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Title: Orchestration of carbohydrate processing for crassulacean acid metabolism

The production of phosphoenolpyruvate as a substrate for nocturnal CO 2 uptake represents a significant sink for carbohydrate in CAM plants which has to be balanced with the provisioning of carbohydrate for growth and maintenance. In starch-storing CAM species, diversification in chloroplast metabolite transporters, and the deployment of both phosphorolytic and hydrolytic routes of starch degradation accommodate a division of labour in directing C-skeletons towards nocturnal carboxylation or production of sucrose for growth. In soluble-sugar storing CAM plants, the vacuole plays a central role in managing carbon homeostasis. The molecular identities of various types of vacuolar sugar transporters have only been identified for C 3 species within the last 10 years. In conclusion, the recent availability of CAM genomes enables the identification of putative orthologues of vacuolar sugar transporters which represent strategic targets for orchestrating the diel provisioning of substrate for nocturnal carboxylation and growth.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Newcastle Univ., Newcastle upon Tyne (United Kingdom). School of Biology; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Biochemistry & Cellular and Molecular Biology
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division
  4. Univ. of Nevada, Reno, NV (United States). Dept. of Biochemistry and Molecular Biology
Publication Date:
Grant/Contract Number:
AC05-00OR22725; SC0008834
Type:
Accepted Manuscript
Journal Name:
Current Opinion in Plant Biology
Additional Journal Information:
Journal Volume: 31; Journal Issue: C; Journal ID: ISSN 1369-5266
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1355885
Alternate Identifier(s):
OSTI ID: 1357688

Borland, Anne M., Guo, Hao-Bo, Yang, Xiaohan, and Cushman, John C.. Orchestration of carbohydrate processing for crassulacean acid metabolism. United States: N. p., Web. doi:10.1016/j.pbi.2016.04.001.
Borland, Anne M., Guo, Hao-Bo, Yang, Xiaohan, & Cushman, John C.. Orchestration of carbohydrate processing for crassulacean acid metabolism. United States. doi:10.1016/j.pbi.2016.04.001.
Borland, Anne M., Guo, Hao-Bo, Yang, Xiaohan, and Cushman, John C.. 2016. "Orchestration of carbohydrate processing for crassulacean acid metabolism". United States. doi:10.1016/j.pbi.2016.04.001. https://www.osti.gov/servlets/purl/1355885.
@article{osti_1355885,
title = {Orchestration of carbohydrate processing for crassulacean acid metabolism},
author = {Borland, Anne M. and Guo, Hao-Bo and Yang, Xiaohan and Cushman, John C.},
abstractNote = {The production of phosphoenolpyruvate as a substrate for nocturnal CO2 uptake represents a significant sink for carbohydrate in CAM plants which has to be balanced with the provisioning of carbohydrate for growth and maintenance. In starch-storing CAM species, diversification in chloroplast metabolite transporters, and the deployment of both phosphorolytic and hydrolytic routes of starch degradation accommodate a division of labour in directing C-skeletons towards nocturnal carboxylation or production of sucrose for growth. In soluble-sugar storing CAM plants, the vacuole plays a central role in managing carbon homeostasis. The molecular identities of various types of vacuolar sugar transporters have only been identified for C3 species within the last 10 years. In conclusion, the recent availability of CAM genomes enables the identification of putative orthologues of vacuolar sugar transporters which represent strategic targets for orchestrating the diel provisioning of substrate for nocturnal carboxylation and growth.},
doi = {10.1016/j.pbi.2016.04.001},
journal = {Current Opinion in Plant Biology},
number = C,
volume = 31,
place = {United States},
year = {2016},
month = {4}
}