MYCOLOGY AND PLANT PATHOLOGY

Year	No.	Offer	Mode	Description			Cred. Pts
96	62314 	S1  	D 	MYCOLOGY & PLANT PATHOLOGY	1.00

Contents


STAFFING:

Examiner: F. MC KENZIE

PRE-REQUISITE(S)

62103


RATIONALE:

The first half of this unit introduces students to fungi as one of the most important plant pathogens. The second half of the unit deals with the principles of plant pathology, taking examples from fungal and other pathogens. These studies provide a useful facet of learning for applied plant biology students.


SYNOPSIS:

The lectures and practical sessions on classification provide a basis for identification of fungi through further reference to the readily available literature. The plant pathology section includes the concept of a plant disease, basic causes of disease, host defence systems and disease resistance, environmental effects on disease manifestation, and symptomatology and control of plant diseases.


OBJECTIVES:

On completion of this unit students will be able to:

  1. isolate and identify fungi and maintain them in pure cultures.
  2. demonstrate an understanding of the principles of plant pathology and the application of these principles in the control of plant disease.
  3. demonstrate skills in laboratory, field and glasshouse work related to mycology and plant pathology.

TOPICS:

 Description                                                    Weighting(%)
  1. THEORY 8.00 General Morphology of Fungi - cell, mycelium and tissue formation; dikaryon formation; functions of sexual and asexual spores, chlamydospores and sclerotia; nutrient requirements, nutrient absorption and water loss; outline of classification and life cycles

  2. Classification and Occurrence 42.00 - Plasmodiophoromycetes, Chytridiomycetes, and Oomycetes - distinguishing features of the classes, the orders Saprolegniales and Peronosporales, and the families of the Peronosporales; methods of dispersal; dormant spores - Zygomycetes - Mucorales and Entomophthorales; adaptation to substrate, spore dispersal - Ascomycetes - sub-classes and series; dormant structures in the life cycle - Deuteromycetes - distinguishing features of the form orders, and the families of the order Moniliales; the parasexual cycle; importance of the asexual spore in dispersal - Basidiomycetes - sub-classes and series; macrocyclic and microcyclic rust fungi;

  3. Introduction to Plant Pathology 8.00 - what is disease; symptoms; classification of diseases; etiology including summary of different types of causal agents

  4. Development of Disease 10.00 - disease cycle; how pathogens attack plants (mechanical and chemical weapons); effect of pathogen on physiology of host

  5. Disease Resistance 8.00 - the genetics of resistance - structural physiological and biochemical resistance mechanisms

  6. Case Studies of host-pathogen intereactions 8.00 - rust diseases of cereal crops - Agrobacterium tumefaciens: crown gall disease and plant transformation

  7. Effect of environment on development of 8.00 disease - consideration of temperature, moisture, wind, light, pH, host nutrition, development of epidemics, weather, and forecasting epidemics

  8. Control of Plant Diseases 8.00 - summary of different methods of control


TEXT and MATERIALS to be PURCHASED:

Alexopoulous, C. J. and Mims, C. W., "Introductory Mycology", 3rd
Edn, Wiley, 1979.


RECOMMENDED REFERENCE MATERIALS:

Agrios, G.N., "Plant Pathology", 3rd edn., Academic Press, 1988.

Ainsworth, G. C., Sparrow, F.K. and Sussman, A.S., eds, "The Fungi"
5 Vols, Academic Press, 1965-1973.

Arora, D.K. and Bharat R., Mukerji, K.G. and Knudsen, G.R. (ed),
"Soil and Plants", Volume 1, Marcel Dekker Inc, 1991.

C.M.I., "Plant Pathologist's Pocketbook", 2nd edn., Commonwealth
Agricultural Bureau, 1983.

Dickson, C. H. and Lucas J.A. (1982) - "Plant Pathology and Plant
Pathogens" Blackwell Scientific Publications, Oxford.

Fahy, P.C. and Persley, G.J., ed., "Plant Bacterial Diseases - A
Diagnostic Guide", Academic Press, 1983.

Grierson, D. and Covey, S.N. (1988) "Plant Molecular Biology",
Cambridge University Press, 2nd Edition.

