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| 1 | 新中国成立70年来植物激素研究进展显示文摘植物激素是指植物通过自身代谢产生的,在很低浓度下就能产生明显生理效应的一些有机信号分子,在植物生长发育及环境响应过程中具有至关重要的作用.中国科学家利用植物组织离体培养、以突变体为主导的分子遗传学手段及以水稻农艺性状为核心的植物激素研究策略,在植物激素的生理功能、生物合成及代谢、信号感知及传导等方面均取得了较大的成就,较好地推动了植物激素的理论研究及生产应用.本文主要总结了我国科学家在生长素、细胞分裂素、油菜素甾醇、赤霉素、乙烯、脱落酸、茉莉素、水杨酸、独脚金内酯及多肽激素研究中取得的重要进展,以此来启发并激励我国年轻一代植物学家能在植物激素研究中取得更多具有原始创新性的研究成果. | 黎家 李传友 | 2019 | 中国科学:生命科学2019，49，10： | 130 |
| 2 | 油菜素甾醇类激素的生物合成、代谢及信号转导显示文摘油菜素甾醇(brassinosteroids,BRs)是植物中的一类类固醇激素,可调控许多至关重要的生长发育过程。BR特异的生物合成由CR(campesterol)起始,经由多条途径,受DWF4、CPD、DET2、ROT3/CYP90D1、Ps DDWF1、BR6ox1/2等生物合成酶的催化最终形成生物活性最高的BR,即油菜素内酯(brassinolide,BL)。其中不依赖于CN(campestanol)的一条八步合成途径,在拟南芥中被证明是最主要的生物合成途径。BR代谢产物众多,但目前已发现相关酶的代谢方式仅包括羟基化、糖基化、磺酰化、还原反应和酰基化。BR信号由细胞质膜上的受体BRI1和共受体BAK1的胞外结构域共同感知,进而引起抑制因子BKI1从BRI1上解离,并使BRI1和BAK1的激酶结构域相互作用并相互磷酸化激活,激活的BRI1可磷酸化激活BSKs和CDGs,BSKs和CDGs再激活下游磷酸酶BSU1,BSU1可去磷酸化失活负调元件BIN2,从而解除BIN2对下游转录因子BZR1和BES1的磷酸化抑制,非磷酸化的BZR1和BES1进入细胞核正调或负调多种靶基因。 | 孙超 黎家 | 2017 | 植物生理学报2017，53，3： | 23 |
| 3 | Structural basis for recognition of an endogenous peptide by the plant receptor kinase PEPR1显示文摘在从他们的先锋蛋白质 PROPEP1-8 的保存 C 终端部分成熟的 Arabidopsis 的内长的肽 AtPep1-8 分别地。二相应充满白氨酸的重复受体 kinases (LRR-RKs ) PEPR1 和 PEPR2 充当 AtPeps 的受体。AtPep 绑定与分享的受体 LRR-RK BAK1 导致 PEPR1,2 的稳定的协会,得到类似于病原体导致的那些的有免疫力的回答。这里,我们与 AtPep1 在建筑群报导 PEPR1 (PEPR1LRR ) 的细胞外的 LRR 领域的水晶结构。结构表明 AtPep1 采用充分扩大的符合构造并且绑在 superhelical PEPR1LRR 的内部表面。生物化学的试金证明 AtPep1 能够导致 PEPR1LRR-BAK1LRR heterodimerization。AtPep1 的保存 C 终端部分统治对 PEPR1LRR 有约束力的 AtPep1,与形成和 PEPR1LRR 的广泛的相互作用的 AtPep1 Asn23 的最后氨基酸。AtPep1 的最后残余的删除显著地与 PEPR1LRR 损害了 AtPep1 相互作用。一起,我们的数据由 PEPR1 揭示 AtPep1 识别的保存结构的机制,由他们的血缘的 LRR-RKs 提供重要卓见进另外的肽的识别的预言。 | Jiao Tang Zhifu Han Yadong Sun Heqiao Zhang Xinqi Gong Jijie Chai | 2015 | Cell Research2015，25，1： | 19 |
| 4 | RGF1 INSENSITIVE 1 to 5, a group of LRR receptor-like kinases, are essential for the perception of root meristem growth factor I in Arabidopsis thaliana显示文摘RGF1,分泌的肽荷尔蒙,戏在 Arabidopsis 在根分裂组织开发给角色调音。以前的研究显示功能的 RGF1 需要是在由 tyrosylprotein sulfotransferase 的酷氨酸残余的 sulfated 并且 RGF1 主要经由二个下游的抄写因素调整根分裂组织活动,过多 1 (PLT1 ) 并且 PLT2。然而,细胞外的 RGF1 怎么被一个植物房间察觉,是不清楚的。用基因途径,我们发现了充满白氨酸的重复的 clade 像受体的 kinases,指定了为 RGF1 感觉迟钝 1 (RGI1 ) 到 RGI5,用作 RGF1 的受体。二独立 rgi1 rgi2 rgi3 rgi4 rgi5 五倍的异种与分裂组织的一种小尺寸显示一致的短主要的根显型。四倍的异种显示出的 rgi1 rgi2 rgi3 rgi4 到 RGF1 的显著地减少的敏感,和五倍的异种对 RGF1 完全感觉迟钝。PLT1 和 PLT2 的表示在五倍的异种是几乎无法发现的。一个 RGI2 倡导者极大地在五倍的异种驾驶的 PLT2 的宫外的表示救了它的根分裂组织缺点。RGI 之一, RGI1,随后详细生物化学地被分析。在 vitro 点弄污和下拉,分析显示 RGI1 能身体上与 RGF1 交往。RGF1 的外长的申请能快速并且同时导致 RGI1 的 phosphorylation 和 ubiquitination,显示 RGI1 能察觉并且 transduce RGF1 肽信号。然而,激活的 RGI1 多半很快被翻。这些结果表明那 RGI,充当 RGF1 的受体,在在 Arabidopsis thaliana 的 RGF1-PLT-mediated 根分裂组织开发的戏必需品角色。 | Yang Ou Xiaoting Lu Quaner Zi Qingqing Xun Jingjie Zhang Yujun Wu Hongyong Shi Zhuoyun Wei Baolin Zhao Xiaoyue Zhang Kai He Xiaoping Gou Chuanyou Li Jia Li | 2016 | Cell Research2016，26，6： | 18 |
