Seed development, seed germination and seedling growth in the R50 (sym16) pea mutant are not directly linked to altered cytokinin homeostasis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33142817" target="_blank" >RIV/61989592:15310/12:33142817 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389030:_____/12:00382517

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1111/j.1399-3054.2012.01594.x/abstract;jsessionid=96F45CEE7CBC5F53D154397297FEA4FC.d04t04" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/j.1399-3054.2012.01594.x/abstract;jsessionid=96F45CEE7CBC5F53D154397297FEA4FC.d04t04</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/j.1399-3054.2012.01594.x" target="_blank" >10.1111/j.1399-3054.2012.01594.x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Seed development, seed germination and seedling growth in the R50 (sym16) pea mutant are not directly linked to altered cytokinin homeostasis

Popis výsledku v původním jazyce

R50 (sym16) is a pea nodulation mutant that accumulates cytokinin (CK) in its vegetative organs. Total CK content increases as the plant ages because of the low activity of the enzyme cytokinin oxidase/dehydrogenase (CKX) responsible for CK degradation.R50 exhibits a large seed with high relative water content, and its seedling establishes itself slowly. Whether these two traits are linked to abnormal CK levels was considered here. R50 was found to have a similar germination rate but a much slower epicotyl emergence than Sparkle, its wild-type (WT). At the onset of emergence, the starch grains in R50 cotyledons were larger than those of WT; furthermore, they did not degrade as fast as in WT because of low amylase activity. No differences between the pea lines were observed in the CK forms identified during seed embryogenesis. However, while CK content compared to that of WT was reduced early in R50 embryogenesis, it was elevated later on in its dry seeds where CKX activity was low, al

Název v anglickém jazyce

Seed development, seed germination and seedling growth in the R50 (sym16) pea mutant are not directly linked to altered cytokinin homeostasis

Popis výsledku anglicky

R50 (sym16) is a pea nodulation mutant that accumulates cytokinin (CK) in its vegetative organs. Total CK content increases as the plant ages because of the low activity of the enzyme cytokinin oxidase/dehydrogenase (CKX) responsible for CK degradation.R50 exhibits a large seed with high relative water content, and its seedling establishes itself slowly. Whether these two traits are linked to abnormal CK levels was considered here. R50 was found to have a similar germination rate but a much slower epicotyl emergence than Sparkle, its wild-type (WT). At the onset of emergence, the starch grains in R50 cotyledons were larger than those of WT; furthermore, they did not degrade as fast as in WT because of low amylase activity. No differences between the pea lines were observed in the CK forms identified during seed embryogenesis. However, while CK content compared to that of WT was reduced early in R50 embryogenesis, it was elevated later on in its dry seeds where CKX activity was low, al

Druh

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

CEP obor

ED - Fyziologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Physiologia Plantarum

ISSN

0031-9317

e-ISSN

—

Svazek periodika

145

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DK - Dánské království

Počet stran výsledku

19

Strana od-do

341-359

Kód UT WoS článku

000303798500008

EID výsledku v databázi Scopus

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