Guerra Montes, Juan

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Guerra Montes, Juan

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Guerra Montes, Juan

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Universidad de Murcia. Departamento de Biología Vegetal

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Open Access
Lewinskya laevigata (J.E. Zetterst.) F. Lara et al. (Bryophyta, Orthotrichaceae) en Sierra Nevada (España)
(Universidad de Murcia, 2019) Guerra Montes, Juan
Lewinskya laevigata (J.E. Zetterst.) F. Lara et al., un musgo árticoalpino, muy raro en el área mediterránea, se cita por segunda vez en la Península Ibérica. La muestra ha sido recolectada en los Peñones de San Francisco (Sierra Nevada, España).
Open Access
A molecular approach to the phylogeny of the moss genus Pseudocrossidium (Pottiaceae, Bryopsida) and its taxonomic implications
(Wiley, 2022-08-12) Cano Bernabé, María Jesús; Gallego Morales, María Teresa; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
Pseudocrossidium is a genus of 21 species belonging to the Pottiaceae with the highest concentration of taxa and morphological variation found in South America. To investigate the evolutionary relationships among the species of Pseudocrossidium and other members of the Pottioideae, molecular phylogenetic reconstructions, using the nuclear ITS1‐5.8S‐ITS2, and the plastid atpB‐rbcL, trnG, and trnL‐F, has been performed because this genus has only been partially tested using molecular markers. Bayesian and maximum likelihood topologies show that the genus, as presently circumscribed, is polyphyletic. Consequently, the circumscription of Pseudocrossidium is amended and numerous taxonomic changes resulting from the molecular, morphological, and nomenclatural studies are proposed. The phylogenetic and morphologically divergent Pseudocrossidium mendozense is renamed as Gertrudiella mendozensis. Pseudocrossidium linearifolium and P. porphyreoneurum are representatives of the new genera Barbulastrum and Helicobarbula, respectively. Pseudocrossidium carinatum and P. santiagense are accommodated in a new genus Austrobarbula. Aloinella, nested in a paraphyletic Pseudocrossidium, is maintained at generic rank, apparently derived from Pseudocrossidium. Barbula integrifolia, B. riograndensis, and Tortula jaffuelii are transferred to Pseudocrossidium. The remaining species of Pseudocrossidium are maintained in this genus, pending further studies. Conflicts of the trees observed could be evidence of interspecific or intergeneric gene flow in various lineages in the Pottioideae.
Open Access
Novedades corológicas para la flora briofítica ibérica. V
(Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2013) Orgaz Álvarez, José David; Ríos Poveda, Diana; Cano Bernabé, María Jesús; Guerra Montes, Juan; Biología Vegetal
A partir del estudio de muestras recolectadas y revisadas en el marco del Proyecto Flora Briofítica Ibérica (FBI), se aportan un total de 15 novedades corológicas provinciales para España y 1 para Portugal. A destacar la segunda localidad conocida en el continente europeo de Tetrastichium fontanum (Mitt.) Cardot.
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Didymodon edentulus (Bryophyta, Pottiaceae), a new Andean species from the Cordillera Occidental in Peru
(Schweizerbart Science Publishers, 2015-05-01) Alonso García, Marta; Cano Bernabé, María Jesús; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
Didymodon edentulus J.A. Jiménez & M.J. Cano, is described and illustrated as a new Andean species from the Cordillera Occidental in north-central Peruvian departments of Ancash, La Libertad and Lima. It is characterized mainly by its appressed leaves when dry, plane margins above midleaf, smooth laminal cells, oblate and transversely thick-walled marginal basal cells, differentiated perichaetial leaves and gymnostomous capsules. Its distinction from, and relationships with some closely related species within the genus are discussed.
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A multilocus phylogeny of the moss genus Didymodon and allied genera (Pottiaceae): generic delimitations and their implications for systematics
(Wiley, 2022-03-21) Cano Bernabé, María Jesús; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
