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《Journal of bryology》2013,35(4):581-587
Abstract P. andrewsii appears to be widespread in the arctic regions of the U.S.S.R. and also in mountains of southern Siberia, the Altai Mountains. Except in the mountains of Central and Northern Europe the range of P. andrewsii does not overlap with P. annotina and P. camptotrachela. 相似文献
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《New Zealand journal of zoology.》2013,40(2):346-356
Abstract On 23 February 1979 Sir Robert Falla collapsed and died at his home in Eastbourne. He was 77. His sudden death came as a great shock to his multitude of friends and colleagues, many of whom were still sharing with Sir Robert a deep sense of loss at the death on 31 May 1978, shortly after the couple's golden wedding anniversary, of his charming wife Molly. 相似文献
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Immunological studies of Fe-containing superoxide dismutase (FeSOD) and glutamine synthetase (GS) have established a close relationship betweenOceanospirillum linum (the type species of the genus),O. beijerinckii, Alteromonas communis, A. vaga, and two unnamed species of marine bacteria (groups H-1 and I-1). The four latter species have, consequently, been assigned to the genusOceanospirillum asO. commune comb. nov.,O. vagum comb. nov.,O. kriegii sp. nov. (group H-1; type strain 197, ATCC 27133), andO. jannaschii sp. nov. (group I-1; type strain 207, ATCC 27135). The phenotypic properties of these species are presented together with their distinguishing traits. 相似文献
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《Journal of bryology》2013,35(4):417-422
AbstractThe Irish plant which, following Mitten, has commonly been referred to as Plagiochila ambagiosa Mitt. is specifically different from the type of P. ambagiosa, and is therefore described as Plagiochila atlantica F. Rose, sp. nov. It is now known from very restricted areas in Western Ireland, Western Scotland and North-western France. 相似文献
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A previously undescribed species of Euglena, E. myxocylindracea, sp. nov., is described from soil in a garden and in a while pine woods in Pike County, Pa. In addition to the, type, an organism (No. 457) in the Culture Collection of Algae. Indiana University, hitherto designated E. viridis var. terricola. is transferred to E. myxocylindracea as var. terricola. Differences such as the usual absence of an emergent flagellum, or the presence of an extremely short one (ca. 3.5–4 μ), and the dominance of a palmelloid state in a variety of liquid and solid culture media in which the cells secrete dichotomously branching slimy cylinders distinguish the new species from E. viridis. 相似文献
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《Carbohydrate research》1986,148(1):13-23
Several metal-sugar conjugates have been prepared. Chelate coordination complexes of copper(II) and zinc(II) were prepared from salicylaldimine ligands derived from combinations of methyl 3,4,6-tri-O-acetyl-2-amino-2-deoxy-β-d-glucopyranoside or 1,3,4,6-tetra-O-acetyl-2-amino-2-deoxy-β-d-glucopyranose and salicylaldehyde. Similar Schiff's bases were prepared from chitosan and complexed to copper(II). Cross-polarisation-magic angle spinning 13C-n.m.r. spectroscopy showed that paramagnetic ions have profound effects on the resolution obtainable and, at high concentration, result in broad, featureless spectra. In contrast, diamagnetic ions have little effect on the isotropic chemical shifts of the sugar chelates. 相似文献
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Prof Maria Cengia Sambo 《Plant biosystems》2013,147(3):437-455
Riassunto L'A. studia N. 87 entità di licheni raccolti nell'A. O. I. da ufficiali della Milizia Nazionale Forestale. Fra essi ci sono nuove per la scienza due specie: Chaenothecopsis africana, Theloschistes Sennii e 8 fra varietà e forme; molti sono nuovi per l'A.O.I. e per il Continente africano. 相似文献
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《Journal of bryology》2013,35(3):449-450
AbstractA single, small moss leaf has been found among very small amounts of contents extracted from the Tyrolean Iceman's colon. It belongs to the species Neckera complanata Hedw., a woodland moss of low to moderate altitudes. The leaf was accidently ingested and not consumed as food. 相似文献
