Impact of Bacillus subtilis QST713 mushroom grain spawn treatment on yield and green mould control

Potočnik, Ivana; Todorović, Biljana; Rekanović, Emil; Luković, Jelena; Paunović, Dušanka; Milijašević-Marčić, Svetlana

doi:10.2298/pif1804205p

Cited by 9 publications

(8 citation statements)

References 10 publications

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“…The highest efficacy against T. aggressivum f. europaeum was achieved using the fungicide prochloraz manganese (76.87%) ( Figure 2). Similar efficacy of prochloraz had also been found in a previous study by Potočnik et al (2018) (70.4%), where T. aggressivum f. europaeum (10 4 conidia per m 2 ) was inoculated 10 days after spawning by pouring conidial suspension in holes in the compost. In addition, the results of this study revealed a higher efficacy of prochloraz manganese compared to the similar study of Milijašević-Marčić et al (2017) (49.4%).…”

Section: Resultssupporting

confidence: 83%

“…The lowest dose of B. velezensis QST713 (5 × 10 9 CFU per m 2 ) did not enhance mushroom production, which is consistent with results reported from a study by Kosanović et al (2013), where B. velezensis QST713 was tested at a dose of 8 × 10 9 CFU per m 2 . Control plots inoculated with T. aggressivum exhibited higher A. bisporus production than control plots without the pathogen in two trials out of four conducted by Potočnik et al (2018). In addition, Milijašević-Marčić et al 2017reported the highest yield in inoculated plots treated with both QST713 strain and prochloraz manganese in comparison with the matching plots without the pathogen.…”

Section: Resultsmentioning

confidence: 96%

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The effects of casing soil treatment with bacillus subtilis Ch-13 biofungicide on green mould control and mushroom yield

et al. 2019

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The impact of a biofungicide based on Bacillus subtilis Ch-13 on mushroom yield and efficacy in suppression of Trichoderma aggressivum f. europaeum T77 from Serbia was estimated in comparision with a similar microbial fungicide, Bacillus velezensis QST713, and the chemical fungicide prochloraz manganese. The biofungicide B. velezensis QST713 is registered for treatments of mushrooms and other crops in many countries but it is not currently available on the Serbian market. The tested B. subtilis Ch-13 fungicide enhanced mushroom yield 12%, compared with an uninoculated control, and notably more than B. velezensis QST713 applied at its higher test concentrations. Regarding the efficacy of the biofungicides in control of the compost pathogen T. aggressivum f. europaeum, B. subtilis Ch-13 applied in concentration of 3 × 10 8 CFU per m 2 showed higher efficacy than the higher concentrations (5 × 10 9 and 1 × 10 10 CFU per m 2) of B. velezensis QST713. The biofungicide based on B. subtilis Ch-13 should be further investigated regarding its different modes of application to ensure better efficacy in disease control as it showed beneficial features in both promoting A. bisporus production and suppressing the growth of the aggressive compost pathogen T. aggressivum, the causal agent of devastating green mould disease.

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Section: Resultssupporting

confidence: 83%

Section: Resultsmentioning

confidence: 96%

The effects of casing soil treatment with bacillus subtilis Ch-13 biofungicide on green mould control and mushroom yield

et al. 2019

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“…Similarly, Potocnik et al (2018) found the efficacy of B. subtilis QST713, coated on mushroom grain spawn, to be 53.09% against T. aggressivum f. europaeum T77. In further experiments, Potocnik et al (2019) studied the impact of a bio-fungicide Bacillus subtilis Ch-13 on mushroom yield along with its efficacy in suppressing Trichoderma aggressivum f. europaeum T77 in Serbia.…”

Section: Biological Antagonistsmentioning

confidence: 94%

Major Fungal Contaminants of Mushrooms and Their Management

Ghimire

Pandey

Joshi³

et al. 2021

Int J Appl Sci Biotechnol

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Mushrooms are known for several nutritional and medicinal benefits and are cultivated worldwide. Several fungal contaminants of mushrooms have been serving as the major restraining factor in the growing mushroom industry for a long time. Fungal contaminants like Trichoderma spp., Mycogone spp., Lecanicillium spp., Cladobotryum spp., Coprinus spp., Sependonium spp., Sclerotium rolfsii, and Cephalothecum roseum among many, are found to infect mushroom crops at different stages from spawn run period to maturation of fruiting bodies. These contaminants may reduce yield and/or degrade the quality of fruiting bodies of the mushroom causing economic losses. These contaminants are usually peculiar in terms of their symptomatology on the substrates, disease cycle, epidemiological requirements, and yield losses. Most of these contaminants come from poorly sterilized substrates. Several sterilization techniques like steam sterilization, hot water sterilization, alkalinization, bleaching, and chemical sterilization can be employed to eliminate pre-existing contaminants and each technique has its own relative advantage over others. Besides, biological control involving botanicals and live antagonists can also be used as prophylactic sterilant or as therapeutic sprays. Biological control measures are friendly to the environment and human health. Unlike chemical fungicides (used as sterilant or spray), biological control measures don’t inhibit mushroom mycelial growth and even don’t raise the problem of pesticide resistance in pathogens. Roguing out of infected mushroom fruiting bodies or beds, mushroom house sanitation, and management of vector population are also equally important in preventing the spread of the fungal diseases of mushrooms. Int. J. Appl. Sci. Biotechnol. Vol 9(2): 80-93

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“…The application of B. velezensis QST 713 was examined as a coating for mushroom grain spawn and as compost additive [34], while a B. subtilis strain was tested as a spray applied to mushroom beds [35]. The results of these studies suggested that a biofungicide based on Bacillus species could serve as a harmless alternative to synthetic fungicides in mushroom production [34,[36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Selection and Characterization of a Bacillus Strain for Potential Application in Industrial Production of White Button Mushroom (Agaricus bisporus)

et al. 2022

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White button mushroom—Agaricus bisporus (J.E.Lange) Imbach—is among the most popular cultivated mushrooms worldwide. The most serious challenge in industrial mushroom production is the green mold disease caused by Trichoderma species. Our aim was to isolate and examine bacterial strains from mushroom casing material for their potential use as biocontrol agents. Twenty-seven bacterial strains were isolated and tested against mold pathogens of white button mushroom. The Bacillus velezensis strain SZMC 25431 was selected for further examination and tested under simulated Agaricus cultivation conditions against T. aggressivum SZMC 23834 in a 1200-L Fitotron SGC120 standard plant growth chamber. Our results showed that the bacterial treatment was effective against the pathogen in all cases, but the best results were achieved at an application concentration of 105 cells mL−1. Industrial-scale experiments were also carried out in Agaricus growing houses with a bearing surface of 480 m2: the bacterial suspension was mixed in water tanks applied for daily irrigation. The results suggest that the bacterial treatment may even increase the crop yield of A. bisporus. Based on our results, we concluded that the selected B. velezensis strain may potentially be used for biological and integrated treatment in Agaricus cultivation.

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Impact of Bacillus subtilis QST713 mushroom grain spawn treatment on yield and green mould control

Cited by 9 publications

References 10 publications

The effects of casing soil treatment with bacillus subtilis Ch-13 biofungicide on green mould control and mushroom yield

The effects of casing soil treatment with bacillus subtilis Ch-13 biofungicide on green mould control and mushroom yield

Major Fungal Contaminants of Mushrooms and Their Management

Selection and Characterization of a Bacillus Strain for Potential Application in Industrial Production of White Button Mushroom (Agaricus bisporus)

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