    查看更多>>摘要：The plant hormone jasmonate(JA)regulates plant growth and immunity by orchestrating a genome-wide transcriptional reprogramming.In the resting stage,JASMONATE-ZIM DOMAIN(JAZ)proteins act as main repressors to regulate the expression of JA-responsive genes in the JA signaling pathway.However,the mechanisms underlying de-repression of JA-responsive genes in response to JA treatment remain elusive.Here,we report two nuclear factor Y transcription factors NF-YB2 and NF-YB3(thereafter YB2 and YB3)play key roles in such de-repression in Arabidopsis.YB2 and YB3 function redundantly and positively regulate plant resistance against the necrotrophic pathogen Botrytis cinerea,which are specially required for transcriptional activation of a set of JA-responsive genes following inoculation.Furthermore,YB2 and YB3 modulated their ex-pression through direct occupancy and interaction with histone demethylase Ref6 to remove repressive histone modifications.Moreover,YB2 and YB3 physically interacted with JAZ repressors and neg-atively modulated their abundance,which in turn attenuated the inhibition of JAZ proteins on the transcription of JA-responsive genes,thereby acti-vating JA response and promoting disease resist-ance.Overall,our study reveals the positive regu-lators of YB2 and YB3 in JA signaling by positively regulating transcription of JA-responsive genes and negatively modulating the abundance of JAZ proteins.
      原文链接:
    • 万方数据
    • 维普

    The actin motor protein OsMYA1 associates with OsExo70H1 and contributes to rice secretory defense by modulating OsSyp121 distribution

    Yuan-Bao LiChengyu LiuNingning ShenShuai Zhu...
    2058-2075页
    查看更多>>摘要：Magnaporthe oryzae(M.oryzae)is a devastating hemibiotrophic pathogen.Its biotrophic invasive hy-phae(IH)are enclosed in the extrainvasive hyphal membrane produced by plant cells,thus generating a front line of the battlefield between the pathogen and the host plants.In plants,defense-related complexes such as proteins,callose-rich materials and vesicles,are directionally secreted to this interface to confer defense responses,but the underlying molecular mechanism is poorly understood.In this study,we found that a Myosin gene,Myosin A1(OsMYA1),contributed to rice defense.The OsMYA1 knockout mutant exhibited decreased resistance to M.oryzae infection.OsMYA1 localizes to the actin cytoskeleton and surrounds the IH of M.oryzae.OsMYA1 interacts with an exocyst subunit,OsExo70H1,and regulates its accumulation at the plasma membrane(PM)and pathogen-plant interface.Furthermore,OsExo70H1 interacted with the rice syntaxin of the plants121 protein(OsSyp121),and the distribution of OsSyp121 to the PM or the pathogen-plant interface was dis-rupted in both the OsMYA1 and OsExo70H1 mutants.Overall,these results not only reveal a new function of OsMYA1 in rice blast resistance,but also uncover a molecular mechanism by which plants regulate defense against M.oryzae by OsMYA1-initiated vesicle secretory pathway,which originates from the actin cytoskeleton to the PM.
      原文链接:
    • 万方数据
    • 维普