Xanthomonas Campestris Pv. Translucens
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''Xanthomonas translucens'' is a species of
phytopathogenic bacteria Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungus, fungi, oomycetes, bacterium, bacteria, plant virus, vi ...
. It is the causal agent of
bacterial leaf streak Bacterial leaf streak (BLS), also known as black chaff, is a common bacterial disease of wheat. The disease is caused by the bacterial species ''Xanthomonas translucens'' pv. ''undulosa''. The pathogen is found globally, but is a primary problem ...
in of wheat and cereal crop. The bacterium is transmitted as a
seed-borne pathogen Plant disease epidemiology is the study of disease in plant populations. Much like diseases of humans and other animals, plant diseases occur due to pathogens such as bacteria, viruses, fungi, oomycetes, nematodes, phytoplasmas, protozoa, and para ...
. The transmission rate is very low but ensures serious outbreaks in the field under suitable conditions. The pathogen is a non-sporing,
aerobic Aerobic means "requiring air," in which "air" usually means oxygen. Aerobic may also refer to * Aerobic exercise, prolonged exercise of moderate intensity * Aerobics, a form of aerobic exercise * Aerobic respiration, the aerobic process of cellu ...
,
motile Motility is the ability of an organism to move independently using metabolic energy. This biological concept encompasses movement at various levels, from whole organisms to cells and subcellular components. Motility is observed in animals, mi ...
,
gram-negative Gram-negative bacteria are bacteria that, unlike gram-positive bacteria, do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. Their defining characteristic is that their cell envelope consists ...
, rod bacterium with a single polar flagellum.


Subspecies

( syn. '' X. campestris'' pv. ''translucens'') causes a
bacterial leaf streak of wheat Bacterial leaf streak (BLS), also known as black chaff, is a common bacterial disease of wheat. The disease is caused by the bacterial species ''Xanthomonas translucens'' pv. ''undulosa''. The pathogen is found globally, but is a primary problem ...
. is developed and presented in Schaad & Forster 1985. Xts medium is semi-selective for ''Xtt''. Although some problems with this
agar Agar ( or ), or agar-agar, is a jelly-like substance consisting of polysaccharides obtained from the cell walls of some species of red algae, primarily from " ogonori" and " tengusa". As found in nature, agar is a mixture of two components, t ...
are known, nothing better is available.


References


External links


Type strain of ''Xanthomonas translucens''
at Bac''Dive'' - the Bacterial Diversity Metadatabase translucens Bacteria described in 1917 {{gammaproteobacteria-stub