NDLI: Consequences of copper treatment on pigeon pea photosynthesis, osmolytes and antioxidants defense

Content Provider	Springer Nature Link
Author	Sharma, Poonam Sirhindi, Geetika Singh, Anil Kumar Kaur, Harpreet Mushtaq, Ruqia
Copyright Year	2017
Abstract	An attempt was made to explore the effect of copper sulphate treatment on growth, photosynthesis, osmolytes and antioxidants in 15 days old seedlings of C. cajan (Pigeonpea). C. cajan seedlings were grown in 0, 1, 5 and 10 mM concentrations of copper sulphate in petriplates lined with Whatman filter paper for 15 days. Root length and shoot length was decreased in a dose dependent manner with highest decrease of 82.80 and 45.92% in 10 mM Cu stress. Photosynthetic efficiency (qP, qN and Y) was decreased in a dose dependent manner whereas NPQ was increased in 1 and 5 mM and decreased in 10 mM Cu. Photosynthetic pigments viz total chlorophyll and carotenoids were increased in low concentrations and decreased in high concentrations of Cu. Osmolytes such as proline, glycine betaine and sugars were found to be increased in a dose dependent manner. Similarly antioxidants such as superoxide dismutase and catalase increased to 129.17 and 169.7%, respectively under Cu stress. Vitamin C and vitamin E was also increased in different concentrations of Cu to a significant level. It can be concluded from the present study that C. cajan can tolerate Cu stress up to 5 mM by adjusting the proportion of proline, glycine betaine, sugars and vitamins along with increasing the activity of some of the antioxidant enzymes.
Starting Page	809
Ending Page	816
Page Count	8
File Format	PDF
ISSN	09715894
Journal	Physiology and Molecular Biology of Plants
Volume Number	23
Issue Number	4
e-ISSN	09740430
Language	English
Publisher	Springer India
Publisher Date	2017-08-22
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Photosynthesis Oxidative stress Antioxidants Osmolyte Pigeonpea Plant Sciences Plant Physiology Biological and Medical Physics, Biophysics Cell Biology
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Molecular Biology

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