Field testing of antagonists of Fusarium head blight incited by Gibberella zeae

Khan, N. I.; Schisler, David A.; Boehm, Michael J.; Lipps, P. E.; Slininger, Patricia J.

doi:10.1016/s1049-9644(03)00157-9

Cited by 87 publications

(53 citation statements)

References 32 publications

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“…In our study, higher grain filling rates were noted for winter wheat spikes non-inoculated with F. culmorum and protected with A. pullulans, compared with untreated spikes. Our results corroborate the earlier findings of Khan et al (2004) who reported that the wheat cultivar Pioneer grown in plots treated with Cryptococcus isolates was characterized by higher 1000 kernel weight. The A. pullulans isolate used to protect winter wheat spikes against F. culmorum in our greenhouse experiment suppressed this pathogen.…”

Section: Discussionsupporting

confidence: 92%

“…According to the cited authors, the probable mechanism of action of the analyzed isolate involves the biodegradation of choline, a compound that stimulates the growth of G. zeae (Engle et al 2004). In a field trial conducted by Khan et al (2004), the majority of yeast isolates, including members of the genus Cryptococcus, suppressed FHB caused by G. zeae, but biocontrol efficacy differed depending on wheat cultivar and weather conditions. In our study the inoculation with F. culmorum considerably reduces grain filling rates, by 46.2 and 75 %, by using respectively the first or the second method in comparison with the control treatment.…”

Section: Discussionmentioning

confidence: 99%

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Antagonistic interactions between Aureobasidium pullulans and Fusarium culmorum, a fungal pathogen of winter wheat

Wachowska

Głowacka

2014

BioControl

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The effect of the biological control agent Aureobasidium pullulans (de Bary) G. Arnaud on the development of Fusarium head blight (FHB) on winter wheat and kernel contamination with fungi of the genera Fusarium, Acremonium, Cladosporium and Penicillium was analyzed in a greenhouse experiment. Scanning electron microscopy was used to evaluate the distribution of A. pullulans cells and aggregates on wheat kernels, infection structures of Fusarium culmorum (W.G. Smith) Sacc and the antagonist-pathogen interactions. Biological control with A. pullulans reduced FHB severity by 21.67 % and improved grain filling by 5.02 %, compared with the control treatment. The survival of A. pullulans was good (to 31 cells per kernel), in particular on the surface and in the crease of kernels, including in pathogen-inoculated wheat plants. A. pullulans cells firmly adhered to F. culmorum hyphae, and damaged them. In most cases, autochthonous communities of filamentous fungi of the genera Acremonium and Penicillium developed at a slower rate after kernel inoculation with the pathogen.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Antagonistic interactions between Aureobasidium pullulans and Fusarium culmorum, a fungal pathogen of winter wheat

Wachowska

Głowacka

2014

BioControl

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“…These strains were isolated from the anthers of wheat, which are the site of infection onset. These strains have been shown to be effective in reducing disease incidence and severity (Khan et al, 2001(Khan et al, , 2004Schisler et al, 2002aSchisler et al, , 2002b. The objective of the current study was to determine the identity of any cyclic lipopeptides associated with the antagonist activity of G. zeae.…”

Section: (C)mentioning

confidence: 99%

Cyclic lipopeptide profile of three Bacillus subtilis strains; antagonists of Fusarium head blight

et al. 2011

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The objective of the study was to identify the lipopetides associated with three Bacillus subtilis strains. The strains are antagonists of Gibberella zeae, and have been shown to be effective in reducing Fusarium head blight in wheat. The lipopeptide profile of three B. subtilis strains (AS43.3, AS43.4, and OH131.1) was determined using mass spectroscopy. Strains AS43.3 and AS43.4 produced the anti-fungal lipopeptides from the iturin and fengycin family during the stationary growth phase. All three strains produced the lipopeptide surfactin at different growth times. Strain OH131.1 only produced surfactin under these conditions. The antifungal activity of the culture supernatant and individual lipopeptides was determined by the inhibition of G. zeae. Cell-free supernatant from strains AS43.3 and AS43.4 demonstrated strong antibiosis of G. zeae, while strain OH131.1 had no antibiosis activity. These results suggest a different mechanism of antagonism for strain OH131.1, relative to AS43.3 and AS43.4.

