UV-screening and springtime recovery of photosynthetic capacity in leaves of Vaccinium vitis-idaea above and below the snow pack
International audience Evergreen plants in boreal biomes undergo seasonal hardening and dehardening adjusting their photosynthetic capacity and photoprotection; acclimating to seasonal changes in temperature and irradiance. Leaf epidermal ultraviolet (UV)-screening by flavonols responds to solar rad...
Published in: | Plant Physiology and Biochemistry |
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Online Access: | https://hal.archives-ouvertes.fr/hal-02183530 https://doi.org/10.1016/j.plaphy.2018.09.003 |
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ftccsdartic:oai:HAL:hal-02183530v1 2023-05-15T15:12:55+02:00 UV-screening and springtime recovery of photosynthetic capacity in leaves of Vaccinium vitis-idaea above and below the snow pack Solanki, Twinkle Aphalo, Pedro Neimane, Santa Hartikainen, Saara Pieristè, Marta Shapiguzov, Alexey Porcar-Castell, Albert Atherton, Jon Heikkilä, Anu Robson, Thomas Matthew University of Helsinki University of Latvia (LU) Étude et compréhension de la biodiversité (ECODIV) Université de Rouen Normandie (UNIROUEN) Normandie Université (NU)-Normandie Université (NU) Multi-Scale Material Science for Energy and Environment ((MSC)2 UMI3466 CNRS-MIT) CNRS-MIT Department of Forest Sciences Helsinki Faculty of Agriculture and Forestry Helsinki University of Helsinki-University of Helsinki Finnish Meteorological Institute (FMI) Academy of Finland 304519 Finnish National Agency for Education (EDUFI fellowship program) Tiina and Antti Herlin Foundation 20180642 2019-01 https://hal.archives-ouvertes.fr/hal-02183530 https://doi.org/10.1016/j.plaphy.2018.09.003 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.plaphy.2018.09.003 info:eu-repo/semantics/altIdentifier/pmid/30219502 hal-02183530 https://hal.archives-ouvertes.fr/hal-02183530 doi:10.1016/j.plaphy.2018.09.003 PUBMED: 30219502 WOS: 000455692000005 http://creativecommons.org/licenses/by-nc-nd/ CC-BY-NC-ND ISSN: 0981-9428 Plant Physiology and Biochemistry https://hal.archives-ouvertes.fr/hal-02183530 Plant Physiology and Biochemistry, Elsevier, 2019, 134, pp.40-52. ⟨10.1016/j.plaphy.2018.09.003⟩ Anthocyanins Arctic browning Flavonoids Photoprotection Spectral quality Understorey spring dehardening [SDV.BV]Life Sciences [q-bio]/Vegetal Biology info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.1016/j.plaphy.2018.09.003 2021-11-07T01:47:11Z International audience Evergreen plants in boreal biomes undergo seasonal hardening and dehardening adjusting their photosynthetic capacity and photoprotection; acclimating to seasonal changes in temperature and irradiance. Leaf epidermal ultraviolet (UV)-screening by flavonols responds to solar radiation, perceived in part through increased ultraviolet-B (UV-B) radiation, and is a candidate trait to provide cross-photoprotection. At Hyytiälä Forestry Station, central Finland, we examined whether the accumulation of flavonols was higher in leaves of Vaccinium vitis-idaea L. growing above the snowpack compared with those below the snowpack. We found that leaves exposed to colder temperatures and higher solar radiation towards the top of hummocks suffered greater photoinhibition than those at the base of hummocks. Epidermal UV-screening was highest in upper-hummock leaves, particularly during winter when lower leaves were beneath the snowpack. There was also a negative relationship between indices of flavonols and anthocyanins across all leaves suggesting fine-tuning of flavonoid composition for screening vs. antioxidant activity in response to temperature and irradiance. However, the positive correlation between the maximum quantum yield of photosystem II photochemistry (Fv/Fm) and flavonol accumulation in upper hummock leaves during dehardening did not confer on them any greater cross-protection than would be expected from the general relationship of Fv/Fm with temperature and irradiance (throughout the hummocks). Irrespective of timing of snow-melt, photosynthesis fully recovered in all leaves, suggesting that V. vitis-idaea has the potential to exploit the continuing trend for longer growing seasons in central Finland without incurring significant impairment from reduced duration of snow cover. Article in Journal/Newspaper Arctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Plant Physiology and Biochemistry 134 40 52 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Anthocyanins Arctic browning Flavonoids Photoprotection Spectral quality Understorey spring dehardening [SDV.BV]Life Sciences [q-bio]/Vegetal Biology |
spellingShingle |
Anthocyanins Arctic browning Flavonoids Photoprotection Spectral quality Understorey spring dehardening [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Solanki, Twinkle Aphalo, Pedro Neimane, Santa Hartikainen, Saara Pieristè, Marta Shapiguzov, Alexey Porcar-Castell, Albert Atherton, Jon Heikkilä, Anu Robson, Thomas Matthew UV-screening and springtime recovery of photosynthetic capacity in leaves of Vaccinium vitis-idaea above and below the snow pack |
