Infection of grain crops with fungi of the genus <i>Fusarium</i>

Zargaryan, N. Yu.; Kekalo, A. Yu.; Nemchenko, V. V.

doi:10.1051/bioconf/20213604008

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…, Puccinia striiformis and Fusarium graminearum ) ( Trail 2009 , Matny 2015 , Savary et al 2019 ). Fusarium pathogens are notorious, and not only cause yield losses, but also produce mycotoxins threatening human and animal health ( Desjardins 2006 , Leslie & Summerell 2006 , Renev et al 2021 ). For instance, the annual loss due to wheat scab in China was up to 3.41 million tons from 2000 to 2018 ( Su et al 2021 ), and from 1993 to 2001, Fusarium diseases on crops caused economic losses up to $7.7 billion in the United States ( Nganje et al 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Fusarium diversity associated with diseased cereals in China, with an updated phylogenomic assessment of the genus

Han

Wang

et al. 2023

Studies in Mycology

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Fusarium species are important cereal pathogens that cause severe production losses to major cereal crops such as maize, rice, and wheat. However, the causal agents of Fusarium diseases on cereals have not been well documented because of the difficulty in species identification and the debates surrounding generic and species concepts. In this study, we used a citizen science initiative to investigate diseased cereal crops (maize, rice, wheat) from 250 locations, covering the major cereal-growing regions in China. A total of 2 020 Fusarium strains were isolated from 315 diseased samples. Employing multi-locus phylogeny and morphological features, the above strains were identified to 43 species, including eight novel species that are described in this paper. A world checklist of cereal-associated Fusarium species is provided, with 39 and 52 new records updated for the world and China, respectively. Notably, 56 % of samples collected in this study were observed to have co-infections of more than one Fusarium species, and the detailed associations are discussed. Following Koch’s postulates, 18 species were first confirmed as pathogens of maize stalk rot in this study. Furthermore, a high-confidence species tree was constructed in this study based on 1 001 homologous loci of 228 assembled genomes (40 genomes were sequenced and provided in this study), which supported the “narrow” generic concept of Fusarium (= Gibberella). This study represents one of the most comprehensive surveys of cereal Fusarium diseases to date. It significantly improves our understanding of the global diversity and distribution of cereal-associated Fusarium species, as well as largely clarifies the phylogenetic relationships within the genus.

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Section: Introductionmentioning

confidence: 99%

Fusarium diversity associated with diseased cereals in China, with an updated phylogenomic assessment of the genus

Han

Wang

et al. 2023

Studies in Mycology

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“…are distributed worldwide and include a wide range of agronomically important and toxin-producing plant pathogens, which are causal agents of wilt, blight, tissues rot and cankers of many horticultural, ornamental and forest crops [5,6]. The infection occurs during seed germination and also affects the plant in later growth phases, causing severe diseases like root and stalk rot [7,8]. The disease can lead to premature senescence and lodging of the plants, with different levels of severity depending on the pathogenic species involved, the phenological stage of the plant and the environmental conditions that occur during the cropping cycle.…”

Section: Introductionmentioning

confidence: 99%

“…The disease can lead to premature senescence and lodging of the plants, with different levels of severity depending on the pathogenic species involved, the phenological stage of the plant and the environmental conditions that occur during the cropping cycle. Fusarium species are also able to produce a wide range of mycotoxins, which accumulate in the plant tissues during the infection process, posing an important risk to human and animal health [6,8,9]. In Europe, the main species involved with maize diseases are F. graminearum, F. culmorum and F. proliferatum [6].…”

Section: Introductionmentioning

confidence: 99%

Diversity and Pathogenicity of Fusarium Species Associated with Stalk and Crown Rot in Maize in Northern Italy

Sanna,

Martino,

Guarnaccia

et al. 2023

Plants

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The genus Fusarium includes several agronomically important and toxin-producing species that are distributed worldwide and can cause a wide range of diseases. Crown and stalk rot and grain infections are among the most severe symptoms that Fusarium spp. can cause in maize. Disease development usually occurs during germination, but it may also affect the later phases of plant growth. The purpose of this study was to investigate the diversity and pathogenicity of 41 isolates recovered from symptomatic seedlings collected in Northern Italy and seeds of five different geographical origins in 2019 and 2020. The pathogenicity was tested and confirmed in 23 isolates causing rotting in maize seedlings, with disease indexes from 20% to 90%. A multilocus phylogeny analysis based on four genomic loci (tef1-α, rpb2, calm and tub2) was performed on 23 representative isolates. Representative isolates were identified as species belonging to three species complexes (SC), including Fusarium verticillioides and F. annulatum in the F. fujikuroi SC. Fusarium commune was identified in the F. nisikadoi SC, and three different lineages were found in the Fusarium oxysporum SC. This study reports F. annulatum and two lineages of the Fusarium oxysporum SC as maize pathogens for the first time in Italy.

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“…Seed treatments should be selected not only for their efficacy in controlling diseases but also for the safety of protected crops, to avoid the risk of phytotoxicity, to limit seed germination and seedling emergence, and to be safe for the natural environment [11]. Application of seed treatment is important due to the fact that infection of seedlings may occur, among other factors, as a result of infection from the soil or with seed material [12]. Fungi of the Fusarium genus can also overwinter in the form of mycelium or chlamydospores in crop residues and then infect plants [13].…”

Section: Introductionmentioning

confidence: 99%

Impact of Various Essential Oils on the Development of Pathogens of the Fusarium Genus and on Health and Germination Parameters of Winter Wheat and Maize

Danielewicz,

Grzanka,

Sobiech

et al. 2024

Molecules

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Currently, researchers are looking for ways to replace synthetic pesticides with substances of natural origin. Essential oils are produced by plants, among other things, to protect against pathogens, which is why there is interest in their use as fungicides. This experiment assessed the composition of essential oils from a commercial source, their impact on the development of mycelium of pathogens of the Fusarium genus, and the possibility of using them as a pre-sowing treatment. Grains of winter wheat (Triticum aestivum L.) and corn (Zea mays L.) were inoculated with a suspension of mycelium and spores of fungi of the Fusarium genus and then soaked in solutions containing oils of sage (Salvia officinalis L.), cypress (Cupressus sempervirens L.), cumin (Cuminum cyminum L.), and thyme (Thymus vulgaris L.). The obtained results indicate that thyme essential oil had the strongest effect on limiting the development of Fusarium pathogens and seedling infection, but at the same time it had an adverse effect on the level of germination and seedling development of the tested plants. The remaining essential oils influenced the mentioned parameters to varying degrees. Selected essential oils can be an alternative to synthetic fungicides, but they must be selected appropriately.

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Infection of grain crops with fungi of the genus Fusarium

Cited by 4 publications

References 2 publications

Fusarium diversity associated with diseased cereals in China, with an updated phylogenomic assessment of the genus

Fusarium diversity associated with diseased cereals in China, with an updated phylogenomic assessment of the genus

Diversity and Pathogenicity of Fusarium Species Associated with Stalk and Crown Rot in Maize in Northern Italy

Impact of Various Essential Oils on the Development of Pathogens of the Fusarium Genus and on Health and Germination Parameters of Winter Wheat and Maize

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