Wheat root rot in West Central Morocco and effects of Fusarium culmorum and Helminthosporium sativum seed and soil-borne inoculum on root rot development, plant emergence and crop yield

Lyamani, Abderrahmane

doi:10.31274/rtd-180813-8870

Cited by 3 publications

(3 citation statements)

References 47 publications

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“…La répartition géographique des différentes espèces du Fusarium ainsi notée en Tunisie, a été de même observée par différents auteurs dans diverses zones céréalières du monde, mais leurs distributions restent tributaires du microclimat local. En effet, au Maroc, Fusarium culmorum était présent dans presque 25% des champs (Lyamani, 1988). Cook (1967) a rapporté que F. culmorum exige plus d’humidité que F. graminearum .…”

Section: Discussionunclassified

Identification et répartition géographique des fusarioses affectant l’épi et le pied du blé dans certaines régions du Nord de la Tunisie

Boughalleb¹,

Souli²,

Karbous

et al. 2006

EPPO Bulletin

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Des prospections ont été réalisées durant les mois d’Avril et de Mai dans certaines parcelles de blé situées au Nord de la Tunisie dans l’objectif d’identifier les espèces de Fusarium associées à la pourriture du collet et à l’échaudage des épis de blé. Les résultats ont montré que Fusarium culmorum, Fusarium graminearum et Microdochium nivale (Fusarium nivale) sont les plus fréquemment isolées. Leur gravité varie selon les régions. En effet, les champs localisés dans les gouvernorats de Béja, Jendouba et Bizerte ont montré l’existence principalement de six espèces de Fusarium: Fusarium culmorum, Fusarium graminearum, Fusarium avenaceum, Fusarium solani, Microdochium nivale (Fusarium nivale) et Fusarium equiseti.

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Section: Discussionunclassified

Identification et répartition géographique des fusarioses affectant l’épi et le pied du blé dans certaines régions du Nord de la Tunisie

Boughalleb¹,

Souli²,

Karbous

et al. 2006

EPPO Bulletin

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“…Infection can also occur during grain storage or afterward (Hashem et al, 2010). In Morocco, several Fusarium species are associated with symptoms of root rot in cereals; the most common are F. equiseti, F. culmorum, F. oxysporum, and F. solani (Lyamani 1988).…”

Section: P O S T P R I N Tmentioning

confidence: 99%

Fusarium equiseti as one of the main Fusarium species causing wilt and root rot of chickpeas in Morocco

Hazzat

Adnani

Msairi³

et al. 2023

Acta Myc

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Fungal isolates of Fusarium were collected from symptomatic chickpea (Cicer arietinum L.) plants growing in fields within Souk Tlat commune in the Gharb region. Morphological and molecular characterizations were performed of the fungal isolate N3 obtained from a chickpea plant. PCR amplification and sequencing of the internal transcribed spacer using the primers ITS1 and ITS4 was applied to identify the fungal isolate N3. The maximum similarity index of the fungus was found to be 99.33% with Fusarium equiseti (accession no. MT111122). In the pathogenicity test, both chickpea seed dip inoculation and soil infestation by the spore suspension of Fusarium isolate were adopted. Four weeks after chickpea seed inoculation, few plants emerged and those that emerged were stunted. A high percentage of inoculated seeds did not emerge and showed accentuated rot symptoms. Eight weeks after sowing seeds in infested soil, the obtained chickpea seedlings displayed root necrosis, browning at the crown, and wilting. In addition, these plants showed a foliar alteration index of 0.395. The re-isolation was positive for different parts of chickpea plants for both seed and soil inoculation. Fusarium equiseti isolate decreased the length of the root and aerial parts, and number of leaves and branches of the inoculated chickpea plants either by seed inoculation or soil infestation with values of 0.91 cm and 19.73 cm, 1.29 cm and 19.44 cm, 1.11 and 18.66, and 0.0 and 2.08 respectively, whereas the corresponding values for the control plants were 27.16 and 28.33 cm, 29.05 and 31.05 cm, 24.21 and 25.66, and 3.50 and 3.11, respectively. To the best of our knowledge, this is the first report of F. equiseti on chickpea (Cicer arietinum L.) in Morocco.

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“…Durum wheat ( Triticum durum Desf) damage commonly exceeds 50% reduction in grain yield ( Jones and Clifford 1978 ; Smiley et al, 2005 ). Many studies have shown that durum wheat is in fact the most sensitive crop to FRR in Morocco ( Lyamani, 1988 ; Mergoum, 1991 ; Nsarellah et al, 2000 ). Therefore, the main objective of this study was to find novel sources of resistance to Fusarium culmorum in durum wheat.…”

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Evaluation of Durum Wheat Genotypes for Resistance against Root Rot Disease Caused by Moroccan Fusarium culmorum Isolates

et al. 2022

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Fusarium culmorum is one of the most important causal agents of root rot of wheat. In this study, 10 F. culmorum isolates were collected from farms located in five agro-ecological regions of Morocco. These were used to challenge 20 durum wheat genotypes via artificial inoculation of plant roots under controlled conditions. The isolate virulence was determined by three traits (roots browning index, stem browning index, and severity of root rot). An alpha-lattice design with three replicates was used, and the resulting ANOVA revealed a significant (P < 0.01) effect of isolate (I), genotype (G), and G × I interaction. A total of four response types were observed (R, MR, MS, and S) revealing that different genes in both the pathogen and the host were activated in 53% of interactions. Most genotypes were susceptible to eight or more isolates, while the Moroccan cultivar Marouan was reported resistant to three isolates and moderately resistant to three others. Similarly, the Australian breeding line SSD1479-117 was reported resistant to two isolates and moderately resistant to four others. The ICARDA elites Icaverve, Berghisyr, Berghisyr2, Amina, and Icaverve2 were identified as moderately resistant. Principal component analysis based on the genotypes responses defined two major clusters and two sub-clusters for the 10 F. culmorum isolates. Isolate Fc9 collected in Khemis Zemamra was the most virulent while isolate Fc3 collected in Haj-Kaddour was the least virulent. This work provides initial results for the discovery of differential reactions between the durum lines and isolates and the identification of novel sources of resistance.

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Wheat root rot in West Central Morocco and effects of Fusarium culmorum and Helminthosporium sativum seed and soil-borne inoculum on root rot development, plant emergence and crop yield

Abstract: Wheat root rot in West Central Morocco and effects of Fusarium culmorum and Helminthosporium sativum seed and soil-borne inoculum on root rot development, plant emergence and crop yield " (1988). Retrospective Theses and Dissertations. 8866.

Cited by 3 publications

References 47 publications

Identification et répartition géographique des fusarioses affectant l’épi et le pied du blé dans certaines régions du Nord de la Tunisie

Identification et répartition géographique des fusarioses affectant l’épi et le pied du blé dans certaines régions du Nord de la Tunisie

<i>Fusarium equiseti</i> as one of the main <i>Fusarium</i><i></i> species causing wilt and root rot of chickpeas in Morocco

Evaluation of Durum Wheat Genotypes for Resistance against Root Rot Disease Caused by Moroccan Fusarium culmorum Isolates

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