PLP-311 (Theoretical) and 312 (Practical); Principles of Plant Pathology
Lecture Discussion Theoretical: Two 50-min lecture per week.
Practical: One 100- min exercise per week.
Number of credits: Theoretical-2 and Practical-1
Contact hours: 2 x 50 minutes for lecture (2 credits) and 1 x 100 minutes for laboratory exercise (1 credit) per week
Course Teacher Information:
Cell Phone: ……….. e-mail:
Office Hours: 09:00 AM to 5:00 PM daily
By the end of the course, students will be able to-
Knowledge and understanding
Describe the causes of plant diseases in general
Discuss pathogenicity process for economically important plant pathogens and understand how plant and pathogens interact in the environment.
Applying knowledge and understanding
Explain the interactions that occur among the plant, the environment, and biotic and abiotic agents during disease development
Identify and recognize symptoms and signs and formulate hypothesis about the etiology of disease
Diagnose and explain the management of key diseases
Identify the proper diagnostic technique and plan a strategy for disease management.
Evaluate critically the advantages and disadvantages of various plant protection strategies.
Improve their communication skills during discussions in the lectures and exercises.
This course is designed for undergraduate students in their fifth semester. In this course students will learn principles of plant pathology through lectures and demonstrations and exercises in laboratory. Lectures will include information concerning the history and importance of plant pathology, infection process, host defense mechanism, disease management strategies microorganism interactions and epidemiology and forecasting of plant diseases. In the hands-on laboratory period the student will learn laboratory skills, gain experience using the microscope, work with microorganisms, learn diagnostic skills, and be able to recognize plant diseases.
Lecture Schedule for theoretical class
|1||Plant Pathology: Introduction and History|
|2||Introduction to terminology related to Plant Pathology.|
|3||The disease triangle and disease tetrahedron.|
|4||Symptoms and Sign of plant diseases|
|6||Stages in Plant Disease Development|
|7||Stages in Plant Disease Development|
|8||Stages in Plant Disease Development|
|9||Dissemination and Survival pathogens|
|10||Toxins in plant disease development|
|11||Enzyme and plant growth regulator in plant disease development|
|12||Defense mechanism of Plant against pathogen|
|13||Effect of pathogenesis on different physiological process of the host|
|14||Mid term Exam|
|15||Effect of environmental elements on plant disease development|
|17||Principles of plant disease management|
|18||Principles of plant disease management|
|19||Methods of plant disease management|
|20||Biological control of plant disease|
|21||Cultural control of plant disease|
|22||Chemical control of plant disease|
|23||Chemical control of plant disease|
|24||Disease resistance and therapy|
|25||Regulatory and Physical control of plant disease|
|26||Integrated Disease Management (IDM)|
|27||Regulatory and Physical|
|29||Plant Disease Epidemiology: Elements of epiphytotic and their interaction in developing epiphytotic|
|30||Plant Disease Epidemiology: Modeling of plant disease epidemics .|
|31||Computer simulation of epidemics.|
|32||Recap/ Summary of the Course, Quiz/ Post Assessment|
Note: The schedule may be modified during the semester. You will be notified in lectures
and/or by email of any substantial changes to the schedule above.
Schedule for Laboratory exercise
|1-5||Study of symtomatology|
|6||Study of schematic drawings of different structures of plant pathogens|
|7-8||Study of plant disease diagnosis process|
|9-10||Study on some non-infectious diseases of plant.|
|11-16||Pathogenecity test (Koch’s postulates)|
In the lectures the topics will be dealt with by the lecturer supported by Power Point Presentations. The Presentations will be available in the course reserve collection database of the Faculty one day after each lecture. Additional material will be provided by the lecturer.
2 class hours will be used for field exercises, 2 for practical demonstrations and visits concerning the topics agricultural meteorology and distribution techniques of pesticides, 2 for diagnostic methods in the lab. The remaining exercise hours will be used in the seminar room, in order to enable the students to find in the various data bases active ingredients of pesticides, pesticides, labels, maximum residue levels and safety sheets.
Class Attendance: 10 Marks; Mid Term Exam. 20 Marks; Final exam: 70 Marks
|Numerical Grade||Letter Grade||Grade Point|
|80 % and above||A+||4.00|
|75 % Less than 80 %||A||3.75|
|70 % Less than 75 %||A-||3.50|
|65 % Less than 70 %||B+||3.25|
|60 % Less than 65 %||B||3.00|
|55 % Less than 60 %||B-||2.75|
|50 % Less than 55 %||C+||2.50|
|45 % Less than 50 %||C||2.25|
|40 % Less than 45 %||D||2.00|
|Less than 40 %||F||0.00|
Your class attendance is strongly encouraged. By attending class you will be able to ask questions and assess your understanding of the topics we be discussed. We will also have in-class activities designed to help you learn the material and apply it to real-life situations. If you must miss class due to illness, family emergency you should let me know ahead of time, if possible, and you will only be able to make up missed midterm exams and in-class assignments if you provide me with a written excuse documenting the situation.
