Biological and fungicidal antagonism of Sclerotium cepivorum for controlling onion white rot disease

Shalaby, M. E.; Ghoniem, Kamal E.; El-Diehi, Mohamed A.

doi:10.1007/s13213-013-0621-1

Cited by 12 publications

(8 citation statements)

References 25 publications

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“…At the end of experiment, the survival of viable sclerotia was decreased to 8.67% of culture filtrates treatment compared with 87.33% in untreated soil. The results presented in this study show a proportion of the degraded sclerotia are in accordance with those obtained by Shalaby et al (2013) who recorded that the sclerotial germination percentage of S. cepivora was affected by soaking in culture filtrates of Bacillus subtilis isolates.…”

Section: Greenhouse Experimentssupporting

confidence: 92%

“…Moreover, the culture filtrates increased peroxidase and chitinase enzyme activities by 167.40 and 229.16%, respectively over the control (Table 8). Obtained results are in harmony with those obtained by Sharma et al (2012), Shalaby et al (2013) and Elshahawy et al (2017a).…”

Section: Defence Enzyme Activitiessupporting

confidence: 90%

“…Reduction in percentage of infection of onion plants attacked by S. cepivora might be referred to the high cumulative of culture filtrates into the root area, before sowing and throughout growing season. Similar demonstration was explained by Kay and Stewart (1994), Shalaby et al (2013) and Elshahawy et al (2017b). Moreover, under greenhouse conditions, P. lilacinum culture filtrates have been reported to reduce Sclerotinia sclerotiorum disease severity by 83.3% (Elsherbiny et al, 2019).…”

Section: White Rot Disease Incidencesupporting

confidence: 84%

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Role of Purpureocillium lilacinum Cultural Filtrate in Controlling Onion White Rot

Ali

2020

Journal of Plant Protection and Pathology

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Onion white rot is one of the most destructive diseases threat onion production in Egypt. The present study assessed the effect of Purpureocillium lilacinum culture filtrates in vitro and in vivo conditions on Stromatinia cepivora at 75%concentration. Bioagent culture filtrates inhibited the mycelial growth, sclerotial formation and myceliogenic germination of S. cepivora by 82.59, 100 and 93.33%, respectively. The culture filtrates at 75% increased cell membrane permeability of S. cepivora compared to the control. The in vitro analysis revealed that 92.5% of the sclerotia were lost its activity in the soil when treated with filtrates and significantly decreased the disease incidence and severity by 95.10 and 98.30%, respectively under greenhouse conditions. However, soil previously infested with S. cepivora sclerotia and handled continuously with bioagent culture filtrate for 6 months before onion cultivation undoubtedly decreased the disease incidence and severity. During 6 months after field culture filtrates treatment, more than 80 and 60% of the sclerotia failed to emergence in trial I and II plots experiment, respectively. After one-year culture filtrate treatment in consecutive onion field crop cultivation, filtrates were more efficient than control in decreasing white rot incidence attendant with low inoculum density trial field (77.67sclerotia/kg of soil). Consequently, a decrease in white rot incidence resulting promotion to vegetative parameters of culture filtrate treated onion plants in pots and increase growth and bulb yield productivity in field. Decreasing disease incidence and severity was associated with increase activities of antioxidant enzymes polyphenol oxidase, peroxidase and chitinase by application of culture filtrates.

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Section: Greenhouse Experimentssupporting

confidence: 92%

Section: Defence Enzyme Activitiessupporting

confidence: 90%

Section: White Rot Disease Incidencesupporting

confidence: 84%

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Role of Purpureocillium lilacinum Cultural Filtrate in Controlling Onion White Rot

Ali

2020

Journal of Plant Protection and Pathology

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“…It is logic to assume that the yield increase resulted, at least partly, from controlling the fungal pathogens. In this respect, Abd-Elbaky et al (2012) found that B. pumilus applications significantly increased onion bulb yield, whereas Shalaby et al (2013) reported that B. subtilis treatment enhanced the chlorophyll content, the development of the root and foliage systems, the dry matter of the foliage, and the bulb mass of onion plants grown under field conditions. Kim et al (2003) reported that 2 Bacillus strains could inhibit the growth of several plant pathogens such as R. solani and Pythium sp.…”

Section: Discussionmentioning

confidence: 99%

Application of Bacillus pumilus isolates for management of black rot disease in strawberry

