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BIOL 407

BIOL 407: Microbial Ecology

Prerequisites: A grade of "C" or better in either of the following sequences: BIOL 132 and BIOL 231; or BIOL 111, BIOL 112, BIOL 230 or BIOL 334 and CHEM 112. Students not majoring in Biology may take the course with permission of the instructor.

Credit hours (4)

Three hours lecture; three hours laboratory   
BIOL 407 emphasizes interactions between microbial populations and their environments. Topics will encompass a broad range of eco system level interactions including, but not limited to, global nutrient cycling, the human microbiome, and the importance of microbial ecosystems in industrial, environmental, and medical applications. Presentation, writing, and discussion of primary literature will be emphasized. Laboratory exercises will introduce aseptic and culturing techniques and will include physiological and molecular investigations of microbial ecosystems, with an emphasis on laboratory technique and fieldwork.  All students with interests in medical, industrial, or environmental fields will benefit from this course.


Detailed Description of Course

May include the following though areas of emphasis changes based on faculty expertise are common.

  • Introduction to microbial ecology
    • History
    • Scope
    • Relationship to macroecology
  • Microbial morphology and diversity of microoganisms
    • Bacteria
    • Archaea
    • Viruses
    • Fungi
    • Protists
    • Staining and isolation techniques
  • Microbial physiology and cellular associations
    • Environmental factors influencing growth
    • Genetics
    • Biochemistry
    • Culturing techniques
  • Explorations of microbial habitats
    • Aquatic
    • Soil
    • Rock and subsurface
    • Atmospheric
    • Boundary interactions
  • Tools of microbial ecology:  design, execution, collection, analysis
    • Aseptic technique
    • Dilution series
    • Physiological assays
    • Molecular techniques
    • Microscopy
    • Field and laboratory techniques
  • Interactions
    • Microbe-microbe
    • Microbe-plant
    • Microbe-animal
  • Ecology of microbial ecosystems
    • Community ecology
    • Population ecology
  • Microbial contributions
    • Biogeochemical cycles
    • Biomineralization and weathering
    • Decomposition
  • Bioremediation
    • Microbial solutions
    • Genetic engineering
    • Process design and implementation


Detailed Description of Conduct of Course


Three hours lecture; three hours laboratory.

This course investigates the distribution and abundance of microbial species, and emphasizes interactions between microbial populations and their respective environments. Inquiry may include interactions between the fields of biology, chemistry, and physics and will encompass a broad range of ecosystem level interactions including but not limited to global nutrient cycling, the human microbiome, and the importance of microcosms as they relate to industrial, environmental, and pathogenic systems. Emphasis in lecture will be placed on primary literature and student engagement through written and oral communication.

Laboratory exercises will include aseptic and culturing techniques and encompass physiological and molecular investigations of microbial ecosystems, with an emphasis on laboratory technique and fieldwork.  Projects may include but are not limited to student-driven and real-world research.

This course will include lecture and integrated field and laboratory experiences.  During lecture students will be introduced to topics through texts, primary and secondary literature, class and small group discussions and activities, student presentations, laboratory activities, and field trips.  In the laboratory students will be introduced to basic microbial techniques, may spend time in the field exploring microbial habitats, and will engage in student driven and real world research as much as is possible.  The scientific method will be thoroughly utilized in the laboratory.  Independent and group laboratory projects may be required and may include: a broad range of instruments and techniques, tracking of experimental progress using laboratory notebooks, and presentation of final results at the end of each semester in the style of scientific publications both oral and written.


Goals and Objectives of the Course

Having successfully completed this course the student will be able to:
    1) Describe major clades of microorganisms found in each of the three domains of life and explain their basic morphology and physiology
    2) Explain the influences of environmental factors on microbial physiology and evolution using basic principles of biochemistry and genetics
    3) Explain the ecology of microbial communities and populations in a variety of habitat types
    4) Describe governing characteristics of microbial interactions with other microorganisms, plants, and animals
    5) Recognize contributions of microorganisms to chemical processes of interests globally and economically
    6) Describe the concept of bioremediation and basic principles governing the application of microorganisms in bioremediation efforts
    7) Use and/or describe the use of a variety of laboratory, field, and data analysis techniques applicable to microbial ecology
    8) Read, evaluate, and communicate primary literature
    9) Conceptualize and design experiments to investigate microbial ecology in the field and laboratory with an emphasis on proper controls and preventing contamination
    10) Present experimental results in meaningful context


Assessment Measures

Assessment of student understanding and application of lecture and laboratory material may include but are not limited to written and oral presentations, participation and examination. Presentations may be evaluated by peers and professor. Other assessment measure may be used to evaluate understanding of content and skills as appropriate.


Other Course Information


None

 

Review and Approval

February 11, 2026
April 13, 2017
June 20, 2015
2012
March 18, 2005