Some Morphogenic Differences between Monoecious and Gynoecious Cucumber Seedlings as Related to Ethylene Production

Autor:	D. J. Makus, R. L. Lower, D. M. Pharr
Rok vydání:	1975
Předmět:	Ethylene biology Physiology fungi Longitudinal growth food and beverages Plant Science biology.organism_classification Hypocotyl chemistry.chemical_compound chemistry Seedling Botany Genetics Plant reproductive morphology Thickening Cultivar Cucumis
Zdroj:	Plant Physiology. 55:352-355
ISSN:	1532-2548 0032-0889
DOI:	10.1104/pp.55.2.352
Popis:	Exposure of gibberellic acid-treated seedlings of a monoecious cucumber cultivar ;Chipper' (Cucumis sativus L.) to ethylene caused thickening of the hypocotyl, inhibited longitudinal growth, and had no effect on fresh weight. Downward curvature of cotyledons was increased by the presence of ethylene. A gynoecious breeding line, ;Gy 3,' had thicker hypocotyls and displayed its cotyledons in a more downward position than ;Chipper'. Excised hypocotyls of the gynoecious seedlings produced three times as much ethylene as did the monoecious Chipper hypocotyls. Thus, ethylene may play a role in the regulation of cucumber seedling morphology.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::88e07ece9d6cbd39eb0f60377c330620 https://doi.org/10.1104/pp.55.2.352 Zobrazit plný text záznamu