| 5 | Plant pattern-recognition receptors controlling innate immunity显示文摘Plants are exposed to numerous potential pathogenic microbes. To counter the threat, plants have evolved diverse patternrecognition receptors(PRRs), which are receptor kinases(RKs) and receptor proteins(RPs) specialized to detect conserved pathogen/microbe-associated molecular patterns(PAMPs/MAMPs). Although only a handful of RKs and RPs are known PRRs,they belong to the receptor-like kinase(RLK) and receptor-like protein(RLP) superfamilies that undergo lineage-specific expansion, suggesting that many of these RLKs and RLPs are potential PRRs. Analyses of existing PRRs have uncovered ligand-induced RLK-RK or RLK-RP oligomerization as a common mechanism for immune activation. PRRs can recruit additional components to form dynamic receptor complexes, which mediate specific cellular responses. Detailed analyses of these components are shedding light on molecular mechanisms underlying the regulation of PRR activity and downstream signaling. | Lei Li Yufei Yu Zhaoyang Zhou Jian-Min Zhou | 2016 | Science China(Life Sciences)2016，59，9： | 16 |
| 6 | TCP1 Modulates DWF4 Expression via Directly Interacting with the GGNCCC Motifs in the Promoter Region of DWF4 in Arabidopsis thaliana显示文摘Our previous studies indicated that TCP1 is a positive regulator of the brassinosteroid(BR) biosynthesis pathway by mediating the transcription of DWF4,one of the key BR biosynthetic genes in Arabidopsis thaliana.Whether TCP1 can directly bind to the promoter region of DWF4,however,has not been experimentally demonstrated.Here we provide our biochemical and genetic evidence that TCP1 mediates the expression of DWF4 by directly associating with the two GGNCCC motifs in the promoter region of DWF4.The expression levels of DWF4 are positively correlated to TCP1 abundance in planta.Electrophoretic mobility shift assays(EMSAs) using various synthetic DNA fragments suggest that the GGNCCC core sequence is critical for TCP1 binding.DNA sequences flanking the GGNCCC motifs are less important for the association of TCP1.Using DWF4p-GUS transgenic plants as an assay system,it is clearly indicated that these motifs are required for the positive regulation of DWF4 transcription by TCP1.More significantly,whole genome microarray analyses indicate that TCP1 can directly or indirectly regulate the expression of many other genes known to be important for normal plant growth and development. | Yahu Gao Dongzhi Zhang Jia Li | 2015 | Journal of Genetics and Genomics2015，42，7： | 14 |
