Southern African Biological Soil Crusts are Ubiquitous and Highly Diverse in Drylands, Being Restricted by Rainfall Frequency
It is concluded that BSCs are a normal and frequent element of the vegetation in arid and semi-arid southwestern Africa, and that rain frequency and duration of dry periods rather than the precipitation amount is the main factor for BSC growth and succession.
Diversity and phylotype consistency of bacteria in the guts of three bee species (Apoidea) at an oilseed rape field.
The gut of insects may harbour one of the largest reservoirs of a yet unexplored microbial diversity, and phylogenetic analyses indicated common bacterial phylotypes for all three bee species, e.g. those related to Simonsiella, Serratia, and Lactobacillus.
Tufa-forming biofilms of German karstwater streams: microorganisms, exopolymers, hydrochemistry and calcification
Abstract To understand mechanisms of tufa biofilm calcification, selected karstwater stream stromatolites in Germany have been investigated with regard to their hydrochemistry, biofilm community,…
History of Antibiotics Research.
- Kathrin I. Mohr
- MedicineCurrent Topics in Microbiology and Immunology
The situation within the pre-antibiotic era as well as in the early antibiotic era will be described until the Golden Age of Antibiotics will conclude this time travel.
Discovery of Paenibacillus larvae ERIC V: Phenotypic and genomic comparison to genotypes ERIC I-IV reveal different inventories of virulence factors which correlate with epidemiological prevalences…
Marinoquinolines A-F, pyrroloquinolines from Ohtaekwangia kribbensis (Bacteroidetes).
- P. Okanya, Kathrin I. Mohr, K. Gerth, R. Jansen, R. Müller
- Chemistry, BiologyJournal of Natural Products
- 1 April 2011
The pyrroloquinolines showed weak antibacterial and antifungal activities and moderate cytotoxicity against four growing mammalian cell lines with IC(50) values ranging from 0.3 to 8.0 μg/mL.
Sandaracinus amylolyticus gen. nov., sp. nov., a starch-degrading soil myxobacterium, and description of Sandaracinaceae fam. nov.
- Kathrin I. Mohr, Ronald Garcia, K. Gerth, H. Irschik, R. Müller
- BiologyInternational Journal of Systematic and…
- 1 May 2012
It is proposed that strain NOSO-4(T) represents a novel species in a new genus, i.e. Sandaracinus amylolyticus gen. nov., but also belongs to a new family, SandARacinaceae fam.nov.
Testing for endemism, genotypic diversity and species concepts in Antarctic terrestrial microalgae of the Tribonemataceae (Stramenopiles, Xanthophyceae).
- N. Rybalka, R. Andersen, T. Friedl
- Biology, Environmental ScienceEnvironmental Microbiology
- 1 March 2009
The presence of distinctive sequence regions within the psbA/rbcL spacer, together with differences in the rbcL phylogeny, provided significant autoapomorphic criteria to re-define the Tribonemataceae species.
Cystobactamids: myxobacterial topoisomerase inhibitors exhibiting potent antibacterial activity.
Highly potent novel antibacterial compounds, the myxobacteria-derived cystobactamids 1-3, which were isolated from Cystobacter sp.
Diversity of Microscopic Green Algae (Chlorophyta) in Calcifying Biofilms of Two Karstic Streams in Germany
The genus Gongrosira Kützing, often reported from freshwater tufa-stromatolites, was found to represent most likely a collective morphotype formed by several genera nested within the Ulvophyceae.