منابع مشابه
Edward Wing Twining, 1887-1939.
Edward Wing Twining (Fig 1) generally is regarded as the “father” of British neuroradiology. Born on March 18th 1887, he came from a line of doctors, his grandfather and father being in family practice at Salcombe, Devon, in the south of England. He was educated at Epsom College and University College Hospital where he qualified in medicine in 1913. As a student dresser (medical student on a su...
متن کاملHierarchical chirality transfer in the growth of Towel Gourd tendrils
Chirality plays a significant role in the physical properties and biological functions of many biological materials, e.g., climbing tendrils and twisted leaves, which exhibit chiral growth. However, the mechanisms underlying the chiral growth of biological materials remain unclear. In this paper, we investigate how the Towel Gourd tendrils achieve their chiral growth. Our experiments reveal tha...
متن کاملGrowing Bacillus subtilis tendrils sense and avoid each other.
Growing tendrils of aflagellate hag mutants of Bacillus subtilis were found to show an avoidance response when colonizing a semi-solid medium, suggesting a tip-to-tip communication mechanism between colonies. There may be a second sensing mechanism involved in shaping the morphology of tendrils. Tendril growth in B. subtilis was dependent on and possibly shaped by the release of surfactin, a bi...
متن کاملLeaf damage induces twining in a climbing plant.
Successful climbing by vines not only prevents shading by neighbouring vegetation, but also may place the vines beyond ground herbivores. Here we tested the hypothesis that herbivory might enhance climbing in a vine species, and that such induced climbing should be greater in the shade. We assessed field herbivory in climbing and prostrate ramets of the twining vine Convolvulus arvensis. We eva...
متن کاملMechanics of climbing and attachment in twining plants.
Twining plants achieve vertical growth by revolving around supports of different sizes on which they exert a pressure. This observation raises many intriguing questions that are addressed within the framework of elastic filamentary structures by modeling the stem close to the apex as a growing elastic rod. The analysis shows that vertical growth is achieved thanks to discrete contact points and...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1893
ISSN: 0006-8071
DOI: 10.1086/326979