Naslov
Possible interspecies interactions within cave microbial communities in Dinaric caves

Autori
Lukić Bilela, Lada ; Ozimec, Roman ; Pleše, Bruna

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
International Symposium On Sustainable Development ISSD 2014 "Biotechnology for Sustainable Development / Mehmet Serdal Sakcali - Sarajevo : Internatonal Burch University (IBU), 2014, 31-31

ISBN
978-9958-834-33-2

Skup
The Fifth Interntaional Symposium on Sustainable Development

Mjesto i datum
Sarajevo, Bosna i Hercegovina, 15.05.2014. - 18.05.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
biospeleology ; bacteria ; Dinarides ; cave communities ; ecology

Sažetak
The Dinarides are known worldwide as the richest subterranean fauna region, according to an adaptive zones and their inhabiting adaptive types abundance. The subterranean habitats represent an extreme environment with unique particularities including trophic dependence on surface ecosystems. The vast majorities of microorganisms live and grow in aggregated forms such as biofilms, flocks and sludge. As a protected mode of growth, biofilm formation is an ancient and integral component of the prokaryotic life cycle, a key factor for survival in diverse environments and crucial for the colonization of new niches. While microorganisms use this polymer “web” for concentration of nutrients required for their survival and growth, the other organisms present in the caves are utilizing these microbial formations as a food source. Therefore, the biofilm could be considered as a primary unit of evolutionary selection. The samples from the caves Vjetrenica (BiH), Veternica and Bistrac Spring (Croatia) have been analyzed and incorporated with ecological data and fauna checking list. Also, communities with similar morphology were detected in Rokina Bezdana and Miljacka 3 (Croatia). Thus, our study indicates that further findings of microbial communities, showing different morphology and sequence diversity, along Dinarides could be expected. The objectives of this investigation were to describe the genetic diversity of bacterial communities as well as to define ecological data surrounding them. Conducted phylogenetic analysis generally supported 16S rDNA sequence phylogeny and further revealed the presence of phylum Nitrospirae thus giving us the opportunity to link genetic identity of yet uncultured microorganisms with ecosystem functionality. In order to enable insights into ecological concepts and their connection to microbial ecosystems as a nutrition resource, associated fauna in all analyzed localities, where microbial communities were found, has been evaluated. Complex interspecies interactions should be considered among the cave-dwelling animal taxa but also among them and microbial (bacterial, archaeal, fungal and protists) communities in the mats/biofilm.

Izvorni jezik
Engleski

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