Mating behavior of a Northern Italian population of Fusarium verticillioides associated with maize

Venturini, G.; Assante, Gemma; Toffolatti, Silvia Laura; Vercesi, A.

doi:10.1007/s13353-011-0042-4

Cited by 12 publications

(13 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our results showed that 40% of examined isolates possess the MAT1-1 idiomorph and 60% possessed the MAT1-2 idiomorph. In other studies a 1:2 ratio of mating types were described for F. oxysporum [21,43] and F. verticilioides [44]. It is tempting to suggest that MAT1-2 can be a predominant mating type also among Polish isolates of F. culmorum, although a larger population of fungus should be analyzed before final conclusion.…”

Section: P-valuementioning

confidence: 91%

Association of mating-type with mycelium growth rate and genetic variability of Fusarium culmorum

2013

View full text Add to dashboard Cite

show abstract

Section: P-valuementioning

confidence: 91%

Association of mating-type with mycelium growth rate and genetic variability of Fusarium culmorum

2013

View full text Add to dashboard Cite

show abstract

“…Mycotoxins represent an important threat to human health, particularly in tropical countries that are characterized by high temperature and humidity. Several mycotoxins can be synthesized by different fungal genera, but the most toxic and widespread are aflatoxins, ochratoxins, fumonisins and trichothecenes, produced by members of the genera Aspergillus section Flavi (ASF), Aspergillus section Nigri (ASN), Penicillium (PEN) and Fusarium (FUS) (Williams et al, 2004;Venturini et al, 2011Venturini et al, , 2013. A great deal of attention has been given to fungal species belonging to ASF (Varga et al, 2011), because of their ability to produce aflatoxins, which are considered to be one of the most threatening food safety problems worldwide (Kumar et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Fungal contamination and aflatoxin content of maize, moringa and peanut foods from rural subsistence farms in South Haiti

Aristil

Venturini

Maddalena

et al. 2020

Journal of Stored Products Research

Self Cite

View full text Add to dashboard Cite

Mycotoxins are toxic, low molecular weight compounds produced by fungi. Among them, aflatoxins are the most carcinogenic and they mainly impact on rural communities of developing countries. The present study supplies data on mycobiota and aflatoxin contamination in the most common food products consumed in Haiti. The study concerns analyses performed on 49 samples of meals and seeds collected in South Haiti and tested for fungal occurrence and aflatoxin content by HPLC-DAD technique. The results revealed that three main fungal genera affected Haitian food products: Aspergillus spp. (Section Flavi and Nigri), followed by Penicillium spp. and Fusarium spp. Aflatoxin was present in more than half of the samples of maize (Zea mays L.) kernels (55%), maize meal (57%) and moringa (Moringa oleifera Lam.) seeds (64%), and in 25% of peanut (Arachis hypogaea L.) samples. The tested food products were mostly contaminated by aflatoxin B 1 (AFB 1) followed by aflatoxin B 2 (AFB 2), while no aflatoxins type G were detected. The total concentration of aflatoxins in the positive samples was 228 mg/kg on average, i.e., fiftyseven and eleven times higher than the maximum levels allowed in Europe and USA, respectively. Both the presence of aflatoxigenic fungi and aflatoxin contamination in maize kernels seemed to be related to agricultural practices, such as weed control, irrigation and growing cycle length. These findings suggest that the Haitian population is strongly exposed to aflatoxin risk. This risk could be reduced by exploiting simple and accessible farming strategies for minimizing mycotoxin contamination, at least for maize.

show abstract

“…In many Fusarium species, the ratio of MAT idiomorphs was significantly different from the theoretical 1:1 ratio expected in an idealised population, i.e. in a population of F. verticillioides , the mating ratio was 2:1 for isolates originated from maize in Italy, Brazil and the Philippines (Cumagun 2007; de Oliveira Rocha et al 2011; Venturini et al 2011). The same mating ratio was observed for an F. subglutinans population in South Africa (Britz et al 1998).…”

Section: Discussionmentioning

confidence: 88%

“…The achieved results may suggest that MAT1-2 is a predominant mating type in the F. oxysporum population in Poland, although a larger population of fungus originated from different geographic locations should be analysed before reaching a final conclusion. The predominance of one mating type can cause a limitation or lack of the possibility of sexual reproduction inside the population (Venturini et al 2011). RT-PCR analysis proved that the F. oxysporum MAT genes are expressed (Yun et al 2000).…”

Section: Discussionmentioning

confidence: 99%

Genetic variation of Fusarium oxysporum isolates forming fumonisin B1 and moniliformin

et al. 2012

View full text Add to dashboard Cite

Thirty single-spore isolates of a toxigenic fungus, Fusarium oxysporum , were isolated from asparagus spears and identified by species-specific polymerase chain reaction (PCR) and translation elongation factor 1- α (TEF) sequence analysis. In the examined sets of F. oxysporum isolates, the DNA sequences of mating type genes ( MAT ) were identified. The distribution of MAT idiomorph may suggest that MAT1-2 is a predominant mating type in the F. oxysporum population. F. oxysporum is mainly recognised as a producer of moniliformin—the highly toxic secondary metabolite. Moniliformin content was determined by high-performance liquid chromatography (HPLC) analysis in the range 0.05–1,007.47 μg g −1 (mean 115.93 μg g −1 ) but, also, fumonisin B 1 was detected, in the concentration range 0.01–0.91 μg g −1 (mean 0.19 μg g −1 ). There was no association between mating types and the mycotoxins biosynthesis level. Additionally, a significant intra-species genetic diversity was revealed and molecular markers associated with toxins biosynthesis were identified.

show abstract

Mating behavior of a Northern Italian population of Fusarium verticillioides associated with maize

Cited by 12 publications

References 13 publications

Association of mating-type with mycelium growth rate and genetic variability of Fusarium culmorum

Association of mating-type with mycelium growth rate and genetic variability of Fusarium culmorum

Fungal contamination and aflatoxin content of maize, moringa and peanut foods from rural subsistence farms in South Haiti

Genetic variation of Fusarium oxysporum isolates forming fumonisin B1 and moniliformin

Contact Info

Product

Resources

About