Amelia Gómez Garreta

Amelia Gómez Garreta
University of Barcelona | UB · Laboratori de Botànica, Facultat de Farmàcia, Universitat de Barcelona

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107
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Publications

Publications (107)
Article
Full-text available
Ploidy variants can be utilized to increase yield, introduce sterility, and modify specific traits with an economic impact. Despite economic importance of Saccharina species, their nuclear DNA content in different cell types and life stages remain unclear. The present research was initiated to determine the nuclear DNA content and intraindividual v...
Article
Full-text available
Seaweeds contain a wide range of secondary metabolites which serve multiple functions, including chemical and ecological mediation with microorganisms. Moreover, owing to their diverse bioactivity, including their antibiotic properties, they show potential for human use. Nonetheless, the chemical ecology of seaweeds is not equally understood across...
Article
Here we report for the first time the presence of Dictyota cyanoloma in southern California. Dictyota cyanoloma is conspicuous in harbors and bays by its distinctive bright blue‐iridescent margins. This species was originally described from Europe but subsequent studies have revealed that it represented an introduction from Australia. The current d...
Article
Nuclear DNA content of marine macroalgae is known for only about a 3% of the globally known taxa, and so far, the only available data concerning marine Antarctic macroalgae refer to the Phaeophyceae Ascoseira mirabilis and Desmarestia antarctica. As these data can be useful for species delimitation when combined with other taxonomical information,...
Article
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The seaweed diversity of the Mediterranean is still not completely known, especially in some areas of its African coasts. As an effort to complete a more detailed catalogue to fill such gap, an updated checklist of seaweeds from Algeria, based on updated literature records, is developed using as starting point the checklist of Perret-Boudouresque a...
Article
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The Atlantic-Mediterranean marine transition is a fascinating biogeographic region, but still very poorly studied from the point of view of seaweed phylogeography. Dictyota fasciola and D. mediterranea (Dictyotales, Phaeophyceae) are two currently recognized sister species that share a large part of their distribution along the Mediterranean Sea an...
Article
Deception Island is an active volcano located at the southern end of the South Shetland Archipelago, in the Antarctic Ocean. After the last eruption in 1970, benthic recolonization took place within the bay, with echinoderms being the dominant epifauna (e.g., the ophiuroid Ophionotus victoriae, the echinoid Sterechinus neumayeri and the sea star Od...
Article
Genetic affiliation, nuclear DNA content, and gamete functioning were examined in small salt marsh Fucus from three localities in western Ireland. Individuals with small and dioecious receptacles were found at all localities, but production of germlings was only evident at Locality 1. Here, the Fucus vegetation formed a morphological cline from F....
Article
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ABSTRACTDictyota cyanoloma has recently been described from the Mediterranean Sea and Macaronesia but doubt had arisen as to whether this species was truly native in Europe. The species is mainly found on non-natural substrata (harbour walls, marinas, boat hulls, etc.), strongly suggesting that it is an introduction. Molecular sequence information...
Article
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Dictyota cyanoloma, a distinctive brown algal species characterized by a blue-iridescent margin, was recently reported as an introduced species in the Mediterranean Sea (Steen et al., 2016) but little is known about its distribution dynamics, morphological plasticity and genetic structure. In the present integrative study, we evaluate its past and...
Article
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Fucus baillouviana S.G. Gmel. (l.c.) is a validly published name of uncertain nomenclatural application, as explained below. The associated taxon is usually treated as the red alga Dasya baillouviana (S.G. Gmel.) Mont. (in Webb & Berthelot, Hist. Nat. Iles Canaries 3(2,4): 165. Jan 1841). The designated lectotype, an illustration published in 1750...
Article
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El catálogo de las algas se ha realizado considerando las costas españolas subdivididas en cinco sectores, acorde a la nomenclatura de la Directiva Marco de Estrategia Marina de la UE, que considera cinco Demarcaciones Marinas: Noratlántica, Sudatlántica, Estrecho-Alborán, Levantino-Balear y Canaria. El catálogo contempla 1500 especies y taxones in...
Article
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There has been progress in novel additions of algal data to the Plant DNA C-values database during recent years; however more information is still required. Specifically, in the case of red algae (Rhodophyta), from ~6000 species described up to date, DNA C-values for only 196 species have been incorporated (~3%). This research represents the first...
