Leifsonia

Abstract

Leif.so'ni.a. N.L. fem. n. Leifsonia named after Einar Leifson, an American microbiologist who isolated and described the first organism of this genus. Actinobacteria / Actinobacteria / Micrococcales / Microbacteriaceae / Leifsonia Young cultures produce slender (mostly 0.3–0.6 μm in diameter) irregular rods or filaments. Primary branching and V‐forms typically occur . Cultures a week or more old usually contain shorter rods, but some cells may be coccoid. No aerial mycelium is produced. Nonsporeforming. Some species are motile by means of peritrichous flagella. Gram‐stain‐positive cell‐wall architecture. Non‐acid‐fast. Chemo‐organotrophs , metabolism is primarily respiratory with oxygen as the terminal electron acceptor. Mostly catalase‐positive . Oxidase reaction varies with strains or experiments. Acids are produced oxidatively rather weakly from carbohydrates. Most species grow well on standard laboratory media at near neutral pH. Some species are nutritionally very exacting. Mesophilic, optimum temperature ~24–30°C; growth range ~4–42°C. DNA G + C content ( mol %): 66–70.7. Type species : Leifsonia aquatica ( ex Leifson 1962) Evtushenko, Dorofeeva, Subbotin, Cole and Tiedje 2000, 377 VP (“ Corynebacterium aquaticum ” Leifson 1962, 161).

Temperature- and Nutrients-Induced Phenotypic Changes of Antarctic Green Snow Bacteria Probed by High-Throughput FTIR Spectroscopy

“…Interesting results were observed for Leifsonia isolates, where Leifsonia antarctica BIM B-1671 did not grow on minimal media while other isolates did. According to the previously reported studies, most of the Leifsonia species usually grow well on media containing rich organic nitrogen sources—yeast extract or peptone—but some species require the presence of growth factors such as amino acids or vitamins [ 84 ]. Thus, we can hypothesize that isolate Leifsonia antarctica BIM B-1671 belongs to another species.…”

Calcium promotes persistent soil organic matter by altering microbial transformation of plant litter

“…However, we cannot test this relationship directly, as we lack information about changes in the absolute abundance and activity of these populations. Second, Ca treatment enhanced the relative abundance of surface-colonizing bacterial taxa, including Actinomycetota, that form hyphae such as Nocardioides, Rhodococcus, Leifsonia, Streptomyces, Cellulomonas, Agromyces, and Pseudonocardia [35][36][37][38] , and surface motile or surfaceadhering populations such as Devosia, Hyphomicrobium, Haliangium, Sorangium, members of Fibrobacterota, Asticcacaulis, Luteimonas, and Adhaeribacter [39][40][41][42][43][44][45][46] (Supplementary Figs. 7, 8).…”

Calcium promotes persistent soil organic matter by altering microbial transformation of plant litter

“…However, we cannot test this relationship directly, as we lack information about changes in the absolute abundance of these populations. Second, Ca treatment enhanced the relative abundance of surface-colonizing bacterial taxa, including actinobacteria that form mycelia such as Nocardioides, Rhodococcus, Leifsonia, Streptomyces, Cellulomonas, Agromyces, and Pseudonocardia [33][34][35][36] , and surface motile or surface-adhering populations such as Devosia, Hyphomicrobium, Haliangium, Sorangium, members of Fibrobacterota, Asticcacaulis, Luteimonas, and Adhaeribacter [37][38][39][40][41][42][43][44] (Supplementary Figs. 7, 8).…”