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Id: biblio-1254675
Autor: Huang, Jiafu; Huang, Axian; Lu, Luanmei; Jiang, Weikang; Zhang, Danfeng; Wu, Qici; Li, Peng; Zhong, Xiuyan.
Título: Improving the yield of Anoectochilus roxburghii by Bacillus licheniformis cultured in Agaricus bisporus industrial wastewater
Fonte: Electron. j. biotechnol;48:13-22, nov. 2020. tab, ilus, graf.
Idioma: en.
Projeto: Fujian Provincial Department of Science and Technology; . Fujian Provincial Department of Finance; . 2019 Fujian Provincial Science and Technology Commissioner Project; . Key Project of Fujian University Youth Natural Foundation; . Excellent Talents Project of Minnan Normal University of New Century; . Education Department of Fujian Province.
Resumo: BACKGROUND: There is a large amount of industrial wastewater produced by the mushroom industry during the canning processing each year, which could provide abundant carbon, nitrogen and inorganic salts for microbial growth. The aim of this study was to optimize the culture conditions for Bacillus licheniformis cultured in the Agaricus bisporus industrial wastewater to produce the agricultural microbial fertilizer. RESULTS: In this work, the maximal biomass of B. licheniformis could be obtained under the following culture conditions: 33.7°C, pH 7.0, 221 rpm shaking speed, 0.5% wastewater, 2 (v:v, %) inoculum dose, loading liquid of 60 mL/250 mL and a culture time of 24 h, and the average experimental value obtained was 1.35 ± 0.04 × 109 Obj/mL, which was within the 95% confidence interval of the predicted model (1.29­1.38 × 109 Obj/mL), and met the national microbial fertilizers' standard in China. Furthermore, the field experiment results showed that the fermentation broth of B. licheniformis could significantly improve the yield of Anoectochilus roxburghii. CONCLUSIONS: Agaricus bisporus industrial wastewater can be used to produce agricultural microbial fertilizer.
Descritores: Orchidaceae/fisiologia
Fertilizantes/microbiologia
Bacillus licheniformis/fisiologia
-Agaricus
Fermentação
Águas Residuárias
Citometria de Fluxo
Concentração de Íons de Hidrogênio
Resíduos Industriais
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-1132194
Autor: Caliskan, Omer; Kurt, Dursun; Odabas, Mehmet Serhat.
Título: Morphological Developments of Orchis purpurea Huds. Salep Orchids
Fonte: Braz. arch. biol. technol;63:e20190769, 2020. tab, graf.
Idioma: en.
Resumo: Abstract This article aims to monitor the development of Orchis purpurea Huds., salep orchids, of different sizes over a period of two years, and to investigate the relationship between the parameters studied. In the first step, the measurements taken at the time of planting and harvesting of tubers divided into eight different groups according to their size were subjected to variance and Duncan's test. In the second step, the relationship between the parameters was investigated by ignoring seedling groups. The relationship between the two variables was determined by correlation analysis. The significance of the relationships between planting and harvest data sets, and variable contributions were determined by canonical correlation analysis. Finally, leaf area prediction modeling was performed by applying multiple regression analysis. In variance analysis all parameters were significant. The canonical correlation between the first pair of canonical variables was 0.988 (p<0.01). The data obtained from the tubers made the greatest contribution to the explanatory power of the canonical variables. The leaf area model was formulized as LA (mm2) = -1237.0204 + 57.7912 × LW + 16.6211 × LL where LA is leaf area, LW is leaf width, LL is leaf length and a, b, and c are coefficients.
Descritores: Orchidaceae/anatomia & histologia
Orchidaceae/crescimento & desenvolvimento
-Análise Multivariada
Análise de Regressão
Folhas de Planta/anatomia & histologia
Responsável: BR1.1 - BIREME


