Osmotic stress and recovery in field populations of Zygnema sp (Zygnematophyceae, Streptophyta) on Svalbard (High Arctic) subjected to natural desiccation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10283738" target="_blank" >RIV/00216208:11310/14:10283738 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/14:00432051 RIV/60076658:12310/14:43887358

Výsledek na webu

<a href="http://dx.doi.org/10.1111/1574-6941.12288" target="_blank" >http://dx.doi.org/10.1111/1574-6941.12288</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1574-6941.12288" target="_blank" >10.1111/1574-6941.12288</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Osmotic stress and recovery in field populations of Zygnema sp (Zygnematophyceae, Streptophyta) on Svalbard (High Arctic) subjected to natural desiccation

Popis výsledku v původním jazyce

Zygnema is a genus of filamentous green algae belonging to the class of Zygnematophyceae (Streptophyta). In the Arctic, it typically forms extensive mats in habitats that regularly dry out during summer, and therefore, mechanisms of stress resistance areexpected. We investigated its natural populations with respect to production of specialized desiccation-resistant cells and osmotic acclimation. Six populations in various stages of natural desiccation were selected, from wet biomass floating in water to dried paper-like crusts. After rewetting, plasmolysis and osmotic stress effects were studied using hypertonic sorbitol solutions, and the physiological state was estimated using chlorophyll a fluorescence parameters. All populations of Zygnema sp. formed stationary-phase cells filled with storage products. In green algal research, such cells are traditionally called akinetes. However, the populations differed in their reaction to osmotic stress. Whereas the wet-collected samples were

Název v anglickém jazyce

Osmotic stress and recovery in field populations of Zygnema sp (Zygnematophyceae, Streptophyta) on Svalbard (High Arctic) subjected to natural desiccation

Popis výsledku anglicky

Zygnema is a genus of filamentous green algae belonging to the class of Zygnematophyceae (Streptophyta). In the Arctic, it typically forms extensive mats in habitats that regularly dry out during summer, and therefore, mechanisms of stress resistance areexpected. We investigated its natural populations with respect to production of specialized desiccation-resistant cells and osmotic acclimation. Six populations in various stages of natural desiccation were selected, from wet biomass floating in water to dried paper-like crusts. After rewetting, plasmolysis and osmotic stress effects were studied using hypertonic sorbitol solutions, and the physiological state was estimated using chlorophyll a fluorescence parameters. All populations of Zygnema sp. formed stationary-phase cells filled with storage products. In green algal research, such cells are traditionally called akinetes. However, the populations differed in their reaction to osmotic stress. Whereas the wet-collected samples were

Druh

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

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

—

Projekt

<a href="/cs/project/LM2010009" target="_blank" >LM2010009: Projekt CzechPolar - České polární stanice: Stavba a operační náklady</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

FEMS Micriobiology Ecology

ISSN

0168-6496

e-ISSN

—

Svazek periodika

89

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

270-280

Kód UT WoS článku

000340535200006

EID výsledku v databázi Scopus

—