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A phloem‐localized Arabidopsis metacaspase (AtMC3) improves drought tolerance

Eugenia Pitsili (UGent) , Ricardo Rodriguez‐Trevino, Nerea Ruiz‐Solani, Fatih Demir, Elizabeth Kastanaki, Charlene Dambire, Roger de Pedro‐Jové, Dominique Vercammen, Jose Salguero‐Linares, Hardy Hall, et al.
(2023) NEW PHYTOLOGIST. 239(4). p.1281-1299
Author
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Abstract
Increasing drought phenomena pose a serious threat to agricultural productivity. Although plants have multiple ways to respond to the complexity of drought stress, the underlying mechanisms of stress sensing and signaling remain unclear. The role of the vasculature, in particular the phloem, in facilitating inter-organ communication is critical and poorly understood. Combining genetic, proteomic and physiological approaches, we investigated the role of AtMC3, a phloem-specific member of the metacaspase family, in osmotic stress responses in Arabidopsis thaliana. Analyses of the proteome in plants with altered AtMC3 levels revealed differential abundance of proteins related to osmotic stress pointing into a role of the protein in water-stress-related responses. Overexpression of AtMC3 conferred drought tolerance by enhancing the differentiation of specific vascular tissues and maintaining higher levels of vascular-mediated transportation, while plants lacking the protein showed an impaired response to drought and inability to respond effectively to the hormone abscisic acid. Overall, our data highlight the importance of AtMC3 and vascular plasticity in fine-tuning early drought responses at the whole plant level without affecting growth or yield.
Keywords
Arabidopsis thaliana, abscisic acid, drought, hypoxia, metacaspases, osmotic stress, phloem., phloem, ABSCISIC-ACID, CELL-DEATH, ARABIDOPSIS, METACASPASES, STRESS, DROUGHT, XYLEM, PHYSIOLOGY, PROTEASES, PROTEINS

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Citation

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MLA
Pitsili, Eugenia, et al. “A Phloem‐localized Arabidopsis Metacaspase (AtMC3) Improves Drought Tolerance.” NEW PHYTOLOGIST, vol. 239, no. 4, 2023, pp. 1281–99, doi:10.1111/nph.19022.
APA
Pitsili, E., Rodriguez‐Trevino, R., Ruiz‐Solani, N., Demir, F., Kastanaki, E., Dambire, C., … Coll, N. S. (2023). A phloem‐localized Arabidopsis metacaspase (AtMC3) improves drought tolerance. NEW PHYTOLOGIST, 239(4), 1281–1299. https://doi.org/10.1111/nph.19022
Chicago author-date
Pitsili, Eugenia, Ricardo Rodriguez‐Trevino, Nerea Ruiz‐Solani, Fatih Demir, Elizabeth Kastanaki, Charlene Dambire, Roger de Pedro‐Jové, et al. 2023. “A Phloem‐localized Arabidopsis Metacaspase (AtMC3) Improves Drought Tolerance.” NEW PHYTOLOGIST 239 (4): 1281–99. https://doi.org/10.1111/nph.19022.
Chicago author-date (all authors)
Pitsili, Eugenia, Ricardo Rodriguez‐Trevino, Nerea Ruiz‐Solani, Fatih Demir, Elizabeth Kastanaki, Charlene Dambire, Roger de Pedro‐Jové, Dominique Vercammen, Jose Salguero‐Linares, Hardy Hall, Melissa Mantz, Martin Schuler, Hannele Tuominen, Frank Van Breusegem, Marc Valls, Sergi Munné‐Bosch, Michael J. Holdsworth, Pitter F. Huesgen, Antia Rodriguez‐Villalon, and Nuria S. Coll. 2023. “A Phloem‐localized Arabidopsis Metacaspase (AtMC3) Improves Drought Tolerance.” NEW PHYTOLOGIST 239 (4): 1281–1299. doi:10.1111/nph.19022.
Vancouver
1.
Pitsili E, Rodriguez‐Trevino R, Ruiz‐Solani N, Demir F, Kastanaki E, Dambire C, et al. A phloem‐localized Arabidopsis metacaspase (AtMC3) improves drought tolerance. NEW PHYTOLOGIST. 2023;239(4):1281–99.
IEEE
[1]
E. Pitsili et al., “A phloem‐localized Arabidopsis metacaspase (AtMC3) improves drought tolerance,” NEW PHYTOLOGIST, vol. 239, no. 4, pp. 1281–1299, 2023.
@article{01H5HFV8FA0PGPBESZZ73C2MVB,
  abstract     = {{Increasing drought phenomena pose a serious threat to agricultural productivity. Although plants have multiple ways to respond to the complexity of drought stress, the underlying mechanisms of stress sensing and signaling remain unclear. The role of the vasculature, in particular the phloem, in facilitating inter-organ communication is critical and poorly understood. Combining genetic, proteomic and physiological approaches, we investigated the role of AtMC3, a phloem-specific member of the metacaspase family, in osmotic stress responses in Arabidopsis thaliana. Analyses of the proteome in plants with altered AtMC3 levels revealed differential abundance of proteins related to osmotic stress pointing into a role of the protein in water-stress-related responses. Overexpression of AtMC3 conferred drought tolerance by enhancing the differentiation of specific vascular tissues and maintaining higher levels of vascular-mediated transportation, while plants lacking the protein showed an impaired response to drought and inability to respond effectively to the hormone abscisic acid. Overall, our data highlight the importance of AtMC3 and vascular plasticity in fine-tuning early drought responses at the whole plant level without affecting growth or yield.}},
  author       = {{Pitsili, Eugenia and Rodriguez‐Trevino, Ricardo and Ruiz‐Solani, Nerea and Demir, Fatih and Kastanaki, Elizabeth and Dambire, Charlene and de Pedro‐Jové, Roger and Vercammen, Dominique and Salguero‐Linares, Jose and Hall, Hardy and Mantz, Melissa and Schuler, Martin and Tuominen, Hannele and Van Breusegem, Frank and Valls, Marc and Munné‐Bosch, Sergi and Holdsworth, Michael J. and Huesgen, Pitter F. and Rodriguez‐Villalon, Antia and Coll, Nuria S.}},
  issn         = {{0028-646X}},
  journal      = {{NEW PHYTOLOGIST}},
  keywords     = {{Arabidopsis thaliana,abscisic acid,drought,hypoxia,metacaspases,osmotic stress,phloem.,phloem,ABSCISIC-ACID,CELL-DEATH,ARABIDOPSIS,METACASPASES,STRESS,DROUGHT,XYLEM,PHYSIOLOGY,PROTEASES,PROTEINS}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{1281--1299}},
  title        = {{A phloem‐localized Arabidopsis metacaspase (AtMC3) improves drought tolerance}},
  url          = {{http://doi.org/10.1111/nph.19022}},
  volume       = {{239}},
  year         = {{2023}},
}
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