2018
Zinc oxide nanoparticles phytotoxicity on halophyte from genus Salicornia
BALÁŽOVÁ, Ľudmila, Petr BABULA, Matej BALÁŽ, Miriam BAČKOROVÁ, Zdenka BUJŇÁKOVÁ et. al.Základní údaje
Originální název
Zinc oxide nanoparticles phytotoxicity on halophyte from genus Salicornia
Autoři
BALÁŽOVÁ, Ľudmila (703 Slovensko, garant), Petr BABULA (203 Česká republika, domácí), Matej BALÁŽ (703 Slovensko), Miriam BAČKOROVÁ (203 Česká republika), Zdenka BUJŇÁKOVÁ (703 Slovensko), Jaroslav BRIANČIN (203 Česká republika), Assylay KURMANBAYEVA (376 Izrael) a Moshe SAGI (376 Izrael)
Vydání
Plant Physiology and Biochemistry, Paris, Elsevier, 2018, 0981-9428
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Francie
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 3.404
Kód RIV
RIV/00216224:14110/18:00104206
Organizační jednotka
Lékařská fakulta
UT WoS
000444789200004
Klíčová slova anglicky
Salicornia; ZnO nanoparticles; Oxidative stress; Halophyte; Phytotoxicity
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 2. 2019 16:07, Soňa Böhmová
Anotace
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.