Opportunism of soil bacterial communities: A fallow and meadow soils study

0350499 - BC 2011 RIV SK eng C - Konferenční příspěvek (zahraniční konf.)
Chmolowska, D. - Krištůfek, Václav - Elhottová, Dana - Kozak, M.
Opportunism of soil bacterial communities: A fallow and meadow soils study.
Život v pôde XI. Zborník z medzinárodného seminára. Bratislava: Vydavateľstvo Univerzity Komenského, 2010, s. 9-14. ISBN 978-80-223-2796-1.
[Život v pôde /11./. Bratislava (SK), 26.01.2010-27.01.2010]
Grant CEP: GA MŠMT LC06066
Grant ostatní: Jagiellonian University(PL) DS/BiNoZ/INoS/759/2009
Výzkumný záměr: CEZ:AV0Z60660521
Klíčová slova: soil microbial community * r/K strategy * opportunism
Kód oboru RIV: EH - Ekologie - společenstva

Opportunism or r-strategy, in case of soil microbial communities, is the ability to grow on cultivation media and secondly, how fast the colonies are in this. It is generally assumed that younger soil inhabits more opportunistic (r-selected) communities. In our research we compared opportunism of soil bacterial communities from six fallow fields, six meadow fields and four transitory from fallow to meadow fields. We hypothesized that fallows, which are few years old, should contain more r- selected bacterial communities than soils from meadows, which were consistently managed for many years. Culturability was calculated from the ratio of Colony Forming Curves from agar plates to the total number of cells from epifluorescence microscopy. To compare the rate of growing activity, new colonies were counted on plates every day for seven days. There were no differences in culturability ratio of soil bacterial communities between ecosystems.
Trvalý link: http://hdl.handle.net/11104/0190490