Light modulates activity and expression of glutamine synthetase isoforms in maize seedling roots
2008
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
In maize roots, continuous illumination inhibits chloroplastic glutamine synthetase (GS2) activity, which decreased in light from 72.8% in 4-day-old to 26% in 10-day-old plants. In dark-adapted plants transferred to light for 6 days, GS2 activity declined from 100% to 41%, but in light-adapted plants transferred to darkness, it increased to the level of the dark control. Changes of cytosolic (GS1) activity were minor, with a similar trend. Quantitative RT-PCR revealed that light/dark treatments moderately affected only transcription of GS1 isoforms, with the exception of GS1-2, which was dramatically induced by darkness and repressed by light.
Ključne reči:
Expression; glutamine synthetase; GS1; GS2; GS1-2; maize; light; real-time PCR; Zea maysIzvor:
Archives of Biological Sciences, 2008, 60, 4, 649-660Finansiranje / projekti:
- Svetlosna i hormonalna kontrola rastenja i razvića biljaka, razmnožavanje in vitro i ex situ zaštita retkih i ugroženih vrsta (RS-MESTD-MPN2006-2010-143031)
- U.S. Department of Agriculture, agreement No. 2002-35100-12054
- ND-EPSCoR
DOI: 10.2298/ABS0804649S
ISSN: 0354-4664