Physiological and morphological characteristics during development of pedunculate oak (Quercus robur L.) zygotic embryos

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F06%3A00007017" target="_blank" >RIV/62156489:43210/06:00007017 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Physiological and morphological characteristics during development of pedunculate oak (Quercus robur L.) zygotic embryos

Original language description

The developmental stages of oak zygotic embryos (ZEs) are characterized here according to morphological and physiological features. Seeds were harvested from June to September in 1-week intervals. Excised embryos were classified into four stages of development by using growth parameters. For physiological characterization, endogenous levels of abscisic acid (ABA), indole-3-acetic acid (IAA), l-proline, starch content and water status were determined. The expression of the oak legumin storage protein gene was tested in immature cotyledonary ZEs before and after ABA treatment. The ABA levels of the embryos showed a significant peak during the intermediate stage of maturation (stage III) and then decreased again at the end of the late maturation phase (stage IV). Concomitant with ABA, the moisture content declined with the maximum embryo size. High IAA levels were found at the beginning of embryo enlargement as exponential growth occurred (stage II) but decreased during further developmen

Czech name

Fyziologické a morfologické charakteristiky během vývoje zygotických embryí dubu letního (Quercus robur L.)

Czech description

Vyývojová stádia zygotických embryí dubu jsou charakterizována dle morfologických a fyziologických rysů. Semena byla sklízena od července do září v týdenních intervalech. Vypreparovaná embrya byla rozdělena do čtyř vývojových stádií dle růstových parametrů. Pro fyziologickou charakterizaci byly stanoveny endogenní hladiny kyseliny abscisové (ABA), kyseliny indolyl-3-octové (IAA), 1-prolinu, obsah škobu a vody.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GK - Forestry

OECD FORD branch

—

Project

<a href="/en/project/ME%20119" target="_blank" >ME 119: Hormonal a molecular characterization of somatic embryo induction and development in Norway spruce</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2006

Confidentiality

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

Name of the periodical

Trees

ISSN

0931-1890

e-ISSN

—

Volume of the periodical

20

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

53-60

UT code for WoS article

—

EID of the result in the Scopus database

—