Soil salinity alters growth, chlorophyll content, and secondary metabolite accumulation in Catharanthus roseus

Cheruth Abdul Jaleel, Beemarao Sankar, Ramalingam Sridharan, Rajaram Panneerselvam

Research output: Contribution to journalArticlepeer-review

140 Citations (Scopus)

Abstract

The effect of salinity on growth, photosynthetic pigment content, and alkaloid secondary metabolite accumulation were studied in an economically important medicinal plant, Catharanthus roseus (L.) G. Don., under pot culture conditions. Plants were treated with different concentrations of NaCl, (e.g. 50 and 100 mM) 30, 45, 60, and 75 days after sowing (DAS). The plants were uprooted randomly 90 DAS to analyse growth, and chlorophyll and alkaloid content. Salinity affected all the morphological parameters and decreased growth performance. At low salinity regimes, a slight decrease was noted in chlorophyll a and b, and total chlorophyll content, but under high salinity conditions a significant reduction in the content of these pigments was observed. The chlorophyll a:chlorophyll b ratio also varied significantly under salinity stress. Alkaloid content increased under saline soil conditions.

Original languageEnglish
Pages (from-to)79-83
Number of pages5
JournalTurkish Journal of Biology
Volume32
Issue number2
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • Alkaloid
  • Catharanthus roseus
  • Chlorophyll
  • Growth
  • Salinity

ASJC Scopus subject areas

  • Microbiology
  • Physiology
  • Molecular Biology
  • Genetics
  • Agricultural and Biological Sciences(all)
  • Cell Biology

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