Micro-organisms Sentence Examples
The disease is due to poisoning by micro-organisms produced by deteriorated maize, and can be combated by care in ripening, drying and storing the maize.
Of all external agents acting for evil, however, probably vegetable and animal micro-organisms with a pathogenic bent are most to be feared.
These micro-organisms having found in the tissues everything favourable for their needs, rapidly multiply and very soon produce serious results.
There they show marked phagocytosis, attacking and taking up into their interior and destroying the micro-organisms in large numbers.
Nowak, however, found later that he could generate it where the turpentine failed to induce suppuration; he believes that it may arise quite apart from the influence of the organisms of suppuration, that it is not a biological product of the micro-organisms of disease, and also that it has nothing to do with emaciation.
By the continuous injections under the skin, in increasing doses, of the toxins of certain pathogenic micro-organisms, such as that of diphtheria, an animal-usually the horse-may be rendered completely refractory to the disease.
Lardaceous disease, however, here and in other regions, now appears to be due to the specific toxins of pyogenetic micro-organisms. In stone of the kidney a great advance has been made in treatment by operative means, and the formation of these stones seems to recent observers to depend less upon constitutional bent (gout) than upon unhealthy local conditions of the passages, which in their turn again may be due to the action of microorganisms.
The compounds of ammonia thus formed from the complex substances by many varied kinds of micro-organisms are ultimately oxidized into nitrates.
Inflammation of the Liver (hepatitis) may also be caused by an attack of micro-organisms which have reached it through the veins coming from the large intestine, or through the main arteries.
One practical outcome of these researches is the method now always adopted of sterilizing by a succession of gentle warmings, sufficient to kill the developed micro-organisms, instead of by one fierce heating attempting to attack the more refractory undeveloped germs of the same.Advertisement
Bog iron ore is an impure limonite, usually formed by the influence of micro-organisms, and containing silica, phosphoric acid and organic matter, sometimes with manganese.
The Knipovich expedition in 1004 found no traces of organic life below the depth of 220 fathoms except micro-organisms and a single Oligochaete; but above that level there exist abundant evidences of rich pelagic life, more particularly from the surface down to a depth of 80 fathoms.
The principal objections to this use of linseed is that it specially favours the growth of micro-organisms. There are numerous clean and efficient substitutes which have all its supposed advantages and none of its disadvantages.
It is not possible, however, by this method to entirely reproduce the character of the wine from which the yeast is derived inasmuch as this depends on other factors as well, particularly the constitution of the grape juice, conditions of climate, &c. The other micro-organisms naturally present in the must which is pitched with the pure culture are not without their influence on the result.
The sulphurous acid evolved destroys such micro-organisms as may be in the cask, and in addition, as it reduces the supply of oxygen, renders the wine less prone to acidulous fermentation.Advertisement
This reduction of acidity is partly due to the deposition of various salts of tartaric acid, which are less soluble in a dilute alcoholic medium than in water, and partly to the action of micro-organisms. Young wines differ very widely in their composition according to class and vintage.
He also found that in the case of old wines which had frankly deteriorated, the presence of micro-organisms could not be detected.
It is, however, not absolutely clear whether the improvement observed on maturation is actually due to the action of these micro-organisms. It may be that the conditions which are favourable to the improvement of the wine are also favourable to the continued existence of the micro-organisms, and that their disappearance is coincident with, and not the cause of, a wine's deterioration.
Small, however, as the micro-organisms are, they are larger than the capillary passages in some materials through which water under pressure may be caused to percolate.
This is either by inhibiting the growth of micro-organisms (Antiseptics) or by destroying them when present (Disinfectants).Advertisement
Being a mild antiseptic it helps prevents the growth of harmful micro-organisms.
A new community of plants, animals, fungi and micro-organisms has largely replaced the earliest pioneer species which first colonized the bare ground.
The process is similar to composting except it is non thermophilic or a cold process utilizing naturally occurring soil dwelling micro organisms.
Trapped moisture on the floor covering is a breeding ground for micro-organisms.
The micro organisms find it very difficult to settle or reproduce.Advertisement
Killing of micro-organisms by macrophages involves phagocytosis of the organism, followed by the production of oxygen radicals which then kill the phagocytosed organisms.
It was in the year 1886 that Hellriegel and Wilfarth first published in Germany the results of investigations in which they demonstrated that, through the agency of micro-organisms dwelling in nodular outgrowths on the roots of ordinary leguminous plants, the latter are enabled to assimilate the free nitrogen of the air.
It now is - whether the free nitrogen of the atmosphere is brought into combination under the influence of micro-organisms, or other low forms, either within the soil or in symbiosis with a higher plant, thus serving indirectly as a source of nitrogen to plants of a higher order.
Even in normal circumstances their play and counterplay, attractive and repellent, must be manifold almost beyond conception; for the body may be regarded as a collective organization consisting of a huge colony of micro-organisms become capable of a common life by common and mutual arrangement and differentiation of function, and by toleration and utilization of each other's peculiar products; some organs, such as the liver, for example, being credited with a special power of neutralizing poisons, whether generated under normal conditions or under abnormal, .which gain entrance from the intestinal tract.
About 1893 he commenced a series of special investigations on the subject of malaria, and by 1895 had arrived at his theory that the micro-organisms of this disease are spread by mosquitos (see 17.463, 20.786).
There are several materials now in use possessing remarkable power to decolourize clarify, chemically purify and oxidize water; but they are too costly for use in connexion with public water supplies unless a rate of filtration is adopted quite inconsistent with the formation of a surface film capable of arresting micro-organisms. This fact does not render them less useful when applied to the arts in which they are successfully employed.
Mastitis is an infection of the udder caused by micro-organisms, usually bacteria.
Sterilization - renders an object free from viable micro-organisms, including bacterial spores.
These fish need live rock (a rock with micro-organisms that help maintain a balanced ecosystem in the water).
Micro-organisms, which degrade other organic substances, will not decompose plastic.
Remember that the micro-organisms that break down the compost materials are alive.
The organisms and micro-organisms require moisture to thrive.
From there, a plan is developed to find ways to reduce pesticide use through use of pest-resistant species, crop rotation, or biopesticides.Biopesticides are derived from natural materials such as animals, micro-organisms, and bacteria.
They encourage the growth of micro-organisms to create healthier soils for higher plant yields.
Fertilizer blends may contain ingredients such as micro-organisms which can promote healthy soils.
Fungi is a group of micro-organisms; some have beneficial properties, while others are linked to sickness or disease.