Morfologia da plântula em desenvolvimento de Astrocaryum aculeatum Meyer (Arecaceae)

Gentil, Daniel Felipe de Oliveira; Ferreira, Sidney Alberto do Nascimento

doi:10.1590/s0044-59672005000300005

Cited by 36 publications

(33 citation statements)

References 4 publications

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“…The seedling morphological descriptions found in A. maripa in this work, are similar to what was described in the palm tree Astrocaryum aculeatum Meyer (tucumã) by Gentil and Ferreira (2005), Archontophoenix alexandrae (F. Mueller) H. Wendl. and Drude by Charlo et al (2006) and in the genera Phoenix and Orbignya by Tomlinson (1990).…”

Section: Discussionsupporting

confidence: 86%

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Morphometric Characterization of Attalea maripa (Arecaceae) from Roraima State, Brazil

Passos¹,

Duarte²,

Yuyama³

2014

JAS

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We characterized three different morphotypes of inajá (Attalea maripa (Aublet.) Mart.) based on the stipe foliar insertion: columnar (morphotype M1), semi-spiraled (morphotype M2) and spiraled (morphotype M3) insertion. The present study quantified the number of leaves, the production of bunches and the DBH of the matrices and made morphometric analyses of the fruits and morphological characterization of the seedlings, for each morphotype. Bunches bearing A. maripa fruits, originating from natural regeneration, were collected from silvopastoral systems distributed throughout six counties of the state of Roraima, in order to study their morphometry. Four replicates of twenty diaspores were sown according to the Seed Analysis Rules, for seedling morphology study. The semi-spiraled morphotype presented the highest values of size and weight of fruits and seeds (diaspores). Morphotype M2 is likely to be an intermediate form of a widely variable character within A. maripa. The most frequent inflorescences amongst the studied morphotypes showed to be predominantly female, androgynous and predominantly male inflorescences were also found along with more than one type of inflorescence per individual. There is a wide variability as to the coloring of the fruits regardless of their origin. Attalea maripa seedlings did not present the typical characteristics described for the genus Attalea.

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Section: Discussionsupporting

confidence: 86%

“…Furthermore, investigations on taxonomy, ecology and propagation of species enable the elaboration of products such as palm hearts, fruits and oils, as a way of innovating the market and strengthening the Amazonian economy (Araújo, Leitão, & Mendonça, 2000;Gentil & Ferreira, 2005).…”

Section: Introductionmentioning

confidence: 99%

Morphometric Characterization of Attalea maripa (Arecaceae) from Roraima State, Brazil

Passos¹,

Duarte²,

Yuyama³

2014

JAS

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“…(1,2) This is an exceptionally tolerant species to acidic and nutrient poor soils, which is characteristic of the Amazonian region. (3) The fruit has an ovoid shape, whose fibrous mesocarp provides a high nutritional content.…”

Section: Introductionmentioning

confidence: 99%

Efeito da Astrocaryum aculeatum (Tucumã) na toxicidade da Doxorrubicina: modelo experimental in vivo

et al. 2017

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Objective: To obtain the oil of Astrocaryum aculeatum (A.a), and evaluate its genotoxicity/antigenotoxicity activities using the micronucleus test in peripheral blood cells. Methods: The oil of Astrocaryum aculeatum was obtained by hydraulic pressing. The animals used were healthy Swiss male mice, at 6-7 weeks of age; there were six per group. The genotoxic and antigenotoxic activity of concentrations were 500, 1,000 and 2,000 mg/kg per 0.5 mL (oral), followed or not followed by intraperitoneal injection of doxorubicin (0.3 mL-15 mg/kg by body weight), in addition to a negative group (water) and dimethyl sulfoxide (600 μL). Peripheral blood samples were collected 24h and 48h after treatment. Results: A statistically significant reduction was identified in the frequency of micronuclei in polychromatic cells ranging from 34.72% to 38.19% for 24-hour treatments, and from 63.70% to 66.12% for 48 hour. Conclusion: The fixed oil of tucumã presented antigenotoxic potential for the concentrations used in acute treatments. ResumoObjetivo: Obter o óleo do Astrocaryum aculeatum (A.a) e avaliar a genotoxidade/antigenotoxidade pelo teste do micronúcleo em células do sangue periférico. Métodos: O óleo da A.a foi obtido por prensagem hidráulica. Os animais foram camundongos Swiss, machos e saudáveis com 6-7 semanas de idade, 6 por grupo. Teste genotóxico e antigenotóxico as concentrações foram de 500, 1.000 e 2.000 mg/kg por 0,5 mL (via oral), seguidas ou não de injeção intraperitoneal de doxorrubicina (0,3mL -15 mg/kg por peso corporal), além do grupo negativo (água) e dimetilsufóxido (600 µL). As amostras de sangue periférico foram coletadas 24h e 48h após o tratamento. Resultados: Houve redução estatisticamente significativa na frequência de micronúcleos em células policromáticas que variou de 34,72% à 38,19% para os tratamentos de 24h, e de 63,70 à 66,12% para os de 48h. Conclusão: O óleo fixo do tucumã apresentou potencial antigenotóxico para as concentrações em tratamentos agudos.

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“…Biometric data (width and diameter) were recorded from a sample of 100 seeds (Gentil and Ferreira, 2005;Mendonça et al, 2008) of each species with the help of a digital caliper graded in millimeters (Mitutoyo model 500-321 CD-G). Mass of 1,000 seeds were also determined (Brasil, 2009).…”

Section: Plant Materialsmentioning

confidence: 99%

Seed desiccation and salinity tolerance of palm species Carpentaria acuminata, Dypsis decaryi, Phoenix canariensis, and Ptychosperma elegans

Batista¹,

Mazzini-Guedes²,

Pivetta³

et al. 2016

Aust J Crop Sci

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Desiccation-sensitive seeds lose water quickly, what is an important feature to determine their ability to tolerate periods of seasonal drought. Furthermore, excess of soluble salts on seed germination causes a reduction in the substrate water potential. The objective of this study was to assess the desiccation and salinity tolerance of seeds of four ornamental palm species. Different moisture contents were studied for seeds of Carpentaria acuminata, Dypsis decaryi, Phoenix canariensis, and Ptychosperma elegans, while five concentrations of NaCl were tested separately for C. acuminata and P. elegans. Seeds of C. acuminata and P. canariensis tolerated drying at 5% and 8% seed moisture, respectively. On the other hand, seeds of D. decaryi and P. elegans were sensitive to dehydration even at high moisture contents, 20% and 27% of seed moisture, respectively. Increase on salt concentration did not affect germination or germination rate of C. acuminata and P. elegans seeds.

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Morfologia da plântula em desenvolvimento de Astrocaryum aculeatum Meyer (Arecaceae)

Cited by 36 publications

References 4 publications

Morphometric Characterization of Attalea maripa (Arecaceae) from Roraima State, Brazil

Morphometric Characterization of Attalea maripa (Arecaceae) from Roraima State, Brazil

Efeito da Astrocaryum aculeatum (Tucumã) na toxicidade da Doxorrubicina: modelo experimental in vivo

Seed desiccation and salinity tolerance of palm species Carpentaria acuminata, Dypsis decaryi, Phoenix canariensis, and Ptychosperma elegans

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