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Ethylene signaling triggered by low concentrations of ascorbic acid regulates biomass accumulation in Arabidopsis thaliana.

Free radical biology & medicine - 1 Jul 2018

Caviglia M, Mazorra Morales L M, Concellón A, Gergoff Grozeff G E, Wilson M, Foyer C H, Bartoli C G

Abstract excerpt

Ascorbic acid (AA) is a major redox buffer in plant cells. The role of ethylene in the redox signaling pathways that influence photosynthesis and growth was explored in two independent AA deficient Arabidopsis thaliana mutants (vtc2-1 and vtc2-4). Both mutants, which are defective in the AA biosynthesis gene GDP-L-galactose phosphorylase, produce higher amounts of ethylene than wt plants. In contrast to the wt,...

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PMID: 29410312
DOI: 10.1016/j.freeradbiomed.2018.01.032

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