Photosynthetica 1999, 36(3):333-340 | DOI: 10.1023/A:1007029402368

Red Radiation and Choline Compounds Influence Growth and Greening of Wheat Seedlings

E.F. Kobzar, V.D. Kreslavskiï, E.N. Muzafarov

The effects of 2-chloroethyltrimethylammonium chloride (CCh), 2-ethyltrimethylammonium chloride (Ch), and acetylcholine chloride (ACh) at concentrations of 1 µM - 5 mM and of red radiation (R) pulse on growth, greening, and formation of the photosynthetic apparatus in etiolated wheat seedlings (Triticum aestivum L. cv. Moskovskaya-35) were examined. A short-term application of cholines and R pulse stimulated the first leaf growth and its appearance from coleoptile, and inhibited the coleoptile growth. The effects of cholines were observed during 96 h after the treatment of 4-d-old seedlings and depended on the type and the concentration of cholines. CCh, Ch, and R were also stimulators of greening and increased the photosynthetic activity, whereas ACh did not influence the process of greening. Joint effects of R with cholines on the growth and photomorphogenesis were greater than the individual ones, whereas far-red (FR) radiation decreased the influence of cholines. Thus phytochrome may modify the effects of cholines in the processes of growth and greening.

Additional key words: acetylcholine chloride; 2-chloroethyltrimethylammonium chloride; chlorophyll; cholines; coleoptile length; 2-ethyltrimethylammonium chloride; fluorescence induction kinetics; leaf length; Triticum aestivum L.

Published: August 1, 1999  Show citation

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Kobzar, E.F., Kreslavskiï, V.D., & Muzafarov, E.N. (1999). Red Radiation and Choline Compounds Influence Growth and Greening of Wheat Seedlings. Photosynthetica, 36(3), 333-340. doi: 10.1023/A:1007029402368
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