2020
Uptake and phytotoxicity of lead are affected by nitrate nutrition and phenolic metabolism
KOVACIK, Jozef, Slawomir DRESLER, Magdalena WOJCIAK-KOSIOR a Petr BABULAZákladní údaje
Originální název
Uptake and phytotoxicity of lead are affected by nitrate nutrition and phenolic metabolism
Autoři
KOVACIK, Jozef (703 Slovensko, garant), Slawomir DRESLER (616 Polsko), Magdalena WOJCIAK-KOSIOR (616 Polsko) a Petr BABULA (203 Česká republika, domácí)
Vydání
Environmental and Experimental Botany, OXFORD, Elsevier, 2020, 0098-8472
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.545
Kód RIV
RIV/00216224:14110/20:00116256
Organizační jednotka
Lékařská fakulta
UT WoS
000556869600012
Klíčová slova anglicky
Antioxidants; Heavy metals; Metal uptake; Oxidative stress; Secondary metabolites
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 20. 8. 2020 12:46, Mgr. Tereza Miškechová
Anotace
V originále
Complex environmental interactions may modify toxicity of metals. We studied responses of the common medicinal plant chamomile to lead (Pb) toxicity under nitrate sufficient (+ N) or deficient (-N) conditions involving also inhibitor of the key phenolic enzyme phenylalanine ammonia-lyase (2-aminoindane-2-phosphonic acid, AIP). Data indicate that N deficiency depleted nitrogenous but elevated phenolic metabolites or peroxidase activity and enhanced ROS (but not nitric oxide) formation evoked by Pb or AIP. Pb stimulated individual phenolic acids in the shoots but had no impact on total soluble phenols or flavonols where the impacts of AIP and N nutrition were more evident. Pb rather affected glutathione while N deficiency ascorbic and malic acids and the involvement of AIP in these changes was visible. PCA analyses showed clear separation with respect to N deficiency or AIP application. Besides, application of AIP stimulated accumulation of Pb in shoots and in absorbed root fraction while N deficiency suppressed Pb amount in shoots and stimulated in roots. Our data, to our knowledge for the first time, confirm that uptake of metals is not only a simple function of its presence but that mineral nutrition and state of the secondary metabolism have crucial impact on resulting responses.