Conference Paper
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El contenido de ADN nuclear de una especie, expresado como valor C, es la cantidad total de ADN nuclear de un gameto sin replicar, siendo esta medida constante e independiente del nivel de ploidía de los individuos. Este valor tiene un significado biológico fundamental y se utiliza tanto en estudios taxonómicos y filogenéticos, como biogeográficos....
Article
Padina distristromatica Ni-Ni-Win & H. Kawai and Padina pavonicoides Ni-Ni-Win & H. Kawai, two species recently described from the Mediterranean Sea, are reported for the first time from the coasts of the Iberian Peninsula, and the former also from the Balearic Islands. In this paper new data are provided for both species, especially cell dimension...
Article
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Morphological studies on the genus Dasya (Ceramiales, Rhodophyta) in the western Mediterranean revealed the existence of a collection from the Balearic Islands (eastern Spain) that differed considerably from the known species in the genus. Evidence is provided to regard it as a new species, which here is named Dasya patentissima. Affinities and div...
Article
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Cystoseira tamariscifolia thalli collected from rocky shores and rockpools in winter and summer in Southern Spain were incubated for 7 days in UV transparent cylindrical vessels under outdoor conditions. Photosynthetic activity estimated as in vivo chlorophyll a fluorescence of photosystem II, photosynthetic pigments, antioxidant activity (DPPH ass...
Article
New data on synonymy and typification of Dasya species of the western Mediterranean are provided, including: D. baillouviana (S. G. Gmel.) Mont., D. corymbifera J. Agardh, D. hutchinsiae Harv., D. ocellata (Gratel.) Harv., D. rigescens Zanardini, D. rigidula (K ü tz.) Ardiss., D. sessilis Yamada and D. punicea (Zanardini) Menegh. in Zanardini. Data...
Article
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Nuclear DNA content in gametophytes and sporophytes or the prostrate phases of the following species of Bonnemaisoniaceae (Asparagopsis armata, Asparagopsis taxiformis, Bonnemaisonia asparagoides, Bonnemaisonia clavata and Bonnemaisonia hamifera) were estimated by image analysis and static microspectrophotometry using the DNA-localizing fluorochrom...
Article
Full-text available
The seaweed diversity of the Mediterranean is still not completely known, especially in some areas of its African coasts. As an effort to complete a more detailed catalogue to fill such gap, an updated checklist of the brown seaweeds (Phaeophyceae) from Algeria, based on updated literature records, is provided using as starting point the checklist...
Article
Full-text available
Caulerpa species are marine green algae, which often act as invasive species with rapid clonal proliferation when growing outside their native biogeographical borders. Despite many publications on the genetics and ecology of Caulerpa species, their life history and ploidy levels are still to be resolved and are the subject of large controversy. Whi...
Article
The main predators of Antarctic benthic organisms are vagile invertebrates, including dense amphipod populations. Marked seasonalities of food availability drive consumers to develop opportunistic behaviors, which favors the evolution of defensive chemistry in potential prey. We used the circumpolar omnivorous amphipod Cheirimedon femoratus and a n...
Article
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Se presentan los mapas de distribucion en la Peninsula Iberica y las islas Baleares de las especies del genero Dasya, correspondientes a D. baillouviana, D. corymbifera, D. hutchinsiae, D. ocellata, D. rigescens, D. rigidula y D. sessilis.
Article
The DNA-localizing fluorochrome DAPI (4′, 6-diamidino-2-phenylindole) and chicken erythrocytes standard (RBC) were used with image analysis and static microspectrophotometry to estimate nuclear DNA contents in 14 species and varieties of Dictyotales from the Atlantic Ocean (Spain and USA) and the Mediterranean Sea (Spain). Negligible differences we...
Article
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Brown algae are critical components of marine ecosystems around the world. However, the genome of only one species of the class has so far been sequenced. This contrasts with numerous sequences available for model organisms such as higher plants, flies or worms. The present communication expands our coverage of DNA content information to 98 species...
Article
Morphologicai evidence supports the species status of the endemic Meditemanean red algal taxon Dasya rigescens. Compared to D. ocellata, which is a more widely distributed and less deep species D. rigescens shows clear morphological differences in cortication cells, pseudolaterals, spermatangial branches, cystocaps and stichidia location. The nomen...
Article
Morphological evidence supports the specific status of the endemic Mediterranean red algal taxon Dasya rigescens. Compared to D. ocellata, which is a more widely distributed and less deep species, D. rigescens shows clear morphological differences in cortication cells, pseudolaterals, spermatangial branches, cystocarps and stichidia location. The n...