Practical Note Book: Reports on laboratory exercise are to be completed for each laboratory session and are to be handed in at the end of the laboratory period. The worksheet will be evaluated, and handed back to you in the next laboratory period. If you miss a laboratory period you will not get credit for that laboratory.
Mid-term Examination: The Mid-Term exam is worth 20% of your final mark. It will take place during the regular 50 minute lecture period as per schedule announced by Dean Office. The Mid-Term exam will cover all material (including guest lectures) up to and including the 18 October lecture.
Practical Laboratory Examination: A laboratory examination will be held during the lab period on date announced by course teacher. This examination may utilize diseased plant specimens, microscope slides, photographs of pathogens and diseases, PowerPoint presentations, and/or other materials. Questions may include material from both laboratories and lectures. This laboratory exam is valued at 10% of your final mark.
Use of Personal Electronic Devices in the Classroom: The use of cell phones is allowed in the classroom for certain uses.Ringing cell phones will not be tolerated during lecture and practical sessions; Cell phones must be in silent mode. Students are not permitted to record any part of a class/lab/other session unless explicitly granted permission by the instructor.
Students with Disabilities: Patuakhali Science and Technology University is committed to assuring that all educational activities are free from discrimination and harassment based on disability status. The Department of Plant Pathology is committed to providing all students equal access to learning opportunities. If you need different accommodations that what is provided please let the instructor know as soon as possible. We are happy to work with you to provide and/or arrange reasonable accommodations.
Text Books & Reference:
Plant Pathology 5th edition by G. N. Agrios
Attendance = 10%,
Mid-term exam. = 20% and
Final exam 70%
Course Expectations: You are expected to attend all lectures and laboratory sessions, be attentive during class, ask questions if you do not understand something, and participate in class activities and discussions. If you have questions or problems with the course please talk to one of your instructors as soon as possible. If at any time during the course you feel we are not covering information you would like to cover or if we are going too fast over material please let your instructor know. This will not affect your grade.
Students are expected to take exams at the times scheduled in the syllabus and or arranged by the instructor and the final exam at the time shown in the University of Minnesota calendar. Possible exceptions include serious illness, family emergencies or a legitimate conflict with recognized University activities. If you are unable to take an exam at the scheduled time please contact the instructor as soon as possible to make other arrangements.
If you miss an exam; Contact your instructor immediately. Students missing exams for valid (e.g., medical/bereavement) reasons must notify the instructor in advance, where possible and provide documentation if requested. If a student is able to sit the exam within 48 hours of the original exam time they may arrange to do so without penalty. If a student is unable to sit an exam within 48 hours of the original exam time they will have their final exam weighted proportionally more. Students who miss an exam for a non-valid reason may request to take the exam within 48 hours of the original exam time, although they will have a 20% penalty deducted from their score. If a student is unable to sit an exam within 48 hours of the original exam time they will be assigned a score of zero for the exam.
This class will be partially “flipped” this year. This means that some of the lectures will be recorded and available to view online. Your instructor will let you know what other class session will be flipped as the semester progresses. For these flipped lecture sessions the expectation is that you view the recorded lecture material before coming to class. Typically during these flipped class periods we will be having class discussions based on assigned readings or other types of small group activities.
Projects: Two projects are required and will be worth 50 points each. The methods to be used in each project will be covered in class. Due dates of the projects are given in the lecture/lab schedule below. My policy regarding late work is to deduct 10% of the assigned points for each calendar day an assignment is late. Thus, if a project is turned in two days late, the highest possible grade that will be given is 80% or a “B”. Additional details about each assignment will be given later in the semester.
Project 1: (50 points) Collect and preserve six different specimens from the Basidiomycota. Three specimens should be identified to species; the remaining three should be identified to genus. Please, do not collect giant puffballs (they stink up the room). At least three different families must be represented in your collection. In addition to the book you purchase, others will be available in the lab to assist you in identification. Each specimen should be dried and accompanied by a complete description of the specimen and the substrate on which it was found. This project will give you practice hunting mushrooms and similar fungi and also allow you to become familiar with the literature and keys to their identification. Project 2: (50 points) Isolate and identify to order three pure cultures of fungi from different substrates. Included in the collection should be one zygomycete fungus. You will be required to turn in detailed drawings of the important characteristics, as well as a Petri plate with the living fungus. This project will help you learn sterile technique, how to isolate and handle fungi from nature, and how to discern important microscopic characteristics of fungi.
Presentation/Poster: Students will be required to give a poster/presentation at end of the semester on a topic related to Principles of Plant Pathology. Awards will be given for the best presentation. Topics for the poster/presentation should be exciting, cutting-edge, not boring and Wikipedia-like essays, and need to be approved by the instructor by stipulated time. Additional information on the presentation/poster will be provided later in the semester.