English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Acyl carrier proteins (ACPs) are a group of small acidic proteins functioning as important cofactors in the  de novo  synthesis of fatty acids. In  Arabidopsis , ACPs are encoded by a small gene family comprising five plastid members,  AtACP1  to  AtACP5 , and three mitochondrial members. The biological functions and the transcriptional responses to abiotic stresses of most AtACPs have yet to be elucidated. The present study extends previous findings and provides new knowledge on the function of ACPs by examining the responses of AtACP-encoding genes to several abiotic stresses and, in particular, the role of  AtACP5  in the adaptation to salt stress. Phylogenetic analysis showed that AtACP1, AtACP2, AtACP3, and AtACP5 can be classified into one group and separated from a group comprising AtACP4 and ACP homologs from related species. Quantitative RT-PCR analysis revealed that the expression of  AtACP1, AtACP2 , and  AtACP3  was induced by drought. Both iron deficiency and nitrogen starvation resulted in down-regulation of  AtACP4 . The most pronounced response was observed for  AtACP5 , the expression of which was dramatically decreased by salt stress. Knock-out of  AtACP5  showed increased sensitivity to NaCl stress, whereas transgenic lines overexpressing  AtACP5  displayed increased salt tolerance relative to the wild-type. Overexpression of  AtACP5  further led to an altered composition of fatty acids, mainly a decrease of oleic acid (C18:1) and an increase of palmitic acid (C16:0), and to a lower Na + /K +  ratio when compared to the salt stressed wild-type. The comprehensive transcriptional information on the small plastid AtACP gene family in response to various abiotic stresses and the further investigation of the  AtACP5  indicate that  AtACP5  might be critical for salt tolerance through alterations of the composition of fatty acids and, subsequently, the Na + /K +  ratio.

frontiers in plant science

Genes of ACYL CARRIER PROTEIN Family Show Different Expression Profiles and Overexpression of ACYL CARRIER PROTEIN 5 Modulates Fatty Acid Composition and Enhances Salt Stress Tolerance in Arabidopsis