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Peer - Reviewed Journal
Micropropagation of rare orchid, Eulophia epidendraea (Retz.)Fischer
M. Maridass, G. Raju, R. Mahesh and K. Muthuchelian
Ethnomedicinal plant knowledge of Tribe Muthuvas of Mannavan Shola Forest of Southern Western Ghats, Kerala, India
Binu Thomas, A. Rajendran, U. M. Chandrashekara and R.Sivalingam
In vitro propagation of Commelina ensifolia R.Br.
R. Mahesh, K. Muthuchelian, M. Maridass and G. Raju
Chasmophytes: the Potential plants for Rock gardening, from Velliangiri Hills of Southern Western Ghats, Tamil Nadu, India
Binu Thomas, Rajendran, A. and V. Aravindhan
Volume No. 1(1) September, 2012
Table and Contents
A simple and reliable procedure for in vitro clonal propagation of orchid Eulophia epidendraea was studied. The explants of pseudo bulbs of E. epidendraea were cultured on Murashige and Skoog medium (MS) and media supplemented with different plant growth regulators (BAP, NAA and IBA). In the present study, the highest shoot number formed on the MS medium supplemented with 0.5 mg l-1 BAP + 0.25 mg l-1 IBA (43.75 shoots / 20 explant) and multiple shoot induction of best auxin combinations of 0.5 IBA mg/L-1 + 0.1 NAA mg/L-1 were observed. The plantlets of E. epidendraea were acclimatized and transplanted to greenhouse and more than 89% survival rate was observed.
Key words: Eulophia epidendraea (Retz.) Fischer, Micropropagation
Abbreviation: BAP: 6-benzylaminopurine; IBA: indole-3-butyric acid; NAA - 1-naphthaleneacetic acid ; MS - Murashige and Skoog Medium
Abstract
Commelina ensifolia R.Br. is a rare edible herb belonging to family Commelinaceae. In the present study, in vitro regeneration of C. ensifolia. from nodal explants has been established. Nodal explants were cultured on MS medium supplemented with different combinations of BAP, NAA and IBA. The nodal explant of C. ensifolia is responsible for root induction, mean number of roots and root length and mean number of elongated shoots and shoot length. In the observed results, C. ensifolia 90% showed root regeneration responses in IBA 3.0 mg/L-1 and NAA 1.0 mg/L-1. A well developed micro shoots and rooting media for complete regeneration of Commelina ensifolia has been developed in the present study.
Abbreviations: Commelina ensifolia, micropropagation; BAP: 6-benzylaminopurine; NAA:1- naphthaleneacetic acid IBA: indole-3-butyric acid; MS: Murashige and Skoog Medium.