TITLE:
Plantlets Regeneration via Somatic Embryogenesis from the Nucellus Tissues of Kinnow Mandarin (Citrus reticulata L.)
AUTHORS:
Mubashir Hussain, Naveed Iqbal Raja, Muhammad Iqbal, Anam Iftikhar, Huma Mehreen Sadaf, Sidra Sabir, Muhammad Asim Sultan, Muhammad Nasim Ashraf Faz
KEYWORDS:
Tissue Culture, MS Media, Citrus, Nucellus Tissue, Callogenesis, Somatic Embryos
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.7 No.6,
April
20,
2016
ABSTRACT: Studies were initiated to
explore the role of nucellus tissues and growth regulators in plantlets regeneration
via somatic embryogenesis of Kinnow mandarin [Citrus reticulata L. (Blanco)]. Nucellus tissues were cultured
on MS medium supplemented with different concentrations and combinations of auxins,
cytokinins and malt extract for primary callus induction. The best response for
primary callus induction (90%) was obtained when MS medium was supplemented with
5 mg/l 2,4-D and 500 mg/l malt extract. Best results for embryogenic callus induction
(80%) were obtained in C8 medium. The induction of somatic embryos was
highest when MS medium was supplemented with 1 mg/l BAP and maturation of somatic
embryos occurred when MS medium was supplemented with 5 mg/l 2,4-D and 1 mg/l BAP.
Maximum plantlets were regenerated (92%) from the somatic embryos on half strength
MS medium with no hormones. The plantlets were successfully acclimatized in different
potting mixtures and highest survival rate (100%) was achieved in potting mixture
containing sand and peat moss (2:1).