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学者姓名：任慧波
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Abstract ：
大多数被子植物花瓣近轴面的锥形表皮细胞可以通过影响花瓣的光吸收、光反射和疏水性使花拥有并保持对授粉昆虫的吸引力，还可以通过为授粉昆虫与花的接触提供“扶手”而提高授粉率。由于其重要的生物学功能和独特的形态，花瓣锥形表皮细胞被用作模式系统进行细胞形态建成调控机制的研究。本文中对花瓣锥形表皮细胞形态表型的分析方法进行说明，阐述MYB转录因子、TCP转录因子、锌指转录因子、生长素、周质微管的定向排列等在花瓣锥形表皮细胞形态建成中的作用和可能的调控机制，以期为园艺植物的遗传改良提供理论参考。
Keyword ：
周质微管 周质微管 生长素 生长素 花瓣 花瓣 转录因子 转录因子 锥形表皮细胞 锥形表皮细胞
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| GB/T 7714 | 赵泽阳 , 周雨晴 , 林德书 et al. 花瓣锥形表皮细胞形态建成研究进展 [J]. | 园艺学报 , 2024 , 51 (07) : 1695-1706 . |
| MLA | 赵泽阳 et al. "花瓣锥形表皮细胞形态建成研究进展" . | 园艺学报 51 . 07 (2024) : 1695-1706 . |
| APA | 赵泽阳 , 周雨晴 , 林德书 , 任慧波 . 花瓣锥形表皮细胞形态建成研究进展 . | 园艺学报 , 2024 , 51 (07) , 1695-1706 . |
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周质微管在植物细胞形态建成和形态维持中发挥了非常重要的作用。在不同植物组织的细胞中，周质微管形成特定的组织形式，从而引导细胞壁中纤维素微纤丝合成和沉积的方向。同时，细胞壁的形成又会影响植物细胞扩张生长的方向。由于细胞受到内外环境的压力处于不断的变化中，周质微管也表现出高度的动态性。研究发现，微管相关蛋白在周质微管的动态变化中起着关键性的作用。本文将对微管结合蛋白IPGA1通过对微管动态和微管组织形式的调控，进而参与拟南芥花瓣远轴表皮细胞和子叶表皮铺板细胞形态建成的研究进行总结。同时，也对机械力刺激下，IPGA1协同其互作蛋白调控周质微管重排的研究进展进行总结。另外，本文还对IPGA1的同源蛋白进行分析，为它们功能的研究提供理论参考。
Keyword ：
IPGA1 IPGA1 周质微管 周质微管 拟南芥(Arabidopsis thaliana) 拟南芥(Arabidopsis thaliana) 机械力 机械力 细胞形态 细胞形态
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| GB/T 7714 | 刘敏 , 王晓丹 , 赵泽阳 et al. 微管结合蛋白IPGA1调控植物细胞形态建成概述 [J]. | 分子植物育种 , 2023 : 0 . |
| MLA | 刘敏 et al. "微管结合蛋白IPGA1调控植物细胞形态建成概述" . | 分子植物育种 (2023) : 0 . |
| APA | 刘敏 , 王晓丹 , 赵泽阳 , 周雨晴 , 林德书 , 柏文婷 et al. 微管结合蛋白IPGA1调控植物细胞形态建成概述 . | 分子植物育种 , 2023 , 0 . |
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© 2023. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.Many studies from different model organisms have demonstrated that microtubules are essential for various cellular processes, including cell division, cell morphogenesis, and intracellular trafficking. In interphase plant cells, oriented cortical microtubule arrays are highly characteristic in cells that display various morphologies, such as elongated hypocotyl cells and root cells, jigsaw-puzzled leaf pavement cells, and petal epidermal conical cells. Conical cells represent a specialized epidermal cell type found in the petal epidermis of many flowering plants. It has been suggested that in the model plant Arabidopsis thaliana, the petal adaxial epidermal cells develop from a roughly hemispherical morphology to a conical shape, correlating with the reorientation of cortical microtubules from random to well-ordered circumferential arrays. This chapter presents an overview of the methods available to visualize the microtubule cytoskeleton in living conical cells via confocal microscopy.
