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Mutation in Meristematic Cell of Calendula officinalis Flower (Inflorescence) Due to Rootex Hormone

Somendra Kumar Kulshreshtha


Calendula officinalis is a member of the family Compositae (Asteraceae) known as Pot-Marigold. It is widely used as an ornamental, cosmetics and medicinal plant. The plant has been used to identify the mutations in the meristematic cells due to exposure of rootex hormone. This hormone helps in enhancement of seed germination, stimulation of vegetative growth and development of shoot of C. officinalis plant. The seeds of C. officinalis species have been collected from the local nursery of Etah, Agra, Bareilly and Allahabad (Prayagraj) district of Uttar Pradesh, India. Approximately 45 g out of 50 g of seeds were germinated after the treatment of 10 g rootex hormone. It has been observed that the mutation has been generated in meristematic cell of thalamus of C. officinalis flower (inflorescence) due to chemicals present in polluted soil and water, rootex hormones and foggy environment. As a result of the mutation, flowering was developed into modified shoot or in another words, the secondary inflorescence has been developed above the first inflorescence. This type of development is popularly known as monstrous development.
Keywords: Calendula officinalis, chemical, meristematic cell, mutation, secondary flower (inflorescence)

Cite this Article
Somendra Kumar Kulshreshtha. Mutation in
Meristematic Cell of Calendula officinalis
Flower (Inflorescence) Due to Rootex
Hormone. Research & Reviews: Journal of
Botany. 2019; 8(3): 1–4p.


Calendula officinalis ,meristematic cell ,mutation ,chemical , secondary flower (inflorescence),

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