Ultra Structural Comparison of Trophi in Species of the Genus Brachionus Pallas, 1766 in Aguascalientes State, Mexico
Author(s)
Gerardo Guerrero-Jiménez,
Marcelo Silva-Briano,
Araceli Adabache-Ortiz,
Sandra Hernández-Rodríguez
Affiliation(s)
Department of Biology, Autonomous University of Aguascalientes, Aguascalientes, Mexico.
Department of Biology, Autonomous University of Aguascalientes, Aguascalientes, Mexico.
ABSTRACT
Trophi is only found in rotifers. The trophi has been used as a tool to identify species as well as an instrument for reconstructing the phylogeny of the organism, morphometric analysis, etc. Twelve species of rotifers of the genus Brachionus Pallas, 1766 were collected from different regions of the state of Aguascalientes, Mexico. An ultra-structure analysis was performed to examine the structural composition of the trophi of each species using scanning electron microscopy (SEM). The SEM observations show significant differences in the structural composition of each species, with the most considerable differences found in the trophi of B. budapestinensis.
Trophi is only found in rotifers. The trophi has been used as a tool to identify species as well as an instrument for reconstructing the phylogeny of the organism, morphometric analysis, etc. Twelve species of rotifers of the genus Brachionus Pallas, 1766 were collected from different regions of the state of Aguascalientes, Mexico. An ultra-structure analysis was performed to examine the structural composition of the trophi of each species using scanning electron microscopy (SEM). The SEM observations show significant differences in the structural composition of each species, with the most considerable differences found in the trophi of B. budapestinensis.
Cite this paper
Guerrero-Jiménez, G. , Silva-Briano, M. , Adabache-Ortiz, A. and Hernández-Rodríguez, S. (2015) Ultra Structural Comparison of Trophi in Species of the Genus Brachionus Pallas, 1766 in Aguascalientes State, Mexico. Natural Science, 7, 425-437. doi: 10.4236/ns.2015.79045.
Guerrero-Jiménez, G. , Silva-Briano, M. , Adabache-Ortiz, A. and Hernández-Rodríguez, S. (2015) Ultra Structural Comparison of Trophi in Species of the Genus Brachionus Pallas, 1766 in Aguascalientes State, Mexico. Natural Science, 7, 425-437. doi: 10.4236/ns.2015.79045.
References
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[1] Wallace, R. and Snell, T. (2010) Chapter 8. Rotifera. In: Thorp, J.H. and Covich, A.P., Eds., Ecology and Classification of North American Freshwater Invertebrates, Academic Press, Italy, 173-188. http://dx.doi.org/10.1016/B978-0-12-374855-3.00008-X [2] Segers, H., Murugan, G. and Dumont, H. (1993) On the Taxonomy of the Brachionidae: Description of Plationus n. gen. (Rotifera, Monogononta). Hydrobiology, 268, 1-8. http://dx.doi.org/10.1007/BF00005736 [3] Markevich, G.I. and Kutikova, L.A. (1989) Mastax Morphology under SEM and Its Usefulness in Reconstructing Rotifer Phylogeny and Systematics. Hidrobiology, 186, 285-289. http://dx.doi.org/10.1007/BF00048923 [4] Funch, P., Sorensen, M. and Obst, M. (2005) On the Phylogenetic Position of Rotifera—Have We Come Any Further? Hydrobiology, 546, 11-28. http://dx.doi.org/10.1007/s10750-005-4093-6 [5] De Smet, W. (2001) Some Rotifera from Ile Amsterdam (Terres Australes et Antarctiques Francaises), with Description of Brachionus amsterdamensis sp. nov. (Monogononta: Brachionidae). Annales de Limnologie, 37, 9-20. http://dx.doi.org/10.1051/limn/2001007 [6] De Smet, W. (2005) Study of the Trophi of Testudinella Bory de St. Vincent and Pompholyx Gosse (Rotifera: Testudinellidae) by Scanning Electron Microscopy. Hydrobiology, 546, 203-211. http://dx.doi.org/10.1007/s10750-005-4198-y [7] Schroder, T. and Walsh, E.J. (2007) Cryptic Speciation in the Cosmopolitan Epiphanes senta Complex (Monogononta, Rotifera) with the Description of New Species. Hydrobiology, 593, 129-140. http://dx.doi.org/10.1007/s10750-007-9066-5 [8] Fontaneto, D., Herniou, E.A., Boschetti, C., Coprioli, M., Melone, G., Ricci, C. and Barraclough, T.G. (2007) Independently Evolving Species in Sexual Bdelloid Rotifers. PLoS Biology, 5, 1-8. http://dx.doi.org/10.1371/journal.pbio.0050087 [9] Fontaneto, D. and Melone, G. (2005) Do Rotifer Jaws Grow after Hatching? Hydrobiology, 181, 213-221. http://dx.doi.org/10.1007/1-4020-4408-9_21 [10] Klusemann, J., Kleinow, W. and Peters, W. (1990) The Hard Parts (Trophi) of the Rotifer Mastax to Contain Chitin: Evidence from Studies on Brachionus plicatilis. Histochem, 94, 277-283. http://dx.doi.org/10.1007/BF00266628 [11] Silva-Briano, M. and Adabache-Ortiz, A. (2000) Brachionus Species in Aguascalientes State, México. In: Munawar, M., Lawrence, S.G., Munawar, I.F. and Malley, D.F., Eds., Aquatic Ecosystems of Mexico: Status and Scope, Ecovision World Monograph Series, Backhuys Publishers, Leyden, 203-211. [12] Silva-Briano, M., Galván-de la Rosa, R., Pérez-Legaspi, A. and Rico-Martínez, R. (2007) On the Description of Brachionus araceliae sp.nov. A New Species of Freshwater Rotifer from Mexico. Hidrobiológica, 17, 179-183. [13] Vázquez-Nin, G. and Echeverría, O. (2000) Introducción a La Microscopía Electrónica Aplicada a Las Ciencias Biológicas. Fondo de Cultura Económica, México, 168 p. [14] González, V., Guerrero, C. and Ortiz, U. (2002) Estructura química y compatibilidad de poliamidas con quitina y quitosán. Ciencia Uanl, 1, 39-47. [15] Lárez-Velásquez, C. (2006) Quitina y quitinosa: Materiales para el presente y futuro. Avances en Química, 1, 15-21. [16] Fontaneto, D., Giordani, I., Melone, G. and Serra, M. (2007) Disentangling the Morphological Stasis in Two Rotifer Species of the Brachionus plicatilis Species Complex. Hydrobiology, 583, 297-307. http://dx.doi.org/10.1007/s10750-007-0573-1 [17] Kleinow, W. (1998) Stereopictures of Internal Structures and Trophi of Rotifers. Hydrobiology, 387/388, 123-129. http://dx.doi.org/10.1023/A:1017022701517 [18] Sorensen, M. (2002) On the Evolution and Morphology of the Rotiferan Trophi, with a Cladistic Analysis of Rotifera. Journal of Zoological Systematics and Evolutionary Research, 40, 129-154. [19] Sanoamuang, L., Segers, H. and Dumont, H. (1995) Additions to the Rotifer Fauna of South-East Asia: New and Rare Species from North-East Thailand. Hydrobiology, 313/314, 35-45. http://dx.doi.org/10.1007/BF00025929