4.7 Article

Conservation and storage of Curcuma amada Roxb. synseeds on Luffa sponge matrix and RAPD analysis of the converted plantlets

Journal

INDUSTRIAL CROPS AND PRODUCTS
Volume 36, Issue 1, Pages 383-388

Publisher

ELSEVIER
DOI: 10.1016/j.indcrop.2011.10.031

Keywords

Anti-fungal agent; Curcuma amada; Luffa sponge; RAPD; Synthetic seed; Zingiberaceae

Funding

  1. Council of Scientific and Industrial Research (CSIR), New Delhi, India

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Curcuma amada Roxb. (family Zingiberaceae), is gaining global attention as potential source of new drug molecule(s) as it is credited with compounds having remarkable pharmacological properties. Recognizing the risk of loss of genetic variability of C. amada in response to imprudent exploitation of the natural resources coupled with unsystematic cultivation practices, preservation of its genetic resources has attracted the current research attention. The present study exploited the multifarious properties of Luffa sponge (i.e. sound physical strength, stability in texture/shape over wide pH range and repeated autoclaving, cost effective availability, etc.) as a novel matrix for synthetic seed conservation. In this study, we have evaluated the consequences of the presence of two fungicides, namely - bavistin and rosebengal, in the gel matrix as well as in the Luffa sponge for conservation of contamination free germplasm of C. amada. A maximum of 50% and 75% regrowth could be recorded amongst rosebengal and bavistin containing synthetic seeds respectively after 4 weeks of plating on plant growth regulator-free MS medium. Further growth of the encapsulated microshoots was significantly impeded by the presence of rosebengal within the synthetic seeds. On the contrary, the bavistin containing synthetic seeds demonstrated five times better regeneration ability to contamination-free shoots. A total of 78% survival was achieved upon transfer of these healthy plantlets to glass-house. RAPD fingerprinting revealed 84.62% genetic similarity between randomly selected synthetic seed derived plantlets. This report strengthened the vital conservation approach of C. amada using inexpensive Luffa sponge as storage matrix and bavistin for eradication of contaminations. (C) 2011 Elsevier B.V. All rights reserved.

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