Leguminosae em savanas do estuário amazônico brasileiro

Silva, Wanderson Luis da Silva e; Rocha, Antônio Elielson da; Santos, João Ubiratan Moreira dos

doi:10.1590/s2175-78602014000200004

Cited by 5 publications

(5 citation statements)

References 23 publications

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“…The identification of Fabaceae and the subfamily Faboideae in this survey has been repeated for the Brazilian Amazon, being part of several qualitative and quantitative studies [14]. The presence of subfamily Faboideae was also highlighted, namely in Amazon Savannas along the estuaries between the states of Pará and Amapá [15]. Here, attention is drawn to the species Centrosema brasilianum and Zornia reticulata, as they are two new records for the state of Acre.…”

Section: Discussionmentioning

confidence: 79%

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Ruderal Plants in Cruzeiro do Sul, Acre, Brazil: Presence, Collection Status and Attributions

Souza,

Araújo,

Silva

et al. 2024

Preprint

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Ruderal plants designate native or exotic plant species that grow spontaneously in anthropized environments, being important from the ecological succession perspective. The present study aimed to identify ruderal plants that occur in an anthropized area of the Campus Floresta of the Federal University of Acre (UFAC), in the municipality of Cruzeiro do Sul, in the Southwest Amazon. Toward this end, botanical material was collected and herborized, and identified based on consultation of the specialized literature, virtual herbariums, and by comparison with the Campus Floresta Herbarium (CFCZS) collection. Finally, these data were incorporated to the referred collection, according to the usual plant systematics procedures. The results revealed 28 species and 28 genera, distributed in 14 families. The most representative families were Fabaceae, Malvaceae and Poaceae, with four species each; followed by Asteraceae with three; Cyperaceae, Rubiaceae and Amaranthaceae with two each; and the others, Plantaginaceae, Ochnaceae, Urticaceae, Verbenaceae, Iridaceae, Lamiaceae and Dennstaedtiaceae with one species each. The occurrence of predominant species in planted pastures, agricultural use, and mining area ecosystems is highlighted, such as Pteridium aquilinum (L.) Kuhn., Andropogon bicornis L., and Crotalaria micans Link.

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Section: Discussionmentioning

confidence: 79%

“…Despite the competitive nature of this plant, it contributes to ground cover, and is indicated as forage and green manure [16]. Its occurrence has also been reported in estuarine savannas, between the states of Pará and Amapá [15].…”

Section: Discussionmentioning

confidence: 99%

Ruderal Plants in Cruzeiro do Sul, Acre, Brazil: Presence, Collection Status and Attributions

Souza,

Araújo,

Silva

et al. 2024

Preprint

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“…As espécies amostradas foram coletadas conforme técnicas usuais para plantas vasculares (Peixoto & Maia, 2013). Em laboratório, foram identificadas a partir de referências bibliográficas especializadas (Barroso et al, 1999;Barbosa et al, 2013;Morokawa et al, 2013;Silva et al, 2014)…”

Section: Amostragem Da Vegetaçãounclassified

Distribuição e estrutura das espécies lenhosas em uma restinga ecotonal no litoral Amazônico Maranhense, Brasil

Belfort

Nascimento

Almeida

2021

Bol. Soc. Argent. Bot.

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Introducción y objetivos: La vegetación de restingas es un ecosistema que se extiende a lo largo de la costa de Brasil en varias extensiones, con fitofisiognomías compuestas por estratos que varían de herbáceas a arbóreas. El objetivo de este trabajo fue analizar la disposición estructural, diversidad y distribución de la comunidad leñosa de vegetación ecotonal de restinga en la costa de Maranhão, región nordeste de Brasil, con miras a la investigación dirigida al potencial de la bioprospección de especies. M&M: Para el muestreo de la vegetación se utilizó el método del punto cuadrático (50 puntos), cuyo criterio de inclusión fue Perímetro a Altura del Terreno ≥ 10cm. Se analizaron parámetros fitosociológicos, estructura comunitaria y patrón de distribución fitogeográfica. Resultados: Se identificaron 22 especies, 18 géneros y 14 familias. Las familias más representativas fueron Myrtaceae (con cuatro especies), Arecaceae, Fabaceae, Ochnaceae, Polygonaceae y Rubiaceae (dos especies, cada una). Las especies con mayores Valores de Importancia (VI) fueron Astrocaryum vulgare (20,36%), Attalea speciosa (19,40%), Himatanthus drasticus (14,72%), Chamaecrista ramosa (10,68%) y Eugenia biflora (10,27%). El índice de diversidad de Shannon fue 2,401 nat.ind-1 y la equidad de Pielou 0,749. El patrón de distribución local mostró que las especies se distribuyen aleatoriamente. La única especie con un patrón de distribución diferente fue Chamaecrista ramosa, con una distribución agregada. Conclusiones: La estructura y dinámica de la restinga ecotonal entre las costas amazónicas y nororiental indican que la zona tiene riqueza y diversidad de especies con valores similares a las restas del nordeste, destacando la necesidad de protección y valoración de plantas en áreas de restinga.

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“…Most medicinal plants are prepared as infusions or unguents [ 13 ]. Chamaecrista diphylla (L.) Greene (Fabaceae/Caesalpiniaceae) is widely distributed in the savannas and coastal areas of Mexico, Central America (Belize, Cuba, Guatemala, Caribbean Islands, Panama and Puerto Rico) and South America (Brazil, Colombia, Guyana and Venezuela) [ 14 , 15 ]. Described as a small herb, this plant grows up to 15 cm and develops branches from a single point fixed to the ground.…”

Section: Introductionmentioning

confidence: 99%

Constituents of Chamaecrista diphylla (L.) Greene Leaves with Potent Antioxidant Capacity: A Feature-Based Molecular Network Dereplication Approach

et al. 2021

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Chamaecrista diphylla (L.) Greene (Fabaceae/Caesalpiniaceae) is a herbaceous plant that is widely distributed throughout the Americas. Plants from this genus have been used in traditional medicine as a laxative, to heal wounds, and to treat ulcers, snake and scorpion bites. In the present study, we investigated the chemical composition of Chamaecrista diphylla leaves through a mass spectrometry molecular network approach. The oxygen radical absorbance capacity (ORAC) for the ethanolic extract, enriched fractions and isolated compounds was assessed. Overall, thirty-five compounds were annotated for the first time in C. diphylla. Thirty-two of them were reported for the first time in the genus. The isolated compounds 9, 12, 24 and 33 showed an excellent antioxidant capacity, superior to the extract and enriched fractions. Bond dissociation energy calculations were performed to explain and sustain the antioxidant capacity found. According to our results, the leaves of C. diphylla represent a promising source of potent antioxidant compounds.

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Leguminosae em savanas do estuário amazônico brasileiro

Cited by 5 publications

References 23 publications

Ruderal Plants in Cruzeiro do Sul, Acre, Brazil: Presence, Collection Status and Attributions

Ruderal Plants in Cruzeiro do Sul, Acre, Brazil: Presence, Collection Status and Attributions

Distribuição e estrutura das espécies lenhosas em uma restinga ecotonal no litoral Amazônico Maranhense, Brasil

Constituents of Chamaecrista diphylla (L.) Greene Leaves with Potent Antioxidant Capacity: A Feature-Based Molecular Network Dereplication Approach

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