Bacterial opportunism in fallow and meadow soils

0374997 - BC 2012 RIV SK eng J - Článek v odborném periodiku
Chmolowska, D. - Krištůfek, Václav - Elhottová, Dana - Laskowski, R. - Kozak, M.
Bacterial opportunism in fallow and meadow soils.
Phytopedon. Roč. 9, č. 2 (2010), s. 8-17. ISSN 1336-1120
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 the r strategy, in the case of soil microbial communities refers to the ability of being cultivated and the rate of growth on culture media. It is generally assumed that younger soil is inhabited by more opportunistic (r-selected) communities. In our research we examined the opportunism of soil bacterial communities from six fallow fields, which represent a young ecosystem under succession, six meadows, which represent a stable ecosystem, and four sites transitional between fallow and meadow fields. Culturability was calculated from the ratio of Colony Forming Units from agar R2A plates to the total number of cells from epifluorescence microscopy. To compare the rate of growth, colonies were counted on plates every day for seven day. Additionally, the results obtained from agar inoculations were compared with soil microbial communities PLFA profiles. There were no differences in the culturability ratio of soil bacterial communities between ecosystems.
Trvalý link: http://hdl.handle.net/11104/0207777