(Table 1) Chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern Sweden, supplement to: Arroniz-Crespo, Maria; Gwynn-Jones, Dylan; Callaghan, Terry V; Núñez-Olivera, E; Martínez-Abaigar, J; Horton, P; Phoenix, Gareth K (2011): Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany, 108(3), 557-565
Background and Aims: Anthropogenic depletion of stratospheric ozone in Arctic latitudes has resulted in an increase of ultraviolet-B radiation (UV-B) reaching the biosphere. UV-B exposure is known to reduce aboveground biomass and plant height, to increase DNA damage and cause accumulation of UV-abs...
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Format: | Dataset |
Language: | English |
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PANGAEA - Data Publisher for Earth & Environmental Science
2011
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Online Access: | https://dx.doi.org/10.1594/pangaea.807081 https://doi.pangaea.de/10.1594/PANGAEA.807081 |
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ftdatacite:10.1594/pangaea.807081 |
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openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Description Species Type Treatment Chlorophyll total, areal concentration Chlorophyll total, standard deviation Ratio Standard deviation Neoxanthin Neoxanthin, standard deviation Lutein Lutein, standard deviation beta-Carotene, beta,beta-Carotene beta-Carotene, beta,beta-Carotene standard deviation Violaxanthin Violaxanthin, standard deviation Antheraxanthin Antheraxanthin, standard deviation Zeaxanthin Zeaxanthin, standard deviation Sum Percentage Spectrophotometry High Performance Liquid Chromatography HPLC International Polar Year 2007-2008 IPY |
spellingShingle |
Description Species Type Treatment Chlorophyll total, areal concentration Chlorophyll total, standard deviation Ratio Standard deviation Neoxanthin Neoxanthin, standard deviation Lutein Lutein, standard deviation beta-Carotene, beta,beta-Carotene beta-Carotene, beta,beta-Carotene standard deviation Violaxanthin Violaxanthin, standard deviation Antheraxanthin Antheraxanthin, standard deviation Zeaxanthin Zeaxanthin, standard deviation Sum Percentage Spectrophotometry High Performance Liquid Chromatography HPLC International Polar Year 2007-2008 IPY Arroniz-Crespo, Maria Gwynn-Jones, Dylan Callaghan, Terry V Núñez-Olivera, E Martínez-Abaigar, J Horton, P Phoenix, Gareth K (Table 1) Chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern Sweden, supplement to: Arroniz-Crespo, Maria; Gwynn-Jones, Dylan; Callaghan, Terry V; Núñez-Olivera, E; Martínez-Abaigar, J; Horton, P; Phoenix, Gareth K (2011): Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany, 108(3), 557-565 |
topic_facet |
Description Species Type Treatment Chlorophyll total, areal concentration Chlorophyll total, standard deviation Ratio Standard deviation Neoxanthin Neoxanthin, standard deviation Lutein Lutein, standard deviation beta-Carotene, beta,beta-Carotene beta-Carotene, beta,beta-Carotene standard deviation Violaxanthin Violaxanthin, standard deviation Antheraxanthin Antheraxanthin, standard deviation Zeaxanthin Zeaxanthin, standard deviation Sum Percentage Spectrophotometry High Performance Liquid Chromatography HPLC International Polar Year 2007-2008 IPY |
description |
Background and Aims: Anthropogenic depletion of stratospheric ozone in Arctic latitudes has resulted in an increase of ultraviolet-B radiation (UV-B) reaching the biosphere. UV-B exposure is known to reduce aboveground biomass and plant height, to increase DNA damage and cause accumulation of UV-absorbing compounds in polar plants. However, many studies on Arctic mosses tended to be inconclusive. The importance of different water availability in influencing UV-B impacts on lower plants in the Arctic has been poorly explored and might partially explain the observed wide variation of responses, given the importance of water in controlling bryophyte physiology. This study aimed to assess the long-term responses of three common sub-Arctic bryophytes to enhanced UV-B radiation (+UV-B) and to elucidate the influence of water supply on those responses.Results: Responses were species specific: H. splendens