Articles
MASS PROPAGATION OF ECHINACEA ANGUSTIFOLIA: A PROTOCOL REFINEMENT USING SHOOT ENCAPSULATION AND TEMPORARY IMMERSION LIQUID SYSTEM
Article number
629_53
Pages
409 – 414
Language
English
Abstract
Tissue culture of Echinacea angustifolia allows for selection and rapid multiplication of genetically superior clones.
In this study, temporary immersion liquid bioreactor (RITA® system), synthetic seed technology and semi-solid culture conditions were evaluated for shoot multiplication efficiency.
After 25 days of culture, the highest multiplication rate was observed in explants cultured in temporary immersion liquid system.
Previous reports on micropropagation of E. angustifolia have had low success rate in rooting.
Shoots were rooted under autotrophic conditions on sugar-free semi-solid media supplemented with 2.5 µM IBA and using synthetic seed technology by shoot encapsulation in calcium alginate gel cultured on MS medium supplemented with 2.6 µM NAA. Rooting response was noticed in three weeks with a success rate of 83%. Arbuscular mycorrhiza infection helped the acclimatization survival rate of rooted plantlets.
In this study, temporary immersion liquid bioreactor (RITA® system), synthetic seed technology and semi-solid culture conditions were evaluated for shoot multiplication efficiency.
After 25 days of culture, the highest multiplication rate was observed in explants cultured in temporary immersion liquid system.
Previous reports on micropropagation of E. angustifolia have had low success rate in rooting.
Shoots were rooted under autotrophic conditions on sugar-free semi-solid media supplemented with 2.5 µM IBA and using synthetic seed technology by shoot encapsulation in calcium alginate gel cultured on MS medium supplemented with 2.6 µM NAA. Rooting response was noticed in three weeks with a success rate of 83%. Arbuscular mycorrhiza infection helped the acclimatization survival rate of rooted plantlets.
Authors
H. Lata, E. Bedir, R.M. Moraes, Z. Andrade
Keywords
Echinacea, tissue culture, micropropagation, RITA® bioreactor
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