Keyword ：
Cell biology Cell biology Confocal microscope Confocal microscope Conical cells Conical cells Fluorescent-tagged reporters Fluorescent-tagged reporters Live-cell imaging Live-cell imaging Microtubule Microtubule Petal Petal Plant Plant
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| GB/T 7714 | Dang, Xie , Zhu, Lilan , Ren, Huibo et al. Methods to Visualize and Quantify Cortical Microtubule Arrays in Arabidopsis Conical Cells. [J]. | Methods in Molecular Biology , 2023 , 2604 : 317-325 . |
| MLA | Dang, Xie et al. "Methods to Visualize and Quantify Cortical Microtubule Arrays in Arabidopsis Conical Cells." . | Methods in Molecular Biology 2604 (2023) : 317-325 . |
| APA | Dang, Xie , Zhu, Lilan , Ren, Huibo , Lin, Deshu . Methods to Visualize and Quantify Cortical Microtubule Arrays in Arabidopsis Conical Cells. . | Methods in Molecular Biology , 2023 , 2604 , 317-325 . |
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The organization of the microtubule cytoskeleton is critical for cell and organ morphogenesis. The evolutionarily conserved microtubule-severing enzyme KATANIN plays critical roles in microtubule organization in the plant and animal kingdoms. We previously used conical cell of Arabidopsis thaliana petals as a model system to investigate cortical microtubule organization and cell morphogenesis and determined that KATANIN promotes the formation of circumferential cortical microtubule arrays in conical cells. Here, we demonstrate that the conserved protein phosphatase PP2A interacts with and dephosphorylates KATANIN to promote the formation of circumferential cortical microtubule arrays in conical cells. KATANIN undergoes cycles of phosphorylation and dephosphorylation. Using co-immunoprecipitation coupled with mass spectrometry, we identified PP2A subunits as KATANIN-interacting proteins. Further biochemical studies showed that PP2A interacts with and dephosphorylates KATANIN to stabilize its cellular abundance. Similar to the katanin mutant, mutants for genes encoding PP2A subunits showed disordered cortical microtubule arrays and defective conical cell shape. Taken together, these findings identify PP2A as a regulator of conical cell shape and suggest that PP2A mediates KATANIN phospho-regulation during plant cell morphogenesis.
Keyword ：
conical cells conical cells cortical microtubules cortical microtubules KATANIN KATANIN morphogenesis morphogenesis phospho-regulation phospho-regulation protein phosphatase PP2A protein phosphatase PP2A
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| GB/T 7714 | Ren, Huibo , Rao, Jinqiu , Tang, Min et al. PP2A interacts with KATANIN to promote microtubule organization and conical cell morphogenesis [J]. | JOURNAL OF INTEGRATIVE PLANT BIOLOGY , 2022 , 64 (8) : 1514-1530 . |
| MLA | Ren, Huibo et al. "PP2A interacts with KATANIN to promote microtubule organization and conical cell morphogenesis" . | JOURNAL OF INTEGRATIVE PLANT BIOLOGY 64 . 8 (2022) : 1514-1530 . |
| APA | Ren, Huibo , Rao, Jinqiu , Tang, Min , Li, Yaxing , Dang, Xie , Lin, Deshu . PP2A interacts with KATANIN to promote microtubule organization and conical cell morphogenesis . | JOURNAL OF INTEGRATIVE PLANT BIOLOGY , 2022 , 64 (8) , 1514-1530 . |
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Plant cells continuously experience mechanical stress resulting from the cell wall that bears internal turgor pressure. Cortical microtubules align with the predicted maximal tensile stress direction to guide cellulose biosynthesis and therefore results in cell wall reinforcement. We have previously identified Increased Petal Growth Anisotropy (IPGA1) as a putative microtubule-associated protein in Arabidopsis, but the function of IPGA1 remains unclear. Here, using the Arabidopsis cotyledon pavement cell as a model, we demonstrated that IPGA1 forms protein granules and interacts with ANGUSTIFOLIA (AN) to cooperatively regulate microtubule organisation in response to stress. Application of mechanical perturbations, such as cell ablation, led to microtubule reorganisation into aligned arrays in wild-type cells. This microtubule response to stress was enhanced in the IPGA1 loss-of-function mutant. Mechanical perturbations promoted the formation of IPGA1 granules on microtubules. We further showed that IPGA1 physically interacted with AN both in vitro and on microtubules. The ipga1 mutant alleles exhibited reduced interdigitated growth of pavement cells, with smooth shape. IPGA1 and AN had a genetic interaction in regulating pavement cell shape. Furthermore, IPGA1 genetically and physically interacted with the microtubule-severing enzyme KATANIN. We propose that the IPGA1-AN module regulates microtubule organisation and pavement cell shape.
