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PXD015066

PXD015066 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleThe leaves of creeping bentgrass (Agrostis stolonifera) LC−ESI−MS/MS
DescriptionThe global emergence of soil salinization poses a serious challenge to many countries and regions. γ-Aminobutyric acid (GABA) is involved in systemic regulation of plant adaptation to salt stress, but the underling molecular and metabolic mechanism still remains largely unknown. The elevated endogenous GABA level by exogenous application of GABA could significantly improve salt tolerance in creeping bentgrass with the enhancement of antioxidant capacity, photosynthetic characteristics, osmotic adjustment (OA), and water use efficiency. GABA strongly upregulated transcript levels of AsPPa2, AsATPaB2, AsNHX2/4/6, and AsSOS1/20 in roots involved in enhanced capacity of Na+ compartmentalization and mitigation of Na+ toxicity in cytosol. Significant downregulation of AsHKT1/4 expression could be induced by GABA in leaves in relation to maintenance of significantly lower Na+ accumulation and higher K+/Na+ ratio. GABA-depressed aquaporins (AQPs) expression and accumulation induced declines in stomatal conductance and transpiration, thereby reducing water loss in leaves during salt stress. For metabolic regulation, GABA primarily enhanced sugars and amino acids accumulation and metabolism largely contributing to improved salt tolerance through maintaining OA and metabolic homeostasis. Other major pathways could be responsible for GABA-induced salt tolerance including increases in antioxidant defense, heat shock proteins, dehydrins, and myo-inositol accumulation in leaves. Integrative analyses of molecular, protein, metabolic, and physiological changes reveal systemic function of GABA on regulating ions, water, and metabolic homeostasis in non-halophytic creeping bentgrass under salt stress.
HostingRepositoryPRIDE
AnnounceDate2020-01-13
AnnouncementXMLSubmission_2020-01-17_06:13:49.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterZhou Li
SpeciesList scientific name: Agrostis stolonifera; NCBI TaxID: 63632;
ModificationListiTRAQ8plex-116 reporter+balance reagent acylated residue
InstrumentTripleTOF 5600
Dataset History
RevisionDatetimeStatusChangeLog Entry
02019-08-19 00:46:15ID requested
12020-01-13 04:52:20announced
22020-01-17 06:13:50announced2020-01-17: Updated publication reference for PubMed record(s): 31916766.
Publication List
Li Z, Cheng B, Zeng W, Zhang X, Peng Y, -Aminobutyric Acid in Regulating Ionic, Water, and Metabolic Homeostasis in Creeping Bentgrass under Salt Stress. J Proteome Res, 19(2):769-780(2020) [pubmed]
Keyword List
submitter keyword: bentgrass, proteomics, LC−ESI−MS/MS, salt stress
Contact List
Yan Peng
contact affiliationSichuan Agricultural University
contact emailpengyanlee@163.com
lab head
Zhou Li
contact affiliationSichuan Agricultural University
contact emaillizhou1986814@163.com
dataset submitter
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Dataset FTP location
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