Effect of disease severity on yield and grain fumonisin concentration of maize hybrids inoculated with Fusarium verticillioides

Presello, Daniel A.; Botta, Grisela; Iglesias, Juliana; Eyherabide, Guillermo Hugo

doi:10.1016/j.cropro.2007.08.015

Cited by 61 publications

(39 citation statements)

References 15 publications

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“…It has been reported that the effect of maize inoculation with F. verticillioides on grain yields depends on the maize hybrid used [28]. Results of the present study cannot be contrasted with those reports since our assays were conducted under conditions of natural fungal infection and comprised the analysis of only one maize variety.…”

Section: Maize Yieldscontrasting

confidence: 55%

“…The consistent effectiveness observed for this biological agent in the different field assays carried out represents a promising option for the control of F. verticillioides-maize interactions since classical control strategies are thought to lose effect against facultative endophytic pathogens like F. verticillioides. Previously reported results related to the infection of maize by this fungus range from systemic asymptomatic processes to severe rotting and wilting [9,28,29]. Different factors may influence such a particular relation between F. verticillioides and maize within which fungal inoculum sizes, nutritional state of the plant, plant [33] found that fungal infection and fumonisin production in maize was limited to drought-stressed fields.…”

Section: Fusarium Verticillioides Infection Of Maize Grains Fmentioning

confidence: 99%

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Field Studies on the Relationship betweenFusarium verticillioidesand Maize (Zea maysL.): Effect of Biocontrol Agents on Fungal Infection and Toxin Content of Grains at Harvest

Pereira

Nesci

Castillo

et al. 2011

International Journal of Agronomy

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Maize (Zea mays L.) is a staple food for the majority of the world's population. Fusarium verticillioides (Sacc.) Nirenberg (Teleomorph: Gibberella moniliformis Wineland; synonym: F. moniliformis) is both a saprophyte and a parasite of maize and can also be found as an endophyte. The presence of this fungus in maize constitutes an imminent risk due to its ability to produce fumonisins, mycotoxins with proven carcinogenic effects. The present work investigated biocontrol activity of Bacillus amyloliquefaciens and Microbacterium oleovorans against F. verticillioides infection and fumonisin B 1 production in field-grown maize during four consecutive growing seasons. Treatment with B. amyloliquefaciens consistently reduced F. verticillioides inoculum and fumonisin content of harvested grains. F. verticillioides count and fumonisin levels correlated negatively with rainfall regimes; however, none of these parameters showed significant correlation with yields. Treatment with these biocontrol agents may improve phytosanitary quality of the grains and reduce toxicological risk in the maize agroecosystem.

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Section: Maize Yieldscontrasting

confidence: 55%

Section: Fusarium Verticillioides Infection Of Maize Grains Fmentioning

confidence: 99%

Field Studies on the Relationship betweenFusarium verticillioidesand Maize (Zea maysL.): Effect of Biocontrol Agents on Fungal Infection and Toxin Content of Grains at Harvest

Pereira

Nesci

Castillo

et al. 2011

International Journal of Agronomy

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“…Selection after inoculation of a low fumonisin producer isolate was effective to develop maize genotypes expressing resistance to field FB accumulation in some environments. High association between disease severity and FB concentration after inoculation with low and high toxigenic isolates belonging to Section Liseola, which was observed here and in previous reports (Presello et al 2008), indicates that selection for disease resistance accounts for most of the variability for FB accumulation. Thus, since maize selection projects usually involve large inbred samples and accurate mycotoxin assessment is quite cost and time demanding, discarding inbreds by disease severity only might be worthwhile in early stages of selection.…”

Section: Discussionsupporting

confidence: 72%

“…Petch] are among the most important pathogens causing ear rots in maize (Zea mays L.). Fusarium infections cause yield losses (Presello et al 2008) and grain contamination with several mycotoxins, including fumonisins (FBs) produced by F. verticillioides and F. proliferatum, deoxynivalenol (DON), and zearalenone (ZEA) produced by F. graminearum. All of these mycotoxins are toxic to both humans and animals.…”

Section: Introductionmentioning

confidence: 99%

Responses to selection of S5 inbreds for broad-based resistance to ear rots and grain mycotoxin contamination caused by Fusarium spp. in maize

