@article{bag_flavodiiron-mediated_2023,
	title = {Flavodiiron-mediated {O2} photoreduction at photosystem {I} acceptor-side provides photoprotection to conifer thylakoids in early spring},
	volume = {14},
	copyright = {2023 The Author(s)},
	issn = {2041-1723},
	url = {https://www.nature.com/articles/s41467-023-38938-z},
	doi = {10.1038/s41467-023-38938-z},
	abstract = {Green organisms evolve oxygen (O2) via photosynthesis and consume it by respiration. Generally, net O2 consumption only becomes dominant when photosynthesis is suppressed at night. Here, we show that green thylakoid membranes of Scots pine (Pinus sylvestris L) and Norway spruce (Picea abies) needles display strong O2 consumption even in the presence of light when extremely low temperatures coincide with high solar irradiation during early spring (ES). By employing different electron transport chain inhibitors, we show that this unusual light-induced O2 consumption occurs around photosystem (PS) I and correlates with higher abundance of flavodiiron (Flv) A protein in ES thylakoids. With P700 absorption changes, we demonstrate that electron scavenging from the acceptor-side of PSI via O2 photoreduction is a major alternative pathway in ES. This photoprotection mechanism in vascular plants indicates that conifers have developed an adaptative evolution trajectory for growing in harsh environments.},
	language = {en},
	number = {1},
	urldate = {2023-06-09},
	journal = {Nature Communications},
	author = {Bag, Pushan and Shutova, Tatyana and Shevela, Dmitry and Lihavainen, Jenna and Nanda, Sanchali and Ivanov, Alexander G. and Messinger, Johannes and Jansson, Stefan},
	month = jun,
	year = {2023},
	note = {Number: 1
Publisher: Nature Publishing Group},
	keywords = {Abiotic, Light responses, Photosystem I},
	pages = {3210},
}

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Here, we show that green thylakoid membranes of Scots pine (Pinus sylvestris L) and Norway spruce (Picea abies) needles display strong O2 consumption even in the presence of light when extremely low temperatures coincide with high solar irradiation during early spring (ES). By employing different electron transport chain inhibitors, we show that this unusual light-induced O2 consumption occurs around photosystem (PS) I and correlates with higher abundance of flavodiiron (Flv) A protein in ES thylakoids. With P700 absorption changes, we demonstrate that electron scavenging from the acceptor-side of PSI via O2 photoreduction is a major alternative pathway in ES. This photoprotection mechanism in vascular plants indicates that conifers have developed an adaptative evolution trajectory for growing in harsh environments.","language":"en","number":"1","urldate":"2023-06-09","journal":"Nature Communications","author":[{"propositions":[],"lastnames":["Bag"],"firstnames":["Pushan"],"suffixes":[]},{"propositions":[],"lastnames":["Shutova"],"firstnames":["Tatyana"],"suffixes":[]},{"propositions":[],"lastnames":["Shevela"],"firstnames":["Dmitry"],"suffixes":[]},{"propositions":[],"lastnames":["Lihavainen"],"firstnames":["Jenna"],"suffixes":[]},{"propositions":[],"lastnames":["Nanda"],"firstnames":["Sanchali"],"suffixes":[]},{"propositions":[],"lastnames":["Ivanov"],"firstnames":["Alexander","G."],"suffixes":[]},{"propositions":[],"lastnames":["Messinger"],"firstnames":["Johannes"],"suffixes":[]},{"propositions":[],"lastnames":["Jansson"],"firstnames":["Stefan"],"suffixes":[]}],"month":"June","year":"2023","note":"Number: 1 Publisher: Nature Publishing Group","keywords":"Abiotic, Light responses, Photosystem I","pages":"3210","bibtex":"@article{bag_flavodiiron-mediated_2023,\n\ttitle = {Flavodiiron-mediated {O2} photoreduction at photosystem {I} acceptor-side provides photoprotection to conifer thylakoids in early spring},\n\tvolume = {14},\n\tcopyright = {2023 The Author(s)},\n\tissn = {2041-1723},\n\turl = {https://www.nature.com/articles/s41467-023-38938-z},\n\tdoi = {10.1038/s41467-023-38938-z},\n\tabstract = {Green organisms evolve oxygen (O2) via photosynthesis and consume it by respiration. Generally, net O2 consumption only becomes dominant when photosynthesis is suppressed at night. Here, we show that green thylakoid membranes of Scots pine (Pinus sylvestris L) and Norway spruce (Picea abies) needles display strong O2 consumption even in the presence of light when extremely low temperatures coincide with high solar irradiation during early spring (ES). By employing different electron transport chain inhibitors, we show that this unusual light-induced O2 consumption occurs around photosystem (PS) I and correlates with higher abundance of flavodiiron (Flv) A protein in ES thylakoids. With P700 absorption changes, we demonstrate that electron scavenging from the acceptor-side of PSI via O2 photoreduction is a major alternative pathway in ES. 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G.","Messinger, J.","Jansson, S."],"key":"bag_flavodiiron-mediated_2023","id":"bag_flavodiiron-mediated_2023","bibbaseid":"bag-shutova-shevela-lihavainen-nanda-ivanov-messinger-jansson-flavodiironmediatedo2photoreductionatphotosystemiacceptorsideprovidesphotoprotectiontoconiferthylakoidsinearlyspring-2023","role":"author","urls":{"Paper":"https://www.nature.com/articles/s41467-023-38938-z"},"keyword":["Abiotic","Light responses","Photosystem I"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/upscpub","dataSources":["3zTPPmKj8BiTcpc6C","9cGcv2t8pRzC92kzs","W3CMg4R9pW5F2Kaqv"],"keywords":["abiotic","light responses","photosystem i"],"search_terms":["flavodiiron","mediated","photoreduction","photosystem","acceptor","side","provides","photoprotection","conifer","thylakoids","early","spring","bag","shutova","shevela","lihavainen","nanda","ivanov","messinger","jansson"],"title":"Flavodiiron-mediated O2 photoreduction at photosystem I acceptor-side provides photoprotection to conifer thylakoids in early spring","year":2023}