Didymodon s.l. is one of the largest genera in the moss family Pottiaceae, with about 122 species distributed in all continents. This, together with its high degree of morphological variation, has made it one of the taxonomically most challenging genera of Pottiaceae. Circumscription of Didymodon s.l. has been, and still is, controversial. To date, the only molecular study that has investigated the delimitation of the genus has been far from comprehensive (35 samples from 27 species), limited in geographical scope (mainly restricted to Europe), and based exclusively on ITS sequences. To evaluate the circumscription of Didymodon s.l. and its relationships with the allied genera Andinella, Gertrudiella, and Tridontium, we conducted phylogenetic analyses of DNA sequences for three plastid markers (atpB–rbcL, trnG, and trnL‐F) and one nuclear locus (ITS) for 335 samples representing 86 species of Didymodon s.l. (ca. 70%), and all taxa of the genera Andinella, Gertrudiella, and Tridontium. Individual markers and concatenated matrices were analyzed using maximum likelihood and Bayesian approaches. Our results indicate that Didymodon s.l. is not monophyletic, because Andinella, Gertrudiella, and Tridontium species are nested within it. Species of these four genera can be divided into eight well‐supported and morphologically distinct genera: Didymodon s.s., Geheebia, Gertrudiella, Husnotiella, Trichostomopsis, Tridontium, Vinealobryum, and Zanderella. In correspondence with the results presented, 38 new combinations, 10 new synonyms, and a new name are provided for those taxa where required, and lectotypes are designated for 13 names. A diagnostic key to the eight recognized genera is provided.
Open Access
Bryophyte diversity in the Guadiamar river basin (SW of Spain)
(Murcia: Universidad de Murcia, Servicio de Publicaciones, 2002) Cano Bernabé, María Jesús; Gallego Morales, María Teresa; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Ros Espín, Rosa María; Sin departamento asociado; Facultad de Biología
A study of the bryophyte flora of the Guadiamar river basin (southwes tern Spain) was carried out. Forty-one localities along this river and its main tributaries were sampled. A total of 123 taxa are mentioned, of which 93 are mosses, 27 liverworts and 3 hornworts. Scopelophila cataractae (Mitt.) Broth., which grows exclusively on soils rich in heavy metals, is the second record from the Iberian Peninsula
Open Access
Novedades corológicas para la flora briofítica ibérica. IX
(Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2020) Cano Bernabé, María Jesús; Guerra Montes, Juan
A partir del estudio de muestras recolectadas y revisadas principalmente en el marco del Proyecto Flora Briofítica Ibérica (FBI), aportamos un total de 27 novedades corológicas provinciales para España. Se han de destacar los hallazgos de Syntrichia handelii en Granada, una especie catalogada como amenazada en España, Bryum mildeanum, Didymodon sicculus, Neckera besseri y Physcomitrium readeri novedades para Galicia, Cataluña, Andalucía y Extremadura, respectivamente y Bryoerythrophyllum ferruginascens y Schistidium strictum cuya distribución se extiende de los Pirineos a la cordillera Cantábrica.
Open Access
The bryophyte diaspore bank in soils affected by the Aznalcóllar (Seville, SW Spain) mine disaster
(Murcia: Universidad de Murcia, Servicio de Publicaciones, 2003) Ordóñez Sánchez, Alejandro; Cano Bernabé, María Jesús; Guerra Montes, Juan; Biología Vegetal; Facultad de Biología
The tailings dam failure of the pyrite mine in Aznalcóllar released toxic tailings slurries and liquid that contaminated soils and water throug hout the Guadiamar basin. In this study we attempt to ascertain the recovery state of the zone four years after the dam failure, based on a study of the soil diaspore bank and the method of cultivating soil plots and determining the germinated species. Four localities were selected in the middle zone of the basin. Once the plots were established (five in each locality), they were divided into four groups, depending on the culture conditions. Soil samples were also taken for the analysis of heavy metals and edaphic parameters. Data seem to show that four years after the dam failure soils have started a slow recovery and hea vy metal levels are decreasing.
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Pseudocrossidium exiguum M.J.Cano & J.A.Jiménez (Pottiaceae), a new species from South America
(Taylor & Francis Group, 2015-03-26) Alonso García, Marta; Cano Bernabé, María Jesús; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
A new species of Pseudocrossidium R.S.Williams, P. exiguum M.J.Cano & J.A.Jiménez, is described from South America (Argentina, Brazil and Peru). The species is distinguished morphologically by its lingulate to oblong-ovate leaves, leaf marginal cells not or scarcely differentiated from inner, costa ending below apex or percurrent, and semicircular to elliptical in cross-section with two guide cells, scarcely differentiated perichaetial leaves and peristome of short and straight teeth. Drawings and light microscope photographs of the new species are provided. The principal distinctive characters that separate it from the nearest species of Pseudocrossidium and related genera are discussed.
Open Access
Referencias bibliográficas: Syllabus der Pflanzenfamilien. Part. 3.Bryophytes and seedless vascular plants/ A. Engler’s
(Murcia : Universidad de Murcia, Servicio de Publicaciones, 2010) Guerra Montes, Juan; Departamentos y Servicios::Departamentos de la UMU::Biología Vegetal