A comparative study on the leaf anatomical structure of Camellia oleifera in a low-hot valley area in Guizhou Province, China

The leaf serves as an important assimilation organ of plants, and the anatomical structure of leaves can reflect the adaptability of the plant to the environment to a certain extent. The current study aimed to cultivate superior local cultivars, and 35 healthy individual plants were selected from th...

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Veröffentlicht in:PloS one 2022-01, Vol.17 (1), p.e0262509-e0262509
Hauptverfasser: Hu, Yang, Yang, Lu, Gao, Chao, Liao, Desheng, Long, Li, Qiu, Jie, Wei, Hongli, Deng, Quanen, Zhou, Yunchao
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container_title PloS one
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Yang, Lu
Gao, Chao
Liao, Desheng
Long, Li
Qiu, Jie
Wei, Hongli
Deng, Quanen
Zhou, Yunchao
description The leaf serves as an important assimilation organ of plants, and the anatomical structure of leaves can reflect the adaptability of the plant to the environment to a certain extent. The current study aimed to cultivate superior local cultivars, and 35 healthy individual plants were selected from the Camellia oleifera germplasm resource nursery for a comparative study of the leaf structure. In July 2019, the leaves were collected from 35 selected healthy C. oleifera plants, and the leaf structure was observed by using the paraffin section method. Healthy individual plants were screened using variance analysis, correlation analysis and cluster analysis. The representative indices were selected according to the cluster membership, correlation indices and coefficient of variation (C/V) for a comprehensive evaluation of drought resistance via the membership function. There were extremely significant differences in 11 indices of leaf structure for these 35 healthy plants. C18 had the greatest leaf thickness, C7 the largest spongy tissue, and C38 the largest ratio of palisade tissue thickness to spongy tissue thickness (P/S). The clustering results of the healthy individual plants differed significantly. The membership function showed that the drought resistance of 35 C. oleifera plants was divided into five categories. C18 had very strong drought resistance, and C3, C7 and C40 had strong drought resistance. There were significant differences in terms of the upper epidermis, P/S ratio and spongy tissue among the C. oleifera plants. C18, C3, C7 and C40 exhibited satisfactory drought resistance. Although C39 and C26 had moderate drought resistance, their P/S ratios were high, which might be used to cultivate high-yield and drought-resistant C. oleifera varieties. The leaf P/S ratio of C. oleifera from low-hot valley areas was high. Among various leaf structures, spongy tissue, upper epidermis, P/S ratio and cuticle constitute the drought resistance evaluation indices for C. oleifera grown in low-hot valley areas.
doi_str_mv 10.1371/journal.pone.0262509
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The current study aimed to cultivate superior local cultivars, and 35 healthy individual plants were selected from the Camellia oleifera germplasm resource nursery for a comparative study of the leaf structure. In July 2019, the leaves were collected from 35 selected healthy C. oleifera plants, and the leaf structure was observed by using the paraffin section method. Healthy individual plants were screened using variance analysis, correlation analysis and cluster analysis. The representative indices were selected according to the cluster membership, correlation indices and coefficient of variation (C/V) for a comprehensive evaluation of drought resistance via the membership function. There were extremely significant differences in 11 indices of leaf structure for these 35 healthy plants. C18 had the greatest leaf thickness, C7 the largest spongy tissue, and C38 the largest ratio of palisade tissue thickness to spongy tissue thickness (P/S). The clustering results of the healthy individual plants differed significantly. The membership function showed that the drought resistance of 35 C. oleifera plants was divided into five categories. C18 had very strong drought resistance, and C3, C7 and C40 had strong drought resistance. There were significant differences in terms of the upper epidermis, P/S ratio and spongy tissue among the C. oleifera plants. C18, C3, C7 and C40 exhibited satisfactory drought resistance. Although C39 and C26 had moderate drought resistance, their P/S ratios were high, which might be used to cultivate high-yield and drought-resistant C. oleifera varieties. The leaf P/S ratio of C. oleifera from low-hot valley areas was high. 