This capsule then differentiates into a multilayered spore wall by deposition of materials between the double layers of the prospore membrane. |
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Rarely, bacteria that produce botulism may also occur in spore form in contaminated soil. |
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The sporophytes also develop opercula, peristomes, continuous columella, and a spongy layer between the amphithecium and the spore mass. |
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Formation of ridges upon dehydration was found to be accompanied by a pronounced decrease in spore size. |
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That is, these mosses have peristome teeth which are formed by walls growing between the rows of cells making up the mouth of the spore capsule. |
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The gametophyte is haploid, that is, each cell contains a single complete set of chromosomes, and arises from the germination of a haploid spore. |
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A spore can infect a plant and cause a new lesion which will produce spores in 7-10 days. |
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The asexual spore, or conidium, is formed from the tips of specialized spore-forming cells in a precisely regulated developmental plan. |
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To do this a mushroom spore is placed into a piece of doweling rod and then drilled into fresh timber or put into an old paperback. |
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The cause for this discrepancy may reside either in the photometers or the spore dosimeter, or both. |
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The alternative procedure, spore segregation, is impractical for hyperyellow mycelia that sporulate very poorly or not at all. |
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The enveloped sporogony is endogenous in spore sacs of sporont origin, daughter cells are formed by vacuolation. |
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In the final stages of sporogenesis, a dense perine is deposited on the spore surface. |
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Diseased spikelets may be entirely transformed into dark fungal spore masses. |
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Like anthrax, bacteria that produce botulism also occur in spore form in contaminated soil, although that's rare. |
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During spore formation in the hybrid, normal pairing of chromosomes can take place, and the chromosomes can be distributed equally to the spores. |
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When a spore germinates, it produces a flat thalloid plant with a greasy blue-green color and odd morphology. |
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Chloronemal filaments, which are produced following spore germination or tissue regeneration, only grow in the light. |
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This is inferred because spore viability is reduced in some checkpoint single mutants of budding yeast. |
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Two-thirds of the tetrads gave rise to four normally growing spores and one spore that formed a microcolony of 10 cells. |
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Mature soybean rust pustules have a small round opening at the top for spore release. |
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Our results demonstrate that the mechanisms of spore coat self-assembly are similar to those described for inorganic and macromolecular crystallization. |
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The cells from random spore colonies were examined microscopically. |
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The spore wall layers are laid down in a specific order in which the mannan, glucan, chitosan, and dityrosine layers overlay outward in a step-wise manner. |
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The CDC says that about 60 percent of the people who inhale the spore do not contract valley fever. |
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The C. deceptive should have pale pinkish spore print, adnate to decurrent gills about the same colour of the cap, which should be pale brown or greyish with incurved margins. |
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With the first hard frost of Autumn, all spore production stops and the artist's fungus becomes dormant until the establishment of a new spore tube layer the following spring. |
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The role of these structures in determining spore hydrophobicity, adhesion, dispersal, and resistance to environment stresses is poorly understood. |
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In the spore stage, the microsporidian cell is typically protected by a 30-40 nm thick proteinacious exospore and a 20-35 nm thick endospore layer. |
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It is one spore in a larger pox, the plundering of oceans worldwide. |
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A spore leaving the perithecium travels nearly straight up at first. |
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The initial, primary rhizoid emerges from the spore during germination. |
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The use of thallus fragments to produce plantlets by vegetative growth removes the need for fertile material and spore production. |
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Use of sodium taurocholate to enhance spore recovery on a medium selective for Clostridium difficile. |
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Spores were considered germinated once the spore coat ruptured and the proximal cell bulged out. |
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Botrychium mormo emerges even later, in June, which delays als o spore release, usually until late August. |
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The spore crystals also produced anemialike effects, such as increased microcytosis and hypochromia. |
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Effects of temperature on spore germination in some fern species from semideciduous mesophytic forest. |
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The process can be summarized by stating that cells can either divide to form new vegetative cells or alternatively begin to form a spore. |
