Related by context. Frequent words. (Click for all words.) 61 extremophiles 56 Penicillium 56 Geobacter 55 microbial ecology 55 microorganism 55 Toxoplasma 54 Bacillus subtilis 54 Cyanobacteria 54 methanogens 54 mycobacterial 53 microbe 53 microorganisms 53 Bifidobacterium 53 astrobiologists 52 unicellular 52 archaea 52 Archaea 51 secondary metabolites 51 ALH# 51 protozoan 51 microbes 51 GanedenBC# 51 hydrothermal vents 51 biologically active 51 foraminifera 50 Enterococcus 50 metagenomic 50 metagenomics 50 Clostridium 50 diatom 50 Caenorhabditis elegans 50 B. anthracis 50 stable isotope 50 baker yeast 50 Bt toxin 50 stromatolites 50 Microorganisms 50 Toxoplasma gondii 50 hydrothermal vent 50 nitrogen fixation 50 microfossils 49 inorganic compounds 49 microscopic organisms 49 microbiota 49 nematode worms 49 abiotic 49 antimicrobial compounds 49 trehalose 49 alkanes 49 Lovley 49 gut microbes 49 Carbon sequestration 49 microgravity environment 49 microbial 49 slime molds 49 zeolites 49 rotifers 49 alga 49 marine sediments 49 Mycobacterium 48 polycyclic aromatic hydrocarbons PAHs 48 yeast 48 Zebrafish 48 nanobubbles 48 amphipods 48 Microbial 48 fungal pathogen 48 Salmonella bacteria 48 bacterium 48 fungi 48 gut microbiota 48 lectins 48 Synthetic biology 48 Neu5Gc 48 volcanic vents 48 micro organism 48 naturally occurring bacteria 48 Algal 48 biological molecules 48 Salmonella typhimurium 48 bacteria 48 mycobacteria 48 inoculant 47 mycorrhizal fungi 47 bacterial spores 47 Varki 47 nanobacteria 47 S. cerevisiae 47 RNA sequences 47 lactic acid bacteria 47 microenvironments 47 organisms 47 cyanobacteria 47 single celled 47 isotope ratios 47 Y. pestis 47 metabolomic 47 Nematodes 47 Mass spectrometry 47 clathrates 47 naturally occurring