Lemon trees showed less response to citrus greening disease pathogen than orange trees

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Citrus greening disease was first found in Florida in 2005. Since then, manufacturing of oranges within the United States for processing has declined by 72 % between the 2007-2008 rising season and the 2017-2018 rising season, primarily in Florida. The disease was found in California in 2012, and now the state is starting to see a speedy improve of citrus greening disease.

As there’s presently no treatment for citrus greening disease, many growers are involved about its speedy unfold and plenty of plant pathologists are targeted on studying extra concerning the difficult nature of this disease. To add to this rising physique of data about citrus greening disease, a bunch of scientists working in California, New York, and Washington in contrast the early responses of two citrus varieties, Lisbon lemon and Washington navel orange trees, to an infection by Liberibacter asiaticus, the pathogen that causes citrus greening disease.

These scientists performed a complete molecular evaluation that showed that Lisbon lemon trees had less of a molecular response to the pathogen than Washington navel orange trees. In half, this may be as a result of leaves of contaminated lemons tended to accumulate micronutrients, which led to less of an influence on photosynthesis. Additionally, protease inhibitors, necessary for plant protection, have been upregulated in lemons.

“These results may be important for developing varieties of citrus that are more tolerant or perhaps resistant to the HLB pathogen,” mentioned Carolyn Slupsky, a UC Davis-based techniques biologist concerned with the analysis. “Our research highlights some key features that differentiate more tolerant from more susceptible varieties of citrus and may be used to develop new cultivars that are resistant to the effects of this pathogen.”

This examine is the primary to analyze the influence of the citrus greening disease pathogen on citrus metabolism prior to symptom growth. “Understanding early response is important,” added Slupsky. “As it may also help in developing technologies to detect the disease earlier.”


Novel effector biology analysis offers insights into devastating citrus greening disease


More info:
Elizabeth L. Chin et al, Multi-omics Comparison Reveals Landscape of Citrus limon and Citrus sinensis Response to ‘Candidatus Liberibacter asiaticus’, PhytoFrontiers (2021). DOI: 10.1094/PHYTOFR-09-20-0018-R

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American Phytopathological Society

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Lemon trees showed less response to citrus greening disease pathogen than orange trees (2021, May 12)
retrieved 12 May 2021
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