Summary: Actinobacteria constitute one of the largest phyla among Bacteria and represent gram-positive bacteria with a high G+C content in their DNA. This bacterial group includes microorganisms exhibiting a wide spectrum of morphologies, from coccoid to fragmenting hyphal forms, as well as possessing highly variable physiological and metabolic properties. Furthermore, Actinobacteria members have adopted different lifestyles, and can be pathogens (e.g., Corynebacterium, Mycobacterium, Nocardia, Tropheryma, and Propionibacterium), soil inhabitants (Streptomyces), plant commensals (Leifsonia), or gastrointestinal commensals (Bifidobacterium). The divergence of Actinobacteria from other bacteria is ancient, making it impossible to identify the phylogenetically closest bacterial group to Actinobacteria. Genome sequence analysis has revolutionized every aspect of bacterial biology by enhancing the understanding of the genetics, physiology, and evolutionary development of bacteria. Various actinobacterial genomes have been sequenced, revealing a wide genomic heterogeneity probably as a reflection of their biodiversity. This review provides an account of the recent explosion of actinobacterial genomics data and an attempt to place this in a biological and evolutionary context.
sour_creme on July 28th, 2018 at 04:26 UTC »
raindrops hit the ground aerosolizing the dirt containing the chemicals, carried in the air to reach our nostrils.
https://www.smithsonianmag.com/smart-news/high-speed-video-shows-when-smell-rain-begins-180953958/
in cities where there are a lot of dirt and feces, those same raindrops aerosolize all that shit on the concrete and gives us that wet dog smell when it starts raining.
NISCBTFM on July 28th, 2018 at 03:00 UTC »
I don't think I've ever met someone who doesn't enjoy the "smell of rain". There's just something soothing about it. That makes sense about the seeking out water aspect. Very cool.
wateruncle12 on July 28th, 2018 at 02:39 UTC »
Also, the smell is called petrichor.