Detailed Information on Publication Record
2017
Ascorbic acid affects short-term response of Scenedesmus quadricauda to cadmium excess
KOVÁČIK, Jozef, Bořivoj KLEJDUS, Petr BABULA and Josef HEDBAVNYBasic information
Original name
Ascorbic acid affects short-term response of Scenedesmus quadricauda to cadmium excess
Authors
KOVÁČIK, Jozef (703 Slovakia), Bořivoj KLEJDUS (203 Czech Republic), Petr BABULA (203 Czech Republic, guarantor, belonging to the institution) and Josef HEDBAVNY (203 Czech Republic)
Edition
Algal Research - Biomass Biofuels and Bioproducts, Amsterdam, Elsevier Science BV. 2017, 2211-9264
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 3.745
RIV identification code
RIV/00216224:14110/17:00097482
Organization unit
Faculty of Medicine
UT WoS
000404864600038
Keywords in English
Antioxidants; Fluorescence microscopy; Heavy metals; Krebs cycle acids; Mass spectrometry
Tags
Tags
International impact, Reviewed
Změněno: 8/3/2018 11:12, Soňa Böhmová
Abstract
V originále
Impact of ascorbate biosynthetic inhibitor (lycorine, LYC) on short-term cadmium (Cd) action (1 h, 100 mu M) was studied in the green alga Scenedesmus quadricauda with 1 h or 24 h of LYC co-application. LYC suppressed Cd-induced increase in ascorbic acid and enhanced oxidative symptoms (ROS fluorescence) by modulating activities of antioxidative enzymes after 24 h of addition (decrease in superoxide dismutase, catalase and ascorbate peroxidase activities). Prolonged (24 h) exposure to LYC also affected content of Cd and quantitative changes of thiols (glutathione and phytochelatin 2) while Cd itself revealed interesting responses in algae maintained in the buffer for various time: these data indicate that in the studies involving axenic algal cultures, transfer of cells from sterile to non-sterile conditions modulates metal uptake. Among aliphatic organic acids, a-ketoglutaric, lactic and malic acids were variously influenced by Cd or lycorine, suggesting shift in the respiration and fermentation. It is concluded that ascorbic acid is involved in the protection of cells against Cd-induced ROS over-accumulation and metabolic changes were more expressive in the samples with 24 h co-application of LYC though side impacts of LYC cannot be excluded. DESI-Orbitrap MS for the identification and visualization of lycorine was also successfully tested here for the first time.