(n.) A class of objects divided into several subordinate species; a class more extensive than a species; a precisely defined and exactly divided class; one of the five predicable conceptions, or sorts of terms.
(n.) An assemblage of species, having so many fundamental points of structure in common, that in the judgment of competent scientists, they may receive a common substantive name. A genus is not necessarily the lowest definable group of species, for it may often be divided into several subgenera. In proportion as its definition is exact, it is natural genus; if its definition can not be made clear, it is more or less an artificial genus.
Example Sentences:
(1) The genome characterization of the typing strains for all 13 species of the genus Staphylococcus, included into the Approval List of the Names of Bacterial (1980), is presented.
(2) The genus Streptomyces was dominant in the two studied localities.
(3) The compounds favored the development of bacteria of the genus Pseudomonas and inhibited the growth of all other gram-negative bacteria.
(4) Organisms of the genus Bacteroides represent the major group of obligate anaerobes involved in human infections.
(5) The 212 strains of this proposed subserovar examined to date display biochemical and serological properties typical of the species, are sensitive to the genus-specific bacteriophage, and cause keratoconjunctivitis in the Sereny test.
(6) The new species has been placed in a new genus and the name Tricornia muhezae proposed.
(7) Although differing somewhat in their responses to various biochemical and biophysical tests, all strains were assigned to the genus Flavobacterium.
(8) Ten TBT-resistant isolates from estuarine sediments and 19 from freshwater sediments were identified to the genus level.
(9) A new genus of actinomycetes, Excellospora Agre a. Guzeva gen. nov., is suggested on the basis of this study.
(10) A new genus of spirochaetes, Hollandina, is also described.
(11) The first group consisted of all strains belonging to L. interrogans and serovar andamana of L. biflexa; the second group consisted of the remaining 5 serovars of L. biflexa; the third group consisted of the genus Leptonema; and the fourth group consisted of only L. parva.
(12) The reservosomes of Trypanosoma spp., sub-genus Schizotrypanum, could be differentiated from the multivesicular bodies of other trypanosomatids, since they lack true vesicles.
(13) Statistical analysis of 251 phylogenetically informative nucleotide positions rejects the "volvocine lineage" hypothesis, which postulates a monophyletic evolutionary progression from unicellular organisms (such as Chlamydomonas), through colonial organisms (e.g., Gonium, Pandorina, Eudorina, and Pleodorina) demonstrating increasing size, cell number, and tendency toward cellular differentiation, to multicellular organisms having fully differentiated somatic and reproductive cells (in the genus Volvox).
(14) In all cases, the determinants of the killer trait are carried by obligate bacterial endosymbionts belonging to the genus Caedibacter.
(15) Lastly, the CVA indicated major differences across the genus to be located in the teeth and jaws, suggesting diet might be an important distinguishing feature in Colobus.
(16) Another pigment 7 was specifically present in the skin of genus Rhacophorus and was deduced to be a pteridine derivative composed of five molecules of pterin-6-carboxylic acid [1].
(17) Bacteria of the genus Thiobacillus can obtain energy from the chemolithotrophic oxidation of inorganic sulphur and its compounds (sulphide, thiosulphate and polythionates) and use this energy to support autotrophic growth on carbon dioxide.
(18) A platelet-aggregating activity was found in many snake venoms, predominantly those of the genus Bothrops, that is apparent only in the presence of the platelet-aggregating von Willebrand factor of plasma.
(19) Sporobolomyces yuccicola is the sixth species of the intermedius group, a group of atypical species of the genus Sporobolomyces equipped with Q-9.
(20) This reduction was confined to strict anaerobes, mainly the genus Eubacterium and Bifidobacterium.
Primula
Definition:
(n.) The genus of plants including the primrose (Primula vera).
Example Sentences:
(1) Primin itself was obtained from Primula elatior and from the petals (corollas) of Primula obconica.
(2) 15 cases of contact dermatitis to Primula obconica Hance are reported, 14 female and 1 male.
(3) The inhibition of the linear growth of the onion roots affected with the extract from 0-2 g of Rx Primulae in 100 ml of water (W0-2) and with the 0-05% solution (S0-05) of the saponin fraction after 24 hrs was about 70% of the blanc halves.
(4) As a complementary study to a previous work (14) in which we examined 43 cases of contact dermatitis to plants, we have taken a closer look at the provocative cases which made up 76% of that study - Allium (garlic) (11 cases), Primula (8), Frullania (8) and Compositae (6).
(5) 41% of the patients with positive reactions had current primula dermatitis at the time of patch testing.
(6) It is supposed that some of the detected quinones may function as allergens and therefore may be responsible for the contact dermatitis described in the literature due to several Primula species and some other species of the same family.
(7) A simple technique of patch testing with the primula leaf is described.
(8) ), quinones (Primula and tropical woods), long chain phenols (Anacardiaceae, Ginkgoaceae) and miscellaneous structures such as aldehydes, ketones, terpene hydrocarbons etc.
(9) Affecting mainly women, primula contact dermatitis is often misdiagnosed since its nondescript pattern suggests an endogenous dermatitis.
(10) Patch test with primin revealed the persistence of the highgrade hypersensitivity to Primula.
(11) The incidence among our patients increased from 0.45 to 3.4% when we included an ether extract of primula in our standard series.
(12) Allergic reactions to daffodils and primulas were rarely observed.
(13) Contact dermatitis to Primula obconica is not uncommon in the United States, yet it is scarcely mentioned in current North American dermatologic textbooks and literature.
(14) It was devoid of the long generation time and more complex sex cycle (among other problems) that complicated the biochemical study of higher plants (e.g., Primula), which Haldane and Scott-Moncrieff had attempted earlier.
(15) The sum of triterpene glycosides of Androsace septentrionalis L. (a plant of genus Primula) was shown to change the concentrations of lutropin and follitropin in the hypophysis and plasma and the ratio of these hormones in the blood plasma in the active phase of the cycle.
(16) A number of plant dermatitides are due to the presence of trichomes such as those due to linden, primula, wild rose or nettle.
(17) Primin, the allergen of Primula obconica Hance (primrose) proved to be the most effective one of all quinones tested in this and the preceding studies.
(18) The contact dermatitis produced by Primula are located principally in the face and hands.
(19) In 16 Primula species and 4 species of other genera the strong contact allergen primin could be detected by the Craven-test.
(20) In one of the two cases, the patient had had prolonged, previous contact with Primula but without reaction.