%0 Journal Article
%T Effect of Jasmonic Acid on Photosynthetic Pigments and Stress Markers in <i>Cajanus cajan</i> (L.) Millsp. Seedlings under Copper Stress
%A Sharma Poonam
%A Sirhindi Geetika
%A Harpreet Kaur
%J American Journal of Plant Sciences
%P 817-823
%@ 2158-2750
%D 2013
%I Scientific Research Publishing
%R 10.4236/ajps.2013.44100
%X <p class=\"MsoNormal\">
	<span lang=\"EN-IN\"><span style=\"font-family:Verdana;\">Jasmonates are class of plant growth regulators act as signal molecule
that intercede various components in physiological and metabolic regulation,
stress responses and possibly communication through signal transduction.
Oxidative stress due to heavy metal exposure stimulates synthesis and activity
of antioxidant metabolites and enhances antioxidant enzyme activities that
could protect plant tissues. The aim of this study was to investigate the
exogenous effect of JA at seed level which can transduce throughout seedling
growth and regulate antioxidant activities such as superoxide dismutase (SOD;
EC </span><st1:chsdate year=\"1899\" month=\"12\" day=\"30\" islunardate=\"False\" isrocdate=\"False\" w:st=\"on\"><span style=\"font-family:Verdana;\">1.15.1</span></st1:chsdate><span style=\"font-family:Verdana;\">.1) and guaiacol peroxidase
(POD; EC 1.11.1.7) in 12 day</span></span><span lang=\"EN-IN\" style=\"font-family:Verdana;\">s</span><span lang=\"EN-IN\"><span style=\"font-family:Verdana;\"> old seedlings of pigeon pea (</span><i><span style=\"font-family:Verdana;\">Cajanus
cajan</span></i><span style=\"font-family:Verdana;\"> (L.) Millsp.) in presence and/or absence of copper. The activity of
SOD and POD increased significantly in presence of Cu</span><span style=\"line-height:20px;font-family:Verdana;\"><sup>2+</sup></span><span style=\"font-family:Verdana;\"> after seed
priming with JA. JA also helps in chlorophyll and carotenoid accumulation and
neutralizes the toxic effect of Cu</span><span style=\"line-height:20px;font-family:Verdana;\"><sup>2+</sup></span><span style=\"font-family:Verdana;\"> on seedlings. This is the first
report of JA effect on photosynthetic pigment accumulation and H</span><span style=\"line-height:20px;font-family:Verdana;\"><sub>2</sub></span><span style=\"font-family:Verdana;\">O</span><span style=\"line-height:20px;font-family:Verdana;\"><sub>2</sub></span><span style=\"font-family:Verdana;\"> mitigating enzymes </span><i><span style=\"font-family:Verdana;\">i.e. </span></i><span style=\"font-family:Verdana;\">SOD and POD
and it could be recommended that seed priming with JA help in ameliorating
toxic effect of Cu</span><span style=\"line-height:20px;font-family:Verdana;\"><sup>2+</sup></span></span><span lang=\"EN-US\" style=\"font-family:Verdana;\">.</span><span lang=\"EN-US\"><o:p></o:p></span> 
</p>
%K Jasmonic Acid
%K Copper Sulphate
%K Lipid Peroxidation
%K Superoxide Dismutase
%K Guaiacol Peroxidase
%K Total Chlorophyll
%K Carotenoids
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=29827