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Id: biblio-830545 LILACS-Express
Autor: Bonilla Morales, Miguel Macgayver; Hernández Castañeda, Oscar Iban; Aguirre Morales, Adriana Carolina.
Título: DISTRIBUCIÓN Y PREFERENCIAS CLIMÁTICAS DE Sobralia uribei (ORCHIDACEAE): UNA ESPECIE ENDÉMICA DE SANTANDER, COLOMBIA / DISTRIBUTION AND CLIMATE PREFERENCES Sobralia uribei (ORCHIDACEAE): AN ENDEMIC SPECIES FROM SANTANDER, COLOMBIA
Fonte: Rev. luna azul;(43):128-144, jul.-dic. 2016. ilus, tab.
Idioma: es.
Resumo: En Colombia alrededor del 35% de las especies registradas son endémicas y, en algunos casos, sólo son conocidas por el espécimen o localidad tipo. No obstante, el avance de la frontera agrícola, la deforestación, la minería y otras prácticas antropogénicas, son las principales causas de su extinción. Los estudios realizados en Santander, desde la decada del sesenta, determinaron que Sobralia uribei, especie endémica de este departamento, es conocida en una localidad del municipio de Piedecuesta. El objetivo de esta investigación fue conocer la diversidad intraespecífica, distribución y estado actual de conservación de S. uribei. Por esta razón, se revisaron los herbarios locales y se realizaron salidas de campo en el departamento de Santander. Los datos obtenidos fueron procesados para análisis morfológicos y biogeográficos mediante el programa DIVA-GIS. Después de 54 años, se registra una nueva localidad en el municipio de Contratación, a una distancia en línea recta de 84 km, y un promedio de 1500-2000 msnm. Los caracteres morfológicos diferenciales fueron la altura de la planta (1-3 m), el color del ápice del labelo (blanco o lila), y el número de flores por racimo (9-11vs 7-9). La distribución potencial se concentró en los municipios de El Carmen, San Vicente de Chucurí, Hato, Galán y Zapatoca, entre los 1500 a 2600 msnm, y no donde fue colectada. La temperatura de las subpoblaciones no presenta diferencias significativas, y los inicios de la precipitación de enero a abril permiten la floración de la especie. El estatus de conservación de S. uribei se defiene en la categoría de Peligro Crítico (CR) según los criterios de riesgo propuestos por la UICN. Actualmente, la intervención antrópica es el factor principal que puede causar la extinción de las subpoblaciones existentes, por lo que estrategias de conservación in situ y ex situ son urgentes y necesarias.

In Colombia, about 35% of the recorded species are endemic and in some cases are only known specimen type or location. However, the advance of the agricultural frontier, deforestation, mining and other anthropogenic practices are the main causes of extinction. Studies in Santander, from the sixties, determined that Sobralia uribei, endemic to this department, is known in a locality in the municipality of Piedecuesta. The objective of this research was to study the intraspecific diversity, distribution and state of conservation of S. uribei. For this reason, local herbal reviewed and conducted field trips in the Department of Santander. The data obtained were processed for morphological and biogeographic analysis using DIVA-GIS program. After 54 years, a new location is recorded in the municipality of Trade, a straight line distance of 84 km, and an average of 1500 to 2000 m. The differential morphological characters were plant height (1-3 m), the apex of the lip color (white or purple), and the number of flowers per cluster (9-11 vs 7-9). The potential distribution is concentrated in the towns of El Carmen, San Vicente de Chucurí, Hato, Galán and Zapatoca, between 1500-2600 m, and not where it was collected. The temperature of subpopulations no significant differences and the beginning of the precipitation from January to April, allowing the flowering of the species. The conservation status of S. uribei is defiene in the category of Critically Endangered (CR) according to risk criteria proposed by IUCN. Currently, human intervention is the main factor that may cause the extinction of existing subpopulations, so conservation strategies in situ and ex situ, are urgent and necessary.
Descritores: Conservação dos Recursos Naturais
-Clima
Biogeografia
Orchidaceae
Limites: Humanos
Tipo de Publ: Artigo Clássico
Responsável: CO54.1 - Centro de Biblioteca e Información Científica


