Role of cytokinin in Nicotiana genetic tumors - A working hypothesis

Autor:	S. D. Kung
Rok vydání:	1991
Předmět:	chemistry.chemical_classification Cell signaling Physiology fungi Mutant food and beverages Endogeny Cell Biology Plant Science General Medicine Biology biology.organism_classification Cell biology chemistry.chemical_compound chemistry Auxin Cytokinin Botany Genetics Leafy Hormone Nicotiana
Zdroj:	Physiologia Plantarum. 82:474-476
ISSN:	1399-3054 0031-9317
Popis:	There are three prerequisites for the development of genetic tumors in Nicotiana; distantly related species must be crossed interspecifically, the hybrid plants must be exposed to stress conditions and an elevated level of cytokinin must be present. These events occur sequentially. First, the interspecific hybrid plants appear to produce a unique tumor-inducing factor (Ti-factor). Second, stress conditions trigger the synthesis signal molecule(s) which in turn stimulate synthesis of increased levels of cytokinin. Third, the elevated level of cytokinin acts upon the Ti-factor to initiate uncontrolled growth. The predominant shooty/leafy morphology of genetic tumors reflects the high level of endogenous cytokinin, and this hormone appears to play a pivotal role in the development of these tumors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::167816ce349efe64000014a3bade1c37 https://doi.org/10.1111/j.1399-3054.1991.tb02934.x Zobrazit plný text záznamu Plný text