Partitioning of 14C-photoassimllates within seeds of Phaseolus coccineus (Lam.) and Phaseolus coccineus x Phaseolus vulgaris L

Autor:	W. A. Brun, Mark L. Brenner, E. E. Hoover
Rok vydání:	1985
Předmět:	Coat animal structures food.ingredient biology Physiology food and beverages Plant physiology Embryo Plant Science Interspecific competition biology.organism_classification Photosynthesis Endosperm food embryonic structures Botany Phaseolus coccineus Phaseolus Agronomy and Crop Science
Zdroj:	Plant Growth Regulation. 3:63-69
ISSN:	1573-5087 0167-6903
DOI:	10.1007/bf00123547
Popis:	The objective of this study was to determine partitioning within seeds of 14C-photoassimilates at three stages of seed development in two Phaseolus crosses — P. coccineus Lam. selfed, and P. coccineus x P. vulgaris L. Abortion of the interspecific embryos occurred when the seed reached 10 mm seed length. When expressed as sink strength (% dpm) or sink activity (% dmp/d.wt.) there were no differences in partitioning of 14C-photoassimilates when whole seeds were analyzed. If the seed was divided into seed coat, liquid endosperm, and embryo, the sink activity of the interspecific embryo was higher than that of the embryo in the selfed seed. Therefore, abortion of these interspecific Phaselus embryos appeared not to be caused by a lack of photoassimilates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e174bd67bda1b9e471c6ebfe67577056 https://doi.org/10.1007/bf00123547 Zobrazit plný text záznamu Full text from SpringerLink