(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.
Poa
Definition:
(n.) A genus of grasses, including a great number of species, as the kinds called meadow grass, Kentucky blue grass, June grass, and spear grass (which see).
Example Sentences:
(1) Gonadectomy has no effect on POA aromatase in the female.
(2) In addition, the warm-responsive neurones in the VMH region exhibited larger thermal coefficients than those in the POA region.
(3) Activity of the aromatase system in the POA, which converts testosterone to 17 beta-estradiol (E2), is increased by systemic androgen.
(4) In contrast, in the preoptic area-anterior hypothalamus (POA-AH) these antisera assayed amounts of LHRH that varied as a function of binding characteristics, although the quantities did not vary with the estradiol treatment schedule.
(5) Interleukin-1 alpha (IL-1 alpha) and interleukin-1 beta (IL-1 beta) are thought to be endogenous pyrogens, i.e., to mediate fever production; warm-sensitive (W) and cold-sensitive (C) neurons in the preoptic area (POA) are presumed to be the ultimate targets of endogenous pyrogens.
(6) One week after the placement of a lesion by radiofrequency or microinjection of kainic acid in the organum vasculosum of lamina terminalis (OVLT) but not in subfornical organ, ACTH response to intravenous IL-1 beta was enhanced, whereas both radiofrequency-induced lesion and kainic acid in the preoptic area (POA) suppressed the response.
(7) Pancreatic oncofetal antigen (POA) and carcinoembryonic antigen (CEA) were determined in plasma of 195 patients with breast cancer and 90 patients with colon carcinoma.
(8) These results show that damage to the AH or AH-POA junction in male marmosets causes a profound suppression of sexual 'arousal' and copulatory behaviour and that such affects are not due to androgen insufficiency or other, non-specific, side effects of neural damage.
(9) The threshold of AD and OD response in POA neurons declined during estrus and proestrus of the estrous cycle and in the Ovx-E group, but increased in the Ovx-P group and during diestrus.
(10) To determine if the median eminence itself could direct the growth of GnRH axons, co-grafts of POA and a fetal medial basal hypothalamic (MBH) block, which was predominantly median eminence, were made.
(11) These results indicate that the inductions of fever and plasma ceruloplasmin by IL6 are, like those of IL1, modulated in the POA, albeit the effective doses are much higher than those of IL1.
(12) Area POa in the lower bank is the recipient of a projection from the rostral inferior parietal lobule.
(13) Each neurotransmitter antagonist was administered via a chronically implanted steel guide tube into either the preoptic area (POA), retrochiasmatic area (RCh), or the median eminence region (ME).
(14) It is apparent from these studies that estrogen appears to activate the neurons of the POA receiving inhibitory synaptic input via the axonal collateral branches of the ARC neurons, and that progesterone seems to activate the neurons of the POA receiving excitatory synaptic input.
(15) In vitro estrogen formation was significantly lower in POA (p less than 0.05) and MBH (p less than 0.01) after castration.
(16) Custer I contained isolates from green healthy leaves of Agrostis tenuis, Festuca rubra, Holcus lanata, Lolium perenne and Poa pratensis, and clusters 2 and 3 consisted of isolates from Holcus lanata seeds and leaves of P. pratensis respectively.
(17) It was subsequently shown that males with a bilaterally lesioned SDN-POA still showed an increase in plasma testosterone.
(18) GnRH fibers projected from the medial POA to a dense fiber plexus in the median eminence (ME).
(19) The hypothalamic preoptic area (POA) was electrically stimulated through permanently implanted electrodes in 4 unanesthetized sheep.
(20) Coronal sections from midportions of the preoptic area (POA), suprachiasmatic nucleus (SCN) and arcuate nucleus (ARC) were examined by quantitative light microscopy in young (5 month) and old (18-20 months) intact mice and in old mice which had been ovariectomized at 6 months of age.