Abd-El-Kareem

Elshahawy

Abd-Elgawad

2021

Egypt J Biol Pest Control

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Background Black root rot of strawberry plants caused by Rhizoctonia solani, Fusarium solani, and Pythium sp. is a serious disease in Egypt. Biocontrol agents have frequently proved to possess paramount and safe tools against many diseases. The impact of soil treatments with 3 Bacillus pumilus isolates on black root rot disease of strawberry plants caused by R. solani, F., and Pythium sp. under laboratory and field conditions was examined herein on the commonly used ‘Festival’ strawberry cultivar. To increase the bacterial adhesion and distribution on the roots, each seedling was dipped in bacterial cell suspension at 1 × 108 colony-forming units/ml of each separate bacterial isolate for 30 min then mixed with 5% Arabic gum. Results The tested B. pumilus isolates significantly reduced the growth area of these 3 fungi. The two bacterial isolates Nos. 2 and 3 reduced the growth area by more than 85.2, 83.6, and 89.0% for R. solani, F. solani, and Pythium sp., respectively. Likewise, the 3 bacterial isolates significantly (P ≤ 0.05) inhibited the disease under field conditions. Isolates Nos. 2 and 3 suppressed the disease incidence by 64.4 and 68.9% and disease severity by 65.3 and 67.3%, respectively. The fungicide Actamyl had effect similar to that of the 2 isolates. B. pumilus isolates significantly enhanced growth parameters and yields of strawberry plants; isolates Nos. 2 and 3 raised the yield by 66.7 and 73.3%, respectively. Conclusions Bacillus pumilus isolates could effectively manage the black rot disease in strawberry herein. Due to the significant impact of the root rot disease on strawberry yield, B. pumilus should be further tested to manage the disease on strawberry on large scale in Egypt.

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“…(Harman et al, 2004;Galletti et al, 2008). Role played by Trichoderma, Epicoccum and Bacillus antagonists in reducing symptoms of different plant diseases were formerly applied by Hjeljord et al (1998), Tronsmo and Hjeljord (1998), Shalaby et al (2013), Shalaby et al (2014) and Shalaby et al (2015). Upregulation of catalase, peroxidase and polyphenol oxidase is very important in the defensive system of host plants under pathogenic conditions (Hatcher, 1995).…”

Section: Introductionmentioning

confidence: 99%

Potential Impacts of Eminent Fungicide, Certain Bacterial and Fungal Antagonists for Controlling Cercospora Leaf Spot Disease in Sugar Beet.

Hameed

العمرى²

2023

Journal of Sustainable Agricultural Sciences

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pplicability of some isolates and Eminent for control sugar beet cercospora leaf spot disease which cused by C.ercospora beticola was inestigated. The fungicide, Eminent was the superior in vitro treatment in suppressing growth of the pathogenic fungus. Bacillus subtilis (B1), B. subtilis (B2) and Trichoderma koningii (T1) were the most antagonistic against the pathogen. Mycelia of Cercospora beticola were in vitro partially prevented due to application of Eminent, by which its IC 50 reached 1.20 ppm. Whereas 88.12 % of the pathogenic fungus were inhibited due to Trichoderma koningii (T1). Additionally, Relative power of antibiosis (RPA) reached their maximal of 2.11 by B. subtilis (B1). Under field conditions, disease severity was reduced to 20.0 and 21.0 % by Eminent during both seasons, respectively, followed by B. subtilis (B1) and T. koningii (T1). Efficiencies of the tested Epicoccum nigrum isolates for controlling sugar beet Cercospora leaf spot disease were not as expected. The enzyme activities of Peroxidase (POX), Catalase (CAT), and Polyphenol oxidase (PPO) was increased in sugar beet to control C. beticola, and induce systemic acquired resistance. Accordingly, chlorophyll content, total soluble solids (T.S.S), sucrose % and root productivity per ton fed. -1 were also enhanced due to the use the superior control of Eminent, Trichoderma koningii (T1) and Bacillus subtilis (B1), respectively.

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Biological and fungicidal antagonism of Sclerotium cepivorum for controlling onion white rot disease

Cited by 12 publications

References 25 publications

Role of Purpureocillium lilacinum Cultural Filtrate in Controlling Onion White Rot

Role of Purpureocillium lilacinum Cultural Filtrate in Controlling Onion White Rot

Application of Bacillus pumilus isolates for management of black rot disease in strawberry

Potential Impacts of Eminent Fungicide, Certain Bacterial and Fungal Antagonists for Controlling Cercospora Leaf Spot Disease in Sugar Beet.

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