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We know that exposures are not just to intact spores but also to hyphal and spore fragments which contain antigen or allergen. |
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As the spherical spore capsule dries, the operculum is forced off, followed by a cloud of spores. |
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Low molecular weight, saturated monocarboxylic acids combined with selected adjuvants can effectively inhibit mold spore germination. |
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Other fungi, like the puffballs, rely on alternative mechanisms for spore release, such as external mechanical forces. |
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With Bacillus anthracis it is very important to differentiate between the vegetive and spore forms. |
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Whether a spore is to grow into an organism depends on the combination of the species and the environmental conditions where the spore lands. |
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The color of the powdery print, called a spore print, is used to help classify mushrooms and can help to identify them. |
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The cause for mortality in the control vials might be the isoparaffinic oils used in the spore and control solutions. |
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A spike of eight Lycopodium spore tablets was added to each sample. |
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The posterior half portion of the spore is filled with sporoplasm. |
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Most studies of spore germination in seedless vascular plants have involved species that develop surficial, photosynthetic gametophytes following spore germination. |
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They begin with the basics of mushrooms, collecting them for the table, and making a spore print, then carefully explain how to identify mushrooms. |
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It will give you detailed information on how to make a spore print, etc. |
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After making spore print paper and hand lenses available to the students to assist in their identification process, Peeters sent them off, with orders to return in 90 minutes. |
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A spore print can be taken on this mushroom for identification purposes. |
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Secondly, the sporophyte phase of bryophytes remains attached to its gametophyte parent throughout its development to maturity and often past spore release. |
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The strain was rod shaped, gram positive, spore forming and nonmotile. |
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Among the organic acids tested, citric acid enhanced spore lethality, while acetic and lactic acids yielded a similar spore reduction to what occurred with deionized water. |
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Hornworts have no specialized structures to aid spore dispersal but a unique intercalary meristem results in relatively long period of spore production. |
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The spore count was done using haemacytometer and the concentration was adjusted to 107spores per mL before it was kept in the cold room for further used. |
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In the Filicales the leptosporangium has a specialized spore dispersal mechanism involving an annulus of cells with thick walls that ejects spores explosively as it dries out. |
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Both groups, also, have already evolved precocious spore germination. |
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Indusia opening was used to estimate the timing of spore release. |
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Many novices have mistaken humid water marks on paper for white spore prints, or discolored paper from oozing liquids on lamella edges for colored spored prints. |
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Plants dependent on spore reproduction had been taken out of the ecosystems, and replaced by the gymnosperm plant, which reproduces through the use of seeds instead. |
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Sporophytes are raised on stalks to facilitate spore dispersal, but unlike other mosses, Sphagnum stalks are produced by the maternal gametophyte. |
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Ecological studies of the colonisation process could add to our understanding of how spore reproducing lichens colonise surfaces already covered by cryptogamic swards. |
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Macroconidia are robust, thick-walled, widest toward the apical end of the spore, and 3-5 septate with a hooked apical cell and spindal to fusiform. |
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Above all, Spore says that it's important to prevent water from ponding on the roof. |
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Spore prints can be ochre in colour but difficult to obtain. |
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Spore germination followed the Vittaria-type development, whereas prothallus growth followed the Aspidium-type development. |
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Ray Samp takes on the subject of watering mushrooms during the growing cycle in his Spore Prints column this month. |
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The third is as a non-toxic sporicidal surface disinfectant for use against the Anthrax Spore. |
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In his Spore Prints column this month, Ray Samp takes us through the steps of the pinning process. |
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Ray Samp also discusses quality in this month's Spore Prints column. |
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For the National Clinical Trials Network, he works as the Director of the Biostatistics Core for a SPORE grant funded through the Sarcoma Alliance for Research. |
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Spore abortion can indicate environmental stress during sporogenesis. |
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