Pathogen defense mechanisms against Verticillium longisporum in Brassica napus L. Investigation on the role of sulfur-containing compounds

Publikation: Qualifikations-/StudienabschlussarbeitDissertation

Autoren

  • Sofia Isabell Rupp

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OriginalspracheEnglisch
QualifikationDoctor rerum naturalium
Gradverleihende Hochschule
Betreut von
Datum der Verleihung des Grades4 Juni 2020
ErscheinungsortHannover
PublikationsstatusVeröffentlicht - 2020

Abstract

Reduction in atmospheric sulfur deposition and the use of low-sulfur fertilizers in an intensified agriculture have led to a widespread nutrient disturbance in the crop production. Sulfur deficiency was observed and in parallel a higher susceptibility to biotic stresses. Sulfur-enhanced defense compounds were postulated. Recently, the spread of fungal pathogens such as Verticillium longisporum, a soil borne pathogenic fungus was observed resulting in high yield losses in the plant family Brassicaceae. This pathogen preferably infects the high sulfur-demanding crop species Brassica napus L. by entering through the roots and spreading via the xylem. Defense response of plants are linked to sulfur-containing compounds including glucosinolates (GSLs), whereby abiotic and biotic stress factors can cause increased synthesis rates. A number of biological processes such as innate immunity in plants are under circadian control. Therefore, pathogens seem to carry out their attacks at specific time periods during the day.

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Pathogen defense mechanisms against Verticillium longisporum in Brassica napus L. Investigation on the role of sulfur-containing compounds. / Rupp, Sofia Isabell.
Hannover, 2020. 229 S.

Publikation: Qualifikations-/StudienabschlussarbeitDissertation

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abstract = "Reduction in atmospheric sulfur deposition and the use of low-sulfur fertilizers in an intensified agriculture have led to a widespread nutrient disturbance in the crop production. Sulfur deficiency was observed and in parallel a higher susceptibility to biotic stresses. Sulfur-enhanced defense compounds were postulated. Recently, the spread of fungal pathogens such as Verticillium longisporum, a soil borne pathogenic fungus was observed resulting in high yield losses in the plant family Brassicaceae. This pathogen preferably infects the high sulfur-demanding crop species Brassica napus L. by entering through the roots and spreading via the xylem. Defense response of plants are linked to sulfur-containing compounds including glucosinolates (GSLs), whereby abiotic and biotic stress factors can cause increased synthesis rates. A number of biological processes such as innate immunity in plants are under circadian control. Therefore, pathogens seem to carry out their attacks at specific time periods during the day.",
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T2 - Investigation on the role of sulfur-containing compounds

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PY - 2020

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AB - Reduction in atmospheric sulfur deposition and the use of low-sulfur fertilizers in an intensified agriculture have led to a widespread nutrient disturbance in the crop production. Sulfur deficiency was observed and in parallel a higher susceptibility to biotic stresses. Sulfur-enhanced defense compounds were postulated. Recently, the spread of fungal pathogens such as Verticillium longisporum, a soil borne pathogenic fungus was observed resulting in high yield losses in the plant family Brassicaceae. This pathogen preferably infects the high sulfur-demanding crop species Brassica napus L. by entering through the roots and spreading via the xylem. Defense response of plants are linked to sulfur-containing compounds including glucosinolates (GSLs), whereby abiotic and biotic stress factors can cause increased synthesis rates. A number of biological processes such as innate immunity in plants are under circadian control. Therefore, pathogens seem to carry out their attacks at specific time periods during the day.

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