 ISSN 1392-0200 |
2009 m. Nr. 1-2 Peroxidase and polyphenoloxidase polymorphism during embryogenesis in Eucoreosma section currants
The polymorphism of peroxidase and polyphenoloxidase during embryogenesis was investigated over 1997–2008 in four currant species (genus Ribes, section Eucoreosma). At organogenesis stage X (according to F. Kuperman), in all currant species an intensive growth of berries and seeds proceeded. At this stage, the embryo changed from globular to cordate, its organs differentiated, in maternal plant leaves the maximum peroxidase (Px) polymorphism was observed. At organogenesis stage XI, in all currant species, when embryo growth proceeded very intensively, the content of peroxidase isoforms decreased. The increase of the number of new Px isoforms of the genus Ribes, Eucoreosma section currants at plant organogenesis stage X was directly related to embryo differentiation. No relationship was found between the PPO isoform spectrum and embryo differentiation. Raktažodžiai: embryogenesis, organogenesis, currant species, isoenzymes, peroxidase, ortho-diphenoloxidase |
Numeriai:
2012 - T.19 Nr.1 2011 - T.18 Nr.1, Nr.2, Nr.3, Nr.4 2010 - T.17 Nr.1-2, Nr.3-4 2009 - T.16 Nr.1-2, Nr.3-4 2008 - T.15 Nr.1, Nr.2, Nr.3, Nr.4 2007 - T.14 Nr.1, Nr.2, Nr.3, Nr.4, Nr.Priedas 2006 Nr.1, Nr.1.Priedas, Nr.2, Nr.3, Nr.4 2005 Nr.1, Nr.2, Nr.3, Nr.4 2004 Nr.1, Nr.2, Nr.3, Nr.4 2003 Nr.1, Nr.2, Nr.3, Nr.4 2002 Nr.1, Nr.2, Nr.3, Nr.4 2001 Nr.1, Nr.2, Nr.3, Nr.4 |