Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 503475
Title Verticillium longisporum, the invisible threat to oilseed rape and other brassicaceous plant hosts
Author(s) Depotter, Jasper R.L.; Deketelaere, Silke; Inderbitzin, Patrik; Tiedemann, Andreas Von; Höfte, Monica; Subbarao, Krishna V.; Wood, Thomas A.; Thomma, Bart P.H.J.
Source Molecular Plant Pathology 17 (2016)7. - ISSN 1464-6722 - p. 1004 - 1016.
DOI http://dx.doi.org/10.1111/mpp.12350
Department(s) Laboratory of Phytopathology
EPS
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Amphidiploid - Arabidopsis - Brassica - Disease management - Host range - Pathogenicity - Vascular wilt
Abstract

Introduction: The causal agents of Verticillium wilts are globally distributed pathogens that cause significant crop losses every year. Most Verticillium wilts are caused by V. dahliae, which is pathogenic on a broad range of plant hosts, whereas other pathogenic Verticillium species have more restricted host ranges. In contrast, V. longisporum appears to prefer brassicaceous plants and poses an increasing problem to oilseed rape production. Taxonomy: Kingdom Fungi; Phylum Ascomycota; Class Sordariomycetes; Subclass Hypocreomycetida; Family Plectosphaerellaceae; genus Verticillium. Disease symptoms: Dark unilateral stripes appear on the stems of apparently healthy looking oilseed rape plants at the end of the growing season. Microsclerotia are subsequently formed in the stem cortex beneath the epidermis. Genome: Verticillium longisporum is the only non-haploid species in the Verticillium genus, as it is an amphidiploid hybrid that carries almost twice as much genetic material as the other Verticillium species as a result of interspecific hybridization. Disease management: There is no effective fungicide treatment to control Verticillium diseases, and resistance breeding is the preferred strategy for disease management. However, only a few Verticillium wilt resistance genes have been identified, and monogenic resistance against V. longisporum has not yet been found. Quantitative resistance exists mainly in the Brassica C-genome of parental cabbage lines and may be introgressed in oilseed rape breeding lines. Common name: Oilseed rape colonized by V. longisporum does not develop wilting symptoms, and therefore the common name of Verticillium wilt is unsuitable for this crop. Therefore, we propose 'Verticillium stem striping' as the common name for Verticillium infections of oilseed rape.

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