| 7 | Genome-Wide Expression Pattern Analyses of the Arabidopsis Leucine-Rich Repeat Receptor-Like Kinases显示文摘像受体的蛋白质 kinases (RLK ) 是在房间房间和房间环境通讯起关键作用的 transmembrane 蛋白质的一个大组。基于细胞外的领域结构, RLK 被分类进超过 21 个亚科,充满白氨酸的重复 RLK (LRR-RLKs ) 在象 Arabidopsis 和米饭那样的植物在之中属于最大的亚科。在 Arabidopsis,有近似 223LRR-RLKs,但是哪个中的仅仅大约 60 个机能上地迄今为止被描述了。为了系统地在调整调查 LRR-RLKs 的 theroles,种生长,开发,和压力改编,我们产生了 promoter::GUS 为在 Arabidopsis 的所有 223 LRR-RLK 基因的转基因的植物并且在各种各样的发展舞台分析了他们的详细表达式模式。Theresults 提供 forfunctionally 阐明的珍贵资源这个大、必要的发信号的蛋白质亚科。 | Yunzhe Wu Qingqing Xun Yi Guo Jinghua Zhang Kaili Cheng Tao Shi Kai He Suiwen Hou Xiaoping Gou Jia Li | 2016 | Molecular Plant2016，9，2： | 13 |
| 8 | SERK Receptor-like Kinases Control Division Patterns of Vascular Precursors and Ground Tissue Stem Cells during Embryo Development in Arabidopsis显示文摘During embryo development, the vascular precursors and ground tissue stem cells divide to renew them-selves and produce the vascular tissue, endodermal cells, and cortical cells. However, the molecular mech-anisms regulating division of these stem cells have remained largely elusive. In this study, we show that loss of function of SOMATIC EMBRYOGENESIS RECEPTOR-UKE KINASE (SERK) genes results in aberrant em-bryo development. Fewer cortical, endodermal, and vascular cells are generated in the embryos of serk1 serk2bak1 triple mutants. WUSCHEL-RELATED HOMBOBOX5 (WOXS) is ectopically expressed in vascular cells of serkl serk2 bak1 embryos. The first transverse division of vascular precursors in mid-globular em-bryos and second asymmetric division of ground tissue stem cells in early-heart embryos are abnormally altered to a longitudinal division. The embryo defects can be partially rescued by constitutively activated mitogen-activated protein kinase (MAPK) kinase kinase YODA (YDA) and MAPK kinase MKK5. Taken together, our results reveal that SERK-mediated signals regulate division patterns of vascular precursors and ground tissue stem cells, likely via the YDA-MKK4/5 cascade, during embryo development. | Huiqiang Li Zeping Cai Xiaojuan Wang Meizhen Li Yanwei Cui Nan Cui Fei Yang Mingsong Zhu Junxiang Zhao Wenbin Du Kai He Jing Yi Frans E.Tax Suiwen Hou Jia Li Xiaoping Gou | 2019 | Molecular Plant2019，12，7： | 7 |
| 9 | Receptor-like kinases take center stage in plant biology显示文摘Like the animals,higher plants must perceive and interpret numerous external and endogenous cues to properly program growth and development and physiological responses.Animal cells use diverse receptors to perceive external signals to regulate cellular processes.Thus,receptor-tyrosine kinases(RTKs)are responsible for perceiving growth regu- | Jian-Min Zhou Wei-Cai Yang | 2016 | Science China(Life Sciences)2016，59，9： | 7 |
