2. Articole
Permanent URI for this collectionhttps://msuir.usm.md/handle/123456789/13419
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Item Phytostimulatory potential of some bacteria for wheat and maize [Articol](Editura USM, 2025) Todiras, Vasile; Corcimaru, Serghei; Slanina, Valerina; Balan, Ludmila; Prisacari, SvetlanaIncreasing plant productivity and improving crop quality in agriculture is one of the main tasks of the biological and agronomic sciences. Since wheat and maize are important for the Moldovan agriculture, our goal was to identify strains of microorganisms that could be beneficiary for these crops. Pseudomonas fluorescens CNMN-PsB-01 and P. fluorescens CNMN- PsB-02 were selected for their ability to stimulate wheat and maize by causing 10.8-22.6% and 9.2- 26.2% increases in plant root length and seedling dry mass respectively.Item Antibacterial activity of some Bacillus strains in dependence on the culture medium [Articol](Editura USM, 2025) Slanina, Valerina; Balan, LudmilaBiological control of plant pathogenic bacteria, which includes the use of antagonistic microorganisms, is an alternative method to the application of chemicals. Bacteria belonging to the Bacillus spp. have demonstrated antimicrobial activity against plant pathogenic microorganisms due to the produced secondary metabolites. Thus, it is of particular interest to study and to identify new microorganisms, in particular Bacillus spp., possessing pronounced antimicrobial activity against phytopathogens that can be used as biotechnological alternatives for agriculture, with the production of biologically active preparations based on the microorganism strains or metabolites. From 12 strains of Bacillus spp. three strains, grown on liquid media, were selected and characterized by high antimicrobial activity against pathogenic plant bacteria, both bacterial suspension and cell-free supernatant showed. The selected strains can be proposed as potential bioactive antagonists against phytopathogens, which can be used to obtain bioactive preparations useful for agriculture in the field of plant protection and cell-free supernatant may have prospects for use in the medical field to obtain bioactive preparations due to the ability to produce various secondary metabolites such as antibiotics.Item Antagonistic activity of bacterial isolates against fusarium pathogens(CEP USM, 2024) Bîrsa, Maxim; Balan, Ludmila; Bogdan-Golubi, Nina; Moldovan, CristinaActinobacteria and bacteria stored in NCNM were tested against F. oxysporum CNMN-FF-06 and F. solani CNMN-FF-07. In case of antagonistic activity against F. solani, results were much higher in comparison with F. oxysporum, ranged between 12.3 – 19.3 mm. The highest result of antifungal activity of bacteria against F. oxysporum was registered for the strain Bacillus velezensis CNMN-BB-16 (25.0 mm). For F. solani, the highest result was registered for the strain Micrococcus yunnanensis CNMN-BM-19 (33.0 mm). Results of the present research had shown that biocontrol agents can be used as an alternative for chemical pesticides utilized against phytopathogenic fungi.Item Tulpina pseudomonas fluorescens CNMN-PSB-02 cu efect stimulator asupra grâului comun de toamnă(CEP USM, 2024) Balan, Ludmila; Slanina, Valerina; Bogdan-Golubi, NinaLack of mineral fertilizers in the soil, adverse weather conditions such as drought and high temperatures, faced by our country today, but also the negative effects of fungal diseases, cause harvest losses. Our research focused on the development of biotechnological solutions for agriculture by obtaining of plant growth stimulators. The present study showed the influence of Pseudomonas fluorescens CNMN-PsB-02 on the growth stimulation of wheat plants the height increased twice, mass of plants by 3,6 times and root mass increased by 2,5 times.