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Phoma macdonaldii

Different genetic architectures underlie crop responses to the same pathogen: the {Helianthus annuus * Phoma macdonaldii} interaction case for black stem disease and premature ripening

Different genetic architectures underlie crop responses to the same pathogen: the {Helianthus annuus * Phoma macdonaldii} interaction case for black stem disease and premature ripening

... by Phoma macdonaldii Boerema (teleo- morph: Leptosphaeria lindquistii) became the most severe and widespread sunflower disease in France, and could be partly responsible for the yield stagnation around ...

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Phenotypic variability of Leptosphaeria lindquistii (anamorph: Phoma macdonaldii), a fungal pathogen of sunflower

Phenotypic variability of Leptosphaeria lindquistii (anamorph: Phoma macdonaldii), a fungal pathogen of sunflower

... phora teres, was adapted for P. macdonaldii. A sun- flower stem fragment, sterilized at 110 8C for 25 min, was placed on a culture of a monospore isolate on PDA. Pycnidia were visible on the stem fragment after ...

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Quantitative trait loci associated with isolate specific and isolate nonspecific partial resistance to Phoma macdonaldii in sunflower

Quantitative trait loci associated with isolate specific and isolate nonspecific partial resistance to Phoma macdonaldii in sunflower

... by Phoma macdonaldii, is one of the most important diseases of sunflower in the ...P. macdonaldii (MP8 and MP10) were investigated using 99 recombinant inbred lines (RILs) from the cross between ...

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Analyse et modélisation des effets de la conduite de culture sur deux maladies cryptogamiques majeures du tournesol : Phoma macdonaldii et Phomopsis helianthi

Analyse et modélisation des effets de la conduite de culture sur deux maladies cryptogamiques majeures du tournesol : Phoma macdonaldii et Phomopsis helianthi

... plentiful. Phoma ascospores polluting petiole trough and groove encounter favourable conditions for germination and penetration in the plant even when contaminating rain was followed by dry ...Indeed, Phoma ...

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Inheritance of partial resistance to black stem (Phoma macdonaldii) in sunflower

Inheritance of partial resistance to black stem (Phoma macdonaldii) in sunflower

... mean of the parent values was significant for partial resistance to Phoma macdonaldii in three of the six F 1 hybrids. Two further experiments with eight lines (resistant and susceptible) at the fifth ...

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Déterminisme de la tolérance du tournesol à Phoma macdonaldii au collet et sur racines : approches génétiques et histologiques

Déterminisme de la tolérance du tournesol à Phoma macdonaldii au collet et sur racines : approches génétiques et histologiques

... au phoma a été décrite aussi bien en champs qu’en conditions contrôlées (Pérès et ...de Phoma macdonaldii et 7 QTLs (Quantitative Trait Loci) furent identifiés (Rachid Al-Chaarani, et ...

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Genetic control of partial resistance to ‘collar’ and ‘root’ isolates of Phoma macdonaldii in sunflower

Genetic control of partial resistance to ‘collar’ and ‘root’ isolates of Phoma macdonaldii in sunflower

... Abstract Phoma macdonaldii is one of the most important pathogens of sunflower (Heliantus annuus) in ...‘root’ Phoma isolates were crossed in a diallel ...‘root’ Phoma isolates and showed ...

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Characterisation of sunflower root colonisation by Phoma macdonaldii

Characterisation of sunflower root colonisation by Phoma macdonaldii

... P. macdonaldii have been described, but no fully resistant genotypes are ...P. macdonaldii and four sunflower genotypes suggested the presence of tissue-specific resistance genes (Abou Al Fadil 2006 ) ...

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A QTL analysis of sunflower partial resistance to downy mildew (Plasmopara halstedii) and black stem (Phoma macdonaldii) by the use of recombinant inbred lines (RILs)

A QTL analysis of sunflower partial resistance to downy mildew (Plasmopara halstedii) and black stem (Phoma macdonaldii) by the use of recombinant inbred lines (RILs)

... Abstract Partial resistance to downy mildew (Plasmo- para halstedii) and to black stem (Phoma macdonaldii) in sunflower were investigated under natural field infec- tion and a controlled growth chamber ...

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A cDNA microarray approach to decipher sunflower (Helianthus annuus) responses to the necrotrophic fungus Phoma macdonaldii

A cDNA microarray approach to decipher sunflower (Helianthus annuus) responses to the necrotrophic fungus Phoma macdonaldii

... Treatment effect After the exclusion of four ESTs showing significant interac- tion effects, only seven cDNA clones were identified as showing treatment-specific expression patterns across all experiments (Fig. 2b). Five ...