Presello

Pereyra²,

Iglesias

et al. 2010

Euphytica

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Random S 5 inbreds derived from three F 2 maize (Zea mays L.) populations (L1934 9 LP918, LP915 9 LP2541 and L7310 9 L7266) were selected for ear rot resistance after inoculation with a lowfumonisin producing isolate belonging to F. proliferatum. The four less susceptible and the four most susceptible inbreds from each population were crossed and F 1 seeds were pooled. Resistant and susceptible pools from each population were evaluated for disease severity (percentage of the ear visibly diseased) after inoculation with the isolate used for selection, and high toxigenic isolates belonging to F. verticillioides and F. graminearum. Grain mycotoxin concentration was assessed by ELISA. Differences in disease resistance to each fungus were observed between resistant and susceptible pools in most populations and environments indicating that selection after inoculation with a single species might be effective to develop broad-based resistance to Fusarium. Resistant pools exhibited, after inoculation with F. verticillioides, low grain fumonisin concentrations in most populations and years. Positive genotypic correlations between disease severity and fumonisin concentration (0.89 \ r g \ 0.98, depending on fungal species and year) indicate that selection for disease severity accounted for most of the variability for field fumonisin accumulation. Selection seemed to be also effective to reduce grain deoxynivalenol and zearalenone concentrations after inoculation with F. graminearum. Ratios between grain deoxynivalenol concentration and disease severity were lower in L7310 9 L7266 than those observed in the other populations suggesting that mechanisms affecting mycotoxin accumulation might exist in this population and additional responses should be feasible if including deoxynivalenol concentration as another selection parameter.

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“…F. subglutinans, F. proliferatum, F. culmorum) (Bottalico 1998;Logrieco et al 2002). Ear rot decreases both yield and quality (Presello et al 2008;Vigier et al 2001). Quality reduction is mainly caused by different mycotoxins.…”

Section: Introductionmentioning

confidence: 99%

Mycotoxin accumulation and corresponding ear rot rating in three maturity groups of European maize inoculated by two Fusarium species

et al. 2009

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Fusarium graminearum (FG) and F. verticillioides (FV) produce the mycotoxins deoxynivalenol (DON), zearalenone (ZEA) and fumonisins (FUM), respectively, in maize. The EU released limits for these toxins in food. Growing resistant varieties is one alternative to fulfill these limits. Quantification of mycotoxin concentrations is expensive and time consuming. If indirect selection based on cost efficient and fast ear rot rating is feasible, this could increase efficiency of selection. The objective of this study was to analyze correlations between mycotoxin concentrations and ear rot rating by inoculating three maturity groups (early, mid-late, late) each comprising about 50 inbred lines tested in Central and Southern Europe. In the early maturity group flint lines were more susceptible in all instances except ZEA than dent lines. Broad ranges and significant (P \ 0.01) genotypic variances were detected, but also genotype 9 environment interaction variances were significant (P \ 0.01). Heritabilities of ear rot rating were similar or higher than those of mycotoxin concentrations (0.61-0.93 and 0.56-0.89, respectively). Although high genotypic correlations between FUM and DON or ZEA were found (0.77; 0.76, respectively), separate testing of FV and FG and corresponding mycotoxins is necessary since genotypes resistant to FV were not necessarily resistant to FG and vice versa. Medium to high heritabilities and high genotypic correlations between ear rot and corresponding mycotoxin concentrations (0.87-0.99) suggest frequent identification of lines with reduced mycotoxin concentrations by ear rot rating. Assuming fixed budgets we conclude that indirect selection by applying cost efficient ear rot rating could increase selection intensity and therefore is more effective than direct selection for reduced mycotoxin concentrations.

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Effect of disease severity on yield and grain fumonisin concentration of maize hybrids inoculated with Fusarium verticillioides

Cited by 61 publications

References 15 publications

Field Studies on the Relationship betweenFusarium verticillioidesand Maize (Zea maysL.): Effect of Biocontrol Agents on Fungal Infection and Toxin Content of Grains at Harvest

Field Studies on the Relationship betweenFusarium verticillioidesand Maize (Zea maysL.): Effect of Biocontrol Agents on Fungal Infection and Toxin Content of Grains at Harvest

Responses to selection of S5 inbreds for broad-based resistance to ear rots and grain mycotoxin contamination caused by Fusarium spp. in maize

Mycotoxin accumulation and corresponding ear rot rating in three maturity groups of European maize inoculated by two Fusarium species

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