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Your search for articles by authors with the surname Sakpere has found 2 articles.

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Year Vol.
(Issue) Pages Author(s) Title

2007 30 108-116 A. M. A. Sakpere, O. Adedeji Micropropagation of two Caladium species (Buy)
ABSTRACT: Great differences occur in cell division and regenerative capacity between plants even within a single species. Therefore difference in callus induction and plant regeneration abilities of two Caladium species - Caladium bicolor and Caladium humboldtii was studied by culturing them on different combinations of growth regulators. Caladium humboldtii was found to be the more responsive genotype for callus induction while Caladium bicolor was the more responsive genotype for plant regeneration. Roots and shoots were more readily generated on corm explants in combinations of Kinetin and Naphtalene Acetic Acid (NAA) than in media containing different concentrations of 2,4-dichlorophenoxy acetic acid (2,4-D) and 1 mg/L Kinetin. Callus was generated on tubers of both species on media supplemented with 0.8 mg/L 2,4-D and 1 mg/L Kinetin.

2007 30 117-123 A. M. A. Sakpere, O. Adedeji Somaclonal variation and its effect on foliar epidermal characters of Caladium humboldtii Schott (Buy)
ABSTRACT: The ornamental value of Caladium species cannot be overemphasized and tissue culture is increasingly being employed in their propagation. Somaclonal variation is also exploited for the generation of new cultivars for the ornamental market. These variations essentially affect leaf morphology. Therefore, to see if there are corresponding anatomical differences, foliar epidermal studies were carried out on parent plant, Caladium humboldtii Schott, and a somaclonal variant (c. humboldtii 'Sakpere') derived from tuber explants cultured on full strength Murashige & Skoog's (962) medium supplemented with 3% (w/v) sucrose and 0.4 mg/L 2,4-D combined with 1.0 mg/L kinetin. Morphological differences observed were in the shape and colour of leaves of the in vitro derived plantlets. Foliar epidermal studies revealed significant differences in size of epidermal cells, stomatal index and stomatal size of the parent plant and the somaclonal variant. Circular-shaped stomata were encountered in C. humboldtii, these were sparse to absent in C. humboldtii 'Sakpere'.