:In this study of northern Patagonia in Argentina, we examined the annual cycle epiphyte composition and abundance on Ulva sp. with respect to intertidal elevation, season position host. We found spatial segregation most environmental gradients. Local conditions, levels, seasons portion host thalli had specific patterns algal epiphytic community. The population exhibited seasonality differential morphological attributes according elevation. Thalli highest maximum diameters were heavier...

SUMMARY The occurrence of epi‐endophyte algae in Hymenena falklandica J. G. Ag. Ex Kylin (Rhodophyta) is reported Argentina. Epicladia heterotricha (Yarish) Nielsen (Chlorophyceae) revealed a 100% prevalence occurrence, particularly the basal region host. Low (14%), moderate (28%) and high (58%) severity degrees infection were also registered for E. heterotricha. Pseudendoclonium submarinum Wille exhibited lower frequency close to 3%. developmental morphology dynamics P. investigated under...

:The emergence and evolution of the heteromorphic life history in algae has been considered as a response to selective pressures changing environments. The brown alga Leathesia marina typical history, alternating between microscopic branched filaments (gametophytic phase) macroscopic erect stage (sporophytic phase). first aim this study was describe vegetative reproductive morphologies sporophytes (macrothalli diploid L. their relationship with environmental factors an annual cycle. second...

Dictyota is a brown algae genus inhabiting tropical to warm temperate environments where it an important food source, shelter and substrate several species of invertebrates other algae. The taxonomy this troublesome, with poor delimitation doubtful records in the literature. dichotoma, type genus, was commonly accepted as cosmopolitan because inaccurate geographical distributional range consequence misidentification parts world. Recent studies molecular data revealed new understanding...

This is the first study on temporal dynamics of epiphyte communities Leathesia marina and Colpomenia sinuosa, in terms richness, diversity abundance, their relationships between hosts environmental factors. A total 31 taxa were recorded, with two sharing 64.5% epiphytic species found. The red algal group had highest abundance both diatoms presented richness. L. showed a progressive increase during warm seasons that was related to end macroscopic life stage host. They also greater specific...

The coasts located between 39°S and 41°S in the Argentinean biogeographic province have been described by impoverished seaweed assemblages, however floristic information about this region is sparse. aim of study was to survey intertidal seaweeds inhabiting three sites oceanographic system “El Rincon” (Buenos Aires, Argentina). A total 42 taxa were identified with a dominance Rhodophyta species. sandstone outcrops (SO) had 29 taxa, whereas both tidal flat (TF) oyster reefs (OR) 11 taxa....

Journal Article REVIEWS Get access Vertu du discours, discours de la vertu: littérature et philosophie morale au XVIe si´cle en France. By ULLRICH LANGER. Geneva, Droz, 1999. MAX GAUNA UNIVERSITY OF SHEFFIELD Search for other works by this author on: Oxford Academic Google Scholar French Studies, Volume LIV, Issue 3, July 2000, Pages 346–347, https://doi.org/10.1093/fs/LIV.3.346 Published: 01 2000

Journal Article REVIEWS Get access Les Mystères français imprimés une étude sur les rapports entre le théâtre religieux et l'imprimerie à la fin du Moyen Age suivie d'un Répertoire complet des mystères (ouvrages, éditions, exemplaires) 1484–1630 By GRAHAM A. RUNNALLS. (Bibliothèque XVe siècle, LXI) Paris, Champion, 1999. 198 pp. 240 F. PIERRE SERVET UNIVERSITÉ JEAN MOULIN — LYON 3 Search for other works by this author on: Oxford Academic Google Scholar French Studies, Volume LIV, Issue 4,...

The occurrence of Laminarionema elsbetiae (Ectocarpaceae, Phaeophyceae), as epi-endophyte Rhodymenia pseudopalmata (Rhodymeniales, Rhodophyta), described from Santa Isabel, Rawson, Argentina.L. grows in the host tissues forming epi-endophytic relationship epidermal, cortical and medullar layers.Epiphytic thalli L. were unbranched filaments emerging hostís surface.Reproductive structures on absent.On contrary, free cultured individuals formed different reproductive...

AbstractPeracarid crustaceans belong to the most important agglomerating macrofauna in sedimentary habitats. The amphipod Monocorophium insidiosumCRAWFORD, 1937 and tanaid Tanais dulongii AUDOUIN, 1926 are listed as invasive species. In present study, we investigated ecology of M. insidiosum T. aff. from Argentinian coast. Both were breeding under laboratory conditions study their fecundity growth. Additionally behavior potential interspecific relations have been four different experiments....

Fil: Fernandez, Carolina. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Bahia Blanca. Instituto Argentino Oceanografia. Universidad del Sur. Oceanografia; Argentina. Provincia Buenos Aires. Direccion General Cultura Educacion. Provincial Sudoeste; Argentina

The classification of Cystoclonium obtusangulum has been questioned since the species was first described by Hooker and Harvey as Gracilaria? obtusangula. objective this study to provide comprehensive taxonomic analysis obtusangulum, based on DNA sequences coupled with morphological observations made syntype specimens new collections. Sequence divergences rbcL, UPA, COI-5P, maximum-likelihood phylogenies for rbcL 18S demonstrated that identified represent a clade two distinct are distantly...

SUMMARY The occurrence of the epiphyte alga Pseudendoclonium submarinum Wille (Ulvophyceae) on Rhodymenia pseudopalmata (Lamouroux) Silva (Rhodophyta) is reported. present study describes a first line evidence an epidemiological conducted with purpose comparing both prevalence and effects algal epiphytic organisms in R. Patagonian coasts Argentina. P. infected approximately 80% thalli frequency infection was variable connection different areas host's thalli: 42% fronds presented basal...

The objective of the present study is to report for first time occurrence Spermatozopsis similis H.R. Preisig et M. Melkonian in a marine environment, describing morphology and its abundance Ría del Jabalí;Bahía Anegada, Buenos Aires, Argentina. Samples were taken monthly between June November 2006 wereobserved under light scanning electron microscope. Specimens S. showed biflagellate, fusiform andslightly spiraled cells, with flagella unequal length. was an important component phytoplankton...

We evaluated the life cycle of Leathesia marina through molecular analyses, culture studies, morphological observations, and ploidy measurements. Macroscopic sporophytes were collected from two localities in Atlantic Patagonia cultured under long-day (LD) short-day (SD) conditions. Molecular identification microscopic macroscopic phases was performed cox3 rbcL genes phylogeny assessed on basis single gene concatenated datasets. Nuclear each phase estimated DNA contents individual nuclei...