The Regulation of Nitrate Reductases in Response to Abiotic Stress in Arabidopsis

Tang, Xianli1,2,3; Peng, Yang2,3; Li, Zheng1; Guo, Hongwei2,3; Xia, Xinli1; Li, Bosheng2,3; Yin, Weilun1

2022-02-01

10.3390/ijms23031202

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES   影响因子和分区

1422-0067

The two homologous genes, NIA1 and NIA2, encode nitrate reductases in Arabidopsis, which govern the reduction of nitrate to nitrite. This step is the rate-limiting step of the nitrate assimilation and utilization. Therefore, the regulation of NIA1 and NIA2 is important for plant development and growth. Although they are similar in sequence and structure, their regulations are different. Genetic analysis uncovers that NIA1, rather than NIA2, plays a predominant role in adopting to ABA stress. Although both long-term stress conditions can cause an improvement in NIA1 levels, a decrease in NIA1 levels under short-term treatments seems to be necessary for plants to switch from the growth status into the adopting status. Interestingly, the downregulation of the NR is distinct under different stress conditions. Under ABA treatment, the NR proteins are degraded via a 26S-proteasome dependent manner, while the transcriptional regulation is the main manner to rapidly reduce the NIA1 levels under nitrogen deficiency and NaCl stress conditions. These results indicate that under stress conditions, the regulation of NIA1 is complex, and it plays a key role in regulating the balance between growth and adaptation.

NIA1 NIA2 ABA protein degradation NaCl

SCI

英语

通讯

National Natural Science Foundation of China[31770649,32071734]

Biochemistry & Molecular Biology ; Chemistry

Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary

WOS:000755986700001

MDPI

CHEMISTRY

Web of Science

1.Beijing Forestry Univ, Coll Biol Sci & Technol, Beijing Adv Innovat Ctr Tree Breeding Mol Design, Natl Engn Lab Tree Breeding, Beijing 100083, Peoples R China
2.Southern Univ Sci & Technol, Dept Biol, Sch Life Sci, Inst Plant & Food Sci, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Guangdong Higher Educ Inst, Sch Life Sci, Key Lab Mol Design Plant Cell Factory, Shenzhen 518055, Peoples R China

Tang, Xianli,Peng, Yang,Li, Zheng,et al. The Regulation of Nitrate Reductases in Response to Abiotic Stress in Arabidopsis[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2022,23(3).

Tang, Xianli.,Peng, Yang.,Li, Zheng.,Guo, Hongwei.,Xia, Xinli.,...&Yin, Weilun.(2022).The Regulation of Nitrate Reductases in Response to Abiotic Stress in Arabidopsis.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,23(3).

Tang, Xianli,et al."The Regulation of Nitrate Reductases in Response to Abiotic Stress in Arabidopsis".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 23.3(2022).