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Rhizobium Lipooligosaccharides Rescue a Carrot Somatic Embryo Mutant.
De Jong, A. J.; Heidstra, R.; Spaink, H. P.; Hartog, M. V.; Meijer, E. A.; Hendriks, T.; Schiavo, F. L.; Terzi, M.; Bisseling, T.; Van Kammen, A.; De Vries, S. C..
Afiliación
  • De Jong AJ; Agricultural University Wageningen, Department of Molecular Biology, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands.
Plant Cell ; 5(6): 615-620, 1993 Jun.
Article en En | MEDLINE | ID: mdl-12271077
ABSTRACT
At a nonpermissive temperature, somatic embryos of the temperature-sensitive (ts) carrot cell mutant ts11 only proceed beyond the globular embryo stage in the presence of medium conditioned by wild-type embryos. The causative component in the conditioned medium has previously been identified as a 32-kD acidic endochitinase. In search of a function for this enzyme in plant embryogenesis, several compounds that contain oligomers of N-acetylglucosamine were tested for their ability to promote ts11 embryo formation. Of these compounds, only the Rhizobium lipooligosaccharides or nodulation (Nod) factors were found to be effective in rescuing the formation of ts11 embryos. These results suggest that N-acetylglucosamine-containing lipooligosaccharides from bacterial origin can mimic the effect of the carrot endochitinase. This endochitinase may therefore be involved in the generation of plant analogs of the Rhizobium Nod factors.

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Plant Cell Asunto de la revista: BOTANICA Año: 1993 Tipo del documento: Article País de afiliación: Países Bajos

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Plant Cell Asunto de la revista: BOTANICA Año: 1993 Tipo del documento: Article País de afiliación: Países Bajos