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Differences in the Functional Traits of Populus pruinosa Leaves in Different Developmental Stages

Populus pruinosa Schrenk has the biological characteristics of heteromorphic leaves and is a pioneer species for wind prevention and sand fixation. The functions of heteromorphic leaves at different developmental stages and canopy heights of P. pruinosa are unclear. To clarify how developmental stag...

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Autores principales: Zhai, Juntuan, Zhang, Xiao, Li, Zhijun, Han, Xiaoli, Zhang, Shanhe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10304746/
https://www.ncbi.nlm.nih.gov/pubmed/37375887
http://dx.doi.org/10.3390/plants12122262
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author Zhai, Juntuan
Zhang, Xiao
Li, Zhijun
Han, Xiaoli
Zhang, Shanhe
author_facet Zhai, Juntuan
Zhang, Xiao
Li, Zhijun
Han, Xiaoli
Zhang, Shanhe
author_sort Zhai, Juntuan
collection PubMed
description Populus pruinosa Schrenk has the biological characteristics of heteromorphic leaves and is a pioneer species for wind prevention and sand fixation. The functions of heteromorphic leaves at different developmental stages and canopy heights of P. pruinosa are unclear. To clarify how developmental stages and canopy height affect the functional characteristics of leaves, this study evaluated the morphological anatomical structures and the physiological indicators of leaves at 2, 4, 6, 8, 10, and 12 m. The relationships of functional traits to the developmental stages and canopy heights of leaves were also analyzed. The results showed that blade length (BL), blade width (BW), leaf area (LA), leaf dry weight (LDW), leaf thickness (LT), palisade tissue thickness (PT), net photosynthetic rate (Pn), stomatal conductance (Gs), proline (Pro), and malondialdehyde (MDA) content increased with progressing developmental stages. BL, BW, LA, leaf dry weight, LT, PT, Pn, Gs, Pro, and the contents of MDA, indoleacetic acid, and zeatin riboside had significant positive correlations with canopy heights of leaves and their developmental stages. The morphological structures and physiological characteristics of P. pruinosa leaves showed more evident xeric structural characteristics and higher photosynthetic capacity with increasing canopy height and progressive developmental stages. Resource utilization efficiency and the defense ability against environmental stresses were improved through mutual regulation of each functional trait.
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spelling pubmed-103047462023-06-29 Differences in the Functional Traits of Populus pruinosa Leaves in Different Developmental Stages Zhai, Juntuan Zhang, Xiao Li, Zhijun Han, Xiaoli Zhang, Shanhe Plants (Basel) Article Populus pruinosa Schrenk has the biological characteristics of heteromorphic leaves and is a pioneer species for wind prevention and sand fixation. The functions of heteromorphic leaves at different developmental stages and canopy heights of P. pruinosa are unclear. To clarify how developmental stages and canopy height affect the functional characteristics of leaves, this study evaluated the morphological anatomical structures and the physiological indicators of leaves at 2, 4, 6, 8, 10, and 12 m. The relationships of functional traits to the developmental stages and canopy heights of leaves were also analyzed. The results showed that blade length (BL), blade width (BW), leaf area (LA), leaf dry weight (LDW), leaf thickness (LT), palisade tissue thickness (PT), net photosynthetic rate (Pn), stomatal conductance (Gs), proline (Pro), and malondialdehyde (MDA) content increased with progressing developmental stages. BL, BW, LA, leaf dry weight, LT, PT, Pn, Gs, Pro, and the contents of MDA, indoleacetic acid, and zeatin riboside had significant positive correlations with canopy heights of leaves and their developmental stages. The morphological structures and physiological characteristics of P. pruinosa leaves showed more evident xeric structural characteristics and higher photosynthetic capacity with increasing canopy height and progressive developmental stages. Resource utilization efficiency and the defense ability against environmental stresses were improved through mutual regulation of each functional trait. MDPI 2023-06-09 /pmc/articles/PMC10304746/ /pubmed/37375887 http://dx.doi.org/10.3390/plants12122262 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhai, Juntuan
Zhang, Xiao
Li, Zhijun
Han, Xiaoli
Zhang, Shanhe
Differences in the Functional Traits of Populus pruinosa Leaves in Different Developmental Stages
title Differences in the Functional Traits of Populus pruinosa Leaves in Different Developmental Stages
title_full Differences in the Functional Traits of Populus pruinosa Leaves in Different Developmental Stages
title_fullStr Differences in the Functional Traits of Populus pruinosa Leaves in Different Developmental Stages
title_full_unstemmed Differences in the Functional Traits of Populus pruinosa Leaves in Different Developmental Stages
title_short Differences in the Functional Traits of Populus pruinosa Leaves in Different Developmental Stages
title_sort differences in the functional traits of populus pruinosa leaves in different developmental stages
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10304746/
https://www.ncbi.nlm.nih.gov/pubmed/37375887
http://dx.doi.org/10.3390/plants12122262
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