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Articles 1 - 8 of 8
Full-Text Articles in Microbiology
Assessment Of Antimicrobial Competence Of Epiphytes And Endophytes From Osmium Basilicum And Trigonella Foenum Graecum, Iram Asim, Atia Iqbal, Muhammad Ikrama Tanveer
Assessment Of Antimicrobial Competence Of Epiphytes And Endophytes From Osmium Basilicum And Trigonella Foenum Graecum, Iram Asim, Atia Iqbal, Muhammad Ikrama Tanveer
Journal of Bioresource Management
Plant-associated bacteria are an unexplored group of microorganisms that has enormous potential. These bacteria are the source of finding new antimicrobial substances. The present study aimed to isolate and characterize the epiphytes and endophytes from Osmium basilicum and Trigonella foenum graecum plants and to determine their antimicrobial potential against pathogenic bacteria from Nishtar Hospital Multan, Pakistan. The sum of 18 stems and roots along leaf specimens were assembled as of the plant's Osmium basilicum plus Trigonella foenum graecum as of the distinct locales of the Multan city. Overall 73 bacterial strains were isolated and their colony morphology, gram staining, spore …
Nitrogen Availability In Dune Systems And Its Effect On Root Fungal Endophyte Communities., Haley E. Sage
Nitrogen Availability In Dune Systems And Its Effect On Root Fungal Endophyte Communities., Haley E. Sage
College of Arts & Sciences Senior Honors Theses
As global change persists, changes in resource availability can influence plant-microbe interactions. To understand how resource availability can influence these interactions and species diversity, I focused this research on how varying nitrogen (N) levels affect root endophyte communities in the plant species Ammophila breviligulata, an ecosystem engineer in the dune system. I analyzed the relationship between nitrogen addition and microbial community composition across 60 plots treated with three nitrogen addition levels (control, low, and high) in a long-term experimental field site in the Lake Michigan dunes. I identified Ammophila breviligulata's root endophyte community after creating a culture collection and …
Utilizing Rhizospheric And Bacterial Endophytes For Use As Potential Bio-Fertilizers For Sustainable Agricultural Production, Vincent Peta
Utilizing Rhizospheric And Bacterial Endophytes For Use As Potential Bio-Fertilizers For Sustainable Agricultural Production, Vincent Peta
Electronic Theses and Dissertations
Brassica carinata crop production offers an exciting alternative approach to the energy crisis when looking at novel ways to power our motor vehicles. Bacterial endophytes, while residing in host-plant tissues, offer a wide array of plant growth promotion benefits such as nitrogen fixation to impart nitrogen (N) nutrition, phosphate (P) solubilization to make soil-bound phosphate more mobile in soil for plant uptake, can suppress pathogenic microbes such as fungus and produce plant growth hormones to offset stress incurred by the plant. Previous literature has shown that there is large interest in studying endophytes from economically important crops such as wheat, …
Exploring The Potential Of Endophytes And Medicinal Plants As Sources Of Antimicrobials To Control Citrus Greening, Jessica Dominguez
Exploring The Potential Of Endophytes And Medicinal Plants As Sources Of Antimicrobials To Control Citrus Greening, Jessica Dominguez
FIU Electronic Theses and Dissertations
Citrus greening is an economically disastrous bacterial disease that infects all species of citrus, and currently has no cure. It is caused by Candidatus Liberibacter asiaticus (CLas), an unculturable phloem-limited bacteria vectored by the sap-sucking insect Diaphorina citri. Citrus greening has spread to every citrus-producing county in Florida; thus, there is a crucial need to develop environmentally safe treatments to reduce or eliminate CLas. It was hypothesized that endophytic microorganisms isolated from survivor citrus trees would show antagonistic activity against CLas; also, that plant extracts with known antimicrobial properties could suppress CLas. Oregano, thyme and turmeric extracts in the …
Phaeophleospora Vochysiae Savi & Glienke Sp. Nov. Isolated From Vochysia Divergens Found In The Pantanal, Brazil, Produces Bioactive Secondary Metabolites, Daiani C. Savi, Khaled A. Shaaban, Francielly M. W. Gos, Larissa V. Ponomareva, Jon S. Thorson, Chirlei Glienke, Jürgen Rohr
