Spatial variation of stomatal morphological traits in grassland plants of the Loess Plateau

The stomata control carbon and water vapor exchange between the leaves and atmosphere and may reflect plant adaptation to climate change to some extent. However, the spatial variation of stomatal traits on different sides of the leaves’ epidermis and their response to environmental changes remain un...

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Autores principales:	Jingguo Sun, Congcong Liu, Jihua Hou, Nianpeng He
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Stomata Stomatal ratio Trait Grassland Strategy Adaptation Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/d04cf13fe2e14fd0b14cdc98dd7698e8
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spelling	oai:doaj.org-article:d04cf13fe2e14fd0b14cdc98dd7698e82021-12-01T04:54:38ZSpatial variation of stomatal morphological traits in grassland plants of the Loess Plateau1470-160X10.1016/j.ecolind.2021.107857https://doaj.org/article/d04cf13fe2e14fd0b14cdc98dd7698e82021-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21005227https://doaj.org/toc/1470-160XThe stomata control carbon and water vapor exchange between the leaves and atmosphere and may reflect plant adaptation to climate change to some extent. However, the spatial variation of stomatal traits on different sides of the leaves’ epidermis and their response to environmental changes remain unclear. Here, we measured stomatal density (SD), stomatal size (SS), and stomatal relative area (SRA) on both leaf surfaces of 181 plant species across an environmental gradient on the Loess Plateau. We calculated the proportion of stomatal traits between different epidermis surfaces of the leaves (abaxial and adaxial) and measured the total SD (SDtot), total SS (SStot), and total SRA (SRAtot) of the leaves as a whole. The SDtot, SStot, and SRAtot showed a log-normal distribution, differing across grassland types and plant functional groups, with a range of 22.57–890.09 stomata mm−2, 84.61–2022.81 μm2, and 0.51–43.71%, respectively. The SDtot, SStot, and SRAtot differed significantly between different grassland types. Meadow plants had larger SDtot, desert plants had larger SStot, and typical grassland plants had relatively larger SRAtot. The abaxial SD and SRA of the woody plants were significantly higher than those of herbaceous plants, but no significant differences were observed at the adaxial surface or for the overall leaf. A higher SDtot was correlated with a larger stomatal density ratio (R.SD) and smaller stomatal size ratio (R.SS). The R.SD, abaxial SD, abaxial SS, and adaxial SS were significantly correlated with environmental factors, but no such correlations were observed for the adaxial SD. These findings highlight the strong associations of stomatal traits with plant functional group and climate at a regional scale, representing the climatic adaptation strategies of stomatal traits across natural grassland communities.Jingguo SunCongcong LiuJihua HouNianpeng HeElsevierarticleStomataStomatal ratioTraitGrasslandStrategyAdaptationEcologyQH540-549.5ENEcological Indicators, Vol 128, Iss , Pp 107857- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Stomata Stomatal ratio Trait Grassland Strategy Adaptation Ecology QH540-549.5
spellingShingle	Stomata Stomatal ratio Trait Grassland Strategy Adaptation Ecology QH540-549.5 Jingguo Sun Congcong Liu Jihua Hou Nianpeng He Spatial variation of stomatal morphological traits in grassland plants of the Loess Plateau
description	The stomata control carbon and water vapor exchange between the leaves and atmosphere and may reflect plant adaptation to climate change to some extent. However, the spatial variation of stomatal traits on different sides of the leaves’ epidermis and their response to environmental changes remain unclear. Here, we measured stomatal density (SD), stomatal size (SS), and stomatal relative area (SRA) on both leaf surfaces of 181 plant species across an environmental gradient on the Loess Plateau. We calculated the proportion of stomatal traits between different epidermis surfaces of the leaves (abaxial and adaxial) and measured the total SD (SDtot), total SS (SStot), and total SRA (SRAtot) of the leaves as a whole. The SDtot, SStot, and SRAtot showed a log-normal distribution, differing across grassland types and plant functional groups, with a range of 22.57–890.09 stomata mm−2, 84.61–2022.81 μm2, and 0.51–43.71%, respectively. The SDtot, SStot, and SRAtot differed significantly between different grassland types. Meadow plants had larger SDtot, desert plants had larger SStot, and typical grassland plants had relatively larger SRAtot. The abaxial SD and SRA of the woody plants were significantly higher than those of herbaceous plants, but no significant differences were observed at the adaxial surface or for the overall leaf. A higher SDtot was correlated with a larger stomatal density ratio (R.SD) and smaller stomatal size ratio (R.SS). The R.SD, abaxial SD, abaxial SS, and adaxial SS were significantly correlated with environmental factors, but no such correlations were observed for the adaxial SD. These findings highlight the strong associations of stomatal traits with plant functional group and climate at a regional scale, representing the climatic adaptation strategies of stomatal traits across natural grassland communities.
format	article
author	Jingguo Sun Congcong Liu Jihua Hou Nianpeng He
author_facet	Jingguo Sun Congcong Liu Jihua Hou Nianpeng He
author_sort	Jingguo Sun
title	Spatial variation of stomatal morphological traits in grassland plants of the Loess Plateau
title_short	Spatial variation of stomatal morphological traits in grassland plants of the Loess Plateau
title_full	Spatial variation of stomatal morphological traits in grassland plants of the Loess Plateau
title_fullStr	Spatial variation of stomatal morphological traits in grassland plants of the Loess Plateau
title_full_unstemmed	Spatial variation of stomatal morphological traits in grassland plants of the Loess Plateau
title_sort	spatial variation of stomatal morphological traits in grassland plants of the loess plateau
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/d04cf13fe2e14fd0b14cdc98dd7698e8
work_keys_str_mv	AT jingguosun spatialvariationofstomatalmorphologicaltraitsingrasslandplantsoftheloessplateau AT congcongliu spatialvariationofstomatalmorphologicaltraitsingrasslandplantsoftheloessplateau AT jihuahou spatialvariationofstomatalmorphologicaltraitsingrasslandplantsoftheloessplateau AT nianpenghe spatialvariationofstomatalmorphologicaltraitsingrasslandplantsoftheloessplateau
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Spatial variation of stomatal morphological traits in grassland plants of the Loess Plateau

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