First Report of <i>Fusarium hostae</i> Causing Crown Rot on Wheat (<i>Triticum</i> spp.) in Turkey

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

doi:10.1094/pdis-06-15-0628-pdn

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…In North Dakota, for example, cooler years produced higher F. culmorum isolation ratios than warmer years, while warmer years produced higher F. pseudograminearum isolation ratios [ 55 ]. Isolates of F. redolens , previously identified as a wheat pathogen in Canada [ 68 ], Turkey [ 69 ], and Kazakhstan [ 21 ], were found in 13.33% of the fields sampled (only in Bishkek). Curvularia inaequalis isolates, an anamorph of Cochliobolus , were discovered in two fields in the Sokuluk region and one field in Kara-Balta.…”

Section: Discussionmentioning

confidence: 99%

Fungal Pathogens Associated with Crown and Root Rot in Wheat-Growing Areas of Northern Kyrgyzstan

Özer

Erper

Yıldız

et al. 2023

JoF

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Fungal species associated with crown and root rot diseases in wheat have been extensively studied in many parts of the world. However, no reports on the relative importance and distribution of pathogens associated with wheat crown and root rot in Kyrgyzstan have been published. Hence, fungal species associated with wheat crown/root rot were surveyed in three main wheat production regions in northern Kyrgyzstan. Fungal species were isolated on 1/5 strength potato-dextrose agar amended with streptomycin (0.1 g/L) and chloramphenicol (0.05 g/L). A total of 598 fungal isolates from symptomatic tissues were identified using morphological features of the cultures and conidia, as well as sequence analysis of the nuclear ribosomal internal transcribed spacer (ITS) region, the translation elongation factor 1α (TEF1), and the RNA polymerase II beta subunit (RPB2) genes. The percentage of fields from which each fungus was isolated and their relative percentage isolation levels were determined. Bipolaris sorokiniana, the causal agent of common root rot, was the most prevalent pathogenic species isolated, being isolated from 86.67% of the fields surveyed at a frequency of isolation of 40.64%. Fusarium spp. accounted for 53.01% of all isolates and consisted of 12 different species. The most common Fusarium species identified was Fusarium acuminatum, which was isolated from 70% of the sites surveyed with an isolation frequency of 21.57%, followed by Fusarium culmorum, Fusarium nygamai, Fusarium oxysporum, and Fusarium equiseti, all of which had a field incidence of more than 23%. Inoculation tests with 44 isolates representing 17 species on the susceptible Triticum aestivum cv. Seri 82 revealed that Fusarium pseudograminearum and F. culmorum isolates were equally the most virulent pathogens. The widespread distribution of moderately virulent B. sorokiniana appears to be a serious threat to wheat culture, limiting yield and quality. With the exception of F. culmorum, the remaining Fusarium species did not pose a significant threat to wheat production in the surveyed areas because common species, such as F. acuminatum, F. nygamai, F. oxysporum, and F. equiseti, were non-pathogenic but infrequent species, such as Fusarium redolens, Fusarium algeriense, and F. pseudograminearum, were highly or moderately virulent. Curvularia inaequalis, which was found in three different fields, was mildly virulent. The remaining Fusarium species, Fusarium solani, Fusarium proliferatum, Fusarium burgessii, and Fusarium tricinctum, as well as Microdochium bolleyi, Microdochium nivale, and Macrophomina phaseolina, were non-pathogenic and considered to be secondary colonizers. The implications of these findings are discussed.

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Section: Discussionmentioning

confidence: 99%

Fungal Pathogens Associated with Crown and Root Rot in Wheat-Growing Areas of Northern Kyrgyzstan

Özer

Erper

Yıldız

et al. 2023

JoF

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“…Although Fusarium hostae were commonly associated with B. napus plant, it cannot cause serious B. napus disease, like fusarium wilt caused by Fusarium oxysporum (Geiser et al 2001;Younesi et al 2021). Fusarium hostae was reported to causes Fusarium root and crown rots in wheat (Gebremariam et al 2016). Gibberella is the teleomorph of Fusarium detected among core ASVs of B. napus, and G. baccata can cause cankers and blights on a wide range of plants (Desjardins 2003).…”

Section: Fungal Core Microbiomementioning

confidence: 99%

From plant genetics to environment of selection: exploring the drivers of fungal communities in the roots and rhizosphere of Brassica napus

Bazghaleh¹,

Li²,

Vail³

et al. 2022

Preprint

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PurposeOur aim was to characterize the fungal root and rhizosphere microbiomes of genetically diverse Brassica napus lines in a temporally-intensive, multi-site field study to assess the relative contributions of plant genetics, growth stage and environmental conditions to microbiome composition and to identify fungi that were associated with yield performance. MethodsSixteen B. napus lines were grown across three sites in the Canadian Prairies. Sixteen lines were sampled weekly for ten weeks at one site in 2016, as well as a subset of eight lines at the same site in 2017; the sixteen lines were sampled three times at three sites in 2017. The root and rhizosphere fungal microbiomes were assessed using amplicon sequencing of the fungal ITS region with the Illumina MiSeq. ResultsOverall, B. napus line was associated with only 2% of the variation in community structure. Constrained to within a single site-year, this association increased to between 4 and 16% and to between 25 and 37% in a single week within individual sites. The fungal core microbiome consisted of 38 ASVs; Olpidium, Fusicola, Fusarium, Gibberella, Mortierella, and Cutaneotrichosporon were the most abundant taxa with varied abundance during different B. napus growth stages. Thirteen ASVs across three growth stages were highly associated with B. napus yield. ConclusionOur results point to the potential to exploit the B. napus microbiome for improving plant performance by targeting the core taxa identified here as well as those that lead to greater fitness under more specific conditions.

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

et al. 2017

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First Report of Fusarium hostae Causing Crown Rot on Wheat (Triticum spp.) in Turkey

Cited by 6 publications

References 5 publications

Fungal Pathogens Associated with Crown and Root Rot in Wheat-Growing Areas of Northern Kyrgyzstan

Fungal Pathogens Associated with Crown and Root Rot in Wheat-Growing Areas of Northern Kyrgyzstan

From plant genetics to environment of selection: exploring the drivers of fungal communities in the roots and rhizosphere of Brassica napus

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

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