Plant regeneration through somatic embryogenesis in two cultigroups of
Pineapple (Ananas comosus L.)
Abstract
Pineapple production is mostly constrained by unavailability of
high-performance suckers. However, somatic embryogenesis (SE) have been
revealed the most rapid and controllable method for Pineapple
propagation than conventional sucker production methods. The aim of this
study was to evaluate the responses of two cultivars of pineapple
regenerated through somatic embryogenesis. Thus, calli were induced from
crown leaf and plantlets leaf of Smooth Cayenne and Sugar Loaf
cultivars. Murashige and Skoog base medium supplemented with vitamins B5
and different in hormonal combinations: Auxins / Cytokins. BAP and / or
2,4-D have been added to base medium for calli maturation and BAP and
GA3 for plant regeneration. The results indicated a significant
influence of type of explant and copper on callus induction in pineaple
cultivars. Likewise, The medium MS with growth regulator combination NAA
(0.5 mg/l) + BAP (1mg / l (BAP) has a highly significant influence with
8.8 mature somatic embryos. Also, the growth regulator combinations and
the cultivars have significantly influenced somatic embryos regeneration
with a high rate of 55.25% shoots by using the hormonal combination BAP
(3 mg/l) + GA3 (2 mg/l) for the smooth Cayenne. The protocol developed
is a key study for successful mass propagation of the pineapple and
genetics transformation of pineapple.