Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte la política de Acceso Abierto del editor

Abstract:

A new chromosome count on Blechnum hastatum, together with the study of the ontogeny and development of the leptosporangia of this taxon, and of B. occidentale is carried out here. Adult leptosporangia of other taxa of the genus Blechnum, such as those of B. australe subsp. auriculatum, B. glandulosum and B. mochaenum subsp. mochaenum are also compared. In relation with the cytology of B. hastatum, 33 bivalents at diakinesis were counted, indicating that it is a diploid with a chromosome number 2n=66, which coincides with a previous count, and also places the taxon in the sequence of basic chromosome numbers known for the genus, ie x=33, which seems to be the most frequent. The ontogeny of the leptosporangia was studied for the first time in B. hastatum and B. occidentale. The sporangia initiate from a single initial epidermal cell, which may belong to the commissural area or to the indusia; they develop a long pedicel with three rows of long or short cells, short cells being the most common condition found in B. hastatum, while long cells were seen in B. occidentale. The pedicels are at their maximum length before the capsule ripens. The stomium usually bears no more than 6-8 cells in all species, with a labiate aperture. The capsules have an indurated vertical annulus, that reach the base of the capsule, and have up to 14 cells in B. australe subsp. auriculatum and B. glandulosum, up to 18 in B. hastatum and up to 21 in B. mochaenum subsp. mochaenum and B. occidentale; the number of indurate cells may be a new useful diagnostic trait in the genus.

Registro:

Documento: Artículo
Título:New chromosome count for Blechnum hastatum (Blechnaceae-Pteridophyta), with a study of the ontogeny and types of adult leptosporangia
Autor:González, G.E.; Prada, C.; Rolleri, C.H.
Filiación:Departamento de Ecología, Genética y Evolución (LACYE), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Departamento de Biología Vegetal I, Facultad de Ciencias Biológicas, Universidad Complutense, Ciudad Universitaria, 28040 Madrid, España, Spain
Laboratorio de Estudios de Anatomía Vegetal Evolutiva y Sistemática (LEAVES), Facultad de Ciencias Naturales y Museo de La Plata, 64 entre 120 y diagonal 113, B1904 DZB, La Plata, Argentina
Palabras clave:Blechnum; Chromosome numbers; Leptosporangium development; Number of cells of the annulus; Systematic; Blechnaceae; Blechnum; Blechnum glandulosum; Blechnum hastatum; Blechnum occidentale; Pteridophyta
Año:2010
Volumen:67
Número:1
Página de inicio:52
Página de fin:64
Título revista:Gayana - Botanica
Título revista abreviado:Gayana Bot.
ISSN:00165301
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00165301_v67_n1_p52_Gonzalez

Referencias:

