Specialized Plastids Trigger Tissue-Specific Signaling for Systemic Stress Response in Plants

Jesús Beltrán, Yashitola Wamboldt, Robersy Sanchez, Evan W. LaBrant, Hardik Kundariya, Kamaldeep S. Virdi, Christian Elowsky, Sally A. Mackenzie

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Plastids comprise a complex set of organelles in plants that can undergo distinctive patterns of differentiation and redifferentiation during their lifespan. Plastids localized to the epidermis and vascular parenchyma are distinctive in size, structural features, and functions. These plastids are termed "sensory" plastids, and here we show their proteome to be distinct from chloroplasts, with specialized stress-associated features. The distinctive sensory plastid proteome in Arabidopsis (Arabidopsis thaliana) derives from spatiotemporal regulation of nuclear genes encoding plastid-targeted proteins. Perturbation caused by depletion of the sensory plastid-specific protein MutS HOMOLOG1 conditioned local, programmed changes in gene networks controlling chromatin, stress-related phytohormone, and circadian clock behavior and producing a global, systemic stress response in the plant. We posit that the sensory plastid participates in sensing environmental stress, integrating this sensory function with epigenetic and gene expression circuitry to condition heritable stress memory.

Original languageEnglish (US)
Pages (from-to)672-683
Number of pages12
JournalPlant physiology
Volume178
Issue number2
DOIs
StatePublished - Oct 1 2018

Fingerprint

Plastids
plastids
stress response
Chloroplast Proteins
Proteome
Arabidopsis
proteome
Circadian Clocks
Plant Growth Regulators
Gene Regulatory Networks
Chloroplasts
Epigenomics
Epidermis
Organelles
Chromatin
Blood Vessels
tissues
epidermis (plant)
blood vessels
epigenetics

All Science Journal Classification (ASJC) codes

  • Physiology
  • Genetics
  • Plant Science

Cite this

Beltrán, Jesús ; Wamboldt, Yashitola ; Sanchez, Robersy ; LaBrant, Evan W. ; Kundariya, Hardik ; Virdi, Kamaldeep S. ; Elowsky, Christian ; Mackenzie, Sally A. / Specialized Plastids Trigger Tissue-Specific Signaling for Systemic Stress Response in Plants. In: Plant physiology. 2018 ; Vol. 178, No. 2. pp. 672-683.
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Beltrán, J, Wamboldt, Y, Sanchez, R, LaBrant, EW, Kundariya, H, Virdi, KS, Elowsky, C & Mackenzie, SA 2018, 'Specialized Plastids Trigger Tissue-Specific Signaling for Systemic Stress Response in Plants', Plant physiology, vol. 178, no. 2, pp. 672-683. https://doi.org/10.1104/pp.18.00804

Specialized Plastids Trigger Tissue-Specific Signaling for Systemic Stress Response in Plants. / Beltrán, Jesús; Wamboldt, Yashitola; Sanchez, Robersy; LaBrant, Evan W.; Kundariya, Hardik; Virdi, Kamaldeep S.; Elowsky, Christian; Mackenzie, Sally A.

In: Plant physiology, Vol. 178, No. 2, 01.10.2018, p. 672-683.

Research output: Contribution to journalArticle

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