EFFECT OF CHROMIUM ON IN-VITRO GROWTH AND ANTIOXIDANT POTENTIAL OF DIANTHUS CARYOPHYLLUS L.Abstract
Catalase, guaiacol peroxidase and polyphenol oxidase are antioxidant enzymes that are important in the metabolism of reactive oxygen species and can be induced by environmental stresses including chromium (Cr), heavy metal toxic to living organisms. In-vitro regenerated shoots of carnation (Dianthus caryophyllus L.) were exposed to K2Cr2O7, and the activities of these antioxidant enzymes were analyzed. A significant reduction in the POD activity was observed at 2nd week of culture, followed by a slight increase in the activity in the 4th week of culture. Maximum PPO activity was detected during the 3rd week of culture, which was comparable to the control cultures. A significant reduction in CAT activity was found in the 4th week. The chlorophyll content did not change significantly in the shoot buds developed up to 4th week of culture.
S. Purohit *, S. Gupta and R. Jain
Department of Botany, The IIS University, Jaipur, Rajasthan, India.
11 September 2019
27 December 2019
17 August 2020
01 September 2020