"Handbook of Plant Diseases in Colour", Volume 2, Field Crops,
Department of Primary Industries,1978.

Jackson and Mason, "Mycorrhiza", Edward Arnold, 1984.

Kendrick, Bryce, "The Fifth Kingdom", 2nd edn., Mycologic
Publications, 1992.

Lugtenberg, B.J.J. Ed. (1989) "Signal Molecules and Plant Microbe
Interactions:, Springer-Verlag, Berlin.

Manners, J.G. (1982) "Principles of Plant Pathology", Cambridge
University Press.

"Mycologial Research" (was TBMS), and other relevant journals
in the library.

Patil S S et al (Eds) (1991) "Molecular Strategies of Pathogens
and Host Plants", Springer-Verlag, Berlin.

Pegg G F and Ayres P G (1987) (Eds) "Fungal Infection of Plants",
Cambridge University Press, Cambridge.

Persley, D., ed, "Diseases of Fruit Crops", Department of Primary
Industries, 1993.

Persley, D., ed, "Diseases of Vegetable Crops", Department of
Primary Industries, 1994.

"Phytopathology"

Powell and Bagyaraj, "V.A. Mycorrhiza", CRC Press, 1984.

Reynolds, D.R., ed. "Ascomycete Systematics", Springer - Verlag,
1981.

Sanders, Mosse and Tinker (Eds), "Endomycorrhizas", Academic Press,
1975.

Schenk, N C (ed), "Methods and Principles of Mycorrhizal Research",
American Phytopath Soc, 1982.

Smith, J.E. and Berry, D.R., "The Filamentous Fungi", 3 Vols,
Edward Arnold, 1975-1978.

Sutton, B. C., "The Coelomycetes", Commonwealth Mycological Institute,
1980.

Verma, D P S Ed (1991) "Signal Molecules in Plant and Plant-Microbe
interactions", Springer-Verlag, Berlin.

Note: In addition to the USQ library, students have access to the
Department of Primary Industries Library, and the Queensland Wheat
Research Library.


STUDENT WORKLOAD REQUIREMENTS:

	ACTIVITY				HOURS
Lectures                                      	21
Laboratory or Practical Classes               	36
Project Work                                  	30
Field Trips                                   	4
Report Writing                                	25
Private Study                                 	49
Examinations                                  	5

ASSESSMENT DETAILS:

No	*F/S	Marks		Due		Description					Wtg(%)		LBL
1 	S 	        	WK 7    	PRAC EXAM IDENTIFICATION OF FUNGI       	10.00   	N
2 	S 	        	WK 7    	2 HR WRITTEN EXAM LECT. MATERIAL        	30.00   	N
3 	S 	        	END S1  	2 HR WRITTEN EXAM LECT MAT              	30.00   	N
4 	S 	        	END SEM 	WRITTEN REPORT ON PRAC PROJECT          	15.00   	N
5 	S 	        	T.B.A.  	2 WRITTEN REPORTS ON PRAC EXERCISES     	10.00   	N
6 	S 	        	END S1  	COLLECTION OF 5 DISEASED SPECIMENS      	5.00    	N

F=Formative, S=Summative

OTHER REQUIREMENTS:

Students are required to actively participate in
at least eighty percent of the practical classes in
this unit.
A student must obtain a pass (i.e. 50%) in both theory
and practical components of the unit.
In accordance with University policy and Guidelines,
i     an Examiner may grant an extension of the due date of an
      assignment in extenuating circumstances;
ii    no assignments will be accepted for assessment purposes
      after assignments or model solutions have been released
      except in extenuating circumstances;
iii   assignments submitted after the due date without any
      extenuating circumstances will attract a penalty of at
      most 20% of the assignment mark for each working day
      late;
iv    students who submit an assignment after the due date and
      wish to claim extenuating circumstances, must provide
      documentary evidence with the assignment explaining
      the circumstances;
v     the unit examiner shall consider a claim for extenuating
      circumstances and decide on the outcome;
vi    the decision of the Dean shall be final in any dispute
      that may arise in the implementation of these guidelines.

This information is accurate as at 02/12/96