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“…However this species is used in the product Yield Plus to reduce diseases in fruit stores (Kowalska et al 2012). Khan et al (2004) described also other species Cryptoccocus with high potential for reducing the development of Fusarium spp. on wheat kernels.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of yeast-like fungi to protect Virginia mallow (Sida hermaphrodita) against Sclerotinia sclerotiorum

et al. 2016

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Virginia mallow is a plant from the central and eastern states of North America. A large amount of high quality biomass obtained from V. mallow led to interest in this plant for bioenergy purposes. Unfortunately, high incidence of white rot disease caused by Sclerotinia sclerotiorum destroyed plantations of this plant. In previous attempts, various control strategies were not successful and all treatments failed (including the use of Coniothurium minitans). The aim of the study was to find and evaluate yeast-like fungi for biocontrol of S. sclerotiorum, evaluate the optimal thermal condition for biocontrol efficacy, and describe possible modes of action of potential biocontrol organisms. In dual bioassay test with 19 strains of yeast-like fungi with S. sclerotiorum, antagonistic potential were obtained. At different temperatures variations in antagonistic activity of yeast-like fungi were observed. At all tested temperatures (i.e., 4, 12, and 23°C), positive results were obtained. Extracellular enzymes were produced by the majority of antagonistic yeast, such as: amylases (the most frequent), chitinases, proteases, pectinases and xylanases. In this research, reduction in white rot symptoms on V. mallow stems was significant (P < 0.05). The highest inhibition of disease was observed after treatment with strains (114/64) Candida albidus and (117/10) Pichia anomala.Key words: bioenergy crops, yeast, biocontrol, Sclerotinia sclerotiorum, Sida hermaphrodita, antagonistic activity.Résumé : La mauve de Virginie est une plante originaire des États du centre et de l'est d'Amérique du Nord. L'abondante quantité de biomasse de haute qualité qu'on en tire a fait en sorte qu'on s'intéresse à sa culture pour la production de bioénergie. Malheureusement, la forte incidence de pourriture blanche attribuable à Sclerotinia sclerotiorum a détruit les peuplements. Les tentatives antérieures de lutte selon diverses méthodes n'ont pas donné de bons résultats et tous les traitements se sont soldés par un échec (y compris le recours à Coniothurium minitans). La présente étude avait pour buts de trouver puis d'évaluer des cryptogames semblables aux levures qui permettraient de lutter biologiquement contre le parasite, d'établir les conditions thermiques idéales pour cela et de décrire les modes d'action possibles des organismes pouvant servir à la lutte biologique. Un antagonisme potentiel a été observé lors de l'essai biologique double réalisé avec 19 souches de cryptogames de type levure sur une culture de S. sclerotiorum. Cette activité antagoniste varie avec la température. Des résultats positifs ont été obtenus à toutes les températures testées (4, 12, et 23°C). La plupart des levures antagonistes synthétisent des enzymes extracellulaires comme des amylases (le plus souvent), des chitinases, des protéases, des pectinases et des xylanases. La diminution des symptômes de pourriture blanche sur la tige de la mauve de Virginie observée durant ces recherches est significative (P < 0,05). Le plus fort degré d'inhibition de la m...

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Field testing of antagonists of Fusarium head blight incited by Gibberella zeae

Cited by 87 publications

References 32 publications

Antagonistic interactions between Aureobasidium pullulans and Fusarium culmorum, a fungal pathogen of winter wheat

Antagonistic interactions between Aureobasidium pullulans and Fusarium culmorum, a fungal pathogen of winter wheat

Cyclic lipopeptide profile of three Bacillus subtilis strains; antagonists of Fusarium head blight

Evaluation of yeast-like fungi to protect Virginia mallow (Sida hermaphrodita) against Sclerotinia sclerotiorum

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