20.500.12556/DKUM-65295 The effects of jasmonic acid and ethylenediamine-di-o-hydroxyphenyl-acetic acid on floral induction and induction of turions in Spirodela polyrhiza (L.) Schleiden We investigated the effects of jasmonic acid (JA) and ethylenediamine-di-o-hydroxyphenyl-acetic acid (EDDHA) on floral induction and induction of turions in the photoperiodically neutral clone Djelekovec of the species Spirodela polyrhiza in axenical cultures. JA (0.475-47.5 nmol.L-1) promoted floral induction under long-day (LD) and short day (SD) conditions, while it had no effect on turion induction. The inhibitory effect of JA on flowering and turion induction was observed at a JA concentration of 237.5 nmol.L-1 and 475 nmpl.L-1. Under the same conditions, flowering and induction of turions were enhanced by EDDHA (20.5 nmol..L-1(. The combination od EDDHA and JA had an additive effect on promotion of floral induction, which was promoted significantly in experiments with LD preculture. The results obtained by quantitative determination of endogenous JA levels in Spirodela polyrhiza at two growth stages support our previous findings that JA may regulate floral induction. The levels of endogenous JA decreased from 226±12 ng·g–1 fresh weight during the vegetative stage in LD to 38.1±3.5 ng·g–1 in the flowering plants. In SD the levels of endogenous JA decreased from 62±9ng·g–1 fresh weight during vegetative stage to 29.2±3.1 ng·g–1 in the flowering plants. Spirodela polyrhiza (L.) Schleiden chelating agent EDDHA flowering induction of turions jasmonic acid Spirodela polyrhiza (L.) Schleiden kelatni reagent EDDHA cvetenje indukcija turionov jasmonska kislina true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-03-28 14:43:11 2017-03-28 14:45:20 2022-07-07 03:09:10 2019-07-11 15:13:47 2008 0 0 str. 131-138 št. 2 Letn. 67 2008 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 0365-0588 581 6134786 2687276 0365-0588 URN:SI:UM:DK:8RUHDADN Acta_Botanica_Croatica_2008_Hrzenjak,_Kristl,_Krajncic_The_effects_of_jasmonic_acid_and_ethylenediamine-di-o-hydroxyphenyl-acetic_acid_o.pdf Acta_Botanica_Croatica_2008_Hrzenjak,_Kristl,_Krajncic_The_effects_of_jasmonic_acid_and_ethylenediamine-di-o-hydroxyphenyl-acetic_acid_o.pdf 1 855A7B28332C5C7424F3113DE0093FA2 8e4631f4866bdfa614b783d54e5ff52834b11ed02b52738451860ef67c44f5c4 08b76803-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=110302 http://hrcak.srce.hr/28591 1 https://dk.um.si/Dokument.php?lang=slv&id=110301 Fakulteta za kmetijstvo in biosistemske vede 0 0 0