(n.) One of the minute grains in flowerless plants, which are analogous to seeds, as serving to reproduce the species.
(n.) An embryo sac or embryonal vesicle in the ovules of flowering plants.
(n.) A minute grain or germ; a small, round or ovoid body, formed in certain organisms, and by germination giving rise to a new organism; as, the reproductive spores of bacteria, etc.
(n.) One of the parts formed by fission in certain Protozoa. See Spore formation, belw.
Example Sentences:
(1) After absorption of labeled glucose, two pools of trehalose are found in dormant spores, one of which is extractable without breaking the spores, and the other, only after the spores are disintegrated.
(2) The dose response initially resembled that described by Scholer (1959) in which one million spores killed the majority of mice.
(3) Abnormal synaptonemal complexes were seen in all 19 crosses of N. crassa and N. intermedia that were examined, including matings between standard laboratory strains, inversions, Spore killers, and strains collected from nature.
(4) The mutant spores are pleomorphic and differ both in shape and size from the wild-type spores.
(5) The results presented here substantiate the hypothesis that in S. cerevisiae trehalose supplies energy during dormancy of the spores and not during the germination process.
(6) The fungicidal activity of six rabbit neutrophil cationic peptides (NP) against resting (dormant) spores, preincubated (swollen) spores, and hyphae of Aspergillus fumigatus and Rhizopus oryzae was examined.
(7) In the electron microscope large aggregates of beta glycogen particles were seen in the cytoplasm of sporoplasm cells in mature spores.
(8) The spore germination was synchronized by selection of the spores of the definite size and maintenance at a temperature of 0 degrees.
(9) GAD activity appeared in mutant spores after germination and increased to levels comparable to parent spores after 9 min of germination.
(10) The Ca++-form and H+-form spores of Clostridium botulinum 33A were investigated in vivo with respect to their water sorption and heat-resistance characteristics.
(11) Salt concentrations slightly lower than those providing inhibition tended to extend spore outgrowth time at low temperatures.
(12) The AL spores and the GN spores were morphologically distinct.
(13) Studies demonstrated the fact that there are present within the malignant cell and in the immediate area bacterial spores arising from one of several varieties of plant bacteria.
(14) The stages observed were diplokaryotic cells, sporogonial plasmodia, unikaryotic sporoblasts, and spores.
(15) The rod-shaped organism was motile, did not form spores, and had a gram-negative wall structure.
(16) Numerous factors influenced its activity: method of spore production, inherent spore resistance characteristics, alkalination, storage time and storage temperature.
(17) The inoculum level of infected spores in nutrient broth-yeast extract-glucose medium affected the transducing efficiency of SP-10 in lysates of these cultures.
(18) It can be dissociated from the spores using divalent metal chelators and will reassemble on the spores in the presence of calcium.
(19) Stable messenger ribonucleic acid (mRNA) was shown to be involved in both enterotoxin synthesis and synthesis of other spore coat proteins in Clostridium perfringens.
(20) Effects of alpha- or beta-D-glucose on the respiration of germinated spores (only germinated spores not including swollen spores and elongated spores) of Bacillus subtilis and B. megaterium were studied.
Sporogony
Definition:
(n.) The growth or development of an animal or a zooid from a nonsexual germ.
Example Sentences:
(1) The stages observed were diplokaryotic cells, sporogonial plasmodia, unikaryotic sporoblasts, and spores.
(2) Sporogony was completed in 10-11 days post-infection.
(3) Sporogony is disporoblastic, giving rise to 2 spores that are retained in pairs within the sporophorous vesicle.
(4) Consequently the first mitosis of this nucleus might be a reductional one and sporogony a haploid phase in the life cycle of this Microsporidia.
(5) Sporogony involved a process of multiple fission in which sporozoites formed from the periphery of a polymorphous sporont.
(6) omorii occurs naturally at temperatures less than 25 degrees C and therefore is a suitable laboratory vector for the cyclic transmission of P. berghei, a malaria parasite that completes sporogony at 18-21 degrees C.
(7) Neither chloroquine nor halofantrine had any marked effect on sporogony at the concentrations tested.
(8) Indications that nuclear fusion and chromosome reorganization occurred in merogony and sporogony were obtained by light microscopy but meiosis was not detected at the ultrastructural level.
(9) Analysis of carbohydrate content of sporulating oocysts revealed that mannitol content increased markedly during early stages of sporogony (first 4-6h) but slowly diminished during the next 40h of sporulation.
(10) The ultrastructural study indicated the following characteristics: parasite stages arranged in a random, unstratified manner in the xenoma; merogony by multiple fission; sporogonic stages isolated within a sporophorous vesicle containing several sporoblasts and polysporoblastic sporogony.
(11) The process of merogony is compared to sporogony within the tick salivary gland and with the differentiation of the intra-erythrocytic piroplasm stage.
(12) Tissues of cannibalized animals contained caryocysts that, after ingestion by the next host, released sporozoites that underwent merogony, gamogony, sporogony, and caryocyst formation in dermal tissues.
(13) The ultrastructural appearance of viruslike particles in several malaria parasites at different times in sporogony is described in detail.
(14) The uni- and multinucleate meronts were completely destroyed and lacked their nuclei, and the sporogonial plasmodia were frequently totally fragmented.
(15) Sporogony of the strain in C. arakawae was completed on day 3 after the infective blood meals at 25 degrees C. Sporozoites isolated from the salivary glands of C. arakawae on days 3 or 4 after feeding caused infection in all the chickens inoculated.
(16) The sequence encoded by the clone is expressed during sporogony as a single RNA transcript of about 3000 nucleotides.
(17) We have developed a model which we have used to i) assess the sporogonic development of Plasmodium berghei ANKA in Anopheles stephensi and A. freeborni mosquitoes and ii) determine the effect of chloroquine on the sporogony of P. falciparum NF-54 in A. stephensi.
(18) One sequence, involving meiosis and production of a moniliform sporogonial plasmodium, occurs in the larval fat body, resulting in eight uninucleate, spherical, and fully developed spores.
(19) Acid mucosubstances fixing alcian blue and proteinic granules rich in -SH groups appear during sporogony in various species of Thelohania, Pleistophora, Stempellia.
(20) Some stages of parasite development were evident with light microscopy and SEM, but the specific events of sporogony could be documented only with TEM.