"3228"^^ . . "0"^^ . "1"^^ . "5"^^ . "R\u016Fznorodost p\u016Fdn\u00EDho prost\u0159ed\u00ED p\u0159edpokl\u00E1d\u00E1 vysokou diversifikaci vztah\u016F mezi p\u016Fdn\u00EDmi organismy. Aktinomycety ovliv\u0148uj\u00ED p\u016Fdn\u00ED prost\u0159ed\u00ED produkty sekund\u00E1rn\u00EDho metabolismu, jen\u017E je m\u00E1lo prozkouman\u00FDm faktorem p\u016Fsob\u00EDc\u00EDm na diversitu v r\u016Fzn\u00FDch podm\u00EDnk\u00E1ch. Bakteri\u00E1ln\u00ED spole\u010Denstvo bude studov\u00E1no pomoc\u00ED mikro\u010Dip\u016F: diversita a aktivita druh\u016F oligonukleotidov\u00FDmi sondami z 16S rDNA sekvenc\u00ED a v\u00FDskyt gen\u016F sekund\u00E1rn\u00EDho metabolismu a resistence genov\u011B specifick\u00FDmi sondami. Oba typy \u010Dip\u016F budou hybridizov\u00E1ny eDNA i eRNA. Reakce spole\u010Denstva na produkci bioaktivn\u00EDch l\u00E1tek a dal\u0161\u00ED faktory prost\u0159ed\u00ED bude sledov\u00E1na b\u011Bhem manipula\u010Dn\u00EDho pokusu a dlouhodob\u011B na terenn\u00EDch lokalit\u00E1ch. Tato studie, v kombinaci s v\u00FDsledky aplikovan\u00E9ho v\u00FDzkumu antibiotik v na\u0161\u00ED laborato\u0159i, by m\u011Bla p\u0159in\u00E9st nov\u00E9 poznatky o evoluci sekund\u00E1rn\u00EDho metabolismu, horizont\u00E1ln\u00EDm p\u0159enosu gen\u016F v p\u0159\u00EDrod\u011B a biodiversit\u011B na molekul\u00E1rn\u00ED \u00FArovni."@cs . "biodiversity; secondary metabolism; resistance; activity; soil"@en . . . "Diversity and activity of soil microbial communities: expression of selected genes of secondary metabolism in relationship to envoronmental factors"@en . "3228"^^ . . . "5"^^ . . . . "2008-12-31+01:00"^^ . "0"^^ . "Diversita a aktivita mikrobi\u00E1ln\u00EDch spole\u010Denstev v p\u016Fd\u011B: exprese vybran\u00FDch gen\u016F prim\u00E1rn\u00EDho i sekund\u00E1rn\u00EDho metabolismu ve vztahu k faktor\u016Fm prost\u0159ed\u00ED"@cs . . . . . "2004-01-01+01:00"^^ . "Complex composition of soil habitats implies high diversification of relationships among soil organisms. Actinomycetes bring to the soil environment extensive secondary metabolism, which appears to be a less known factor determining bacterial diversity within a wide range of nabitats. Bacterial community will be studied using microarrays: species diversity and activity using oligonucleotide probes of 16S rDNA sequences, and distribution of secondary metabolic and resitance genes using oligonucleotide gene specific probes, both targeted by eDNA and eRNA. Also, community response to bioactive compound production and other environmental factors will be sought. A long-term observation and manipulation experiment are proposed. A field study on actinomycetes, enriched by information from applied research on antibiotic production in our laboratory, could bring a new understanding of secondary metabolism evolution, horizontal gene transfer in nature and biodiversity at a molecular level."@en .