About: Comparison of light and dark nitrogenase activity in selected soil cyanobacteria

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Frequency of heterocytes and nitrogenase activity (NA) under light and dark cultivation conditions was determined in 12 cyanobacterial strains isolated from various soil habitats. In spite of a high variability, significant differences in NA among the strains were found in response of light and dark cultivation. Relatively high NA (9.9-15.3 mumol/h C2H4 per g fresh mass) under light conditions and basal NA after 12 h of dark cultivation were detected in Anabaena, Nodularia, Tolypothrix, and I of Cylindrospermum strains. On the other hand, significantly lower NA (0.76-5.4 mumol/h C2H4 per g fresh mass) was found under light conditions in Trichormus, Nostoc and another Cylindrospermum strain; the activity completely disappeared after 12 h of dark cultivation. NA values were not directly related to the frequency of the heterocytes. The total NA of cyanobacterial colony was found to be probably independent of the number and/or position of heterocytes. Remarkable differences in NA between strains isolated Frequency of heterocytes and nitrogenase activity (NA) under light and dark cultivation conditions was determined in 12 cyanobacterial strains isolated from various soil habitats. In spite of a high variability, significant differences in NA among the strains were found in response of light and dark cultivation. Relatively high NA (9.9-15.3 mumol/h C2H4 per g fresh mass) under light conditions and basal NA after 12 h of dark cultivation were detected in Anabaena, Nodularia, Tolypothrix, and I of Cylindrospermum strains. On the other hand, significantly lower NA (0.76-5.4 mumol/h C2H4 per g fresh mass) was found under light conditions in Trichormus, Nostoc and another Cylindrospermum strain; the activity completely disappeared after 12 h of dark cultivation. NA values were not directly related to the frequency of the heterocytes. The total NA of cyanobacterial colony was found to be probably independent of the number and/or position of heterocytes. Remarkable differences in NA between strains isolated (en) Byla studována nitrogenázová aktivita 12 kmenů sinic izolovaných z různých podmínek a kultivovaných na světle a ve tmě. Různé kmeny sinic reagovaly různě na světelný režim a kultivační podmínky. Celková nitrogenázová aktivita kolonií byla nezávislá na počtu a umístění heterocytů. (cs)
Title	Comparison of light and dark nitrogenase activity in selected soil cyanobacteria Porovnání nitrogenázové aktivity vybraných půdních sinic kultivovaných na světle a ve tmě (cs) Comparison of light and dark nitrogenase activity in selected soil cyanobacteria (en)
skos:prefLabel	Comparison of light and dark nitrogenase activity in selected soil cyanobacteria Porovnání nitrogenázové aktivity vybraných půdních sinic kultivovaných na světle a ve tmě (cs) Comparison of light and dark nitrogenase activity in selected soil cyanobacteria (en)
skos:notation	RIV/60076658:12310/04:00008644!RIV08-MSM-12310___
http://linked.open.../vavai/riv/strany	435-440
http://linked.open...avai/riv/aktivita	V Z
http://linked.open...avai/riv/aktivity	V, Z(AV0Z6066911)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Šimek, Miloslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Jihočeská univerzita v Českých Budějovicích / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	558255
http://linked.open...ai/riv/idVysledku	RIV/60076658:12310/04:00008644
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cyanobacteria; nitrogenase; nitrogen fixation; acetylene reduction (en)
http://linked.open.../riv/klicoveSlovo	nitrogenase cyanobacteria nitrogen fixation acetylene reduction
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[379AA17DA16D]
http://linked.open...i/riv/nazevZdroje	Folia Microbiologica
http://linked.open...in/vavai/riv/obor	DF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	49
http://linked.open...iv/tvurceVysledku	Hrouzek, P. Lukešová, Alena Šimek, Miloslav
http://linked.open...n/vavai/riv/zamer	Společenstva půdních organismů v půdách ekosystémů s různou antropogenní zátěží - jejich struktura, funkce a vzájemné interakce
issn	0015-5632
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	12310

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