In situ response of Nostoc commune s.l. colonies to desiccation in Central Svalbard, Norwegian High Arctic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F11%3A00365238" target="_blank" >RIV/60077344:_____/11:00365238 - isvavai.cz</a>

Alternative codes found

RIV/67985939:_____/11:00365238 RIV/60076658:12310/11:43878491

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

In situ response of Nostoc commune s.l. colonies to desiccation in Central Svalbard, Norwegian High Arctic

Original language description

The effects of desiccation on photochemical processes and nitrogenase activity was evaluated in Nostoc commune s.l. colonies from a wet thufur meadow in Svalbard. The colonies were subjected to slow desiccation at low temperature and low irradiance and the protochemical processes were measured using variable chlorophyll fluorescence and the nitrogenase activity using acetylene-ethylene reduction assay. No changes in colony shape was observed till the colony lost 30% of its fully-hydrated state weight (original weight) and such partly-hydrated state could be even beneficial due to better difusion of CO2 and N2 into cells. Even loss of 50% of the original weight did not affect the metabolical processes. The nitrogeanse activity was not detectable when the colony lost 80 % of its original weight and the photochemistry ceased when the colony lost more than 90 % of its original weight indicating thus good adaptation to water fluctuation and desiccation in situ.

Czech name

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Czech description

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Type

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

CEP classification

EF - Botany

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2011

Confidentiality

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

Name of the periodical

Fottea

ISSN

1802-5439

e-ISSN

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Volume of the periodical

11

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

11

Pages from-to

87-97

UT code for WoS article

000291511200009

EID of the result in the Scopus database

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