African Journal of Microbiology Research最新文献

Phytochemical screening and antifungal activity of Cassia alata (Linn.) crude leaf extracts 决明粗叶提取物的植物化学筛选及其抗真菌活性

African Journal of Microbiology Research Pub Date : 2023-08-31 DOI: 10.5897/ajmr2023.9711

Edegbo Emmanuel, Oseni Okolo Martin-Luther, Sunday Adegoke Adetunji, Arome Omatola Cornelius, Mudiwa Benjamin, Oyiguh Abraham Joseph, Eneojo Akor Monday, Adeiza Zakari David, Zainab A. Adebayo, Omale Sunday, Y. Abdulrazaq, Musa Qasim, M. Danjuma

引用次数: 0

Morphological, pathogenic and molecular characterization of fungal species associated with mango fruits in Mexico 墨西哥芒果相关真菌的形态、病原和分子特征

African Journal of Microbiology Research Pub Date : 2023-08-31 DOI: 10.5897/ajmr2023.9707

Alejandra Istúriz-Zapata María, Bautista-Baños Silvia, Luis Acosta-Rodríguez José, Hernández-López Mónica, Leticia Barrera-Necha Laura

引用次数: 0

Beneficial microorganisms as affecting root development of upland rice 影响陆稻根系发育的有益微生物

African Journal of Microbiology Research Pub Date : 2023-08-31 DOI: 10.5897/ajmr2023.9695

Stephan Nascente Adriano, Zainab Temitope Ishola, C. Marta, Ricardo Cabral Cruz Dennis

{"title":"Beneficial microorganisms as affecting root development of upland rice","authors":"Stephan Nascente Adriano, Zainab Temitope Ishola, C. Marta, Ricardo Cabral Cruz Dennis","doi":"10.5897/ajmr2023.9695","DOIUrl":"https://doi.org/10.5897/ajmr2023.9695","url":null,"abstract":"Multifunctional microorganisms can significantly affect root and shoot development of upland rice seedling that could provide an increase in the crop grain yield. The objective of this study was to determine the effect of single and combined microorganism on the root and shoot development of upland rice seedlings. The experiment was arranged in a completely randomized design with treatments consisting of the upland rice seeds treated with single and combined multifunctional microorganisms (M01 ( Serratia marcescens ) , M02 ( Bacillus toyonensis ), M03 ( Phanerochaete australis) , M04 ( Trichoderma koningiopsis ), M05 ( Azospirillum brasilense ), M06 ( Azospirillum species), M07 ( Bacillus species), M08 to M28 (combination of these microorganisms) and M29 (control – no microorganism). S. marcescens with B. toyonensis led to the greatest increase (296%) in root length relative to the control. B. toyonensis with A. brasilense greatly increased root surface area by 209% in comparison to the control. An increased root diameter by 36% was recorded for upland rice inoculated with A. brasilense with Bacillus spp. in relation to the control. P. australis with Bacillus spp. greatly increased root volume (47%) in comparison to the control. It can be concluded that multifunctional microorganisms enhanced root length, root surface area, root diameter and volume, and provided better root development","PeriodicalId":7617,"journal":{"name":"African Journal of Microbiology Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41657964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of bacterial biocontrol agents for the control of Fusarium oxysporum f.sp. Lycopersici (Fusarium wilt) in tomatoes 细菌生物防治剂在番茄枯萎病防治中的应用

African Journal of Microbiology Research Pub Date : 2023-07-31 DOI: 10.5897/ajmr2023.9700

Muigai Monicah, Odiwuor Odhiambo Nixon, Kiilu Muli Joshua, Mugweru Julius, M. Romano

{"title":"Use of bacterial biocontrol agents for the control of Fusarium oxysporum f.sp. Lycopersici (Fusarium wilt) in tomatoes","authors":"Muigai Monicah, Odiwuor Odhiambo Nixon, Kiilu Muli Joshua, Mugweru Julius, M. Romano","doi":"10.5897/ajmr2023.9700","DOIUrl":"https://doi.org/10.5897/ajmr2023.9700","url":null,"abstract":"Fusarium oxysporum f.sp Lycopersici (Fusarium wilt) is a serious plant pathogen that can cause yield losses >80% in tomatoes. The disease is controlled mainly by use of synthetic pesticides, which may be harmful to both humans and the environment. In this study, the potential use of antagonistic bacteria was reported for the control of fusarium wilt. First, we isolated and characterized fungi from tomato plants with wilt symptoms. Analysis of the ITS gene indicated fungi from the genus Fusarium, Alternaria, Plectosphaerella , Aspergillus , Gibellulopsis , Trichoderma , Papiliotrema , Rhodotorula , Mucor , Ustilago , Sporothrix and Cumuliphoma . 20 bacterial isolates were then screened from soils collected around the tomato plants for antagonistic activity against F.oxysporum using soft agar overlay method. Bacterial isolates showing inhibition zone diameters >3mm and consistent in reducing mycelial growth of the pathogen were further characterized and subsequently used for field experiments which were conducted during the short rain season in 2021 and 2022. The isolates grew at an optimum salt concentration of 5 - 10 % (w/v), pH range of 5 - 8 and a temperature of 30°C. Phylogenetically, they were affiliated to Bacillus subtilis , Paenibacillus polymyxa , Brevibacillus laterosporus , Bacillus velezensis , Bacillus amyloliquefaciens and Paenibacillus poriae whereas one of the isolates was identified as Myroides odoratimimus . Results from the field experiments showed that all selected strains significantly reduced average disease incidence (mean ± SE) for both years on day 14 (14.4% ± 3.49), day 28 (15.9% ± 3.44) and day 42 (15.2% ± 2.825) respectively. Therefore, these isolates are good candidates for the development of effective biological control programs against F. oxysporum f.sp Lycopersici affecting tomatoes.","PeriodicalId":7617,"journal":{"name":"African Journal of Microbiology Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49244127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence of Bartonella spp. in rodent and shrew species trapped in Kigoma and Morogoro Regions, Tanzania: A public health concern 坦桑尼亚Kigoma和Morogoro地区啮齿动物和鼩属中巴尔托内拉属的流行率：一个公共卫生问题

