Angiosperms
Research News and Information

Sunday, November 22, 2009

Expressions of ECE-CYC2 clade genes relating to abortion of both dorsal and ventral stamens in Opithandra (Gesneriaceae).

5 Oct 2009 BACKGROUND: ECE-CYC2 clade genes known in patterning floral dorsoventral asymmetry (zygomorphy) in Antirrhinum majus are conserved in the dorsal identity function including arresting the dorsal stamen. However, it remains uncertain whether the same ... Read more...

Identification of Carboniferous (320 million years old) class Ic amber.

30 Sep 2009 The presence of amber, the fossil form of the resins produced by many types of higher plants, has been reported from many localities in Mesozoic and Cenozoic rocks. We have found Class I (polylabdanoid) amber in Carboniferous sediments dating to ... Read more...

Quantitative synthesis of context dependency in ant-plant protection mutualisms.

30 Aug 2009 Context dependency, variation in the outcome of species interactions with biotic and abiotic conditions, is increasingly considered ubiquitous among mutualisms. Despite several qualitative reviews of many individual empirical studies, there has been ... Read more...

Latest indexed articles for 'Angiosperms'

These are the very latest articles for this heading:

• Expressions of ECE-CYC2 clade genes relating to abortion of both dorsal and ventral stamens in Opithandra (Gesneriaceae). 5 Oct 2009
• Identification of Carboniferous (320 million years old) class Ic amber. 30 Sep 2009
• Paleontology. Pushing back amber production. 30 Sep 2009
• Quantitative synthesis of context dependency in ant-plant protection mutualisms. 30 Aug 2009
• Long-term persistence of a neotropical ant-plant population in the absence of obligate plant-ants. 30 Aug 2009
• Selective significance of genome size in a plant community with heavy metal pollution. 30 Aug 2009
• Arbuscular mycorrhizae of dominant plant species in Yungas forests, Argentina. 30 Aug 2009
• Signals and prepatterns: new insights into organ polarity in plants. 30 Aug 2009
• Morphological and molecular analyses in Scleroderma species associated with some Caesalpinioid legumes, Dipterocarpaceae and Phyllanthaceae trees in southern Burkina Faso. 23 Aug 2009
• Ectopic over-expression of BhHsf1, a heat shock factor from the resurrection plant Boea hygrometrica, leads to increased thermotolerance and retarded growth in transgenic Arabidopsis and tobacco. 21 Aug 2009
• Design and evaluation of new analogs of the sweet protein brazzein. 18 Aug 2009
• Loss of matK RNA editing in seed plant chloroplasts. 11 Aug 2009
• Fumigant antitermitic activity of plant essential oils and components from Ajowan ( Trachyspermum ammi ), Allspice ( Pimenta dioica ), caraway ( Carum carvi ), dill ( Anethum graveolens ), Geranium ( Pelargonium graveolens ), and Litsea ( Litsea cubeba ) oils against Japanese termite ( Reticulitermes speratus Kolbe). 10 Aug 2009
• Hydroperoxy-cycloartane triterpenoids from the leaves of Markhamia lutea, a plant ingested by wild chimpanzees. 9 Aug 2009
• The frequency of polyploid speciation in vascular plants. 8 Aug 2009
• Contrasting evolutionary dynamics between angiosperm and mammalian genomes. 4 Aug 2009
• Characterization of steroidal saponins in saponin extract from Paris polyphylla by liquid chromatography tandem multi-stage mass spectrometry. 4 Aug 2009
• Anti-collagenase, anti-elastase and anti-oxidant activities of extracts from 21 plants. 2 Aug 2009
• The earliest normal flower from Liaoning Province, China. 30 Jul 2009
• A renal tuberculosis case: could Chinese medicine play a role? 30 Jul 2009

See a longer list of these articles.

Technical information about 'Angiosperms'

Definition: Any member of the more than 250,000 species of flowering plants. Angiosperms are often differentiated from GYMNOSPERMS by their production of seeds within a closed chamber (OVARY, PLANT). The Angiosperms division is composed of two classes, the monocotyledons (Liliopsida) and dicotyledons (Magnoliopsida).

Descriptor UI: D019684

Alternative terms: Angiosperms; Magnoliophyta;

Allowable Qualifiers: adverse effects; anatomy & histology; classification; cytology; drug effects; embryology; enzymology; genetics; growth & development; immunology; metabolism; microbiology; parasitology; physiology; poisoning; radiation effects; toxicity; ultrastructure; chemistry; virology;

Tree Number: B06.388.100;

History Note: 98

Technical Notes: GEN or unspecified; prefer specific families or specific plants