CaoJiaLiEtAl2012

Référence

Cao, X., Jia, J.B., Li, H., Li, M.C., Luo, J., Liang, Z.S., Liu, T.X., Liu, W.G., Peng, C., Luo, Z.B. (2012) Photosynthesis, water use efficiency and stable carbon isotope composition are associated with anatomical properties of leaf and xylem in six poplar species. Plant Biology, 14(4):612-620. (Scopus )

Résumé

Although fast-growing Populus species consume a large amount of water for biomass production, there are considerable variations in water use efficiency (WUE) across different poplar species. To compare differences in growth, WUE and anatomical properties of leaf and xylem and to examine the relationship between photosynthesis/WUE and anatomical properties of leaf and xylem, cuttings of six poplar species were grown in a botanical garden. The growth performance, photosynthesis, intrinsic WUE (WUE i), stable carbon isotope composition (δ 13C) and anatomical properties of leaf and xylem were analysed in these poplar plants. Significant differences were found in growth, photosynthesis, WUE i and anatomical properties among the examined species. Populus cathayana was the clone with the fastest growth and the lowest WUE i/δ 13C, whereas P.×euramericana had a considerable growth increment and the highest WUE i/δ 13C. Among the analysed poplar species, the highest total stomatal density in P. cathayana was correlated with its highest stomatal conductance (g s) and lowest WUE i/δ 13C. Moreover, significant correlations were observed between WUE i and abaxial stomatal density and stem vessel lumen area. These data suggest that photosynthesis, WUE i and δ 13C are associated with leaf and xylem anatomy and there are tradeoffs between growth and WUE i. It is anticipated that some poplar species, e.g. P.×euramericana, are better candidates for water-limited regions and others, e.g. P. cathayana, may be better for water-abundant areas. © 2011 German Botanical Society and The Royal Botanical Society of the Netherlands.

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@ARTICLE { CaoJiaLiEtAl2012,
    AUTHOR = { Cao, X. and Jia, J.B. and Li, H. and Li, M.C. and Luo, J. and Liang, Z.S. and Liu, T.X. and Liu, W.G. and Peng, C. and Luo, Z.B. },
    TITLE = { Photosynthesis, water use efficiency and stable carbon isotope composition are associated with anatomical properties of leaf and xylem in six poplar species },
    JOURNAL = { Plant Biology },
    YEAR = { 2012 },
    VOLUME = { 14 },
    PAGES = { 612-620 },
    NUMBER = { 4 },
    ABSTRACT = { Although fast-growing Populus species consume a large amount of water for biomass production, there are considerable variations in water use efficiency (WUE) across different poplar species. To compare differences in growth, WUE and anatomical properties of leaf and xylem and to examine the relationship between photosynthesis/WUE and anatomical properties of leaf and xylem, cuttings of six poplar species were grown in a botanical garden. The growth performance, photosynthesis, intrinsic WUE (WUE i), stable carbon isotope composition (δ 13C) and anatomical properties of leaf and xylem were analysed in these poplar plants. Significant differences were found in growth, photosynthesis, WUE i and anatomical properties among the examined species. Populus cathayana was the clone with the fastest growth and the lowest WUE i/δ 13C, whereas P.×euramericana had a considerable growth increment and the highest WUE i/δ 13C. Among the analysed poplar species, the highest total stomatal density in P. cathayana was correlated with its highest stomatal conductance (g s) and lowest WUE i/δ 13C. Moreover, significant correlations were observed between WUE i and abaxial stomatal density and stem vessel lumen area. These data suggest that photosynthesis, WUE i and δ 13C are associated with leaf and xylem anatomy and there are tradeoffs between growth and WUE i. It is anticipated that some poplar species, e.g. P.×euramericana, are better candidates for water-limited regions and others, e.g. P. cathayana, may be better for water-abundant areas. © 2011 German Botanical Society and The Royal Botanical Society of the Netherlands. },
    COMMENT = { Cited By (since 1996): 1 Export Date: 9 November 2012 Source: Scopus CODEN: PBIOF doi: 10.1111/j.1438-8677.2011.00531.x },
    ISSN = { 14358603 (ISSN) },
    KEYWORDS = { Gas exchange, Intrinsic water use efficiency, Leaf and xylem anatomy, Populus, carbon, water, anatomy, carbon isotope, clone, deciduous tree, gas exchange, growth rate, isotopic composition, leaf, photosynthesis, stable isotope, stomatal conductance, water availability, water use efficiency, xylem, article, comparative study, growth, development and aging, histology, photosynthesis, physiology, plant leaf, Populus, xylem, Carbon, Carbon Isotopes, Photosynthesis, Plant Leaves, Populus, Water, Xylem, Populus, Populus cathayana },
    OWNER = { Luc },
    TIMESTAMP = { 2012.11.09 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84860570898&partnerID=40&md5=b510f15642f846e00e09eb3315e5a22d },
}

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