Keyword ：
Arabidopsis Arabidopsis cortical microtubule cortical microtubule mechanical stress mechanical stress microtubule organisation microtubule organisation pavement cells pavement cells
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| GB/T 7714 | Chen, Binqing , Dang, Xie , Bai, Wenting et al. The IPGA1-ANGUSTIFOLIA module regulates microtubule organisation and pavement cell shape in Arabidopsis [J]. | NEW PHYTOLOGIST , 2022 , 236 (4) : 1310-1325 . |
| MLA | Chen, Binqing et al. "The IPGA1-ANGUSTIFOLIA module regulates microtubule organisation and pavement cell shape in Arabidopsis" . | NEW PHYTOLOGIST 236 . 4 (2022) : 1310-1325 . |
| APA | Chen, Binqing , Dang, Xie , Bai, Wenting , Liu, Min , Li, Ying , Zhu, Lilan et al. The IPGA1-ANGUSTIFOLIA module regulates microtubule organisation and pavement cell shape in Arabidopsis . | NEW PHYTOLOGIST , 2022 , 236 (4) , 1310-1325 . |
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PhJAZ1蛋白是不同类型毛竹叶差异应对害虫取食的核心，然而其分子信号途径的下游，特别是SPL家族，及其对抗虫相关次生代谢物的影响依然未知.本研究先在拟南芥JAZ1缺失性突变体(jaz1)背景下构建了PhJAZ1蛋白的过表达植株(PhJAZ1-OX/jaz1),并检测了不同基因型植株中单宁、黄酮及生物碱等次生代谢物质的含量；然后，通过棉铃虫饲喂试验分别测定了取食不同基因型拟南芥叶片对棉铃虫2龄幼虫体重和存活率的影响；同时，通过同源表达的手段(瞬时表达体系),在毛竹幼苗中过表达了PhJAZ1蛋白，并分析了PhJAZ1对下游PhSPL家族基因表达量的影响，及其对次生代谢物含量的影响.结果表明：与携带jaz1的拟南芥植株相比，PhJAZ1-OX/jaz1植株叶片中的单宁和生物碱含量分别减少了40.5%和70.8%(P<0.01);与取食携带jaz1的拟南芥相比，取食PhJAZ1-OX/jaz1拟南芥叶片的棉铃虫2龄幼虫的体重和存活率分别提高了195.8%和36.7%(P<0.01);与野生型毛竹相比，PhJAZ1过表达毛竹中的单宁含量减少了11.7%(P<0.05);此外，毛竹中过表达PhJAZ1能显著上调24个PhSPL家族基因(PhSPL6-2、PhSPL3-3、PhSPL9-1、PhSPL9-2等)的表达.以上结果说明，毛竹中的PhJAZ1能在转录水平上影响多个PhSPL家族基因的表达，进而抑制部分抗虫相关次生代谢物质的积累，最终起到钝化毛竹抗虫性的效果.
Keyword ：
JAZ1 JAZ1 SPL SPL 抗虫性 抗虫性 毛竹 毛竹 茉莉酸 茉莉酸
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| GB/T 7714 | 黄锦鹏 , 李玉红 , 朱腾飞 et al. PhJAZ1蛋白对毛竹中抗虫相关代谢物和SPL家族基因的影响 [J]. | 福建农林大学学报(自然科学版) , 2022 , 51 (04) : 478-485 . |
| MLA | 黄锦鹏 et al. "PhJAZ1蛋白对毛竹中抗虫相关代谢物和SPL家族基因的影响" . | 福建农林大学学报(自然科学版) 51 . 04 (2022) : 478-485 . |
| APA | 黄锦鹏 , 李玉红 , 朱腾飞 , 任慧波 , 苏军 . PhJAZ1蛋白对毛竹中抗虫相关代谢物和SPL家族基因的影响 . | 福建农林大学学报(自然科学版) , 2022 , 51 (04) , 478-485 . |
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细胞极性建立和形态建成是植物组织器官发育的关键。根毛、花粉管和子叶铺板细胞已成为研究细胞极性建立以及细胞形态建成的模式系统。植物器官中，细胞形态的形成依赖分子开关传递环境或发育信号。植物中特有的一类小G蛋白(rho of plant, ROP)在许多细胞过程中起着信号转导的作用，ROP interactive CRIB-containing proteins (RIC)蛋白家族作为ROP下游的效应蛋白，是植物中特有的蛋白家族，参与ROP介导的复杂的信号网络。目前对RIC的研究主要集中在拟南芥中。本研究通过生物信息学方法对RIC蛋白进行α-螺旋、β-折叠、延伸链、无规则卷曲比例和亚细胞定位进行分析，并总结了RIC在根毛、花粉管和子叶铺板细胞形态建成以及植物适应逆境胁迫中所起的作用。本研究是对RIC蛋白家族系统的总结，将为进一步研究RIC的生物学功能网络提供理论参考。
Keyword ：
RIC RIC ROP ROP 微丝 微丝 微管 微管 拟南芥(Arabidopsis thaliana) 拟南芥(Arabidopsis thaliana)
