fungi) spicule spiroplasma - helical, motile, cell wall-less bacterium; member of genus Spiroplasma in class Mollicutes sporangiophore sporangiospore sporangium (pl. sporangia) spore sporidium (pl.sporidia) sporocarp spore-bearing fruiting body sporodochium (pl.sporodochia) sporogenous sporophore sporophyte sporulate spot stabilizing selection staghead stem pitting sterigma (pl. sterigmata) sterilant sterile fungus sterilization (adj. sterilized) stippling strain streak striate (n. striations) stroma (pl. stromata) stunting stylet knob (syn. basal knob) stylet-borne transmission (syn. nonpersistent transmission) subspecies substrate sunscald or sunburn suppressive soil susceptible (n. susceptibility) symptom symptomless carrier syncytium (pl. syncytia) synergism (adj. synergistic) synnema (pl. synnemata; syn. coremium) systematics systemic systemic acquired resistance (SAR) systemic fungicide T teleomorph (syn. perfect state) teliospore (sometimes called teleutospore, teleutosporodesm) Teliospore (sometimes called teleutospore) is the thick-walled resting spore of some fungi (rusts and smuts), from which the basidium arises. telium (pl. telia) temporary wilt thallus thermotherapy tolerance (adj. tolerant) toxicity toxin transmit (n. transmission) trap crop transmit (n. transmission) trenching tumor (syn. gall) type U urediniospore (also urediospore, uredospore) uredinium (also uredium; pl. uredinia) V vascular wilt disease vector vein banding vein clearing vermiform vertical resistance (syn. specific resistance) viable (n. viability) virescence virion viroid viroplasm virulence virulent viruliferous virus-laden, usually applied to insects or nematodes as vectors virus A virus is a microscopic particle (ranging in size from 20 - 300 nm) that can infect the cells of a biological organism. viscin W walling-off water-soaked white rot (of wood) white rust wild type wilt winterburn witches' broom wound X XLB (xylem-limited fastidious bacteria) xylem-limited fastidious bacteria (XLB) Y yellowing yellows Z zonate zoosporangium zoospore A zoospore is a motile asexual spore utilizing a flagellum for locomotion. Zygomycetes zygospore A zygospore is a sexual part of a fungus, a chlamydospore that is created by the nuclear fusion of haploid hyphae of different mating types. References Illustrated Glossary of Plant Pathology, American Phytopathological Society Plant Disease Control Glossary, Oregon State University Mycological Glossary, Illinois Mycological Association On-Line Glossary of Technical Terms in Plant Pathology, Cornell University (with pronunciation guide) Phytopathology Phytopathology Phytopathology Wikipedia glossaries using description lists