Occurrence of Fusarium head blight and Fusarium crown rot in Algerian wheat: identification of associated species and assessment of aggressiveness

Abdallah-Nekache, Nora; Laraba, Imane; Ducos, Christine; Barreau, Christian; Bouznad, Zouaoui; Boureghda, Houda

doi:10.1007/s10658-019-01673-7

Cited by 39 publications

(17 citation statements)

References 56 publications

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“…In Europe, F. graminearum, F. culmorum and F. poae are the main species responsible for FHB (Senatore et al, 2021). In Algeria, following the results of morphological and molecular identifications of Fusarium isolated from wheat ears, F. culmorum and F. pseudograminearum represent the two most dominant species (Abdallah-Nekache et al, 2019;Hadjout et al, 2022).…”

Section: Macroconidia Septamentioning

confidence: 99%

Morphological and cultural characterization of two Fusarium isolates causing wheat fusarium head blight in Algeria

Hadjout¹,

ZOUIDI²

2022

Not Sci Biol

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In Algeria, fusarium head blight is a serious fungal disease of wheat caused by Fusarium genus. The study of the epidemiological cycle of the disease in the field is always hampered by a major problem which is the identification of the parasitic complex of Fusarium species. These species can only be identified after Petri dish culture and observation of a set of morphological criteria such as color, cultural aspect of colonies, growth rate of mycelium and the form of isolate macroconidia. To this end, the objective of this present study is to identify two Fusarium isolates based on a set of morphological and cultural criteria mentioned above. The results obtained for all the morphological characters studied show phenotypic variability between the two isolates. Based on these results, we were able to characterize these two isolates as F. graminearum and F. culmorum. Indeed, morphological and cultural characterization, although important, remains insufficient. It should therefore be further investigated by molecular characterization, in order to highlight any differences between the two isolates studied.

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Section: Macroconidia Septamentioning

confidence: 99%

Morphological and cultural characterization of two Fusarium isolates causing wheat fusarium head blight in Algeria

Hadjout¹,

ZOUIDI²

2022

Not Sci Biol

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“…Inoculation of wheat spikes was carried out when the plants were at the mid-flowering growth stage GS 65 (Figure 1) [22]; wheat spikes were inoculated with 1 × 10 6 conidia mL −1 of F. culmorum conidial suspension by spray using a CO 2 -pressurized knapsack sprayer, while control plants were sprayed with distilled water.…”

Section: Inoculum Production and Inoculationmentioning

confidence: 99%

Comparative Performances of Beneficial Microorganisms on the Induction of Durum Wheat Tolerance to Fusarium Head Blight

et al. 2021

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Durum wheat production is seriously threatened by Fusarium head blight (FHB) attacks in Tunisia, and the seed coating by bio-agents is a great alternative for chemical disease control. This study focuses on evaluating, under field conditions, the effect of seed coating with Trichoderma harzianum, Meyerozyma guilliermondii and their combination on (i) FHB severity, durum wheat grain yield and TKW in three crop seasons, and (ii) on physiological parameters and the carbon and nitrogen content and isotope composition in leaves and grains of durum wheat. The results indicated that the treatments were effective in reducing FHB severity by 30 to 70% and increasing grain yield with an increased rate ranging from 25 to 68%, compared to the inoculated control. The impact of treatments on grain yield improvement was associated with higher NDVI and chlorophyll content and lower canopy temperature. Furthermore, the treatments mitigated the FHB adverse effects on N and C metabolism by resulting in a higher δ13Cgrain (13C/12Cgrain) and δ15Ngrain (15N/14Ngrain). Overall, the combination outperformed the other seed treatments by producing the highest grain yield and TKW. The high potency of seed coating with the combination suggests that the two microorganisms have synergetic or complementary impacts on wheat.

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“…Fusarium pathogens is the most important seed borne fungi which have been correlated with wheat seedling blight and root rot. However, different species of Fusarium were found in both husks and grains by ratio 3:1, respectively [6,7]. Fusarium graminearum, F. avenaceum, F. culmorum, F. poae were associated with wheat kernels and other cereals grains, meanwhile, F. cerealis, F. equiseti, F. sporotrichoides, F. tricinctum were less frequent [8].…”

Section: Introductionmentioning

confidence: 98%

Triazole Fungicides Residues and Their Inhibitory Effect on Some Trichothecenes Mycotoxins Excretion in Wheat Grains

Thabit¹,

Abdelkareem²,

Bouqellah³

et al. 2021

Preprint

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Wheat is one of the global strategic crops and ranks third in terms of cereals production. Wheat crop is exposed to many fungal infections during the cultivation stages, some of which have the ability to secrete numbers of toxic secondary metabolites that threaten the quality of grains, consumer health, producer economics and global trade exchange. Fifty-four random samples were collected from wheat which originated from different countries. The samples included 14 of soft wheat to study the extent of their contamination with Deoxynivalenol (DON) and T-2 toxin by auto-ELISA technology and r-biopharm Microtiter plate. All samples were contaminated with DON toxin except one sample, and the contamination average ranged between 40.7 and 1018.8 µg kg-1. The highest contamination rates were in Lithuanian and the lowest in Indian wheat. Meanwhile the highest average level of T-2 toxin contamination was in Lithuanian wheat grains with a rate of 377.4µg kg-1 and the lowest in Polish wheat with an average of 115.3µg kg-1. GC-MS/MS and multiple reaction monitoring mode (MRM), was used to detect 15 triazole derivatives in collected samples, which may be used to combat fungal diseases on wheat during the growing season. Only 9 derivatives were found; Simeconazole, Penconazole, Hexaconazole, Cyproconazole, Diniconazole, Tebuconazole, Metconazole, Fenbuconazole and Difenoconazole. These derivatives varied according to the origin of wheat samples as well as their its concentration whereas, another 6 derivatives were not detected in all samples. A direct inverse relationship was found between the DON concentration in the samples and the residues of Simeconazole, Penconazole, Diniconazole, Tebuconazole, Metconazole, Fenbuconazole and Difenoconazole and the T-2 toxin showed the same relationship except for Tebuconazole. The safe and rational use of some triazole derivatives may be a new approach and a promising strategy not only to reduce plant diseases and their problems, but also to get rid of some mycotoxins as contaminates.

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Occurrence of Fusarium head blight and Fusarium crown rot in Algerian wheat: identification of associated species and assessment of aggressiveness

Cited by 39 publications

References 56 publications

Morphological and cultural characterization of two Fusarium isolates causing wheat fusarium head blight in Algeria

Morphological and cultural characterization of two Fusarium isolates causing wheat fusarium head blight in Algeria

Comparative Performances of Beneficial Microorganisms on the Induction of Durum Wheat Tolerance to Fusarium Head Blight

Triazole Fungicides Residues and Their Inhibitory Effect on Some Trichothecenes Mycotoxins Excretion in Wheat Grains

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