Khurana, J. P. ; Tamot, B. K. ; Maheshwari, S. C. (1988) Floral induction in a photoperiodically insensitive duckweed, Lemna paucicostata LP6 Plant Physiology, 86 . pp. 904-907. ISSN 0032-0889
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Official URL: http://www.plantphysiol.org/cgi/content/abstract/8...
Abstract
The effects of 20 amino acids and two amides were studied on the flowering of a photoperiodically insensitive duckweed, Lemna paucicostata LP6. Alanine, asparagine, aspartate, cystine, glutamate, glutamine, glycine, lysine, methionine, proline, serine, and threonine induced flowering under a photoperiodic regime of 16 hours light and 8 hours darkness. Among these, glutamate and aspartate were found to be the most effective for flower induction. These acids could initiate flowering even at 5×10-7 molar level, though maximal flowering (about 80%) was obtained at 10-5 molar. Change in the photoperiodic schedule or the pH of the nutrient medium did not influence glutamate- or aspartate-induced flowering. The low concentrations at which glutamate and aspartate are effective suggests that they may have a regulatory role rather than simply acting as metabolites.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Society of Plant Biologists. |
ID Code: | 18530 |
Deposited On: | 17 Nov 2010 09:19 |
Last Modified: | 17 May 2016 03:14 |
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