Global histone H3 hyperacetylation-associated epigenetic changes induced in ethephon-primed sprouts of soybean [Glycine max (L.) Merrill]
The concept of plant growth regulators (PGRs) in modulating the plant physiological processes through epigenetic modification(s) is emerging. The present work aims to elucidate the histone (de)acetylation-associated epigenetic changes in ethylene (ET)-primed sprouts of soybean [ Glycine max (L.) Mer...
Saved in:
Published in | Acta physiologiae plantarum Vol. 42; no. 2 |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.02.2020
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The concept of plant growth regulators (PGRs) in modulating the plant physiological processes through epigenetic modification(s) is emerging. The present work aims to elucidate the histone (de)acetylation-associated epigenetic changes in ethylene (ET)-primed sprouts of soybean [
Glycine max
(L.) Merrill]. Our results demonstrated that ethephon (donor source of ET) priming (ETp) in soybean significantly enhanced the: (1) germination rate, (2) global histone H3 (H3ac) and H3 lysine 9 (H3K9ac) acetylation levels, (3) histone acetyltransferases activity (concomitant with reduced histone deacetylases activity), (4) cellular acetyl-CoA pool and (5) global de novo RNA synthesis. As a gene-specific case study, ETp resulted in relative reduced starch content, concomitant with an enhanced mRNA accumulation, transcriptional rate and proximal promoter H3K9ac levels of α-amylase 1 (
GmαAMY1
). Taken together, the proposed epigenetic role of ET as a ‘histone-code’ modulator in soybean sprouts could provide a novel insight on PGR-induced epigenetic re-programming and signifies a broader scope for future epigenetic studies in other agronomical important crops. |
---|---|
ISSN: | 0137-5881 1861-1664 |
DOI: | 10.1007/s11738-020-3015-6 |