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Programmed cell death controlled by ANACO33/SOMBRERO determines root cap organ size in Arabidopsis

(2014) CURRENT BIOLOGY. 24(9). p.931-940
Author
Organization
Abstract
Background: The root cap is a plant organ that ensheathes the meristematic stem cells at the root tip. Unlike other plant organs, the root cap shows a rapid cellular turnover, balancing constant cell generation by specific stem cells with the disposal of differentiated cells at the root cap edge. This cellular turnover is critical for the maintenance of root cap size and its position around the growing root tip, but how this is achieved and controlled in the model plant Arabidopsis thaliana remains subject to contradictory hypotheses. Results: Here, we show that a highly organized cell death program is the final step of lateral root cap differentiation and that preparation for cell death is transcriptionally controlled by ANACO33/SOMBRERO. Precise timing of cell death is critical for the elimination of root cap cells before they fully enter the root elongation zone, which in turn is important in order to allow optimal root growth. Root cap cell death is followed by a rapid cell-autonomous corpse clearance and DNA fragmentation dependent on the S1-P1 type nuclease BFN1. Conclusions: Based on these results, we propose a novel concept in plant development that recognizes programmed cell death as a mechanism for maintaining organ size and tissue homeostasis in the Arabidopsis root cap.
Keywords
PH, ORGANIZATION, BFN1 NUCLEASE, MODEL SYSTEM, POLLEN DEVELOPMENT, THALIANA, PLANTS, EXPRESSION, LEAF, XYLEM

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MLA
Fendrych, Matyas, et al. “Programmed Cell Death Controlled by ANACO33/SOMBRERO Determines Root Cap Organ Size in Arabidopsis.” CURRENT BIOLOGY, vol. 24, no. 9, 2014, pp. 931–40, doi:10.1016/j.cub.2014.03.025.
APA
Fendrych, M., Van Hautegem, T., Van Durme, M., Olvera Carrillo, Y., Huysmans, M., Karimi, M., … Nowack, M. (2014). Programmed cell death controlled by ANACO33/SOMBRERO determines root cap organ size in Arabidopsis. CURRENT BIOLOGY, 24(9), 931–940. https://doi.org/10.1016/j.cub.2014.03.025
Chicago author-date
Fendrych, Matyas, Tom Van Hautegem, Matthias Van Durme, Yadira Olvera Carrillo, Marlies Huysmans, Mansour Karimi, Saskia Lippens, et al. 2014. “Programmed Cell Death Controlled by ANACO33/SOMBRERO Determines Root Cap Organ Size in Arabidopsis.” CURRENT BIOLOGY 24 (9): 931–40. https://doi.org/10.1016/j.cub.2014.03.025.
Chicago author-date (all authors)
Fendrych, Matyas, Tom Van Hautegem, Matthias Van Durme, Yadira Olvera Carrillo, Marlies Huysmans, Mansour Karimi, Saskia Lippens, Chris Guerin, Melanie Krebs, Karin Schumacher, and Moritz Nowack. 2014. “Programmed Cell Death Controlled by ANACO33/SOMBRERO Determines Root Cap Organ Size in Arabidopsis.” CURRENT BIOLOGY 24 (9): 931–940. doi:10.1016/j.cub.2014.03.025.
Vancouver
1.
Fendrych M, Van Hautegem T, Van Durme M, Olvera Carrillo Y, Huysmans M, Karimi M, et al. Programmed cell death controlled by ANACO33/SOMBRERO determines root cap organ size in Arabidopsis. CURRENT BIOLOGY. 2014;24(9):931–40.
IEEE
[1]
M. Fendrych et al., “Programmed cell death controlled by ANACO33/SOMBRERO determines root cap organ size in Arabidopsis,” CURRENT BIOLOGY, vol. 24, no. 9, pp. 931–940, 2014.
@article{5821799,
  abstract     = {{Background: The root cap is a plant organ that ensheathes the meristematic stem cells at the root tip. Unlike other plant organs, the root cap shows a rapid cellular turnover, balancing constant cell generation by specific stem cells with the disposal of differentiated cells at the root cap edge. This cellular turnover is critical for the maintenance of root cap size and its position around the growing root tip, but how this is achieved and controlled in the model plant Arabidopsis thaliana remains subject to contradictory hypotheses. 
Results: Here, we show that a highly organized cell death program is the final step of lateral root cap differentiation and that preparation for cell death is transcriptionally controlled by ANACO33/SOMBRERO. Precise timing of cell death is critical for the elimination of root cap cells before they fully enter the root elongation zone, which in turn is important in order to allow optimal root growth. Root cap cell death is followed by a rapid cell-autonomous corpse clearance and DNA fragmentation dependent on the S1-P1 type nuclease BFN1. 
Conclusions: Based on these results, we propose a novel concept in plant development that recognizes programmed cell death as a mechanism for maintaining organ size and tissue homeostasis in the Arabidopsis root cap.}},
  author       = {{Fendrych, Matyas and Van Hautegem, Tom and Van Durme, Matthias and Olvera Carrillo, Yadira and Huysmans, Marlies and Karimi, Mansour and Lippens, Saskia and Guerin, Chris and Krebs, Melanie and Schumacher, Karin and Nowack, Moritz}},
  issn         = {{0960-9822}},
  journal      = {{CURRENT BIOLOGY}},
  keywords     = {{PH,ORGANIZATION,BFN1 NUCLEASE,MODEL SYSTEM,POLLEN DEVELOPMENT,THALIANA,PLANTS,EXPRESSION,LEAF,XYLEM}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{931--940}},
  title        = {{Programmed cell death controlled by ANACO33/SOMBRERO determines root cap organ size in Arabidopsis}},
  url          = {{http://doi.org/10.1016/j.cub.2014.03.025}},
  volume       = {{24}},
  year         = {{2014}},
}

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