ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 177 (1991), S. 27-38 
    ISSN: 1615-6110
    Keywords: Angiosperms ; Caryophyllaceae ; Moehringia intricata ; Taxonomy ; morphology ; Flora of S. Spain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The new taxonMoehringia intricata subsp.giennensis, from the calcareous mountains of the south-eastern Iberian Peninsula is described. A comparative morphological study with regard to the most closely related taxa, contributes information of leaf anatomy, seed and pollen morphology, ecology and distribution.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-2048
    Keywords: Age (pea root) ; Lectin (pea root) ; Nitrate (nodulation) ; Nodule ; Pisum (root lectin) ; Root lectin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Root lectins are believed to participate in the recognition between Rhizobium and its leguminous host plant. Among other factors, testing this hypothesis is difficult because of the very low amounts in which root lectins are produced. A double-antibody-sandwich enzyme-linked immunoassay, was used to determine nanogram quantities of pea lectin in root slime and salt extracts of root cell-wall material when pea seedlings were 4 and 7 d old. In addition, a critical NO 3 - concentration (20 mM) which inhibited nodulation was found, and the lectin present in root slime and salt extracts of root cell walls of 4- and 7-d-old peas supplied with 20 mM NO 3 - was comparatively determined. With the enzyme-linked immunoassay, lectin quantities ranging between 20 and 100 nanograms could be determined. The assay is not affected by monomeric mannose and glucose (pealectin haptens). The slime of the 4-d-old roots contained more lectin than the slime of the 7-d-old roots. Salt-extractable, cell-wall-associated lectin accumulated in the older roots. Nitrate affected slime and cell-wall production, and the extractability of cell-wall material in both age groups. The presence of NO 3 - increased lectin in the slime, most notably in the younger roots; the relative amount of lectin in the slime was almost doubled. The cell-wall-associated, salt-extractable lectin decreased two- to threefold compared with the control group.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2021-05-19
    Description: Marine organisms represent a new source for the discovery of anti-inflammatory agents (Grace et al., 1994), mainly obtained starting from sponges, coelenterates and algae. A representative compound from algae, due to its great number of properties, is the epitaondiol that inhibits the phospholipase A2 and the formation and/or release of prostaglandins and leukotrienes. Taking into account these antecedents, we decided to evaluate extracts from four Rhodophyte algae species of the genera Laurencia, Acantophora and Gracilaria in the models of mouse ear oedema induced by croton oil, writhing induced by acetic acid in mouse, and the assay of the tiobarbituric acid (TBA). The objective was to detect antiinflammatory, analgesic and antioxidant properties of the extracts. The extract from the algae of the genus Acantophora inhibits the mouse ear oedema induced by croton oil in 58%, and the extracts from the genera Laurencia and Gracilaria inhibit the writhing induced by acetic acid with values higher than 50%. None of the studied extracts had any effect in the assay of the TBA. Therefore, it can be concluded that the studied algae extracts seem to have antiinflammatory and analgesic properties, probably inhibiting the formation and/or release of prostaglandins.
    Description: Published
    Description: anti-inflammatory, analgesic,
    Keywords: Algae ; Antioxidants ; Algae ; Antioxidants
    Repository Name: AquaDocs
    Type: Journal Contribution
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2021-05-19
    Description: En el presente trabajo se estudia la capacidad antioxidante de varios extractos, acuosos e hidro-alcohólicos obtenidos a partir de algas y plantas marinas de la plataforma insular cubana. A todos los extractos se les determinó su contenido de polifenoles, proteínas, lípidos y azúcares totales, así como la actividad Superóxido Dismutasa (SOD). Todos los extractos evaluados mostraron una buena actividad antioxidante, con una CE50 inferior de 0,4 mg.ml-1. El contenido de polifenoles en los extractos de Ulva fasciata es menor el de las otras especies, aunque tanto el extracto hidro-alcohólico como el del alga seca e irradiada de dicha especie presentan una buena actividad antioxidante. El extracto hidro-alcohólico de Thalassia testudinum presenta el mayor contenido de polifenoles de todas las especies estudiadas y, a su vez, presenta buena actividad antioxidante. Al analizar los resultados, se destaca que los extractos hidro-alcohólicos de Dictyota pinnatifida, Padina haitiensis y Ulva fasciata son promisorios para continuar los estudios sobre sus posibilidades de uso como suplementos nutricionales, ya que presentan el mayor contenido de proteínas y, a su vez, la dos primeras tienen la mayor actividad antioxidante entre todas las especies evaluadas.
    Description: Centro de Bioproductos Marinos Instituto de Oceanología Centro de Radioisótopos
    Description: Published
    Description: Plantas marinas, Polifenoles, Proteínas, Azúcares totales, Antioxidantes
    Keywords: Proteins ; Antioxidants ; Proteins ; Antioxidants
    Repository Name: AquaDocs
    Type: Journal Contribution
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...