Identity and pathogenicity of Fusarium species associated with crown rot on wheat (Triticum spp.) in Turkey

Gebremariam, E. Shikur; Sharma‐Poudyal, Dipak; Paulitz, Timothy C.; Erginbaş-Orakci, Gül; Karakaya, Aziz; Dababat, Abdelfattah A.

doi:10.1007/s10658-017-1285-7

Cited by 60 publications

(51 citation statements)

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“…Of these species, F. pseudograminearum and F. graminearum are the two most common species in most of the sampling regions. In particular, F. pseudograminearum is the predominant species associated with the FCR of wheat in this region, similar to some other countries and regions, that is, Australia (Akinsanmi et al ., ), North America (Smiley et al ., ) and Turkey (Shikur Gebremariam et al ., ), where FCR occurred commonly. However, our results appear to be slightly dissimilar to those of a survey in five provinces of China, where F. asiaticum was viewed as the dominant species by another investigator (Zhang et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…Fusarium crown rot (FCR) is one of the most destructive soil-/ residue-borne diseases of wheat in many countries, including Australia (Wildermuth et al, 1997;Backhouse et al, 2004), South Africa (Van WyK et al, 1987), the countries and regions around the Mediterranean (Balmas, 1994;Burgess et al, 2001;Tunali et al, 2008;Shikur Gebremariam et al, 2018), Iran (Saremi et al, 2007), Chile (Moya-Elizondo et al, 2015), Spain (Agusti-Brisach et al, 2018), North America (Smiley and Patterson, 1996;Fernandez and Zentner, 2005;Fernandez and Holzgang, 2009;Moya-Elizondo et al, 2011) and China (Li et al, 2012;Zhang et al, 2015). Symptoms of FCR include seedling blight (Dyer et al, 2009), brown discoloration of the lower stems with an occasional pink coloration of the nodes or stems under the leaf sheaths, and whiteheads at maturity (Wallwork, 2000;Hollaway and Exell, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Diversity of theFusariumpathogens associated with crown rot in the Huanghuai wheat‐growing region of China

Zhou

Wang

et al. 2019

Environmental Microbiology

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Summary To investigate the distribution and diversity of the pathogens associated with Fusarium crown rot in the Huanghuai wheat‐growing region (HHWGR) of China, we collected wheat samples with symptomatic stem bases from seven provinces in the HHWGR between 2013 and 2016. A total of 1196 isolates obtained from 222 locations were identified as 9 Fusarium species based on morphological and molecular identification. Of these pathogen species, F. pseudograminearum was the dominant species. Furthermore, F. sinensis was isolated from the disease specimens and tested for virulence to wheat. The result of the pathogenicity revealed that an intraspecific differentiation existed in F. pseudograminearum; sequence analysis of the EF‐1α gene showed that 194 F. pseudograminearum isolates were differentiated into two distinct clades which closed to the strains from Australia and China respectively, but neither pathogenicity nor EF‐1α sequence was related to the geographic origins of these isolates. However, universal rice primers‐polymerase chain reaction showed a correlation with the geographical origins of the 194 isolates, which were divided into eight subclusters, the level of genetic diversity was higher within a geographical population than among the different populations. The results of these analyses can be directly used to facilitate disease monitoring and development of control strategies.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Diversity of theFusariumpathogens associated with crown rot in the Huanghuai wheat‐growing region of China

Zhou

Wang

et al. 2019

Environmental Microbiology

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“…Argentina) (Castañares et al, 2012). Fusarium pseudograminearum often co-exists in these regions with other FCR-causing Fusarium species, including F. culmorum, F. avenaceum, F. poae and F. graminearum, as well as fungal or oomycete pathogens, including the common root rot pathogen Bipolaris sorokiniana, the take-all pathogen Gaeumannomyces graminis and Pythium spp., which cause disease symptoms that are similar to those caused by FCR (Akinsanmi et al, 2004Chakraborty et al, 2006;Gebremariam et al, 2017;Smiley et al, 2005a;Tunali et al, 2008Tunali et al, , 2012. In Australia, F. pseudograminearum has been identified as the most frequent Fusarium species associated with FCR in several surveys conducted since the 1970s (Akinsanmi et al, 2004;Backhouse and Burgess 2002;Backhouse et al, 2004;Burgess et al, 1975;Khangura et al, 2013;McKnight and Hart, 1966).…”

Section: Introductionmentioning

confidence: 99%

Fusarium crown rot caused by Fusarium pseudograminearum in cereal crops: recent progress and future prospects

