Screening of antagonistic bacteria against fungal phytopathogens
Water samples, bottom sediments and biofilms of lake were investigated to the microbial diversity. One hundred twenty-two isolated microorganisms were identified by cultural, morphological and biochemical characteristics. Bacterial strains were screened to evaluate their ability to produce amylase,...
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| Language: | English |
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Galati University Press
2025-03-01
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| Series: | ACROSS |
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| Online Access: | https://www.gup.ugal.ro/ugaljournals/index.php/across/article/view/7462 |
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| author | Nina BOGDAN Valerina SLANINA Tamara SÎRBU Ludmila BALAN Robert Marian RUGINESCU |
| author_facet | Nina BOGDAN Valerina SLANINA Tamara SÎRBU Ludmila BALAN Robert Marian RUGINESCU |
| author_sort | Nina BOGDAN |
| collection | DOAJ |
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Water samples, bottom sediments and biofilms of lake were investigated to the microbial diversity. One hundred twenty-two isolated microorganisms were identified by cultural, morphological and biochemical characteristics. Bacterial strains were screened to evaluate their ability to produce amylase, catalase, lipase and cellulase enzymes. Aquatic bacterial strains are active producers of valuable exoenzymes with antimicrobial properties. Isolates demonstrated developed enzymatic complex and antifungal activity against phytopathogens - Alternaria alternata, Botrytis cinerea, Fusarium solani, Fusarium oxysporum. Most active and stable to enzymatic and antifungal activities strains were identified as: Bacillus velezensis (Bacillus amyloliquefaciens) and Micrococcus yunnanensis (Micrococcus luteus) by PCR-based molecular analysis. Due to results of antagonistic activity in this study aquatic bacteria are promising for application in agriculture sector.
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| format | Article |
| id | doaj-art-bad8151dee824491bb0fa809d6bf232f |
| institution | OA Journals |
| issn | 2602-1463 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Galati University Press |
| record_format | Article |
| series | ACROSS |
| spelling | doaj-art-bad8151dee824491bb0fa809d6bf232f2025-08-20T02:16:06ZengGalati University PressACROSS2602-14632025-03-0162Screening of antagonistic bacteria against fungal phytopathogensNina BOGDAN0Valerina SLANINA1Tamara SÎRBU2Ludmila BALAN3Robert Marian RUGINESCU4Institute of Microbiology and Biotechnology (Moldova)Institute of Microbiology and Biotechnology (Moldova)Institute of Microbiology and Biotechnology (Moldova)Institute of Microbiology and Biotechnology (Moldova)Institute of Biology Bucharest, Romanian Academy (Romania) Water samples, bottom sediments and biofilms of lake were investigated to the microbial diversity. One hundred twenty-two isolated microorganisms were identified by cultural, morphological and biochemical characteristics. Bacterial strains were screened to evaluate their ability to produce amylase, catalase, lipase and cellulase enzymes. Aquatic bacterial strains are active producers of valuable exoenzymes with antimicrobial properties. Isolates demonstrated developed enzymatic complex and antifungal activity against phytopathogens - Alternaria alternata, Botrytis cinerea, Fusarium solani, Fusarium oxysporum. Most active and stable to enzymatic and antifungal activities strains were identified as: Bacillus velezensis (Bacillus amyloliquefaciens) and Micrococcus yunnanensis (Micrococcus luteus) by PCR-based molecular analysis. Due to results of antagonistic activity in this study aquatic bacteria are promising for application in agriculture sector. https://www.gup.ugal.ro/ugaljournals/index.php/across/article/view/7462bacteriaphytopathogensenzyme |
| spellingShingle | Nina BOGDAN Valerina SLANINA Tamara SÎRBU Ludmila BALAN Robert Marian RUGINESCU Screening of antagonistic bacteria against fungal phytopathogens ACROSS bacteria phytopathogens enzyme |
| title | Screening of antagonistic bacteria against fungal phytopathogens |
| title_full | Screening of antagonistic bacteria against fungal phytopathogens |
| title_fullStr | Screening of antagonistic bacteria against fungal phytopathogens |
| title_full_unstemmed | Screening of antagonistic bacteria against fungal phytopathogens |
| title_short | Screening of antagonistic bacteria against fungal phytopathogens |
| title_sort | screening of antagonistic bacteria against fungal phytopathogens |
| topic | bacteria phytopathogens enzyme |
| url | https://www.gup.ugal.ro/ugaljournals/index.php/across/article/view/7462 |
| work_keys_str_mv | AT ninabogdan screeningofantagonisticbacteriaagainstfungalphytopathogens AT valerinaslanina screeningofantagonisticbacteriaagainstfungalphytopathogens AT tamarasirbu screeningofantagonisticbacteriaagainstfungalphytopathogens AT ludmilabalan screeningofantagonisticbacteriaagainstfungalphytopathogens AT robertmarianruginescu screeningofantagonisticbacteriaagainstfungalphytopathogens |