Identificação de plantas invasoras de cultura da região de Manaus

Albuquerque, José Maria de

doi:10.1590/1809-43921980101047

Cited by 10 publications

(10 citation statements)

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(1 reference statement)

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“…Um levantamento de plantas invasoras e pioneiras em um roçado abandonado (4,5 ha) e em um cultivo de feijão (1 ha) na região de Manaus, revelou por exemplo que existem 54 espécies de plantas vasculares, muitas delas visitadas por abelhas (Albuquerque, 1980). Também as análises do pólen coletado por operárias de Apis mellifera revelam que um bom número de espécies de plantas é visitado: 79 no Maranhão (Kerr et al, 1987) e 126 em Rondônia (Marques-Souza et al, 1993).…”

Section: Resultsunclassified

Abelhas africanizadas Apis mellifera scutellata Lepeletier, 1836 (Hymenoptera: Apidae: Apinae) exploram recursos na floresta amazônica?

Oliveira

Cunha

2005

Acta Amaz.

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RESUMOAs abelhas africanas (Apis mellifera scutellata) foram trazidas para o Brasil na década de 1950 e, por acidente, cruzaram-se com outras subespécies de abelhas melíferas européias introduzidas no século XIX. Isso proporcionou o surgimento de híbridos com características predominantes das abelhas africanas, tais como rusticidade e maior capacidade de enxamear, o que lhes permitiu uma rápida adaptação e expansão por quase todo continente americano. Até hoje existem controvérsias se essas abelhas, denominadas africanizadas, causam algum impacto sobre a fauna de abelhas nativas. Nas Américas, as africanizadas estão restritas a regiões de baixas altitudes e de invernos amenos; no Brasil, ocorrem principalmente em áreas urbanas e formações vegetacionais abertas ou adulteradas, sendo dificilmente vistas ou coletadas no interior de florestas densas como a amazônica. Diante dessa observação, diversas iscas foram disponibilizadas no interior de fragmentos de florestas e de florestas contínuas na Amazônia central, para testar se operárias de abelhas africanizadas seriam capazes de penetrar nos mesmos. Nenhuma operária foi vista visitando as iscas na floresta contínua ou mesmo nos fragmentos de floresta, ocorrendo visitas somente nas áreas desmatadas e capoeiras próximas. Esse resultado, além de indicar a inexistência de competição por recursos com as abelhas nativas no interior da floresta amazônica, também indica que uma apicultura em grande escala na região seria inviável, uma vez que a floresta não é sequer visitada por essas abelhas. PALAVRAS-CHAVEespécies introduzidas, apicultura, competição por recursos. Do Africanized honeybees explore resources in the

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Section: Resultsunclassified

Abelhas africanizadas Apis mellifera scutellata Lepeletier, 1836 (Hymenoptera: Apidae: Apinae) exploram recursos na floresta amazônica?

Oliveira

Cunha

2005

Acta Amaz.

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“…America, and occurs in Brazil, Colombia, Guyana and Venezuela (Ewan, 1962). The tree is found as colonizers of man-made clearings and natural gaps in forests and in abandoned or active agricultural areas in Brazilian Amazonia (Albuquerque, 1980); is commonly known in Brazil as "lacre", and the stem bark is used in popular medicine as a laxative and in the treatment of various types of dermatitis (Correa, 1926). Quinoids (Gonzales et al, 1980;Delle Monache et al, 1980;Botta et al, 1986), xanthones (Botta et al, 1986), prenylated benzophenones, and benzocoumarins have been reported previously from V. guianensis (Seo et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Chemical composition, antibacterial and antioxidant activities of the essential oil from Vismia guianensis fruits

Silvestre¹,

Moraes²,

Lins³

et al. 2012

Afr. J. Biotechnol.

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In recent decades, the essential oils of plants have drawn great interest as sources of natural products. Essential oil from the fruits of Vismia guianensis was tested for its chemical constituents and antimicrobial and antioxidant activities. Gas chromatography/mass spectrometry (GC-MS) analysis of the essential oil revealed the presence of 38 sesquiterpenoids. The major components were βcaryophyllene (25.8%), α-copaene (13.1%), and δ-cadinene (11.6%). Antimicrobial activities were measured against six species of Gram negative and seven species of Gram positive bacteria and showed antibacterial activity against the human pathogenic Gram-positive bacteria Staphylococcus lentus with minimum inhibitory concentration (MIC) values of 78 μg/ml. The antioxidant activity of the essential oil was evaluated using the beta carotene/linoleic acid assay and showed antioxidant activity.

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“…Such properties are attributed to the dillapiol, the major component of the spiked pepper essential oil, whose yield in the laboratory extraction process can range from 1.2% to 3.4% (Maia et al, 2000). The spiked pepper presents a relatively short vegetative cycle, high tolerance to low-fertility acid soils, facility of vegetative propagation and a wide adaptation capacity to different environments (Albuquerque, 1980;Silva, 1993;Leme et. al., 1998;Francis, 2003).…”

Section: Palavras-chavementioning

confidence: 99%

Spiked pepper: selection of clones toward cropping on the edaphoclimatic conditions from Belém, Brazil

Gaia¹,

Mota²,

Conceição³

et al. 2010

Hortic. Bras.

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Spiked pepper presents a high yield of essential oil with useful biological properties for human health and agriculture. In order to evaluate the morphoagronomic variability and, afterwards, to select genotypes for plant breeding and cultivation, thirteen clones were propagated. Thus, spiked pepper cuttings were rooted under greenhouse, transferred to a nursery and, afterwards, planted at the experimental area. The evaluations were carried out in two harvest seasons. The evaluated morphoagronomic traits were number of leaves per branch, leaf length, leaf width, diameter of the oldest branch, plant height, number of orthotropic branches, number of plagiotropic branches, internode length, fresh and dry matter, yield of essential oil and dillapiole content. The analysis of variance and the Scott-Knott test were utilized for data analysis and comparisons among clones and parentals were carried out through genetic and experimental variation coefficients. Fresh matter (first season), number of orthotropic branches and diameter of the the oldest branch (second season) presented variability. The Scott-Knott test detected variability for fresh matter, dillapiole content (first season), diameter of the oldest branch and number of orthotropic branches (second season). The yield of essential oil and the dillapiole content were higher for the clones than for the parentals. In conclusion, the clones showed adaptability to the soil and climate conditions of Belém, Pará State, Brazil; the harvest time influenced the oil yield and the dillapiole content; the variance analysis evidenced uniformity and productivity for the evaluated clones, suggesting they can be recommended for cultivation on small-scale production systems in this location.

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Identificação de plantas invasoras de cultura da região de Manaus

Cited by 10 publications

References 1 publication

Abelhas africanizadas Apis mellifera scutellata Lepeletier, 1836 (Hymenoptera: Apidae: Apinae) exploram recursos na floresta amazônica?

Abelhas africanizadas Apis mellifera scutellata Lepeletier, 1836 (Hymenoptera: Apidae: Apinae) exploram recursos na floresta amazônica?

Chemical composition, antibacterial and antioxidant activities of the essential oil from Vismia guianensis fruits

Spiked pepper: selection of clones toward cropping on the edaphoclimatic conditions from Belém, Brazil

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