Authors:M Stojanovic, V Zivkovic, I Srejovic, V Jakovljevic, N Jeremic, and D Djuric
-lyase (CSE), and 3-mercaptopyruvate sulfur transferase] ( 19 ). These three enzymes break down Hcy into hydrogen sulfide (H 2 S) ( 33 ). Together with nitric oxide ( • NO), carbon monoxide (CO), and methane, H 2 S belongs to a group of gaseous messengers
Authors:Emese Nagygyörgy, Barbara Kovács, Éva Leiter, Márton Miskei, István Pócsi, László Hornok, and Attila Ádám
Stress sensitivity of three related phytopathogenic Fusarium species (Fusarium graminearum, Fusarium oxysporum and Fusarium verticillioides) to different oxidative, osmotic, cell wall, membrane, fungicide stressors and an antifungal protein (PAF) were studied in vitro. The most prominent and significant differences were found in oxidative stress tolerance: all the three F. graminearum strains showed much higher sensitivity to hydrogen peroxide and, to a lesser extent, to menadione than the other two species. High sensitivity of F. verticillioides strains was also detectable to an azole drug, Ketoconazole. Surprisingly, no or limited differences were observed in response to other oxidative, osmotic and cell wall stressors. These results indicate that fungal oxidative stress response and especially the response to hydrogen peroxide (this compound is involved in a wide range of plant-fungus interactions) might be modified on niche-specific manner in these phylogenetically related Fusarium species depending on their pathogenic strategy. Supporting the increased hydrogen peroxide sensitivity of F. graminearum, genome-wide analysis of stress signal transduction pathways revealed the absence one CatC-type catalase gene in F. graminearum in comparison to the other two species.
Loevenhart AS, Kastle JH. On the catalytic decomposition of
hydrogen peroxide and the mechanism of induced oxidations together with a note
on the nature and function of catalase. As to the mode of
Authors:László Góth, Melinda Csordás, Zsuzsanna Kósa, and Enikő Simics
139 – 140 .
 Scallreuter , K. U. , Rübsam , K. , Gibbson , N. C. J. et al. 2008 Methionine sulfoxide reductases A and B are deactivated by hydrogen peroxide (H 2 O 2 ) in the epidermis of patients with vitiligo J. Invest. Dermatol
Authors:László Góth, Teréz Nagy, and Miklós Káplár
H 2 O 2 removing enzyme in human erythrocytes. Blood, 1997, 90 (12), 4973–4978.
Masuoka, N., Wakimoto, M., Ubuka, T., et al.: Spectrophotometric determination of hydrogen peroxide: catalase activity and rates
Authors:Zhao Namula, Yoko Sato, Manita Wittayarat, Quynh Anh Le, Nhien Thi Nguyen, Qingyi Lin, Maki Hirata, Fuminori Tanihara, and Takeshige Otoi
performed to investigate whether curcumin would be able to protect porcine oocytes from hydrogen-peroxide-induced oxidative stress at a suitable concentration. Materials and methods In vitro maturation and assessment IVM was performed according to methods