Copper and zinc accumulation, distribution, and tolerance in Pistia stratiotes L., revealing the role of root caps

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00583891" target="_blank" >RIV/60077344:_____/23:00583891 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/23:43907199

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0166445X23003338?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0166445X23003338?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquatox.2023.106731" target="_blank" >10.1016/j.aquatox.2023.106731</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Copper and zinc accumulation, distribution, and tolerance in Pistia stratiotes L., revealing the role of root caps

Popis výsledku v původním jazyce

Pollution by potentially toxic trace metals, such as copper or zinc, is global. Both Cu and Zn are essential microelements, which in higher concentrations become toxic. The aquatic plant Pistia stratiotes(L. has great potential for phytoremediation. Also, it has an unusually large and easily detachable root cap, which makes it a suitable model for studying the potential role of the root cap in metal uptake. Plant response to environmentally relevant concentrations of Cu (0.1, 0.3, and 1 mu M) and Zn (0.3, 1, and 3 mu M) was investigated with the aim of studying their interaction and distribution at the root tissue level as well as revealing their tolerance mechanisms. Changes in the root anatomy and plant ionome were determined using light and fluorescence microscopy, ICP-MS, and mu XRF imaging. Alterations in photosynthetic activity caused by Cu or Zn excesses were monitored by direct imaging of fast chlorophyll fluorescence kinetics (OJIP). Fe and Mn were preferentially localized in the root cap, while Ca, Cu, Ni, and Zn were mainly in the root tip regardless of the Cu/Zn treatment. Translocation of Cu and Zn to the leaves increased with higher doses, however the translocation factor was the lowest in the highest treatments. Measurements of photosynthetic parameters showed a higher susceptibility of electron transport flux from QA to QB under increasing Cu than Zn supply. This, along with our findings regarding the root anatomy and the differences in Ca accumulation and distribution, led to the conclusion that P. stratiotes is more effective for Zn remediation than Cu.

Název v anglickém jazyce

Copper and zinc accumulation, distribution, and tolerance in Pistia stratiotes L., revealing the role of root caps

Popis výsledku anglicky

Pollution by potentially toxic trace metals, such as copper or zinc, is global. Both Cu and Zn are essential microelements, which in higher concentrations become toxic. The aquatic plant Pistia stratiotes(L. has great potential for phytoremediation. Also, it has an unusually large and easily detachable root cap, which makes it a suitable model for studying the potential role of the root cap in metal uptake. Plant response to environmentally relevant concentrations of Cu (0.1, 0.3, and 1 mu M) and Zn (0.3, 1, and 3 mu M) was investigated with the aim of studying their interaction and distribution at the root tissue level as well as revealing their tolerance mechanisms. Changes in the root anatomy and plant ionome were determined using light and fluorescence microscopy, ICP-MS, and mu XRF imaging. Alterations in photosynthetic activity caused by Cu or Zn excesses were monitored by direct imaging of fast chlorophyll fluorescence kinetics (OJIP). Fe and Mn were preferentially localized in the root cap, while Ca, Cu, Ni, and Zn were mainly in the root tip regardless of the Cu/Zn treatment. Translocation of Cu and Zn to the leaves increased with higher doses, however the translocation factor was the lowest in the highest treatments. Measurements of photosynthetic parameters showed a higher susceptibility of electron transport flux from QA to QB under increasing Cu than Zn supply. This, along with our findings regarding the root anatomy and the differences in Ca accumulation and distribution, led to the conclusion that P. stratiotes is more effective for Zn remediation than Cu.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/EF15_003%2F0000336" target="_blank" >EF15_003/0000336: Kovy, rostliny a lidé</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Aquatic Toxicology

ISSN

0166-445X

e-ISSN

1879-1514

Svazek periodika

264

Číslo periodika v rámci svazku

NOV 2023

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

106731

Kód UT WoS článku

001098605000001

EID výsledku v databázi Scopus

2-s2.0-85174674478