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2007 | 29 | 3 |
Tytuł artykułu

Responses of antioxidant defense system of Catharanthus roseus (L.) G. Don. to paclobutrazol treatment under salinity

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The effect of paclobutrazol, a plant growth regulator, on antioxidant defense system was investigated in Catharanthus roseus (L.) G. Don. plants subjected to NaCl stress. The growth parameters were significantly reduced under 80 mM NaCl treatment; however, this growth inhibition was less in paclobutrazol-treated (15 mg l⁻¹ plant⁻¹) plants. The non-enzymatic antioxidants ascorbic acid and reduced glutathione were affected under NaCl stress and they increased significantly under paclobutrazol treatment when compared to NaCl treated as well as control plants (P ≤ 0.05). The activity of antioxidant enzyme ascorbate peroxidase showed a significant enhancement under salinity stress. The catalase activity decreased in roots of NaCl-treated plants, but recovered with paclobutrazol treatment. The results suggested that paclobutrazol have significant role in contributing salt stress tolerance of C. roseus by improving the components of antioxidant defense system.
Słowa kluczowe
EN
Wydawca
-
Rocznik
Tom
29
Numer
3
Opis fizyczny
p.205-209,fig.,ref.
Twórcy
autor
  • Division of Plant Physiology, Department of Botany, Annamalai University, Annamalainagar 608 022, Tamil Nadu, India
autor
  • Division of Plant Physiology, Department of Botany, Annamalai University, Annamalainagar 608 022, Tamil Nadu, India
  • Division of Plant Physiology, Department of Botany, Annamalai University, Annamalainagar 608 022, Tamil Nadu, India
  • Division of Plant Physiology, Department of Botany, Annamalai University, Annamalainagar 608 022, Tamil Nadu, India
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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