Response of cytokinins and nitrogen metabolism in the fronds of Pteris sp. Under arsenic stress
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F20%3A00531600" target="_blank" >RIV/61389030:_____/20:00531600 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41210/20:81896
Result on the web
<a href="http://doi.org/10.1371/journal.pone.0233055" target="_blank" >http://doi.org/10.1371/journal.pone.0233055</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1371/journal.pone.0233055" target="_blank" >10.1371/journal.pone.0233055</a>
Alternative languages
Result language
angličtina
Original language name
Response of cytokinins and nitrogen metabolism in the fronds of Pteris sp. Under arsenic stress
Original language description
Given the close relationship between cytokinins (CKs), photosynthesis and nitrogen metabolism, this study assessed the effect of arsenic (As) contamination on these metabolic components in the As-hyperaccumulators Pteris cretica L. var. Albo-lineata (Pc-A) and var. Parkerii (Pc-P) as well as the As-non-hyperaccumulator Pteris straminea Mett. ex Baker (Ps). The ferns were cultivated in a pot experiment for 23 weeks in soil spiked with As at the levels 20 and 100 mg·kg-1. For the purpose of this study, the CKs were placed into five functionally different groups according to their structure and physiological roles: bioactive forms (bCKs, CK free bases), inactive or weakly active forms (dCKs, CK N-glucosides), transport forms (tCKs, CK ribosides), storage forms (sCKs, O-glucosides), and primary products of CK biosynthesis (ppbCKs, CK nucleotides). An important finding was higher CKs total content, accumulation of sCKs and reduction of dCKs in As-hyperaccumulators in contrast to non-hyperaccumulator ferns. A significant depletion of C resources was confirmed in ferns, especially Ps, which was determined by measuring the photosynthetic rate and chlorophyll fluorescence. A fluorescence decrease signified a reduction in the C/N ratio, inducing an increase of bioactive CKs forms in Pc-P and Ps. The impact of As on N utilization was significant in As-hyperaccumulators. The glutamic acid/glutamine ratio, an indicator of primary N assimilation, diminished in all ferns with increased As level in the soil. In conclusion, the results indicate a large phenotypic diversity of Pteris species to As and suggest that the CKs composition and the glutamic acid/glutamine ratio can be used as a tool to diagnose As stress in plants.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10609 - Biochemical research methods
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PLoS ONE
ISSN
1932-6203
e-ISSN
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Volume of the periodical
15
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
22
Pages from-to
e0233055
UT code for WoS article
000537496000045
EID of the result in the Scopus database
2-s2.0-85084785357