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Antifungal activity of Bacillus sp. against Fusarium graminearum

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2021
Abstract (280.8Kb)
Authors
Knežević, Isidora
Dervišević, Marina
Đorđević, Nikola
Đorđević, Snežana
Conference object (Published version)
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Abstract
Fusarium graminearum Schwabe is one of the most important pathogens of wheat. The presence of this pathogen leads to loss of yield. The most common measure to control F. graminearum is the use of chemical compounds. Considering the constant application of compounds of the same mechanism of action, resistance to these compounds often occurs. The use of antagonistic bacteria has good potential in controlling this pathogen. In this research, the antifungal activity of antagonistic bacteria of the genus Bacillus on an isolate of F. graminearum under laboratory conditions was investigated. The inhibitory effect of 10 strains of bacteria was examined in the method of dual cultivation. Mycelia were transferred to a fresh PDA medium, and a suspension of bacteria was applied at 3 cm from the mycelial disc. After seven days of incubation at 25 ̊C, the inhibitory activity of specific bacterial strains against F. graminearum was observed. The highest percentage of inhibition was recorded in four s...trains of Bacillus mojavensis Roberts et al. (99/18 R-6, 31/18 RS 7-1, 31/18 RS-4 and 31/18 RS-8), in two strains of Bacillus velezensis Ruiz-García et al. (31/18 RK 1-1 and RK 3-2) and one strain of Bacillus amyloliquefaciens (Priest et al.) Borriss et al. 31/18 RK 1-2. The percentage of inhibition in these strains was between 30 and 40%. In two strains of Bacillus licheniformis (Weigmann) Chester 31/18 RS-9 and 31/18 RS-10, a percentage of inhibition of 11% and 17%, respectively, was recorded. In contrast, Bacillus licheniformis RS 92/17 6B did not show any inhibitory activity, according to F. graminearum. As this research indicates a good potential of Bacillus species in controlling F. graminearum, further research should examine their effectiveness in field conditions because the use of these bacteria would provide wheat protection without the possible risk of resistance.

Keywords:
Fusarium graminearum / Bacillus / dual cultivation
Source:
Book of Abstracts : X International Symposium on Agricultural Sciences "AgroReS 2021", 27-29, May, 2021 Trebinje, Bosnia and Herzegovina, 2021, 48-
Publisher:
  • Banja Luka : Poljoprivredni fakultet

