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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Jan 2015, 36 (1)                                                                                                             Back

nstantaneous and historical temperature effects on a-pinene

Effects of exogenous salicylic acid on growth characteristics and biochemical content of wheat seeds under arsenic stress


Fikriye Zengin*

Department of Science Education, Firat University, Elazig - 23119, Turkey

*Corresponding Author E-mail:



Publication Data

Paper received:

14 December 2012


Revised received:

26 December 2012


Re-revised received:

07 April 2013



10 July 2014



The present study illustrates the phytotoxic effect of As on wheat seedlings and pre-application of salicylic acid in alleviating toxic effect of arsenic. Wheat seedlings treated with different concentrations (50-400M) of arsenic decreased the germination rate (34.7% and 86.9%), root and coleptile length, fresh and dry weight of roots and coleoptile, chlorophyll (67%) and protein content (27.1%), while increased proline and MDA content. However, pretreatment with 1mM saliycilic acid partially alleviated the toxic effect of arsenic on germination parameters and significantly reduced the proline (181.2%) and MDA (80%) content thereby increasing chlorophyll and protein content in As stressed wheat plants (p<0.01 or p<0.05). The data suggests that saliycilic acid reduced the damaging effects generated by As and enhanced the tolerance of wheat plants to arsenic toxicity.   


 Key words


Arsenic toxicity, Chlorophyll, Germination, Proline, Salicylic acid, Wheet 



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