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The effect of light on the level of acetylcholine in seedlings of the wild-type and phytochrome mutants of tomato (Lycopersicon esculentum Mill.)

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dc.contributor.author Wiśniewska, Justyna
dc.contributor.author Tretyn, Andrzej
dc.date.accessioned 2015-08-03T10:47:41Z
dc.date.available 2015-08-03T10:47:41Z
dc.date.issued 1999-09-01
dc.identifier.citation Acta Physiologiae Plantarum vol. 21(3), 1999, pp. 221-230.
dc.identifier.issn 0137-5881
dc.identifier.uri http://repozytorium.umk.pl/handle/item/2904
dc.description.abstract Applying the method of pyrolysis coupled with gas chromatography (PYR-GC) the content of endogenous acetylcholine (ACh) was investigated in the extracts obtained from tomato (Lycopersicon esculentum Mill.). Seven-day-old seedlings of wild type (WT) and phytochrome mutants au (aurea), hp (high pigment), fri (far-red light insensitive) and tri (temporarily red light insensitive) were studied. In the analyzed material the presence of choline and acetylcholine was discovered. The highest content of ACh (381 mmole/g of fresh weight) was found in tomato cotyledons, whereas the lowest amount (162 nmole/g of fresh weight) in roots. The level of ACh in the plants grown under the continuous light was higher than in etiolated ones. However, no considerable differences in the concentrations of ACh in au and tri seedlings grown under the continuous light and in darkness were observed. The irradiation of etiolated seedlings of wild type with red light was accompanied by the increase of endogenous level of ACh. The pulse of far-red light applied directly after red light reversed this stimulating effect. A similar effect of both light wavelengths on the content of ACh was also found in the case of the tri mutant. On the other hand, in the case offi-i mutant, pulse of red light caused the drop in the content of ACh, whereas far-red applied after red light caused visible increase in the level of the investigated substance. In tissues of au mutant no effect of red and far-red lights on the concentration of ACh was established.
dc.language.iso eng
dc.publisher Springer-Verlag
dc.rights Attribution-NonCommercial-NoDerivs 3.0 Poland
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/pl/
dc.subject Acetylcholine
dc.subject gas chromatography
dc.subject pyrolysis
dc.subject phytochrome
dc.subject photomorphogenic mutants
dc.subject tomato
dc.subject Lycopersicon esculentum
dc.title The effect of light on the level of acetylcholine in seedlings of the wild-type and phytochrome mutants of tomato (Lycopersicon esculentum Mill.)
dc.type info:eu-repo/semantics/article


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