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. 2015 Mar 11;6:98. doi: 10.3389/fpls.2015.00098

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Copyright © 2015 Kundu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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2-oxoglutarate-dependent dioxygenases as stimulus reinforcers. (A) Anabolic (GA20ox, GA3ox) and catabolic (GA2ox) alpha-ketoglutarate dependent enzymes function to prepare a cell mileau conducive to growth and development (increased formation and storage of alkaloids, expansins, glycosylases, and decreased formation of lignins) and a modulatory antioxidant process (formation of flavonoids). (B) Plant P4Hs catalyze the hydroxylation of proline-rich peptide segments of cell wall glycoproteins, stabilizing the macromolecule. Conversely, decreased activity might result in loosely networked unstable components, that are required for continued growth.