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| Registros recuperados: 710 | |
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| Stertz,Sônia Cachoeira; Espírito Santo,Ana Paula do; Bona,Cleusa; Freitas,Renato João Sossela de. |
| Attempts to meet produces market demand are not always followed by research reports showing the impact of novel, intensive cropping systems on the environment, human and animal health, and eventual chemical and structural changes of plants. This work carries a comparative evaluation of the morphology and anatomy of cherry tomato fruits obtained from organic, conventional and hydroponic cropping systems. Fruits were collected at the free market in the greater Curitiba, Paraná, Brazil. For each culture method, 50 fruits their weight, diameter and volume measured. For the anatomical analysis, samples of the pericarp of ten fruits were excised and embedded in glycol methacrylate; 6-mm cuts were then obtained, stained with toluidine blue, and mounted on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Morphology; Organic; Hydroponic; Conventional. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000300015 |
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| KANDEMIR,N.; KHAN,G.; ÇELIK,A.. |
| ABSTRACT: Iris is the largest genus of family Iridaceae having 50 species with 24 endemic to Turkey. Here in this study we compared morphological, anatomical and ecological characters of two varieties of Iris unguicularis subsp. carica (Iris unguicularis subsp. carica var. carica and Iris unguicularis subsp. carica var. syriaca) from Turkey. We reported some distinctive morphological characteristics between both of the varieties like plant size, root length and width, leaf length and width, perianth tube, falls, standard fruit and bract length, falls and standards width and structure, flower colour which are of important taxonomic values. We further investigated that both the varieties are found in different localities and the differences in morphological... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Comparison; Morphology; Anatomy; Ecology. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100275 |
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| Mermudes,José Ricardo M.; Napp,Dilma Solange. |
| In order to investigate the affinities of the hitherto considered Neotropical Cleomenini genera, a detailed morphological comparative study was carried out based on representatives of their type species and other congeneric species. The results, when compared with representatives of Cleomenes Thomson and other non Neotropical Cleomenini genera together with representatives of Rhopalophorini Blanchard and Rhinotragini Thomson, show that: 1) Listroptera Audinet-Serville, 1834, Dihammaphora Chevrolat, 1859, Haenkea Tippmann, 1953, Aguassay Napp & Mermudes, 2001 and Timabiara Napp & Mermudes, 2001 form a very homogeneous group, not related to other Cleomenini, but sharing several synapomorphies with the Rhopalophorini; therefore they are herein... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cleomenini; Morphology; Rhinotragini; Rhopalophorini; Taxonomy. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262004000200016 |
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| Simone,Luiz Ricardo L.. |
| This study deals with detailed morphology and anatomy of 4 species of Scaphopoda and 5 species of protobranch Bivalvia. Both classes are traditionally grouped in the taxon Diasoma, which has been questioned by different methodologies, such as molecular and developmental. This study is developed under a phylogenetic methodology with the main concern in performing it in an intelligible and testable methodology. The analyzed Scaphopoda species came from the Brazilian coast and belong to the family Dentaliidae [(1) Coccodentalium carduus; (2) Paradentalium disparile] and Gadiliidae; [(3) Polyschides noronhensis, n. sp. from Fernando de Noronha Archipelago; (4) Gadila braziliensis]. These species represent the main branches of the class Scaphopoda. From... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scaphopoda; Bivalvia; Diasoma; Phylogeny; Morphology. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009003200001 |
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| Harterreiten-Souza,Érica Sevilha; Pujol-Luz,José Roberto. |
| Comparative morphology of the spermathecae of some species of Chrysomya Robineau-Desvoidy and Cochliomyia Townsend (Diptera, Calliphoridae). Little is known about the morphology of the chitinized structures of the spermathecae of the Calliphoridae. In this work, the spermathecae of Chrysomya albiceps Wiedemann, 1819, C. megacephala Fabricius, 1794, Cochliomyia macellaria Fabricius, 1775 and C. hominivorax Coquerel, 1858 are described and illustrated. The occurrence in one species of four spermathecae, an atypical form for blow flies, was recorded for the first time. The analysis of these structures will allow a better understanding of this group as well as provide taxonomic characters for future phylogenetic studies. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blowflies; Females; Morphology; Taxonomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000100008 |
