Antioxidant potential and indole alkaloid profile variations with water deficits along different parts of two varieties of Catharanthus roseus

C. Abdul Jaleel, R. Gopi, P. Manivannan, M. Gomathinayagam, R. Sridharan, R. Panneerselvam

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

The variations in antioxidant potentials and indole alkaloid content were studied in the present investigation, in two varieties (rosea and alba) of Catharanthus roseus, an important herb used in traditional as well as modern medicine, exposed to water deficit stress. The antioxidant and alkaloid profiles were estimated from root, stem, leaf, flowers and pods. The antioxidant potentials were examined in terms of non-enzymatic antioxidant molecules and activities of antioxidant enzymes. The non-enzymatic antioxidant molecules studied were ascorbic acid (AA), α-tocopherol (α-toc) and reduced glutathione (GSH). The estimated antioxidant enzymes were superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), peroxidase (POX) and polyphenol oxidase (PPO). The antioxidant concentrations and activities of antioxidant enzymes were high under water deficit stress in all parts of the plants. Indole alkaloid content was high in the roots of rosea variety in response to stress when compared to alba variety.

Original languageEnglish
Pages (from-to)312-318
Number of pages7
JournalColloids and Surfaces B: Biointerfaces
Volume62
Issue number2
DOIs
Publication statusPublished - Apr 1 2008
Externally publishedYes

Keywords

  • Alba
  • Antioxidant
  • Catharanthus roseus
  • Indole alkaloid
  • Rosea
  • Traditional medicine
  • Water deficit stress

ASJC Scopus subject areas

  • Biotechnology
  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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