Počet záznamů: 1
Biological dinitrogen fixation by selected soil cyanobacteria as affected by strain origin, morphotype, and light conditions
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SYSNO ASEP 0349707 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Biological dinitrogen fixation by selected soil cyanobacteria as affected by strain origin, morphotype, and light conditions Tvůrce(i) Hrčková, K. (CZ)
Šimek, Miloslav (BC-A) RID, ORCID
Hrouzek, Pavel (MBU-M) ORCID
Lukešová, Alena (BC-A) RID, ORCIDZdroj.dok. Folia Microbiologica. - : Springer - ISSN 0015-5632
Roč. 55, č. 5 (2010), s. 467-473Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova biological dinitrogen fixation ; soil cyanobacteria ; strain origin Vědní obor RIV EH - Ekologie - společenstva CEP LC06066 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy IAA600660605 GA AV ČR - Akademie věd CEZ AV0Z60660521 - UPB-H, BC-A (2005-2011) AV0Z50200510 - MBU-M (2005-2011) UT WOS 000282873200010 DOI 10.1007/s12223-010-0078-6 Anotace The potential for N2 fixation by heterocystous cyanobacteria isolated from soils of different geographical areas was determined as nitrogenase activity (NA) using the acetylene reduction assay. Morphology of cyanobacteria had the largest influence on NA determined under light conditions. NA was generally higher in species lacking thick slime sheaths. The highest value (1446 nmol/h C2H4 per g fresh biomass) was found in the strain of branched cyanobacterium Hassalia (A Has 1) from the polar region. A quadratic relationship between NA and biomass was detected in the Tolypothrix group under light conditions. The decline of NA in dark relative to light conditions ranged from 37 to 100 % and differed among strains from distinct geographical areas. Unlike the NA of temperate and tropical strains, whose decline in dark relative to light was 24 and 17 %, respectively, the NA of polar strains declined to 1 % in the dark. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2011
Počet záznamů: 1