In:
Frontiers in Plant Science, Frontiers Media SA, Vol. 14 ( 2023-2-23)
Abstract:
Cadmium (Cd) pollution is a serious threat to plant growth and human health. Although the mechanisms controlling the Cd response have been elucidated in other species, they remain unknown in Sorghum ( Sorghum bicolor (L.) Moench), an important C 4 cereal crop. Here, one-week-old sorghum seedlings were exposed to different concentrations (0, 10, 20, 50, 100, and 150 μM) of CdCl 2 and the effects of these different concentrations on morphological responses were evaluated. Cd stress significantly decreased the activities of the enzymes peroxidase (POD), superoxide dismutase (SOD), glutathione S-transferase (GST) and catalase (CAT), and increased malondialdehyde (MDA) levels, leading to inhibition of plant height, decreases in lateral root density and plant biomass production. Based on these results, 10 μM Cd concentration was chosen for further transcription and metabolic analyses. A total of 2683 genes and 160 metabolites were found to have significant differential abundances between the control and Cd-treated groups. Multi-omics integrative analysis revealed that the flavonoid biosynthesis pathway plays a critical role in regulating Cd stress responses in sorghum. These results provide new insights into the mechanism underlying the response of sorghum to Cd.
Type of Medium:
Online Resource
ISSN:
1664-462X
DOI:
10.3389/fpls.2023.1144265
DOI:
10.3389/fpls.2023.1144265.s001
DOI:
10.3389/fpls.2023.1144265.s002
DOI:
10.3389/fpls.2023.1144265.s003
DOI:
10.3389/fpls.2023.1144265.s004
DOI:
10.3389/fpls.2023.1144265.s005
DOI:
10.3389/fpls.2023.1144265.s006
DOI:
10.3389/fpls.2023.1144265.s007
DOI:
10.3389/fpls.2023.1144265.s008
DOI:
10.3389/fpls.2023.1144265.s009
DOI:
10.3389/fpls.2023.1144265.s010
DOI:
10.3389/fpls.2023.1144265.s011
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2023
detail.hit.zdb_id:
2687947-5
detail.hit.zdb_id:
2613694-6