Plant and Cell Physiology, 1986, Vol. 27, No. 1 103-108
© 1986
Article |
Isolation and Identification of Nicotinic Acid as a Flower-Inducing Factor in Lemna
1The Institute of Physical and Chemical Research Wako, Saitama 351-01, Japan
2Department of Agricultural Chemistry, The University of Tokyo Bunkyo-ku, Tokyo 113, Japan
3Laboratory of Applied Botany, Faculty of Agriculture, Kyoto University Kyoto 606, Japan
4Smithsonian Environmental Research Center 12441 Parklawn Drive, Rockville, Maryland 20852-1773, U.S.A.
Extracts of flowering plants of the long-day plant Lemna gibba G3 and the short-day plants Lemna paucicostata 151 and 381 were tested on L. paucicostata 151 for flower-inducing activity. Crude extracts failed to show any activity but after several purification steps three fractions with flower-inducing activity were obtained. One fraction obtained from all three plants was shown to contain nicotinic acid by mass spectroscopic and NMR spectroscopic analyses. These results raise the possibility that nicotinic acid may act to influence the flowering process in Lemna.
(Received August 28, 1985; Accepted October 29, 1985)
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