AI Article Synopsis
- A new strain of Spiroplasma, named SMA(T), was discovered in Poland from white satin moth larvae and is unique from other known Spiroplasma species.
- Using microscopy techniques, researchers found that SMA(T) had a helical shape and a single membrane, indicating it lacks a cell wall.
- SMA(T) can grow in specific media at 30°C, utilizes glucose and arginine for energy, and shows limited genetic similarity to other strains, leading to its classification as a new species, Spiroplasma leucomae.
Article Abstract
Spiroplasma sp. strain SMA(T), isolated in Poland from white satin moth larvae, Leucoma salicis L. (Lepidoptera: Lymantriidae), was serologically distinct from other Spiroplasma species, groups or subgroups. Dark-field microscopy of the cells revealed the classical helical shape and subsequent transmission electron microscopy revealed cells surrounded by only a single cell membrane (lacking a cell wall). Growth of strain SMA(T) occurred in M1D medium at 30 degrees C. Strain SMA(T) catabolized both glucose and arginine, but did not hydrolyse urea. The G+C content of the DNA was 24+/-1 mol% as determined by melting temperature analysis. Serological analysis revealed a very weak cross-reactivity (positive reaction only up to a 1 : 80 dilution) with two Spiroplasma strains, 277F (Spiroplasma sp. group I-4) and LB-12 (Spiroplasma sp. group I-5). Strain SMA(T) (=ATCC BAA-521T=NBRC 100392T) is designated the type strain of a novel species, Spiroplasma leucomae sp. nov. (class Mollicutes: order Entomoplasmatales: family Spiroplasmataceae).
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| http://dx.doi.org/10.1099/ijs.0.63685-0 | DOI Listing |
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