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Id: biblio-1132275
Autor: Kurt, Dursun.
Título: Development of Growth Models Based on Years for Salep Orchid Planted in Natural Environment
Fonte: Braz. arch. biol. technol;63:e20190768, 2020. tab, graf.
Idioma: en.
Resumo: Abstract The orchids that produced tuber are known as salep orchids and have been collected from nature for centuries as a medicinal and aromatic plant. These orchids are endangered species because of their limited vegetative and generative production possibilities. Salep orchids, seed germination has been achieved with in-vitro studies, but no source has been found regarding the development of germinated seeds over the years. In this study, Dactylorhiza euxina (Nevski) Czerep. was used as research material. Seeds that were determined to germinate in nature were observed to develop in their own environment for five years and some morphological characteristics (plant height, number of leaves, leaf length, leaf width, total weight, tuber width, and tuber weight) were determined at the end of each vegetation year. Plants that start to develop with seed germination produce one leaf and a tuber of 0.115 g in the first year. When the tubers obtained from the first year were planted again, the plants was obtained 2-3 leaves and they were formed 0.465 grams of tubers. In the third year plants bloom for the first time. The period until flowering in the plant was called maturity period and Dactylorhiza euxina (Nevski) Czerep. was found to have a 3-year maturity period. Plants produced tuber 0.850 g in the third year, 1.585 g in the fourth year and 2.522 g in the fifth year. According to the mathematical modeling, the relationship between year (Y) and fresh tuber weight (FTW) was found Y = 1.22 + (1.61 × FTW) and there was a significant relationship among year, fresh tuber weight, and total biomass (TBM). This equation Y = 1.05 + (0.76 × FTW) + (0.14 × TBM) shows us the mathematical relations of year, fresh tuber weight, and total biomass. The mathematical relations among to fresh tuber weight, total biomass, and plant height (PH) was produced Y = 1.74 - (0.11 × FTW) + (0.57 × TBM) - (0.09 × PH). R2 values were found 0.95-0.99. All R2 values and standard errors were found to be significant at the p < 0.01 level.
Descritores: Sementes/crescimento & desenvolvimento
Germinação/fisiologia
Orchidaceae/crescimento & desenvolvimento
-Sementes/fisiologia
Fatores de Tempo
Modelos Biológicos
Responsável: BR1.1 - BIREME


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Id: biblio-1041899
Autor: Gomez-Escamilla, Ivonne Nayeli; Espejo-Serna, Adolfo; López-Ferrari, Ana Rosa; Krömer, Thorsten.
Título: Distribución geográfica de angiospermas epífitas de la región terrestre prioritaria Cerros Negro-Yucaño, Oaxaca, México / Geographical distribution of epiphytic angiosperms of the priority terrestrial region of Cerros Negro-Yucaño, Oaxaca, Mexico
Fonte: Rev. biol. trop;67(1):118-131, Jan.-Mar. 2019. tab, graf.
Idioma: es.
Resumo: Resumen El conocimiento sobre la riqueza y la distribución de las plantas epifítas vasculares es aún incompleto en muchas áreas de México. Un ejemplo es la región terrestre prioritaria (RTP) Cerros Negro-Yucaño, que se ubica en el noroeste del estado de Oaxaca y pertenece a la región mixteca alta (Ñuu Savi Sukun, Ñuu vixi). Con base en la revisión de material de herbario en 12 colecciones institucionales mexicanas y en la recolección de especímenes en algunas localidades, principalmente cubiertas por bosque de encino, en 17 de los 18 municipios que incluye la RTP, se compilo un listado de las angiospermas epífitas. Se registró la presencia de 40 especies, distribuidas en 13 géneros y cinco familias; 28 taxa son endémicos de México y tres de ellos se conocen solamente de Oaxaca. Los géneros Tillandsia (18 spp.) y Peperomia (4) fueron los mejor representados en el área. El bosque de encino fue el tipo de vegetación en el cual se encontraron más epífitas (32 spp.) y también el intervalo altitudinal de 1 900 a 2 100 m (19 spp.). Plantas en floración de Artorima erubescens, Laelia albida, L. furfuracea y Prosthechea karwinskii, son utilizadas por pobladores de la región como ornamentales, durante las celebraciones religiosas de Día de Muertos y Semana Santa. Este impacto humano podría representar una amenaza para las poblaciones silvestres de estas especies en el futuro.(AU)

