About: Specific thylakoid protein phosphorylations are prerequisites for overwintering of Norway spruce (Picea abies) photosynthesis

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About: Specific thylakoid protein phosphorylations are prerequisites for overwintering of Norway spruce (Picea abies) photosynthesis Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Specific thylakoid protein phosphorylations are prerequisites for overwintering of Norway spruce (Picea abies) photosynthesis
Creator	Aro, Eva-Mari Bag, Pushan Bajwa, Azfar Grebe, Steffen Jansson, Stefan Mancini, Ilaria Tikkanen, Mikko Trotta, Andrea
Source	Medline; PMC
abstract	Coping of evergreen conifers in boreal forests with freezing temperatures on bright winter days puts the photosynthetic machinery in great risk of oxidative damage. To survive harsh winter conditions, conifers have evolved a unique but poorly characterized photoprotection mechanism, a sustained form of nonphotochemical quenching (sustained NPQ). Here we focused on functional properties and underlying molecular mechanisms related to the development of sustained NPQ in Norway spruce (Picea abies). Data were collected during 4 consecutive years (2016 to 2019) from trees growing in sun and shade habitats. When day temperatures dropped below −4 °C, the specific N-terminally triply phosphorylated LHCB1 isoform (3p-LHCII) and phosphorylated PSBS (p-PSBS) could be detected in the thylakoid membrane. Development of sustained NPQ coincided with the highest level of 3p-LHCII and p-PSBS, occurring after prolonged coincidence of bright winter days and temperatures close to −10 °C. Artificial induction of both the sustained NPQ and recovery from naturally induced sustained NPQ provided information on differential dynamics and light-dependence of 3p-LHCII and p-PSBS accumulation as prerequisites for sustained NPQ. Data obtained collectively suggest three components related to sustained NPQ in spruce: 1) Freezing temperatures induce 3p-LHCII accumulation independently of light, which is suggested to initiate destacking of appressed thylakoid membranes due to increased electrostatic repulsion of adjacent membranes; 2) p-PSBS accumulation is both light- and temperature-dependent and closely linked to the initiation of sustained NPQ, which 3) in concert with PSII photoinhibition, is suggested to trigger sustained NPQ in spruce.
has issue date	2020-07-28(xsd:dateTime)
bibo:doi	10.1073/pnas.2004165117
bibo:pmid	32690715
has license	cc-by-nc-nd
sha1sum (hex)	2563076bf5c2efa23821a88d5604cf312757afd9
schema:url	https://doi.org/10.1073/pnas.2004165117
resource representing a document's title	Specific thylakoid protein phosphorylations are prerequisites for overwintering of Norway spruce (Picea abies) photosynthesis
has PubMed Central identifier	PMC7395503
has PubMed identifier	32690715
schema:publication	Proc Natl Acad Sci U S A
resource representing a document's body	covid:2563076bf5c2efa23821a88d5604cf312757afd9#body_text
is schema:about of	named entity 'SPECIFIC' named entity 'FOLLOWING' named entity 'TEXT' named entity 'PREREQUISITES' named entity 'S16' named entity 'photosynthesis' named entity 'Picea abies' named entity 'thylakoid' named entity 'text Figures' named entity 'phosphorylation' named entity 'HPLC' named entity 'formic acid' named entity 'spectra' named entity 'Fv/Fm' named entity 'urea' named entity 'protein' named entity 'Fv/Fm' named entity 'trypsin' named entity 'thylakoid' named entity 'acrylamide' named entity 'spectra' named entity 'N-term' named entity 'light curve' named entity 'higher-energy collisional dissociation' named entity 'P700' named entity '8:30' named entity 'vacuum' named entity 'Parainen' named entity 'isoform' named entity 'photons' named entity 'sorbitol' named entity 'm/z' named entity 'solvent' named entity 'chlorophyll fluorescence' named entity 'μmol' named entity 'm/z' named entity 'Thermo Fisher Scientific' named entity 'Prof.' named entity 'photons' named entity 'photons' named entity 'Thermo Fisher Scientific' named entity 'light curve' named entity 'spruce' named entity 'acetonitrile' named entity 'in-vivo' named entity 'trypsin' named entity 'New England Biolabs' named entity 'search engine' named entity 'SDS-PAGE' named entity 'µmol' named entity 'fluorescence' named entity 'Thermo Fisher' named entity 'protein' named entity 'beta strands' named entity 'fluorescence' named entity 'immunoblotting' named entity 'photosynthetic' named entity 'iodoacetamide' named entity 'PVDF' named entity 'sun' named entity 'ABC' named entity 'ABC' named entity 'fluorescence' named entity 'μmol' named entity 'KOH' named entity 'red arrows' named entity 'SPSS' named entity 'photons' named entity 'liquid nitrogen' named entity 'light curve' named entity 'immunoblotting' named entity 'Promega' named entity 'Fv/Fm' named entity 'red arrows'

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