2019
Nitric oxide affects cadmium-induced changes in the lichen Ramalina farinacea
KOVACIK, Jozef, Slawomir DRESLER, Giuseppe MICALIZZI, Petr BABULA, Juraj HLADKY et. al.Základní údaje
Originální název
Nitric oxide affects cadmium-induced changes in the lichen Ramalina farinacea
Autoři
KOVACIK, Jozef (703 Slovensko, garant), Slawomir DRESLER (616 Polsko), Giuseppe MICALIZZI (380 Itálie), Petr BABULA (203 Česká republika, domácí), Juraj HLADKY (703 Slovensko) a Luigi MONDELLO (380 Itálie)
Vydání
NITRIC OXIDE-BIOLOGY AND CHEMISTRY, SAN DIEGO, ACADEMIC PRESS INC ELSEVIER SCIENCE, 2019, 1089-8603
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.311
Kód RIV
RIV/00216224:14110/19:00112789
Organizační jednotka
Lékařská fakulta
UT WoS
000456636100002
Klíčová slova anglicky
Antioxidants; Fluorescence microscopy; Heavy metals; Oxidative stress; Photobiont; Polyunsaturated fatty acids
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 1. 2020 10:00, Mgr. Tereza Miškechová
Anotace
V originále
Metabolic responses of epiphytic lichen Ramalina farinacea to cadmium (Cd) and/or nitric oxide (NO) scavenger (cPTIO) were studied. Accumulation of Cd and other metallic nutrients was not affected by cPTIO while total and absorbed amounts differed. Cd-induced NO formation was suppressed by cPTIO but ROS signal was synergistically enhanced, confirming that NO is essential to keep ROS under control. This excessive ROS generation could be a reason for depleted amount of all fatty acids, including SFAs, MUFAs and PUFAs. Total content of fatty acids reached 3.89 mg/g DW in control with linoleic (40%), palmitic (24%), oleic (12.8%) and stearic (8%) acids as major compounds: interestingly, shift in relative ratio of saturated (from 40 to 35% of total FM) versus polyunsaturated fatty acids (from 42 to 48% of total FM) was observed. Glutathione was suppressed by all treatments but Krebs acids were almost unaffected by cPTIO, indicating no regulatory role of NO in their accumulation. On the contrary, Cd-induced elevation in NO signal was related to increase in ascorbate and proline content while cPTIO suppressed it, indicating a tight relation between NO and these metabolites. Data are compared also with algae and vascular plants to show similarities between various life lineages.