Bemisia tabaci (Hemiptera: Aleyrodidae) nymphal feeding in cotton (Gossypium hirsutum) leaves
| Autor: | Thomas P. Freeman, Dennis A. Margosan, Chang-Chi Chu, James S. Buckner, Thomas J. Henneberry |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
fungi
food and beverages Biology biology.organism_classification Gossypium hirsutum Hemiptera General Biochemistry Genetics and Molecular Biology Stylet law.invention law Insect Science Microscopy Botany Phloem Sieve tube element Electron microscope Nymph Agronomy and Crop Science Ecology Evolution Behavior and Systematics |
| Zdroj: | Insect Science. 14:375-381 |
| ISSN: | 1744-7917 1672-9609 |
| DOI: | 10.1111/j.1744-7917.2007.00164.x |
| Popis: | We used brightfield electron microscopy (BEM), differential interference con- trast microscopy (DICM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and confocal laser scanning microscopy (CLSM) to investigate the stylet pathways of Bemisia tabaci during nymphal feeding behavior in cotton leaves beginning with penetration of the abaxial leaf surface and ending with stylets in sieve tubes in phloem tissues. Most nymphal stylets within salivary sheaths penetrating leaf tissues made complex turns and developed more than one salivary sheath branch before ending in sieve tubes. The external morphology of the salivary sheaths and their routes between and through leaf cells are described during the present study. Results showed the presence of the stylet within the sieve tubes. B. tabaci nymphs may remove stylets and feed in different sieve tubes. Ten short movies showing the progression of the stylet penetrations from adaxial surface to the sieve tubes are attached to Figures 8-15. The report and movies can be viewed from the internet. Download the movies to a local drive in your computer first for fast upload. The movies are posted on the website http://www.ars.usda.gov/Services/docs.htm?docid=14629. The movies can be used as a teaching aid in biology classes. |
| Databáze: | OpenAIRE |
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