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2012 | 34 | 1 |

Tytuł artykułu

Salt stress induction of some key antioxidant enzymes and metabolites in eight Iranian wild almond species

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The present work describes the changes in the activities of key antioxidant enzymes and the levels of some metabolites in relation to salt tolerance in eight wild almond species. All the species were exposed to four levels of NaCl (control, 40, 80 and 120 mM). Plant fresh biomass, α-, γ- and δ-tocopherol, total soluble proteins, malondialdehyde (MDAeq), H₂O₂, total phenolics, and the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) were analyzed in leaves of salt-stressed and non-stressed plants of the eight almond species. In all the species, salt stress significantly enhanced the activities of SOD and POD, levels of total phenolics and γ- and δ-tocopherols. High levels of salt stress significantly depressed the levels of total soluble proteins, MDA and CAT activity, while salt stress did not significantly affect leaf H₂O₂ contents. Regression analysis showed that the relationship between salt levels and total soluble proteins, CAT, γ-tocopherol, MDAeq, SOD and POD were statistically significant. Principal component analysis discriminated the almond species based on their degree of tolerance/sensitivity to saline conditions: Prunus reuteri and P. glauca were ranked as salt tolerant, P. lycioides and P. scoparia as moderately tolerant, and P. communis, P. eleagnifolia, P. arabica and P. orientalis as salt sensitive. The results could be used for selecting salt tolerant genotypes to be used as rootstocks for almond cultivation.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

34

Numer

1

Opis fizyczny

p.203-213,fig.,ref.

Twórcy

autor
  • Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrekord University, Shahrekord, P.O. Box 115, Iran
autor
  • Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrekord University, Shahrekord, P.O. Box 115, Iran
autor
  • Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrekord University, Shahrekord, P.O. Box 115, Iran
  • Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrekord University, Shahrekord, P.O. Box 115, Iran
autor
  • Dipartimento di Scienze dei Sistemi Colturali, Forestali e dell' Ambiente, Universita degli Studi della Basilicata, Via dell' Ateneo Lucano n.10, 85100 Potenza, Italy

Bibliografia

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Bibliografia

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