Kazan

Gardiner

2018

Molecular Plant Pathology

202

158

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Diseases caused by Fusarium pathogens inflict major yield and quality losses on many economically important plant species worldwide, including cereals. Fusarium crown rot (FCR), caused by Fusarium pseudograminearum, is a cereal disease that occurs in many arid and semi-arid cropping regions of the world. In recent years, this disease has become more prevalent, in part as a result of the adoption of moisture-preserving cultural practices, such as minimum tillage and stubble retention. In this pathogen profile, we present a brief overview of recent research efforts that have not only advanced our understanding of the interactions between F. pseudograminearum and cereal hosts, but have also provided new disease management options. For instance, significant progress has been made in the genetic characterization of pathogen populations, the development of new tools for disease prediction, and the identification and pyramiding of loci that confer quantitative resistance to FCR in wheat and barley. In addition, transcriptome analyses have revealed new insights into the processes involved in host defence. Significant progress has also been made in understanding the mechanistic details of the F. pseudograminearum infection process. The sequencing and comparative analyses of the F. pseudograminearum genome have revealed novel virulence factors, possibly acquired through horizontal gene transfer. In addition, a conserved pathogen gene cluster involved in the degradation of wheat defence compounds has been identified, and a role for the trichothecene toxin deoxynivalenol (DON) in pathogen virulence has been reported. Overall, a better understanding of cereal host-F. pseudograminearum interactions will lead to the development of new control options for this increasingly important disease problem. Taxonomy: Fusarium pseudograminearum O'Donnell & Aoki; Kingdom Fungi; Phylum Ascomycota; Subphylum Pezizomycotina; Class Sordariomycetes; Subclass Hypocreomycetidae; Order Hypocreales; Family Nectriaceae; Genus Fusarium. Disease symptoms: Fusarium crown rot caused by F. pseudograminearum is also known as crown rot, foot rot and root rot. Infected seedlings can die before or after emergence. If infected seedlings survive, typical disease symptoms are browning of the coleoptile, subcrown internode, lower leaf sheaths and adjacent stems and nodal tissues; this browning can become evident within a few weeks after planting or throughout plant development. Infected plants may develop white heads with no or shrivelled grains. Disease symptoms are exacerbated under water limitation. Identification and detection: Fusarium pseudograminearum macroconidia usually contain three to five septa (22-60.5 × 2.5-5.5 μm). On potato dextrose agar (PDA), aerial mycelia appear floccose and reddish white, with red or reddish-brown reverse pigmentation. Diagnostic polymerase chain reaction (PCR) tests based on the amplification of the gene encoding translation elongation factor-1a (TEF-1a) have been developed for molecular identification. Host range: All maj...

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“…Conversely, F. equiseti itself also acts as a plant pathogen with a broad host range and produces various toxins. In fact, it is a pathogen of multiple cereals, including wheat [9], corn [10], triticale, oats, and barley [11], and other crops, such as cowpea [12], beans [13], melon [14], lettuce [15], sunflower [16], jujube, and radish [17]. Some flowers, trees, and Chinese medicinal plants, including hickory [18], white pine seedlings [19], cumin [20], fishtail palm [21], hybrid cymbidium, clover, rice flatsedge [22], white mangrove [23], mulberry [24], largehead atractylodes rhizome, and Chinese magnolia vine fruit [25] can also be infected with F. equiseti.…”

Section: Introductionmentioning

confidence: 99%

Determination and Structural Analysis of the Whole-Genome Sequence of Fusarium equiseti D25-1

Li¹,

Li²,

Yonghong³

et al. 2020

Preprint

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BackgroundFusarium equiseti is a plant pathogen with a wide range of hosts and diverse effects, including probiotic activity. However, the underlying molecular mechanisms remain unclear, hindering its effective control and utilization. In this study, the Illumina HiSeq 4000 and PacBio platforms were used to sequence and assemble the whole genome of Fusarium equiseti D25-1.ResultsThe assembly included 16 fragments with a GC content of 48.01%, gap number of zero, and size of 40,776,005 bp. There were 40,110 exons and 26,281 introns having a total size of 19,787,286 bp and 2,290,434 bp, respectively. The genome had an average copy number of 333, 71, 69, 31, and 108 for tRNAs, rRNAs, sRNAs, snRNAs, and miRNAs, respectively. The total repetitive sequence length was 1,713,918 bp, accounting for 4.2033% of the genome. In total, 13,134 functional genes were annotated, accounting for 94.97% of the total gene number. Toxin-related genes, including two related to zearalenone and 23 related to trichothecene, were identified. A comparative genomic analysis supported the high quality of the F. equiseti assembly, exhibiting good collinearity with the reference strains, 3,483 species-specific genes, and 1,805 core genes. A gene family analysis revealed more than 2,500 single-copy orthologs. F. equiseti was most closely related to Fusarium pseudograminearum based on a phylogenetic analysis at the whole-genome level.ConclusionsOur comprehensive analysis of the whole genome of F. equiseti provides basic data for studies of gene expression, regulatory and functional mechanisms, evolutionary processes, as well as disease prevention and control.

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Identity and pathogenicity of Fusarium species associated with crown rot on wheat (Triticum spp.) in Turkey

Cited by 60 publications

References 44 publications

Diversity of theFusariumpathogens associated with crown rot in the Huanghuai wheat‐growing region of China

Diversity of theFusariumpathogens associated with crown rot in the Huanghuai wheat‐growing region of China

Fusarium crown rot caused by Fusarium pseudograminearum in cereal crops: recent progress and future prospects

Determination and Structural Analysis of the Whole-Genome Sequence of Fusarium equiseti D25-1

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