Number of the records: 1
The contents of free amino acids and elements in As-hyperaccumulator Pteris cretica and non-hyperaccumulator Pteris straminea during reversible senescence
- 1.
SYSNO ASEP 0484779 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The contents of free amino acids and elements in As-hyperaccumulator Pteris cretica and non-hyperaccumulator Pteris straminea during reversible senescence Author(s) Pavlíková, D. (CZ)
Zemanová, Veronika (UEB-Q) ORCID, RID
Pavlík, Milan (UEB-Q) RID, ORCIDNumber of authors 3 Source Title Plant, Soil and Environment. - : Česká akademie zemědělských věd - ISSN 1214-1178
Roč. 63, č. 10 (2017), s. 455-460Number of pages 6 s. Language eng - English Country CZ - Czech Republic Keywords arsenic accumulation ; vittata l. ; stress ; metabolism ; responses ; contamination ; plants ; ferns ; metallophytes ; anabolic and catabolic processes ; stress metabolism plants ; nitrogen assimilation Subject RIV DK - Soil Contamination ; De-contamination incl. Pesticides OECD category Bioremediation, diagnostic biotechnologies (DNA chips and biosensing devices) in environmental management R&D Projects GA17-10591S GA ČR - Czech Science Foundation (CSF) Institutional support UEB-Q - RVO:61389030 UT WOS 000415825900004 DOI https://doi.org/10.17221/606/2017-PSE Annotation 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. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2018
Number of the records: 1