Developmental Modulation of Root Cell Wall Architecture Confers Resistance to an Oomycete Pathogen.
Developmental Modulation of Root Cell Wall Architecture Confers Resistance to an Oomycete Pathogen.
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DOI：
10.1016/j.cub.2020.08.011
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发表时间：
2020-11-02
期刊：
影响因子：
--
通讯作者：
Schornack S
中科院分区：
文献类型：
--
作者：
Gavrin A;Rey T;Torode TA;Toulotte J;Chatterjee A;Kaplan JL;Evangelisti E;Takagi H;Charoensawan V;Rengel D;Journet EP;Debellé F;de Carvalho-Niebel F;Terauchi R;Braybrook S;Schornack S
细胞壁是植物细胞与其周围环境之间的主要界面，必须平衡多种功能，包括生长调节，有益微生物的进入和对病原体的保护。在这里，我们展示了API，SCAR/WAVE复合物的SCAR 2蛋白组分，如何控制豆科植物中致病卵菌和共生细菌相互作用的重要根细胞壁结构。API的突变导致根对病原体棕榈疫霉的抗性和共生根瘤菌的定殖缺陷。尽管API突变体植物不表现出显著的总体生长和发育缺陷，但它们的根细胞显示出延迟的肌动蛋白和内膜运输动力学，并选择性地分泌较少的细胞壁多糖木葡聚糖。与API损失相关的变化建立了具有改变的生物化学性质的细胞壁结构，其阻碍棕榈酸单胞菌感染进展。因此，由SCAR/WAVE驱动的细胞壁的发育阶段依赖性修饰在平衡细胞壁发育功能和微生物入侵方面是重要的。SCAR蛋白API控制肌动蛋白和内膜运输动力学几种植物的SCAR蛋白可以支持共生和病原体感染。API的突变影响植物细胞壁的特定生化特性。改变的壁结构导致根对Phytophthora palmivora的抗性。Gavrin等人表明苜蓿SCAR/WAVE复合蛋白API控制根中的肌动蛋白细胞骨架动力学。与API损失相关的局部变化建立了具有改变的生物化学性质的细胞壁结构，其阻碍卵菌病原体的感染进展。
The cell wall is the primary interface between plant cells and their immediate environment and must balance multiple functionalities, including the regulation of growth, the entry of beneficial microbes, and protection against pathogens. Here, we demonstrate how API, a SCAR2 protein component of the SCAR/WAVE complex, controls the root cell wall architecture important for pathogenic oomycete and symbiotic bacterial interactions in legumes. A mutation in API results in root resistance to the pathogen Phytophthora palmivora and colonization defects by symbiotic rhizobia. Although api mutant plants do not exhibit significant overall growth and development defects, their root cells display delayed actin and endomembrane trafficking dynamics and selectively secrete less of the cell wall polysaccharide xyloglucan. Changes associated with a loss of API establish a cell wall architecture with altered biochemical properties that hinder P. palmivora infection progress. Thus, developmental stage-dependent modifications of the cell wall, driven by SCAR/WAVE, are important in balancing cell wall developmental functions and microbial invasion. The SCAR protein API controls actin and endomembrane trafficking dynamics SCAR proteins of several plant species can support symbiosis and pathogen infection A mutation in API affects specific biochemical properties of plant cell walls An altered wall architecture results in root resistance to Phytophthora palmivora Subtly altered plant cell walls can be decisive for disease. Gavrin et al. show that the Medicago SCAR/WAVE complex protein API controls actin cytoskeleton dynamics in roots. Local changes associated with a loss of API establish a cell wall architecture with altered biochemical properties that hinder infection progress by an oomycete pathogen.
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DOI：
10.1111/nph.14897
发表时间：
2018-03
期刊：
The New phytologist
影响因子：
--
作者：
Galloway AF;Pedersen MJ;Merry B;Marcus SE;Blacker J;Benning LG;Field KJ;Knox JP
通讯作者：
Knox JP
影响因子：
12.3
作者：
Kurisu S;Takenawa T
通讯作者：
Takenawa T
DOI：
10.1073/pnas.0407392101
发表时间：
2004-11-16
影响因子：
11.1
作者：
Frank, M;Egile, C;Smith, LG
通讯作者：
Smith, LG
影响因子：
3.2
作者：
HICKMAN, CJ
通讯作者：
HICKMAN, CJ
影响因子：
9.4
作者：
Gavrin, Aleksandr;Chiasson, David;Fedorova, Elena E.
通讯作者：
Fedorova, Elena E.