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  • Canadian Science Publishing  (16)
  • French  (16)
  • 1
    Online Resource
    Online Resource
    NUTRITION DES LARVES DE TRIBOLIUM CONFUSUM DUVAL: I. RECHERCHE D'UN RÉGIME SYNTHÉTIQUE BASAL SATISFAISANT LEURS BESOINS NUTRITIFS
    Canadian Science Publishing ; 1951
    In:  Canadian Journal of Zoology Vol. 29, No. 2 ( 1951-04-01), p. 71-79
    Details
    In: Canadian Journal of Zoology, Canadian Science Publishing, Vol. 29, No. 2 ( 1951-04-01), p. 71-79
    Abstract: A purified diet suitable for the study of the qualitative amino acids requirements of the larvae of the Coleoptera Tribolium confusum is presented. The composition of the diet is as follows: amino acid mixture 20%, cornstarch 75.5%, cholesterol 1%, wheat germ oil 1.5%, salt mixture No. 2 U.S.P. XII 2%, yeast 0.5%, vitamin mixture M.V.–II. In presence of amino acids, glucose cannot be used as a source of hydrocarbon. The mixture is very hygroscopic, develops a brown color, and is apparently toxic to the larvae. The importance of choline as a growth factor is demonstrated. Wilson's Liver Fraction L or Liver Concentrate 1: 20 cannot replace this vitamin. Yeast appears to contain unknown factors for it improves growth when added to a diet already supplemented with vitamins known to be essential for the larvae. A mixture of 19 crystalline amino acids known to occur in casein satisfies the nitrogen requirements of the larvae of T. confusum equally as well as purified casein.
    Type of Medium: Online Resource
    ISSN: 0008-4301 , 1480-3283
    URL: Article
    DOI: 10.1139/z51-007
    RVK:
    WA 15000
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1951
    detail.hit.zdb_id: 1490831-1
    SSG: 12
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  • 2
    Online Resource
    Online Resource
    NUTRITION DES LARVES DE TRIBOLIUM CONFUSUM DUVAL: II. IMPORTANCE DES ACIDES AMINES
    Canadian Science Publishing ; 1951
    In:  Canadian Journal of Zoology Vol. 29, No. 2 ( 1951-04-01), p. 80-83
    Details
    In: Canadian Journal of Zoology, Canadian Science Publishing, Vol. 29, No. 2 ( 1951-04-01), p. 80-83
    Abstract: The normal pupation period of Tribolium confusum on whole wheat diet averages 18 days. In presence of a purified diet containing 19 crystalline amino acids known to exist in casein, the pupation period is increased to 28 days. Removal of one of the amino acids considered as nonessential for growth in the rat from such a diet, results in pupation periods falling between 26 and 32 days. On the other hand, omission of lysine, threonine, phenylalanine, methionine, isoleucine, and arginine, one at a time, increases the pupation period from 61 to 70 days. If valine, tryptophane, histidine, or leucine are left out singly, pupation is prevented, though two-thirds of the larvae survive. It is concluded that the amino acids known to be essential for growth in the rat are also essential for growth and pupation of the larvae of T. confusum. Four of these essential amino acids appear to be connected with the phenomenon of pupation.
    Type of Medium: Online Resource
    ISSN: 0008-4301 , 1480-3283
    URL: Article
    DOI: 10.1139/z51-008
    RVK:
    WA 15000
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1951
    detail.hit.zdb_id: 1490831-1
    SSG: 12
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  • 3
    Online Resource
    Online Resource
    Annual Biodeposition and Gross Energy Budget of Mature Pacific Oysters, Crassostrea gigas
    Canadian Science Publishing ; 1974
    In:  Journal of the Fisheries Research Board of Canada Vol. 31, No. 2 ( 1974-02-01), p. 185-190
    Details
    In: Journal of the Fisheries Research Board of Canada, Canadian Science Publishing, Vol. 31, No. 2 ( 1974-02-01), p. 185-190
    Abstract: The mean annual volume of seawater pumped by Pacific oysters in Departure Bay, British Columbia is 1488 liters/g per year. The energy requirement for metabolism and pumping is 1.74 cal/liter, while the mean annual caloric content of the seawater is 60.4 cals/liter. Annual biodeposition is 8.9 g/g per year; these data applied to a mean biomass of 190 g/m 2 for a mature oyster reef show that 22,052 kcal are theoretically available for ingestion, but only 11% are retained, mostly to be biodeposited. The biodeposits have a caloric value of 1545 kcal/m 2 and furnish an important nutritional substrate. Another important contribution to the food web is the annual release of gametes, equivalent to 502 kcal/m 2 reef.
