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Valuation of the Aroeira (Myracrodruon urundeuva Allem?o): perspectives on conservation
Monteiro, Julio Marcelino;Araújo, Elcida de Lima;Amorim, Elba Lúcia Cavalcanti;Albuquerque, Ulysses Paulino de;
Acta Botanica Brasilica , 2012, DOI: 10.1590/S0102-33062012000100014
Abstract: assigning an economic value to a given environmental asset has helped conservation proposals, and valuing these assets at levels comparable to market rates facilitates the establishment of environmental policies. thus, this research aimed to assess the value of the species myracrodruon urundeuva allem?o, using the method of contingent valuation to determine the maximum willingness to pay of frequent visitors to the caruaru fair, located in northeastern brazil. our results show that most interviewees agreed to participate in proposals to support species conservation, although the average willingness to pay (wtp) was relatively low compared to other surveys conducted in brazil. however, a significant number of the interviewees had exceptionally low monthly incomes. another relevant aspect of this research was the high number of people (98.5% of the informants) who were concerned about biodiversity conservation; many interviewees stated that the preservation of biodiversity is not a duty exclusive to the government or the people but rather a collective responsibility. therefore, these findings may encourage the provision of public proposals for environmental conservation, along with other surveys or government actions funded by a society that has the willingness to pay for them. this study is the first economic valuation of a caatinga species, many of which are under threat of extinction.
Morphology, anatomy and histochemistry of the leaves of Myracrodruon urundeuva Allem o (Anacardiaceae)  [cached]
Osmar Nascimento-SILVA,Débora de Souza LEITE,Luciana Aparecida BERNARDES,Jose Geraldo Antunes de PAIVA
Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas , 2011,
Abstract: El "aroeira" (Myracrodruon urundeuva Allem o) es una especie de árbol tropical con una distribución geográfica limitada en América del Sur, se encuentra en formaciones más secas, como el Cerrado y Caatinga. Empíricamente se usa en la cicatrización, como anti-inflamatorio y otros. En este estudio hemos utilizado las hojas maduras y ampliadas a partir de los nodos de tercero y cuarto. Para los estudios de venación y la morfología, la anatomía y los procedimientos histoquímicos fue el laboratorio de anatomía vegetal de costumbre. Los estudios de venación y morfología, anatomía e histoquímica fueron realizados por el laboratorio habitual de Anatomía vegetal o por las técnicas usuales de la anatomía vegetal. Los folíolos son elípticos con ápice agudo, base oblicua margen de ángulo obtuso todo ligeramente ondulado. El indumento es seríceo con tricomas de hoja caduca. La consistencia de la lámina es papirácea. Muestra el patrón de venación rectinervia, tipo pinnadas basan por lo general asimétrica y oblicua. La cutícula de los folíolos, es más delgada en la epidermis inferior de la epidermis superior, parénquima en empalizada con una capa de células y el parénquima esponjoso con tres capas de células idioblastos con drusas de oxalato de calcio, tricomas tectores multicelulares simples con dos o más células en la base se observado a ambos lados del folíolo. El análisis histoquímica reveló la presencia de gránulos de almidón, cristales de oxalato de calcio, compuestos grasos, resinas, fenoles y alcaloides. Los datos estructurales obtenidos en este estudio pueden ayudar en la caracterización ecofisiológica de la especie y aportar pruebas para la identificación de los medicamentos herbarios producidos a partir de ese órgano de la planta.
The effects of seasonal climate changes in the caatinga on tannin levels in Myracrodruon urundeuva (Engl.) Fr. All. and Anadenanthera colubrina (Vell.) Brenan
Monteiro, Júlio M.;Albuquerque, Ulysses P.;Lins Neto, Ernani M.F.;Araújo, Elcida L.;Albuquerque, Miracy M.;Amorim, Elba L.C.;
Revista Brasileira de Farmacognosia , 2006, DOI: 10.1590/S0102-695X2006000300010
Abstract: the influence of seasonal climatic changes on tannin concentrations was examined in two caatinga (semi-arid) plant species (myracrodruon urundeuva (engl.) fr. all. and anadenanthera colubrina (vell.) brenan). the folin-ciocalteau method was used to quantify total phenols, and the casein precipitation method was used for tannins. in general, there is a close relationship between tannin levels and rainfall, although species seem to adopt different strategies of tannin compound production in response to periods of drought and rainfall in the caatinga.
