نتایج جستجو برای: direct somatic embryogenesis
تعداد نتایج: 476362 فیلتر نتایج به سال:
This study aimed to investigate the effects of certain nutrient medium types enhanced with plant-growth regulators on direct inductionof somatic embryogenesis in vegetative strains produced and propagated from a tissue culture Digitalis purpurea. The results showthat MS was superior other tested media-B5, LS, 5C01—in terms days required initiate somaticembryogenesis induction rate. In contrast,...
Induction of somatic embryogenesis in absence of exogenous auxin can clarify some basic concepts of somatic embryogenesis. Explants from leaf and petiole of Cucumber (Cucumis sativus) were used in this experiment for somatic embryogenesis using three different modified B5 basal media; boron and 2,4-D but no IAA as control (I), boron and IAA but no 2,4-D (II) and no boron, 2,4-D and IAA (III). ...
In vitro regeneration of two cultivars of carnation, namely, ‘Nelson’ and ‘Impulse’ was studied through direct somatic embryogenesis. Somatic embryos were formed directly on petal explants cultured on Murashige and Skoog (MS) medium containing different concentrations (0.2, 0.5, 1, 2, 4, 6 mg 1-1) of picloram. Maximum embryogenesis was obtained with 1 and 2 mg/l picloram. Globular shaped embryo...
plant tissue culture is an alternative method of commercial propagation and is being used widely for the commercial propagation of a large number of plant species, including many medicinal plants. somatic embryogenesis is a process by which asexual or somatic cells are induced to form embryos in culture. somatic embryogenesis is a multi-step regeneration process starting with formation of pro-e...
In vitro regeneration of two cultivars of carnation, namely, ‘Nelson’ and ‘Impulse’ was studied through direct somatic embryogenesis. Somatic embryos were formed directly on petal explants cultured on Murashige and Skoog (MS) medium containing different concentrations (0.2, 0.5, 1, 2, 4, 6 mg 1-1) of picloram. Maximum embryogenesis was obtained with 1 and 2 mg/l picloram. Globular shaped embryo...
Plant tissue culture is an alternative method of commercial propagation and is being used widely for the commercial propagation of a large number of plant species, including many medicinal plants. Somatic embryogenesis is a process by which asexual or somatic cells are induced to form embryos in culture. Somatic embryogenesis is a multi-step regeneration process starting with formation of pro-e...
In vitro propagation of C. morifolium cv. ‘Homa’ and cv. ‘Delkash’ and wild C. coccineum via direct and indirect organogenesis and somatic embryogenesis were investigated. BAP at 0, 1, 2 and 3 mg l-1 or NAA at 0, 0.05, 0.1 and 0.2 mg l-1 concentrations were used to induce direct and indirect organogenesis of shoot tip explants. To study the callu...
A direct somatic embryogenesis protocol was developed for four cultivars of Nicotiana species, by using leaf disc as an explant. Direct somatic embryogenesis of Nicotiana by using BAP and IAA has not been investigated so far. This method does not require formation of callus tissues which leads to somaclonal variations. The frequency of somatic embryogenesis was strongly influenced by the plant ...
Somatic embryogenesis is a powerful biotechnological tool for the mass production of economically important cultivars. Due to the cellular totipotency of plants, somatic cells under appropriate conditions are able to develop a complete functional embryo. During the induction of somatic embryogenesis, there are different factors involved in the success or failure of the somatic embryogenesis res...
Many factors may influence the efficiency of somatic embryogenesis. This capability may be differ with regard to media compositions, genotype, tissue, organ ontology and the stage of differentiation. The effects of five salicylic acid concentrations (0, 25, 50, 75 and 100 mM) on different stages of carrot somatic embryogenesis were studied using petiole and root secondary phloem explants as sta...
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