| 10 | Receptor-Like Kinases:Key Regulators of Plant Development and Defense显示文摘Plants are multi-cellular organisms that live in diverse and fuctuating environments.Cell-cell and cell-environment communication are therefore critical to plant growth and development.In animals,transmembrane receptor protein tyrosine kinases play signifcant roles in cell-cell signaling.There was a great deal of surprise in the plant community,however,when the frst receptor-like protein kinase(RLK)was isolated from maize by John C.Walker and Ren Zhang(1990)over twenty years ago,because plant cells contain cell walls which were thought to | Jia Li Frans E.Tax | 2013 | Journal of Integrative Plant Biology2013，55，12： | 5 |
| 11 | The Brassinosteroid-Activated BRI1 Receptor Kinase Is Switched off by Dephosphorylation Mediated by Cytoplasm-Localized PP2A B' Subunits显示文摘Brassinosteroid (BR ) 绑定由与它的合作受体 kinase BAK1 导致 heterodimerization 激活受体 kinase BRI1;然而, reversibly 使 BRI1 失去活性的机制仍然保持不清楚。这里,我们证明细胞质局部性的蛋白质磷酸酶 2A (PP2A ) B′regulatory 子单元与 BRI1 交往调停它的 dephosphorylation 和 inactivation。Loss-of-function 和 overexpression 实验显示出那一组 PP2A B′regulatory 子单元,由 B′ 代表了,否定地调整由减少的 BRI1 phosphorylation 发信号的 BR。BR 增加这些 B′subunits,和 B′ 的表示层次与 phosphorylated BRI1 优先地交往,建议 BR 发信号的动力学被 BRI1 的调停 PP2A 的反馈 inactivation 调制。与 PP2A B′ 相比并且 B′ ,它由 dephosphorylating 支持 BR 回答下游的抄写因素 BZR1,使 BRI1 失去活性 B′subunits 显示出类似的绑定到 BRI1 和 BZR1 但是不同 subcellular 本地化。B′subunits 的原子 / 细胞质的本地化的改变揭示了那细胞质的 PP2A dephosphorylates BRI1 并且禁止 BR 反应,而原子 PP2A dephosphorylates BZR1 并且激活 BR 反应。我们的调查结果不仅识别调停的 PP2A 规章的 B 子单元 BRI1 的绑定和 dephosphorylation,而且证明 PP2A 的 subcellular 本地化在 BR 发信号上指定它的底层选择和不同效果。 | Ruiju Wang Mengmeng Liu Min Yuan Juan A. Oses-Prieto Xingbo Cai Ying Sun Alma L. Burlingame Zhi-Yong Wang Wenqiang Tang | 2016 | Molecular Plant2016，9，1： | 5 |
| 12 | 麻疯树BRI1基因的鉴定及其在不同发育时期花蕾中的表达分析显示文摘[目的]研究油菜素内酯受体BRI1的同源基因(JcBRI1)在麻疯树花发育过程中的作用。[方法]利用RT-PCR技术克隆JcBRI1基因的CDS,以pET-30a(+)质粒为框架构建原核表达载体转化至大肠杆菌进行诱导表达,随后利用LC-MS/MS对表达产物进行质谱鉴定,并以氨基酸序列为基础分析JcBRI1蛋白质结构。利用荧光定量PCR分析麻疯树JcBRI1基因在雌雄花发育的关键时期的表达水平,初步确定其在麻疯树花发育过程中的表达模式。[结果]克隆获得了JcBRI1基因的CDS,长度为3 591 bp。SDS-PAGE检测结果表明:JcBRI1基因在大肠杆菌BL21(DE3)和Rosetta(DE3)中均能表达,但在低温环境的表达量更高。原核表达产物的LC-MS/MS鉴定结果表明:JcBRI1氨基酸序列与预期的一致,JcBRI1基因的表达产物为麻疯树BRI1蛋白。对JcBRI1在麻疯树花器官不同发育时期的表达水平进行检测分析,结果表明:JcBRI1基因的表达量在雌花发育的第一个时期即大孢子母细胞时期就达到了最高值,在随后几个时期持续下调;然而,其在雄花各个时期的表达量并无明显差异,表明其很有可能参与了麻疯树雌花大孢子母细胞发育过程。[结论]麻疯树JcBRI1基因为LRR-RLKs家族成员BRI1的同源基因,很有可能参与麻疯树雌花大孢子母细胞的发育过程,至于JcBRI1在麻疯树大孢子母细胞发育过程中的具体作用机制还需进一步研究。 | 雷世康 徐刚 | 2019 | 林业科学研究2019，32，5： | 5 |
| 13 | Small G Protein as a Novel Component of the Rice Bmssinosteroid Signal Transduction显示文摘Brassinosteroids (BR ) 是为植物生长和开发是必要的类固醇荷尔蒙的一个班。在 dicot 模型植物 Arabidopsis 的 BR 信号 transduction 小径很好被建立,但是连接在米饭表明步的 BR 的部件一直不是充分探索了。例如,特别在 BR 受体水平,发信号的 BR 怎么在米饭被调整,大部分是未知的。这里,我们显示出那 OsPRA2,米饭小 G 蛋白质,在发信号的 BR 起一个压抑的作用小径。薄板倾斜, coleoptile 延伸,和根抑制试金显示有 OsPRA2 的压制的表示的米饭植物比野类型的植物对外长地应用的 brassinolide 更敏感。相反地,米饭 overexpressing OsPRA2 对外长的 brassinolide 不太敏感。进一步的学习揭开了那 OsPRA2 禁止了 dephosphorylation,并且因此使抄写因素失去活性 BRASSINAZOLE 抵抗 1 (OsBZR1 ) 。更重要地, OsPRA2 被发现到共同本地化与并且直接绑在米饭 BR 受体 BRASSINOSTEROID 感觉迟钝 1 (OsBRI1 ) 在血浆膜。另外,在里面 vitro 试金证明 OsPRA2 禁止它的 autophosphorylation。这个 OsPRA2-OsBRI1 相互作用从它的合作受体 OsBAK1 导致了 OsBRI1 的分离,并且废除了 OsBAK1 的调停 OsBRI1 的 phosphorylation。一起,这些结果在 OsBRI1 和 OsBZR1 上作为一个新奇否定管理者揭示 OsPRA2 的可能的工作机制并且关于米饭 BR 发信号的规章的机制扩大知识。 | Ge Zhang Xiaoguang Song Hongyan Guo Yao Wu Xiaoying Chen Rongxiang Fang | 2016 | Molecular Plant2016，9，9： | 5 |
