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A new gall crab species (Brachyura, Cryptochiridae) associated with the free-living coral Trachyphyllia geoffroyi (Scleractinia, Merulinidae) Naturalis
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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A new species of Fizesereneia Takeda & Tamura, 1980 (Crustacea: Brachyura: Cryptochiridae) from the Red Sea and Oman Naturalis
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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Broad host range species in specialised pathogen groups should be treated with suspicion – a case study on Entyloma infecting Ranunculus Naturalis
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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Delta de l'Ebre is a natural bay model for Marteilia spp. (Paramyxea) dynamics and life-cycle studies ArchiMer
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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Ecological aspects of Langsdorffia hypogaea (Balanophoraceae) parasitism in the Pantanal wetlands Acta Botanica
Lehn,Carlos Rodrigo; Salis,Suzana Maria; Mattos,Patrícia Póvoa.
Most studies on holoparasitic plants have focused on taxonomic or systematic issues. The objective of this study was to examine the ecological aspects of parasitism of Langsdorffia hypogaea (Balanophoraceae) in the Pantanal wetlands. Individuals of L. hypogaea were dug out by hand and the host trees were identified. Eighty-eight percent of host trees exhibited zoochory dispersal syndrome. Protium heptaphyllum and Cordiera sessilis represented 50% of the sampled trees. Both species are evergreen and are preferentially shade-tolerant species growing under the canopy of other trees. Fecal sample of collared peccaries (Pecari tajacu) had seeds from both the host tree (Protium sp.) and the parasite L. hypogaea. We therefore propose the hypothesis that P. tajacu...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Host specificity; Pantanal; Parasite; Root; Savanna.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400608
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Ecology of neotropical mistletoes: an important canopy-dwelling component of Brazilian ecosystems Acta Botanica
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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Fish, fans and hydroids: host species of pygmy seahorses Naturalis
Reijnen, B.T.; Meij, S.E.T. van der; Ofwegen, L.P. van.
An overview of the octocoral and hydrozoan host species of pygmy seahorses is provided based on literature records and recently collected field data for Hippocampus bargibanti, H. denise and H. pontohi. Seven new associations are recognized and an overview of the so far documented host species is given. A detailed re-examination of octocoral type material and a review of the taxonomic history of the alcyonacean genera Annella (Subergorgiidae) and Muricella (Acanthogorgiidae) are included as baseline for future revisions. The host specificity and colour morphs of pygmy seahorses are discussed, as well as the reliability of (previous) identifications and conservation issues.
Tipo: Article / Letter to the editor Palavras-chave: Acanthogorgiidae; Alcyonacea; Annella; Anthozoa; Hippocampus; Host specificity; Hydrozoa; Indo-Pacific; Muricella; New associations; Octocorallia; Subergorgiidae.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/409047
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Host relations and DNA reveal a cryptic gall crab species (Crustacea: Decapoda: Cryptochiridae) associated with mushroom corals (Scleractinia: Fungiidae) Naturalis
Meij, S.E.T. van der.
Mushroom corals of the Indo-West Pacific Fungiidae (Scleractinia) provide habitats for a rich associated fauna, including three species of gall crabs (Cryptochiridae). During the course of the present study gall crabs were sampled from many different fungiid hosts. Based on this ‘reversed’ approach - by studying coral symbionts from a host perspective - a previously unnoticed host specificity pattern was detected. The sampling of gall crab fauna per host coral combined with molecular analyses of H3 nDNA, 16S and COI mtDNA revealed a cryptic gall crab species closely related to Fungicola fagei. This new species, described hereafter as Fungicola syzygia sp. nov., is predominantly associated with the mushroom coral genera Cycloseris and Pleuractis, whereas...
Tipo: Article / Letter to the editor Palavras-chave: Cryptic species; Fungicola; Host specificity; Indo-West Pacific region; Tropical Eastern Pacific region; Scleractinia; 42.74.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/519714
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Invasion of Babesia gibsoni into Mouse Erythrocytes OAK
Morita, Tatsushi; Asano, Kayo; Saeki, Hideharu; Imai, Soichi; Ishii, Toshio.
Palavras-chave: Babesia gibsoni; Host specificity; Histochemistory; SCID mouse.
Ano: 1995 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/233
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NA phylogeny of Ryukyus Leucothoidae (Crustacea: Amphipoda) Naturalis
White, K.N.; Reimer, J.D..
Commensal leucothoid amphipods collected from sponges, ascidians, and coral rubble from the Ryukyu Archipelago, Japan, were investigated using nuclear 18S ribosomal DNA sequences. Analysis of sequences from 21 species in three genera supported the current morphological species designations and the separation of the family into two clades. Additionally, a possible new generic-level clade was identified and the separation of the genera Anamixis and Paranamixis was not supported. Our results demonstrate that host specificity appears to evolve rapidly in sibling species in this family.
Tipo: Article / Letter to the editor Palavras-chave: 18S rDNA; Anamixid clade; Host specificity; Japan; Leucothoid clade; 42.74.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/421560
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Phytophthora betacei, a new species within Phytophthora clade 1c causing late blight on Solanum betaceum in Colombia Naturalis
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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Root parasitism by Scybalium fungiforme Schott & Endl. is not random among host species in seasonal tropical forest Acta Botanica
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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The expansion of Phytophthora clade 8b: three new species associated with winter grown vegetable crops Naturalis
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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Two new species of Emersonella (Hymenoptera: Eulophidae: Entedoninae) from the Brazilian Atlantic Forest Rev. Bras. Zool.
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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แบคทีเรียปฏิปักษ์จากต่างชนิดพืชอาศัยในท้องถิ่นเพื่อการควบคุมโรค ชักนำภูมิต้านทานพืช การตอบสนองต่อสูตรผลิตภัณฑ์และการพัฒนาการของข้าวโพด Thai Agricultural
Sutruedee Prathuangwong; Supot Kasem; Sunanthanat Nurapak; Wilawan Chuabon; Tiyakhon Chatnaparat.
Severity of 3-diseases including bacterial leaf streak, downy mildew and Curvularia leaf spot were reduced ranging 40.4-83.0 percent evaluated at 45-day old plants that cell suspension of P38 and PCL21 showed significantly higher in disease suspension than KPS46 and copper hydroxide chemical, except SP007s (P=0.05). Regarding microbial formulation response, SP007s in talc-based formulation was the best results toward control diseases concerned and increased yield quality (2.7 percent lowest unsatisfied kernel and 17 brix sweetness) and quality (1,803.2 kg/rai). It was shown that application of indigenous antagonist with its host specificity, and formulated cells is greater effective delivery system in disease management strategies than introduced...
Palavras-chave: Corn; Plant diseases; Defense related enzyme; Powder formulation; PGPR; Host specificity; ข้าวโพด; โรคพืช; เอนไซม์; การปกป้องพืช; สูตรผลิตภัณฑ์; ผงทัลค์; ราก; แบคทีเรีย; การส่งเสริมการเจริญเติบโตของพืช; แบคทีเรียปฏิปักษ์; พืชอาศัย; จุลินทรีย์ท้องถิ่น; การชักนำภูมิต้านทานพืช; ความเฉพาะเจาะจงต่อพืชอาศัย; การเจริญเติบโต; ผลผลิต; คุณภาพ.
Ano: 2010 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4682
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