Enzyme-Less Growth in Chara and Terrestrial Plants
Enzyme-less chemistry appears to control the growth rate of the green alga Chara corallina. The chemistry occurs in the wall where a calcium pectate cycle determines both the rate of wall enlargement and the rate of pectate deposition into the wall. The process is the first to indicate that a wall polymer can control how a plant cell enlarges after exocytosis releases the polymer to the wall. This raises the question of whether other species use a similar mechanism. Chara is one of the closest relatives of the progenitors of terrestrial plants and during the course of evolution, new wall features evolved while pectate remained one of the most conserved components. In addition, charophytes contain auxin which affects Chara in ways resembling its action in terrestrial plants. Furthermore, this review considers whether more recently acquired wall features require different mechanisms to explain cell expansion.
- Authors:
-
[1]
- Univ. of Missouri, Columbia, MO (United States). Division of Plant Sciences, College of Agriculture, Food and Natural Resources
- Publication Date:
- Type:
- Accepted Manuscript
- Journal Name:
- Frontiers in Plant Science
- Additional Journal Information:
- Journal Volume: 7; Journal ID: ISSN 1664-462X
- Publisher:
- Frontiers Research Foundation
- Research Org:
- Univ. of Missouri, Columbia, MO (United States)
- Sponsoring Org:
- USDOE Office of Science (SC)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; 60 APPLIED LIFE SCIENCES; calcium pectate; cell enlargement; Chara corallina; homogalacturonan; pectin; polygalacturonic acid; turgor; wall deposition
- OSTI Identifier:
- 1395863
- Free Publicly Accessible Full Text
-
Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.3389/fpls.2016.00866