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The root cap cuticle: a cell wall structure for seedling establishment and lateral root formation

(2019) CELL. 176(6). p.1367-1378
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Organization
Abstract
The root cap surrounding the tip of plant roots is thought to protect the delicate stem cells in the root meristem. We discovered that the first layer of root cap cells is covered by an electron-opaque cell wall modification resembling a plant cuticle. Cuticles are polyester-based protective structures considered exclusive to aerial plant organs. Mutations in cutin biosynthesis genes affect the composition and ultrastructure of this cuticular structure, confirming its cutin-like characteristics. Strikingly, targeted degradation of the root cap cuticle causes a hypersensitivity to abiotic stresses during seedling establishment. Furthermore, lateral root primordia also display a cuticle that, when defective, causes delayed outgrowth and organ deformations, suggesting that it facilitates lateral root emergence. Our results show that the previously unrecognized root cap cuticle protects the root meristem during the critical phase of seedling establishment and promotes the efficient formation of lateral roots.
Keywords
LEAF CUTICLE, ARABIDOPSIS-THALIANA, ORGAN INITIATION, LIPID POLYESTER, BRASSICA-NAPUS, LIVING PLANT, SUBERIN, BIOSYNTHESIS, SURFACE, DIFFERENTIATION

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Citation

Please use this url to cite or link to this publication:

MLA
Berhin, Alice, et al. “The Root Cap Cuticle: A Cell Wall Structure for Seedling Establishment and Lateral Root Formation.” CELL, vol. 176, no. 6, 2019, pp. 1367–78.
APA
Berhin, A., de Belllis, D., Franke, R. B., Andrade Buono, R., Nowack, M., & Nawrath, C. (2019). The root cap cuticle: a cell wall structure for seedling establishment and lateral root formation. CELL, 176(6), 1367–1378.
Chicago author-date
Berhin, Alice, Damien de Belllis, Rochus B Franke, Rafael Andrade Buono, Moritz Nowack, and Christiane Nawrath. 2019. “The Root Cap Cuticle: A Cell Wall Structure for Seedling Establishment and Lateral Root Formation.” CELL 176 (6): 1367–78.
Chicago author-date (all authors)
Berhin, Alice, Damien de Belllis, Rochus B Franke, Rafael Andrade Buono, Moritz Nowack, and Christiane Nawrath. 2019. “The Root Cap Cuticle: A Cell Wall Structure for Seedling Establishment and Lateral Root Formation.” CELL 176 (6): 1367–1378.
Vancouver
1.
Berhin A, de Belllis D, Franke RB, Andrade Buono R, Nowack M, Nawrath C. The root cap cuticle: a cell wall structure for seedling establishment and lateral root formation. CELL. 2019;176(6):1367–78.
IEEE
[1]
A. Berhin, D. de Belllis, R. B. Franke, R. Andrade Buono, M. Nowack, and C. Nawrath, “The root cap cuticle: a cell wall structure for seedling establishment and lateral root formation,” CELL, vol. 176, no. 6, pp. 1367–1378, 2019.
@article{8606053,
  abstract     = {The root cap surrounding the tip of plant roots is thought to protect the delicate stem cells in the root meristem. We discovered that the first layer of root cap cells is covered by an electron-opaque cell wall modification resembling a plant cuticle. Cuticles are polyester-based protective structures considered exclusive to aerial plant organs. Mutations in cutin biosynthesis genes affect the composition and ultrastructure of this cuticular structure, confirming its cutin-like characteristics. Strikingly, targeted degradation of the root cap cuticle causes a hypersensitivity to abiotic stresses during seedling establishment. Furthermore, lateral root primordia also display a cuticle that, when defective, causes delayed outgrowth and organ deformations, suggesting that it facilitates lateral root emergence. Our results show that the previously unrecognized root cap cuticle protects the root meristem during the critical phase of seedling establishment and promotes the efficient formation of lateral roots.},
  author       = {Berhin, Alice and de Belllis, Damien and Franke, Rochus B and Andrade Buono, Rafael and Nowack, Moritz and Nawrath, Christiane},
  issn         = {0092-8674},
  journal      = {CELL},
  keywords     = {LEAF CUTICLE,ARABIDOPSIS-THALIANA,ORGAN INITIATION,LIPID POLYESTER,BRASSICA-NAPUS,LIVING PLANT,SUBERIN,BIOSYNTHESIS,SURFACE,DIFFERENTIATION},
  language     = {eng},
  number       = {6},
  pages        = {1367--1378},
  title        = {The root cap cuticle: a cell wall structure for seedling establishment and lateral root formation},
  url          = {http://dx.doi.org/10.1016/j.cell.2019.01.005},
  volume       = {176},
  year         = {2019},
}

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