Změny v růstových parametrech a obsahu N-zásobních látek v kořenech a oddencích Calamagrostis epigejos po opakované defoliaci

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F04%3A00012017" target="_blank" >RIV/00216224:14310/04:00012017 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Changes in growth parameters and content of N-storage compounds in roots and rhizomes of Calamagrostis epigejos after repeated defoliation

Popis výsledku v původním jazyce

Young plants of rhizomatous grass Calamagrostis epigejos (L.) ROTH, cultivated in controlled conditions at two levels of nitrogen availability (2 mM and 0.4 mM NH4NO3) were repeatedly defoliated in 7 days intervals. Most of the newly formed or stored organic compounds were used for shoot regeneration and rhizome expansion, while growth of roots was completely stopped. Morphogenetic processes, namely leaf and rhizome initiation, were affected by defoliation much less than biomass allocation. The defoliated plants had lower content of amino acids and more abundant soluble proteins in roots and rhizomes than intact plants. The response of C. epigejos plants to defoliation was similar at both levels of nitrogen availability. Our results indicate, that therate of regrowth of experimental plants was hardly limited by depletion of internal nitrogen reserves, but some regulative effect of qualitative changes in stored nitrogen compounds on biomass allocation and morphogenetic processes cannot

Název v anglickém jazyce

Changes in growth parameters and content of N-storage compounds in roots and rhizomes of Calamagrostis epigejos after repeated defoliation

Popis výsledku anglicky

Young plants of rhizomatous grass Calamagrostis epigejos (L.) ROTH, cultivated in controlled conditions at two levels of nitrogen availability (2 mM and 0.4 mM NH4NO3) were repeatedly defoliated in 7 days intervals. Most of the newly formed or stored organic compounds were used for shoot regeneration and rhizome expansion, while growth of roots was completely stopped. Morphogenetic processes, namely leaf and rhizome initiation, were affected by defoliation much less than biomass allocation. The defoliated plants had lower content of amino acids and more abundant soluble proteins in roots and rhizomes than intact plants. The response of C. epigejos plants to defoliation was similar at both levels of nitrogen availability. Our results indicate, that therate of regrowth of experimental plants was hardly limited by depletion of internal nitrogen reserves, but some regulative effect of qualitative changes in stored nitrogen compounds on biomass allocation and morphogenetic processes cannot

Druh

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

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

<a href="/cs/project/GA206%2F98%2FP268" target="_blank" >GA206/98/P268: Úloha dusíkatých zásobních látek v řízení růstových procesů třtiny křovištní (Calamagrostis epigejos)</a><br>

Návaznosti

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

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Biológia

ISSN

0006-3088

e-ISSN

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Svazek periodika

59

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

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EID výsledku v databázi Scopus

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