Author(s): Janaki Subramanyan, Veena Beri, Barha Sajid, Charvi Khanna, Durriya Samad, Nishika, Rishav Mangar
Authors Affiliations:
1D.S. Kothari Centre for Research and Innovation in Science Education, Miranda House,
University of Delhi, Delhi, India
2 Former Professor, Department of Botany, Miranda House, University of Delhi, Delhi, India
3 Assistant Professor, Department of Botany, Miranda House, University of Delhi, Delhi, India
DOIs:10.2015/IJIRMF/202507020 | Paper ID: IJIRMF202507020
Abstract: The flowers of Combretum indicum are with white corolla at anthesis and gradually turn deep pink passing through the pale pink and intermediate pink stages. The principal anthocyanin in the petals is cyanidin 3-O-glucoside. The plant is dichogamous and self-incompatible and the flowers attract different pollinators at the different colour stages. In the present study catalase, oxidase and peroxidase activities have been compared using aqueous extracts prepared from the corolla at the four identified colour stages. Catalase activity was highest in the white stage and decreased and remained nearly the same at the following stages. This showed that catalase had an important role as an antioxidant enzyme in detoxification at the initial stage of flower development. Oxidase activity was maximum at the intermediate pink stage and marginally less at the remaining stages. Interestingly, peroxidase activity was not detected at any developmental stage. We suggest that the cells are protected from oxidative damage primarily by the enzymatic antioxidant catalase at the white stage, and by oxidase and anthocyanin, a nonenzymatic antioxidant, at the later developmental stages thus ensuring that the flower is maintained till pollination.
Â
Â
Key Words: Combretum indicum, catalase, oxidase, peroxidase, anthocyanin, antioxidant.
Janaki Subramanyan, Veena Beri, Barha Sajid, Charvi Khanna, Durriya Samad, Nishika, Rishav Mangar (2025); A comparative study on certain enzymes in flowers of Rangoon creeper (Combretum indicum) at different stages of maturity, International Journal for Innovative Research in Multidisciplinary Field, ISSN(O): 2455-0620, Vol-11, Issue-7, Pp. 130-136.     Available on –  https://www.ijirmf.com/
