Central Plantation Crops Research Institute, Regional Station, Vittal 574243, Karnataka, India.
DISTRIBUTION OF THE C4 DICARBOXYLIC ACID PATHWAY OF PHOTOSYNTHESIS IN LOCAL MONOCOTYLEDONOUS PLANTS AND ITS TAXONOMIC SIGNIFICANCE
Article first published online: 2 MAY 2006
Volume 76, Issue 2, pages 301–305, March 1976
How to Cite
RAGHAVENDRA, A. S. and DAS, V. S. R. (1976), DISTRIBUTION OF THE C4 DICARBOXYLIC ACID PATHWAY OF PHOTOSYNTHESIS IN LOCAL MONOCOTYLEDONOUS PLANTS AND ITS TAXONOMIC SIGNIFICANCE. New Phytologist, 76: 301–305. doi: 10.1111/j.1469-8137.1976.tb01465.x
- Issue published online: 2 MAY 2006
- Article first published online: 2 MAY 2006
- Received 21 July 1975
The photosynthetic characteristics of fifty-six monocotyledonous plants belonging to seventeen families were examined. As many as twenty-three plants, hitherto unreported, showed C4 pathway characteristics. C4 species were recorded in ten new genera. The C4 plants were confined to the families, Cyperaceae and Gramineae. The findings confirm the highly evolved nature of the tribes Andropogoneae and Paniceae in contrast to the primitive features of Agrosteae and Festuceae. On the basis of photosynthetic characteristics, it is suggested that Aristida should be included in a separate tribe, Aristideae, whereas Eragrostis resembles more panicoid grasses rather than the members of Festuceae. The importance of the C4 syndrome in relation to the evolution of grasses is stressed.