Dormancy breaking in Fagus sylvatica seeds is linked to formation of abscisic acid-glucosyl ester
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60456540%3A_____%2F20%3AN0000085" target="_blank" >RIV/60456540:_____/20:N0000085 - isvavai.cz</a>
Alternative codes found
RIV/61389030:_____/20:00531180 RIV/00020702:_____/20:N0000168
Result on the web
<a href="https://link.springer.com/article/10.1007/s11056-019-09751-8" target="_blank" >https://link.springer.com/article/10.1007/s11056-019-09751-8</a>
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Dormancy breaking in Fagus sylvatica seeds is linked to formation of abscisic acid-glucosyl ester
Original language description
Seed dormancy is an adaptive mechanism that allows seed germination under suitable environmental conditions. Germination of stored dormant seeds proceeds after dormancy breaking induced by stratification. To improve understanding of dormancy breaking in beechnuts, we: investigated effects of moisture content and temperature during storage; analysed contents of abscisic acid, abscisic acid metabolites and indole-3-acetic acid in embryonic axes during storage and stratification; and histochemically localized storage proteins in embryogenic axes and cotyledons of beechnut embryos. The results show that storage conditions can affect the nuts’ abscisic acid contents, but not the stratification process. In addition, dormancy breaking is linked to a reduction in abscisic acid contents and depth of dormancy is not influenced by either of these storage factors. Detected changes that correlated most strongly with dormancy breaking were a big increase in abscisic acid-glucosyl ester levels and accompanying reduction in the abscisic acid-glucosyl ester to abscisic acid ratio. We detected extremely low concentrations of other abscisic acid metabolites-neophaseic, phaseic and dihydrophaseic acids—in non-dormant stored beechnuts, but somewhat higher concentrations during dormancy. No relationships between changes in indole-3-acetic acid levels with either storage conditions or dormancy breaking were detected. Changes in distributions of storage proteins were related to the seeds’ moisture content during storage and stratification rather than seed dormancy. We conclude that increases in endogenous abscisic acid-glucosyl ester levels and abscisic acid-glucosyl ester to abscisic acid ratios are good markers of depth of dormancy and/or effectiveness of stratification in beechnuts.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
40102 - Forestry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
New Forests
ISSN
0169-4286
e-ISSN
1573-5095
Volume of the periodical
51
Issue of the periodical within the volume
4
Country of publishing house
IT - ITALY
Number of pages
8
Pages from-to
671-678
UT code for WoS article
000533789300007
EID of the result in the Scopus database
2-s2.0-85073994251