1887

Abstract

The causal agent of bacterial gall of carrots ( L.) is named gen. nov., sp. nov. and is placed in the family . This bacterium is a gram-negative, capsulated, straight or curved rod with polar flagella or lateral flagella or both and a cell diameter of 0.9 to 1.3 μm. The bacterial cells accumulate poly-β-hydroxybutyrate granules. Glucose is metabolized oxidatively. The bacteria are positive for oxidase and catalase reactions and are susceptible to vibriostatic agent 0/129 phosphate. Colonies grown on dilute potato-peptone-glucose agar medium are white, tough, and highly plicated; when grown on dilute yeast extract-peptone-glucose agar medium, they are yellowish white. No water-soluble pigment is produced. In liquid media the bacterium grows as abundant, primarily globular floes. can use various kinds of carbon sources, including sugars, polysaccharides, and sugar alcohols, but not benzene derivatives. The guanine-plus-cytosine content of the deoxyribonucleic acid is 66.9 to 70.6 mol%. The ubiquinone is Q8. This bacterium induces gall formation on roots of carrots. Strain H6 is designated the type strain and has been deposited with the American Type Culture Collection (ATCC 43778) and the International Collection of Microorganisms from Plants, New Zealand (ICMP 9400) together with four other reference strains (ATCC 43776, ATCC 43777, ATCC 43779, and ATCC 43780; ICMP 9398, ICMP 9399, ICMP 9401, and ICMP 9402).

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/content/journal/ijsem/10.1099/00207713-38-3-233
1988-07-01
2020-01-24
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http://instance.metastore.ingenta.com/content/journal/ijsem/10.1099/00207713-38-3-233
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