Rice plants response to the disruption of OsCSLD4 gene
Rice plants response to the disruption of OsCSLD4 gene
复制标题
水稻植物对 OsCSLD4 基因破坏的反应
DOI：
10.4161/psb.5.2.10369
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发表时间：
2010-02
影响因子：
2.9
通讯作者：
Zhou Y.
中科院分区：
文献类型：
--
作者：
Li R.;Zhang B.;Xiong G.;Zhou Y.
植物细胞壁是一个复杂的多糖网络，具有重要的发育和生理功能，远远超出了提供物理约束的范围。植物细胞能够对细胞壁缺陷做出反应，表现为基因表达的变化、异位木质素的积累、胁迫反应和生长停滞。了解植物如何感知和响应壁面完整性是一个重大挑战，因为人们对参与反应的信号知之甚少。纤维素合成酶类D(CSLD)蛋白参与壁多糖聚合物的生物合成，是所有植物共有的亚家族。最近，我们报道了CSLD4在水稻中的功能特性。OsCSLD4的突变表现为形态变化和对壁成分和结构的多效性影响。我们的研究表明，OsCSLD4在细胞壁形成和植物生长中起着关键作用。在这里，我们通过将秸秆残留物分成五个组分来显示细微的壁变化。定量RT-PCR分析进一步表明，在突变植株中，参与木聚糖合成和细胞周期调控的各种基因的表达发生了变化，这是对OsCSLD4中断的响应。因此，植物可能有一种很好的感官机制来对壁缺陷做出反应，并调节生长以适应这种变化。
Plant cell wall is a complex polysaccharide network and performs important developmental and physiological functions far beyond supplying the physical constrains. Plant cells have the ability to react to cell wall defects as exhibited by changes in gene expression, accumulation of ectopic lignin, stress responses, and growth arrest. It is a major challenge to understand how plants sense and response to wall integrity since very little is known about the signaling involved in the responses. Cellulose synthase-like D (CSLD) proteins mediating the biosynthesis of a wall polysaccharide polymer make up a common subfamily to all plants. Recently, we have reported the functional characterization of CSLD4 in rice. Mutation in OsCSLD4 shows morphological alterations and pleiotropic effects on wall compositions and structure. Our study demonstrates that OsCSLD4 plays critical roles in cell wall formation and plant growth. Here we show the subtle wall alterations through separating the culm residues into five fractions. Quantitative RT-PCR analysis further revealed that the expression of various genes involved in xylan synthesis and cell-cycle regulation was altered in mutant plants, as the responses to OsCSLD4 disruption. Therefore, plants may have a fine sensory machinery to react to wall defects and modulate growth for adapting to the changes.
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DOI：
10.1016/j.bbapap.2005.07.032
发表时间：
2005-12-30
影响因子：
3.2
作者：
Heinisch, JJ
通讯作者：
Heinisch, JJ
影响因子：
4.3
作者：
AuxtovaSamajova, O;Liskova, D;Bilisics, L
通讯作者：
Bilisics, L
影响因子：
11.6
作者：
Persson, Staffan;Caffall, Kerry Hosmer;Somerville, Chris
通讯作者：
Somerville, Chris
影响因子：
7.4
作者：
Xuan Wang;G. Cnops;R. Vanderhaeghen;Sabine De Block;M. V. Montagu;M. Lijsebettens
通讯作者：
Xuan Wang;G. Cnops;R. Vanderhaeghen;Sabine De Block;M. V. Montagu;M. Lijsebettens
影响因子：
7.2
作者：
Bernal, Adriana Jimena;Jensen, Jakob Kruger;Willats, William G. T.
通讯作者：
Willats, William G. T.