Pseudomonas marginalis

Pseudomonas marginalis is a soil-dwelling bacterium in the family Pseudomonadaceae, originally described in 1918 and formally named by Stevens in 1925, that causes soft rot in plant tissue. It infects a range of crop and ornamental species, including poinsettia, lettuce and crucifers such as canola and mustard, and produces the characteristic breakdown seen in soft-rotted chicory and similar vegetables. Based on 16S rRNA sequence analysis the species has been placed within the Pseudomonas fluorescens group, and it is divided into three recognized pathovars: alfalfae, marginalis and pastinacae. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/