| 14 | OsSERK1 regulates rice development but not immunity to Xanthomonas oryzae pv. oryzae or Magnaporthe oryzae显示文摘Somatic embryogenesis receptor kinase(SERK)proteins play pivotal roles in regulation of plant development and immunity. The rice genome contains two SERK genes,OsSerk1 and OsSerk2. We previously demonstrated that OsSerk2 is required for rice Xa21-mediated resistance to Xanthomonas oryzae pv. oryzae(Xoo) and for normal development. Here we report the molecular characterization of OsSerk1. Overexpression of OsSerk1 results in a semi-dwarf phenotype whereas silencing of OsSerk1 results in a reduced angle of the lamina joint. OsSerk1 is not required for rice resistance to Xoo or Magnaporthe oryzae. Overexpression of Os Serk1 in OsSerk2-silenced lines complements phenotypes associated with brassinosteroid(BR) signaling defects, but not the disease resistance phenotype mediated by Xa21. In yeast, OsSERK1 interacts with itself forming homodimers, and also interacts with the kinase domains of OsSERK2 and BRI1, respectively.OsSERK1 is a functional protein kinase capable of auto-phosphorylation in vitro. We conclude that, whereas OsSERK2 regulates both rice development and immunity, OsSERK1 functions in rice development but not immunity to Xoo and M. oryzae. | Shimin Zuo Xiaogang Zhou Mawsheng Chen Shilu Zhang Benjamin Schwessinger Deling Ruan Can Yuan Jing Wang Xuewei Chen Pamela C.Ronald | 2014 | Journal of Integrative Plant Biology2014，56，12： | 4 |
| 15 | FERONIA cytoplasmic domain:node of varied signal outputs显示文摘The receptor-like kinase(RLK)FERONIA(FER),located on the plasma membrane,belongs to the Catharanthus roseus RLK1-like kinase family(CrRLK1L)and participates in widespread biological processes in plants in a context-dependent fashion.Genetic studies in Arabidopsis illustrated the versatile roles that FER plays in fertilization,vegetative growth,defense and stress responses,cell-wall homeostasis,as well as protein synthesis.These studies also helped to identify genes and signal pathways involved in FER signal transduction.Despite increasingly larger numbers of studies discussing how FER senses its ligand,Rapid alkalinization factor(RALF)peptides,and further regulates downstream factors,few have shown the mechanisms of how FER mediates the specific regulation of downstream signals in context of the phosphorylation of its cytoplasmic domain.As understanding this would help in better understanding the diversity and complexity of FER function,this paper aims to review the roles of FER in regulating different signal outputs from the view of the role of its cytoplasmic domain. | Jia Chen Sirui Zhu Zhenhua Ming Xuanming Liu Feng Yu | 2020 | aBIOTECH2020，1，2： | 4 |
