Results 51 to 60 of about 804 (141)

Clastogenic effect of bracken fern (Pteridium aquilinum v. arachnoideum) diet in peripheral lymphocytes of human consumers: preliminary data [PDF]

Veterinary and Comparative Oncology, 2003
AbstractIngestion of bracken fern (Pteridium aquilinum v. arachnoideum) is associated with digestive tract cancer in different regions of Japan, Venezuela and Brazil. In view of reports that dietary bracken fern causes chromosomal instability in cattle, the clastogenic effect of bracken fern was investigated, in a preliminary study, in peripheral ...
R C, Recouso, R C, Stocco dos Santos, R, Freitas, R C, Santos, A C, de Freitas, O, Brunner, W, Beçak, C J, Lindsey   +7 more
openaire   +2 more sources

Caracterización poblacional de Pteridium arachnoideum (Kaulf.) Maxon y su vegetación asociada al páramo antrópico del sur del Ecuador

Revista Forestal Mesoamericana Kurú, 2023
Los páramos ecuatorianos afectados por incendios forestales presentan cambios en su estructura, composición florística, modificación en sus procesos ecológicos y aparición de especies invasoras. El presente trabajo se desarrolló en el Parque Universitario “Francisco Vivar Castro”, con la finalidad de caracterizar el estado actual de P.
Tillaguango-Pintado, Jhoana, Muñoz-Chamba, Luis, Muñoz, Johana, Aguirre, Zhofre   +3 more
openaire   +2 more sources

Flora of Espírito Santo: Dennstaedtiaceae

Rodriguésia
As part of the Flora of Espírito Santo project, it is presented the taxonomic treatment of Dennstaedtiaceae, with keys, descriptions, illustrations, and list of specimens examined.
Pedro B. Schwartsburd
doaj   +1 more source

Cianogênese em esporófitos de pteridófitas avaliada pelo teste do ácido pícrico Cyanogenesis in sporophytes of pteridophytes evidenced by the picric acid test

Acta Botânica Brasílica, 2005
Os glicosídeos cianogênicos são substâncias de defesa encontradas em alguns vegetais, capazes de liberar ácido cianídrico por meio de reações de hidrólise.
Marcelo Guerra Santos, Carlos Eduardo Martins Carvalho, Alphonse Kelecom, Maria Luiza Ribeiro da Costa Ribeiro, Camila Vaz Chagas de Freitas, Leonardo Moreira da Costa, Livia Viana de Godoy Fernandes   +6 more
doaj   +1 more source

Bovine enzootic hematuria in the state of tocantins and use of ultrasonography as a diagnostic method [PDF]

, 2022
Bovine enzootic hematuria (BEH) is a chronic disease caused by ingestion of Pteridium esculentum subsp. arachnoideum (Kaulf.) Thomson. This disease has great importance because it affects the animal wellbeing, causes economic losses, and hinders public ...
Abdalla Helayel, Michel, Aguiar Junior, Marcos Antônio, Andrade Caldas, Saulo, de Almeida Pereira, Josielle, de Assunção Nogueira Carvalho, Vivian, Dias Valle, Matheus, Ferreira Rocha, Juliana, Galindo Chenard, Marina, Gianordoli Teixeira Gomes, Marcio, Pinna, Aline Emerim   +9 more
core   +1 more source

Bovine enzootic haematuria from consumption of Pteris deflexa and Pteris plumula in northwestern Argentina [PDF]

, 2017
Bovine enzootic haematuria (BEH) is caused by prolonged ingestion of toxic principles of bracken fern, essentiallybyPteridium spp. In northwestern Argentina, this disease has a greateconomic impact ant it is attributed a chronic consumption to Pteridium ...
Colque Caro, Luis Adrian, Gimeno, Eduardo Juan, Martinez, Olga Gladys, Micheloud, Juan Francisco, Ribeiro, Debora De Silva Freitas, Soto Blanco, Benito   +5 more
core   +1 more source

Flora das cangas da Serra dos Carajás, Pará, Brasil: Dennstaedtiaceae

Rodriguésia
Resumo Este estudo trata dos táxons de Dennstaedtiaceae encontrados nas formações ferríferas da Serra dos Carajás, estado do Pará, com descrições, ilustrações, distribuição geográfica e comentários.
Alexandre Salino, André Jardim Arruda
doaj   +1 more source

Habitat differences in seed‐dispersing vertebrates indicate dispersal limitation in tropical bracken‐dominated deforested areas

Biotropica, Volume 56, Issue 3, May 2024.
Forest regeneration in tropical bracken‐dominated deforested areas is mainly hindered by dispersal limitation. We found differences in species composition of seed‐dispersing birds and bats between the forest and bracken‐dominated areas, which could be one of the main causes of dispersal limitation in forest regeneration in tropical bracken‐dominated ...
Silvia C. Gallegos, Cesar Mayta, Mariana Villegas, Guido M. Ayala, Kazuya Naoki, Josef Rechberger, Valeria Rojas, María E. Viscarra, Nuria Bernal‐Hoverud, Mauricio Espejo, Isabell Hensen   +10 more
wiley   +1 more source

Pteridófitas da Mata do Estado, município de São Vicente Férrer, estado de Pernambuco, Brasil: Cyatheaceae, Dennstaedtiaceae

Revista de Biologia Neotropical, 2007
O presente trabalho trata da pteridoflora da Mata do Estado, localizada no município de São Vicente Férrer, Zona da Mata norte do estado de Pernambuco.
Marcio Roberto Pietrobom, Iva Carneiro Leão Barros   +1 more
doaj   +1 more source

Estudos sobre a propagação de Gleichenella pectinata (Willd.) Ching (pteridófita - gleicheniaceae) [PDF]

, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em Biologia VegetalAs pteridófitas representam um importante grupo vegetal da flora brasileira.
Lehmann, Débora Rosana Marques
core