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《Systematic and applied microbiology》2021,44(6):126273
Ten Bifidobacterium strains, i.e., 6T3, 64T4, 79T10, 80T4, 81T8, 82T1, 82T10, 82T18, 82T24, and 82T25, were isolated from mantled guereza (Colobus guereza), Sumatran orangutan (Pongo abeli), silvery marmoset (Mico argentatus), golden lion tamarin (Leontopithecus rosalia), pied tamarin (Saguinus bicolor), and common pheasant (Phaisanus colchinus). Cells are Gram-positive, non-motile, non-sporulating, facultative anaerobic, and fructose 6-phosphate phosphoketolase-positive. Phylogenetic analyses based on the core genome sequences revealed that isolated strains exhibit close phylogenetic relatedness with Bifidobacterium genus members belonging to the Bifidobacterium bifidum, Bifidobacterium longum, Bifidobacterium pullorum, and Bifidobacterium tissieri phylogenetic groups. Phenotypic characterization and genotyping based on the genome sequences clearly show that these strains are distinct from each of the type strains of the so far recognized Bifidobacterium species. Thus, B. phasiani sp. nov. (6T3 = LMG 32224T = DSM 112544T), B. pongonis sp. nov. (64T4 = LMG 32281T = DSM 112547T), B. saguinibicoloris sp. nov. (79T10 = LMG 32232T = DSM 112543T), B. colobi sp. nov. (80T4 = LMG 32225T = DSM 112552T), B. simiiventris sp. nov. (81T8 = LMG 32226T = DSM 112549T), B. santillanense sp. nov. (82T1 = LMG 32284T = DSM 112550T), B. miconis sp. nov. (82T10 = LMG 32282T = DSM 112551T), B. amazonense sp. nov. (82T18 = LMG 32297T = DSM 112548T), pluvialisilvae sp. nov. (82T24 = LMG 32229T = DSM 112545T), and B. miconisargentati sp. nov. (82T25 = LMG 32283T = DSM 112546T) are proposed as novel Bifidobacterium species. 相似文献
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《Carbohydrate research》1987,159(1):1-10
Cross polarisation—magic-angle sample spinning 13C-n.m.r. spectral have been measured in the solid state for p-nitrophenol, p-iodophenol, and their inclusion complexes with cyclomaltohexaose, cyclomaltoheptaose, and methylated cyclomaltohexaose. Analysis of the line-shapes of the resonances and the dipolar-dephasing experiments indicate that the guest molecules undergo motion in the host cavities, whereas the host molecules are almost static. The mode and rate of guest motion depend on the size of the cavity. 相似文献
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A. C. Ronse Z. A. Popper J. C. Preston M. F. Watson 《Plant Systematics and Evolution》2010,287(1-2):1-17
European representatives of Apium sensu lato (Apiaceae), and Apium prostratum and Naufraga balearica, were studied with morphological, fruit anatomical, and palynological methods. Morphometric data were compared with phylogenetic results from previous molecular studies. This confirms that most of the European Apium species belong to a separate group corresponding to the previously named genus Helosciadium. All these species had previously been formally named as Helosciadium species, except for the new combination Helosciadium bermejoi, which is formally described here. Molecular studies place Apium prostratum and Naufraga balearica close to Apium graveolens, the type species of Apium. Our morphometric results show similarities of Naufraga with H. bermejoi, but fruit anatomy distinguishes it both from Helosciadium and from A. graveolens/prostratum. The placement of Cyclospermum leptophyllum in a separate genus is confirmed. Diagnostic keys to the genera and Helosciadium species, and an annotated checklist are given. 相似文献
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A significant heterogeneity of the species Zygowilliopsis californica was revealed using RFLP-analysis of the PCR-amplified rDNA fragment spanning the 5.8S rRNA gene and the internal transcribed spacers ITS1 and ITS2. Phylogenetic analysis of the nucleotide sequences of ITS1 and ITS2 rDNA differentiated three varieties: Z. californica var. californica, Z. californica var. dimennae, and Z. californica var. fukushimae. The most variable was the ITS2 region, where 7–26 nucleotide substitutions were revealed. The varieties formed semisterile hybrids with meiotic segregation of control markers. The limits of the phylogenetic species concept are discussed. 相似文献
