These toxic bodies result either as the products of the secretion of microbial life, or as the result of the normal functionation of cellular life in the higher vegetable or animal organisms.
Experiments have shown that this property is not peculiar to microbial virus alone, but that it is common to the venoms the toxicity of which is essentially due to some toxins, with the exception of those agents noted.
We will not dwell longer here on the toxins of microbial origin.
We will not speak of the distinctions it has been sought to establish between the substances which possess these different properties, but will at once take up the discussion of several of the microbial toxins.
This is practically contrary to the opinion of Behring and of Rauson,[27] according to which the innocuousness of the microbial poisons when administered per os is due exclusively to the lack of absorption.
The venoms are toxic principles very closely allied to the microbial toxins; like the latter, they form two classes, the one alkaloidal, the other proteid, possessing a true diastatic character.
These venoms, like the microbial toxins, possess but slight toxicity when absorbed via the stomach.
This is obtained, like the other microbial toxins, from a culture, prepared with more or less difficulty, from Eberth's typhoid bacillus.
In toxic microbial cultures it is necessary to distinguish the toxins proper from the toxic alkaloids (ptomaines) which generally accompany them; this is easily accomplished by evaporating the solution in a vacuum at about 30°C.
It is primarily on the farm and in the cow-house that methods of handling in a hygienic way should be insisted on, as microbial contamination increases at a prodigious rate, and it is the early microbe therefore which does the most damage.
Sterilizing agents have been evaluated not only for their ability to kill microbial life on surfaces and sealed inside components, but also for the agents' effects on spacecraft reliability as well (refs.
From an evolutionary point of view, if life has developed on Mars, we expect it to have evolved at least to a microbial stage.
The Level of Microbial Contamination in a Clean Room During a One-Year Period.
Learning how microbial spores are transported by air is important to biology, agriculture, and medicine.
The dilution rate is set at an arbitrary value, and the microbialpopulation is allowed to find its own level.
A Continuous Culture Apparatus for the Microbial Utilization of Hydrogen Produced by Electrolysis of Water in Closed-Cycle Space Systems.
Thermal Death Studies on Microbial Spores and Some Considerations for the Sterilization of Spacecraft Components.
Contemporary work on soil microbiology may show that manganese and other essential nutrients are perhaps most important in their functions for the preservation and balancing of microbial life and actions in soils.
In some cases the serum, thus aided, is enabled to throw off a milk microbial invasion.
At the lowest degree of the scale of organisms we already find veritable associations, microbial colonies, and in these associations, according to a recent work, a tendency to individuate by the constitution of a nucleus.
This heap will heat very rapidly, become as hot as the microbial population can tolerate, lose moisture very quickly, and probably smell of ammonia, indicating that valuable fixed nitrogen is escaping into the atmosphere.
Not only does the fertilizer itself stimulate the growth of plants, but fertilizer increases the microbial population.
The rich, black, grain-producing soils of the Ukraine (like our midwestern corn belt) carry very large microbial populations.
In time, hormones began to disappear from the picture, whereas enzymes were given a billing parallel to that accorded to the microbial component.
Coincidentally, vendors of starters in vogue at the time began to claim that their products included the newly reported microbial groups as well as an array of enzymes.
Ultimately, soil fertility should be evaluated not by humus content, nor microbial populations, nor earthworm numbers, but by the long-term health consequences of eating the food.
It does have a water-retentive, granular structure that facilitates the presence of air and moisture throughout the mass creating perfect conditions for microbial digestion to proceed.
As early ("pioneer") researchers began to issue formal and informal reports on microbial groups (e.
The death of the males cannot be attributed to microbial infection, but comes from some intrinsic cause.
Kukula[54] has tried to produce this toxic action in animals, employing microbial secretions obtained from cases of intestinal obstruction.
Not only is there auto-intoxication from the microbial poisons absorbed in cases of constipation, but microbes themselves may pass through the walls of the intestine and enter the blood.
Butyric acid and the products of albuminous putrefaction are amongst the most pernicious of the microbial poisons produced in the large intestine.
If we associate these amounts of solid impurities with their consequent bacterial impurities, then we shall obtain some idea of what themicrobial population of these milk-supplies may amount to.
The air of the country is far freer from microbial life than that of cities; whilst open spaces, such as those afforded by the London parks, are paradises of purity compared with the streets with their attendant bacterial slums.
During milking these sources had supplied the infection, and the peculiar fermentation was distinctly shown to be microbial in origin.
Some drain water, containing, of course, an abundance of microbial life, was placed in cylindrical glass vessels, and only the perpendicular rays of the sun were allowed to play upon it.
In some instances this contamination is due to the storing of water before use in reservoirs, where an excellent opportunity is offered for microbial multiplication.
While this is by no means a necessary accompaniment, its occurrence is so general that the term Fever has been applied to the general reaction of the organism to the microbial poison.
But the increase due to rise of temperature is small compared to that produced by the destructive action of the microbial products.
The muscles are weakened, but so far no satisfactory study has been made of the influence of microbial poisons on muscular contraction.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "microbial" in a variety of sentences. We hope that you will now be able to make sentences using this word.
