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Studies In Biocontrol: Enumeration, Characterization, And Screening Of Rhizobacteria

Raudales Banegas, Rosa Emilia
http://rave.ohiolink.edu/etdc/view?acc_num=osu1218207906

Abstract Details

2008, Master of Science, Ohio State University, Plant Pathology.
The search for alternatives to chemical pesticides in agriculture raises the need to study substitutes as biocontrol for plant disease management. Rhizobacteria may present a front line of defense for plants against pathogens against biotic and abiotic stresses. A SYBR-green real time quantitative PCR protocol for the detection and quantification phlD+ pseudomonads in the soil with a detection limit of log4 cells per gram of root was developed. Pseudomonas fluorescens Wood1R decreased acid-soil stress related symptoms in corn plants perhaps through alterations in foliar nutrient concentration. In a different study, Pseudomonas fluorescens genotypes A1, A2 and S2 reduced tomato bacterial spot. Finally, in vitro screening of growth inhibition against a broad spectrum of pathogens demonstrated the potential of eight Bacillus spp. isolates to reduce tomato diseases. This data suggest that more research on biocontrol can result in novel traits and isolates that can ultimately be integrated in plant disease management.
Brian B. McSpadden Gardener, PhD (Advisor)
Michael J. Boehm, PhD (Committee Member)
Anne E. Dorrance, PhD (Committee Member)
Laurence V. Madden, PhD (Committee Member)
99 p.
Agriculture; Plant Pathology
Biocontrol; DAPG-producers; rhizobacteria; Real-time PCR; phlD Pseudomonas; Bacillus; Acid Soil; Pseudomonas fluorescens

Recommended Citations

Citations

  • Raudales Banegas, R. E. (2008). Studies In Biocontrol: Enumeration, Characterization, And Screening Of Rhizobacteria [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1218207906

    APA Style (7th edition)

  • Raudales Banegas, Rosa. Studies In Biocontrol: Enumeration, Characterization, And Screening Of Rhizobacteria. 2008. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1218207906.

    MLA Style (8th edition)

  • Raudales Banegas, Rosa. "Studies In Biocontrol: Enumeration, Characterization, And Screening Of Rhizobacteria." Master's thesis, Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1218207906

    Chicago Manual of Style (17th edition)

osu1218207906
3,447
© 2008, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.