M
Michele Grieco
Researcher at University of Turku
Publications - 17
Citations - 1680
Michele Grieco is an academic researcher from University of Turku. The author has contributed to research in topics: Photosystem I & Thylakoid. The author has an hindex of 15, co-authored 17 publications receiving 1405 citations. Previous affiliations of Michele Grieco include University of Vienna & Leibniz Association.
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Journal ArticleDOI
PROTON GRADIENT REGULATION5 Is Essential for Proper Acclimation of Arabidopsis Photosystem I to Naturally and Artificially Fluctuating Light Conditions
Marjaana Suorsa,Sari Järvi,Michele Grieco,Markus Nurmi,Malgorzata Pietrzykowska,Marjaana Rantala,Saijaliisa Kangasjärvi,Virpi Paakkarinen,Mikko Tikkanen,Stefan Jansson,Eva-Mari Aro +10 more
TL;DR: It is shown that PROTON GRADIENT REGULATION5 (PGR5)–dependent regulation of electron transfer and proton motive force is crucial for protection of PSI against photodamage, which occurred particularly during the high light phases of fluctuating light cycles.
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Thylakoid protein phosphorylation in higher plant chloroplasts optimizes electron transfer under fluctuating light.
TL;DR: The physiological relevance of the STN7-dependent regulation is evidenced by severely stunted phenotypes of the stn 7 and stn7 stn8 mutants under strongly fluctuating light conditions.
Journal ArticleDOI
Steady-State Phosphorylation of Light-Harvesting Complex II Proteins Preserves Photosystem I under Fluctuating White Light
TL;DR: It is demonstrated that the Arabidopsis (Arabidopsis thaliana) stn7 (for state transition7) mutant, devoid of the STN7 kinase and LHCII phosphorylation, shows a growth penalty only under fluctuating white light due to a low amount of PSI.
Journal ArticleDOI
Regulation of the photosynthetic apparatus under fluctuating growth light.
TL;DR: A new hypothesis suggests that most of the regulation in the thylakoid membrane occurs in order to prevent oxidative damage of photosystem I, and the roles of light-harvesting II protein phosphorylation, thermal dissipation of excess energy and the control of electron transfer by cytochrome b6f are discussed.
Journal ArticleDOI
Photodamage of iron-sulphur clusters in photosystem I induces non-photochemical energy dissipation.
Arjun Tiwari,Fikret Mamedov,Michele Grieco,Marjaana Suorsa,Anjana Jajoo,Stenbjörn Styring,Mikko Tikkanen,Eva-Mari Aro +7 more
TL;DR: It is demonstrated that the iron–sulphur clusters of PSI are more sensitive to high light stress than previously anticipated, but PSI with damaged FeS clusters still functions as a non-photochemical photoprotective energy quencher (PSI-NPQ).