Abscisic acid and gibberellic acid-regulated responses of embryos and aleurone layers isolated from dormant and nondormant barley grains

Autor:	J. M. M. Van Beckum, Kees R. Libbenga, Mei Wang
Přispěvatelé:	Centraal Instituut voor Voedingsonderzoek TNO
Rok vydání:	1993
Předmět:	animal structures Physiology fungi food and beverages Cell Biology Plant Science General Medicine Biology Caryopsis chemistry.chemical_compound chemistry Germination Aleurone embryonic structures Botany Genetics Dormancy Gibberellin Hordeum vulgare Abscisic acid Gibberellic acid Nutrition
Zdroj:	Physiologia Plantarum, 89, 483-489
ISSN:	1399-3054 0031-9317
DOI:	10.1034/j.1399-3054.1993.890311.x
Popis:	Dormant and nondormant isogenic barley grains were obtained by maturing grains under short day (SD) or long day (LD) growth conditions, respectively. Hormonal responses of isolated embryos and aleurone layers from these grains were studied. Addition of abscisic acid (ABA) reduced germination rate and percentage of embryos, and induced Rab (ABA-responsive) mRNA in aleurone layers from both types of grain. Embryos and aleurone layers from dormant grains responded stronger to ABA than those from nondormant grains. Gibberellic acid (GA 3 ) increased the germination rate and percentage of embryos from dormant grains and counteracted the ABA-induced inhibition of embryo germination
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c1e0d843e32012b778e45b4e96d01e6 https://doi.org/10.1034/j.1399-3054.1993.890311.x Zobrazit plný text záznamu Plný text