Phaeophleospora Vochysiae Savi & Glienke Sp. Nov. Isolated From Vochysia Divergens Found In The Pantanal, Brazil, Produces Bioactive Secondary Metabolites, Daiani C. Savi, Khaled A. Shaaban, Francielly M. W. Gos, Larissa V. Ponomareva, Jon S. Thorson, Chirlei Glienke, Jürgen Rohr
Pharmaceutical Sciences Faculty Publications
Microorganisms associated with plants are highly diverse and can produce a large number of secondary metabolites, with antimicrobial, anti-parasitic and cytotoxic activities. We are particularly interested in exploring endophytes from medicinal plants found in the Pantanal, a unique and widely unexplored wetland in Brazil. In a bio-prospecting study, strains LGMF1213 and LGMF1215 were isolated as endophytes from Vochysia divergens, and by morphological and molecular phylogenetic analyses were characterized as Phaeophleospora vochysiae sp. nov. The chemical assessment of this species reveals three major compounds with high biological activity, cercoscosporin (1), isocercosporin (2) and the new compound 3-(sec-butyl)-6-ethyl-4,5-dihydroxy-2-methoxy-6-methylcyclohex-2-enone (3). …
Antibacterial Activity Of Endophytic Actinomycetes Isolated From The Medicinal Plant Vochysia Divergens (Pantanal, Brazil), Francielly M. W. Gos, Daiani C. Savi, Khaled A. Shaaban, Jon S. Thorson, Rodrigo Aluizio, Yvelise M. Possiede, Jürgen Rohr, Chirlei Glienke
Antibacterial Activity Of Endophytic Actinomycetes Isolated From The Medicinal Plant Vochysia Divergens (Pantanal, Brazil), Francielly M. W. Gos, Daiani C. Savi, Khaled A. Shaaban, Jon S. Thorson, Rodrigo Aluizio, Yvelise M. Possiede, Jürgen Rohr, Chirlei Glienke
Pharmaceutical Sciences Faculty Publications
Endophytic actinomycetes from medicinal plants produce a wide diversity of secondary metabolites (SM). However, to date, the knowledge about endophytes from Brazil remains scarce. Thus, we analyzed the antimicrobial potential of 10 actinomycetes isolated from the medicinal plant Vochysia divergens located in the Pantanal sul-mato-grossense, an unexplored wetland in Brazil. Strains were classified as belonging to the Aeromicrobium, Actinomadura, Microbacterium, Microbispora, Micrococcus, Sphaerisporangium, Streptomyces, and Williamsia genera, through morphological and 16S rRNA phylogenetic analyzes. A susceptibility analysis demonstrated that the strains were largely resistant to the antibiotics oxacillin and nalidixic acid. Additionally, different culture media (SG and R5A), and …
Isolation Of Possible Biocontrol Endophytic Bacteria From Solanum Tuberosum Effective Against Streptomyces Scabies., Annie Flatley, Luke Ogle, Adam Noel, Erica Fraley, Alaxandra Goodman, Donna Becker
Isolation Of Possible Biocontrol Endophytic Bacteria From Solanum Tuberosum Effective Against Streptomyces Scabies., Annie Flatley, Luke Ogle, Adam Noel, Erica Fraley, Alaxandra Goodman, Donna Becker
Poster Sessions
Use of biological control offers a cost effective and environmentally safe method for controlling plant diseases. Biocontrol agents that can colonize roots and live endophytically within plant tissue should allow for effective disease control. The goal of this research was to develop protocols to isolate putative Streptomyces species from potato stem and tuber tissue due to their ability to produce inhibitory compounds which could potentially reduce diseases caused by Streptomyces scabies. Endophyte isolation from Solanum tuberosum (potato) plants (stem and tuber tissues) that were grown in a biocontrol field trial were the focus of this study. Several surface …
Use Of Two Pathogen-Inhibiting Streptomyces Isolates For Biocontrol Of Scab Disease Of Raphanus Sativus, Tyler Park, Nichole Klingler, Adam Noel, Luke Ogle, Annie Flatley, Donna Becker
Use Of Two Pathogen-Inhibiting Streptomyces Isolates For Biocontrol Of Scab Disease Of Raphanus Sativus, Tyler Park, Nichole Klingler, Adam Noel, Luke Ogle, Annie Flatley, Donna Becker
Poster Sessions
Streptomyces species are ubiquitous soil bacteria that are promising as biological control agents due to their prolific antibiotic production that can inhibit soil-borne plant pathogens. This includes Streptomyces scabies, which causes scab disease on underground storage organs. The goal of this research was to test two Streptomyces isolates that have known inhibitory and biocontrol abilities against S. scabies in a potato (Solanum tuberosum) agricultural system for their effectiveness in biocontrol of this pathogen in a radish (Raphanus sativus) greenhouse assay. Pathogenic S. scabies were mixed into either pasteurized or unpasteurized soil prior to planting. Radish …