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Radiation Processed Carrageenan Improves Plant Growth, Physiological Activities, and Alkaloids Production in Catharanthus roseus L.


Affiliations
1 Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India
2 College of Arts and Applied Sciences, Dhofar University, 2509 Salalah, Oman
3 Botany Section,Women's College, Aligarh Muslim University, Aligarh 202 002, India
4 Radiation Technology Development Division, Bhabha Atomic Research Centre,Mumbai 400085, India
 

Catharanthus roseus (L.) G. Don (Apocynaceae) is a medicinal plant that produces indole alkaloids used in cancer chemotherapy. Commercially important antineoplastic alkaloids, namely, vinblastine and vincristine, are mainly present in the leaves of C. roseus. Gamma-rays irradiated carrageenan (ICR) has been proven as plant growth promoting substance for a number of medicinal and agricultural plants. Considering the importance of ICR as a promoter of plant growth and alkaloids production in C. roseus, a pot experiment was carried out to explore the effect of ICR on the plant growth, physiological activities, and production of anticancer alkaloids in C. roseus at 120 and 150 days after planting (DAP). Foliar application of ICR (at 0, 20, 40, 60, 80, and 100 mg L-1) significantly improved the performance of C. roseus. 80 mg L-1 of ICR enhanced the leaf yield by 29.2 and 35.4% and the herbage yield by 32.5 and 37.4% at 120 and 150 DAP, respectively, over the control. The spray of ICR at 80 mg L-1 increased the yield of vinblastine by 64.3 and 65.0% and of vincristine by 75.5 and 77.0% at 120 and 150 DAP, respectively, as compared to the control.
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  • Radiation Processed Carrageenan Improves Plant Growth, Physiological Activities, and Alkaloids Production in Catharanthus roseus L.

Abstract Views: 163  |  PDF Views: 15

Authors

M. Naeem
Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India
Mohd. Idrees
College of Arts and Applied Sciences, Dhofar University, 2509 Salalah, Oman
Tariq Aftab
Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India
M. Masidur Alam
Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India
M. Masroor A. Khan
Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India
Moin Uddin
Botany Section,Women's College, Aligarh Muslim University, Aligarh 202 002, India
Lalit Varshney
Radiation Technology Development Division, Bhabha Atomic Research Centre,Mumbai 400085, India

Abstract


Catharanthus roseus (L.) G. Don (Apocynaceae) is a medicinal plant that produces indole alkaloids used in cancer chemotherapy. Commercially important antineoplastic alkaloids, namely, vinblastine and vincristine, are mainly present in the leaves of C. roseus. Gamma-rays irradiated carrageenan (ICR) has been proven as plant growth promoting substance for a number of medicinal and agricultural plants. Considering the importance of ICR as a promoter of plant growth and alkaloids production in C. roseus, a pot experiment was carried out to explore the effect of ICR on the plant growth, physiological activities, and production of anticancer alkaloids in C. roseus at 120 and 150 days after planting (DAP). Foliar application of ICR (at 0, 20, 40, 60, 80, and 100 mg L-1) significantly improved the performance of C. roseus. 80 mg L-1 of ICR enhanced the leaf yield by 29.2 and 35.4% and the herbage yield by 32.5 and 37.4% at 120 and 150 DAP, respectively, over the control. The spray of ICR at 80 mg L-1 increased the yield of vinblastine by 64.3 and 65.0% and of vincristine by 75.5 and 77.0% at 120 and 150 DAP, respectively, as compared to the control.