(n.) A peculiar kind of reproductive cell found in certain fungi, and often containing zoospores.
Example Sentences:
(1) Upon segregation of the conidium from the phialide cell by conidial wall formation, 'trench-like' invaginations gradually appeared in the plasma membrane and a disorganized rodlet pattern was formed on the outer surface of the maturing conidial wall.
(2) Common volatile organic compounds (acetaldehyde, ethylacetate, ethanol, n-propanol, isobutanol, 2-methyl-butanol, 3-methyl butanol) tested singly and in combination inhibited the spore (conidium) germination of Helminthosporium oryzae, Cercospora personata, Cunnighamella blakesleeana, Colletotrichum capsici, and Alternaria solani.
(3) The germ tube wall is laid down at the site of emergence from the conidium.
(4) The parent conidium and later the proximal germ tube showed progressive vacuolation and the cytoplasm became largely occupied by electron-translucent material.
(5) E2 prevents mycelium-to-yeast or conidium-to-yeast conversion in vitro at close to physiologic concentrations.
(6) Conidiogenous cells in both species developed melanin only within the lowermost part of the lateral walls while the other cells of the conidium were uniformly melanized around the circumference of the cell; melanin in these cells being deposited within, at least, half the width of the cell wall.
(7) Carbohydrate cytochemistry helped define three stages (Stages I, II, and III) of wild-type conidium maturation on the basis of changes in the ultrastructure and composition of the conidium wall.
(8) The conidium was bound by a multilayered cell wall.
(9) A study of the conidiation stage showed that a phialide and an immature conidium began to form at the tip of all germ tubes 18 h after the temperature shift.
(10) The abundance of chlamydospores of F. solani was coupled with cessation of conidium formation increasing fernasan doses.
(11) Conidium formation in 5 species of pathogenic hyphomycetous fungi, Sporothrix schenckii, Exophiala salmonis, E.
(12) Scatchard analysis of the data revealed an average of 1,200 binding sites per conidium, and an apparent dissociation constant (Kd) of 2.2 x 10(-9) M was estimated.
(13) (i) the genera Microsporum, Trichophyton and Epidermophyton have holoblastic conidium-ontogeny; (ii) the investigated species exhibit polymeristematic development; (iii) delivery of the conidia occurs by means of a special detaching mechanism: consisting in autolysis of a detaching-cell or cells; (iv) the macroconidia have a primary septum; (v)chlamydospores including "gemmae" and "persistent-organs", strikingly similar to the macro- and microconidia as investigated in aqueous preparations, are also formed.
(14) A synchronous and homogeneous microcycle required a certain relationship between the number of inoculated conidia and the concentration of the organic acid in the medium; the optimum was at 0.08 nmol acid per conidium.
(15) The present study considers the morphology and experimental pathogenicity in relation to - the 'wild' strains; the possible circumstances enhancing pathogenicity in strains recovered from the soil; the rate and nature of the transformational steps in morphology, in human and experimental infections by established pathogenic strains; the elimination of pathogenic strains to the surface of clinical lesions, enabling a simplified diagnostic proof of infection; the rate and nature of the reversion of pathogenic forms to the 'wild' type when the constraints of the host are lessened; the plasticity of conidium-pigmentation as a sign of pathogenicity; the morphological conversions on moist wattle-wood as occur in the Gold Mines; and a note on the therapeutic value of itraconazole.
(16) Therefore, it was suggested that allergens responsible for the reaginic antibody formation derive from the conidium but not from the mycelium.
(17) Since transformation was readily accomplished under in vitro conditions favoring mycelial to yeast dimorphism, it is suggested that the conidium of B. dermatitidis represents the primary infective unit of this pathogenic fungus.
(18) On Papanicolaou-stained Millipore filters, the most common finding was a yellow-brown-pigmented muriform conidium with characteristic transverse and longitudinal septations.
(19) irradiation) were found to be over 99.5% in Staphylococcus aureus, Staphylococcus epidermidis, Serratia marcescens, Bacillus subtilis (vegetative cell) and Bacillus subtilis (spore) and 67% in Aspergillus niger (conidium).
(20) The changes of cytoplasmic components concomitant with conidium to mature mycelium growth of Aspergillus fumigatus strain Ag 507 were analysed by one- and two-dimensional polyacrylamide gel electrophoresis (SDS-PAGE; 2-DE).
Oidium
Definition:
(n.) A genus of minute fungi which form a floccose mass of filaments on decaying fruit, etc. Many forms once referred to this genus are now believed to be temporary conditions of fungi of other genera, among them the vine mildew (Oidium Tuckeri), which has caused much injury to grapes.
Example Sentences:
(1) Eighteen species of Penicillium, one of Oidium and one of Paecilomyces were found to effect a stereospecific conversion of cis-propenylphosphonate to fosfomycin which was identified by paper chromatography and gas-liquid chromatography (GLC) of the trimethylsilyl esters.