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| GIACOSA,JUAN P. RAMOS; MORBELLI,MARTA A.; GIUDICE,GABRIELA E.. |
| The genus Lygodium Sw. is one of the few climbing ferns in the world. The spores of L. venustum Sw. and L. volubile Sw. were studied using light, scanning, and transmission electron microscopy. This work is based on herbarium material. The spores are trilete, triangular, with straight to convex sides in polar view. The equatorial diameter is 72-104 µm, and the polar diameter is 64-84 µm. The ornamentation in L. venustum is verrucate-tuberculate while in L. volubile, it is verrucate-tuberculate in the proximal face but with a few ridges on the distal face, where a micro-ornamentation constituted by verrrucae and tubercles is observed. An equatorial ridge is also present. The exospore is two-layered; in L. venustum, it is smooth in contrast with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lygodiaceae; Lygodium; Morphology; Spores; Ultrastructure. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200699 |
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| Hammen, L. van der. |
| A comparative study is made of four chelicerate classes: Apatellata (Solifugae and Pseudoscorpionida), Arachnida s. str. (both groups of Uropygi, i.e. Holopeltida and Schizomida, Amblypygi and Araneida), Scorpionida and Xiphosura. Methods, principles and terminology, adopted in this paper, correspond with those of parts I -111 of the present series of comparative studies in Chelicerata. Special attention is paid to segmentation of the body, respiratory organs, orifices of coxal glands, mouthparts, and appendages. The evolution of these structures is studied, and the relationships of the chelicerate classes and subclasses are reinvestigated and discussed. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Amblypygi; Apatellata; Arachnida; Araneida; Chelicerata; Evolution; Holopeltida; Morphology; Pseudoscorpionida; Schizomida; Scorpionida; Solifugae; Uropygi; Xiphosura.; 42.74. |
| Ano: 1986 |
URL: http://www.repository.naturalis.nl/record/317847 |
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| Silva,Maria B A; Jurberg,José; Galvão,Cleber; Barbosa,Helene S. |
| Ultrastructural analysis of the ventral region of the head - rostrum, buccula and stridulatorium sulcus - of 1st, 3rd and 5th instars of Triatoma klugi Carcavallo et al, Triatoma vandae Carcavallo et al, and Triatoma williami Galvão et al, are described in here. Morphological differences in the analyzed structures for all three Triatoma species studied were detected under scanning electron microscopy, allowing their grouping by their morphological similarities. Species-specific differences at each nymphal development stage were analyzed as well. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triatominae; Morphology; Nymphal development; T.oliveirai complex. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000100006 |
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| Guerra,Divanilde; Wittmann,Maria Teresa Schifino; Schwarz,Sergio Francisco; Souza,Paulo Vitor Dutra de; Gonzatto,Mateus Pereira; Weiler,Roberto Luis. |
| Tetraploid citrus rootstocks may present different morphological characteristics and growth when compared to diploid ones. This worked aimed at comparing morphological characteristics and height growth of diploid and tetraploid plants from the rootstocks 'Swingle' citrumelo [C. paradise Macf. x Poncirus trifoliate (L.) Raf], citrange 'Troyer' (C. sinensis (L.) Osb. x P. trifoliata) and citranges 'Fepagro C 13' and 'Fepagro C 37' [C. sinensis cv. Pêra x P. trifoliata] during twelve months. Diploid (2n=18) and tetraploid (2n=36) plants originated from the same seed were identified, cultivated and evaluated every 45 days regarding color, height, petiole length, leaf length and central leaflet width. Significant differences were observed for the evaluated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus; Morphology; Leaf color; Height; Dwarfing. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000100001 |
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| Maas, P.J.M.; Westra, L.Y.T.; Guerrero, S. Arias; Lobão, A.Q.; Scharf, U.; Zamora, N.A.; Erkens, R.H.J.. |
