Oxylipins and Reactive Carbonyls as Regulators of the Plant Redox and Reactive Oxygen Species Network under Stress

Autor: Madita Knieper, Andrea Viehhauser, Karl-Josef Dietz

Publikováno v: Antioxidants, Vol 12, Iss 4, p 814 (2023)

Reactive oxygen species (ROS), and in particular H2O2, serve as essential second messengers at low concentrations. However, excessive ROS accumulation leads to severe and irreversible cell damage. Hence, control of ROS levels is needed, especially un

Externí odkaz: https://doaj.org/article/f0cab35c4d2f435998f3c65b0b5bdeb9

The In Vitro Interaction of 12-Oxophytodienoic Acid and Related Conjugated Carbonyl Compounds with Thiol Antioxidants

Autor: Daniel Maynard, Andrea Viehhauser, Madita Knieper, Anna Dreyer, Ghamdan Manea, Wilena Telman, Falk Butter, Kamel Chibani, Renate Scheibe, Karl-Josef Dietz

Publikováno v: Biomolecules, Vol 11, Iss 3, p 457 (2021)

α,β-unsaturated carbonyls interfere with numerous plant physiological processes. One mechanism of action is their reactivity toward thiols of metabolites like cysteine and glutathione (GSH). This work aimed at better understanding these interaction

Externí odkaz: https://doaj.org/article/de80a2444371450d9c17170a8dd960a0

OPDAylation of Thiols of the Redox Regulatory Network In Vitro

Autor: Madita, Knieper, Lara, Vogelsang, Tim, Guntelmann, Jens, Sproß, Harald, Gröger, Andrea, Viehhauser, Karl-Josef, Dietz

cis-(+)-12-Oxophytodienoic acid (OPDA) is a reactive oxylipin produced by catalytic oxygenation of polyunsaturated α-linolenic acid (18:3 (ω − 3)) in the chloroplast. Apart from its function as precursor for jasmonic acid synthesis, OPDA serves a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::5e42ae9f8aade71d62cf837e0bc46baf
https://pub.uni-bielefeld.de/record/2962622

Biochemical Characterization of 13-Lipoxygenases of Arabidopsis thaliana

Autor: Daniel Maynard, Kamel Chibani, Sonja Schmidtpott, Thorsten Seidel, Jens Spross, Andrea Viehhauser, Karl-Josef Dietz

Publikováno v: International Journal of Molecular Sciences
Volume 22
Issue 19
International Journal of Molecular Sciences, Vol 22, Iss 10237, p 10237 (2021)

13-lipoxygenases (13-LOX) catalyze the dioxygenation of various polyunsaturated fatty acids (PUFAs), of which α-linolenic acid (LeA) is converted to 13-S-hydroperoxyoctadeca-9, 11, 15-trienoic acid (13-HPOT), the precursor for the prostaglandin-like

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::384c62a824d154ba8bac6cbf81afc79a
https://pub.uni-bielefeld.de/record/2957883

Attenuation of hydrogen peroxide-mediated oxidative stress byBrassica junceaannexin-3 counteracts thiol-specific antioxidant (TSA1) deficiency inSaccharomyces cerevisiae

Autor: Mrinal Kanti Bhattacharyya, Naveen Kumar Singh, Abhaypratap Vishwakarma, Andrea Viehhauser, Ahan Dalal, Triveni Gudla, Pulugurtha Bharadwaja Kirti, Karl-Josef Dietz, Kollipara Padmasree

Publikováno v: FEBS Letters. 588:584-593

Brassica juncea annexin-3 (BjAnn3) was functionally characterized for its ability to modulate H(2)O(2-)mediated oxidative stress in Saccharomyces cerevisiae. BjAnn3 showed a significant protective role in cellular-defense against oxidative stress and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4e18f62b62d797b370fd13cbf7a2799
https://doi.org/10.1016/j.febslet.2014.01.006