Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 111, Issue 1, Pages 105-110Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1314168110
Keywords
plant protection; induced plant defense; matrix-free LDI-MSI
Categories
Funding
- German Research Foundation [Deutsche Forschungsgemeinschaft (DFG)] [HO4380/1, SCHN 450/10]
- Interfaculty Council for Development Cooperation, University of Leuven
- cooperation europeenne dans le domaine de la recherche scientifique et technique action [872]
- European Union 7th Framework Programme [305259]
- Dutch Polymer Institute
- Thuringer Ministerium fur Bildung, Wissenschaft, und Kultur [B515-07008]
- DFG
Ask authors/readers for more resources
The global yield of bananas-one of the most important food crops-is severely hampered by parasites, such as nematodes, which cause yield losses up to 75%. Plant-nematode interactions of two banana cultivars differing in susceptibility to Radopholus similis were investigated by combining the conventional and spatially resolved analytical techniques H-1 NMR spectroscopy, matrix-free UV-laser desorption/ionization mass spectrometric imaging, and Raman microspectroscopy. This innovative combination of analytical techniques was applied to isolate, identify, and locate the banana-specific type of phytoalexins, phenylphenalenones, in the R. similis-caused lesions of the plants. The striking antinematode activity of the phenylphenalenone anigorufone, its ingestion by the nematode, and its subsequent localization in lipid droplets within the nematode is reported. The importance of varying local concentrations of these specialized metabolites in infected plant tissues, their involvement in the plant's defense system, and derived strategies for improving banana resistance are highlighted.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available