Results 181 to 190 of about 10,751,966 (215)
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The Peniophorella praetermissa species complex (Basidiomycota)
Mycological Research, 2007The corticioid basidiomycete Peniophorella praetermissa has long been regarded as a morphologically variable species complex. An ITS-based phylogenetic study based on a worldwide sampling was carried out using parsimony and Bayesian inference. The resulting trees feature three major clades, further divided into well-supported subclades.
Nils, Hallenberg +5 more
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Variations in the prothrombin complex of different species
American Journal of Physiology-Legacy Content, 1961The prothrombin concentration of man, dog, rabbit, cat and cow as determined by the two-stage method is about the same but in sheep is only half as great. The one-stage prothrombin time of the plasma of these species varies greatly and is dependent upon the type of thromboplastin employed, the exposure to foreign surface and various serum factors as ...
A J, QUICK +3 more
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Speciation in the Brachionus plicatilis Species Complex
2017The Brachionus plicatilis species complex is the best-studied example among rotifers where the use of integrative taxonomy, coupling morphology, ecology, physiology, cross-mating experiments, and DNA taxonomy helps disentangling the biological reality of the different species in the complex.
Serra Manuel, Fontaneto Diego
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Cryptic species in the Terfezia boudieri complex
Antonie van Leeuwenhoek, 2009Phylogenetic analyses have corroborated the discovery of three internal transcribed spacer (ITS) Types in Terfezia boudieri isolates in the course of earlier studies and have emphasized the divergence of Type 2 from Types 1 and 3. The application of molecular and physiological tools described below, revealed the existence of cryptic species within T ...
Yael, Ferdman +4 more
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Complexation of Arsenic Species in Rabbit Erythrocytes
Chemical Research in Toxicology, 1994The binding of arsenite, As(III), and arsenate, As(V), by molecules in the intracellular compartment of rabbit erythrocytes has been studied by 1H- and 31P-NMR spectroscopy, uptake of 73As, and ultrafiltration experiments. For intact erythrocytes to which 0.1-0.4 mM arsenite was added, direct evidence was obtained for entry of 76% within 1/2 h and ...
M, Delnomdedieu +4 more
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Streptomyces species producing the streptovaricin complex
Folia Microbiologica, 1991Morphological, cultural and physiological-biochemical properties of Streptomyces sp. strain 1000 and its antibiotic production were investigated. Antibiotics 1011 (identical with the streptovaricin complex) and 1012 (with antibacterial action) were isolated from the cultural broth of this strain. The overproducing natural variant 1011 was isolated from
N, Vesselinova, R, Gesheva, V, Ivanova
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Complex Niches Favour Rational Species
Journal of Theoretical Biology, 1996On the whole living things evolve from simpler to more complex forms, though not undirectionally. The evolution of more complex species makes the environment more complex and also makes the evolution of even more complex species possible and more selectable.
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