1. V.E. Landolt, Biosystematic Investigations in the Family of Duckweeds: The Family of Lemnaceae-A Monographic Study, Zerich: Veroffentlichung des Geobotanischen Institut ETH, Stiftung Rubel, 1986.
2. The significant role of cytokinins in maintaining the life of fronds in Spirodela polyrrhiza;Li;J. Plant Physiol. Mol. Biol.,2003
3. cDNA cloning and expression of rbcS gene in Spirodela polyrrhiza P143;Liu;Plant Physiol. Commun.,2002
4. L.D. Noodén, The phenomenon of senescence and aging, in: L.D. Noodén, S.C. Leopold (Eds.), Senescence and Aging in Plants, Academic Press, San Diego, 1988, pp. 1–50.
5. Senescence is induced in individually darkened Arabidopsis leaves, but inhibited in whole darkened plants;Weaver;Plant Physiol.,2001