Abstract The knowledge on richness and distribution of epiphytic vascular plants is still incomplete in many areas of Mexico. An example is the terrestrial priority region (RTP) Cerros Negro-Yucaño, which is located in the Northwest portion of Oaxaca and belongs to the Mixteca Alta Region (Ñuu Savi Sukun, Ñuu Vixi). Based on herbarium material revision of 12 Mexican institutional collections and the collection of specimens in some localities, mainly covered by oak forest, in 17 of the 18 municipalities included in the RTP, we compiled a list of epiphytic angiosperms. The presence of 40 species, distributed in 13 genera and five families was recorded; 28 taxa are endemic to Mexico and three of them are only known from Oaxaca. The genera Tillandsia (18 spp.) and Peperomia (4) were the best represented genera in the area. Oak forest was the type of vegetation in which the most of the epiphytes were found (32 spp.), and also the altitudinal range between 1 900 and 2 100 m (19 spp.). Flowering plants of Artorima erubescens, Laelia albida, L. furfuracea, and Prosthechea karwinskii are used by the local people as ornamentals during the religious celebrations of Day of the Dead (Mexico) and Holly Week. This human impact might be a threat to the wild populations of these species in the future.(AU)
Descritores: Quercus
Orchidaceae
Bromeliaceae
Biodiversidade
-México
Responsável: BR1.1 - BIREME


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Id: biblio-1140485
Autor: Ramos Corrales, Pablo Cesar; Crivos, Marta AliciaIcon; Colares, Marta Noemí; Spegazzini, Etile Dolores; Rosella, Maria Adelaida.
Título: Relevamiento etnofarmacobotánico de plantas medicinales usadas en tres zonas diferentes del cantón Quevedo, Provincia de Los Ríos (Ecuador) / Ethnopharmacobotanical survey of medicinal plants used in three different areas of the canton Quevedo, Los Rios Province (Ecuador)
Fonte: Rojasiana;10(1):9-20, 2011. tab.
Idioma: es.
Resumo: La información sobre nombres vulgares,parte usada, indicaciones, forma de preparación y administración de las plantas utilizadas en medicina tradicional en Quevedo (Ecuador) fue recolectada mediante entrevistas, a tres "sanadores" considerados referentes de los hábitos medicinales de sus respectivas comunidades. Las especies citadas fueron organizadas en forma de tabla donde se describen sus usos terapéuticos y formas de empleo. Los datos botánicos de las plantas citadas fueron recopilados de la bibliografía. Las familias más utilizadas fueron: Asteraceae, Rubiaceae, Fabaceae, Myrtaceae, Solanaceae, Rutaceae, Apiaceae, Orchidaceae. Las plantas medicinales son el principal recurso terapéutico para un amplio sector de la población. Las afecciones más comúnmente tratadas con plantas medicinales son: infecciones de riñón y estómago, dolor de cabeza, nervios, insomnio y gripe. Aunque no es frecuente encontrar plantas de la familia Orchidaceae en la medicina tradicional, Catasetum macroglossum fue la única orquídea citada de uso en la medicina popular ecuatoriana. El conocimiento etnobotánico se transmite de una generación a otra, principalmente a través de las mujeres. La investigación cientifica puede contribuir eficazmente a preservar el patrimonio cultural.

