PHYSIOLOGICAL INTERACTIONS DURING THE INITIAL STAGES OF EMBRYOGENESIS IN CULTURES OF DAUCUS CAROTA L

Autor:	Graham S. Warren, Michael W. Fowler
Rok vydání:	1981
Předmět:	chemistry.chemical_classification biology Cell division Physiology Somatic cell fungi Embryogenesis Morphogenesis food and beverages Embryo Plant Science biology.organism_classification Cell biology chemistry Auxin Botany Subculture (biology) Daucus carota
Zdroj:	New Phytologist. 87:481-486
ISSN:	1469-8137 0028-646X
DOI:	10.1111/j.1469-8137.1981.tb03220.x
Popis:	SUMMARY Somatic globular embryos of carrot develop abnormally when transferred at low density to fresh, minus-auxin medium, whereas normal development ensues after transfer to conditioned medium, or to fresh medium at high densities. It is suggested that a critical level of an ‘embryo factor’ is required to co-ordinate cell division and morphogenesis. Embryo death occurs after the heart stage in minus-auxin cultures of low embryogenic potential. This behaviour may result from the production of auxin as these cultures show some plus-auxin characteristics. The decline in the capacity for normal embryogenesis which often accompanies repeated subculture is suggested to result, in part, from a combination of these factors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3732b162ac1cf942fd1b5fd017143282 https://doi.org/10.1111/j.1469-8137.1981.tb03220.x Zobrazit plný text záznamu Plný text