Microbiology: Bacteria and Viruses

Bio 254

Spring 2005

 

Instructors:

 
Dr. Christine White-Ziegler

Office:

Sabin-Reed 457

Office phone:

585-3815

E-mail:

cwhitezi@science.smith.edu

Office hours:

The best times to contact me are immediately after lecture/lab on Monday or Wednesday.  If these times conflict with your schedule, please contact me for an appointment.

 

Dr. Esteban Monserrate

Office:

Sabin-Reed 435

Office phone:

585-3851

E-mail:

emonserr@science.smith.edu

Office hours:

By appointment or stop by my office.

 

Lecture class:

Course credit:

3 credits

Class times:

MWF 10:00- 10:50 am

Th 4:00-4:50 pm

 

Location:

McConnell 404

Prerequisites:

CHM 111, BIO 111 or equivalent

Co-requisite:

BIO 255 (Microbiology: Bacteria and Viruses Laboratory) must be taken concurrently

 

Course description and objectives:

This course will focus on the biology of bacteria including prokaryotic cell structure, diversity, metabolism, growth, and genetics.  The different environments in which bacteria are found, and the role bacteria play in these environments, is also addressed.  Additionally, an introduction to the biology of viruses will be included.  A particular emphasis is placed on medical microbiology in which the role of bacteria and viruses in disease is discussed.  Special topics covered in this class include antibiotic resistance, evolution of pathogens, virulence factors, emerging infectious diseases, gene regulation, and bacteria in unusual or extreme environments.

 

In addition to learning important information about the biology of a variety of microorganisms, students will have the opportunity to write a paper on a topic of their interest.  Through this assignment, students will experience the research process from the concept stage to a culminating final paper and oral presentation on the topic, giving students the opportunity to practice and improve their written and oral communication skills.  The exchange of information learned by individual students will be facilitated oral presentations and reading of each otherÕs papers.  Also, students will orally present "Microbial Moments" that will allow a more casual exchange of information and discussion of specific microorganisms.

 

Appointments/contacting us: 

As stated above, we can meet with you for appointments.  When you want to set an appointment with either one of us, please be prepared with a few time slots you are available on those days so we can find a time that matches our schedules.  Feel free to contact us in class, by email, or by phone.  Do, however, make sure that any important information you need to get to us (e.g. appointment times, paper topics, etc) is written down on something and handed to one of us!  We promise you that we will promptly forget anything simply told to us.  Also, Dr. White-Ziegler does not check email on the weekend, in the evening, and (sometimes) not before class, so plan on a lag time in response to emails sent at these times.

 

Lecture text:

The text for the class is Microbiology by Prescott, Harley, and Klein, 6th edition.  It will serve as the primary reference for the course.  Additional readings may be assigned and will be available on reserve in the Young Science Library.  An extremely helpful resource for the writing assignment in this class is A Short Guide to Writing About Biology by Jan Pechnik, 3rd edition.  It is on reserve for this course at the library. 

 

Evaluation:

 

Assignment

Points

Microbial Moments (2 x 25 points)

50

Abstract

30

Exam 1

100

Exam 2

100

"Near perfect" draft of paper/writing conference

25

Final paper

100

Presentation of paper

50

Exam 3

100

Total

555

 

Microbial moments

To introduce specific microbes in the class, each student will present 2 "Microbial Moments" during the course of the semester.  This will be a short (approximately 3-5 minute talk) about a specific bacterium or virus that will include such information as the unique characteristics of the bacterial genus (or species) and it role in its environment.  A handout will be provided as to what information should be covered in these moments.  Each class meeting a different person will present.  Microbial moments will be started in February.

 

MicrobialMoment Example

Microbial Moment Form

Microbial Moments Schedule

 

Exams

Exam 1 and Exam 2 will be self-scheduled exams.  In a week in which an exam is given, the exams will be available starting at 1:00 p.m. on the first day until library closing time on the last day.  Students can obtain the test in the Young Science Library at the desk.  The exam must be completed within two hours and returned to the Science Library desk.  Please plan to allocate the full two hours provided to complete the exam.  If students have questions pertaining to the exam content, these questions must be asked before the test is made available.  Clarifications during the exam could be asked if you can reach either Dr. White-Ziegler or Dr. Monserrate.  Therefore, we recommend you plan accordingly.

