International Journal of Aquaculture, 2016, Vol.6, No.8 1-10
        
        
        
          1
        
        
          Research Article                                                     Open Access
        
        
          Micropropagation and
        
        
          in vitro
        
        
          flowering of an ornamental aquarium plant
        
        
          Lindernia antipoda
        
        
          (L.) Alston
        
        
          Jabir T., Sheeja George., Anjana Raj., Sree Lakshmi S., Aneykutty Joseph .
        
        
          Department of Marine Biology, Microbiology & Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kerala, India
        
        
          Corresponding author Email
        
        
        
        
           
        
        
        
          International Journal of Aquaculture, 2016, Vol. 6, No.8  doi
        
        
        
        
          Received: 29 Feb., 2016
        
        
          Accepted: 12 Apr., 2016
        
        
          Published: 26 Apr., 2016
        
        
          Copyright © 2016
        
        
          Jabir et al., This is an open access article published under the terms of the Creative Commons Attribution License, which permits
        
        
          unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
        
        
          Preferred citation for this article
        
        
          :
        
        
          Jabir T., Sheeja George., Anjana Raj., Sree Lakshmi S., Aneykutty Joseph.
        
        
          , 2016, Micropropagation and
        
        
          in vitro
        
        
          flowering of an ornamental
        
        
          aquarium plant
        
        
          Lindernia antipoda
        
        
          (L.) Alston, 6(8): 1-10 (doi
        
        
        
        
        
          Abstract
        
        
          Lindernia antipoda
        
        
          (L.) Alston is one of the valuable aquatic ornamental plants which have a bright potential in the
        
        
          aquarium trade. In the present study, a protocol for rapid shoot multiplication and
        
        
          in vitro
        
        
          flowering from axillary bud was developed.
        
        
          Half MS media with 1 mg/L benzylaminopurine (BAP) was the found to be the best medium for culture initiation and establishment.
        
        
          The effective medium for shoot multiplication was MS+1 mg/L BAP+0.2 mg/L NAA. In this media, 85% of the cultures exhibited
        
        
          multiple shoot proliferation. The highest shoot proliferation and shoot length were also acquired in this media. Plant showed
        
        
          highest in vitro flowering in MS medium supplemented 1 mg/L BAP and 0.2 mg/L α-Naphthalene acetic acid (NAA). All
        
        
          concentrations of NAA induced rooting. Hardening of
        
        
          in vitro
        
        
          cultured plantlets were attained through polythene propagator system
        
        
          and 90% of the plants survived, and it was successfully transformed in to an aquarium.
        
        
          Keywords
        
        
          Lindernia antipoda
        
        
          ; Aquarium plant; Micropropagation;
        
        
          in vitro
        
        
          flowering
        
        
          1 Introduction
        
        
          Lindernea antipoda
        
        
          (L.) Alston is an evergreen amphibian herbaceous plant belongs to the family Linderniaceae,
        
        
          found in Tropical Asia. It is a large and taxonomically difficult genus; most species are found in swamps and also
        
        
          found in temporarily submerged areas. They are mainly used for filtration and cleaning of water in canals and
        
        
          lakes. Some of the species belonging to the genus
        
        
          Lindernia
        
        
          are used as ornamental aquarium plants.
        
        
          L. antipoda
        
        
          (L.) produces small white flowers and bright green leaves and is widely used as an aquarium plant. Native range
        
        
          of
        
        
          Lindernea
        
        
          sp. is tropical and subtropical Asia from India and Sri Lanka, throughout Malaysia and eastward to
        
        
          northern Australia; apparently adventives further eastward (Smith, 1992). The systematic position of
        
        
          L. antipoda
        
        
          (L.) Alston is as follows.
        
        
          Kingdom: Plantae
        
        
          Division: Tracheophyta
        
        
          Class: Magnoliopsida
        
        
          Order: Lamiales
        
        
          Family: Linderniaceae
        
        
          Natural propagation of aquatic plant species is limited due to the production of small number of plants with a long
        
        
          cultivation period, disease and requirement of large space for propagation (Sulaiman, 2004).
        
        
          In vitro
        
        
          propagation
        
        
          of aquarium plants can solve many of these problems such as unreliable supply, over collection, variable plant
        
        
          quality and frequent losses from poorly characterized water transmitted diseases and destruction of endangered
        
        
          species (Kane et al., 1999; Sarasan et al., 2006). Hence, conservation and commercial production of
        
        
          Lindernia
        
        
          sp.
        
        
          in order to meet the market demand can be achieved
        
        
          via
        
        
          the development of efficient and economically viable
        
        
          micropropagation protocols.
        
        
          Moreover, the collection of plant materials from the wild resources can be reduced or prevented with the
        
        
          production of clonal propagated plants. Previous studies have reported the
        
        
          in vitro
        
        
          propagation protocols for some