VEGETOS: An International Journal of Plant Research & Biotechnology
(Society For Plant Research)

Research Articles

A SOCIETY FOR PLANT RESEARCH PUBLICATION


Volume: 32, Issue: 4, December 2019


Print ISSN : 0970-4078.
Online ISSN : 2229-4473.
Website:www.vegetosindia.org
Pub Email: contact@vegetosindia.org
Page Visits: 31

Doi: 10.1007/s42535-019-00066-9
Doi Link: https://doi.org/10.1007/s42535-019-00066-9
First Page: 609
Last Page: 619
Published: 23 October, 2019

In vitro propagation, in vitro flowering, ex vitro root regeneration and foliar micro-morphological analysis of Hedyotis biflora (Linn.) Lam


Abstract:

Hedyotis biflora (Linn.) Lam is an important herb, used in the Indian and Chinese traditional systems of medicines. Indiscriminate harvesting of this plant resulted in decline of its population from the natural habitats. The present study reports effective micropropagation and in vitro flowering in H. biflora. Healthy plants were maintained in the greenhouse to collect fresh explants (nodal segments). Average 3.2 shoot bud/node with 88% shoot regeneration obtained on Murashige and Skoog’s (MS) medium with 2.0 mg L−1 6-benzylaminopurine (BAP) and additives like 50 mg L−1 of ascorbic acid and 25 mg L−1 each of arginine, adenine sulphate and citric acid. About 84.5 shoots, with 8.1 cm shoot length were obtained on MS basal medium supplemented with 1.0 mg L−1 BAP, 0.5 mg L−1 kinetin (Kin) and 0.1 mg L−1 indole-3 acetic acid (IAA) and additives. In vitro flowers were induced in 91% cultures (6.8 flowers per shoot) when the shoots were cultured on MS medium supplemented with 1.5 mg L−1 BAP and 0.1 mg L−1 IAA at 12-h photoperiods. In vitro raised shoots were rooted with the help of indole-3 butyric acid (IBA) via in vitro and ex vitro techniques. The micropropagated plants were acclimatized with 91% survival rate in the field. Upon transfer of plantlets from the in vitro to ex vitro environments, there were significant changes in stomata, vein-islets and raphids. These micro-morphological changes may help micropropagated plantlets to establish under the field conditions. The present protocol is suitable for large scale micropropagation, conservation and commercial production of this plant. The protocol of in vitro flowering could be useful in understanding the in vitro pollination biology of H. biflora.

Vegetos

Keywords:


In vitro flowering, Ex vitro rooting, n Hedyotis bifloran , Micro-morphological studies


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  63.  


Acknowledgements :



Authors are grateful to the Science and Engineering Research Board, Department of Science and Technology, Government of India (sanction number EMR/2016/007795) for providing financial support to their laboratory.


Author Information:



J. Revathi
Department of Botany, Kanchi Mamunivar Center for Postgraduate Studies, Puducherry, India

M. Manokari
Siddha Clinical Research Unit, Central Council for Research in Siddha, Chennai, India


R. Latha
Department of Botany, Kanchi Mamunivar Center for Postgraduate Studies, Puducherry, India

S. Priyadharshini
Department of Botany, Kanchi Mamunivar Center for Postgraduate Studies, Puducherry, India

Mafatlal M. Kher
P.G. Department of Biosciences, Sardar Patel University, Vallabh Vidyanagar, India

Mahipal S. Shekhawat
Department of Botany, Kanchi Mamunivar Center for Postgraduate Studies, Puducherry, India
smahipal3@gmail.com




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