Elucidating the biochemical basis of trans-16:1 fatty acid change in leaves during cold acclimation in wheat.

ABSTRACT: In plant cells, phosphatidylglycerol (PG) in the chloroplast has a characteristic trans-∆3-hexadecenoic acid (t16:1) at the sn-2 position. The t16:1 content in wheat leaf tissues decreases during cold treatment, but the significance of this fatty acid compositional change and the underlying biochemical mechanism remains poorly understood. Using a large collection of wheat cultivars displaying a varying capacity of freezing tolerance, we show for the first time under field conditions that this low temperature induced t16:1 change is associated with winter hardiness. To explore the metabolic mechanism responsible for the reduction of t16:1, we performed detailed lipid analysis and comparative transcriptome study with four selected wheat lines under cold acclimation. Our

SUBMITTER: Li Q 

PROVIDER: S-EPMC10168083 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature