Novidades taxonômicas em Aldama (Asteraceae-Heliantheae)

Magenta, Mara Angelina Galvão; Pirani, José Rubens

doi:10.1590/s2175-78602014000100012

Cited by 18 publications

(18 citation statements)

References 15 publications

(16 reference statements)

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“…Aldama bracteata ocorre nos Estados de Goiás e Minas Gerais (Nakajima et al 2012a), sendo coletada no PEB em campo rupestre, cerrado rupestre e cerrado, às vezes próxima ao curso d'água, com flor e/ou fruto de março a junho. Segundo Magenta & Pirani (2014) A. bracteata diferencia-se das outras espécies brasileiras de Aldama por suas folhas verde-claras e pelas brácteas involucrais de distintos tamanhos em 4-5(-6) séries. Segundo Magenta (2006) a espécie exibe grande variedade na forma da folha podendo ser lineares ou lanceoladas.…”

Section: Methodsunclassified

Heliantheae s.l. (Asteraceae) do Parque Estadual do Biribiri, Diamantina, Estado de Minas Gerais, Brasil

Marques

Nakajima

2015

Hoehnea

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-(Heliantheae s.l. (Asteraceae) from Parque Estadual do Biribiri, Diamantina, Minas Gerais State, Brazil). Heliantheae s.l., the third largest tribe in the Asteraceae family, has 48 genera and 379 species in Brazil, with 199 species restricted to this country. The tribe is very representative of Espinhaço Range flora, which presents a great diversity and endemism. This work presents the taxonomic treatment of Heliantheae s.l. of Parque Estadual do Biribiri (PEB), located in the Espinhaço Range, Diamantina municipality, Minas Gerais State. It provides an identification key, morphological description, geographic distribution, and taxonomic commentaries for each species. The tribe Heliantheae s.l. in PEB has nine genera and 16 species: Acanthospermum, Aldama, Cosmos, Dimerostemma, Galinsoga, and Melampodium (one species each); Aspilia and Bidens (three spp. each), and Calea (four spp.). The PEB has a great number of species Heliantheae s.l. compared with other areas of Minas Gerais State, and it has 12.5% of its species restricted to Minas Gerais State, revealing the importance of this park to protect the flora of Espinhaço Range.

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Section: Methodsunclassified

Heliantheae s.l. (Asteraceae) do Parque Estadual do Biribiri, Diamantina, Estado de Minas Gerais, Brasil

Marques

Nakajima

2015

Hoehnea

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“…& Panero (= Viguiera grandiflora) is widely distributed in open areas from the Cerrado, the second largest plant formation in Brazil, and can be found in different geographic regions such as North (Amazonas state), Northeast (Bahia), Midwest (Distritio Federal, Goiás, Mato Grosso do Sul and Mato Grosso states), Southeast (Minas Gerais), and South (Paraná). This species stands out in Aldama genus because, in addition to its wide distribution, it has resiniferous potential (Magenta and Pirani, 2014) and high yield of essential oils (data not published), with several compounds having proven biological activity (Leite et al, 2007;Canales et al, 2008;Santos et al, 2011). This species is characterized by intraspecific structural variations and high degree of polymorphisms in color and shape of the leaf blade since its representatives are tolerant to different light intensities (Magenta and Pirani, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…This species stands out in Aldama genus because, in addition to its wide distribution, it has resiniferous potential (Magenta and Pirani, 2014) and high yield of essential oils (data not published), with several compounds having proven biological activity (Leite et al, 2007;Canales et al, 2008;Santos et al, 2011). This species is characterized by intraspecific structural variations and high degree of polymorphisms in color and shape of the leaf blade since its representatives are tolerant to different light intensities (Magenta and Pirani, 2014). Several taxonomic studies have been conducted on Brazilian Aldama species (Bombo et al, 2012(Bombo et al, , 2014Oliveira et al, 2013;Silva et al, 2014); however, such studies have addressed only the qualitative anatomical characters of these species, but not the quantitative traits.…”

Section: Introductionmentioning

confidence: 99%

“…According to Scheiner (1993) and Stearns (1989), phenotypic plasticity relates to the capacity of an organism to change its physiology or morphology in response to environmental conditions. The species A. grandiflora, in which the organs related to survival show high phenotypic capacity (Magenta and Pirani, 2014), could have adaptive advantages when exposed to unfavorable environments (Gardoni et al, 2007) and these changes would increase the environmental stress tolerance of the plant, favoring its occupancy to new niches (Stearns, 1989;Scheiner, 1993).…”