| 16 | SERKs,拟南芥中一组参与多条细胞信号传导途径的共受体显示文摘植物体细胞胚胎发生类受体激酶(SERKs)属于富含亮氨酸重复序列类受体激酶(LRR-RLK)第二亚家族,在拟南芥(Arabidopsis thaliana)中共有5个成员,是一组国际植物学界的热点研究蛋白,广受关注.近年来的研究表明,SERKs作为共受体参与包括油菜素内酯信号传导、花药绒毡层细胞分化、气孔和维管束发育及花器官脱落在内的诸多生长发育过程;还参与细胞死亡调控、植物对病原菌的先天免疫反应等过程. | 卫卓赟 黎家 | 2017 | 中国科学:生命科学2017，47，8： | 3 |
| 17 | Phenotypic analysis and molecular characterization of an allelic mutant of the D61 gene in rice显示文摘Brassinosteroids(BRs) are a class of plant-specific steroidal hormones that play important roles in multiple biological processes. In this paper, a classic rice mutant gsor300084,showing erect leaves and semi-dwarf stature, was characterized. Morphological analysis in darkness showed that the mesocotyl of the gsor300084 mutant did not elongate when grown in darkness. Coleoptile elongation and root growth were less affected by the exogenous application of brassinolide(BL), the most active form of BR, in gsor300084 than in the wild-type rice variety Matsumae. Lamina joint bending analysis also showed that gsor300084 was less sensitive to exogenous BL than Matsumae. These results suggested that the gsor300084 mutant is defective in BR sensitivity. Map-based cloning indicated that gsor300084 is a novel allelic mutant of the DWARF61(D61) gene, which encodes the putative BR receptor OsBRI1. A single-base mutation appears in the LRR domain of OsBRI1, changing the 444 th amino acid from tryptophan(W) to arginine(R). Subcellular localization analysis suggested that both the wild-type and mutant OsBRI1 protein are localized at the cytoplasmic membrane. Structure modeling revealed that the W444 R substitution may affect the perception of BRs by the LRR domain. | Yanan Gao Guangquan Wang Shoujiang Yuan Yanling Qin Jinfeng Zhao Yanpei Zhang Wenhui Zhang Xueyong Li | 2014 | The Crop Journal2014，2，4： | 2 |
| 18 | Specifying the role of BAK1-interacting receptor-like kinase 3 in brassinosteroid signaling显示文摘Brassinosteroids(BR) are involved in the control of several developmental processes ranging from root elongation to senescence and adaptation to environmental cues. Thus, BR perception and signaling have to be precisely regulated. One regulator is BRI1-associated kinase 1(BAK1)-interacting receptor-like kinase 3(BIR3). In the absence of BR, BIR3 forms complexes with BR insensitive 1(BRI1) and BAK1.However, the biophysical and energetic requirements for complex formation in the absence of the ligand have yet to be determined. Using computational modeling, we simulated