Information about common names, part used indications, preparation and administration of the plants used in traditional medicine of Quevedo, Los Ríos province (Ecuador) was gathered from interviews to three "healers" considered leaders about the medicinal habits of their respective communities. Species cited were organized in a tabular form that describes their therapeutic uses and forms of employment. Botanical data of the mentioned plants were collected from the literature. The main families used were: Asteraceae, Rubiaceae, Fabaceae, Myrtaceae, Solanaceae, Rutaceae, Apiaceae and Orchidaceae. Conclusions: medicinal plants are the main therapeutic resource for a large segment of the population. The illnesses most commonly treated with medicinal plants are kidney and stomachal infections, headache, nervousness, insomnia, and flu. Although the use of Orchidaceae is unfrequent in traditional medicine, Catasetum macroglossum was the only orchid from Ecuatorian folk medicine. Mainly women transmit ethnobotanical knowledge from one generation to another. Scientific research can contribute effectively to preserve the cultural heritage.
Descritores: Apiaceae
Asteraceae
Rubiaceae
Solanaceae
Orchidaceae
Rutaceae
Fabaceae
-Plantas Medicinais
Etnobotânica
Equador
Medicina Tradicional
Limites: Humanos
Tipo de Publ: Entrevista
Responsável: BR1.1 - BIREME


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Id: lil-515773
Autor: Monteiro, Silvana Helena N; Silva, Manoela Ferreira Fernandes da; Secco, Ricardo de Souza.
Título: O gênero Galeandra (Orchidaceae) na Amazônia Brasileira / The genus Galeandra (Orchidaceae) in the Brazilian Amazon
Fonte: Acta amaz;39(1):21-33, mar. 2009. ilus, tab.
Idioma: pt.
Resumo: Este trabalho consiste no estudo florístico e taxonômico das espécies do gênero Galeandra Lindl. na Amazônia Brasileira. Foi confirmada a ocorrência de sete espécies: G. baueri Lindl., G. curvifolia Barb. Rodr., G. devoniana Schomb. ex Lindl., G. lacustris Barb. Rodr., G. montana Barb. Rodr., G. stangeana Rchb.f. e G. stillomisantha (Vell.) Hoenhe. Galeandra. baueri foi considerada nova ocorrência para a flora do Brasil. Apesar de G. beyrichii Rchb.f. e G. paraguayensis Cogn. não ocorrerem em áreas da Amazônia Brasileira propriamente dita, elas foram incluídas neste estudo porque ocorrem em áreas pertencentes à Amazônia Legal. São apresentadas chave de identificação, descrições e ilustrações, bem como comentários sobre a distribuição geográfica, hábitat e aspectos fenológicos para as espécies estudadas.

This paper is an inventory of species of the genus Galeandra Lindl. in the Brazilian Amazon. The occurrence of seven species was confirmed: G. baueri Lindl., G. cu bw rvifolia Barb. Rodr., G. devoniana Schomb. ex Lindl., G. lacustris Barb. Rodr., G. montana Barb. Rodr., G. stangeana Rchb.f. and G. stillomisantha (Vell.). Galeandra baueri was considered a new record for the flora of Brazil. Although G. beyrichii Rchb.f and G. paraguayensis Cogn. do not occur in the Brazilian Amazon, they were included in the paper because they occur in areas belonging to the Legal Amazon. Identification key, descriptions and illustrations are presented, as well as comments on the geographical distribution, habitat and aspects of phenology for the studied species.
Descritores: Classificação
Orchidaceae
Responsável: BR6.1 - BCS - Biblioteca de Ciências da Saúde


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Id: lil-769583
Autor: Carneiro-Silva, MQ.; Koch, AK.; Viana, PL.; Ilkiu-Borges, AL..
Título: Oncidiinae (Orchidaceae) on the great curve of the Xingu River, Pará state, Brazil / Oncidiinae (Orchidaceae) na volta grande do Rio Xingu, Pará, Brasil
Fonte: Braz. j. biol;75(3s1):222-237, Aug. 2015. graf.
Idioma: en.
Resumo: Abstract Among the studies on Orchidaceae in the Amazon, none comprised the region of the Great Curve of the Xingu River, located in the lower Xingu river. The aim of this study was to inventory and taxonomically study the species of Oncidiinae (Orchidaceae) in the Great Curve of the Xingu River, Pará state. The floristic survey was performed in the area of the Belo Monte hydroelectric plant, in the Vitória do Xingu municipality, centrally inserted in the called Great Curve of the Xingu River. Botanical collections were accomplished between June 2011 and December 2013. A total of 27 species of Oncidiinae, distributed in 15 genera, was inventoried in the study area. Notylia Lindl. and Trichocentrum Poepp. & Endl. were the richest genera, with five and four species, respectively, followed by Erycina Lindl., Ionopsis Kunth, Lockhartia Hook., Macradenia R.Br., and Ornithocephalus Hook., with two species each. The remaining eight genera are represented by a single species each in the study area. Morphological descriptions, a key for taxonomic identification, illustrations, and comments on distribution, ecology, phenology and morphology are provided for all inventoried species.