topic_facet |
Anthocyanins Arctic browning Flavonoids Photoprotection Spectral quality Understorey spring dehardening [SDV.BV]Life Sciences [q-bio]/Vegetal Biology |
description |
International audience Evergreen plants in boreal biomes undergo seasonal hardening and dehardening adjusting their photosynthetic capacity and photoprotection; acclimating to seasonal changes in temperature and irradiance. Leaf epidermal ultraviolet (UV)-screening by flavonols responds to solar radiation, perceived in part through increased ultraviolet-B (UV-B) radiation, and is a candidate trait to provide cross-photoprotection. At Hyytiälä Forestry Station, central Finland, we examined whether the accumulation of flavonols was higher in leaves of Vaccinium vitis-idaea L. growing above the snowpack compared with those below the snowpack. We found that leaves exposed to colder temperatures and higher solar radiation towards the top of hummocks suffered greater photoinhibition than those at the base of hummocks. Epidermal UV-screening was highest in upper-hummock leaves, particularly during winter when lower leaves were beneath the snowpack. There was also a negative relationship between indices of flavonols and anthocyanins across all leaves suggesting fine-tuning of flavonoid composition for screening vs. antioxidant activity in response to temperature and irradiance. However, the positive correlation between the maximum quantum yield of photosystem II photochemistry (Fv/Fm) and flavonol accumulation in upper hummock leaves during dehardening did not confer on them any greater cross-protection than would be expected from the general relationship of Fv/Fm with temperature and irradiance (throughout the hummocks). Irrespective of timing of snow-melt, photosynthesis fully recovered in all leaves, suggesting that V. vitis-idaea has the potential to exploit the continuing trend for longer growing seasons in central Finland without incurring significant impairment from reduced duration of snow cover. |
author2 |
University of Helsinki University of Latvia (LU) Étude et compréhension de la biodiversité (ECODIV) Université de Rouen Normandie (UNIROUEN) Normandie Université (NU)-Normandie Université (NU) Multi-Scale Material Science for Energy and Environment ((MSC)2 UMI3466 CNRS-MIT) CNRS-MIT Department of Forest Sciences Helsinki Faculty of Agriculture and Forestry Helsinki University of Helsinki-University of Helsinki Finnish Meteorological Institute (FMI) Academy of Finland 304519 Finnish National Agency for Education (EDUFI fellowship program) Tiina and Antti Herlin Foundation 20180642 |
format |
Article in Journal/Newspaper |
author |
Solanki, Twinkle Aphalo, Pedro Neimane, Santa Hartikainen, Saara Pieristè, Marta Shapiguzov, Alexey Porcar-Castell, Albert Atherton, Jon Heikkilä, Anu Robson, Thomas Matthew |
author_facet |
Solanki, Twinkle Aphalo, Pedro Neimane, Santa Hartikainen, Saara Pieristè, Marta Shapiguzov, Alexey Porcar-Castell, Albert Atherton, Jon Heikkilä, Anu Robson, Thomas Matthew |
author_sort |
Solanki, Twinkle |
title |
UV-screening and springtime recovery of photosynthetic capacity in leaves of Vaccinium vitis-idaea above and below the snow pack |
title_short |
UV-screening and springtime recovery of photosynthetic capacity in leaves of Vaccinium vitis-idaea above and below the snow pack |
title_full |
UV-screening and springtime recovery of photosynthetic capacity in leaves of Vaccinium vitis-idaea above and below the snow pack |
title_fullStr |
UV-screening and springtime recovery of photosynthetic capacity in leaves of Vaccinium vitis-idaea above and below the snow pack |
title_full_unstemmed |
UV-screening and springtime recovery of photosynthetic capacity in leaves of Vaccinium vitis-idaea above and below the snow pack |
title_sort |
uv-screening and springtime recovery of photosynthetic capacity in leaves of vaccinium vitis-idaea above and below the snow pack |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-02183530 https://doi.org/10.1016/j.plaphy.2018.09.003 |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Arctic Browning |
geographic_facet |
Arctic Browning |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 0981-9428 Plant Physiology and Biochemistry https://hal.archives-ouvertes.fr/hal-02183530 Plant Physiology and Biochemistry, Elsevier, 2019, 134, pp.40-52. ⟨10.1016/j.plaphy.2018.09.003⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.plaphy.2018.09.003 info:eu-repo/semantics/altIdentifier/pmid/30219502 hal-02183530 https://hal.archives-ouvertes.fr/hal-02183530 doi:10.1016/j.plaphy.2018.09.003 PUBMED: 30219502 WOS: 000455692000005 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.plaphy.2018.09.003 |
container_title |
Plant Physiology and Biochemistry |
container_volume |
134 |
container_start_page |
40 |
op_container_end_page |
52 |
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1766343546554548224 |