Section: Introductionmentioning

confidence: 99%

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Can climate and soil conditions change the morpho-anatomy among individuals from different localities? A case study in Aldama grandiflora (Asteraceae)

et al. 2018

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Vegetative aerial organs are considerably more exposed to environmental conditions and can reflect the specific adaptations of plants to their local environment. Aldama grandiflora species are known to be widely distributed in Brazil; therefore, individuals from different populations of this species are thought to be exposed to different abiotic and biotic conditions. Several anatomical studies conducted on Brazilian Aldama species have mainly focused on the qualitative anatomical characters or traits of these species, but not on their quantitative traits. In this study, we evaluated whether climate and soil conditions can change the morphometry among individuals of A. grandiflora collected from six sites in the Goiás State, Brazil, by assessing their anatomical characters. Further, soil sampling was performed, and climate data were collected from all the six sites. The analysis indicated few statistical differences among the populations evaluated, showing that A. grandiflora presented consistent leaf and stem anatomical characteristics. The small morpho-anatomical differences found among individuals of the different populations evaluated, reflected the soil conditions in which these populations were grown. Therefore, environmental factors have a significant influence on the morpho-anatomy of Aldama grandiflora.Keywords: cerrado, Compositae, morphometry, phenotypic plasticity, leaf anatomy. Condições climáticas e de solo podem alterar a morfo-anatomia entre indivíduos de diferentes localidades? Um estudo de caso emAldama grandiflora (Asteraceae) ResumoOs órgãos vegetativos aéreos estão consideravelmente mais expostos às condições ambientais e podem refletir as adaptações específicas das plantas ao seu habitat. A espécie Aldama grandiflora é amplamente distribuída no Brasil e, dessa forma, indivíduos de diferentes populações podem estar expostos a diferentes condições ambientais. Vários estudos anatômicos realizados com espécies brasileiras do gênero Aldama têm abordado, principalmente, as características anatômicas qualitativas dessas espécies, mas não em suas características quantitativas. Neste estudo avaliamos se as condições climáticas e do solo podem alterar a morfometria entre os indivíduos de A. grandiflora coletados em seis populações do Estado de Goiás. Foram avaliados os caracteres anatômicos foliares e caulinares, além da amostragem do solo e coleta de dados climáticos, para os seis locais. A análise indicou algumas diferenças estatísticas entre as populações avaliadas, mostrando que A. grandiflora apresentou características anatômicas foliares e caulinares bastante consistentes.As pequenas diferenças morfo-anatômicas encontradas entre indivíduos das diferentes populações avaliadas, refletiram as condições do solo nos quais essas populações se desenvolveram. Assim sendo, fatores ambientais relacionados ao clima e condições do solo têm uma influência significativa sobre a morfo-anatomia de Aldama grandiflora.

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“…For example, some monoterpenes, such as α-pinene and β-pinene, are common among angiosperms, and quantitative variations in these compounds may be a diagnostic feature for distinguishing between species (Harborne and Turner 1984). The species Aldama arenaria and A. robusta belong to Asteraceae family (Magenta and Pirani 2014) and are easily confused in herbalized materials, being only distinguished based on pollen features (Magenta 2006 Additionally, phytochemical studies have demonstrated the biological activity of root compounds from Aldama arenaria (Tirapelli et al 2002, Hipolito et al 2009, Porto et al 2009) and A. robusta (Tirapelli et al 2002, Valerio et al 2007.…”

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confidence: 99%

Seasonal variation of the essential oil from two Brazilian native Aldama La Llave (Asteraceae) species

Oliveira

Bombo

Oliveira

et al. 2016

An. Acad. Bras. Ciênc.

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Aldama arenaria and A. robusta are morphologically similar aromatic species that have seasonal development. The yield and chemical composition of essential oils from aerial and underground vegetative organs of these species were compared to verify the production of volatile metabolites in flowering and dormant phases of development and to identify if there are unique compounds for either species. The major compound in the essential oils from A. arenaria leaves was palustrol (16.22%) and for aerial stems was limonene (15.3%), whereas limonene (11.16%) and α-pinene (19.64%) were the major compounds for leaves and aerial stems from A. robusta, respectively. The major compound for the underground organs was α-pinene, in both species and phenological stages. High amounts of diterpenes were found especially for A. arenaria essential oils. Each analyzed species presented unique compounds, which can provide a characteristic chemical profile for both species helping to solve their taxonomic problems. This study characterized for the first time the yield and essential oil composition of A. arenaria and A. robusta, which have medicinal potential, and some of the compounds in their essential oils are unique to each one and may be useful in helping the correct identification of them.

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Novidades taxonômicas em Aldama (Asteraceae-Heliantheae)

Cited by 18 publications

References 15 publications

Heliantheae s.l. (Asteraceae) do Parque Estadual do Biribiri, Diamantina, Estado de Minas Gerais, Brasil

Heliantheae s.l. (Asteraceae) do Parque Estadual do Biribiri, Diamantina, Estado de Minas Gerais, Brasil

Can climate and soil conditions change the morpho-anatomy among individuals from different localities? A case study in Aldama grandiflora (Asteraceae)

Seasonal variation of the essential oil from two Brazilian native Aldama La Llave (Asteraceae) species

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