Aggressiveness of Certain Fusarium graminearum Isolates on Wheat Seedlings and Relation with their Trichothecene Production

Asran, M. R.; Amal, M.I. Eraky

doi:10.3923/ppj.2011.36.41

Cited by 11 publications

(9 citation statements)

References 8 publications

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“…It was also observed that the percentages of damping-off in all tested fungi were higher than those of root rot. These results are in harmony with those reported by Asran andEraky (2011), Atef (2008) and Hashem and Hamada (2002 Hashem and Hamada, 2002;Nourozian et al, 2006;Soleimani et al, 2005). According to Harman (2001) natural factors limiting the number of soil borne pathogens occur through a combination of antagonism by other soil fungi and bacteria, natural release of antibiotics from other bacteria and fungi, and by competitive exclusion of habitat in the root zone or rhizosphere.…”

Section: Pathogenicity Testssupporting

confidence: 91%

“…Several fungi were recorded as causal pathogens of root-rot diseases such as Fusarium graminearum, F. equiseti, F. solani, Drechslera halodes and Rhizoctonia solani (Asran and Eraky, 2011;Atef, 2008;Hashem and Hamada, 2002). These diseases remain prevalent because of the trends toward a higher frequency of cereals in the rotation, including, commonly, continuous cereals, and the use of less or no tillage.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Bio-Control Agents on Yield, Yield Components and Root Rot Control in two Wheat Cultivars at New Valley Region

Moubark

Abdel-Monaim

2011

Not Sci Biol

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This study evaluated the effectiveness of applying the bioagents Bacillus subtilis (isolate BSM1), B. megaterium (isolate BMM5), Trichoderma viride (isolate TVM2) and T. harzianum (isolate THM4) for the control of rot root disease caused by Fusarium graminearum, Drechslera halodes and Rhizoctonia solani on two wheat cultivars ('Sakha 93' and 'Bani Suif 5') under greenhouse conditions. Moreover, their effect wheat growth and yield were also studied under field conditions. In vitro, all tested bioagents were significantly in the reduced redial growth of the pathogenic fungi. Trichoderma viride was active more than the other tested bioagents followed by T. harzianum, while B. subtilis was the least ones. Under greenhouse conditions, all tested bioagents were able to reduce significantly damping-off and root rot caused by the tested pathogens compared with control and increased fresh and dry weight of the survival plants when applied as soil or grain treatments however, there was variation among bioagent isolates effect on reduction of disease severity both application methods. Trichoderma viride and B. megaterium were recorded the highest effective in this respect compared with other tested bioagents. Under field conditions, analysis of variance and mean performance were estimated for four characters: grain yield 4.8 m S), methods (M), (S) (M), treatments (T), (S) (T), (M) (T) and (S) (M) (T)for 'Sakha 93' cultivar and 'Bani Suif 5' cultivars except application methods and (S) (M) for number of kernels spike -1 and 1000-kernel weight, respectively. While the treatments T. harzianum and B. megaterium were best treatments to increase grain yield, the treatments B. subtilis and T. harzianum were best treatments to increase number of spikes and the treatments B. subtilis and B. megaterium were best treatments to increase number of kernels for soil and grain application methods, respectively.

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Section: Pathogenicity Testssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Effect of Bio-Control Agents on Yield, Yield Components and Root Rot Control in two Wheat Cultivars at New Valley Region

Moubark

Abdel-Monaim

2011

Not Sci Biol

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“…and R. solani were obtained from diseased wheat plants and they were pathogenic to Giza 168 cv causing damping-off. These results are in accordance with those reported by (Hashem and Hamada, Amal, 2002;Abdelzaher, 2004;Atef, 2008;Ahmed et al, 2009;Asran andEraky, Amal, 2011 andMoubarak andAbdel-Monaim, 2011).…”

Section: Discussionsupporting

confidence: 93%

“…Among seedling diseases of wheat, damping-off and/or root rot caused by several soil-borne fungi F. solani, F.oxysporium, F. graminearum, Pythiumsp. and R. solani that attack at seedling stages of crop and directly reduce plant population as well as yield of wheat (Hashem and Hamada, 2002;Abdelzaher, 2004;Atef, 2008;Ahmed et al, 2009;Asran andEraky, 2011 andMoubarak andAbdel-Monaim 2011). Control of damping-off mainly depends on fungicide treatment.…”

Section: Introductionmentioning

confidence: 99%

EFFECT OF SOME COMMERCIAL BIO-AGENTS ON YIELD AND DAMPING-OFF DISEASE OF WHEAT LINES (Triticum aestivum vulgair L.)

