Morphological diversity of pedicels in phoretic deutonymphs of Uropodina mites (Acari: Mesostigmata)
| Autor: | Zbigniew Adamski, Wojciech Witaliński, Daria Bajerlein |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Nymph
Uropoda orbicularis Uroobovella pulchella Microscopy Electron Transmission Species Specificity Trichouropoda Botany Animals Acari Arthropods Ecology Evolution Behavior and Systematics Mites biology General Medicine Anatomy biology.organism_classification pedicel Coleoptera Pulchella phoresy Homogeneous Pedicel Insect Science Microscopy Electron Scanning Uroobovella nova Trichouropoda ovalis Mesostigmata Uroobovella Poland Developmental Biology |
| Zdroj: | Arthropod Structure & Development. 42:185-196 |
| ISSN: | 1467-8039 |
| DOI: | 10.1016/j.asd.2013.02.002 |
| Popis: | The pedicel is a structure that connects the phoretic deutonymph of Uropodina mites with its carrier and enables dispersal. The shapes, lengths and diameters of pedicels formed by Uropoda orbicularis, Trichouropoda ovalis, Uroobovella pulchella and Uroobovella nova were studied by scanning and light microscopy. Pedicels of U. orbicularis and T. ovalis have the shape of a straight stalk. In U. pulchella, the pedicel is extremely short, irregularly shaped and composed of homogeneous material. The longest pedicel is found in U. nova and it may be helically coiled in this species. The length of the pedicel is positively correlated with deutonymph body size between species, but not within species. Pedicels of U. orbicularis and U. pulchella have the largest diameter. The pedicel diameter in U. orbicularis and T. ovalis is inversely proportional to its length, but not in U. nova and U. pulchella. The constituent of pedicel stems in U. pulchella is homogeneous, whereas in U. orbicularis and T. ovalis it contains a bundle of tightly packed fibres. In U. nova coiled pedicels are comprised of two layered materials of different electron density, one of which is electron lucid and located peripherally. Hypotheses on the origin of the pedicel are proposed. |
| Databáze: | OpenAIRE |
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