Journal
CELLULAR AND MOLECULAR LIFE SCIENCES
Volume 77, Issue 19, Pages 3711-3728Publisher
SPRINGER BASEL AG
DOI: 10.1007/s00018-020-03496-w
Keywords
Cambium; Phloem; Xylem; Wood; Plasticity
Categories
Funding
- Spanish Ministry of Science and Universities [BIO2016-79147-R, BFU2016-80621-P, RYC-2014-15752]
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Plant vascular development is a complex process culminating in the generation of xylem and phloem, the plant transporting conduits. Xylem and phloem arise from specialized stem cells collectively termed (pro)cambium. Once developed, xylem transports mainly water and mineral nutrients and phloem transports photoassimilates and signaling molecules. In the past few years, major advances have been made to characterize the molecular, genetic and physiological aspects that govern vascular development. However, less is known about how the environment re-shapes the process, which molecular mechanisms link environmental inputs with developmental outputs, which gene regulatory networks facilitate the genetic adaptation of vascular development to environmental niches, or how the first vascular cells appeared as an evolutionary innovation. In this review, we (1) summarize the current knowledge of the mechanisms involved in vascular development, focusing on the model species Arabidopsis thaliana, (2) describe the anatomical effect of specific environmental factors on the process, (3) speculate about the main entry points through which the molecular mechanisms controlling of the process might be altered by specific environmental factors, and (4) discuss future research which could identify the genetic factors underlying phenotypic plasticity of vascular development.
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