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Summary Two new nitrite oxidizing bacteria for which the names Nitrococcus mobilis and Nitrospina gracilis are proposed were isolated from the marine environment. Nitrococcus mobilis was cultured from South Pacific waters and it is a large motile coccus with unique tubular cytomembranes. Nitrospina gracilis was isolated from South Atlantic waters and it is a long slender rod which lacks an extensive cytomembrane system. Both are obligate marine organisms and both are obligate chemoautotrophs. The fine structure of these organisms is detailed.Contribution No. 2631 from the Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543. 相似文献
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The back cover of this book states that contrary to theclaims of the nativists, research shows that man-dispersed speciesincrease biological diversity, benefit ecosystems, and act asan important force for healing the planet. This is anuncompromising statement, and David Theodoropoulos divides hisdevelopment of the arguments supporting this statement intothree parts. Part I (Chapters 16) is Nature, Dispersaland Reaction. Part II (Chapters 7 and 8) is Why?Psychology, Politics and Pseudoscience. Part III (Chapters911) is Humanity and Diversity. There isalso an Introduction including a summary of findingsand An outline for a new theory of anthropogenic dispersal, 相似文献
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《Carbohydrate research》1986,149(2):263-277
Partially methylated and acetylated 3-deoxyoctitols were prepared from derivatives of 3-deoxy-d-manno-2-octulosonic acid (KDO), and identified as the d-glycero-d-talo and d-glycero-d-galacto isomers by g.l.c.-m.s. Mono- and oligosaccharide derivatives of KDO were subjected in sequence to methylation, carboxyl-reduction, hydrolysis, carbonyl-reduction, and acetylation to yield 1,2,6-tri-O-acetyl-3-deoxyoctitol derivatives. Carboxyl-reduction and then methylation gave the series of 2,6-di-O-acetyl derivatives. Oligosaccharides with KDO at the reducing end, e.g., β-d-ribofuranosyl-(1→7)-KDO, α-l-glycero-d-manno-heptopyranosyl-(1→5)-KDO, and α-KDOp-(2→4)-KDO, yielded, after carbonyl-reduction, methylation, carboxyl-reduction, hydrolysis, and acetylation, the 1,7-, 1,5-, and 1,4-di-O-acetyl derivatives, whereas remethylation after carboxyl-reduction gave the 7-, 5-, and 4-O-acetyl derivatives of 3-deoxyoctitol. General rules for the fragmentation of 3-deoxyoctitols during e.i.-m.s. were established. 相似文献
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Two new species and one new variety of Elatostema J. R. Forst. & G. Forst. (Urticaceae) are described from Yunnan and Xizang, China. Habitat details and morphological comparison with similar species are given and discussed. The new taxa proposed are: Elatostema densistriolatum W. T. Wang & Zeng. Y. Wu, E. latistipulum W. T. Wang & Zeng Y. Wu and E. cyrtandrifolium (Zoll. & Mor.) Miq. var. hirsutum W. T. Wang & Zeng Y. Wu. 相似文献
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Augusto Capriotti 《Archives of microbiology》1967,57(4):406-413
Summary Investigations of yeasts from 38 U.S.A. soils samples show the occurrence of 22 different species (16 sporogenous and 6 asporogenous).The most widespread species were Pichia fermentans and Hansenula anomala. The other isolated species were Saccharomyces ellipsoideus, Torulaspora delbrueckii, Pichia membranefaciens, Saccharomyces smittii, Saccharomyces carlsbergensis, Saccharomyces uvarum, Torulaspora rosei, Zygosaccharomyces rouxii, Zygosaccharomyces n. sp., Hansenula saturnus, Hansenula californica, Hansenula n. sp., Hansenula suaveolens, Debaryomyces n. sp., Torulopsis glabrata, Torulopsis n. sp. Candida tropicalis, Candida robusta, Rhodotorula glutinis, Trichosporon cutaneum and Trichosporon cutaneum var. multisporus. 相似文献
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Two new taxa of Minuartia L. (Caryophyllaceae) from Turkey, Minuartia aksoyi M. Koç & Hamzao?lu sp. nov. and Minuartia buschiana Schischk. subsp. artvinica M. Koç & Hamzao?lu subsp. nov. are described and illustrated. Their taxonomic positions are discussed and they are compared with allied taxa. The distributions of the new and closely related taxa are given. Seed structures were examined by SEM. 相似文献