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231225s2016 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-03-16-0271-RE
|2 doi
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|a pubmed24n0976.xml
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Ramadugu, Chandrika
|e verfasserin
|4 aut
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| 245 |
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|a Long-Term Field Evaluation Reveals Huanglongbing Resistance in Citrus Relatives
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 20.11.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Citrus huanglongbing (HLB) is a destructive disease with no known cure. To identify sources of HLB resistance in the subfamily Aurantioideae to which citrus belongs, we conducted a six-year field trial under natural disease challenge conditions in an HLB endemic region. The study included 65 Citrus accessions and 33 accessions belonging to 20 other closely related genera. For each accession, eight seedling trees were evaluated. Based on quantitative polymerase chain reaction analysis of the pathogen titers and disease symptoms, eight disease-response categories were identified. We report two immune, six resistant, and 14 tolerant accessions. Resistance and tolerance observed in different accessions may be attributed to a multitude of factors, including psyllid colonization ability, absence of pathogen multiplication, transient replication of the bacterium, lack of pathogen establishment in the plant, delayed infection, or recovery from infection. Most citrus cultivars were considered susceptible: 15 citrons, lemons, and limes retained leaves in spite of the disease status. Resistance and high levels of field tolerance were observed in many noncitrus genera. Disease resistance/tolerance was observed in Australian citrus relative genera Eremocitrus and Microcitrus, which are sexually compatible with citrus and may be useful in future breeding trials to impart HLB resistance to cultivated citrus
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|a Journal Article
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1 |
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|a Keremane, Manjunath L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Halbert, Susan E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Duan, Yong Ping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Roose, Mikeal L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Stover, Ed
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Richard F
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 100(2016), 9 vom: 01. Sept., Seite 1858-1869
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|x 0191-2917
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|g volume:100
|g year:2016
|g number:9
|g day:01
|g month:09
|g pages:1858-1869
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| 856 |
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|u http://dx.doi.org/10.1094/PDIS-03-16-0271-RE
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