Taxonomic study of bacteria isolated from plants: proposal of Sphingomonas rosa sp. nov., Sphingomonas pruni sp. nov., Sphingomonas asaccharolytica sp. nov., and Sphingomonas mali sp. nov.

Researchers investigated 10 strains of bacteria that produce 3-ketolactose, found in plant roots. Through various tests, including DNA analysis, they identified four new species belonging to the genus Sphingomonas. These are Sphingomonas rosa, Sphingomonas pruni, Sphingomonas asaccharolytica, and Sphingomonas mali. Two strains previously identified as Chromobacterium lividum were also classified as Sphingomonas yanoikuyae. This study expands our understanding of the diversity of bacteria and their relationships with plants.

Takeuchi M et al (1995).

Int J Syst Bacteriol.

PubMed:

7537068

[Chemotaxonomic searches on vascular plants. The 3, 5, 4' trihydroxy 7-methoxyflavone, isolated from Fibigia eriocarpa D.C. grains (Crucifers)].

Boudjikanian A and Raynaud J (1974).

C R Acad Hebd Seances Acad Sci D.

PubMed:

4211327

Seizures and death on a white river float trip. Report of water hemlock poisoning.

White water rafting is becoming more popular in the US, but many people are unprepared and may find themselves in dangerous situations without access to medical help. In addition to drowning, there is a risk of poisoning from common plants like Cicuta douglasii. This plant is toxic and can be easily mistaken for wild parsnip or carrot. Physicians and poison control centers should be aware of common poisonous plants in their area to treat cases of poisoning.

Landers D, Seppi K and Blauer W (1985).

West J Med.

PubMed:

4013278