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| GB/T 7714 | 吴雪凝 , 刘敏 , 陈勉 et al. RIC蛋白家族调控植物发育的分子机制研究进展 [J]. | 分子植物育种 , 2022 , 20 (08) : 2637-2644 . |
| MLA | 吴雪凝 et al. "RIC蛋白家族调控植物发育的分子机制研究进展" . | 分子植物育种 20 . 08 (2022) : 2637-2644 . |
| APA | 吴雪凝 , 刘敏 , 陈勉 , 张勤芳 , 林德书 , 任慧波 et al. RIC蛋白家族调控植物发育的分子机制研究进展 . | 分子植物育种 , 2022 , 20 (08) , 2637-2644 . |
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Background Emergence of new pathogen strains of Magnaporthe oryzae is a major reason for recurrent failure of the resistance mediated by a single resistance gene (Pi) in rice. Stacking various Pi genes in the genome through marker-assisted selection is thus an effective strategy in rice breeding for achieving durable resistance against the pathogen. However, the effect of pyramiding of multiple Pi genes using transgenesis still remains largely unknown. Results Three Pi genes Pib, Pi25 and Pi54 were transferred together into two rice varieties, the indica variety Kasalath and the japonica variety Zhenghan 10. Transgenic plants of both Kasalath and Zhenghan 10 expressing the Pi transgenes showed imparted pathogen resistance. All the transgenic lines of both cultivars also exhibited shorter growth periods with flowering 2-4 days early, and shorter plant heights with smaller panicle. Thus, pyramiding of the Pi genes resulted in reduced grain yields in both rice cultivars. However, tiller numbers and grain weight were generally similar between the pyramided lines and corresponding parents. A global analysis of gene expression by RNA-Seq suggested that both enhancement and, to a lesser extent, inhibition of gene transcription occurred in the pyramided plants. A total of 264 and 544 differentially expressed genes (DEGs) were identified in Kasalath and Zhenghan 10, respectively. Analysis of the DEGs suggested that presence of the Pi transgenes did not alter gene expression only related to disease resistance, but also impacted many gene transcriptions in the pathways for plant growth and development, in which several were common for both Kasalath and Zhenghan 10. Conclusion Pyramiding of the Pi genes Pib, Pi25 and Pi54 via transgenesis is a potentially promising approach for improving rice resistance to the pathogen Magnaporthe oryzae. However, pleiotropic effects of the Pi genes could potentially result in yield loss. These findings support the idea that immunity is often associated with yield penalties. Rational combination of the Pi genes based on the genetic background may be important to balance yield and disease resistance.