    Type of Medium: Online Resource
    ISSN: 0015-296X
    URL: Article
    DOI: 10.1139/f74-030
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1974
    detail.hit.zdb_id: 3036-3
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  • 4
    Online Resource
    Online Resource
    A new tetraploid species of Avena discovered in Morocco
    Canadian Science Publishing ; 1985
    In:  Canadian Journal of Botany Vol. 63, No. 8 ( 1985-08-01), p. 1379-1385
    Details
    In: Canadian Journal of Botany, Canadian Science Publishing, Vol. 63, No. 8 ( 1985-08-01), p. 1379-1385
    Abstract: A newly discovered tetraploid oat species from Morocco is described morphologically and karyotypically. Some important morphological and karyotypical features are stressed and documented. Its main features are summarized with those of its allied species, Avena canariensis and Avena atlantica. Its habitat and distribution are also described.
    Type of Medium: Online Resource
    ISSN: 0008-4026
    URL: Article
    DOI: 10.1139/b85-191
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1985
    detail.hit.zdb_id: 218116-2
    detail.hit.zdb_id: 1481926-0
    SSG: 12
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  • 5
    Online Resource
    Online Resource
    Generic relationships in Triticeae based on computations of Jardine and Sibson B k clusters
    Canadian Science Publishing ; 1978
    In:  Canadian Journal of Botany Vol. 56, No. 23 ( 1978-12-01), p. 2948-2954
    Details
    In: Canadian Journal of Botany, Canadian Science Publishing, Vol. 56, No. 23 ( 1978-12-01), p. 2948-2954
    Abstract: The Jardine–Sibson B k clustering method was applied to a dissimilarity matrix of genera of the Triticeae to obtain sequences of relationships in terms of overlapping clusters. In this way, the clinal relationships in the tribe were portrayed. Selected aspects of the findings are documented in detail and the results are discussed in the light of previous findings. In addition to those that are corroborated by the present study, new relationships are revealed also. For instance, the Aegilops–Triticum group is reconfirmed here, but the relationship of Henrardia to that group is a new finding which, along with others, should be tested by other means so that eventually it might be used in gene transfer.
    Type of Medium: Online Resource
    ISSN: 0008-4026
    URL: Article
    DOI: 10.1139/b78-357
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1978
    detail.hit.zdb_id: 218116-2
    detail.hit.zdb_id: 1481926-0
    SSG: 12
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  • 6
    Online Resource
    Online Resource
    Relationships between Hordeum bulbosum L. subsp. bulbosum and H . bulbosum subsp. nodosum comb, et stat. nov.
    Canadian Science Publishing ; 1985
    In:  Canadian Journal of Botany Vol. 63, No. 4 ( 1985-04-01), p. 735-743
    Details
    In: Canadian Journal of Botany, Canadian Science Publishing, Vol. 63, No. 4 ( 1985-04-01), p. 735-743
    Abstract: Material of the diploid (HBD) and tetraploid (HBT) Hordeum bulbosum collected in the Mediterranean and Near East areas was examined for 14 morphometric characters. Exploratory data analysis revealed that cilia on the margins of the glumes of the central spikelets may or may not be present in HBT but are never present in HBD. The data were submitted to various kinds of discriminant analysis in which group assignment was based on ploidy level. When presence–absence of cilia on glume margins is used in combination with the resulting linear discriminant functions (DF) there is about 91% probability of correct identification; with DF alone there is about 81% probability. The results of discriminant analysis provided justification, in the opinion of the authors, to regard HBD and HBT as separate taxa at the level of subspecies, namely H. bulbosum subsp. bulbosum and H. bulbosum L. subsp. nodosum (L.) Baum.
    Type of Medium: Online Resource
    ISSN: 0008-4026
    URL: Article
    DOI: 10.1139/b85-093
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1985
    detail.hit.zdb_id: 218116-2
    detail.hit.zdb_id: 1481926-0
    SSG: 12
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  • 7
    Online Resource
    Online Resource
    Avena atlantica , a new diploid species of the oat genus from Morocco
    Canadian Science Publishing ; 1985
    In:  Canadian Journal of Botany Vol. 63, No. 6 ( 1985-06-01), p. 1057-1060
    Details
    In: Canadian Journal of Botany, Canadian Science Publishing, Vol. 63, No. 6 ( 1985-06-01), p. 1057-1060
    Abstract: A newly discovered diploid oat species from Morocco is described morphologically and karyotypically. Some important morphological and karyotypical features are stressed and documented. Its habitat and distribution are also described.
