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| Registros recuperados: 15 | |
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| Carrasco, N; Arzul, Isabelle; Berthe, Franck; Fernandez Tejedor, M; Durfort, M; Furones, M. |
| Marteilia spp. are paramyxean parasites that affect several bivalve species of economic interest, such as Ostrea edulis and Mytilus galloprovincialis. Certain aspects of Marteilia spp., such as their life cycle and host affinity and infection dynamics, still remain unknown. The 'Delta de l'Ebre' constitutes a natural model for the study of the life cycle of the parasite Marteilia, since uninfected mussels and flat oysters immersed in the bays can become infected. This, along with the geographical and ecological characteristics of the bays, make it a very interesting location to study the Marteilia life cycle. Preliminary results concerning marteiliosis, mainly in mussels, such as prevalence dynamics, infectious periods, host affinity and host intermediate... |
| Tipo: Text |
Palavras-chave: Ebre delta bays; Host specificity; Intermediate host; Mytilus galloprovincialis; Paramyxea; Marteilia. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-3880.pdf |
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| Kruse, J.; Piątek, M.; Lutz, M.; Thines, M.. |
| Plant pathogenic smut fungi in the broader sense can be divided into the Ustilaginomycetes, which cause classical smut symptoms with masses of blackish spores being produced in a variety of angiosperms, and the Exobasidiomycetes, which are often less conspicuous, as many do not shed large amounts of blackish spores. The leaf-spot causing members of the genus Entyloma (Entylomatales, Exobasidiomycetes) belong to the latter group. Currently, 172 species that all infect eudicots are included in the genus. Vánky (2012) recognised five Entyloma species on species of Ranunculus s.lat. Two have been reported only from Ficaria verna s.lat., while three, E. microsporum, E. ranunculi-repentis, E. verruculosum, have been reported to have a broad host range,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Entyloma microsporum complex; Entyloma ranunculi-repentis complex; Host specificity; Multigene analyses; New primers; Six new taxa; Smut fungi. |
| Ano: 2018 |
URL: http://www.repository.naturalis.nl/record/655614 |
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| Bertier, L.; Brouwer, H.; Cock, A.W.A.M. de; Cooke, D.E.L.; Olsson, C.H.B.; Höfte, M.. |
| Despite its association with important agricultural crops, Phytophthora clade 8b is a poorly studied group of species. The clade currently consists of three officially described species (Phytophthora porri, P. brassicae and P. primulae) that are host-specific pathogens of leek, cabbages and Primula spp., respectively. However, over the past few decades, several other clade 8b-like Phytophthoras have been found on a variety of different host plants that were all grown at low temperatures in winter seasons. In this study, a collection of 30 of these isolates was subjected to a phylogenetic study using two loci (the rDNA ITS region and the mitochondrial cox1 gene). This analysis revealed a clear clustering of isolates according to their host plants. To verify... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Host specificity; Low temperatures; Phylogeny; Phytophthora; Species description; Vegetables. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/532058 |
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| Meij, S.E.T. van der; Berumen, M.L.; Paulay, G.. |
| A new species of cryptochirid crab, Fizesereneia panda van der Meij, is described and illustrated based on specimens collected from the scleractinian corals Lobophyllia cf. hemprichii and L. cf. corymbosa from the Farasan Banks, Farasan Islands, and the reefs off Thuwal in the Saudi Arabian Red Sea, and from Symphyllia recta from reefs in the Gulf of Oman. This is the second cryptochirid species with the Red Sea as type locality. It can be separated from its congeners by the subrectangular carapace, raised midline and the complete division of the carapace depressions, and reddish black colour pattern of these concavities in live specimens. This new species is the seventh assigned to Fizesereneia. A DNA barcode for the new species has been deposited in... |
| Tipo: Article / Letter to the editor |
Palavras-chave: DNA barcoding; Gall crabs; Host specificity; Lobophylliidae; Saudi Arabia; Scleractinia; Taxonomy; 42.74. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/533931 |
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| Mideros, M.F.; Turissini, D.A.; Guayazán, N.; Ibarra-Avila, H.; Danies, G.; Cárdenas, M.; Myers, K.; Tabima, J.; Goss, E.M.; Bernal,, A.; Lagos, L.E.; Grajales, A.; Gonzalez, L.N.; Cooke, D.E.L.; Fry, W.E.; Grünwald, N.; Matute, D.R.; Restrepo, S.. |