Resumo Entre os estudos com Orchidaceae na Amazônia, nenhum compreende a região da Volta Grande do rio Xingu, localizada no baixo Xingu. O objetivo deste estudo foi inventariar e estudar taxonomicamente as espécies de Oncidiinae (Orchidaceae) na Volta Grande do rio Xingu, estado do Pará, Brasil. O levantamento florístico foi realizado na área da Usina Hidrelétrica de Belo Monte, no município de Vitória do Xingu, inserido centralmente na chamada Volta Grande do Xingu. Foram realizadas coletas botânicas entre junho de 2011 e dezembro de 2013. Na área de estudo, foram inventariadas 27 espécies de Oncidiinae, distribuídas em 15 gêneros. Notylia Lindl. e Trichocentrum Poepp. & Endl. foram os mais ricos, com cinco e quatro espécies respectivamente, seguidos por Erycina Lindl., Ionopsis Kunth, Lockhartia Hook., Macradenia R.Br., e Ornithocephalus Hook., com duas espécies cada. Os oito gêneros restantes estão representados na área de estudo por uma única espécie. São fornecidas descrições morfológicas, chave taxonômica para identificação, ilustrações e comentários sobre distribuição, ecologia, fenologia e morfologia para todas as espécies inventariadas.
Descritores: Biodiversidade
Orchidaceae/classificação
-Brasil
Ecossistema
Orchidaceae/anatomia & histologia
Orchidaceae/fisiologia
Dispersão Vegetal
Responsável: BR1.1 - BIREME


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Id: biblio-839157
Autor: Eburneo, L; Ribeiro-Júnior, N G; Karsburg, I V; Rossi, A A B; Silva, I V.
Título: Anatomy and micromorphometric analysis of leaf Catasetum x apolloi Benelli & Grade with addition of potassium silicate under different light sources / Anatomia e análise micromorfométrica foliar de Catasetum x apolloi Benelli & Grade com adição de silicato de potássio em diferentes fontes de luz
Fonte: Braz. j. biol;77(1):140-149, Jan-Mar. 2017. tab, graf.
Idioma: en.
Resumo: Abstract The aim of this study was to compare vitroplants Catasetum x apolloi grown under natural light and artificial light and different concentrations of potassium silicate, providing data on the anatomical differentiation that aids the acclimatization process of this species. Plants from in vitro seeding were used; 5 protocorms of approximately 0.5 cm were inoculated into vials with a capacity of 500 mL containing 100 mL of alternative culture medium plus potassium silicate (0.0, 0.5; 1.0 mL L–1), pH adjusted to 5.5 ± 0.5 and gelated with 4GL–1 agar before the autoclaving process. Cultures were maintained under natural light (TNE) and artificial light (TAE) for 90 days, and micromorphometric analysis was performed for polar and equatorial diameter, density and stomatal index, blade thickness in the central rib, and secondary veins. Applications in K2SiO4 alternative medium provided the following: elongation of the hypodermis, thicker mesophyll, and more prominent midrib; elipptical guard cells; formation of epistomatal chamber; and lower stomatal density and stomatal with lower equatorial and polar diameters. The conditions that favored the acclimatization were lower light intensities and lower potassium silicate doses.

