PXD050599

PXD050599 is an original dataset announced via ProteomeXchange.

Title	Maize plastoglobule and thylakoid proteomes during water deficit and recovery
Description	The maize plastoglobule proteome has not been reported in the literature, nor has its dynamic repsonse to water-deficit (i.e. drought) been investigated. To address this shortcoming, we have employed deep bottom-up proteomics of isolated plastoglobules, as well as isolated thylakoids, from 3-week-old maize seedlings experienceing a drought stress treatment. Maize plants were not watered for 17 days, during which a decline in photosynthetic parameters and leaf wilting and tip chlorosis was observed, followed by re-watering from which plants quickly recovered. Plastoglobules and thylakoods were isolated at six different time points during the stress treatment to monitor dynamic changes during entry itno and recovery from the stress. These siz time points are: 7 days without watering (dWW), 12 dWW, 16 dWW, 17 dWW, 1 day after re-watering (dRW), and 3 dRW. The 7 dWW time point represents the basal state prior to imposition of stress (plants are only watered once every 7 days), while the 17 dWW represents the peak stress time point. We find tailored changes to plastoglobule and thylakoid consistent with triggering of specific stress tolerance mechanisms, but no indication of senescence processes were observed. Our results provide the first public report of the maize plastoglobule proteome and its dynamic responses to water-deficit.
HostingRepository	PRIDE
AnnounceDate	2025-10-17
AnnouncementXML	Submission_2025-10-16_20:39:35.877.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Peter Lundquist
SpeciesList	scientific name: Zea mays (Maize); NCBI TaxID: NEWT:4577;
ModificationList	phosphorylated residue; acetylated residue; monohydroxylated residue; iodoacetamide derivatized residue
Instrument	Q Exactive HF

Revision	Datetime	Status	ChangeLog Entry
0	2024-03-13 13:37:55	ID requested
⏵ 1	2025-10-16 20:39:36	announced

10.1093/JXB/ERAF453;

submitter keyword: water,plastoglobules, maize, thylakoid, stress, corn, drought

Peter K
contact affiliation	Biochemistry & Molecular Biology Department and Plant Resilience Institute, Michigan State University
contact email	pklundqu@msu.edu
lab head
Peter Lundquist
contact affiliation	Michigan State University
contact email	pklundqu@msu.edu
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD050599
     1. Label: PRIDE project
     2. Name: Maize plastoglobule and thylakoid proteomes during water deficit and recovery