 

Exam 3 will cover the content of the last third of the course, primarily student papers.  All of the student papersÕ will be placed on reserve in the Young Science Library.  Each student will be responsible for writing a test question and answer on her individual paper that will be used in formulating the exam.  Exam 3 will be on reserve at Science Library desk during final exam week.  Material covered in Microbial Moments will be tested on exams.

 

Sample Exam Questions

 

Paper and oral presentation

Each student will write a paper on a subject of interest within the field of microbiology (bacteriology or virology).  Students may suggest their own topic or choose one from a list of suggested topics the instructor will provide.  Each student needs to discuss with the instructor and get approval of her topic by the date stated in the lecture outline.  An abstract, approximately 250 words, must be written for the paper to delineate the focus and scope of the paper.  At least five references should be included with the abstract, three of which should be primary journal articles.  The abstract is due on the date stated in the lecture outline, but can be submitted earlier.  The paper, limited to 8 pages, should be typed, double-spaced, and include a list of references.  The paper should be focused to a very specific topic.  The paper should give the latest information available on the subject and thus should be written based primarily on journal articles from the past three years.

 

Each student will hand in a "near perfect" draft a week prior to when the student presents.  A "near perfect" draft should be as complete a paper as the student can write.  Any papers submitted later than this time will be penalized.  The student is then responsible for scheduling a writing conference with the instructor, prior to their presentation, in which the instructor will offer comments for the writer on ways to improve the paper.  Peer review is highly encouraged so students should feel free to exchange drafts and get comments from each other.  The final draft of the paper is due one week after the student's presentation.

 

Researching a Paper Topic

Journals Related to Microbiology and Immunology

Suggested Paper Topics

Writing an Abstract for Your Paper

Abstract Evaluation Form-Hand this in with your paper!

Citing References in Your Paper

Paper Presentation Schedule

 

Presentations will be held between mid-March and the end of classes; a specific schedule will be determined once class size has stabilized.  Each student will give a 10-15 minute presentation of her paper, followed by 5 minutes for questions and discussion.  The presentations should be well prepared, concise, and include any visual aids that would enhance the presentation.  The presentation time will not be enough to address every point made in the paper.  Therefore, students will want to present the most interesting and important points.  The purpose of the presentation is to give students a chance to speak in front of others and promote an exchange of information and ideas.

 

Tips for Giving a Great Talk

 

Guest lectures

On Thursdays in the beginning of the semester, various professors from Smith College/Five Colleges whose research involves prokaryotic and eukaryotic microorganisms will give guest lectures about their work.

 

EID presentations

Students from the seminar course BIO 360 Emerging Infectious Diseases "Biotechnology and World Health" will be giving guest talks to this class on their research on the top pathogens of concern and ways in which biotechnology can be used to diagnose, cure, or prevent transmission of these pathogens.

 

Colloquia/Panel talks:

A colloquium will be given on Monday, March 7 at 4:30 pm in McConnell B05 by Dr. Nick Mantis, Division of Infectious Disease, Wadsworth Center, NY State Department of Health.  Extra credit will be given for attendance at this talk along with a brief one-page summary of the talks.

 

Web page:

This course has a web page which is a source for specific and general information.  More specific instructions regarding the assignments for the class are found here.  Useful links to immunology and microbiology-related sites, literature reference databases, and internship sites can be accessed through this page.

 

www.science.smith.edu/departments/Biology/cwhitezi/default.html

 

Late policy:

Each assignment is due on the date and at the time stated in the syllabus. An assignment handed in late will be penalized 5 points for each day it is late.  Weekend days will be included in this penalty.

 

 


Outline of course:

This outline should be viewed as a flowchart of topics in the basic order that they will be covered.  It is subject to change.

