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x-disease

[ eks-di-zeez ]

noun

, Veterinary Pathology.
  1. Also X-disease. hyperkeratosis ( def 2 ).


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Word History and Origins

Origin of x-disease1

First recorded in 1915–20
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Example Sentences

Early detection of the Little Cherry virus and X-disease bacteria is vital for growers.

The phytoplasma of the X-disease pathogen causes the obstruction of phloem, which inhibits the transfer of carbohydrates created by photosynthesis to other areas of a plant, such as new shoots, roots and developing fruit, Galimba said.

Two pathogens cause smaller, discolored, misshapen and bitter-tasting cherries: Little Cherry Virus-2 and X-disease, a bacteria spread by grafting and small leaf-hopping insects.

DuPont noted that the cherry-growing regions of Central Washington went from several hundred trees testing positive for X-disease in 2016 to thousands of infected trees five years later, with about 36% of the samples sent to WSU testing positive for X-disease by 2020.

X-disease takes time to develop, with the first symptoms usually showing up a couple of years after infection.

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