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Nitrogen and water management can limit premature ripening of sunflower induced by Phoma macdonaldii

Nitrogen and water management can limit premature ripening of sunflower induced by Phoma macdonaldii

... on two cultivars with artificial inoculation (AI) and natural infection (NI). Disease assessment was recorded weekly to calculate the area under disease progress curve (AUDPC) and the final percentage of PR plants. Data ...

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Low plant density can reduce sunflower premature ripening caused by Phoma macdonaldii

Low plant density can reduce sunflower premature ripening caused by Phoma macdonaldii

... 5. Conclusion This study was intended to identify the effect of sunflower crop management on PR induced by P. macdonaldii. The effect of nitro- gen and water supply on PR, previously observed, was confirmed. The ...

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Etiologie du syndrome de dessèchement précoce du tournesol : implication de Phoma macdonaldii et interaction avec la conduite de culture

Etiologie du syndrome de dessèchement précoce du tournesol : implication de Phoma macdonaldii et interaction avec la conduite de culture

... Moyenne d’AUDPCPR et proportion finale de pieds secs pour chaque densité de peuplement depuis la contamination artificielle jusqu’à 81DPI en 2008 et 77 DPI en 2009 -111-... Liste des fig[r] ...

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Phoma du tournesol : déterminisme de la tolérance de l'hôte à la maladie

Phoma du tournesol : déterminisme de la tolérance de l'hôte à la maladie

... Chez Phoma lingam (Abadie et Boudart, 1982), Aschochyta rabiei (Hohl et ...chez Phoma macdonaldii, ce mucilage ne présente aucune activité enzymatique (Roustaee et ...

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QTL mapping of partial resistance to Phoma basal stem and root necrosis in sunflower (Helianthus annuus L.)

QTL mapping of partial resistance to Phoma basal stem and root necrosis in sunflower (Helianthus annuus L.)

... Abstract Phoma macdonaldii infects different tissues of sunflower and causes reduction in yield and oil ...four Phoma macdonaldii basal stem and root necrosis isolates using our improved map ...

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Use of GGEbiplot methodology and Griffing's diallel method for genetic analysis of partial resistance to phoma black stem disease in sunflower

Use of GGEbiplot methodology and Griffing's diallel method for genetic analysis of partial resistance to phoma black stem disease in sunflower

... resistance, phoma black stem, specific combining ability (SCA). Introduction Phoma black stem caused by Phoma macdonaldii is one of the most important diseases of sunflower in France (Debaeke ...

7

Identifying epidemiological predictors for quantitative host plant resistance : application to the sunflower-phoma pathosystem

Identifying epidemiological predictors for quantitative host plant resistance : application to the sunflower-phoma pathosystem

... 1997). Phoma black stem epidemic onset typically occurs at flowering, with lesions on the stem progressing from bottom to upper stem nodes (Schwanck et ...in phoma black stem ...

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Modelling the effects of cropping systems and their spatial distribution on phoma stem canker on Winter OilSeed Rape and the adaptation of fungal pathogen populations responsible for the disease (Leptosphaeria maculans) to cultivar resistances.

Modelling the effects of cropping systems and their spatial distribution on phoma stem canker on Winter OilSeed Rape and the adaptation of fungal pathogen populations responsible for the disease (Leptosphaeria maculans) to cultivar resistances.

... 2.1. Résumé / Abstract Résumé. À cause des impacts environnementaux de l’agriculture intensive, il est indispensable de concevoir des systèmes de culture innovants permettant le contrôle des bioagresseurs, mais moins ...

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Etude des mécanismes de résistance de la plante modèle Medicago truncatula vis-à-vis de deux agents pathogènes majeurs des légumineuses cultivées : Phoma medicaginis et Aphanomyces euteiches

Etude des mécanismes de résistance de la plante modèle Medicago truncatula vis-à-vis de deux agents pathogènes majeurs des légumineuses cultivées : Phoma medicaginis et Aphanomyces euteiches

... la tige noire de la luzerne et Aphanomyces euteiches (Ae), agent de pourriture racinaire du pois, d’autre part. Après avoir récolté et identifié plusieurs isolats fongiques répartis su[r] ...

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Avaliação do ataque da mancha de Phoma em variedades de café arábica.

Avaliação do ataque da mancha de Phoma em variedades de café arábica.

... AVALIAÇÃO DO ATAQUE DA MANCHA DE PHOMA EM VARIEDADES DE CAFÉ ARÁBICA C.A. Krohling, Engº Agrº Incaper; J.B. Matiello e S.R. Almeida, Eng o Agr os Mapa-Fundação Procafe, e V.R. Rodrigues, Engº Agrº Consultor ...

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