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- Title
Plant environmental sensing relies on specialized plastids.
- Authors
Mackenzie, Sally A; Mullineaux, Philip M
- Abstract
In plants, plastids are thought to interconvert to various forms that are specialized for photosynthesis, starch and oil storage, and diverse pigment accumulation. Post-endosymbiotic evolution has led to adaptations and specializations within plastid populations that align organellar functions with different cellular properties in primary and secondary metabolism, plant growth, organ development, and environmental sensing. Here, we review the plastid biology literature in light of recent reports supporting a class of 'sensory plastids' that are specialized for stress sensing and signaling. Abundant literature indicates that epidermal and vascular parenchyma plastids display shared features of dynamic morphology, proteome composition, and plastid–nuclear interaction that facilitate environmental sensing and signaling. These findings have the potential to reshape our understanding of plastid functional diversification.
- Subjects
PLASTIDS; METABOLISM; SECONDARY metabolism; MORPHOGENESIS; CELL physiology
- Publication
Journal of Experimental Botany, 2022, Vol 73, Issue 21, p7155
- ISSN
0022-0957
- Publication type
Article
- DOI
10.1093/jxb/erac334