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Chlorophyll biosynthesis and chloroplast development in etiolated seedlings of Ginkgo biloba L

SYSNO ASEP	0352587
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Chlorophyll biosynthesis and chloroplast development in etiolated seedlings of Ginkgo biloba L
Author(s)	Pavlovič, A. (SK) Slováková, L. (SK) Demko, V. (SK) Durchan, Milan (BC-A)_RID Mikulová, K. (SK) Hudák, J. (SK)
Source Title	Photosynthetica. - : Ústav experimentální botaniky AV ČR, v. v. i. - ISSN 0300-3604 Roč. 47, č. 4 (2009), s. 510-516
Number of pages	7 s.
Language	eng - English
Country	CZ - Czech Republic
Keywords	Aminolevulinic acid ; Ginkgo biloba ; light-independent chlorophyll biosynthesis
Subject RIV	CE - Biochemistry
CEZ	AV0Z50510513 - UMBR-M, BC-A (2005-2011)
UT WOS	000275416900004
DOI	10.1007/s11099-009-0076-6
Annotation	Ginkgo biloba is a large tree native in China with evolutionary affinities to the conifers and cycads. However unlike conifers, the gymnosperm G.biloba is not able to synthesize chlorophyll (Chl) in the dark, in spite of the presence of genes encoding subunits of light-independent protochlorophyllide oxidoreductase (DPOR) in the plastid genome. The principal aims of the present study were to investigate the presence of DPOR protein subunits as well as the key regulatory step in Chl formation: aminolevulinic acid synthesis and abundance of the key regulatory enzyme in its synthesis: glutamyl-tRNA reductase. In addition, functional stage of photosynthetic apparatus and assembly of pigment-protein complexes were investigated. Dark-grown, illuminated and circadian-grown seedlings were used. Our results clearly showed that no protein subunits of DPOR were detected irrespective of light conditions, what is consistent with the absence of Chl and Chl-binding proteins in the dark.
Workplace	Biology Centre (since 2006)
Contact	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Year of Publishing	2011

Number of the records: 1