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- aggregation classification "A1".
- aggregation creator B127645.
- aggregation creator B127646.
- aggregation creator person.
- aggregation creator person.
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- aggregation date "2004".
- aggregation format "application/pdf".
- aggregation hasFormat 301726.bibtex.
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- aggregation isPartOf urn:issn:0032-0781.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Biology and Life Sciences".
- aggregation title "Thermal and chlorophyll-fluorescence imaging distinguish plant-pathogen interactions at an early stage".
- aggregation abstract "Different biotic stresses yield specific symptoms, owing to their distinct influence on a plant's physiological status. To monitor early changes in a plant's physiological status upon pathogen attack, chlorophyll fluorescence imaging (Chl-FI) and thermography, which respectively visualize photosynthetic efficiency and transpiration, were carried out in parallel for two fundamentally different plant-pathogen interactions. These non-destructive imaging techniques were able to visualize infections at an early stage, before damage appeared. Under growth-room conditions, a robotized set-up captured time series of visual, thermal and chlorophyll fluorescence images from infected regions on attached leaves. As a first symptom of the plant-virus interaction between resistant tobacco and tobacco mosaic virus (TMV), thermal imaging detected a local rise in temperature while Chi-FI monitored a co-localized increase in fluorescence intensity. Chl-FI also revealed pre-symptomatic high-intensity spots for the plant-fungus system sugar beet-Cercospora beticola. Concomitantly, spots of lower temperature were monitored with thermography, in marked contrast with our observations on TMV-infection in tobacco. Knowledge of disease signatures for different plant-pathogen interactions could allow early identification of emerging biotic stresses in crops, facilitating the containment of disease outbreaks. Presymptomatic monitoring clearly opens perspectives for quantitative screening for disease resistance, either on excised leaf pieces or attached leaves.".
- aggregation authorList BK328097.
- aggregation endPage "896".
- aggregation issue "7".
- aggregation startPage "887".
- aggregation volume "45".
- aggregation aggregates 4141209.
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