the potential complexes between the cytoplasmic domains of BAK1, BRI1 and BIR3. Our calculations and experimental data confirm the interaction of BIR3 Rewith BAK1 and BRI1, with the BAK1 BIR3 interaction clearly favored. Furthermore, we demonstrate that BIR3 and BRI1 share the same interaction site with BAK1. This suggests a competition between BIR3 and BRI1 for binding to BAK1, which results in preferential binding of BIR3 to BAK1 in the absence of the ligand thereby preventing the active participation of BAK1 in BR signaling. Our model also suggests that BAK1 and BRI1 can interact even while BAK1 is in complex with BIR3 at an additional binding site of BAK1 that does not allow active BR signaling. | Ruth Groβeholz Anna Feldman-Salit Friederike Wanke Sarina Schulze Nina Glockner Birgit Kemmerling Klaus Harter Ursula Kummer | 2020 | Journal of Integrative Plant Biology2020，62，4： | 1 |
| 19 | CLE42 binding induces PXL2 interaction with SERK2显示文摘 | Mou, Shulin Zhang, Xiaoxiao Han, Zhifu Wang, Jiawei Gong, Xinqi Chai, Jijie | 2017 | Protein & Cell2017，8，8： | 1 |
| 20 | Brassinosteroids regulate outer ovule integument growth in part via the control of INNER NO OUTER by BRASSINOZOLE‐RESISTANT family transcription factors显示文摘Brassinosteroids(BRs)play important roles in regulating plant reproductive processes.BR signaling or BR biosynthesis null mutants do not produce seeds under natural conditions,but the molecular mechanism underlying this infertility is poorly understood.In this study,we report that outer integument growth and embryo sac development were impaired in the ovules of the Arabidopsis thaliana BR receptor null mutant bri1-116.Gene expression and RNA-seq analyses showed that the expression of INNER NO OUTER(INO),an essential regulator of outer integument growth,was significantly reduced in the bri1-116 mutant.Increased INO expression due to overexpression or increased transcriptional activity of BRASSINAZOLE-RESISTANT 1(BZR1)in the mutant alleviated the outer integument growth defect in bri1-116 ovules,suggesting that BRs regulate outer integument growth partially via BZR1-mediated transcriptional regulation of INO.Meanwhile,INO expression in bzr-h,a null mutant for all BZR1 family genes,was barely detectable;and the outer integument of bzr-h ovules had much more severe growth defects than those of the bri1-116 mutant.Together,our findings establish a new role for BRs in regulating ovule development and suggest that BZR1 family transcription factors might regulate outer integument growth through both BRI1-dependent and BRI1-independent pathways. | Dandan Jia Lian-Ge Chen Guimin Yin Xiaorui Yang Zhihua Gao Yi Guo Yu Sun Wenqiang Tang | 2020 | Journal of Integrative Plant Biology2020，62，8： | 1 |
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