Biologia Plantarum

, Volume 49, Issue 1, pp 157–159

Salt tolerance of two aquatic macrophytes, Pistia stratiotes and Salvinia molesta

Article

DOI: 10.1007/s10535-005-7159-4

Cite this article as:
Upadhyay, R.K. & Panda, S.K. Biol Plant (2005) 49: 157. doi:10.1007/s10535-005-7159-4

Abstract

The physiological responses to NaCl salinity were investigated in two floating aquatic macrophytes, Pistia stratiotes L. and Salvinia molesta L. With the increasing NaCl concentration a decrease in chlorophyll and carotenoid contents was recorded in Salvinia as compared to Pistia. Also a greater increase in H2O2 accumulation and lipid peroxidation was observed in the shoot and root tissues of Salvinia as compared to Pistia. The superoxide dismutase, glutathione reductase, catalase and guaiacol peroxidase activities, and ascorbate and glutathione contents increased in Salvinia and Pistia shoot and root tissues in response to NaCl.

Additional key words

catalaseglutathione reductaseNaCl-salinityperoxidasesuperoxide dismutasethiobarbituric acid reactive substance

Abbreviations

APX

ascorbate peroxidase

CAT

catalase

DHAR

dehydroascorbate reductase

GPX

guaiacol peroxidase

GR

glutathione reductase

SOD

superoxide dismutase

TBARS

thiobarbituric acid reactive substance

Copyright information

© Institute of Experimental Botany 2005

Authors and Affiliations

  1. 1.Plant Biochemistry Laboratory, School of Life SciencesAssam (Central) UniversitySilcharIndia
  2. 2.Research Institute for BioresourcesOkayama UniversityKurashikiJapan