مقال مجلة
Complete germination of papaya (Carica papaya L. cv. `Maradol Roja´) somatic embryos using temporary immersion system type RITA® and phloroglucinol in semi-solid culture medium
[2017]
Posada-Pérez, Laisyn;
Montesinos, Yenny, P.;
Guerra, Diosdada, G.;
Daniels, Dion;
et al.
Complete germination of papaya (Carica papaya L. cv. `Maradol Roja´) somatic embryos using temporary immersion system type RITA® and phloroglucinol in semi-solid culture medium
2017
Posada-Pérez, Laisyn; Montesinos, Yenny; Guerra, Diosdada; Daniels, Dion; Gómez-Kosky, Rafael
http://dx.doi.org/10.1007/s11627-017-9842-5
A critical factor in somatic embryogenesis protocols in papaya (Carica papaya L.) has been incomplete germination of somatic embryos due to formation of a basal callus, which prevents the emission of the radicle. This work aims to achieve complete germination of somatic embryos in liquid and semi-solid culture media. The effect of the culture conditions on germination of somatic embryos using the RITA® temporary immersion system were evaluated as well as the effect of phloroglucinol on germination of somatic embryos in semi-solid culture medium. The results of using the RITA® culture medium with a combination of 0.02 μM BAP and 2.90 μM gibberellic acid had a good response for total germination (100%) but somatic embryos had only partial germination with 400 mg fresh mass. However, the optimum inoculum density was 200 mg fresh mass of somatic embryos which produced 100% total germination and 95% somatic embryos with complete germination. Also, it was possible to achieve complete germination of somatic embryos with low callus formation (13%) using phloroglucinol at a concentration of 475.8 μM on semi-solid culture medium. This is the first report of two biotechnological strategies for complete germination of plants from somatic embryos in the papaya cultivar `Maradol Roja´.
[In vitro cellular & developmental biology]
2018/US/US2018_3.rdf
A critical factor in somatic embryogenesis protocols in papaya (Carica papaya L.) has been incomplete germination of somatic embryos due to formation of a basal callus, which prevents the emission of the radicle. This work aims to achieve complete germination of somatic embryos in liquid and semi-solid culture media. The effect of the culture conditions on germination of somatic embryos using the RITA® temporary immersion system were evaluated as well as the effect of phloroglucinol on germination of somatic embryos in semi-solid culture medium. The results of using the RITA® culture medium with a combination of 0.02 μM BAP and 2.90 μM gibberellic acid had a good response for total germination (100%) but somatic embryos had only partial germination with 400 mg fresh mass. However, the optimum inoculum density was 200 mg fresh mass of somatic embryos which produced 100% total germination and 95% somatic embryos with complete germination. Also, it was possible to achieve complete germination of somatic embryos with low callus formation (13%) using phloroglucinol at a concentration of 475.8 μM on semi-solid culture medium. This is the first report of two biotechnological strategies for complete germination of plants from somatic embryos in the papaya cultivar `Maradol Roja´.