PXD025234

PXD025234 is an original dataset announced via ProteomeXchange.

Title	Cold acclimation process under limited light conditions in Arabidopsis thaliana
Description	Plants in temperate regions have evolved mechanisms to survive sudden temperature drops. Previous reports have indicated that the cold acclimation mechanism is light-dependent and does not fully operate under a low light intensity. In these studies, plants were grown under a long-day photoperiod and were more sensitive to freezing stress. However, winter annuals like Arabidopsis thaliana Col-0 germinate in the fall, overwinter as rosettes, and therefore must acclimate under short photoperiods and low irradiance. The role of light intensity was analysed in plants grown under a short-day photoperiod at the growth stage 1.14. Plants were acclimated at 4 °C for seven days under 100 and 20 μmol m-2s-1 PPFD for control and limited-light conditions, respectively. All cold acclimated plants accumulated molecular markers reportedly associated with acquired freezing tolerance, including proline, sucrose, CBFs, and COR gene protein products dehydrins and low-temperature-responsive proteins LTIs. Observed changes indicated that low PPFD did not inhibit the cold acclimation process, and the freezing stress experiment confirmed similar survival rates. The molecular analysis found distinct PPFD-specific adaptation mechanisms that were manifested in contrasting content of anthocyanins, cytokinin conjugates, abundances of proteins forming photosystems, and enzymes of protein, energy, and ROS metabolism pathways. Finally, this study led to the identification of putative proteins and metabolite markers correlating with susceptibility to freezing stress of non-acclimated plants grown under low PPFD. Our data show that Arabidopsis plants grown under short-day photoperiod can be fully cold-acclimated under limited light conditions, employing standard and PPFD-specific pathways.
HostingRepository	PRIDE
AnnounceDate	2021-07-08
AnnouncementXML	Submission_2021-07-07_21:46:58.591.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Martin Cerny
SpeciesList	scientific name: Arabidopsis thaliana (Mouse-ear cress); NCBI TaxID: 3702;
ModificationList	iodoacetamide derivatized residue
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2021-04-06 19:47:56	ID requested
⏵ 1	2021-07-07 21:46:58	announced

Dataset with its publication pending

submitter keyword: Arabidopsis thaliana, cold, acclimation, freezing stress, Light, Proteome, Metabolome, Cytokinin

Martin Cerny
contact affiliation	Mendel University in Brno
contact email	martincerny83@gmail.com
lab head
Martin Cerny
contact affiliation	Mendel University in Brno
contact email	martincerny83@gmail.com
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD025234
     1. Label: PRIDE project
     2. Name: Cold acclimation process under limited light conditions in Arabidopsis thaliana