Dataset Information

The changes of Proteomeand Protein Phosphorylation reveals the protective roles of exogenous nitrogen in alleviating cadmium toxicityin poplar plants

ABSTRACT: Phytoremediation soil polluted by heavy metal has been drawn on a worldwide attention from human society. However, how to improve the efficiency of plant remediation of soil contaminated by cadmium remains unknown. Previous studies showed that nitrogen (N) significantly enhanced cadmium uptake in poplar plants. In order to further explore the key role of N in the detoxification against cadmium stress in plants, this study try to investigate the poplar proteome and phosphoproteome difference between Cd stress and Cd+N treatment. In total, 5838 of the 6573 identified were quantified. With a fold-change threshold >1.3 and p-value<0.05, 375 and 108 proteins were up- and down-regulated by Cd stress when compared to the control, 42 and 89 proteins were up- and down-regulated, respectively, in Cd+N / Cd group, 522 and 127 proteins were up- and down-regulated, respectively, in Cd+N / CK group. In addition, the phosphoproteome data was obtained after the proteomic difference was normalized, and 1471phosphosites in 721 proteins were quantified. Based on a fold-change threshold >1.2, P-value <0.05, the Cd stress up-regulated 8 phosphosites in 8 proteins and down-regulated 69 phosphosites in 58 proteins, whereas N+Cd treatment up-regulated 95 phosphosites in 86 proteins and down-regulated 17 phosphosites in 17 proteins when compared to sole Cd stress. In addition, N+Cd treatment up-regulated 74 phosphosites in 60 proteins and down-regulated 42 phosphosites in 37 proteins when compared to the control.Several putative responses to stress proteins, transcriptional and translational regulation factors were up-regulated by addition ofexogenous nitrogen followed Cd stress at the proteome and phosphoproteome levels. Especially, heat shock protein 70 (HSP70), peroxidase (POD), zinc finger protein (ZFP), ABC transporter protein (ABC), eukaryotic translation initiation factor (elF) and splicing factor 3B subunit 1-like (SF3BI) were up-regulated by Cd+N treatment whether at the proteome or at the phosphoproteome levels, which was need to further study. In a word, taken together of proteome and phosphoproteome data, nitrogen serves a protective role in plants treated with Cd by multiple ways.

OTHER RELATED OMICS DATASETS IN: GSE140398

INSTRUMENT(S): Q Exactive

ORGANISM(S): Populus Yunnanensis

TISSUE(S): Leaf

SUBMITTER: xiaonan fu

LAB HEAD: Fan Zhang

PROVIDER: PXD013360 | Pride | 2020-05-26

REPOSITORIES: Pride

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Changes in Proteome and Protein Phosphorylation Reveal the Protective Roles of Exogenous Nitrogen in Alleviating Cadmium Toxicity in Poplar Plants.

Huang Jinliang J Wu Xiaolu X Tian Feifei F Chen Qi Q Luo Pengrui P Zhang Fan F Wan Xueqin X Zhong Yu Y Liu Qinglin Q Lin Tiantian T

International journal of molecular sciences 20191231 1

Phytoremediation soil polluted by cadmium has drawn worldwide attention. However, how to improve the efficiency of plant remediation of cadmium contaminated soil remains unknown. Previous studies showed that nitrogen (N) significantly enhances cadmium uptake and accumulation in poplar plants. In order to explore the important role of nitrogen in plants' responses to cadmium stress, this study investigates the poplar proteome and phosphoproteome difference between Cd stress and Cd + N treatment. ...[more]

PMID: 31906144

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