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Questions and Answers
What is the definition of etiology?
What does the term 'pathogen' refer to?
What is the definition of plant injury?
What is the role of a causal agent?
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What is the meaning of 'pathological'?
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What is the term for an organism that is wholly dependent for its nutrition on another living entity?
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What does 'pathogenicity' refer to?
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Which term refers to a plant that can make its own food through photosynthesis?
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What is the characteristic when the host has the ability to exclude, hinder, or overcome the effects of a given pathogen or another damaging factor?
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Which term refers to the visible response of a plant to biotic and/or abiotic factors that result in a change or abnormality in the plant?
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What is the term for an organism that gains nourishment by digesting dead organic material?
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Which term refers to the mutually beneficial association between two or more different kinds of organisms?
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What is the term for the appearance and/or physical evidence of the causal factor of a plant’s abnormality?
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What do you call the totality of the effects demonstrated in a host by one disease, whether simultaneously or successively, and whether visible to the unaided eye or not?
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What is the characteristic that refers to the ability of a plant to be colonized by a pathogen or exposed to an abiotic factor without dying or demonstrating disease symptoms?
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Which term refers to an organism which lives on or in another organism and obtains its nutrition there from?
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Study Notes
Definitions and Concepts
- Etiology: Study or investigation into the causes or origins of diseases and conditions.
- Pathogen: An agent, often a microorganism such as bacteria, viruses, or fungi, that can cause diseases in hosts.
- Plant Injury: Damage or harm to plants resulting from various factors, including diseases, pests, environmental conditions, or mechanical impacts.
Roles and Characteristics
- Causal Agent: The specific factor or organism that induces disease or injury in a host; essential for understanding disease development.
- Pathological: Pertaining to or being a manifestation of disease; often descriptive of symptoms or physiological changes related to a condition.
- Obligate Parasite: An organism that relies entirely on a living host for its nutritional needs.
Plant Responses and Interactions
- Pathogenicity: Refers to the capacity of a pathogen to cause disease in a host, determined by various factors including host susceptibility.
- Autotroph: A plant that synthesizes its own food through photosynthesis, deriving energy from sunlight.
- Host Resistance: The ability of a host plant to exclude, hinder, or defend against a pathogen or negative environmental factor, preventing symptoms of disease.
Observations and Relationships
- Symptom: The visible or detectable response of a plant to biotic (living) or abiotic (non-living) factors, resulting in changes or abnormalities in its structure or function.
- Saprophyte: An organism that decomposes and derives nourishment from dead organic matter, playing a key role in nutrient cycling.
- Symbiosis: A mutually beneficial interaction between different organisms that can enhance survival and growth.
Disease Evidence and Manifestations
- Causal Factor Evidence: The observable signs or symptoms indicating the presence of a causal factor responsible for a plant’s abnormality.
- Disease Complex: The entirety of effects or symptoms exhibited by a host due to a particular disease, whether presenting visibly or not, and can include simultaneous or successive occurrences.
- Endophyte: An organism that lives within a host plant, deriving nutrition from it while potentially providing benefits to the host, showcasing a symbiotic relationship.
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Description
Test your knowledge of plant pathology and disease terms with this quiz. Explore concepts such as etiology, pathogens, and the study of plant diseases. Understand the causes, resulting losses, and control methods for plant diseases.
