(a.) Of or pertaining to ontogenesis; as, ontogenetic phenomena.
Example Sentences:
(1) The involvement of phospholipids into the function of the hormonoreactive system realizing the catecholamine action on the skeletal muscle metabolism was studied at different stages of chicken ontogenetic development.
(2) Seizures elicited by posture change and intraperitoneal administration of convulsants were studied ontogenetically in the Mongolian gerbil (Meriones unguiculatus).
(3) Phylogenetic and ontogenetic justifications for this organization are adduced.
(4) The much less rapid ontogenetic decline seen for the predominant dopamine metabolite, homovanillic acid (HVA), indicates that differing factors affect CSF levels of the two acid metabolites.
(5) Further, there was no evidence of ontogenetic modification of the amylase isozymes.
(6) Consequently, the present results may mean that the studies using uptake of [3H]GABA, [3H]ACHC, or [3H]DABA as a specific marker for GABAergic neurons differentiating during the ontogenetic development of the central nervous system may have to be interpreted with caution.
(7) Ontogenetic changes of the total activity and the subcellular distribution of Ca2+-activated, phospholipid-dependent protein kinase (protein kinase C) were investigated in the cat visual cortex.
(8) The correlation with an anatomically and ontogenetically well-founded classification provides knowledge for use in the individual case which may be helpful in selecting the proper surgical procedure, in establishing a schedule, and in providing the prognosis.
(9) Plastic responses in leaf form resulting from ontogenetic or external influences are initiated very early in primordial development and are brought about by effects on the rate and direction of cell division and expansion in different regions of the primordium.
(10) Ontogenetic data on developmental stages I-IV of 3678 melanosomes based on geometric considerations (length, width, shape, and area) showed that MSH did not induce a complete transformation from spherical phaeomelanosomes to elliptical eumelanosomes.
(11) A certain recapitulation of the ontogenetic development of neuronal differentiation in PNETs is given by the fact that chromogranin A immunoreactivity can regularly be seen already in poorly differentiated neurons and synaptophysin in well-differentiated ones.
(12) Intercorrelations of dipeptidase activities vary ontogenetically, which is consistent with the need for coordinate expression of these enzymes during certain developmental stages.
(13) The ontogenetic study of pyruvate kinase in the brain and liver tissues was performed in different batches of rats, from the foetus at the 13th day of gestation to the adult subject.
(14) Ontogenetic differences in selenium metabolism could be one of the factors underlying the differences in the response of the young and the adult rats to toxic doses of selenite.
(15) It appeared only in the early phases of ontogenetic development (up to the age of 15 days); cataract was not observed during later development.
(16) The regimen of stress used is known to be associated with an abnormal ontogenetic pattern of testosterone secretion from the fetal testes.
(17) The backscattered electron imaging mode of the scanning electron microscope was used to study the ontogenetic acquisition of argyrophilia in Pneumocystis carinii in rats.
(18) The existence of an ontogenetic shift of tonotopic organization throughout the auditory pathway concomitant with cochlea maturation is a matter of controversy.
(19) This is similar to the ontogenetic sequence typically found for immune reactivity in vertebrates.
(20) The ontogenetic development of histamine was studied in the diabetes insipidus rat to clarify the possible interference between the lack of vasopressin and the development of histaminergic systems in the hypothalamus.
Phylogenetic
Definition:
(a.) Relating to phylogenesis, or the race history of a type of organism.
Example Sentences:
(1) Conclusions on phylogenetic trends of sexual dimorphism of skeletal robusticity and the effect of culture on it seem to be premature.
(2) The PCR amplified a 375-bp DNA fragment which was cloned and sequenced; the deduced amino acid sequence had significant identity with known TS sequences, including strict conservation of all phylogenetically invariant TS amino acid residues.
(3) A statistical method is developed for estimating the standard errors of branch lengths in a phylogenetic tree reconstructed without assuming equal rates of nucleotide substitution among different lineages.
(4) 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).
(5) The results revealed that: (1) There were few genetic variants on allelic constitutions of Chinese KM mouse colonies, and the genetic distance among KM subcolonies is 0.008-0.027 positively related with the time the colony closed; (2) The unique position of S: KM mouse was shown in phylogenetic diagram of 4 KM subcolonies, which agrees with the result from mandible analysis; (3) The allelic constitutions of KM mice differs from NIH mice a Swiss derivative colony at Es-3, Es-10, Glo-1, Gpt-1, Got-2 and Mpi-1 loci and the average genetic distance between KM and NIH colonies is 0.131 + 0.011, which indicates that Chinese KM mice is one of non-Swiss derivative subspecies.
(6) The unique structure of these cilia has systematic and phylogenetic significance for the Acoela, and it is argued that ultrastructural characters in general, including characters of organelles, can be validly applied to the phylogeny and systematics of the Metazoa.
(7) Both phylogenetic and phenetic distance analyses suggest that Alu sequences within the alpha and beta globin gene clusters arose close to the time of simian and prosimian primate divergence (about 50-60 MYA).
(8) Arapahovius seems to have had no phylogenetic successors.
(9) A phylogenetic taxonomy for Platyrrhini is proposed.
(10) Phylogenetic and ontogenetic justifications for this organization are adduced.
(11) Phylogenetic analysis of the aligned sequences by both phenetic and cladistic methods with H. perryi as an outgroup generated one best topology which pairs S. alpinus with S. malma as the most recently derived species, and pairs S. confluentus with S. leucomaenis.
(12) By comparing the DNA sequences of the human and fish visual pigment genes and knowing their phylogenetic relationship, one can infer the direction of amino acid substitutions in the red and green visual pigments.
(13) If other techniques of phylogenetic analysis confirm this evolutionary tree, we propose that the photocytes be given urkingdom status.
(14) During phylogenetic evolution such changes only occur very slowly.
(15) Specificity studies suggest that the stingray insulin receptor may represent a phylogenetic position prior to the evolutionary divergence of insulin and the insulin-like growth factors.
(16) A phylogenetic tree constructed from the sequences of these bacteria and published sequences indicated that the coryneform bacteria consist of a distinct eubacterial branch together with Streptomyces and Micrococcus spp.
(17) The phylogenetical relationships of these aggregates with mammalian bone marrow are discussed.
(18) A phylogenetic tree based on allelic variation detected electrophoretically at 20 enzyme-encoding loci revealed two major clusters and several deep branches composed of strains that synthesize msDNA.
(19) Sequence divergence in the 16S rRNA obtained from alignment with published insect sequences is consistent with phylogenetic hypotheses, in that Diptera and Lepidoptera are more closely related to each other (24% sequence divergence) than either is to Hymenoptera (31%).
(20) A differential, temporal and spatial expression of this epitope in metamorphosing nervous tissue was outlined, that apparently characterises homologous neuronal populations in two phylogenetically distinct holometabolous insects, i.e.