A microtubule organizing centre (MTOC) is responsible for the production of the sperm flagellum in Matsucoccus feytaudi (Hemiptera: Coccoidea) |
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| Institution: | 1. Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l''Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy;2. Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy;1. Programa de Pós-graduação em Biologia Celular e Estrutural, Departamento de Biologia Geral, Universidade Federal de Viçosa (DBG/UFV), Campus Universitário, Viçosa, Minas Gerais CEP 36570-900, Brazil;2. Laboratório de Entomologia Médica, Instituto de Pesquisas René Rachou-CPqRR, Fundação Oswaldo Cruz (Fiocruz-MG), Avenida Augusto de Lima, 1715, Belo Horizonte, Minas Gerais CEP 30190-002, Brazil;3. Department of Entomology, Kansas State University (KSU), Manhattan, KS 66506, USA;1. Medical Faculty, University of Maribor, Taborska ulica 8, SI–2000 Maribor, Slovenia;2. Department of Biology, Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, SI–2000 Maribor, Slovenia;3. Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia;1. Università degli Studi di Firenze, Dipartimento di Biologia, Via Madonna del Piano 6, 50019, Sesto Fiorentino, Firenze, Italy;2. Università degli Studi di Firenze, Dipartimento di Biologia, Via La Pira 4, 50121 Firenze, Italy;3. Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia 22908 and;4. Seattle Children''s Research Institute, Seattle, Washington 98101;1. State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China;2. Illinois Natural History Survey, Prairie Research Institute, University of Illinois, 1816 S. Oak St., Champaign, IL 61820, USA;3. Key Laboratory of Plant Protection Resources and Pest Integrated Management, Ministry of Education, Entomological Museum, Northwest A&F University, Yangling, Shaanxi 712100, China |
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| Abstract: | A microtubule organizing centre (MTOC) has been described in the spermatid of the hemipteran Matsucoccus feytaudi (Coccoidea). This structure, revealed as a fluorescent ring by treatment with γ-tubulin antibody, gives rise to a bundle of microtubules which surrounds the elongated cylindrical nucleus. This microtubule bundle has been considered an atypical sperm flagellum provided with sperm motility. A comparison of the M. feytaudi MTOC with the material associated with the centriole of Drosophila melanogaster spermatids confirms the great similarity between the two structures, both involved in the nucleation of microtubules. Like the D. melanogaster material associated with the centriole, the M. feytaudi MTOC is a transient structure which disappears or degenerates at the end of spermiogenesis and is no longer visible in the mature sperm. |
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| Keywords: | Scale insects Insect spermiogenesis Pericentriolar material Centriole adjunct γ-tubulin |
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