Počet záznamů: 1

The influence of growth regulators on membrane permeability in cultures of winter wheat cells

SYSNO ASEP	0107466
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Ostatní články
Název	The influence of growth regulators on membrane permeability in cultures of winter wheat cells
Překlad názvu	Vliv regulátorů růstu na permeabilitu membrán v kulturách buněk z ozimé pšenice
Tvůrce(i)	Filek, M. (PL) KoĽcielniak, J. (PL) Marcińska, I. (PL) Macháčková, Ivana (UEB-Q) Krekule, Jan (UEB-Q)
Zdroj.dok.	Zeitschrift fuer Naturforschung. Section C: a Journal of Biosciences. - : Walter de Gruyter - ISSN 0939-5075 Roč. 59, 9/10 (2004), s. 673-678
Poč.str.	6 s.
Jazyk dok.	eng - angličtina
Země vyd.	DE - Německo
Klíč. slova	growth regulators ; cells ; permeability
Vědní obor RIV	GC - Pěstování rostlin, osevní postupy
CEP	IBS5038352 GA AV ČR - Akademie věd
CEZ	AV0Z5038910 - UEB-Q
Anotace	The effect of plant growth substances (IAA, 2,4-D, zeatin, kinetin, zearalenone) were studied on membrane properties of the cells of embryogenic (E) and non-embryogenic (NE) calli derived from immature inflorescences (inf) or embryos (emb) of winter wheat. Calli initiated from inflorescences show higher permeability. The ion leakage from cells of E calli was higher than from cells of NE calli. Growth regulators were used in concentrations of 2-30 mg/l (about 10-140 muM). All tested growth substances increased ion leakage from NE emb cells, IAA, zeatin and kinetin being most effective. In NE inf cells the effect of growth substances was similar as in NE emb, but much weaker. In E cells of both types (inf and emb) growth substances decreased ion leakage. Changes in the leakage of potassium and calcium ions were similar to those in total ion leakage. The uptake of labelled auxins (IAA and 2,4-D) was higher in NE cells (especially in NE inf) than in E cells. The endogenous level of IAA was higher in E cells than in NE cells and in inf cells than in emb cells. The importance of auxin in determining permeability of cell membranes is discussed.
Pracoviště	Ústav experimentální botaniky
Kontakt	David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
Rok sběru	2005

Počet záznamů: 1