Exposure to heavy metal stress triggers changes in plasmodesmatal permeability via deposition and breakdown of callose.
Exposure to heavy metal stress triggers changes in plasmodesmatal permeability via deposition and breakdown of callose.
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DOI：
10.1093/jxb/ery171
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发表时间：
2018-06-27
影响因子：
6.9
通讯作者：
Gallagher KL
中科院分区：
文献类型：
--
作者：
O'Lexy R;Kasai K;Clark N;Fujiwara T;Sozzani R;Gallagher KL
作为固着生物，植物不断改变其生长以适应环境的变化。在这里，我们表明胞间连丝渗透性的显着变化是根系对营养胁迫反应的基础。植物和动物都必须应对环境的变化。对这些变化做出适当反应的能力往往是个人生存能力的基础。在植物中，对环境胁迫的早期反应是胞间连丝渗透性的改变以及细胞间信号传导的改变。然而，胞间连丝的修饰方式、参与这种调节的分子参与者以及这些反应的生物学意义尚不清楚。在这里，我们研究了营养缺乏和过量对拟南芥根中胞间连丝介导的运输的影响，并确定了两种胼胝质合酶和两种β-1,3-葡聚糖酶作为这些过程的关键调节因子。我们的结果表明，胞间连丝介导的信号传导的修饰是植物在营养过剩的条件下生长时维持根系生长和正确分配养分的能力的基础。
As sessile organisms, plants continually modify their growth to adapt to changes in their environment. Here we show that significant changes in plasmodesmatal permeability underlie root responses to nutrient stress. Both plants and animals must contend with changes in their environment. The ability to respond appropriately to these changes often underlies the ability of the individual to survive. In plants, an early response to environmental stress is an alteration in plasmodesmatal permeability with accompanying changes in cell to cell signaling. However, the ways in which plasmodesmata are modified, the molecular players involved in this regulation, and the biological significance of these responses are not well understood. Here, we examine the effects of nutrient scarcity and excess on plasmodesmata-mediated transport in the Arabidopsis thaliana root and identify two CALLOSE SYNTHASES and two β-1,3-GLUCANASES as key regulators of these processes. Our results suggest that modification of plasmodesmata-mediated signaling underlies the ability of the plant to maintain root growth and properly partition nutrients when grown under conditions of excess nutrients.
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DOI：
10.1073/pnas.0808717106
发表时间：
2009-03-03
影响因子：
11.1
作者：
Benitez-Alfonso, Yoselin;Cilia, Michelle;Jackson, David
通讯作者：
Jackson, David
DOI：
10.1080/00103629109368468
发表时间：
1991-01-01
影响因子：
1.8
作者：
ANDERSON, MA;MCKENNA, JR;LINDEMANN, MD
通讯作者：
LINDEMANN, MD
DOI：
10.1073/pnas.251675698
发表时间：
2002-02-05
影响因子：
11.1
作者：
Gisel, A;Hempel, FD;Zambryski, P
通讯作者：
Zambryski, P
影响因子：
7.7
作者：
Clark, Natalie M.;Hinde, Elizabeth;Sozzani, Rosangela
通讯作者：
Sozzani, Rosangela
影响因子：
4.3
作者：
Huang, Lijun;Chen, Xiong-Yan;Kim, Jae-Yean
通讯作者：
Kim, Jae-Yean