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Carrier Reviewed: March 2023 A plant or animal that carries a virus or other infective agent without showing symptoms. ...

Chasmothecium (pl. Chasmothecia) Reviewed: March 2023 Closed, usually spherical, ascus-containing structure of powdery mildew fungi, also known as a Cleistothecium. A sexual fruiting structure. ...

Chemotherapy Reviewed: March 2023 Treatment of disease by chemicals (chemotherapeutants) working internally. Chemical agent has toxic effect directly or indirectly on the pathogens without injury to the host plant. ...

Chimera Reviewed: March 2023 A plant with several tissue sectors or layers differing in genetic or chromosomal constitution from the original plant. ...

Chlamydospore Reviewed: March 2023 A thick-walled asexual resting spore formed by the modification of a fungus hypha. ...

Chlorosis Reviewed: March 2023 The abnormal plant color of yellowish-white or gray condition of plant parts resulting from the incomplete destruction of the chlorophyll. ...

Cirrus (pl. Cirri) Reviewed: March 2023 A curl-like tuft; a tendril-like mass or "spore horn" of forced-out spores. ...

Cleistothecium (pl. Cleistothecia) Reviewed: March 2023 Closed, usually spherical, ascus-containing structure of powdery mildew fungi, also known as a chasmothecium. A sexual fruiting structure. ...

Conidiophore Reviewed: March 2023 The specialized fungal hyphal branch that bears the conidium. ...

Conidium (pl. Conidia) Reviewed: March 2023 Asexual spore formed by abstriction and detachment of part of a hyphal cell at the end of a conidiophore and germinating by a germ tube. ...