نتایج جستجو برای: and embryogenic callus
تعداد نتایج: 16828255 فیلتر نتایج به سال:
Haploids in Conifer Species: Characterization and Chromosomal Integrity of a Maritime Pine Cell Line
Haploids are a valuable tool for genomic studies in higher plants, especially those with huge genome size and long juvenile periods, such as conifers. In these species, megagametophyte cultures have been widely used to obtain haploid callus and somatic embryogenic lines. One of the main problems associated with tissue culture is the potential genetic instability of the regenerants. Because of t...
The aim of this paper is to describe the evaluation of engineered herbicide-resistance in transgenic sugarcane of Herbicide treatment of crops allows economic weed control. To be useful, herbicides must distinguish between crop plant variety NCo3 10 under field conditions. and weed, and this often limits usage. Engineering herbicide resistance into crop plants via genetic transformation techniq...
BACKGROUND Although somatic embryogenesis has an unprecedented potential for large-scale clonal propagation of conifers, the ability to efficiently induce the embryonal cultures required for somatic embryo production has long been a challenge. Furthermore, because early stage zygotic embryos remain the only responsive explants for pines, it is not possible to clone individual trees from vegetat...
An efficient in vitro protocol has been established for somatic embryogenesis and plantlet conversion of Korean wild ginseng (Panax ginseng Meyer). Wild-type and mutant adventitious roots derived from the ginseng produced calluses on Murashige and Skoog (MS) medium supplemented with 0.5 mg/L 2,4-dichlorophenoxyacetic acid and 0.3 mg/L kinetin; 53.3% of the explants formed callus. Embryogenic ca...
Establishment of efficient protocol for the induction of somatic embryogenesis and plantlet regeneration from shoot tip explants was achieved in Glycine max (L).Merr. cv.PK472. Highest frequency (95%) of embryogenic callus formation was obtained from shoot tip explants of Glycine max (L).Merr.cv.PK472 on Murashige and Skoog (MS) medium fortified with different concentration of 2,4-Dichloropheno...
Establishment of efficient protocol for the induction of somatic embryogenesis and plant regeneration from embryonic axes explants was achieved in Glycine max (L.) Merr. Highest frequency (92.9%) of embryogenic callus formation was obtained from embryonic axes explants of cv. CO-1 on MS media containing 2,4-Dichlorophenoxy acetic acid (2,4-D) and 6-benzyl adenine (BA). Fast growing, yellowish n...
A reproducible system for the generation of fertile, transgenic maize plants has been developed. Cells from embryogenic maize suspension cultures were transformed with the bacterial gene bar using microprojectile bombardment. Transformed calli were selected from the suspension cultures using the herbicide bialaphos. Integration of bar and activity of the enzyme phosphinothricin acetyltransferas...
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