Article
The distribution maps along the Iberian Peninsula and the Balearic Islands of the genus Halymenia, represented in this geographical area by H. elongata, H.floresii and H. latifolia, are given.
Article
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The distribution maps of the species of Dasya found along the coasts of the Iberian Peninsula and the Balearic Islands, D. baillouviana, D. corymbifera, D. hutchinsiae, D. oceilata, D. rigescens, D. rigidula and D. sessilis, are shown.
Article
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Rhodonema was described as a new monotypic genus of ‘Siphonigonatae’ by Martens in 1824, to include R. elegans. The name was synonymised soon to Dasya, a genus proposed by C. Agardh also in 1824, again for a sole species D. pedicellata. It was later widened by C. Agardh himself (Sp. Alg. 2(1): 116–123. 1828) to group seven species, some of which ar...
Article
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Se presentan los mapas de distribución en la Península Ibérica y las Islas Baleares de Acrodiscus vidovichii (Meneghini) Zanardini y Aeodes marginata (Roussel) F. Schmitz.
Article
The distribution maps along the Iberian Peninsula and the Balearic Islands of Acrodiscus vidovichii (Meneghini) Zanardini and Aeodes marginata (Roussel) F. Schmitz are given.
Article
Full-text available
The DNA-localizing fluorochrome 4',6-diamidino-2-phenylindole and chicken erythrocytes standard were used with image analysis and static microspectrophotometry to estimate nuclear DNA contents (I(f)) in 19 species and varieties of Fucales from the Atlantic and Mediterranean coasts of Spain. Negligible differences were round between specimens fixed...
Article
Full-text available
Carpospores isolated from Bonnemaisonia asparagoides and Bonnemaisonia clavata (Bonnemaisoniaceae, Rhodophyta) and grown in culture developed into their respective ‘Hymenoclonium’ prostrate phases. In both species, young gametophytes were initiated directly on the prostrate phase from tetrasporangia-like protuberances. Comparison of the relative fl...
Article
A detailed study of the original material of Dasya ocellata and related taxa revealed that the current concept of the species is not fully coincident with that of its basionym, Ceramium ocellatum. The original material is conserved at LD, and consist of two specimens affixed on the same voucher and these do in fact belong to two different species....
Article
A delailed study of the original material of Dasya ocellata and related taxa revealed that the current concept of the species is not fully coincident with that of its basionym, Ceramium ocellatum. The original material is conserved at LD, and consist of two specimens affixed on the same voucher and these do in fact belong to two different species....
Article
Full-text available
The similar morphology of Bonnemaisonia clavata and Bonnemaisonia asparagoides and the rarely reported vegetative and reproductive characters of the former have resulted in considerable difficulty distinguishing these two taxa as well as uncertainty concerning the taxonomic status of B. clavata. We have reassessed the relationship between these two...
Article
Full-text available
The gametophytes of Padina pavonica (L.) Thivy have received little attention in literature. Both female and predominantly male monoecious gametophytes of P. pavonica are recorded for the first time in the Iberian Peninsula. A detailed description of the morphology and the disposition of oogonia and antheridia is presented. In addition, a compariso...
Article
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The antibacterial and antifungal activity of 82 marine macroalgae (18 Chlorophyceae, 25 Phaeophyceae and 39 Rhodophyceae) was studied to evaluate their potential for being used as natural preservatives in the cosmetic industry. The bioactivity was analysed from crude extracts of fresh and lyophilised samples against three Gram-positive bacteria, tw...
Article
Full-text available
The antibacterial and antifungal activity of 82 marine macroalgae (18 Chlorophyceae, 25 Phaeophyceae and 39 Rhodophyceae) was studied to evaluate their potential for being used as natural preservatives in the cosmetic industry. The bioactivity was analysed from crude extracts of fresh and lyophilised samples against three Gram-positive bacteria, tw...
Article
The presence of Dictyota ciliolata (Dictyotales, Phaeophyceae) on the coasts of the Iberian Peninsula is reported. D. ciliolata is a tropical to subtropical species mainly distributed along the coasts of the Atlantic and Indian oceans. Although it occurs in areas next to the Mediterranean, like the Red Sea and the Atlantic coasts of Morocco, Canary...
Article
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Se presentan los mapas de distribución de las especies del género Bonnemaisonia C. Agardh (Bonnemaisoniaceae, Rhodophyta) en la Península Ibérica y las Islas Baleares: B. asparagoides (Woodward) C. Agardh, B. clavata G. Hamel y B. hamifera Hariot. We publish here the distribution maps along the Iberian Peninsula and the Balearic Islands of the taxa...