 

Week

Lecture

Chapter

M 1/24

Introduction

 

W 1/26

History of microbiology

1

R 1/29

TBA

 

F 1/28

Bacterial Diversity I: Gram Ð and Proteobacteria

21-22

 

 

 

M 1/31

Bacterial Diversity II: Gram +, Low-vs-High G+C

23-24

W 2/2

Microscopy: Visualizing bacteria and viruses

2

R 2/3

Research in Microbiology Guest Lecture

 

F 2/4

Prokaryotic cell structure and function

3

 

 

 

M 2/7

Prokaryotic cell wall: Gram + versus Gram -

 

W 2/9*

Taxonomic classification of bacteria

19, 15

R 2/10

Research in Microbiology Guest Lecture

 

F 2/11

Archaea

20

 

 

 

 

*Approval of PAPER topic due by 10 am on 2/9

 

 

 

 

M 2/14

Bacterial nutrition and culture media

5

W 2/16

Measurement of bacterial growth

6

R 2/17

Research in Microbiology Guest Lecture

 

F 2/18*

Bacterial respiration

9

 

 

 

 

*Abstract of PAPER due at 10 am on 2/18

 

 

 

 

M 2/21

Metabolic Diversity I: Fermentation

 

W 2/23

NO CLASS- Rally Day!

 

R 2/24*

Research in Microbiology Guest Lecture

 

F 2/25

Metabolic Diversity II: Photosynthesis and Chemosynthesis

10

 

 

 

 

*Self schedule EXAM 1 between 2/24-3/3

 

 

 

 

M 2/28*

Bacteria and their role in the environment

28-30

W 3/2

Biogeochemical cycles and bioremediation

 

R 3/3

Research in Microbiology Guest Lecture

 

F 3/4

Bacterial DNA replication/transcription

11

 

 

 


 

M 3/7*

Bacterial protein translation

 

W 3/9

Gene/protein regulation I

12

R 3/10

TBA

 

F 3/11

Gene/protein regulation II

 

 

 

 

 

*Talk by Dr. Nicholas Mantis, McC B05, Monday, 4:30 pm ÐEXTRA CREDIT!

 

 

 

 

M-F 3/14- 3/18

NO CLASS- Spring Break!

 

 

 

 

M 3/21

Genetic mutations

11

W 3/23

DNA repair

 

R 3/24

Student presentations

 

F 3/25

Gene transfer I: Transformation, Conjugation

13

 

 

 

M 3/28

Gene transfer II: Transduction, Transposons

 

W 3/30

Antibiotics

35

R 3/31

Student presentations

 

F 4/1

Antibiotic resistance

 

 

 

 

M 4/4

Viral Structure, function and life cycle

16

W 4/6*

Propagation of viruses: Lytic versus lysogenic phages

17

R 4/7

Student presentations

 

F 4/8

Eukaryotic viruses

18

 

 

 

 

*Self schedule EXAM 2 between 4/5-4/13

 

 

 

 

M 4/11

Viruses and disease

38

W 4/13

Cancer and HIV

 

R 4/14

Student presentations

 

F 4/15

Special topics

 

 

 

 

M 4/18

Special topics

 

W 4/20

EID class presentations

 

R 4/21

Student presentations

 

F 4/22

EID class presentations

 

 

 

 

M 4/25

EID class presentations

 

W 4/27

EID class presentations

 

R 4/28

Student presentations

 

F 4/29

Last day of classes

 

 

 

 

 

*EXAM 3 due 5/5 by 5 pm

 

 

LECTURES IN PDF FORMAT

1. History of Microbiology

2. Bacterial Diversity

3. White-Ziegler Research Talk

4. Prokaryotic Structure/Function

5. Monserrate Research Talk

6.Classification and Molecular Methods

7. Archaea

8. Microscopy

9. Microbial growth

10.Microbial physiologyI

11. Microbial physiologyII

12. Bacteria and the environment

13. Replication, transcription, and translation

14. Gene and protein regulation

15. Gene transfer

16. Virology

17. Dorit Research Talk (Antibiotic Resistance)