| A taxonomic revision of the genus Guatteria, including the former genera Guatteriella, Guatteriopsis and Heteropetalum is given. Within the genus Guatteria 177 species are recognized, 25 of which are new. Included are chapters on the history of the taxonomy of the genus, morphology, wood anatomy, karyology, palynology, chemistry, flower biology and pollination, dispersal, distribution and ecology, phylogeny and molecular studies, conservation, and uses. A synoptical key to all species is included, as well as two dichotomous keys, one for the species of Central America and Mexico, and one for the species of NE, E and SE Brazil. The species treatments include descriptions, full synonymy, geographical and ecological notes, vernacular names and taxonomic... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Annonaceae; Chemistry; Descriptions; Flower biology and pollination; Guatteria; Guatteriella; Guatteriopsis; Heteropetalum; History; Molecular studies; Morphology; Neotropics; Palynology; Phylogeny; Taxonomy; Vernacular names. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/588490 |
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| Saudray, Yves. |
| The anatomy of the masticatory part of the mandible (the pars molaris) has been studied throughout the moult/intermoult cycle in some peracacarid crustacean species, by scanning electron microscopy. Species examined were: Ligia oceanica, Sphaeroma serratum, Idotea balthica, Talitrus saltator, Hyale nilssoni, Gammarid amphipoda and the mysid Pranus flexuosus. Feeding is known to decline near moulting; this may be because the chewing surfaces become loosened before moulting. Also the surfaces are worn down and useless, and feeding ceases. Very long intermoult periods, as found in old individuals, may thus cause long periods of starvation and this could enhance the symptoms of senescence. |
| Tipo: Text |
Palavras-chave: Peracarid crustaceans; Morphology; Consequences; Indexing in process. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2047.pdf |
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| Rossetti,Dilce F.; Góes,Ana M.; Bezerra,Francisco H.R.; Valeriano,Márcio M.; Brito-Neves,Benjamim B.; Ochoa,Felipe L.. |
| Several publications have contributed to improve the stratigraphy of the Paraíba Basin in northeastern Brazil. However, the characterization and distribution of sedimentary units in onshore areas of this basin are still incomplete, despite their significance for reconstructing the tectono-sedimentary evolution of the South American passive margin. This work provides new information to differentiate among lithologically similar strata, otherwise entirely unrelated in time. This approach included morphological, sedimentological and stratigraphic descriptions based on surface and sub-surface data integrated with remote sensing, optically stimulated luminescence dating, U+Th/He dating of weathered goethite, and heavy mineral analysis. Based on this study, it... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphology; Sedimentology; Stratigraphy; Chronology; Tectonics; Paraíba Basin. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000200007 |
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| Diogo,Rui. |
| As noted Gould in his recent and last book «The structure of evolutionary theory», discourses on the high importance and frequency of evolutionary trends have consumed a great part of the research on the history of clades. Although aware that natural selection theoretically yields adaptation to immediate environments, many authors defend such trends as generalised improvements somehow conferring advantages across most or all experienced environments. The high importance given to evolutionary trends is questioned by Gould, who considers that such a high importance given to such evolutionary trends bears no necessary relationship to the relative frequency or casual weight of these events in evolution, but mainly to a major bias: trends tell histories, and... |
| Tipo: Journal article |
Palavras-chave: Evolution; Morphology; Phylogeny; Siluriformes; Teleostei. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500016 |
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| Couri,Márcia S.; Carvalho,Claudio J. B. de; Pont,Adrian C.. |
| Cordiluroides Albuquerque is a genus of Neotropical Coenosiinae (Muscidae), known from six species. The genus is here recorded for the first time from Costa Rica, on the basis of three species: C. listrata Albuquerque, 1954, C. insularis (Willliston, 1896) and C. bistriata (Wulp, 1896) sp. rev.. We provide a key for the identification of these Costa Rican species, redescribe and illustrate their external morphological characters and terminalia. C. bistriata and C. vittifera (Stein, 1904) are both considered to be good species and are re-instated from the synonymy of C. insularis. The type material of C. listrata (Museu Nacional, Rio de Janeiro), of C. insularis and C. bistriata (The Natural History Museum, London) and of C. vittifera (Museum für... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphology; Descriptions; Terminalia; Taxonomy. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262006000300003 |
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| Registros recuperados: 710 | |
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