Said¹,

Moharam²

2015

Journal of Plant Production

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The current study was conducted to assess the possibility of using two bioagents (BAs), Trichoderma harzianum T39 (Trichodex) and Bacillus subtilis (MBI 600) tested at 1, 3 and 5% concentration to control damping-off disease and also their ability to promote yield of wheat lines under field conditions. Seed inoculation with two BAs protected wheat seedlings and highly promoted seed germination. Also, inoculation with BAs significantly affected number of spikes/plant, biological yield/plant and grain yield/plant and there were statistically significant differences between bread wheat lines under field conditions. Moreover, the treatments at 5% of T. harzianum and B. subtilis were the best treatments to increase grain yield. Four lines, L11, L12, L27 and L38 were found to be more responsive to BAs treatments under field conditions.

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“…Fusarium graminearum (sexual state Gibberella zeae) is a fungal pathogen capable of causing head blight and seedling blight in wheat (Triticum aestivum) and other cereals (Cook 1968;Dal Bello et al, 2002;O'Donnell et al, 2004;Asran and Eraky Amal, 2011). The infection starts when F. graminearum spores (asexual conidia or sexually derived ascospores) land on the surface of host plant tissues, such as florets or seedlings.…”

Section: Introductionmentioning

confidence: 99%

In Planta Stage-Specific Fungal Gene Profiling Elucidates the Molecular Strategies of Fusarium graminearum Growing inside Wheat Coleoptiles

et al. 2012

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The ascomycete Fusarium graminearum is a destructive fungal pathogen of wheat (Triticum aestivum). To better understand how this pathogen proliferates within the host plant, we tracked pathogen growth inside wheat coleoptiles and then examined pathogen gene expression inside wheat coleoptiles at 16, 40, and 64 h after inoculation (HAI) using laser capture microdissection and microarray analysis. We identified 344 genes that were preferentially expressed during invasive growth in planta. Gene expression profiles for 134 putative plant cell wall-degrading enzyme genes suggest that there was limited cell wall degradation at 16 HAI and extensive degradation at 64 HAI. Expression profiles for genes encoding reactive oxygen species (ROS)-related enzymes suggest that F. graminearum primarily scavenges extracellular ROS before a later burst of extracellular ROS is produced by F. graminearum enzymes. Expression patterns of genes involved in primary metabolic pathways suggest that F. graminearum relies on the glyoxylate cycle at an early stage of plant infection. A secondary metabolite biosynthesis gene cluster was specifically induced at 64 HAI and was required for virulence. Our results indicate that F. graminearum initiates infection of coleoptiles using covert penetration strategies and switches to overt cellular destruction of tissues at an advanced stage of infection.

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Aggressiveness of Certain Fusarium graminearum Isolates on Wheat Seedlings and Relation with their Trichothecene Production

Cited by 11 publications

References 8 publications

Effect of Bio-Control Agents on Yield, Yield Components and Root Rot Control in two Wheat Cultivars at New Valley Region

Effect of Bio-Control Agents on Yield, Yield Components and Root Rot Control in two Wheat Cultivars at New Valley Region

EFFECT OF SOME COMMERCIAL BIO-AGENTS ON YIELD AND DAMPING-OFF DISEASE OF WHEAT LINES (Triticum aestivum vulgair L.)

In Planta Stage-Specific Fungal Gene Profiling Elucidates the Molecular Strategies of Fusarium graminearum Growing inside Wheat Coleoptiles

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