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Pregled bibliografske jedinice broj: 787112

Poglavlje/Rad u knjizi

Autori: Štolfa, Ivna; Žuna Pfeiffer, Tanja; Špoljarić, Dubravka; Teklić, Tihana; Lončarić, Zdenko
Naslov: Heavy Metal-Induced Oxidative Stress in Plants: Response of the Antioxidative System
( Heavy Metal-Induced Oxidative Stress in Plants: Response of the Antioxidative System )
Knjiga: Reactive Oxygen Species and Oxidative Damage in Plants Under Stress
Urednik/ci: Gupta, K. Dharmendra ; Palma, M. Jose ; Corpas, J. Francisco
Izdavač: Springer
Grad: Cham
Godina: 2015
Raspon stranica:: 127-163
Ukupni broj stranica u knjizi:: 370
ISBN: 978-3-319-20420-8
Ključne riječi: Heavy metals ; ROS ; Antioxidants
( Heavy metals ; ROS ; Antioxidants )
Sažetak:
Heavy metals (HMs) are among the most important environmental pollutants, particularly in areas with strong anthropogenic pressure. For plants, high levels of HMs are extremely toxic since they may act in several different modes: by the direct inhibition of plant growth and biosynthetic pathways or through the production of reactive oxygen species (ROS). Certain metals generate ROS due to their involvement in redox reactions like Fenton and/or Haber–Weiss reactions, while metals without redox capacity enhance ROS production by reducing the antioxidant glutathione pool, activating calcium-dependent systems and influencing iron- mediated processes. ROS production affects lipids, proteins, and DNA and consequently leads to cell death. In response, plants are equipped with complex enzymatic and nonenzymatic mechanisms involved in antioxidative defense to neutralize HM toxicity, and the main components of these mechanisms will be reviewed in this chapter.
Izvorni jezik: eng
Kategorija: Pregledni
Znanstvena područja:
Biologija
Upisao u CROSBI: Ivna Štolfa (istolfa@biologija.unios.hr), 23. Stu. 2015. u 14:17 sati



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