Water, Air, and Soil Pollution

, Volume 188, Issue 1–4, pp 171–179 | Cite as

Sodium Fluoride Induced Growth and Metabolic Changes in Salicornia brachiata Roxb

  • Muppala P. ReddyEmail author
  • Meenakshi Kaur


Fluoride, a common phytotoxic air, water and soil pollutant is commonly released to the environment by a number of industrial processes. Agricultural soils high in fluoride are common due to long term accumulation of fluoride from multi-sources and extensive application of phosphate fertilizers. The effect of sodium fluoride (0, 50,100,150 mM) on growth, pigments content, changes in biochemical parameters, along with fluoride and other ions accumulation was investigated in Salicornia brachiata grown in solution cultures under controlled conditions. With fluoride treatment growth as fresh or dry mass accumulation increased marginally. However, higher concentrations decreased the biomass and shoot tip became blunt; margin of the shoot changed its colour to reddish brown and developed necrotic spots. Photosynthetic pigments (chlorophylls and carotenoids) content decreased, while, anthocyanin content increased significantly with fluoride treatment. Peroxidase (POX), superoxide dismutase (SOD), ATPase and acid phosphate activities were negatively regulated. In addition F, Na+, Mn2+ and Fe2+ ions concentration increased while, K+, Ca2+ and Mg2+ contents decreased with fluoride treatment. To our knowledge this is the first report on fluoride tolerance in a marshy halophytes using as high as 150 mM concentration and the results suggest that S. brachiata is a moderately fluoride tolerant annual halophyte and may be useful to vegetate the fluoride contaminated marshy lands.


Fluoride Ion accumulation Halophyte Pigments Salicornia brachiata Necrotic spots 



The authors acknowledge Director Dr. P. K. Ghosh for encouragement and facilities, Dr. J.S. Patolia, Discipline Coordinator for constant support and Dr. K. M. Popat for help in fluoride quantification.


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Copyright information

© GovernmentEmployee: Central Salt and Marine Chemicals Research Institute(CSIR), Bhavnagar  2007

Authors and Affiliations

  1. 1.Discipline of PhytosalinityCentral Salt and Marine Chemicals Research InstituteBhavnagarIndia

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