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New study offers hope for halting incurable citrus disease
Date:9/26/2013

s. They also found that normal metabolism of sucrose, a sugar also key to photosynthesis, was disrupted.

Furthermore, the researchers discovered that HLB interfered with the regulation of hormones such as salicylic acid, jasmonic acid and ethylene, which are "the backbone" of the plant innate immune response. And they found that infected trees also had changes in the metabolism of important amino acids that serve as a reservoir for organic nitrogen in many plants. The nitrogen is required to stimulate the plant immune response.

Cause for hope:

The researchers anticipate that these discoveries will lead the way to new tests for detecting the bacteria and thus the presence of HLB in orchard trees.

They also suggest that it may be possible to develop several short-term treatments for infected trees. Such therapeutic procedures might rely on using hormones and other small molecules to restore the infected tree's normal metabolism or boosting the tree's innate immune response to effectively fight the infection.


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Contact: Pat Bailey
pjbailey@ucdavis.edu
530-752-9843
University of California - Davis
Source:Eurekalert

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