PXD053448-1

PXD053448 is an original dataset announced via ProteomeXchange.

Title	Comparative proteomics in tall fescue to reveal underlying mechanisms for improving Photosystem Ⅱ thermotolerance during heat stress memory
Description	A total of 3,851 proteins were detected, with quantitative information available for 3,835 proteins. Among these, we identified 1,423 differentially abundant proteins (DAPs), including 526 proteins that were classified as Heat Stress Memory Proteins (HSMPs). GO and KEGG enrichment analyses revealed that the HSMPs were primarily associated with the "autophagy" in R4 and with "PSII repair", "HSP binding", and "peptidase activity" in S5. Notably, we identified 7 chloroplast-localized HSMPs (HSP21, DJC77, EGY3, LHCA4, LQY1, PSBR and DEGP8, R4/S0>1.2, S5/S0>1.2), which were considered to be effectors linked to PSII heat stress memory, predominantly in cluster 4. Protein-protein interaction (PPI) analysis indicated that the ubiquitin-proteasome system, with key nodes at UPL3, RAD23b, and UCH3, might play a role in the selective retention of memory effectors in the R4 stage.These findings provide valuable insights into the establishment of heat stress memory under recurring high-temperature episodes and offer a conceptual framework for breeding thermotolerant crops with improved PSII functionality.
HostingRepository	iProX
AnnounceDate	2024-06-26
AnnouncementXML	Submission_2024-06-26_19:40:29.304.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Guangyang Wang
SpeciesList	scientific name: Festuca arundinacea; NCBI TaxID: 4606;
ModificationList	No PTMs are included in the dataset
Instrument	Q Exactive

Revision	Datetime	Status	ChangeLog Entry
0	2024-06-26 19:39:37	ID requested
⏵ 1	2024-06-26 19:40:29	announced

Dataset with its publication pending

submitter keyword: Heat stress memory, Comparative proteomics, Photosystem Ⅱ, Tall fescue, TMT labeling

Guangyang Wang
contact affiliation	Ludong University
contact email	1162933849@qq.com
lab head
Guangyang Wang
contact affiliation	Ludong University
contact email	1162933849@qq.com
dataset submitter

iProX dataset URI