PCA PLANT PATHOGENS EXAM 2026/27 | ALL QUESTIONS AND
CORRECT ANSWERS GUARANTEED PASS
Pathovar
Subdivision of a plant pathogenic bacterial species defined by host
range
Propagule
Portion of a plant which is used to generate a new plant
Race
Strain of a virus adapted to a specific host
Soil inhabitant/soil resident
Pathogen that can survive in the soil for long periods of time
Soil transient/soil invader
Pathogen that can survive in the soil for a short period of time
Vector
,An organism that can transport and transmit a disease
Apothecium
Cup-shaped ascocarp
Ascocarp
Fruiting body of an ascomycete
Ascospore
Sexual spores of ascomycete fungi that develop within an ascus
Basidiospore
A sexual fungal spore produced in a basidium, characteristic of the
basidiomycetes
Chlamydospore
A thick-walled, asexual, resistant spore; a survival spore
Cleistothecium
,Closed ascocarp, typical of powdery mildews, also known as the
chasmothecium
Conidium
An asexually produced fungal spore formed on a conidiophore,
produced in ascomycetes
Fungi imperfecti
Large and heterogeneous form division of fungi comprising forms for
which no sexually reproductive stage is known, also known as
deuteromycetes
Fungus
Saprophytic and parasitic spore-producing eukaryotic organisms that
lack chlorophyll and include molds, rusts, mildews, smuts,
mushrooms, and yeasts.
Haustorium (haustoria)
Specialized hypha of parasitic fungi that grows into a host's tissues
and absorbs its nutrients
Hypha
, One of many long, slender filaments that makes up the body of a
fungus
Mycelium
Densely branched network of the hyphae of a fungus
Oospore
Thick-walled, sexually derived resting spore of oomycetes
Perithecium
Flask-shaped ascocarp
Pycnidium
An asexual hollow fruiting body lined inside with conidiophores.
Sclerotium
Modified fungal hyphae that form a compact and hard vegetative
resting structure with a thick pigmented outer rind.
Spore
CORRECT ANSWERS GUARANTEED PASS
Pathovar
Subdivision of a plant pathogenic bacterial species defined by host
range
Propagule
Portion of a plant which is used to generate a new plant
Race
Strain of a virus adapted to a specific host
Soil inhabitant/soil resident
Pathogen that can survive in the soil for long periods of time
Soil transient/soil invader
Pathogen that can survive in the soil for a short period of time
Vector
,An organism that can transport and transmit a disease
Apothecium
Cup-shaped ascocarp
Ascocarp
Fruiting body of an ascomycete
Ascospore
Sexual spores of ascomycete fungi that develop within an ascus
Basidiospore
A sexual fungal spore produced in a basidium, characteristic of the
basidiomycetes
Chlamydospore
A thick-walled, asexual, resistant spore; a survival spore
Cleistothecium
,Closed ascocarp, typical of powdery mildews, also known as the
chasmothecium
Conidium
An asexually produced fungal spore formed on a conidiophore,
produced in ascomycetes
Fungi imperfecti
Large and heterogeneous form division of fungi comprising forms for
which no sexually reproductive stage is known, also known as
deuteromycetes
Fungus
Saprophytic and parasitic spore-producing eukaryotic organisms that
lack chlorophyll and include molds, rusts, mildews, smuts,
mushrooms, and yeasts.
Haustorium (haustoria)
Specialized hypha of parasitic fungi that grows into a host's tissues
and absorbs its nutrients
Hypha
, One of many long, slender filaments that makes up the body of a
fungus
Mycelium
Densely branched network of the hyphae of a fungus
Oospore
Thick-walled, sexually derived resting spore of oomycetes
Perithecium
Flask-shaped ascocarp
Pycnidium
An asexual hollow fruiting body lined inside with conidiophores.
Sclerotium
Modified fungal hyphae that form a compact and hard vegetative
resting structure with a thick pigmented outer rind.
Spore