  • Barker, M.S., Hickey, R.S., Taxonomic revision of Caribbean Adiantopsis (Pteridaceae) (2006) Annals of the Missouri Botanical Garden, 93, pp. 1-31
  • Bennert, W., Lubienski, M., Körner, S., Steinberg, M., Triploidy in Equisetum subgenus Hippochaete (Equisetaceae, Pteridophyta) (2005) Annals of Botany, 95, pp. 807-815
  • Buarque Marcon, A., Carneiro, I., Guerra, M., Cariologia de algunas espécies de pteriodófitas ocorrentes no nordeste do Brasil (2003) Acta Botânica Brasilica, 17, pp. 19-26
  • Buarque Marcon, A., Carneiro, I., Guerra, M., Variation in chromosome numbers, CMA bands and 45S rDNA sites in species of Selaginella (Pteridophyta) (2005) Annals of Botany, 95, pp. 271-276
  • Copeland, E.B., (1947) Genera Filicum, p. 245. , Waltham, Massachussetts. USA
  • Dawson, M., Brownsey, P., Lovis, J., Index of chromosome numbers of indigenous New Zealand pteridophytes (2000) New Zealand Journal of Botany, 38, pp. 25-46
  • Guerra, M., Chromosome numbers in plant cytotaxonomy: Concepts and implications (2008) Cytogenetic and Genome Research, 120, pp. 339-350
  • Jara-Seguel, P., Romero-Mieres, M., Palma-Rojas, C., Chromosome numbers of chilean Pteridophytes: First contribution (2006) Gayana Botánica, 63, pp. 115-118
  • Kramer, K.U., Blechnaceae (1990) The Families and Genera of Vascular Plants, I. Pteridophytes and Gymnosperms, pp. 60-68. , In: E. Kubitzki (ed.), Springer Verlag
  • Lellinger, D.B., A modern multilingual glossary of taxonomic pteridology (2002) Pteridologia, 3, p. 246
  • Löve, A., Löve, D., Pichi-Sermolli, R., (1977) Cytotaxonomical Atlas of the Pteridophyta, p. 398. , J. Cramer, Vaduz
  • Manton, I., (1950) Problems of cytology and evolution in the Pteridophyta, p. 316. , Cambridge University Press. London
  • Perrie, L., Brownsey, P., Lockhart, P., Largie, M., Evidence for an allopolyploid complex in New Zealand Polystichum (2003) New Zealand Journal of Botany, 41, pp. 189-215
  • Ponce, M., Pteridophyta. Catálogo de las plantas vasculares de la República Argentina, I (1996) Monographs of Systematic Botany, 60, pp. 1-79. , En: F.O. Zuloaga & O. Morrone (eds.), Missouri Botanical Garden
  • Prada, C., Rolleri, C.H., Passarelli, L.M., Morfología y distribución geográfica en Blechnum cordatum (Blechnaceae-Pteridophyta) (2008) Acta Botanica Malacitana, 33, pp. 29-46
  • Rolleri, C.H., Prada, C., Revisión de los grupos de especies del género Blechnum (Blechnaceae, Pteridophyta): El grupo Blechnum penna-marina (2006) Acta Botanica Malacitana, 31, pp. 7-50
  • Rolleri, C.R., Prada, C., Catálogo comentado de las especies de Blechnum (Blechnaceae-Pteridophyta) de Mesoamérica y Sudamérica (2006) Anales del Jardín Botánico de Madrid, 63 (1), pp. 67-106
  • Rolleri, C.H., Prada, C., Passarelli, L.M., Estudios morfológicos y taxonómicos en Blechnum (Blechnaceae - Pteridophyta): Blechnum tabulare y B. magellanicum (2008) Anales del Jardín Botánico de Madrid, 65 (2), pp. 169-175
  • Smith, A., Mickel, J., Chromosome counts for Mexican ferns (1977) Brittonia, 29, pp. 391-398
  • Smith, A.R., Pryer, K.M., Schuettpelz, E., Korrall, P., Schneider, H., Wolf, P., A classification for extant ferns (2006) Taxon, 55, pp. 705-731
  • de la Sota, E.R., Cassá de Pazos, L., Contribución al conocimiento biosistemático de las especies austrosudamericanas del género Blechnum L. (Blechnaceae- Pteridophyta) (1983) Lilloa, 36, pp. 77-83
  • de la Sota, E.R., Gouvêa Labouriou, L., Correlaciones entre esporangios y nervadura comisural en Blechnum occidentale L. (Blechnaceae) (1961) Anais da Academia Brasileira de Ciências, 33, pp. 225-239
  • Tindale, M., Roy, S., A cytotaxonomic survey of the Pteridophyta of Australia (2002) Australian Systematic Botany, 15, pp. 839-937
  • Tryon, A., Bautista, P., Araujo, S., Chromosome studies of Brazilian ferns (1975) Acta Amazonica, 5, pp. 35-43
  • Walker, T.G., A cytotaxonomic survey of the pteridophytes of Jamaica (1966) Transactions of the Royal Society of Edinburgh, 66, pp. 169-237
  • Walker, T.G., Cytotaxonomic studies of the ferns of Trinidad. The cytologicand taxonomic implications (1985) Bulletin of the British Museum of Natural History, Botany, 13, pp. 149-249
  • Windham, M., Yatskievych, G., Chromosome studies of cheilanthoid ferns (Pteridaceae, Cheilanthoideae) from the western United States and Mexico (2003) American Journal of Botany, 90, pp. 1788-1800

Citas:

---------- APA ----------
González, G.E., Prada, C. & Rolleri, C.H. (2010) . New chromosome count for Blechnum hastatum (Blechnaceae-Pteridophyta), with a study of the ontogeny and types of adult leptosporangia . Gayana - Botanica, 67(1), 52-64.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00165301_v67_n1_p52_Gonzalez [ ]
---------- CHICAGO ----------
González, G.E., Prada, C., Rolleri, C.H. "New chromosome count for Blechnum hastatum (Blechnaceae-Pteridophyta), with a study of the ontogeny and types of adult leptosporangia " . Gayana - Botanica 67, no. 1 (2010) : 52-64.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00165301_v67_n1_p52_Gonzalez [ ]
---------- MLA ----------
González, G.E., Prada, C., Rolleri, C.H. "New chromosome count for Blechnum hastatum (Blechnaceae-Pteridophyta), with a study of the ontogeny and types of adult leptosporangia " . Gayana - Botanica, vol. 67, no. 1, 2010, pp. 52-64.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00165301_v67_n1_p52_Gonzalez [ ]
---------- VANCOUVER ----------
González, G.E., Prada, C., Rolleri, C.H. New chromosome count for Blechnum hastatum (Blechnaceae-Pteridophyta), with a study of the ontogeny and types of adult leptosporangia . Gayana Bot. 2010;67(1):52-64.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00165301_v67_n1_p52_Gonzalez [ ]