Počet záznamů: 1
The contents of free amino acids and elements in As-hyperaccumulator Pteris cretica and non-hyperaccumulator Pteris straminea during reversible senescence
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SYSNO ASEP 0484779 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The contents of free amino acids and elements in As-hyperaccumulator Pteris cretica and non-hyperaccumulator Pteris straminea during reversible senescence Tvůrce(i) Pavlíková, D. (CZ)
Zemanová, Veronika (UEB-Q) ORCID, RID
Pavlík, Milan (UEB-Q) RID, ORCIDCelkový počet autorů 3 Zdroj.dok. Plant, Soil and Environment. - : Česká akademie zemědělských věd - ISSN 1214-1178
Roč. 63, č. 10 (2017), s. 455-460Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova arsenic accumulation ; vittata l. ; stress ; metabolism ; responses ; contamination ; plants ; ferns ; metallophytes ; anabolic and catabolic processes ; stress metabolism plants ; nitrogen assimilation Vědní obor RIV DK - Kontaminace a dekontamin. půdy vč. pesticidů Obor OECD Bioremediation, diagnostic biotechnologies (DNA chips and biosensing devices) in environmental management CEP GA17-10591S GA ČR - Grantová agentura ČR Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000415825900004 DOI https://doi.org/10.17221/606/2017-PSE Anotace The objectives of this study were to analyse the relationship between the contents of elements and free amino acids (AAs) in fronds of As-hyperaccumulator Pteris cretica cv. Albo-lineata (PC) and non-hyperaccumulator Pteris straminea (PS) during reversible senescence. The time-course effect on senescence was also investigated. The two ferns were grown in a pot experiment with soil containing 16 mg As-total/kg soil for 160 days. The contents of elements and AAs in both ferns and in individual sampling periods differed. The highest accumulation of elements and AAs was measured in PS fronds after 83 days, however, the accumulation of As, Ca, Cu, Fe, Mg, P and asparagin in PC fronds was highest after 160 days. The results of principal component analysis showed more rapid senescence of PS compared to PC. This was caused by changes in the relationship between the contents of elements (cofactors of metallo-enzymes, stress metabolites) and AAs (transport of NH2 group and stress metabolites). The hyperaccumulator plant (PC) was more resistant than the bioindicator plant (PS) to the conversion from reversible to irreversible senescence. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2018
Počet záznamů: 1