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Yang, Lu ; Gao, Chao ; Liao, Desheng ; Long, Li ; Qiu, Jie ; Wei, Hongli ; Deng, Quanen ; Zhou, Yunchao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c585t-ffe0bcbe1095e04d700dc07cc1545a5a40ce7def7c1f3734083a4e9458aa2c603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Adaptability</topic><topic>Biology and Life Sciences</topic><topic>Camellia</topic><topic>Camellia - anatomy &amp; histology</topic><topic>Camellia oleifera</topic><topic>China</topic><topic>Cluster analysis</topic><topic>Clustering</topic><topic>Coefficient of variation</topic><topic>Comparative analysis</topic><topic>Comparative studies</topic><topic>Correlation</topic><topic>Correlation analysis</topic><topic>Cultivars</topic><topic>Drought</topic><topic>Drought index</topic><topic>Drought resistance</topic><topic>Droughts</topic><topic>Earth Sciences</topic><topic>Ecology and Environmental Sciences</topic><topic>Environment</topic><topic>Epidermis</topic><topic>Foliar diagnosis</topic><topic>Germplasm</topic><topic>Leaves</topic><topic>Medicine and Health Sciences</topic><topic>Paraffin</topic><topic>Paraffins</topic><topic>Physical Sciences</topic><topic>Physiological aspects</topic><topic>Plant Leaves - anatomy &amp; 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The current study aimed to cultivate superior local cultivars, and 35 healthy individual plants were selected from the Camellia oleifera germplasm resource nursery for a comparative study of the leaf structure. In July 2019, the leaves were collected from 35 selected healthy C. oleifera plants, and the leaf structure was observed by using the paraffin section method. Healthy individual plants were screened using variance analysis, correlation analysis and cluster analysis. The representative indices were selected according to the cluster membership, correlation indices and coefficient of variation (C/V) for a comprehensive evaluation of drought resistance via the membership function. There were extremely significant differences in 11 indices of leaf structure for these 35 healthy plants. C18 had the greatest leaf thickness, C7 the largest spongy tissue, and C38 the largest ratio of palisade tissue thickness to spongy tissue thickness (P/S). The clustering results of the healthy individual plants differed significantly. The membership function showed that the drought resistance of 35 C. oleifera plants was divided into five categories. C18 had very strong drought resistance, and C3, C7 and C40 had strong drought resistance. There were significant differences in terms of the upper epidermis, P/S ratio and spongy tissue among the C. oleifera plants. C18, C3, C7 and C40 exhibited satisfactory drought resistance. Although C39 and C26 had moderate drought resistance, their P/S ratios were high, which might be used to cultivate high-yield and drought-resistant C. oleifera varieties. The leaf P/S ratio of C. oleifera from low-hot valley areas was high. Among various leaf structures, spongy tissue, upper epidermis, P/S ratio and cuticle constitute the drought resistance evaluation indices for C. oleifera grown in low-hot valley areas.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>35051236</pmid><doi>10.1371/journal.pone.0262509</doi><orcidid>https://orcid.org/0000-0002-0167-0685</orcidid><oa>free_for_read</oa></addata></record>
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subjects Adaptability
Biology and Life Sciences
Camellia
Camellia - anatomy & histology
Camellia oleifera
China
Cluster analysis
Clustering
Coefficient of variation
Comparative analysis
Comparative studies
Correlation
Correlation analysis
Cultivars
Drought
Drought index
Drought resistance
Droughts
Earth Sciences
Ecology and Environmental Sciences
Environment
Epidermis
Foliar diagnosis
Germplasm
Leaves
Medicine and Health Sciences
Paraffin
Paraffins
Physical Sciences
Physiological aspects
Plant Leaves - anatomy & histology
Plants
Seeds
Soil erosion
Stress, Physiological - physiology
Thickness
Tissues
Valleys
Variance analysis
Varieties
title A comparative study on the leaf anatomical structure of Camellia oleifera in a low-hot valley area in Guizhou Province, China
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