Pseudomonas cichorii
Encyclopedia
Pseudomonas cichorii is a Gram-negative
soil
bacterium that is pathogenic to plant
s. It has a wide host range, and can have an important economical impact on lettuce
, celery
and chrysanthemum
crops.. P. cichorii was first isolated on endive
s (Cichorium endivia), from which it derives its name. It produces 6-aminopenicillanic acid
. Based on 16S rRNA analysis, P. cichorii has been placed in the P. syringae group.
Gram-negative
Gram-negative bacteria are bacteria that do not retain crystal violet dye in the Gram staining protocol. In a Gram stain test, a counterstain is added after the crystal violet, coloring all Gram-negative bacteria with a red or pink color...
soil
Soil
Soil is a natural body consisting of layers of mineral constituents of variable thicknesses, which differ from the parent materials in their morphological, physical, chemical, and mineralogical characteristics...
bacterium that is pathogenic to plant
Plant
Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...
s. It has a wide host range, and can have an important economical impact on lettuce
Lettuce
Lettuce is a temperate annual or biennial plant of the daisy family Asteraceae. It is most often grown as a leaf vegetable. It is eaten either raw, notably in salads, sandwiches, hamburgers, tacos, and many other dishes, or cooked, as in Chinese cuisine in which the stem becomes just as important...
, celery
Celery
Apium graveolens is a plant species in the family Apiaceae commonly known as celery or celeriac , depending on whether the petioles or roots are eaten: celery refers to the former and celeriac to the latter. Apium graveolens grows to 1 m tall...
and chrysanthemum
Chrysanthemum
Chrysanthemums, often called mums or chrysanths, are of the genus constituting approximately 30 species of perennial flowering plants in the family Asteraceae which is native to Asia and northeastern Europe.-Etymology:...
crops.. P. cichorii was first isolated on endive
Endive
Endive , Cichorium endivia, is a leaf vegetable belonging to the daisy family. Endive can be cooked or used raw in salads.-Background:Endive is also a common name for some types of chicory...
s (Cichorium endivia), from which it derives its name. It produces 6-aminopenicillanic acid
6-APA
6-APA is the chemical compound -6-aminopenicillanic acid.-Use:6-APA is the core of penicillins. It is obtained from the fermentation brew of the Penicillium mold and used as the main starting block for the preparation of numerous semisynthetic penicillins.-Manufacture:This useful compound is made...
. Based on 16S rRNA analysis, P. cichorii has been placed in the P. syringae group.