MYCOLOGY IN PLANT PATHOLOGY AND PLANT VIROLOGY
Module PLANT VIROLOGY

Academic Year 2026/2027 - Teacher: MATILDE TESSITORI

Expected Learning Outcomes

The course aims to provide students with the fundamental knowledge of Plant Virology useful for the detection/diagnosis, prediction, prevention and complex management of diseases caused by virus and virus-like agents that affect the quality and quantity of plants.

Course Structure

The course will consist of lectures (21 hours) to provide students with foundational knowledge, along with supplementary activities such as laboratory exercises, case study discussions, in-depth analysis of scientific material, and educational visits to companies in the agri-food sector to develop students’ ability to apply their foundational knowledge (42 hours).

If the course is delivered in blended or remote mode, appropriate adjustments may be made to the above, in order to ensure consistency with the syllabus.

Required Prerequisites

Knowledge of Plant Pathology (essential), General Botany (important) and Systematics (useful).

Attendance of Lessons

Attending the classes is not mandatory, but strongly recommended, as it facilities the learning process and contributes to the achievement of the learning objectives.

Detailed Course Content

The Course aims to provide and deepen the general and basic knowledge of Plant Virology and virus-like diseases. The specific deepening of the characteristics of these pathogens will be aimed at studying the implications on pathogenetic processes and epidemiology, diagnosis, management and damage containment. Within the case studies will be treated the most important diseases from viruses and virus-like agents, with particular reference to phytosanitary emergencies and pathogens at risk of introduction, and the legislative frameworks related to prevention and phytosanitary management. The course contributes to the pursuit of the UN Agenda 2030 Sustainable Development Goals through specific workshops on sustainable management of virus diseases.

-General knowledge on virus and virus-like pathogens.

-Specific mechanisms of colonization, movement, pathogenesis, transmission, epidemiology.

-Semeiotics

-Principal methods of diagnosis 

-Methods of loss prevention and containment. Phytosanitary legislation.

-Specific case studies for the main crops

Textbook Information

For the study of the discipline, with particular reference to the basic topics, the following texts are recommended:

1) G. Belli. Elementi di Patologia vegetale, Piccin.

2) L. Bos. Plant viruses, unique and intriguing pathogens, Backhuys Publishers Leiden 

3) Reverberi et al. patologia vegetale molecolare. Piccin

4) AA.VV. I principali virus delle piante ortive. Edagricole. 


Exercise protocols are provided during class. This also includes copies of the PowerPoint presentations given during lectures and seminars, as well as scientific articles and other instructional materials provided by the lecturer, including any links and/or popular science articles for further reading.

Course Planning

 SubjectsText References
1Features of VirusesTextbooks 1, 2,3 and materials provided by the lecturer.
2Taxonomy and Systematics of VirusesTextbooks 1, 2,3 and materials provided by the lecturer.
3Plant-virus interactionsTextbooks 1, 2,3 and materials provided by the lecturer.
4Viruses and phases of the diseaseTextbooks 1, 2,3 and materials provided by the lecturer.
5Virus transmissionTextbooks 1, 2,3 and materials provided by the lecturer.
6Features of viroids, taxonomy and transmissionTextbooks 1, 2,3 and materials provided by the lecturer.
7General Information on Vascular Bacteria: Taxonomy, Pathogenesis, Symptoms, and TransmissionTextbooks 1, 2,3 and materials provided by the lecturer.
8Semiotics of virus and virus-like diseases virus e virus-similiTextbooks 1, 2 and materials provided by the lecturer.
9The Disease Triangle and Criteria for the Prevention and Containment of Viral and Virus-Like DiseasesTextbooks 1 and materials provided by the lecturer.
10Virus diseases prevention and legislationMaterials provided by the lecturer.
11Key diagnostic methodsTextbooks 1 and 3 and materials provided by the lecturer.
12Virus study case: CTVTextbooks 1 and materials provided by the lecturer.
13Virus study case: PPVTextbooks 1 and materials provided by the lecturer.
14Virus study case: ToBRFVMaterials provided by the lecturer.
15Virus study case: grapevine virusesTextbooks 1 and materials provided by the lecturer.
16Virus study case: citrus viroidsMaterials provided by the lecturer.
17Phytoplasmas study case: grapevine yellowsTesto 1 e materiale fornito dal docente.
18Xilematic bacteria study case: Xylella fastidiosaMaterials provided by the lecturer.
19Phloematic bacteria study case: huanglongbingMaterials provided by the lecturer.
20Supplementary activities: Symptom-Based Diagnostic MethodsPractical Exercises Notes
21Supplementary activities: Serological methodsPractical Exercises Notes
22Supplementary activities: Molecular methodsPractical Exercises Notes
23Field observations: monitoring symptoms and managing viral and virus-like diseases; plant health legislationPractical Exercises Notes