African Journal of Microbiology Research Pub Date : 2023-07-31 DOI: 10.5897/ajmr2023.9697

G. M. Ginethon, S. Abdul, W. M. Apia, H. Rhodes, S. Robert, V. G. K. Erick, L. Ladslaus

引用次数: 0

Cross-site comparison of coastal bacterial occurrences and diversity at selected sites along the North Atlantic Ocean in Monrovia, Liberia 利比里亚蒙罗维亚北大西洋沿岸选定地点沿海细菌发生率和多样性的跨地点比较

African Journal of Microbiology Research Pub Date : 2023-06-30 DOI: 10.5897/ajmr2023.9690

A. O. Ola

引用次数: 0

Effect of Piper nigrum, Thymus vulgaris and Syzigiuim aromaticum essential oils on the microbiological and sensory quality of Pork sausages during preservation 胡椒、百里香和香茅精油对猪肉香肠保鲜过程中微生物和感官质量的影响

African Journal of Microbiology Research Pub Date : 2023-05-31 DOI: 10.5897/ajmr2023.9687

R. Tchikoua, Foka Desoeuvres Fogang, Kamdem Sylvain Leroy Sado, Ngang Jean-Justin Essia

{"title":"Effect of Piper nigrum, Thymus vulgaris and Syzigiuim aromaticum essential oils on the microbiological and sensory quality of Pork sausages during preservation","authors":"R. Tchikoua, Foka Desoeuvres Fogang, Kamdem Sylvain Leroy Sado, Ngang Jean-Justin Essia","doi":"10.5897/ajmr2023.9687","DOIUrl":"https://doi.org/10.5897/ajmr2023.9687","url":null,"abstract":"The use of essentials oils (EOs) as alternative of nitrites and nitrates in sausages will be proposed in this study. For this purpose, the minimal inhibitory concentration (MIC) of white Piper nigrum of Penja , Thymus vulgaris and Syzigiuim aromaticum EOs were determined in vitro against Escherichia coli ATCC25922, Salmonella enteritidis 155A and Staphylococcus aureus NCTC10652. It follows from this study that, T. vulgaris EO was active on E. coli ATCC25922, S. aureus NCTC10652 and S. enteritidis 155A with MICs of 312.5, 625 and 1250 ppm, respectively. As for S. aromaticum EO, it reduced the same germs with MICs of 1250, 2500 and 5000 ppm, respectively. The combination of MICs of 1250 ( T. vulgaris ) and 5000 ppm ( S. aromaticum ) was selected (CMICR) for its bactericidal effect on 03 pathogens. The CMICR totally reduced E. coli ATCC25922 and S. enteritidis 155A after 3 days of storage. The sensory analysis shows that SAUS 324 and SAUS 589 produced with white P. nigrum of Penja were appreciated by the panelists. The combination of CMICR and white P. nigrum of Penja can be considered as an alternative to chemical preservatives to limit the growth of bacteria and improve the sensory characteristics of sausages.","PeriodicalId":7617,"journal":{"name":"African Journal of Microbiology Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46554657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

16S rRNA gene sequence analysis of the microbial community on microplastic samples from the North Atlantic and Great Pacific Garbage Patches 北大西洋和大太平洋垃圾带微塑料样品微生物群落16S rRNA基因序列分析

African Journal of Microbiology Research Pub Date : 2023-05-31 DOI: 10.5897/ajmr2022.9682

Tora Dkawlma, Hentschel Ute, Lips Stefan, Schmitt-Jansen Mechthild, Borchert Erik

引用次数: 0

Prevalence of rotavirus group A and associated genotypes detected in calves in Southern Highlands and Eastern Tanzania 在南部高地和坦桑尼亚东部小牛中检测到的轮状病毒A组和相关基因型的患病率

African Journal of Microbiology Research Pub Date : 2023-05-31 DOI: 10.5897/ajmr2022.9667

Jaili Malakalinga Joseph, Misinzo Gerald, Mutani Msalya George, John Shayo Mariana, Reuben Kazwala Rudovick

引用次数: 0

Molecular characterization of heavy metal resistant Proteus species 重金属抗性变形杆菌的分子特征

African Journal of Microbiology Research Pub Date : 2023-04-30 DOI: 10.5897/ajmr2022.9671

Adebo A., U. E., O. i

引用次数: 0