Storage compounds, ABA and fumarase in Fagus sylvatica embryos during stratification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F15%3A00451234" target="_blank" >RIV/61389030:_____/15:00451234 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.12657/denbio.074.003" target="_blank" >http://dx.doi.org/10.12657/denbio.074.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12657/denbio.074.003" target="_blank" >10.12657/denbio.074.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Storage compounds, ABA and fumarase in Fagus sylvatica embryos during stratification

Popis výsledku v původním jazyce

Understanding the mechanisms of seed dormancy is essential for planning optimal seed storage and for breaking the dormancy of stored seeds. Our experiments focused on three aspects of characterization of breaking the dormancy of Fagus sylvatica seeds during moist low temperature stratification. 1) We used the changes of ABA content in embryos during the whole process of stratification as the marker of the depth of dormancy: the decrease in the depth of dormancy (according standard germination tests) wasdirectly proportional to the drop in endogenous ABA content in both cotyledons and embryonic axes. 2) Fumarase activity (the second marker of dormancy) increased gradually during stratification. 3) The histochemical visualisation of storage compounds asthe third marker of dormancy documented the changes in storage protein deposition during stratification. The proteinaceous content of storage vacuoles disappeared; the vacuoles diminished, petered out or fused, creating central vacuoles.

Název v anglickém jazyce

Storage compounds, ABA and fumarase in Fagus sylvatica embryos during stratification

Popis výsledku anglicky

Understanding the mechanisms of seed dormancy is essential for planning optimal seed storage and for breaking the dormancy of stored seeds. Our experiments focused on three aspects of characterization of breaking the dormancy of Fagus sylvatica seeds during moist low temperature stratification. 1) We used the changes of ABA content in embryos during the whole process of stratification as the marker of the depth of dormancy: the decrease in the depth of dormancy (according standard germination tests) wasdirectly proportional to the drop in endogenous ABA content in both cotyledons and embryonic axes. 2) Fumarase activity (the second marker of dormancy) increased gradually during stratification. 3) The histochemical visualisation of storage compounds asthe third marker of dormancy documented the changes in storage protein deposition during stratification. The proteinaceous content of storage vacuoles disappeared; the vacuoles diminished, petered out or fused, creating central vacuoles.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

—

Projekt

<a href="/cs/project/QI102A256" target="_blank" >QI102A256: Optimalizace předosevní přípravy dormantních semen buku</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Dendrobiology

ISSN

1641-1307

e-ISSN

—

Svazek periodika

74

Číslo periodika v rámci svazku

10 March

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

9

Strana od-do

25-33

Kód UT WoS článku

000364403000003

EID výsledku v databázi Scopus

2-s2.0-84946406340