A new substrate cycle in plants. Evidence for a high glucose-phosphate-to-glucose turnover from in vivo steady-state and pulse-labeling experiments with [13C]glucose and [14C]glucose.

@article{Alonso2005ANS,
  title={A new substrate cycle in plants. Evidence for a high glucose-phosphate-to-glucose turnover from in vivo steady-state and pulse-labeling experiments with [13C]glucose and [14C]glucose.},
  author={Ana Paula Alonso and H{\'e}l{\`e}ne Vigeolas and Philippe Raymond and Dominique Rolin and Martine Dieuaide-Noubhani},
  journal={Plant physiology},
  year={2005},
  volume={138 4},
  pages={2220-32}
}
Substrate (futile) cycling involving carbohydrate turnover has been widely reported in plant tissues, although its extent, mechanisms, and functions are not well known. In this study, two complementary approaches, short and steady-state labeling experiments, were used to analyze glucose metabolism in maize (Zea mays) root tips. Unidirectional rates of synthesis for storage compounds (starch, Suc, and cell wall polysaccharides) were determined by short labeling experiments using [U-14C]glucose… CONTINUE READING
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