The origin of eukaryotes remains unclear 1 , 2 , 3 – 4 . Current data suggest that eukaryotes
may have emerged from an archaeal lineage known as ‘Asgard’ archaea 5 , 6 . Despite the …

Many strategies have been used to increase the number of bacterial cells that can be grown
from environmental samples but cultivation efficiency remains a challenge for microbial …

One thermophilic (strain IMO-1 T ) and two mesophilic (strains KIBI-1 T and YMTK-2 T ) non-spore-forming,
non-motile, Gram-negative, multicellular filamentous micro-organisms, which …

Background 16S rRNA gene pyrosequencing approach has revolutionized studies in microbial
ecology. While primer selection and short read length can affect the resulting microbial …

Background Host-symbiont co-speciation and reductive genome evolution have been
commonly observed among obligate endocellular insect symbionts, while such examples have …

Microbiologists have been using agar growth medium for over 120 years. It revolutionized
microbiology in the 1890s when microbiologists were seeking effective methods to isolate …

The microbial diversity of two types of methanogenic granular sludge, mesophilic (35 C) and
thermophilic (55 C), which had been treating sucrose/propionate/acetate-based artificial …

Polyphosphate-accumulating bacteria that were previously isolated from activated sludge
and exhibited high phosphate removal activity were studied taxonomically and …

16S rRNA-targeted in situ hybridization combined with confocal laser scanning microscopy
was used to elucidate the spatial distribution of microbes within two types of methanogenic …

A phylogenetically novel aerobic bacterium was isolated from an anaerobic–aerobic sequential
batch reactor operated under enhanced biological phosphorus removal conditions for …