Article
We publish here the distribution maps along the Iberian Peninsula and the Balearic Islands of the taxa belonging to the genus Bonnemaisonia C. Agardh (Bonnemaisoniaceae, Rhodophyta): B. asparagoides (Woodward) C. Agardh, B. clavata G. Hamel and B. hamifera Hariot.
Article
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A new species of Dictyopteris, D. lucida Ribera Siguan, Gomez Garreta, Perez Ruzafa, Barcelo Marti & Rull Lluch, sp. nov., is described from the Iberian Peninsula and the Balearic Islands. Dictyopteris lucida is mainly characterized by mostly monostromatic blades that become bilayered adjacent to the multilayered midribs, and by the aggregation of...
Article
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Se presentan los mapas de distribución en la Península Ibérica y las Islas Baleares de cuatro táxones pertenecientes al género Dictyota Lamour. (Dictyotales, Fucophyceae): D. dichotoma (Huds.) Lamour. var. dichotoma, D. dichotoma (Huds.) Lamour. var. intricata (C. Agardh) Grev., D. linearis (C. Agardh) Grev. y D. mediterranea (Schiffn.) G. Furnari....
Article
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Se presentan los mapas de distribución en la Península Ibérica y las Islas Baleares del género Sebdenia (J. Agardh) Berthold, representado en nuestras costas por dos especies: S. dichotoma Berthold y S. rodrigueziana (Feldmann) Parkinson. The distribution maps along the Iberian Peninsula and the Balearic Islands of the genus Sebdenia (J. Agardh) Be...
Article
Lectotypes of Cystoseira adriatica Sauvageau, Cystoseira caespitosa Sauvageau, Cystoseira canariensis Sauvageau, Cystoseira meditenanea Sauvageau var. valiantei Sauvageau, Cystoseira platyclada Sauvageau, Cystoseira selaginoides Valiante var. gibraltarica Sauvageau and Cystoseira selaginoides Valiante var. polyoedematis Sauvageau were designated fr...
Article
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Se presentan los mapas de distribución en la Península Ibérica y las Islas Baleares de cuatro táxones pertenecientes al género Dictyota Lamour. (Dictyotales, Fucophyceae): D. dichotoma (Huds.) Lamour. var. dichotoma, D. dichotoma (Huds.) Lamour. var. intricata (C. Agardh) Grev., D. linearis (C. Agardh) Grev. y D. mediterranea (Schiffn.) G. Furnari....
Article
We publish here the maps of distribution along the Iberian Peninsula and the Balearic Islands of four taxa belonging to the genus Dictyota Lamour. (Dictyotales, Fucophyceae): D. dichotoma (Huds.) Lamour. var. dichotoma, D. dichotoma (Huds.) Lamour. var. intricata (C. Agardh) Grev., D. linearis (C. Agardh) Grev. and D. mediterranea (Schiffn.) G. Fur...
Article
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Dictyota mediterranea (Schiffner) G. Furnari (Dictyotaceae, Dictyotales, Phaeophyceae) fue descrita como Dilophus mediterraneus Schiffner (Schiffner, 1931) del Adriático. Posteriormente, siguiendo a Hörning et al. (1992) Furnari in Cormaci et al. (1997) propuso la combinación D. mediterranea. Esta especie ha sido citada en las últimas tres décadas...
Article
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A detailed vegetative and reproductive study of the little known species Spatoglossum solieri, using both fresh material and herbarium specimens, showed that the reproductive structures hitherto described as oogonia in S. solieri correspond, in fact, to undivided sporangia. Oogonia of S. solieri are reported and described for the first time in the...
Article
Lectotypes of Cystoseira balearica Sauvageau, Cystoseira mauritanica Sauvageau, Cystoseira mediterranea Sauvageau and Cystoseira spinosa Sauvageau were designated from the original collections of Sauvageau held in the Cryptogamic Herbarium of the Muséum national d'histoire naturelle of Paris (PC).
Article
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Eleven species of Rhodophyta are recorded for the first time from the coast of Namibia. Morphological, anatomical and reproductive features of these species as well as their local and world distributions are provided. Likewise, taxonomic comments are given for most species, including the comparison with the available data of the taxon considered or...
Article
The maps of distribution along the Iberian Peninsula and the Balearic Islands of Dictyopteris polypodioides (DC.) Lamour. and Spatoglossum solieri (Chauv. ex Mont.) Kütz., belonging to the Order Dictyotales, are given.