Germina??o e vigor de sementes de Myracrodruon urundeuva Allem?o em diferentes substratos e temperaturas
Guedes, Roberta Sales;Alves, Edna Ursulino;Gon?alves, Edilma Pereira;Colares, Pedro Nóbrega Quintas;Medeiros, Matheus Serrano de;Viana, Jeandson Silva;
Revista árvore , 2011, DOI: 10.1590/S0100-67622011000600003
Abstract: myracrodruon urundeuva allem?o belongs to anacardiaceae family, whose plants can be medicinal, it can be used in leather tanning industry, tree planting in urban areas because of its great mechanic resistance wood. therefore, the objective of this work was to determine methodologies proper to conduction of tests of germination and vigor of m. urundeuva seeds. the temperatures utilized were 25, 30 and 35°c (constant) and 20-30°c (alternate), together with the substrates sand, vermiculite, bioplant?, plantmax?, blotting paper, with seeds upon the paper and between paper sheets and towel paper, in the form of paper rolls. the experimental design was completely randomized, with four replicates of 25 seeds. the following parameters were analyzed: germination percentage, germination speed index, first germination count and length and dry mass of seedlings. the temperature of 30oc and sand substrate are indicated for the conduction of the germination tests and vigor of the m. urundeuva seeds.
Efeito da luz da temperatura na germina??o de sementes de aroeira (Myracrodruon urundeuva Allem?o)
Silva, Lígia Maria de Medeiros;Rodrigues, Teresinha de Jesus Deléo;Aguiar, Ivor Bergemann de;
Revista árvore , 2002, DOI: 10.1590/S0100-67622002000600006
Abstract: seed germination of myracrodruon urundeuva allem?o (anacardiaceae), a brazilian native tree, was studied under two light conditions (light and dark), both at constant (10, 15, 20, 25, 30, 35 and 40 oc) and alternating (20-25, 20-30 and 20-35 oc) temperature regimes. percentage, speed and distribution of germination were evaluated. seeds germinated either in presence or absence of light, but showed to be preferable negative photoblastic. the germination was null both at 10 and 40 oc, but seeds germinated from 15 to 35 oc. the best germination occurred at constant temperatures from 20 to 30 oc, and alternating temperature of 20-30 oc.
Aspectos ecológicos da aroeira (Myracrodruon urundeuva Allem?o- Anacardiaceae): fenologia e germina??o de sementes
Nunes, Yule Roberta Ferreira;Fagundes, Marcílio;Almeida, Hisaias de Souza;Veloso, Maria das Dores Magalh?es;
Revista árvore , 2008, DOI: 10.1590/S0100-67622008000200006
Abstract: myracrodruon urundeuva allem?o, an arboreal species known as aroeira, is an important component of seasonal dry forests in northern minas gerais. in spite of that, aroeira is experiencing a process of predatory exploitation, causing the devastation of its natural populations. this study aimed to assess the reproductive and vegetative phenological patterns, and the germinating capacity of the species. the study was carried out at the copasa preservation area in juramento (mg), where phenological phases were systematically observed bimonthly, from janurary/2002 to november/2003 in 20 arboreal individuals. seeds were collected and submitted to different scarification treatments (mechanic, thermal, chemical and control). the reproductive and vegetative phenophases of the species are influenced by environmental conditions. during the dry season, flowering, fructification and leaf fall occur, whereas the wet season favors leaf growth. besides, the germination of aroeira seeds varied among treatments, with higher germinating potential and germination velocity being verified in the control treatment, indicating the absence of dormancy. therefore, basic studies on the ecology of threatened forest species are essential to generate models and mechanisms for the management and restoration of their natural populations.
Mating system of a population of Myracrodruon urundeuva F.F. & M.F. Allem?o using the fAFLP molecular marker
Freitas, Miguel L.M.;Sebbenn, Alexandre M.;Moraes, Mario L.T.;Lemos, Eliana G.M.;
Genetics and Molecular Biology , 2004, DOI: 10.1590/S1415-47572004000300019
Abstract: the mating system and genetic diversity were studied in a natural population of myracrodruon urundeuva originating from 30 open-pollinated trees at the paulo de faria ecological station, sp, brazil. the progenies were planted on the teaching and research farm of the ilha solteira engineering school, unesp. using the faflp molecular marker, eleven loci were selected to study the mating system. the mating system was analyzed using the multilocus mixed-mating model. the estimates of genetic divergence between pollen and ovule allele frequencies were significant for eight loci, suggesting nonrandom outcrossing. the estimates of the multilocus outcrossing rate revealed that m. urundeuva possesses a mating system with a predominance of outcrossing events (q = 0.940 ± 0.086). the estimates of coancestry among plants within progenies (q = 0.185) was higher than that expected for half-sib progenies (0.125) and the indirect estimate of the correlation of outcrossed paternity within progeny arrays (rp) was 0.403, suggesting that progenies have a high proportion of full-sibs. result analysis suggests the need for the application of biometric models that take into account deviations from random outcrossing in the estimations of genetic parameters for quantitative traits and the need for retaining large sample sizes in order to preserve genetic variability.
