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细胞多样性是组织和器官形成的前提。在发育过程中，细胞通过不对称分裂产生形态、大小和命运不同的子细胞。这一过程与分裂位置的确定密切相关。动物不对称分裂位置的决定由保守的“极性蛋白-细胞骨架-纺缍体定位”机制介导。该通路的多种组分在植物细胞中普遍缺失。此外，植物细胞具有细胞壁，其分裂过程由植物特有的早前期带(preprophase band)和成膜体(phragmoplast)完成。因此，长期以来，植...
我国不同区域分布有大量的盐碱地，在全球气候变化背景下，土壤盐碱化呈现扩增趋势，严重影响了作物与植被生长，进一步加剧了我国人多地少的矛盾，对我国粮食及生态安全构成极大威胁。习近平总书记2021年10月21日在山东考察时谈发展抗盐碱作物战略意义时指出：土地资源是很宝贵的，抗盐碱作物发展起来对提高土地增量是很有意义的，对中国粮仓、中国饭碗也能起到积极的保障作用。对植物受到盐胁迫的应答和耐受分子机制开展深...
Plant Cell | 刘唤唤课题组解析植物水淹耐受新机制（图）
氧气 四川大学 生命科学学院 医学奖
2024/3/5
氧气是绝大多数高等生物所必须的物质，然而生命为适应低氧环境 （如高原环境和短时间窒息） 而进化出一系列保守的低氧信号应答机制，通过感知氧含量而启动基因应答。低氧感知机制的解析，对多种生理现象的理解和认知以及相关疾病的治疗提供了全新的策略，具有重要的理论价值和巨大的应用潜力。因此，动物中对氧气感知和调控机制的解析在2019年被授予诺贝尔生理或医学奖。与动物中的研究相比较，植物中低氧相关的研究还相对较...
Cis-regulatory code for predicting plant cell-type transcriptional response to high salinity
high salinity stress plant cell-type cis-regulatory pCRE
2024/2/28
Multicellular organisms have diverse cell-types with distinct roles in development and responses to the environment. At the transcriptional level, the differences in the environmental response between...
Plant Cell Wall Degrading Enzymes, Pectinase and Cellulase, in the Digestive System of the Red Palm Weevil, Rhynchophorus ferrugineus (Coleoptera: Curculionidae)
Rhynchophorus ferrugineus digestive carbohydrase midgut pectin
2015/3/11
In digestion, the red palm weevil, Rhynchophorus ferrugineus, has been adapted to overcome the plant cell wall barrier,
specially lignocellulosic and pectic compounds, by producing cellulase and pec...
Hormone Signaling Pathways in Plants：The Role of Jasmonic Acid in Plant Cell Signaling
Plant hormones jasmonate signaling elicitors hormone receptors hormone mutants
2009/1/13
Plant growth and metabolism are affected by various biotic and abiotic stimuli including microorganisms and insects attack as well as light and environmental stresses. Such a diverse plant response re...
Studies on the Fine Structure and Functional Role of Plant Cell-wall Polysaccharides
xyloglucan feruloylated glucuronoarabinoxylan ferulic acid xyloglucanase
2008/4/19
This paper describes our studies on the fine structures and functions of the important hemicellulose, xyloglucan and glucuronoarabinoxylan, of the primary cell-walls of all higher plants. Xyloglucan: ...