ISBN: 978-99938-93-69-1

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_rivec_590
URI
http://RIVeC.institut-palanka.rs/handle/123456789/590
Collections
  • Radovi istraživača 2 / Researcher's papers 2
Institution/Community
Institut za povrtarstvo
TY  - CONF
AU  - Knežević, Isidora
AU  - Dervišević, Marina
AU  - Đorđević, Nikola
AU  - Đorđević, Snežana
PY  - 2021
UR  - http://RIVeC.institut-palanka.rs/handle/123456789/590
AB  - Fusarium graminearum Schwabe is one of the most important pathogens of wheat. The presence of this pathogen leads to loss of yield. The most common measure to control F. graminearum is the use of chemical compounds. Considering the constant application of compounds of the same mechanism of action, resistance to these compounds often occurs. The use of antagonistic bacteria has good potential in controlling this pathogen. In this research, the antifungal activity of antagonistic bacteria of the genus Bacillus on an isolate of F. graminearum under laboratory conditions was investigated. The inhibitory effect of 10 strains of bacteria was examined in the method of dual cultivation. Mycelia were transferred to a fresh PDA medium, and a suspension of bacteria was applied at 3 cm from the mycelial disc. After seven days of incubation at 25 ̊C, the inhibitory activity of specific bacterial strains against F. graminearum was observed. The highest percentage of inhibition was recorded in four strains of Bacillus mojavensis Roberts et al. (99/18 R-6, 31/18 RS 7-1, 31/18 RS-4 and 31/18 RS-8), in two strains of Bacillus velezensis Ruiz-García et al. (31/18 RK 1-1 and RK 3-2) and one strain of Bacillus amyloliquefaciens (Priest et al.) Borriss et al. 31/18 RK 1-2. The percentage of inhibition in these strains was between 30 and 40%. In two strains of Bacillus licheniformis (Weigmann) Chester 31/18 RS-9 and 31/18 RS-10, a percentage of inhibition of 11% and 17%, respectively, was recorded. In contrast, Bacillus licheniformis RS 92/17 6B did not show any inhibitory activity, according to F. graminearum. As this research indicates a good potential of Bacillus species in controlling F. graminearum, further research should examine their effectiveness in field conditions because the use of these bacteria would provide wheat protection without the possible risk of resistance.
PB  - Banja Luka : Poljoprivredni fakultet
C3  - Book of Abstracts : X International Symposium on Agricultural Sciences "AgroReS 2021", 27-29, May, 2021 Trebinje, Bosnia and Herzegovina
T1  - Antifungal activity of Bacillus sp. against Fusarium graminearum
SP  - 48
UR  - https://hdl.handle.net/21.15107/rcub_rivec_590
ER  - 
@conference{
author = "Knežević, Isidora and Dervišević, Marina and Đorđević, Nikola and Đorđević, Snežana",
year = "2021",
abstract = "Fusarium graminearum Schwabe is one of the most important pathogens of wheat. The presence of this pathogen leads to loss of yield. The most common measure to control F. graminearum is the use of chemical compounds. Considering the constant application of compounds of the same mechanism of action, resistance to these compounds often occurs. The use of antagonistic bacteria has good potential in controlling this pathogen. In this research, the antifungal activity of antagonistic bacteria of the genus Bacillus on an isolate of F. graminearum under laboratory conditions was investigated. The inhibitory effect of 10 strains of bacteria was examined in the method of dual cultivation. Mycelia were transferred to a fresh PDA medium, and a suspension of bacteria was applied at 3 cm from the mycelial disc. After seven days of incubation at 25 ̊C, the inhibitory activity of specific bacterial strains against F. graminearum was observed. The highest percentage of inhibition was recorded in four strains of Bacillus mojavensis Roberts et al. (99/18 R-6, 31/18 RS 7-1, 31/18 RS-4 and 31/18 RS-8), in two strains of Bacillus velezensis Ruiz-García et al. (31/18 RK 1-1 and RK 3-2) and one strain of Bacillus amyloliquefaciens (Priest et al.) Borriss et al. 31/18 RK 1-2. The percentage of inhibition in these strains was between 30 and 40%. In two strains of Bacillus licheniformis (Weigmann) Chester 31/18 RS-9 and 31/18 RS-10, a percentage of inhibition of 11% and 17%, respectively, was recorded. In contrast, Bacillus licheniformis RS 92/17 6B did not show any inhibitory activity, according to F. graminearum. As this research indicates a good potential of Bacillus species in controlling F. graminearum, further research should examine their effectiveness in field conditions because the use of these bacteria would provide wheat protection without the possible risk of resistance.",
publisher = "Banja Luka : Poljoprivredni fakultet",
journal = "Book of Abstracts : X International Symposium on Agricultural Sciences "AgroReS 2021", 27-29, May, 2021 Trebinje, Bosnia and Herzegovina",
title = "Antifungal activity of Bacillus sp. against Fusarium graminearum",
pages = "48",
url = "https://hdl.handle.net/21.15107/rcub_rivec_590"
}
Knežević, I., Dervišević, M., Đorđević, N.,& Đorđević, S.. (2021). Antifungal activity of Bacillus sp. against Fusarium graminearum. in Book of Abstracts : X International Symposium on Agricultural Sciences "AgroReS 2021", 27-29, May, 2021 Trebinje, Bosnia and Herzegovina
Banja Luka : Poljoprivredni fakultet., 48.
https://hdl.handle.net/21.15107/rcub_rivec_590
Knežević I, Dervišević M, Đorđević N, Đorđević S. Antifungal activity of Bacillus sp. against Fusarium graminearum. in Book of Abstracts : X International Symposium on Agricultural Sciences "AgroReS 2021", 27-29, May, 2021 Trebinje, Bosnia and Herzegovina. 2021;:48.
https://hdl.handle.net/21.15107/rcub_rivec_590 .
Knežević, Isidora, Dervišević, Marina, Đorđević, Nikola, Đorđević, Snežana, "Antifungal activity of Bacillus sp. against Fusarium graminearum" in Book of Abstracts : X International Symposium on Agricultural Sciences "AgroReS 2021", 27-29, May, 2021 Trebinje, Bosnia and Herzegovina (2021):48,
https://hdl.handle.net/21.15107/rcub_rivec_590 .

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