Resumo O objetivo desse trabalho foi comparar vitroplantas de Catasetum x apolloi cultivadas sob luz natural e luz artificial e diferentes concentrações de silicato de potássio, fornecendo dados sobre diferenciação anatômica que auxiliem no processo de aclimatação dessa espécie. Utilizou-se plantas provenientes da semeadura in vitro, 5 protocormos de aproximadamente 0,5 cm foram inoculados em frascos com capacidade para 500 mL contendo 100 mL de meio de cultura alternativo, acrescido de silicato de potássio (0,0; 0,5; 1,0 mL L–1), pH ajustado para 5,5 ±0,5 e gelificado com 4gL–1 de ágar antes do processo de autoclavagem. As culturas foram mantidas sob luz natural (TAA) e luz artificial (TAN) por 90 dias, e feitas análises micromorfométricas (diâmetro polar e equatorial, densidade e índice estomático, espessura do limbo na nervura central e nervuras secundárias). As aplicações de K2SiO4 em meio alternativo, propiciaram: alongamento da hipoderme; mesofilo mais espesso e nervura central mais proeminente; células guardas elípticas; formação de câmaras supraestomáticas; menor densidade estomática e estômatos com menores diâmetros equatorial e polar. As condições que podem favorecer a aclimatação são menores intensidades de luz e menores doses de silicato de potássio.
Descritores: Potássio/análise
Folhas de Planta/anatomia & histologia
Orchidaceae/fisiologia
Luz
-Potássio/farmacologia
Técnicas In Vitro
Silicatos/análise
Folhas de Planta/química
Aclimatação/fisiologia
Tipo de Publ: Estudo Comparativo
Responsável: BR1.1 - BIREME


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Id: lil-595553
Autor: Storti, Eliana Fernandez; Braga, Pedro Ivo Soares; Storti Filho, Atilio.
Título: Biologia reprodutiva de Cattleya eldorado, uma espécie de Orchidaceae das campinas amazônicas / Reproductive biology of Cattleya eldorado, a species of Orchidaceae from the Amazonian white sand campinas
Fonte: Acta amaz;41(3):361-368, 2011. ilus, tab.
Idioma: pt.
Resumo: As Orchidaceae são muito apreciadas por suas flores exóticas e exuberantes. É a maior família de plantas apresentando mais de 24000 espécies, o que denota uma alta diversidade de formas e adaptações a diferentes ambientes, como também para atração, engano e manipulação de visitantes na realização da polinização cruzada. Cattleya eldorado ocorre em áreas de campinas, que são formações vegetais típicas da região amazônica, que se encontram sob forte ação antrópica. Este trabalho tem como um de seus principais objetivos conhecer parte dos processos biológicos de C. eldorado fornecendo subsídios para conservá-la e manejá-la em seu habitat natural. Este estudo foi desenvolvido na Reserva Biológica de Campina, de 2000 a 2006, durante a sua floração. C. eldorado é uma espécie epifítica que apresenta a síndrome de melitofilia, estando adaptada ao seu polinizador, a abelha Eulaema mocsaryi, que reconhece suas flores pelo odor e pelo estímulo visual através de sua coloração e reflexão de luz ultravioleta. C. eldorado é uma espécie autocompatível, embora necessite de um agente polinizador para a transferência do polinário até sua deposição na cavidade estigmática da flor.

The orchid plants are highly prized for their lush exotic flowers. It is the largest plant family with more than 24000 species, which indicates a high diversity of forms and adaptations to different environments, including the capacity to attract, deceive and manipulate visitors involved in cross-pollination. Cattleya eldorado occurs in areas of white sand campinas, a typical vegetation type of the Amazon region, which is under strong anthropogenic pressure. This work's main objectives to know the biological processes of C. eldorado providing subsidies to maintain and manage it in its natural habitat. This study was conducted from 2000 to 2006 in the Campina Biological Reserve, during its flowering period. C. eldorado is an epiphytic orchid species that has the melittophyly syndrome and is adapted to its pollinator, the bee Eulaema mocsaryi recognizing their flowers by smell and by visual stimuli, through their color and reflection of ultraviolet light. C. eldorado is self-compatible, even if it requires a pollinating agent for the transfer of the pollinarium until its deposition in the stigmatic cavity of the flower.
Descritores: Abelhas
Orchidaceae
Responsável: BR6.1 - BCS - Biblioteca de Ciências da Saúde



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