Photosynthesis of tropical pasture plants IV. Basis and consequences of differences between grasses and legumes

Ludlow M.M. and Wilson G.L. (1972) Photosynthesis of tropical pasture plants IV. Basis and consequences of differences between grasses and legumes. Australian Journal of Biological Sciences, 25 6: 1133-1145. doi:10.1071/BI9721133


Author Ludlow M.M.
Wilson G.L.
Title Photosynthesis of tropical pasture plants IV. Basis and consequences of differences between grasses and legumes
Journal name Australian Journal of Biological Sciences   Check publisher's open access policy
ISSN 0004-9417
Publication date 1972-01-01
Sub-type Article (original research)
DOI 10.1071/BI9721133
Open Access Status Not yet assessed
Volume 25
Issue 6
Start page 1133
End page 1145
Total pages 13
Language eng
Subject 1305 Biotechnology
2743 Reproductive Medicine
1103 Animal Science and Zoology
1312 Molecular Biology
2500 Materials Science
1311 Genetics
1310 Endocrinology
1309 Developmental Biology
Abstract Differences in leaf net photosynthetic rate were associated with differences in intracellular resistance. The larger intracellular resistance of legume leaves appeared to result from larger resistances to the movement of CO from the mesophyll cell wall to the photosynthetic sites rather than from high resistances associated with its fixation at the sites. Photorespiration could not be detected in grasses but their dark respiration rates at normal ambient CO concentrations were higher than the values for legumes. Although legumes had an appreciable photo respiration rate, this alone could not account for their lower photosynthetic rates. The higher intracellular resistance appeared to be an equally important factor. The photosynthetic advantage of individual grass leaves compared with legumes was reflected in higher productivity of whole plants and, to a lesser extent, of grass swards. Furthermore, it is an important determinant of the lower transpiration ratios of grasses at leaf, plant, and sward levels.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 29 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 20 Jun 2017, 00:03:31 EST by System User