Phytotoxicity of pathogenic fungi and their mycotoxins to cereal seedling viability

Hasan, H. A. H.

doi:10.1556/amicr.48.2001.1.4

Cited by 24 publications

(28 citation statements)

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“…Higher fungal infestation probably co-influenced the seedling vigour together with another agroenvironmental factors. In general, species from the Alternaria, Penicillium, Aspergillus and Fusarium genera and Cochliobolus sativus isolated from BPK are capable of killing or reducing the growth of cereal seedlings, and have the ability to produce their respective toxins (Hassan 1999). Seed-borne fungi may injure the embryo by producing some toxins which result in germination failure or may reduce seedling vigour in case of germination (Hassan 1999).…”

Section: Discussionmentioning

confidence: 99%

“…In general, species from the Alternaria, Penicillium, Aspergillus and Fusarium genera and Cochliobolus sativus isolated from BPK are capable of killing or reducing the growth of cereal seedlings, and have the ability to produce their respective toxins (Hassan 1999). Seed-borne fungi may injure the embryo by producing some toxins which result in germination failure or may reduce seedling vigour in case of germination (Hassan 1999). Alternaria alternata is a commonly occurring species of particular interest because it produces a number of mycotoxins, including alternariol (AOH), alternariol monomethyl ether (AME), altenuene (ALT), altertoxins I, II, and III (ATX-I, -II, and -III) and l-tenuazonic acid (TeA) (Li et al 2001;Scott 2001).…”

Section: Discussionmentioning

confidence: 99%

“…In case of black point, the location-cultivar-year interaction is a significant source of variation and a crossover cultivar-environment interaction was significant, suggesting that rank order of cultivars differed with the environment (Fernandez et al 2000). Several seed-borne fungi, including species of the genera Alternaria, Fusarium, Aspergillus and Penicillium have been considered as important pathogens of cereal grains (Hassan 1999;Doohan et al 2003). Species of Alternaria, Fusarium, Cochliobolus, Aspergillus, Cladosporium, Penicillium, Rhizopus and Stemphylium are associated with black point symptoms (Wiese 1987).…”

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Correlation between black point symptoms and fungal infestation and seedling viability of wheat kernels

Hudec¹,

Muchová²

2008

Plant Prot. Sci.

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Hudec K., Muchová D. (2008): Correlation between black point symptoms and fungal infestation and seedling viability of wheat kernels. Plant Protect. Sci., 44: 138-146.The level of occurrence of black point, the spectrum of fungal species and damage to wheat seedling vigour associated with it were assessed during 2003 and 2004 in the Slovak Republic. The incidence of black point kernels ranged between 0.2-2.4% in 2003 and 24.2-34.3% in 2004. The kernels' fungal contamination varied from 60% to 100%. Alternaria spp., F. poae and F. culmorum were isolated from all localities and all subsamples. Stemphylium vesicarium, Fusarium culmorum, F. graminearum, F. avenaceum, F. sporotrichioides, Microdochium nivale, Epicoccum nigrum, Penicillium spp., Aspergillus niger, Rhizopus nigricans and Cochliobolus sativus were isolated less frequently. Fungi of the genus Alternaria were the most dominant, followed by Fusarium and Microdochium among which F. poae was dominant. Irrespective of incubation temperature, the germinative capacity and coleoptile growth rate of discolored kernels were affected more in the wet and cold year 2004. The inhibition of germination and seedling viability was more pronounced at the incubation temperature 22°C than at 15°C. Inhibition of coleoptile growth rate was 0.12-3.12% in black point kernels collected in 2003, and 0.24-9.28% in those collected in 2004.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Correlation between black point symptoms and fungal infestation and seedling viability of wheat kernels

Hudec¹,

Muchová²

2008

Plant Prot. Sci.

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“…According to our results, the germination activity in the majority of cultivars was affected more in 2005, which was a year of higher occurrence of saprophytic and phytopathogenic fungi. In general, fungi of the genera Alternaria, Penicillium, Aspergillus and Fusarium and cochliobolus sativus are capable of killing or reducing a seedling's vigour and have the ability to produce their respective toxins (Hassan 1999). Alternaria alternata as a facultative parasite is a frequently occurring species of particular interest because it produces a number of mycotoxins, including alternariol (AOH), alternariol monomethyl ether (AME), altenuene (ALT), altertoxins I, II and III (ATX-I, -II, and -III) and l-tenuazonic acid (TeA) (Li et al 2001;Scott 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Several seed-borne fungi, including species of the genera Fusarium, Alternaria, Aspergillus and Penicillium have been considered as important pathogens of cereal grains (Hassan 1999;Doohan et al 2003). The infection can reduce grain yield, seed vigour and germination (Šarić et al 1997).…”

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confidence: 99%

Fungal infection of malt barley kernels in Slovak Republic

Roháčik¹,

Hudec²

2007

Plant Prot. Sci.

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Roháčik T., Hudec K. (2007): Fungal infection of malt barley kernels in Slovak Republic. Plant Protect. Sci., 43: 86-93.The influence of agro-environmental factors (year, cultivar and climatic factors) on the occurrence of fungi on kernels of malt barley, species spectrum and seedling viability were evaluated during 2004 and 2005. The seeds (asymptomatic, fraction above 2.5 mm) originated from different cultivars and locations of the Slovak Republic. Surface sterilisation of the kernels before isolation of the fungi was the key factor for objective results on the occurrence of Fusarium species. Screening of non-sterilised kernels gave a different spectrum of fungal species and their frequency and may lead to distorted results. The most frequent species isolated from barley kernels were Alternaria spp., cochliobolus sativus, epicoccum nigrum, Fusarium spp. and Pyrenophora teres. The results confirmed that agro-environmental factors (mostly year and microclimatic conditions) had a major influence on infection by and population structure of fungi in malt barley kernels. The total sample infection by Fusarium spp. was significantly higher at localities with higher altitude and in 2005. The infection level varied from 0% to 20%, in some localities in 2005 it exceeded 20%. The widest fungal species spectrum was recorded in the locations with high level of kernel infestation. In localities with lower infection, the species spectrum was narrower.

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Mycotoxins in the Sorghum Grain Chain

Leslie¹

2014

Mycotoxin Reduction in Grain Chains

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Phytotoxicity of pathogenic fungi and their mycotoxins to cereal seedling viability

Cited by 24 publications

References 0 publications

Correlation between black point symptoms and fungal infestation and seedling viability of wheat kernels

Correlation between black point symptoms and fungal infestation and seedling viability of wheat kernels

Fungal infection of malt barley kernels in Slovak Republic

Mycotoxins in the Sorghum Grain Chain

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