Leaf Anatomy, Morphology and Photosynthesis of Three Tundra Shrubs after 7-Year Experimental Warming on Changbai Mountain
Tundra is one of the most sensitive biomes to climate warming. Understanding plant eco-physiological responses to warming is critical because these traits can give feedback on the effects of climate-warming on tundra ecosystem. We used open-top chambers following the criteria of the International Tu...
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ftmdpi:oai:mdpi.com:/2223-7747/8/8/271/ 2023-08-20T04:06:11+02:00 Leaf Anatomy, Morphology and Photosynthesis of Three Tundra Shrubs after 7-Year Experimental Warming on Changbai Mountain Yumei Zhou Jifeng Deng Zhijuan Tai Lifen Jiang Jianqiu Han Gelei Meng Mai-He Li agris 2019-08-07 application/pdf https://doi.org/10.3390/plants8080271 EN eng Multidisciplinary Digital Publishing Institute Plant Ecology https://dx.doi.org/10.3390/plants8080271 https://creativecommons.org/licenses/by/4.0/ Plants; Volume 8; Issue 8; Pages: 271 anatomical traits gas exchange leaf size open-top chamber warming Text 2019 ftmdpi https://doi.org/10.3390/plants8080271 2023-07-31T22:30:02Z Tundra is one of the most sensitive biomes to climate warming. Understanding plant eco-physiological responses to warming is critical because these traits can give feedback on the effects of climate-warming on tundra ecosystem. We used open-top chambers following the criteria of the International Tundra Experiment to passively warm air and soil temperatures year round in alpine tundra. Leaf size, photosynthesis and anatomy of three dominant species were investigated during the growing seasons after 7 years of continuous warming. Warming increased the maximal light-saturated photosynthetic rate (Pmax) by 43.6% for Dryas. octopetala var. asiatica and by 26.7% for Rhododendron confertissimum across the whole growing season, while warming did not significantly affect the Pmax of V. uliginosum. The leaf size of Dr. octopetala var. asiatica and Rh. confertissimum was increased by warming. No marked effects of warming on anatomical traits of Dr. octopetala var. asiatica were observed. Warming decreased the leaf thickness of Rh. confertissimum and Vaccinium uliginosum. This study highlights the species-specific responses to climate warming. Our results imply that Dr. octopetala var. asiatica could be more dominant because it, mainly in terms of leaf photosynthetic capacity and size, seems to have advantages over the other two species in a warming world. Text Dryas octopetala Tundra MDPI Open Access Publishing Plants 8 8 271 |
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MDPI Open Access Publishing |
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English |
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anatomical traits gas exchange leaf size open-top chamber warming |
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anatomical traits gas exchange leaf size open-top chamber warming Yumei Zhou Jifeng Deng Zhijuan Tai Lifen Jiang Jianqiu Han Gelei Meng Mai-He Li Leaf Anatomy, Morphology and Photosynthesis of Three Tundra Shrubs after 7-Year Experimental Warming on Changbai Mountain |
topic_facet |
anatomical traits gas exchange leaf size open-top chamber warming |
description |
Tundra is one of the most sensitive biomes to climate warming. Understanding plant eco-physiological responses to warming is critical because these traits can give feedback on the effects of climate-warming on tundra ecosystem. We used open-top chambers following the criteria of the International Tundra Experiment to passively warm air and soil temperatures year round in alpine tundra. Leaf size, photosynthesis and anatomy of three dominant species were investigated during the growing seasons after 7 years of continuous warming. Warming increased the maximal light-saturated photosynthetic rate (Pmax) by 43.6% for Dryas. octopetala var. asiatica and by 26.7% for Rhododendron confertissimum across the whole growing season, while warming did not significantly affect the Pmax of V. uliginosum. The leaf size of Dr. octopetala var. asiatica and Rh. confertissimum was increased by warming. No marked effects of warming on anatomical traits of Dr. octopetala var. asiatica were observed. Warming decreased the leaf thickness of Rh. confertissimum and Vaccinium uliginosum. This study highlights the species-specific responses to climate warming. Our results imply that Dr. octopetala var. asiatica could be more dominant because it, mainly in terms of leaf photosynthetic capacity and size, seems to have advantages over the other two species in a warming world. |
format |
Text |
author |
Yumei Zhou Jifeng Deng Zhijuan Tai Lifen Jiang Jianqiu Han Gelei Meng Mai-He Li |
author_facet |
Yumei Zhou Jifeng Deng Zhijuan Tai Lifen Jiang Jianqiu Han Gelei Meng Mai-He Li |
author_sort |
Yumei Zhou |
title |
Leaf Anatomy, Morphology and Photosynthesis of Three Tundra Shrubs after 7-Year Experimental Warming on Changbai Mountain |
title_short |
Leaf Anatomy, Morphology and Photosynthesis of Three Tundra Shrubs after 7-Year Experimental Warming on Changbai Mountain |
title_full |
Leaf Anatomy, Morphology and Photosynthesis of Three Tundra Shrubs after 7-Year Experimental Warming on Changbai Mountain |
title_fullStr |
Leaf Anatomy, Morphology and Photosynthesis of Three Tundra Shrubs after 7-Year Experimental Warming on Changbai Mountain |
title_full_unstemmed |
Leaf Anatomy, Morphology and Photosynthesis of Three Tundra Shrubs after 7-Year Experimental Warming on Changbai Mountain |
title_sort |
leaf anatomy, morphology and photosynthesis of three tundra shrubs after 7-year experimental warming on changbai mountain |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/plants8080271 |
op_coverage |
agris |
genre |
Dryas octopetala Tundra |
genre_facet |
Dryas octopetala Tundra |
op_source |
Plants; Volume 8; Issue 8; Pages: 271 |
op_relation |
Plant Ecology https://dx.doi.org/10.3390/plants8080271 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/plants8080271 |
container_title |
Plants |
container_volume |
8 |
container_issue |
8 |
container_start_page |
271 |
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1774717119177424896 |