| Over the past few years, symptoms akin to late blight disease have been reported on a variety of crop plants in South America. Despite the economic importance of these crops, the causal agents of the diseases belonging to the genus Phytophthora have not been completely characterized. In this study, a new Phytophthora species was described in Colombia from tree tomato (Solanum betaceum), a semi-domesticated fruit grown in northern South America. Comprehensive phylogenetic, morphological, population genetic analyses, and infection assays to characterize this new species, were conducted. All data support the description of the new species, Phytophthora betacei sp. nov. Phylogenetic analyses suggest that this new species belongs to clade 1c of the genus... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Host specificity; Microsatellites; Oomycetes; Species delimitation; Tree tomato. |
| Ano: 2018 |
URL: http://www.repository.naturalis.nl/record/643330 |
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| Meij, S.E.T. van der. |
| A new species of gall crab is described from the free-living stony coral Trachyphyllia geoffroyi. Specimens were collected during field work in Lembeh Strait (Indonesia) and of Kudat (Malaysian Borneo). This new species, here named Lithoscaptus semperi sp. n., is the ninth species assigned to the genus. It can be separated from its congeners by not having the internal orbital angle extending beyond the external orbital angle, and by the stout female P2 merus with prominent distomesial projection. In addition, the carapace surface appears smooth, despite having small tubercles on the anterior half, and is without noticeable spines, other than those on the frontal margin. The distinctive carapace pattern in life is a diagnostic character in male specimens. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cospeciation; Host specificity; Indonesia; Malaysia; Thoracotremata; 42.74. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/533934 |
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| Alvarenga,Thiago M.; Costa,Valmir A.; Hansson,Christer; Carvalho,César F.. |
| Emersonella Girault, 1916 is a wasp genus including species that parasitize Chrysomelidae (Coleoptera) eggs, mainly Cassidinae. It occurs only in the Americas, and is primarily distributed in the Neotropical Region. In this paper two new species of Emersonella from the Atlantic Forest of southeastern Brazil are described and compared to similar species. Emersonella appendigastersp. nov. is characterized by an elongate last gastral tergite in female, thoracic dorsum flat, femora and tibiae yellowish in female, malar sulcus absent, frontal suture slightly down-curved laterally, eyes with scattered hairs, frons and vertex smooth, and propodeum smooth with small anteromedian foveae. Emersonella frieirocostaisp. nov. is characterized by an elongate gaster in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cassidinae; Eggs; Endoparasitoids; Host specificity; Solanaceae. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200145 |
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| Campos,Bruna Helena de; Dalbeto,Andra Carolina; Francisco,Bruno dos Santos; Romanelli,João Paulo; Munis,Rafaele Almeida; Engel,Vera Lex; Durigan,Giselda. |
| ABSTRACT Though they comprise 1 % of plant species on the planet, plant parasites are poorly known. They have been considered a threat to cultivated plants and to the conservation of host species in natural areas. Due to the complex interactions they have with their hosts, understanding their biology is fundamental to the development of conservation strategies for both parasite species and their hosts. We sampled two populations of the root parasite Scybalium fungiforme (Balanophoraceae) in seasonal tropical forest fragments to identify its host species and their functional attributes. Among the hosts, Croton floribundus seems to be preferred (68 % of parasitized plants), while four liana species were complementary hosts (32 %). Host species preference... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Balanophoraceae; Croton floribundus; Holoparasitism; Host specificity; Lianas. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100149 |
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| Arruda,Rafael; Fadini,Rodrigo Ferreira; Carvalho,Lucélia Nobre; Del-Claro,Kleber; Mourão,Fabiana Alves; Jacobi,Claudia Maria; Teodoro,Grazielle Sales; Berg,Eduardo van den; Caires,Claudenir Simões; Dettke,Greta Aline. |
| Mistletoes have been studied in temperate countries regularly because they can be pests of cultivated plants and forest plantations. In comparison with temperate habitats, little is known about the ecology of mistletoes in the Neotropics. More emphasis should be given to neotropical mistletoes because they could be important elements of plant communities, acting as key resources for pollinators, seed dispersers and herbivores. Using a combination of findings from early mistletoe studies and empirical evidence from several recent case studies, we report emerging patterns of mistletoe interactions with associated organisms and propose aims for further studies. There has been increasing interest in working with mistletoes in Brazil. Although there are some... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hemiparasites; Biological conservation; Host specificity; Host compatibility. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062012000200003 |
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| Registros recuperados: 15 | |
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