responded most to +UV-B, with reduction in both annual growth (-22%) and sporophyte production (-44%), together with increased b-carotene, violaxanthin, total chlorophyll and NPQ, and decreased zeaxanthin and de-epoxidation of the xanthophyll cycle pool (DES). Barbilophozia lycopodioides responded less to +UV-B, showing increased b-carotene and sclerophylly and decreased UV-absorbing compounds. Polytrichum commune only showed small morphogenetic changes. No effect of UV-B on bryophyte cover was observed. Water availability had profound effects on bryophyte ecophysiology, and plants showed, in general, lower growth and ETR, together with a higher photoprotection in the drier site. Water availability also influenced bryophyte responses to +UV-B and, in particular, responses were less detectable in the drier site.Conclusions: Impacts of UV-B exposure on Arctic bryophytes were significant, in contrast to modest or absent UV-B effects measured in previous studies. The impacts were more easily detectable in species with high plasticity such as H. splendens and less obvious, or more subtle, under drier conditions. Species biology and water supply greatly influences the impact of UV-B on at least some Arctic bryophytes and could contribute to the wide variation of responses observed previously. : Sample amount (n) = 4 for all. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 |
format |
Dataset |
author |
Arroniz-Crespo, Maria Gwynn-Jones, Dylan Callaghan, Terry V Núñez-Olivera, E Martínez-Abaigar, J Horton, P Phoenix, Gareth K |
author_facet |
Arroniz-Crespo, Maria Gwynn-Jones, Dylan Callaghan, Terry V Núñez-Olivera, E Martínez-Abaigar, J Horton, P Phoenix, Gareth K |
author_sort |
Arroniz-Crespo, Maria |
title |
(Table 1) Chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern Sweden, supplement to: Arroniz-Crespo, Maria; Gwynn-Jones, Dylan; Callaghan, Terry V; Núñez-Olivera, E; Martínez-Abaigar, J; Horton, P; Phoenix, Gareth K (2011): Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany, 108(3), 557-565 |
title_short |
(Table 1) Chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern Sweden, supplement to: Arroniz-Crespo, Maria; Gwynn-Jones, Dylan; Callaghan, Terry V; Núñez-Olivera, E; Martínez-Abaigar, J; Horton, P; Phoenix, Gareth K (2011): Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany, 108(3), 557-565 |
title_full |
(Table 1) Chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern Sweden, supplement to: Arroniz-Crespo, Maria; Gwynn-Jones, Dylan; Callaghan, Terry V; Núñez-Olivera, E; Martínez-Abaigar, J; Horton, P; Phoenix, Gareth K (2011): Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany, 108(3), 557-565 |
title_fullStr |
(Table 1) Chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern Sweden, supplement to: Arroniz-Crespo, Maria; Gwynn-Jones, Dylan; Callaghan, Terry V; Núñez-Olivera, E; Martínez-Abaigar, J; Horton, P; Phoenix, Gareth K (2011): Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany, 108(3), 557-565 |
title_full_unstemmed |
(Table 1) Chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern Sweden, supplement to: Arroniz-Crespo, Maria; Gwynn-Jones, Dylan; Callaghan, Terry V; Núñez-Olivera, E; Martínez-Abaigar, J; Horton, P; Phoenix, Gareth K (2011): Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany, 108(3), 557-565 |
title_sort |
(table 1) chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern sweden, supplement to: arroniz-crespo, maria; gwynn-jones, dylan; callaghan, terry v; núñez-olivera, e; martínez-abaigar, j; horton, p; phoenix, gareth k (2011): impacts of long-term enhanced uv-b radiation on bryophytes in two sub-arctic heathland sites of contrasting water availability. annals of botany, 108(3), 557-565 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2011 |
url |
https://dx.doi.org/10.1594/pangaea.807081 https://doi.pangaea.de/10.1594/PANGAEA.807081 |
long_lat |
ENVELOPE(-62.183,-62.183,-64.650,-64.650) ENVELOPE(-64.250,-64.250,-65.550,-65.550) |
geographic |
Arctic Martínez Núñez |
geographic_facet |
Arctic Martínez Núñez |
genre |
Arctic International Polar Year IPY Northern Sweden |
genre_facet |
Arctic International Polar Year IPY Northern Sweden |
op_relation |
