Endosperm and Pericarp Involvement in the Supercooling of Imbibed Lettuce Seeds

Autor:	June E. Bourque, Stephen J. Wallner
Rok vydání:	1982
Předmět:	biology Physiology Nucleation food and beverages Lactuca Embryo Articles Plant Science biology.organism_classification Endosperm Botany Genetics Imbibition Supercooling
Zdroj:	Plant Physiology. 70:1571-1573
ISSN:	1532-2548 0032-0889
DOI:	10.1104/pp.70.5.1571
Popis:	Fully hydrated lettuce (Lactuca sativa L.) seeds showed dual freezing exotherms (-9 and -18 degrees C), even after 10 hours imbibition. Only the -9 degrees C exotherm was observed in seeds imbibed for 20 hours, but without external nucleation, all water in the embryo supercooled. Results indicate that the endosperm acts as a barrier to ice propagation. Other experiments suggest that the pericarp may also protect the embryo under certain freezing conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb2fbc67a4fb1c4f7f5348cd3bf6580a https://doi.org/10.1104/pp.70.5.1571 Zobrazit plný text záznamu