Keyword ：
Blast disease Blast disease Gene pyramiding Gene pyramiding O O Pi25 Pi25 Pi54 Pi54 Pib Pib RNA-Seq RNA-Seq sativa sativa Transcriptome Transcriptome Transgenesis Transgenesis
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| GB/T 7714 | Peng, Meifang , Lin, Xiaomin , Xiang, Xiaoli et al. Characterization and Evaluation of Transgenic Rice Pyramided with the Pi Genes Pib, Pi25 and Pi54 [J]. | RICE , 2021 , 14 (1) . |
| MLA | Peng, Meifang et al. "Characterization and Evaluation of Transgenic Rice Pyramided with the Pi Genes Pib, Pi25 and Pi54" . | RICE 14 . 1 (2021) . |
| APA | Peng, Meifang , Lin, Xiaomin , Xiang, Xiaoli , Ren, Huibo , Fan, Xiaoli , Chen, Kegui . Characterization and Evaluation of Transgenic Rice Pyramided with the Pi Genes Pib, Pi25 and Pi54 . | RICE , 2021 , 14 (1) . |
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Cryptochromes (CRYs) are photoreceptors or components of the molecular clock in various evolutionary lineages, and they are commonly regulated by polyubiquitination and proteolysis. Multiple E3 ubiquitin ligases regulate CRYs in animal models, and previous genetics study also suggest existence of multiple E3 ubiquitin ligases for plant CRYs. However, only one E3 ligase, Cul4(COP1/SPAs), has been reported for plant CRYs so far. Here we show that Cul3(LRBs) is the second E3 ligase of CRY2 in Arabidopsis. We demonstrate the blue light-specific and CRY-dependent activity of LRBs (Light-Response Bric-a-Brack/Tramtrack/Broad 1, 2 & 3) in blue-light regulation of hypocotyl elongation. LRBs physically interact with photoexcited and phosphorylated CRY2, at the CCE domain of CRY2, to facilitate polyubiquitination and degradation of CRY2 in response to blue light. We propose that Cul4(COP1/SPAs) and Cul3(LRBs) E3 ligases interact with CRY2 via different structure elements to regulate the abundance of CRY2 photoreceptor under different light conditions, facilitating optimal photoresponses of plants grown in nature. The fate of proteins in cells is determined by not only synthesis but also degradation. Here Chen et al. show that degradation of the plant blue light receptor CRY2 is determined by two distinct E3 ubiquitin ligases, Cul4(COP1/SPAs) and Cul3(LRBs), regulating the function of CRY2 under different light conditions.
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| GB/T 7714 | Chen, Yadi , Hu, Xiaohua , Liu, Siyuan et al. Regulation of Arabidopsis photoreceptor CRY2 by two distinct E3 ubiquitin ligases [J]. | NATURE COMMUNICATIONS , 2021 , 12 (1) . |
| MLA | Chen, Yadi et al. "Regulation of Arabidopsis photoreceptor CRY2 by two distinct E3 ubiquitin ligases" . | NATURE COMMUNICATIONS 12 . 1 (2021) . |
| APA | Chen, Yadi , Hu, Xiaohua , Liu, Siyuan , Su, Tiantian , Huang, Hsiaochi , Ren, Huibo et al. Regulation of Arabidopsis photoreceptor CRY2 by two distinct E3 ubiquitin ligases . | NATURE COMMUNICATIONS , 2021 , 12 (1) . |
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Plant and non-plant species possess cryptochrome (CRY) photoreceptors to mediate blue light regulation of development or the circadian clock. The blue light-dependent homooligomerization of Arabidopsis CRY2 is a known early photoreaction necessary for its functions, but the photobiochemistry and function of lightdependent homooligomerization and heterooligomerization of cryptochromes, collectively referred to as CRY photooligomerization, have not been well established. Here, we show that photooligomerization is an evolutionarily conserved photoreaction characteristic of CRY photoreceptors in plants and some non-plant species. Our analyses of the kinetics of the forward and reverse reactions of photooligomerization of Arabidopsis CRY1 and CRY2 provide a previously unrecognized mechanism underlying the different photosensitivity and photoreactivity of these two closely related photoreceptors. We found that photooligomerization is necessary but not sufficient for the functions of CRY2, implying that CRY photooligomerization is presumably accompanied by additional function-empowering conformational changes. We further demonstrated that the CRY2-CRY1 heterooligomerization plays roles in regulating functions of Arabidopsis CRYs in vivo. Taken together, these results suggest that photooligomerization is an evolutionarily conserved mechanism determining the photosensitivity and photoreactivity of plant CRYs.
Keyword ：
cryptochrome cryptochrome light signaling light signaling oligomerization oligomerization photomorphogenesis photomorphogenesis
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| GB/T 7714 | Liu, Qing , Su, Tiantian , He, Wenjin et al. Photooligomerization Determines Photosensitivity and Photoreactivity of Plant Cryptochromes [J]. | MOLECULAR PLANT , 2020 , 13 (3) : 398-413 . |
| MLA | Liu, Qing et al. "Photooligomerization Determines Photosensitivity and Photoreactivity of Plant Cryptochromes" . | MOLECULAR PLANT 13 . 3 (2020) : 398-413 . |
| APA | Liu, Qing , Su, Tiantian , He, Wenjin , Ren, Huibo , Liu, Siyuan , Chen, Yadi et al. Photooligomerization Determines Photosensitivity and Photoreactivity of Plant Cryptochromes . | MOLECULAR PLANT , 2020 , 13 (3) , 398-413 . |
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