Ecophysiological characterization of dormancy states in turions of the aquatic carnivorous plant Aldrovanda vesiculosa.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F03%3A18035049" target="_blank" >RIV/67985939:_____/03:18035049 - 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

Ecophysiological characterization of dormancy states in turions of the aquatic carnivorous plant Aldrovanda vesiculosa.

Popis výsledku v původním jazyce

Innate and imposed dormancy were characterized in turions (winter buds) of the aquatic carnivorous plant Aldrovanda vesiculosa kept at 3 degrees C over the winter. As a result of the breaking of imposed dormancy by a temperature increase (at 15-20oC), the turions rose to the water surface within 1-3 d and germinated. Turion leaves contained large lacunae and were filled by water over winter. As a result of breaking imposed dormancy, the proportion of gas volume in inner turion leaves rose from 10-20 to100 of lacunae volume. The aerobic dark respiration rate of the turions [0.74-1.5 micro mol (O2) kg-1(FM) s-1] slightly increased during innate dormancy after 1-2 d at 20 degrees C, while it was almost constant during the breaking of imposed dormancy. The anaerobic fermentation rate of the turions was only 1.5-7 of the oxygen respiration rate and also was constant during the breaking of imposed dormancy. Starch content was greatly reduced for the imposed dormancy. A temperature increase

Název v anglickém jazyce

Ecophysiological characterization of dormancy states in turions of the aquatic carnivorous plant Aldrovanda vesiculosa.

Popis výsledku anglicky

Innate and imposed dormancy were characterized in turions (winter buds) of the aquatic carnivorous plant Aldrovanda vesiculosa kept at 3 degrees C over the winter. As a result of the breaking of imposed dormancy by a temperature increase (at 15-20oC), the turions rose to the water surface within 1-3 d and germinated. Turion leaves contained large lacunae and were filled by water over winter. As a result of breaking imposed dormancy, the proportion of gas volume in inner turion leaves rose from 10-20 to100 of lacunae volume. The aerobic dark respiration rate of the turions [0.74-1.5 micro mol (O2) kg-1(FM) s-1] slightly increased during innate dormancy after 1-2 d at 20 degrees C, while it was almost constant during the breaking of imposed dormancy. The anaerobic fermentation rate of the turions was only 1.5-7 of the oxygen respiration rate and also was constant during the breaking of imposed dormancy. Starch content was greatly reduced for the imposed dormancy. A temperature increase

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/KSK6005114" target="_blank" >KSK6005114: Biodiversita a funkce ekologických soustav</a><br>

Návaznosti

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

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Biologia Plantarum

ISSN

0006-3134

e-ISSN

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Svazek periodika

47

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

395-402

Kód UT WoS článku

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EID výsledku v databázi Scopus

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