J 2020

Uptake and phytotoxicity of lead are affected by nitrate nutrition and phenolic metabolism

KOVACIK, Jozef, Slawomir DRESLER, Magdalena WOJCIAK-KOSIOR and Petr BABULA

Basic information

Original name

Uptake and phytotoxicity of lead are affected by nitrate nutrition and phenolic metabolism

Authors

KOVACIK, Jozef (703 Slovakia, guarantor), Slawomir DRESLER (616 Poland), Magdalena WOJCIAK-KOSIOR (616 Poland) and Petr BABULA (203 Czech Republic, belonging to the institution)

Edition

Environmental and Experimental Botany, OXFORD, Elsevier, 2020, 0098-8472

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.545

RIV identification code

RIV/00216224:14110/20:00116256

Organization unit

Faculty of Medicine

UT WoS

000556869600012

Keywords in English

Antioxidants; Heavy metals; Metal uptake; Oxidative stress; Secondary metabolites

Tags

Tags

International impact, Reviewed
Změněno: 20/8/2020 12:46, Mgr. Tereza Miškechová

Abstract

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.