Zur Kurzanzeige

Studies on the effect of exogenous amino acid application on nematodes

dc.contributor.advisorGrundler, Florian M. W.
dc.contributor.authorBlümel, Roman Christopher
dc.date.accessioned2020-04-27T08:23:23Z
dc.date.available2020-04-27T08:23:23Z
dc.date.issued02.03.2020
dc.identifier.urihttp://hdl.handle.net/20.500.11811/8174
dc.description.abstractPlant parasitic nematodes are considered as key pathogens in agricultural crop production. They cause substantial yield losses in numerous crops and across all climatic regions worldwide. Antagonistic effects on various life stages of economically relevant plant pathogenic nematode species were reported for different amino acids (aa). In order to screen for effects induced by exogenous application and to reveal their underlying mechanistic methionine (Met), lysine (Lys), threonine (Thr), isoleucine (Ile), 2-ketobutyric acid (Ket), homoserine (Hom) and tryptophan (Trp) were tested on the free-living nematode Caenorhabditis elegans and the plant parasite Heterodera schachtii.
Try applications reduced the activity and development of C. elegans, whereas only Ket affected the activity of H. schachtii. Interestingly, soaking J2 stage nematodes in aa solutions for twenty-four hours, induced a sex ratio change for both Lys isomers. The strongest effects were observed when aa were supplemented to the nutrient-medium in a monoxenic culture of the host plant, Arabidopsis thaliana. This approach reduced the number of female nematodes per plant for Iso, Met, Thr, and Ket. Additionally, slight negative effects could be detected on the adult female sizes. Interestingly, these effective aa all belong to the aspartate pathway. Herein, in particular the plant inherent enzyme methionine-γ-lyase (MGL) was identified as possible key functional element.
dc.language.isoeng
dc.rightsIn Copyright
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectnematode
dc.subjectamino acid
dc.subject.ddc580 Pflanzen (Botanik)
dc.subject.ddc630 Landwirtschaft, Veterinärmedizin
dc.titleStudies on the effect of exogenous amino acid application on nematodes
dc.typeDissertation oder Habilitation
dc.publisher.nameUniversitäts- und Landesbibliothek Bonn
dc.publisher.locationBonn
dc.rights.accessRightsopenAccess
dc.identifier.urnhttps://nbn-resolving.org/urn:nbn:de:hbz:5-57648
ulbbn.pubtypeErstveröffentlichung
ulbbnediss.affiliation.nameRheinische Friedrich-Wilhelms-Universität Bonn
ulbbnediss.affiliation.locationBonn
ulbbnediss.thesis.levelDissertation
ulbbnediss.dissID5764
ulbbnediss.date.accepted2019-10-30
ulbbnediss.instituteLandwirtschaftliche Fakultät : Institut für Nutzpflanzenwissenschaften und Ressourcenschutz (INRES)
ulbbnediss.fakultaetLandwirtschaftliche Fakultät
dc.contributor.coRefereeHallmann, Johannes


Dateien zu dieser Ressource

Thumbnail

Das Dokument erscheint in:

Zur Kurzanzeige

Die folgenden Nutzungsbestimmungen sind mit dieser Ressource verbunden:

InCopyright