Number of the records: 1

Polyamine profiles and biosynthesis in somatic embryo development and comparison of germinating somatic and zygotic embryos of Norway spruce

SYSNO ASEP	0335902
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Polyamine profiles and biosynthesis in somatic embryo development and comparison of germinating somatic and zygotic embryos of Norway spruce
Title	Biosyntéza a obsah polyaminů během vývoje somatických embryí a porovnání somatických a zygotických embryí smrku ztepilého v průběhu jejich klíčení
Author(s)	Gemperlová, Lenka (UEB-Q)_{ORCID, RID} Fischerová, Lucie (UEB-Q)_{RID, ORCID} Cvikrová, Milena (UEB-Q)_{RID, ORCID} Malá, J. (CZ) Vondráková, Zuzana (UEB-Q)_{RID, ORCID} Martincová, Olga (UEB-Q) Vágner, Martin (UEB-Q)_{RID, ORCID}
Source Title	Tree Physiology - ISSN 0829-318X Roč. 29, č. 10 (2009), s. 1287-1298
Number of pages	12 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	ADC ; ODC ; Picea abies
Subject RIV	GK - Forestry
R&D Projects	QH82303 GA MZe - Ministry of Agriculture (MZe)
CEZ	AV0Z50380511 - UEB-Q (2005-2011)
UT WOS	000270219200009
DOI	10.1093/treephys/tpp063
Annotation	The polyamine (PA) contents and activities of PA biosynthetic enzymes in Norway spruce somatic embryos [Picea abies L. (Karst.), genotype AFO 541] were studied in relation to anatomical changes during their development, from proliferation to germination, and changes in these variables associated with the germination of mature somatic and zygotic embryos were compared. Activities of PA biosynthetic enzymes steadily increased during the development of somatic embryos, from embryogenic suspensor mass until early cotyledonary stages. In these stages, the spermidine (Spd) level was significantly higher than the putrescine (Put) level, and the increases coincided with the sharp increases in S-adenosylmethionine decarboxylase activity in the embryos. The biosynthetic enzyme activity subsequently declined in mature cotyledonary embryos, accompanied by sharp reductions in PA contents, especially in cellular Put contents.
Workplace	Institute of Experimental Botany
Contact	David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
Year of Publishing	2010

Number of the records: 1