title: Comparative proteomic analysis of differentially expressed proteins in β-aminobutyric acid enhanced Arabidopsis thaliana tolerance to simulated acid rain.
abstract: Acid rain is a worldwide environmental issue that has seriously destroyed forest ecosystems. As a highly effective and broad-spectrum plant resistance-inducing agent, β-aminobutyric acid could elevate the tolerance of Arabidopsis when subjected to simulated acid rain. Using comparative proteomic strategies, we analyzed 203 significantly varied proteins of which 175 proteins were identified responding to β-aminobutyric acid in the absence and presence of simulated acid rain. They could be divided into ten groups according to their biological functions. Among them, the majority was cell rescue, development and defense-related proteins, followed by transcription, protein synthesis, folding, modification and destination-associated proteins. Our conclusion is β-aminobutyric acid can lead to a large-scale primary metabolism change and simultaneously activate antioxidant system and salicylic acid, jasmonic acid, abscisic acid signaling pathways. In addition, β-aminobutyric acid can reinforce physical barriers to defend simulated acid rain stress.
authors.affiliation: Key Laboratory for Coast and Wetland Ecosystem of Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, P R China.
authors.forename: Tingwu
authors.initials: T
authors.lastname: Liu
authors.forename: Xinwu
authors.initials: X
authors.lastname: Jiang
authors.forename: Wuliang
authors.initials: W
authors.lastname: Shi
authors.forename: Juan
authors.initials: J
authors.lastname: Chen
authors.forename: Zhenming
authors.initials: Z
authors.lastname: Pei
authors.forename: Hailei
authors.initials: H
authors.lastname: Zheng
mesh_terms: D015258:Acid Rain; D000613:Aminobutyrates / Q000494:pharmacology*; D017360:Arabidopsis / Q000187:drug effects* / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000378:metabolism*; D015180:Electrophoresis, Gel, Two-Dimensional; D008956:Models, Chemical; D018515:Plant Leaves / Q000187:drug effects; D020543:Proteome / Q000187:drug effects* / Q000378:metabolism; D040901:Proteomics / Q000379:methods*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013312:Stress, Physiological
chemical_list: D015258:Acid Rain; D000613:Aminobutyrates; D029681:Arabidopsis Proteins; D020543:Proteome; C047667:3-aminobutyric acid