Proteomics

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Proteome analysis of the soybean nodule phosphorus response mechanism and characterisation of stress-induced ribosome structural and protein expression changes


ABSTRACT: In agroecosystems, a plant-usable form of nitrogen is mainly generated by legume-based biological nitrogen fixation, a process that requires phosphorus (P) as an essential nutrient. To investigate the physiological mechanism whereby phosphorus influences soybean nodule nitrogen fixation, soybean root nodules were exposed to four phosphate levels: 1 mg/L (P stress), 11 mg/L (P stress), 31 mg/L (Normal P), 61 mg/L (High P) then proteome analysis of nodules was conducted to identify phosphorus-associated proteome changes. We found that phosphorus stress-induced ribosomal protein structural changes were associated with altered key root nodule protein synthesis profiles. Importantly, up-regulated expression of peroxidase was observed as an important phosphorus stress-induced nitrogen fixation-associated adaptation that supported two nodule-associated activities: scavenging of reactive oxygen species (ROS) and cell wall growth. In addition, phosphorus transporter (PT) and purple acid phosphatase (PAPs) were up-regulated that regulated phosphorus transport and utilisation to maintain phosphorus balance and nitrogen fixation function in phosphorus-stressed root nodules.

INSTRUMENT(S): Orbitrap Fusion, 6410 Triple Quadrupole LC/MS, Q Exactive HF, Q-Tof ultima, LTQ Orbitrap Elite

ORGANISM(S): Vigna Mungo (rice Bean) (black Gram)

TISSUE(S): Root

SUBMITTER: Yubo Yao  

LAB HEAD: Yubo Yao

PROVIDER: PXD033875 | Pride | 2022-08-11

REPOSITORIES: Pride

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Publications

Proteome Analysis of the Soybean Nodule Phosphorus Response Mechanism and Characterization of Stress-Induced Ribosome Structural and Protein Expression Changes.

Yao Yubo Y   Yuan Hongmei H   Wu Guangwen G   Ma Chunmei C   Gong Zhenping Z  

Frontiers in plant science 20220609


In agroecosystems, a plant-usable form of nitrogen is mainly generated by legume-based biological nitrogen fixation, a process that requires phosphorus (P) as an essential nutrient. To investigate the physiological mechanism whereby phosphorus influences soybean nodule nitrogen fixation, soybean root nodules were exposed to four phosphate levels: 1 mg/L (P stress), 11 mg/L (P stress), 31 mg/L (Normal P), and 61 mg/L (High P) then proteome analysis of nodules was conducted to identify phosphorus-  ...[more]

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