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Antioxidative-related enzyme activity in Alyssum markgrafii shoot cultures as affected by nickel level

100%

Stanisavljevic N., Savic J., Jovanovic Z., Miljus-Djukic J., Radovic S., Vinterhalter D., Vinterhalter B.

Acta Physiologiae Plantarum

2012

tom 34

nr 5

Shoot cultures of rare Balkan hyperaccumulating species Alyssum markgrafii were subjected to high nickel concentrations of 1, 3, 5, and 8 mM. The effects of graded nickel concentrations on toxicity, pigments, and several components of plant antioxidative defense system were characterized. Toxic effects of excess nickel were observed through slower growth and biomass decrease, together with increased reactive oxygen species (ROS) production and lipid peroxidation. Nickel exposure decreased chlorophyll a, b, total chlorophyll as well as carotenoid concentration. Addition of sodium benzoate, potent ROS scavenger, showed concentration-dependent disturbing effect on nickel hyperaccumulation, lowering the content of accumulated nickel in A. markgrafii shoots. General reducing power represented by low molecular weight antioxidants and phenols was inversely correlated with nickel concentration. Among the investigated antioxidative enzymes, POD seems to play important role in ROS level regulation upon excessive nickel in medium.

Fingerprinting of the antioxidant status in Alyssum markgrafii shoots during nickel hyperaccumulation in vitro

84%

Stanisavljevic N., Savic J., Javanovic Z., Miljus-Dukic J., Sencanski J., Simonovic M., Radovic S., Vinterhalter D., Vinterhalter B.

Acta Physiologiae Plantarum

2018

tom 40

nr 06

Ograniczanie wyników

2 Acta Physiologiae Plantarum

2 Radovic S.

2 Savic J.

2 Stanisavljevic N.

2 Vinterhalter B.

2 Vinterhalter D.

1 Javanovic Z.

1 Jovanovic Z.

1 Miljus-Djukic J.

1 Miljus-Dukic J.

1 Sencanski J.

1 Simonovic M.

1 2018

1 2012

Wyniki wyszukiwania

Antioxidative-related enzyme activity in Alyssum markgrafii shoot cultures as affected by nickel level

Fingerprinting of the antioxidant status in Alyssum markgrafii shoots during nickel hyperaccumulation in vitro