Varia??o genética em progênies de Myracrodruon urundeuva F.F. & M.F. Allem?o em três sistemas de cultivo
Freitas, Miguel Luiz Menezes;Aukar, Ana Paula de Andrade;Sebbenn, Alexandre Magno;Moraes, Mario Luiz Teixeira de;Lemos, Eliana Gertrudes Macedo;
Revista árvore , 2006, DOI: 10.1590/S0100-67622006000300001
Abstract: myracrodruon urundeuva is one of the tree species the wood that presents the longest durability when in contact with soil. because of this characteristic, populations of m. urundeuva have been decimated throughout brazil. therefore, this work aimed at analyzing the expression of genetic variation in a natural population of m. urundeuva from the ecological station of the forest institute, located in paulo de faria-sp. seeds were collected from 30 free-pollination trees in september, 1996. by using this material, three progeny trials were installed in different planting systems in selvíria - ms, following a block design with 30 treatments (progenies) and three replications. the mixed crossbreeding model for m. urundeuva was assumed. significant differences were observed for progeny effects (progeny trials) although the progenies-environments interaction was not significant. thus, progenies presented the same behavior in different environments; however, their best performance was in the planting involving m. urundeuva, guazuma ulmifolia (lam) and anandenanthera falcata (benth. speg.). the progenies also presented considerable genetic variation; hence its utilization in programs for conservation and genetic improvement.
Envelhecimento acelerado como teste de vigor para diásporos de aroeira (Myracrodruon urundeuva Fr. Allem)
Caldeira, Sidney Fernando;Perez, Sonia Cristiana Juliano Gualtieri de Andrade;
Revista árvore , 2010, DOI: 10.1590/S0100-67622010000200003
Abstract: this work established the adequate temperature and the period of exposition for the accelerated ageing test with diasporas of myracrodruon urundeuva from an area of the cerrado in the state of mato grosso, brazil. before and after the ageing, at the temperatures of 40oc, 41oc, 42oc and 45oc combined with periods of 12, 18, 24, 30 and 36 hours, the water content and germination were evaluated. for each treatment, 12g of diasporas in mini chambers with 40 ml of distilled water were submitted to the accelerated ageing test. a total of 100 diasporas, divided into four replications, in plastic boxes, on two sheets of blotting paper, in germinator at 25oc and 8 hours of photoperiod were germinated. in all treatments the content of water of the aged diasporas was superior to 20% and this value stabilized itself between 25% and 28%, from the 18 hours of exposition. independently of the tested periods, the ageing at the temperatures of 40oc, 41oc and 42oc did not affect the germination. after the ageing at 45oc, the germination did not differ among the periods of 12, 18 and 24 hours of exposition, but in all these periods it was inferior to the control and superior to the periods of 30 and 36 hours. in these last two periods, fungi were observed. the accelerated ageing of diasporas of myracrodruon urundeuva should be conducted at the temperature of 45oc, during the exposition periods of 12 to 24 hours.
Antiulcer effect of the pepper trees Schinus terebinthifolius Raddi (aroeira-da-praia) and Myracrodruon urundeuva Allem?o, Anacardiaceae (aroeira-do-sert?o)
Carlini, Elisaldo A.;Duarte-Almeida, Joaquim M.;Rodrigues, Eliana;Tabach, Ricardo;
Revista Brasileira de Farmacognosia , 2010, DOI: 10.1590/S0102-695X2010000200001
Abstract: schinus terebinthifolius raddi and the myracrodruon urundeuva allem?o were evaluated in rats and mice for antiulcer effects, as these two plants are widely used in brazil for gastric ulcer treatment. extracts of the plants showed a marked protective effect against gastric ulcerations induced by immobilization stress at low temperature in rats. they also showed an increase in the ph and volume of the gastric contents, and reduction in gastric hemorrhage in rats, and decrease in intestinal transit in mice, even at the low doses of 3.4 mg/kg (1/4 of the dose used by humans).
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