What's the difference between genera and genus?

Genera


Definition:

  • (n. pl.) See Genus.
  • (pl. ) of Genus

Example Sentences:

  • (1) The degree of infection and incidence of different genera covering the same period were identical in both series.
  • (2) Minimum inhibitory concentrations for these four antibiotics have been determined against 393 bacterial strains (13 species from eight genera) isolated from clinical materialKanamycin was the least active, 89% of the Pseudomonas aeruginosa strains being resistant.
  • (3) Members of the genera Rickettsia, Coxiella and Rochalimaea show considerable diversity in host cell range (in vivo vs. in vitro), kind of association with host cell (pericellular, intracellular), mode of entry, interactions with various host cell membranes, intracellular localization (intraphagosomal, free in cytoplasm, intranuclear), adaptation to preferred microhabitat (e.g., optimal pH for enzymes), details of growth cycle, mechanisms of host cell damage.
  • (4) Species of the genera Saccharomyces, Schizosaccharomyces, Debaryomyces and Schwanniomyces were compared from their extent of divergence in three regions from small (18S) and large (25S) subunit ribosomal RNAs comprising a total of 900 nucleotides.
  • (5) This study reports on the comparative in vitro activity of norfloxacin and ten topical antibiotics (nalidixic acid, polymyxin B, colistin, bacitracin, chloramphenicol, sulfamethoxazole, tetracycline, erythromycin, gentamicin, and tobramycin) against 203 pathogenic eye isolates of 17 genera (37 species).
  • (6) The 192 clinical isolates used in this study included 20 species of the genera Candida, Cryptoccoccus, Saccharomyces, Torulopsis, Trichosporon, Rhodotorula, and Geotrichum.
  • (7) The system was found to be present in representatives of genera that are characteristically facultative anaerobes, but the system was absent in members of those genera that are strictly aerobic.
  • (8) The results of the bacteriological examination of the body surface of A. lumbricoides yielded many genera of bacterial organisms.
  • (9) While members of the genera Actinomyces and Streptococcus may not be directly involved in the microbial progression, these species do appear to be essential to the construction of the network of microbial species that comprise both the subgingival plaque matrix.
  • (10) The green pigments from the fungi of the genera Trichoderma and Penicillium were partially extracted with formic acid.
  • (11) VVA was not detected as a line of complete identity in some 20 other Vibrio species or in 7 other bacterial genera.
  • (12) Bacterial genera in the GAC effluents and in the GAC units themselves were similar to those found in the raw water and in the sand beds.
  • (13) 1966.-Metabolically labeled smooth Escherichia coli lost between 10 and 90% of P(32), compared with control suspensions, when suspended for 60 min in normal serum at 37 C. Similar results were obtained with several other genera of Enterobacteriaceae.
  • (14) Motile, anaerobic gram-negative bacilli belonging to the genera Butyrivibrio, Succinimonas, Succinivibrio, Anaerovibrio, Wolinella, Campylobacter, Desulfovibrio, Selenomonas, and Anaerobiospirillum are being recognized in clinical specimens with increasing frequency.
  • (15) Poly(glycerophosphate) lipoteichoic acids from 24 Gram-positive bacteria of the genera Bacillus, Enterococcus, Lactobacillus, Lactococcus, Listeria, Staphylococcus, and the streptococcal pyogenic and oral group were analyzed.
  • (16) However, the overall homology between RV and the alphaviruses in this region of the genome was only 18%, indicating that these two genera of the Togavirus family are only distantly related.
  • (17) Fourteen Streptomyces strains from various numerical taxonomic classes and representatives of three other genera of actinomycetes were studied using an indirect enzyme-linked immunosorbent assay (IND-ELISA) to determine their serological relationships.
  • (18) Among asporogenous anaerobes, the main causative agents of pulmonary abscesses have been found to belong to four genera: Bacteroides, Fusobacterium, Peptococcus and Peptostreptococcus.
  • (19) The probe reacted with the pathogenic hardjo and tarassovi leptospiral serovars, but not with other genera of bacteria.
  • (20) Regardless of genera, microorganisms which grew well in fish were able to produce TVA and TVB.

Genus


Definition:

  • (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.