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Nematology

Professors
James G. Baldwin, Ph.D.
Edward G. Platzer, Ph.D. (Nematology/Biology)
Philip A. Roberts, Ph.D.
Professors Emeriti
Charles E. Castro, Ph.D.
Reinhold Mankau, Ph.D.
Ivan J. Thomason, Ph.D.
(Nematology/Plant Pathology)
Seymour D. Van Gundy, Ph.D.
(Nematology/Plant Pathology)
Assistant Professors
Paul DeLey, Ph.D.
Isgouhi Kaloshian, Ph.D.
••
Lecturers
J. Ole Becker, Ph.D.
Michael V. McKenry, Ph.D.
Antoon T. Ploeg, Ph.D.
Affiliated Faculty
John D. Radewald, Ph.D. (Agronomist Emeritus)
Cooperating Faculty
Bradley C. Hyman, Ph.D. (Biology)

Nematology is the study of roundworms, a diverse invertebrate phylum that occurs worldwide in virtually every environment and is second only to insects in the number of species. Only about 3 percent of all species have been studied or identified, and these include significant parasites of humans, animals, and plants. A primary mission of the Department of Nematology is to develop environmentally sound approaches to manage those nematodes that worldwide cause nearly 80 billion dollars' annual damage to crops. Other objectives are to use nematodes that benefit agriculture and the environment as agents of nutrient cycling and soil fertility and for biological control of some insect pests. Additional objectives focus on nematodes as fundamental models for addressing basic biological questions in genetics, development, and molecular biology. The department offers graduate and postgraduate opportunities in biocontrol, ecology, genetics, molecular biology, physiology, and systematics. It offers specific expertise in applied nematode problems of subtropical and desert agriculture.

A graduate program in Nematology is offered within a broad biological context. Students are enrolled in a more general department or interdepartmental program that provides a core of graduate courses. The general departments may include Biology, Botany and Plant Sciences, Entomology, Plant Pathology, and Soil and Environmental Sciences; interdepartmental programs may include Environmental Toxicology or Genetics. Dissertation research opportunities, major research professor, curriculum advisor, and specific courses are provided by the Department of Nematology to complement requirements of the more general department or program.

UPPER-DIVISION COURSES

NEM 120. Soil Ecology (3) S Lecture, 3 hours. Prerequisite(s): BIOL 002 or both BIOL 005A and BIOL 05LA; CHEM 001C or CHEM 01HC. Examination of soil biota and their relationships with plants and the soil environment. Emphasis is on soil biotic interactions that influence soil fertility, plant disease, and plant growth. Examines the importance of the different microbial and faunal groups from the rhizosphere to the ecosystem level. Cross-listed with ENSC 120 and SWSC 120. Crowley, DeLey

NEM 159. Biology of Nematodes (3) W Lecture, 2 hours; discussion and demonstration, 1 hour. Prerequisite(s): BIOL 005A, BIOL 005B, BIOL 005C, CHEM 001C or CHEM 01HC, CHEM 112C, MATH 009B or MATH 09HB, PHYS 002C, PHYS 02LC, BCH 100 or BCH 110A, one course in statistics. An introduction to the biology of nematodes. Topics include the morphology, physiology, development, genetics, behavior, and ecology of nematodes from parasitic and free-living habitats. In the discussion and demonstration section, students observe the comparative morphology and biology of nematodes and give oral presentations on selected nematode life histories. Cross-listed with BIOL 159. Baldwin, DeLey

NEM 190. Special Studies (1-4) Individual study, 3-12 hours. Prerequisite(s): consent of instructor and Department Chair. Individual study, directed by a faculty member, to meet special curricular needs. A written report is required. Course is repeatable.

NEM 197. Research for Undergraduates (1-4) Laboratory, 3-12 hours. Prerequisite(s): upper-division standing. Research in nematology with the guidance of a Nematology faculty member. A written report is required. Graded Satisfactory (S) or No Credit (NC). Course is repeatable.

GRADUATE COURSES

NEM 205. Identification of Plant Parasitic Nematodes (1) Summer (one week only) Lecture, 5 hours; laboratory, 25 hours. Prerequisite(s): graduate standing or consent of instructor. Five-day lecture and laboratory course on morphological identification of economically important plant parasitic nematodes in Tylenchida and Dorylaimida using dissecting and bright field microscopy. Includes preparation of microscope slides, diagnosis of field samples, and use of diagnostic keys. Offered in summer only. Baldwin

NEM 206. Phytopathogens: Nematodes (2) S Lecture, 1 hour; laboratory, 3 hours. Prerequisite(s): graduate standing or consent of instructor. Recognition, diagnosis, biology, and control of major nematode diseases of plants. Laboratory covers identification techniques, soil sampling and processing techniques, and process of pathogenesis. Cross-listed with PLPA 206. Roberts, Baldwin

NEM 226. Nematode Taxonomy and Comparative Morphology (4) W Lecture, 2 hours; laboratory, 6 hours. Prerequisite(s): consent of instructor. The taxonomy and comparative morphology of soil, plant parasitic, and aquatic nematodes. Emphasis on the Tylenchida, their importance, distribution, phylogeny, and speciation. Baldwin

NEM 227. Molecular Nematology (2) W, Odd Years Lecture, 2 hours. Prerequisite(s): graduate standing or consent of instructor. A review of contemporary molecular plant nematology. Topics include genetics, identification, plant disease resistance, and bioengineering resistance. Discusses the use of Caenorhabditis elegans as a model system for plant nematodes. Cross-listed with PLPA 227. Kaloshian

NEM 240. Field Nematology (1) F Lecture, 1 hour. Prerequisite(s): NEM 206/ PLPA 206. Six-day demonstration and field study course in applied nematology including diagnosis and prediction of nematode field problems, strategies for control, field plot design and establishment in association with diverse California crops. Graded Satisfactory (S) or No Credit (NC). McHenry

NEM 250. Seminar in Nematology (1) Seminar, 1 hour. Prerequisite(s): consent of instructor. Lectures and discussions by visiting scientists, staff and graduate students on topics in nematology. Normally graded Satisfactory (S) or No Credit (NC) only, but students may petition instructor for a letter grade on the basis of presentation of a formal seminar.

NEM 260. Current Research in Plant Pathology and Nematology (1) Seminar, 1 hour. Prerequisite(s): graduate status. Topics in plant pathology and nematology will be discussed by outstanding workers in the field from this and other campuses and by graduating students. Graded Satisfactory (S) or No Credit (NC). Cross-listed with PLPA 260.

NEM 290. Directed Studies (1-6) Individual studies on specially selected topics in nematology under the direction of a staff member. Graded Satisfactory (S) or No Credit (NC). Course is repeatable.

NEM 297. Directed Research (1-6) Experimental studies on specially selected topics in nematology under the direction of a staff member. Graded Satisfactory (S) or No Credit (NC).