Seasonal shifts in chemotype composition of Microcystis sp. communities in the pelagial and the sediment of a shallow reservoir

WELKER, Martin, Lenka ŠEJNOHOVÁ, Danka NÉMETHOVÁ, Hans von DÖHREN, Jiří JARKOVSKÝ and Blahoslav MARŠÁLEK. Seasonal shifts in chemotype composition of Microcystis sp. communities in the pelagial and the sediment of a shallow reservoir. Limnology and Oceanography. Waco, TX, USA: AMER SOC LIMNOLOGY OCEANOGRAPHY, 2007, vol. 8, No 2, p. 609-619. ISSN 0024-3590.

Basic information

• Original name: Seasonal shifts in chemotype composition of Microcystis sp. communities in the pelagial and the sediment of a shallow reservoir
• Name in Czech: Sezonny posun ve slozeni chemotypu spolecenstev Microcystis sp. v palagialu a sedimentu vodni nadrze
• Authors: WELKER, Martin (276 Germany), Lenka ŠEJNOHOVÁ (203 Czech Republic, guarantor), Danka NÉMETHOVÁ (703 Slovakia), Hans von DÖHREN (276 Germany), Jiří JARKOVSKÝ (203 Czech Republic) and Blahoslav MARŠÁLEK (203 Czech Republic).
• Edition: Limnology and Oceanography, Waco, TX, USA, AMER SOC LIMNOLOGY OCEANOGRAPHY, 2007, 0024-3590.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 3.277
• RIV identification code: RIV/00216224:14310/07:00022020
• Organization unit: Faculty of Science
• UT WoS: 000245145200011
• Keywords in English: Microcystis; peptids; chemotypes; pelagial; sediment; Brno reservoir; Czech Republic
• Tags: Brno reservoir, chemotypes, Czech Republic, Microcystis, pelagial, peptids, sediment
• Tags: International impact, Reviewed

Abstract

The various oligopeptides produced by individual Microcystis clones enable the classification of individual colonies of Microcystis in distinct peptide chemotypes. The dynamics and diversity of coexisting chemotypes are regarded as major factors influencing the microcystin-content of blooms. We compared the chemotype composition in planktonic and benthic Microcystis communities in Brno reservoir (Czech Republic) from July to November 2004 by single colony mass spectrometry. Ninetytwo peptides were selected to characterize 37 chemotypes. In the course of the season the Microcystis community became significantly less diverse in the pelagic, and in November two chemotypes both of which did not contain microcystins accounted for nearly 80% of the colonies. In contrast, other chemotypes that were dominant in the pelagic in July were no longer encountered after August, whereas some chemotypes that never accounted for high relative abundances were encountered throughout the season.

Abstract (in Czech)

The various oligopeptides produced by individual Microcystis clones enable the classification of individual colonies of Microcystis in distinct peptide chemotypes. The dynamics and diversity of coexisting chemotypes are regarded as major factors influencing the microcystin-content of blooms. We compared the chemotype composition in planktonic and benthic Microcystis communities in Brno reservoir (Czech Republic) from July to November 2004 by single colony mass spectrometry. Ninetytwo peptides were selected to characterize 37 chemotypes. In the course of the season the Microcystis community became significantly less diverse in the pelagic, and in November two chemotypes both of which did not contain microcystins accounted for nearly 80% of the colonies. In contrast, other chemotypes that were dominant in the pelagic in July were no longer encountered after August, whereas some chemotypes that never accounted for high relative abundances were encountered throughout the season.

Links

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)