Matches in SemOpenAlex for { <https://semopenalex.org/work/W2951663174> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W2951663174 abstract "Photosynthesis allows plants to store light energy in organic compounds. Plants have an efficient apparatus to harvest photons from sunlight and use the energy to split water and transport electrons to specific high-energy electron acceptors. A proper balance between light reactions and electron consumption is important to maintain fluent photosynthetic activity during environmental conditions that are constantly changing. At the same time, photosynthetic components are protected through several regulatory mechanisms. The avoidance of damage to photosystem I (PSI) is particularly important because its recovery occurs extremely slowly as compared to that of photosystem II (PSII). Studies on damage, photoinhibition and recovery of PSI are scarcer than those of PSII. In this thesis, the occurrence of photoinhibition of PSI and some of its consequences to the plant metabolism were investigated. Arabidopsis thaliana L. plants lacking the PROTON GRADIENT REGULATION 5 protein (pgr5 mutants) that were treated with excess light were used as a model system for controlled PSI-photoinhibition. This experimental model was validated, and the impact of PSI photoinhibition and recovery on photosynthetic electron transport, primary metabolism, reactive oxygen species (ROS) production and chloroplast retrograde signalling were thoroughly characterised. The results highlight that PSI photoinhibition induces impairment of CO2 fixation, starch accumulation, and dark respiration. The recovery of PSI function after photoinhibition proved to be dependent on light conditions, being especially deleterious for CO2 fixation under low irradiances, and supporting the idea that a pool of surplus PSI can be recruited to support photosynthesis under demanding conditions. High light-treated pgr5 mutants also displayed low occurrence of lipid oxidation associated with attenuated enzymatic oxylipin synthesis and consequent chloroplast regulation of nuclear gene expression. This model also showed that PSI photoinhibition prevents oxidative stress and accumulation of ROS, evidencing a role of PSI inactivation in avoiding over-reduction of downstream redox components." @default.
- W2951663174 created "2019-06-27" @default.
- W2951663174 creator A5051297699 @default.
- W2951663174 date "2019-06-28" @default.
- W2951663174 modified "2023-10-01" @default.
- W2951663174 title "Consequences of photoinhibition of photosystem I on photosynthetic electron transport and carbon metabolism" @default.
- W2951663174 hasPublicationYear "2019" @default.
- W2951663174 type Work @default.
- W2951663174 sameAs 2951663174 @default.
- W2951663174 citedByCount "0" @default.
- W2951663174 crossrefType "journal-article" @default.
- W2951663174 hasAuthorship W2951663174A5051297699 @default.
- W2951663174 hasConcept C104317684 @default.
- W2951663174 hasConcept C12554922 @default.
- W2951663174 hasConcept C154828652 @default.
- W2951663174 hasConcept C172256273 @default.
- W2951663174 hasConcept C183688256 @default.
- W2951663174 hasConcept C185592680 @default.
- W2951663174 hasConcept C199873434 @default.
- W2951663174 hasConcept C206865886 @default.
- W2951663174 hasConcept C24840226 @default.
- W2951663174 hasConcept C55493867 @default.
- W2951663174 hasConcept C59822182 @default.
- W2951663174 hasConcept C69305403 @default.
- W2951663174 hasConcept C80298142 @default.
- W2951663174 hasConcept C86803240 @default.
- W2951663174 hasConceptScore W2951663174C104317684 @default.
- W2951663174 hasConceptScore W2951663174C12554922 @default.
- W2951663174 hasConceptScore W2951663174C154828652 @default.
- W2951663174 hasConceptScore W2951663174C172256273 @default.
- W2951663174 hasConceptScore W2951663174C183688256 @default.
- W2951663174 hasConceptScore W2951663174C185592680 @default.
- W2951663174 hasConceptScore W2951663174C199873434 @default.
- W2951663174 hasConceptScore W2951663174C206865886 @default.
- W2951663174 hasConceptScore W2951663174C24840226 @default.
- W2951663174 hasConceptScore W2951663174C55493867 @default.
- W2951663174 hasConceptScore W2951663174C59822182 @default.
- W2951663174 hasConceptScore W2951663174C69305403 @default.
- W2951663174 hasConceptScore W2951663174C80298142 @default.
- W2951663174 hasConceptScore W2951663174C86803240 @default.
- W2951663174 hasLocation W29516631741 @default.
- W2951663174 hasOpenAccess W2951663174 @default.
- W2951663174 hasPrimaryLocation W29516631741 @default.
- W2951663174 hasRelatedWork W1138528466 @default.
- W2951663174 hasRelatedWork W1558915587 @default.
- W2951663174 hasRelatedWork W1824691109 @default.
- W2951663174 hasRelatedWork W2000012213 @default.
- W2951663174 hasRelatedWork W2002332082 @default.
- W2951663174 hasRelatedWork W2008313499 @default.
- W2951663174 hasRelatedWork W2031127830 @default.
- W2951663174 hasRelatedWork W2035896978 @default.
- W2951663174 hasRelatedWork W2035947281 @default.
- W2951663174 hasRelatedWork W2065603751 @default.
- W2951663174 hasRelatedWork W2076787122 @default.
- W2951663174 hasRelatedWork W2145927163 @default.
- W2951663174 hasRelatedWork W269709038 @default.
- W2951663174 hasRelatedWork W2749786467 @default.
- W2951663174 hasRelatedWork W2778020607 @default.
- W2951663174 hasRelatedWork W2809383070 @default.
- W2951663174 hasRelatedWork W2902974503 @default.
- W2951663174 hasRelatedWork W3005323354 @default.
- W2951663174 hasRelatedWork W3010263730 @default.
- W2951663174 hasRelatedWork W754615629 @default.
- W2951663174 isParatext "false" @default.
- W2951663174 isRetracted "false" @default.
- W2951663174 magId "2951663174" @default.
- W2951663174 workType "article" @default.