منابع مشابه
Cytotaxonomy of the Maculata subcomplex (Hemiptera, Triatominae).
aLaboratório de Biologia Celular, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas – IBILCE, Universidade Estadual Paulista “Júlio de Mesquita Filho” – UNESP, Rua Cristóvão Colombo, 2265, Jardim Nazareth, CEP 15054-000, São José do Rio Preto, SP, Brazil bLaboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz – FIOCRUZ,...
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The material studied consisted of laboratory-bred specimens of 2 species of Prostriata and 8 species of Metastriata. Jxodes ricinus and / . hexagonus (Prostriata) have XX:XY sex-determining mechanisms with diploid complements of 28 and 26 acrocentric chromosomes respectively. All the species of Metastriata studied have XX:XO sex-determining mechanisms with diploid complements of 21 and 22 chrom...
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The large Neotropical family Bromeliaceae presents an outstanding example of adaptive radiation in plants, containing a wide range of terrestrial and epiphytic life-forms occupying many distinct habitats. Diversification in bromeliads has been linked to several key innovations, including water- and nutrient-impounding phytotelmata, absorptive epidermal trichomes, and the water-conserving mode o...
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Aerial parts of 38 taxa, distributed in 21 genera and all three subfamilies of the Bromeliaceae have been examined for the presence of betaines. Glycinebetaine and trigonelline were isolated from all the plants studied, although the yields of both compounds were low. For glycinebetaine, values (based upon dry weight) varied from 0.0004% for Pitcairnia corallina to 0.087% for Tillandsia usneoide...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: CYTOLOGIA
سال: 1971
ISSN: 0011-4545,1348-7019
DOI: 10.1508/cytologia.36.237