Results 31 to 40 of about 377 (162)

Identity and relationships of the Arboreal Caatinga among other floristic units of seasonally dry tropical forests (SDTFs) of north‐eastern and Central Brazil

Ecology and Evolution, Volume 2, Issue 2, Page 409-428, February 2012., 2012
Multivariate and geostatisctic analyses showed that the tree species composition of 187 seasonally dry tropical forests (SDTF) in North‐eastern and Central Brazil varied significantly with both environmental variables and spatial proximity. There is a role for niche‐based control of tree species composition across the SDTFs areas determined primarily ...
Rubens M. Santos, Ary T. Oliveira‐Filho, Pedro V. Eisenlohr, Luciano P. Queiroz, Domingos B. O. S. Cardoso, Maria J. N. Rodal   +5 more
wiley   +1 more source

An Ecological Comparison of Floristic Composition in Seasonal Semideciduous Forest in Southeast Brazil: Implications for Conservation

International Journal of Forestry Research, Volume 2012, Issue 1, 2012., 2012
We examined floristic patterns of ten seasonal semideciduous forest sites in southeastern Brazil and conducted a central sampling of one hectare for each site, where we took samples and identified all individual living trees with DBH (diameter at breast height, 1.30 m) ≥4.8 cm. Arboreal flora totaled 242 species, 163 genera, and 58 families.
Sérgio de Faria Lopes, Ivan Schiavini, Ana Paula Oliveira, Vagner Santiago Vale, Frank Gilliam   +4 more
wiley   +1 more source

Branch regeneration of jaborandi submitted to diferentes types of pruning and cropping systems

Acta Agronómica
 The leaf of the jaborandi (Pilocarpus microphyllus) is the part of the plant of economic interest, from which the pilocarpine is extracted, therefore, leaf production is the main variable that determines the productivity of this species.
Osmar Alves Lameira, Fernanda Naiara Santos Ribeiro, Tainá Teixeira Rocha, Carolina Mesquita Germano, Rafael Marlon Alves de Assis   +4 more
doaj   +1 more source

Parcerias institucionais e evolução do extrativismo de jaborandi na Floresta Nacional de Carajás, Pará, Brasil

Sustentabilidade em Debate, 2016
Este artigo discute o extrativismo vegetal na região Amazônica a partir da coleta extrativa de folhas de jaborandi, na região de Carajás (Pará, Brasil).
Fabiano Gumier-Costa, David Gibbs McGrath, Juarez Carlos Brito Pezzuti, Alfredo Kingo Oyama Homma   +3 more
doaj   +1 more source

Pilocarpine accumulation on Pilocarpus pennatifolius tissue culture [PDF]

Revista Brasileira de Ciências Farmacêuticas, 2004
Culturas de calos e de celulas em suspensao foram estabelecidas a partir de folhas jovens de Pilocarous pennatifolius em meio Murashige & Skoog (MS) suplementado com 5 mg/L de acido 2,4-diclorofenoxiacetico e 1 mg/L de cinetina. O teor de pilocarpina nas culturas e suspensoes celulares foi quantitativamente comparado por CLAE.
Salles, Luisa de Andrade, Lopes, Silvia de Oliveira, Zuanazzi, José Angelo S., Rech, Sandra B., Henriques, Amélia Terezinha   +4 more
openaire   +3 more sources

Intracultural Variation in the Knowledge of Medicinal Plants in an Urban‐Rural Community in the Atlantic Forest from Northeastern Brazil

Evidence-Based Complementary and Alternative Medicine, Volume 2012, Issue 1, 2012., 2012
This study assessed the intracultural knowledge of the use of medicinal plants in an urban‐rural community in an Atlantic forest fragment in northeastern Brazil. We examined the importance of native and exotic species and the effects of gender and age on that knowledge.
Cecília de Fátima Castelo Branco Rangel de Almeida, Marcelo Alves Ramos, Rafael Ricardo Vasconcelos Silva, Joabe Gomes de Melo, Maria Franco Trindade Medeiros, Thiago Antonio de Sousa Araújo, Alyson Luiz Santos de Almeida, Elba Lúcia Cavalcanti de Amorim, Rômulo Romeu da Nóbrega Alves, Ulysses Paulino de Albuquerque, Ana H. Ladio   +10 more
wiley   +1 more source

Forest Inventories in Private and Protected Areas of Paraguay

Challenges, 2023
Environmental degradation in Paraguayan ecosystems relates to anthropogenic intervention and has intensified with wildfires and drought. To help mitigate forest cover loss, the local government created laws, parceled land to private owners, and ...
Andrew G. Cervantes, Patricia T. Vega Gutierrez, Seri C. Robinson   +2 more
doaj   +1 more source

Secondary Forest Succession in the Mata Atlantica, Brazil: Floristic and Phytosociological Trends

International Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
This study aimed at understanding the dynamics of ecological processes and the use of secondary forests in Santa Catarina state (Brazil). The data base for these studies was formed through forest inventories carried out in the three forest types of the state.
Alexandre Siminski, Alfredo Celso Fantini, Raymond Paul Guries, Ademir Roberto Ruschel, Maurício Sedrez dos Reis, D. Loustau, A. D. Steinman   +6 more
wiley   +1 more source

Insecticidal activity of 2-tridecanone against the cowpea weevil Callosobruchus maculatus (Coleoptera: Bruchidae)

Anais da Academia Brasileira de Ciências, 2007
The effect of 2-tridecanone vapor on the cowpea weevil (Callosobruchus maculatus) development was determined. Seeds of cowpea were infested with adults and exposed to different doses of 2-tridecanone isolated from Pilocarpus microphyllus Stapf ex Holm, a
Yussef F.B. Braga, Thalles B. Grangeiro, Eder A. Freire, Helano L. Lopes, José N. S. Bezerra, Manoel Andrade-Neto, Mary Anne S. Lima   +6 more
doaj   +1 more source

2D NMR Methods for Structural Delineation of Copper(II) Complexes of Penicillin and Pilocarpine

Metal-Based Drugs, Volume 1, Issue 2-3, Page 279-287, 1994., 1994
A method was developed for delineating the structure of paramagnetic metal complexes. The selective disappearance of cross‐peaks in proton‐carbon shift correlated 2D NMR maps was shown to uniquely depend upon the scalar and/or dipolar interaction between ligand nuclei and the unpaired electron(s), thus providing a means of identifying binding sites ...
Elena Gaggelli, Nicola Gaggelli, Gianni Valensin   +2 more
wiley   +1 more source