Počet záznamů: 1

Mesophyll conductance to CO2 transport estimated by two independent methods: effect of variable CO2 concentration and abscisic acid

SYSNO ASEP	0330209
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Mesophyll conductance to CO2 transport estimated by two independent methods: effect of variable CO2 concentration and abscisic acid
Překlad názvu	Mezofylová vodivost pro transport CO2 stanovená dvěma nezávislými metodami: vliv proměnné koncentrace CO2 a kyseliny abscisové
Tvůrce(i)	Vrábl, D. (CZ) Vašková, M. (CZ) Hronková, Marie (BC-A)_RID Flexas, J. (ES) Šantrůček, Jiří (BC-A)_RID
Celkový počet autorů	5
Zdroj.dok.	Journal of Experimental Botany. - : Oxford University Press - ISSN 0022-0957 Roč. 60, č. 8 (2009), s. 2315-2323
Poč.str.	9 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	Carbon dioxide ; mesophyll conductance ; Helianthus annuus
Vědní obor RIV	ED - Fyziologie
CEP	IAA601410505 GA AV ČR - Akademie věd
CEZ	AV0Z50510513 - UMBR-M, BC-A (2005-2011)
UT WOS	000266348800009
DOI	10.1093/jxb/erp115
Anotace	Mesophyll conductance (gm) and stomatal conductance (gs) are two crucial components of the diffusive limitation of photosynthesis. Variation of gm in response to CO2 concentration was evaluated by using two independent methods based on measurements of variable electron transport rate (J) and instantaneous carbon isotope discrimination, respectively. Both methods of gm estimation showed a very similar shape of the gm/Ci relationship, with an initial increase at low substomatal CO2 concentrations (Ci), a peak at 180-200 micromol per mol of air and subsequent decrease at higher Ci. Plants were also treated with abscisic acid (ABA) which induced a reduction in gs without significantly affecting the rate of photosynthesis, gm or the photosynthetic capacity. The results confirm, that gm is strongly sensitive to Ci and that the relationship between gs and gm is not conservative , differing between control and ABA-treated sunflower plants.
Pracoviště	Biologické centrum (od r. 2006)
Kontakt	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Rok sběru	2010

Počet záznamů: 1