Detailed Information on Publication Record
2018
Zinc oxide nanoparticles phytotoxicity on halophyte from genus Salicornia
BALÁŽOVÁ, Ľudmila, Petr BABULA, Matej BALÁŽ, Miriam BAČKOROVÁ, Zdenka BUJŇÁKOVÁ et. al.Basic information
Original name
Zinc oxide nanoparticles phytotoxicity on halophyte from genus Salicornia
Authors
BALÁŽOVÁ, Ľudmila (703 Slovakia, guarantor), Petr BABULA (203 Czech Republic, belonging to the institution), Matej BALÁŽ (703 Slovakia), Miriam BAČKOROVÁ (203 Czech Republic), Zdenka BUJŇÁKOVÁ (703 Slovakia), Jaroslav BRIANČIN (203 Czech Republic), Assylay KURMANBAYEVA (376 Israel) and Moshe SAGI (376 Israel)
Edition
Plant Physiology and Biochemistry, Paris, Elsevier, 2018, 0981-9428
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10611 Plant sciences, botany
Country of publisher
France
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 3.404
RIV identification code
RIV/00216224:14110/18:00104206
Organization unit
Faculty of Medicine
UT WoS
000444789200004
Keywords in English
Salicornia; ZnO nanoparticles; Oxidative stress; Halophyte; Phytotoxicity
Tags
International impact, Reviewed
Změněno: 11/2/2019 16:07, Soňa Böhmová
Abstract
V originále
This study deals with the effect of zinc oxide nanoparticles (ZnO NPs) on halophyte from the genus Salicornia. The presence of ZnO nanoparticles (100 and 1000 mg/L) in the solid culture medium resulted in the negative effects on plant growth in the concentration-dependent manner. The shoot length of plant cultivated with 1000 mg/L ZnO NPs decreased by more than 50% compared to non-treated plants. The phytotoxicity was associated with the release of free zinc(II) ions, which was determined by atomic absorption spectroscopy and fluorescence microscopy. Another mechanism involved in ZnO NPs phytotoxicity was closely connected with generation of reactive oxygen species (ROS), which was accompanied by changes in activities and amounts of antioxidant enzymes. Histochemical evaluation showed that ROS were present also in the shoot of plant, which was not in direct contact with NPs. The reduction of activity and amount of antioxidant enzymes such as gamma-ESC, GR, SOD, PER, APX and higher concentration of ROS lead to lipid peroxidation, the latter being almost 3 times higher for the plant treated with 1000 mg/L NPs compared to control. The misbalance in zinc homeostasis and creation of ROS with subsequent oxidative stress led to the initiation of processes of programmed cell death, which was demonstrated by the loss of mitochondrial potential and increase of intracellular calcium (II) ions. Despite halophytes exhibit higher stress resistance than glycophytes, they are prone to negative changes if incubated in the environment containing ZnO nanoparticles.