Full TGIF Record # 61769
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DOI:10.1046/j.1469-8137.1999.00426.x
Web URL(s):http://www.jstor.org/stable/view/2588520
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http://www.jstor.org/stable/pdfplus/2588520.pdf
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Publication Type:
i
Refereed
Author(s):Garnier, E.; Salager, J.-L.; Laurent, G.; Sonié, L.
Author Affiliation:Centre d'Ecologie Fonctionelle et Evolutive, Montpellier, France
Title:Relationships between photosynthesis, nitrogen and leaf structure in 14 grass species and their dependence on the basis of expression
Source:New Phytologist. Vol. 143, July 1999, p. 119-129.
Publishing Information:Oxford, England: Cambridge University Press.
# of Pages:11
Related Web URL:http://www.jstor.org/stable/info/2588520
    Last checked: 07/16/2014
    Notes: Abstract only
Keywords:TIC Keywords: Photosynthesis; Nitrogen; Mesophyll; Carbon dioxide; Species trials; Comparisons; Leaf area; Leaf tissue; Lolium perenne; Poa pratensis; Poa annua; Tissue testing; Net assimilation rate; Gas exchange; Measurement; Pooideae; Carbon dioxide exchange rate
Abstract/Contents:"The relationships between leaf structure, nitrogen concentration and CO₂ assimilation rate (A) were studied for 14 grass species grown in the laboratory under non-limiting nutrient conditions. Structural features included leaf thickness and density, and the proportion of leaf volume occupied by different types of tissues (mesophyll, epidermis, vessels and sclerenchyma). Relationships were assessed for data expressed per unit leaf area and fresh mass. The latter was found to be closely related to leaf volume, which allowed us to use A per unit leaf fresh mass (A^D[f^D[m) as a surrogate of A per unit leaf volume. Assimilation rate per unit leaf area (Aₐ) was positively correlated with with leaf thickness and with the amount of mesophyll per unit leaf area; the relationship with leaf nitrogen content per unit area was only marginally significant. A^D[f^D[m was negatively correlated with leaf thickness and postively with fresh mass-based leaf organic nitrogen concentration. A multiple regression involving these two variables explained 81% of the variance in A^D[f^D[m. The value of A^D[f^D[m was also significantly related to the proportion of mesophyll in the leaf volume, but surprisingly the correlation was negative. This was because thin leaves with high A^D[f^D[m and nitrogen concentration had proportionally more mechanically supportive tissue than thick ones; as a consequence, they also had a lower proportion of mesophyll. These data suggest that, in addition to leaf nitrogen, leaf thickness has a strong impact on CO₂ assimilation rate for the grass species studied."
Language:English
References:42
Note:Figures
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Garnier, E., J.-L. Salager, G. Laurent, and L. Sonié. 1999. Relationships between photosynthesis, nitrogen and leaf structure in 14 grass species and their dependence on the basis of expression. New Phytol. 143:p. 119-129.
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DOI: 10.1046/j.1469-8137.1999.00426.x
Web URL(s):
http://www.jstor.org/stable/view/2588520
    Last checked: 07/16/2014
    Access conditions: Item is within a limited-access website
http://www.jstor.org/stable/pdfplus/2588520.pdf
    Last checked: 07/16/2014
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: QK 1 .N38
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