https://dx.doi.org/10.1093/aob/mcr178 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.807081 https://doi.org/10.1093/aob/mcr178 |
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1766322026776100864 |
spelling |
ftdatacite:10.1594/pangaea.807081 2023-05-15T14:50:58+02:00 (Table 1) Chlorophyll concentration and pigment composition of carotenoids in three heathland bryophytes, northern Sweden, supplement to: Arroniz-Crespo, Maria; Gwynn-Jones, Dylan; Callaghan, Terry V; Núñez-Olivera, E; Martínez-Abaigar, J; Horton, P; Phoenix, Gareth K (2011): Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany, 108(3), 557-565 Arroniz-Crespo, Maria Gwynn-Jones, Dylan Callaghan, Terry V Núñez-Olivera, E Martínez-Abaigar, J Horton, P Phoenix, Gareth K 2011 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.807081 https://doi.pangaea.de/10.1594/PANGAEA.807081 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1093/aob/mcr178 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Description Species Type Treatment Chlorophyll total, areal concentration Chlorophyll total, standard deviation Ratio Standard deviation Neoxanthin Neoxanthin, standard deviation Lutein Lutein, standard deviation beta-Carotene, beta,beta-Carotene beta-Carotene, beta,beta-Carotene standard deviation Violaxanthin Violaxanthin, standard deviation Antheraxanthin Antheraxanthin, standard deviation Zeaxanthin Zeaxanthin, standard deviation Sum Percentage Spectrophotometry High Performance Liquid Chromatography HPLC International Polar Year 2007-2008 IPY Supplementary Dataset dataset Dataset 2011 ftdatacite https://doi.org/10.1594/pangaea.807081 https://doi.org/10.1093/aob/mcr178 2021-11-05T12:55:41Z Background and Aims: Anthropogenic depletion of stratospheric ozone in Arctic latitudes has resulted in an increase of ultraviolet-B radiation (UV-B) reaching the biosphere. UV-B exposure is known to reduce aboveground biomass and plant height, to increase DNA damage and cause accumulation of UV-absorbing compounds in polar plants. However, many studies on Arctic mosses tended to be inconclusive. The importance of different water availability in influencing UV-B impacts on lower plants in the Arctic has been poorly explored and might partially explain the observed wide variation of responses, given the importance of water in controlling bryophyte physiology. This study aimed to assess the long-term responses of three common sub-Arctic bryophytes to enhanced UV-B radiation (+UV-B) and to elucidate the influence of water supply on those responses.Results: Responses were species specific: H. splendens responded most to +UV-B, with reduction in both annual growth (-22%) and sporophyte production (-44%), together with increased b-carotene, violaxanthin, total chlorophyll and NPQ, and decreased zeaxanthin and de-epoxidation of the xanthophyll cycle pool (DES). Barbilophozia lycopodioides responded less to +UV-B, showing increased b-carotene and sclerophylly and decreased UV-absorbing compounds. Polytrichum commune only showed small morphogenetic changes. No effect of UV-B on bryophyte cover was observed. Water availability had profound effects on bryophyte ecophysiology, and plants showed, in general, lower growth and ETR, together with a higher photoprotection in the drier site. Water availability also influenced bryophyte responses to +UV-B and, in particular, responses were less detectable in the drier site.Conclusions: Impacts of UV-B exposure on Arctic bryophytes were significant, in contrast to modest or absent UV-B effects measured in previous studies. The impacts were more easily detectable in species with high plasticity such as H. splendens and less obvious, or more subtle, under drier conditions. Species biology and water supply greatly influences the impact of UV-B on at least some Arctic bryophytes and could contribute to the wide variation of responses observed previously. : Sample amount (n) = 4 for all. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 Dataset Arctic International Polar Year IPY Northern Sweden DataCite Metadata Store (German National Library of Science and Technology) Arctic Martínez ENVELOPE(-62.183,-62.183,-64.650,-64.650) Núñez ENVELOPE(-64.250,-64.250,-65.550,-65.550) |