Learning Assessment

Learning Assessment Procedures

The evaluation of learning takes place by means of an oral interview. The assessment of the student's preparation will take place on the basis of the following criteria: the student's ability to learn and the level of in-depth study of the topics covered, the student's ability to synthesise and expound, and the student's reasoning ability.

The grading follows the following scheme:

Voto/Grade

Italiano

English

Non idoneo

Conoscenza e comprensione argomento: significative carenze e imprecisioni

Capacità di analisi e sintesi: irrilevanti, frequenti generalizzazioni

Utilizzo di referenze: completamente inappropriato

Knowledge and understanding of the topic: significant shortcomings and inaccuracies

Ability to analyze and synthesize: irrelevant with frequent generalizations

Use of references: completely inappropriate

18-20

Conoscenza e comprensione argomento: molto modesto, imperfezioni evidenti

Capacità di analisi e sintesi: appena sufficienti

Utilizzo di referenze: appena appropriato

Knowledge and understanding of the topic: very modest with evident imperfections

Analysis and synthesis skills: barely adequate

Use of references: just appropriate

21-23

Conoscenza e comprensione argomento: conoscenza poco più che sufficiente

Capacità di analisi e sintesi: discreta capacità di analisi e sintesi, argomenta in modo logico e coerente

Utilizzo di referenze: utilizza le referenze standard

Knowledge and understanding of the topic: knowledge is slightly above the minimum acceptable level

Ability to analyze and synthesize: a fair bility to analyze and synthesize information, presenting arguments in a logical and coherent manner

Using references: use standard references

24-26

Conoscenza e comprensione argomento: conoscenza buona

Capacità di analisi e sintesi: ha buone capacità di analisi e di sintesi buone, gli argomenti sono esposti coerentemente

Utilizzo di referenze: utilizza le referenze standard

Knowledge and understanding of the topic: good knowledge

Analysis and synthesis skills: good analytical and synthesis abilities, arguments are presented consistently

Using references: use of standard references

27-29

Conoscenza e comprensione argomento: conoscenza più che buona

Capacità di analisi e sintesi: ha notevoli capacità di analisi e di sintesi

Utilizzo di referenze: ha approfondito gli argomenti

Knowledge and understanding of the topic: knowledge more than good

Ability to analyze and synthesize: considerable abilities of analysis and synthesis

Use of references: the topic has been explored in depth

30-30 e lode

Conoscenza e comprensione argomento: conoscenza ottima

Capacità di analisi e sintesi: ha notevoli capacità di analisi e di sintesi

Utilizzo di referenze: significativi approfondimenti

Knowledge and understanding of the topic: excellent knowledge

Ability to analyze and synthesize: excellent abilities of analysis and synthesis

Use of references: important insights

 

To ensure equal opportunities and in compliance with current laws, students may request a personal interview in order to plan any compensatory and/or dispensatory measures based on educational objectives and specific needs. Students can also contact the CInAP (Centro per l’integrazione Attiva e Partecipata — Servizi per le Disabilità e/o DSA) through the referring professor within the department, (https://www.cinap.unict.it/content/referenti).

Examples of frequently asked questions and / or exercises

Complex Methods for the Containment of Viral and Virus-Like Diseases.

The Viral Disease Cycle

Case Studies: Description and Containment Methods

Risk Assessment of the Introduction and Spread of Viral and Virus-Like Agents

Methods of Virus Transmission