    Type of Medium: Online Resource
    ISSN: 0008-4026
    URL: Article
    DOI: 10.1139/b85-144
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1985
    detail.hit.zdb_id: 218116-2
    detail.hit.zdb_id: 1481926-0
    SSG: 12
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  • 8
    Online Resource
    Online Resource
    Taxonomic examination of Triticale (× Triticosecale )
    Canadian Science Publishing ; 1990
    In:  Canadian Journal of Botany Vol. 68, No. 9 ( 1990-09-01), p. 1889-1893
    Details
    In: Canadian Journal of Botany, Canadian Science Publishing, Vol. 68, No. 9 ( 1990-09-01), p. 1889-1893
    Abstract: A detailed study of inflorescence, glume, lemma, and lodicule characters was conducted in 108 accessions of triticales (2n = 6x = 42; 2n = 8x = 56), in 102 herbarium specimens representing 21 species of Triticum and Aegilops, and in 30 herbarium specimens representing 12 species of Secale. The differences observed justify in our opinion generic status for triticales. A key has been provided for distinguishing the genera Secale, Triticum, and Aegilops and the nothogenus ×Triticosecale. In addition to morphological differences, cytological differences and other differences in starch granules and glutenin morphology, known from other studies, provide further support for the generic status of triticale. Key words: Triticale, Secale, Triticum, wheat, rye, taxonomy.
    Type of Medium: Online Resource
    ISSN: 0008-4026
    URL: Article
    DOI: 10.1139/b90-247
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1990
    detail.hit.zdb_id: 218116-2
    detail.hit.zdb_id: 1481926-0
    SSG: 12
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  • 9
    Online Resource
    Online Resource
    Maximally informative hierarchy construction by successive two-state classification
    Canadian Science Publishing ; 1983
    In:  Canadian Journal of Botany Vol. 61, No. 12 ( 1983-12-01), p. 3297-3301
    Details
    In: Canadian Journal of Botany, Canadian Science Publishing, Vol. 61, No. 12 ( 1983-12-01), p. 3297-3301
    Abstract: Concepts for what it means for a classification to preserve information about taxonomic characters have been defined by various authors. Here we generalize with a single continuous parameter some of these concepts, and for a natural example comprising the characters and species of the genus Avena (Poaceae), compute by exhaustive search those classifications that most efficiently preserve information in the characters for several parameter values. Although these classifications are quite reasonable, it seems clear that the preservation of information is not the only desirable criterion for structuring classifications in botany. The work is preliminary in the sense that readers are invited to consider what might be the most useful range of parameter values.
    Type of Medium: Online Resource
    ISSN: 0008-4026
    URL: Article
    DOI: 10.1139/b83-369
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1983
    detail.hit.zdb_id: 218116-2
    detail.hit.zdb_id: 1481926-0
    SSG: 12
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  • 10
    Online Resource
    Online Resource
    Identification and quantitation of elongation factor EF-P in Escherichia coli cell-free extracts
    Canadian Science Publishing ; 1980
    In:  Canadian Journal of Biochemistry Vol. 58, No. 11 ( 1980-11-01), p. 1312-1314
    Details
    In: Canadian Journal of Biochemistry, Canadian Science Publishing, Vol. 58, No. 11 ( 1980-11-01), p. 1312-1314
    Abstract: EF-P, an elongation factor that stimulates peptide bond synthesis in vitro with some aminoacyl-tRNAs, has been identified by two-dimensional gel electrophoresis and the cellular content at three points in the growth curve has been measured. The molecular weight of EF-P is estimated to be 21 000. EF-P is a slightly acidic protein whose isoelectric point is close to RNA polymerase subunit α. The amount of EF-P present in Escherichia coli is about [Formula: see text]that of EF-G and the level is independent of the stage of cell growth; there is about one EF-P per 10 ribosomes. It is also shown that a highly purified preparation of EF-P is free of all known protein synthesis factors and ribosomal proteins.
    Type of Medium: Online Resource
    ISSN: 0008-4018
    URL: Article
    DOI: 10.1139/o80-177
    Language: French
    Publisher: Canadian Science Publishing
    Publication Date: 1980
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