Survey of Fusarium species associated with crown rot of wheat and barley in eastern Australia

Backhouse, David; Abubakar, Askar; Burgess, L. W.; Dennis, J. I.; Hollaway, Grant; Wildermuth, G. B.; Wallwork, H.; Henry, Francis John

doi:10.1071/ap04010

Cited by 133 publications

(77 citation statements)

References 12 publications

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“…The present study showed as in barley, differently from what reported by Mudge et al (2006) in soft wheat, the colonization by F. pseudograminearum strain CS3427 was limited to the basal portions (up to segment II), in accordance to what reported by Backhouse et al (2004) in FCR investigations conducted in Australia.…”

Section: Discussioncontrasting

confidence: 42%

Comparative studies about fungal colonization and deoxynivalenol translocation in barley plants inoculated at the base with Fusarium graminearum, Fusarium culmorum and Fusarium pseudograminearum

Pecoraro

Giannini

Beccari

et al. 2018

AFSci

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Fusarium crown rot (FCR), an important disease of wheat and barley, is mainly caused by Fusarium graminearum, F. culmorum and F. pseudograminearum, which are also responsible for mycotoxin production. This is the first comparative investigation of their colonization on barley plants after stem base inoculation. At plant maturity, FCR symptoms were visually evaluated, fungal biomass was quantified by Real-Time quantitative PCR and deoxynivalenol (DON) was detected by enzyme-linked immunosorbent assay (ELISA). All the inoculated strains caused the typical FCR necrotic symptoms. Real-Time PCR analysis showed that F. graminearum and F. culmorum were present in the head tissues, while F. pseudograminearum colonized only up to the area including the second node of the stem. Conversely, DON was detected up to the head for all the three species. This study shows that, as already demonstrated in previous research for wheat, DON may be detected up to the head as a consequence of stem base infection by the three FCR agents.

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Section: Discussioncontrasting

confidence: 42%

Comparative studies about fungal colonization and deoxynivalenol translocation in barley plants inoculated at the base with Fusarium graminearum, Fusarium culmorum and Fusarium pseudograminearum

Pecoraro

Giannini

Beccari

et al. 2018

AFSci

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“…Smith) Saccardo and Fusarium graminearum Schwabe (teleomorph ¼ Gibberella zeae (Schwein) Petch) are two of the most important pathogens causing head blight (HB) of wheat (Backhouse et al 2004;Miedaner et al 2008;Parry et al 1994;Paulitz et al 2002;Waalwijk et al 2003). With recent epidemics in Asia, Europe and South America (Goswami & Kistler 2004), HB has re-emerged as a major threat to global production of wheat and barley with an estimated loss of over $3 billion in the USA and Canada during the 1990s (Windels 2000).…”

Section: Introductionmentioning

confidence: 97%

Fusarium culmorum is a single phylogenetic species based on multilocus sequence analysis

et al. 2010

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“…is also associated with this disease while other species (such as F. avenaceum (Corda:Fr) Sacc., F. crookwellense Burgess, Nelson & Toussoun and F. graminearum Schw.) are isolated infrequently (Backhouse et al, 2004). The disease has become more prevalent in the last two decades due to widespread adoption of conservation farming techniques which retain infected standing stubble between seasons.…”

Section: Introductionmentioning

confidence: 99%

Pyramiding QTL increases seedling resistance to crown rot (Fusarium pseudograminearum) of wheat (Triticum aestivum)

et al. 2010

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Crown rot of wheat (Triticum aestivum), predominantly caused by the fungus Fusarium pseudograminearum, has become an increasingly important disease constraint in many winter cereal production regions in Australia. Our group has previously identified a range of quantitative trait loci (QTL) for partial resistance to crown rot in various bread wheat sources. Here we report on work that has assessed the effectiveness of pyramiding QTL to improve resistance to crown rot. Two doubled haploid populations were analysed -one from a cross between two previously characterised sources of partial seedling resistance (2-49 and W21MMT70; n = 208) and one from a cross between 2-49 and the commercial variety Sunco, a source of adult field resistance (n = 134). Both populations were phenotyped for seedling resistance to crown rot. Microsatellite and DArT markers were used to construct whole genome linkage maps for use in composite interval mapping (CIM) to identify QTL. Three QTL were detected in both trials conducted on the 2-49/W21MMT70 population. These were located on chromosomes 1D (QCr.usq-1D.1), 3B (QCr.usq-3B.1) and 7A. QCr.usq-1D.1 and the previously undetected 7A QTL were inherited from 2-49. QCr.usq-3B.1, inherited from W21MMT70, was the most significant of the QTL, explaining up to 40.5 % of the phenotypic variance. Three QTL were identified in multiple trials of the Sunco/2-49 population. These were located on chromosomes 1D (QCr.usq-1D.1), 2B (QCr.usq-2B.2) and 4B (QCr.usq-4B.1). Only QCr.usq-2B.2 was inherited from Sunco. QCr.usq-4B.1 was the most significant of these QTL, explaining up to 19.1 % of the phenotypic variance.In the 2-49/W21MMT70 population several DH lines performed significantly better than either parent, with the best recording an average disease severity rating of only 3.8 % of that scored by the susceptible check cultivar Puseas. These lines represent a new level of seedling crown rot resistance in wheat.

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Survey of Fusarium species associated with crown rot of wheat and barley in eastern Australia

Abstract: Abstract. Fusarium species associated with crown rot were isolated and identified from 409 wheat,

Cited by 133 publications

References 12 publications

Comparative studies about fungal colonization and deoxynivalenol translocation in barley plants inoculated at the base with Fusarium graminearum, Fusarium culmorum and Fusarium pseudograminearum

Comparative studies about fungal colonization and deoxynivalenol translocation in barley plants inoculated at the base with Fusarium graminearum, Fusarium culmorum and Fusarium pseudograminearum

Fusarium culmorum is a single phylogenetic species based on multilocus sequence analysis

Pyramiding QTL increases seedling resistance to crown rot (Fusarium pseudograminearum) of wheat (Triticum aestivum)

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