Abstract
Flowering of Lemna perpusilla strain 6746 grown on 0.1 strength Hutner's medium in short days was inhibited by sucrose, glucose, fructose, and mannose, but not by various other sugars or metabolic intermediates. Only those sugars that inhibited flowering supported heterotrophic growth. Experiments with a single inductive long night indicated that an early stage in flowering was the sugar-sensitive process. Inhibition of flowering by carbohydrates was accompanied by reduced levels of chlorophyll and β-carotene. The inhibitory effects of carbohydrates on flowering were partially reversed by iminodiacetate, glycine, and l-aspartate but not by d-aspartate, ethylenediaminetetraacetate, acetate, δ-aminolevulinic acid, or mevalonic acid. The possibility is discussed that carbohydrate repression of flowering and of chloroplast pigments resulted from inadequate levels of amino acids.
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Selected References
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- Arnon D. I. COPPER ENZYMES IN ISOLATED CHLOROPLASTS. POLYPHENOLOXIDASE IN BETA VULGARIS. Plant Physiol. 1949 Jan;24(1):1–15. doi: 10.1104/pp.24.1.1. [DOI] [PMC free article] [PubMed] [Google Scholar]
- BURTON K. A study of the conditions and mechanism of the diphenylamine reaction for the colorimetric estimation of deoxyribonucleic acid. Biochem J. 1956 Feb;62(2):315–323. doi: 10.1042/bj0620315. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hillman W. S. Nonphotosynthetic Light Requirement in Lemna minor and Its Partial Satisfaction by Kinetin. Science. 1957 Jul 26;126(3265):165–166. doi: 10.1126/science.126.3265.165. [DOI] [PubMed] [Google Scholar]
- Miller J., Ross C. Inhibition of leaf process by p-fluorophenylalanine during induction of flowering in the cocklebur. Plant Physiol. 1966 Sep;41(7):1185–1192. doi: 10.1104/pp.41.7.1185. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Posner H. B. Inhibitory Effect of Carbohydrate on Flowering in Lemna perpusilla. I. Interaction of Sucrose With Calcium and Phosphate Ions. Plant Physiol. 1969 Apr;44(4):562–566. doi: 10.1104/pp.44.4.562. [DOI] [PMC free article] [PubMed] [Google Scholar]