Results 81 to 90 of about 4,619 (168)

Electrophoretic Evidence for Genetic Diploidy in the Bracken Fern (Pteridium aquilinum)

, 1987
Analysis of isozyme variability demonstrates that bracken fern (Pteridium aquilinum) has a diploid genetic system and expresses solely disomic inheritance patterns.
Haufler, C. H., Sheffield, E., Wolf, Paul G.   +2 more
core   +1 more source

Morfologia de esporos de pteridófitas do Parque Estadual das Fontes do Ipiranga (São Paulo, Brasil): Família: 5-Dennstaedtiaceae

Hoehnea
Foram estudados os esporos de onze espécies de pteridófitas pertencentes à família Dennstaedtiaceae do Parque Estadual das Fontes do Ipiranga. A família está representada na área por cinco gêneros: Histiopteris, Hypolepis, Lindsaea, Pteridium e Saccoloma.
Luciano Mauricio Esteves, Carolina Brandão Coelho   +1 more
doaj   +1 more source

Sobrevivência/viabilidade de bovinos com Hematúria Enzoótica após transferência para região livre de Pteridium arachnoideum

Pesquisa Veterinária Brasileira, 2012
Com o objetivo de esclarecer a questão da sobrevida de bovinos afetados por Hematúria Enzoótica, quando transferidos para áreas livres de Pteridium arachnoideum, o estudo foi realizado em duas partes: a) aplicação de questionário versando sobre os ...
Alexandre Galvão, Marilene de Farias Brito, Ana Paula Aragão, Elise Miyuki Yamasaki, Paulo Vargas Peixoto, Carlos Hubinger Tokarnia   +5 more
doaj   +1 more source

Bracken (\kur{Pteridium aquilinum}) fertility affecting factors

, 2015
Usually, Pteridium aquilinum reproduces vigorously by the use of rhizomes. An occurence of fertile populations is rather rarely recorded.
JONÁŠOVÁ, Barbora
core  

La biotoxina ptaquilósido en helechos del género Pteridium

, 2023
Introduction. The ferns of the genus Pteridium are characterized by their wide habitat and adaptive power that allows their establishment in various types of soils and altitudes. They have the ability to produce a toxin called ptaquiloside. Objective. To
Rodríguez Salazar, Massiel, Chacón Villalobos, Alejandro   +1 more
core  

Hematologycal, biochemical, Urinary and histopathological changes in natural intoxication in bovine by bracken fern (Pteridium aquilinum) (L.) Kühn/
Alterações hematológicas, bioquímicas, urinárias e histopatológicas na intoxicação natural em bovinos pela samambaia Pteridium aquilnum (L.) Kühn

Semina: Ciências Agrárias, 2005
Enzootic hematuria is a cronic disease of cows clinically characterized by intermittent hematuria that can be caused by bracken fern (Pteridium aquilinum) and the papilomatosis virus.
Itacir Eloi Sandini, Werner Okano, João Pessoa Araújo Jr., Ana Paula F. R. L. Bracarense, Mara Regina Stipp Balarin, Antônio Carlos Faria dos Reis, Margarete Kimie Falbo   +6 more
doaj   +1 more source

Biochemical aspects of Pteridium spp. (bracken fern) toxicity in K14-HPV16 transgenic mice [PDF]

Biochemical aspects of Pteridium spp.
Medeiros-Fonseca, B, Oliveira, PA, Gil da Costa, RM, Medeiros, R, Faustino-Rocha, Ana I, Neuparth, MJ   +5 more
core  

Purification of ptaquiloside, a carcinogen from Pteridium aquilinum

, 1995
Ptaquiloside, the major carcinogen of bracken fern (Pteridium aquilinum), was isolated in high yield from milled freeze-dried plant material. Because the compound is unstable, a new method was devised to avoid steps which caused loss of activity.
Ng, Jack C., Bartley, John, Oelrichs, Peter B.   +2 more
core   +1 more source

Characterization of cystically dilated gland of gastric mucosa of mouse exposed to Pteridium aquilinum.

, 2012
Pteridium aquilinum treated mice (Group 2) displaying a cystically dilated gland stained with hematoxylin and eosin (a), Alcian Blue (pH = 2,5) (b), and immunostained for Sialyl-Lewis x antigen (c). Bar = 20 µm.
Steven R. Head (158299), Valérie Michel (158304), Celso A. Reis (158314), Gilberto E. Hernandez (158289), Ana S. Carvalho (158284), Joana Gomes (158278), Suzanne L. Papp (158294), Leonor David (158309), Ana Magalhães (158282), Fátima Gärtner (77491), Eliette Touati (158311)   +10 more
core   +1 more source

Worldwide Relationships in the Fern Genus Pteridium (Bracken) Based on Nuclear Genome Markers [PDF]

, 2019
PREMISE: Spore-bearing plants are capable of dispersing very long distances. However, it is not known if gene flow can prevent genetic divergence in widely distributed taxa.
McLenachan, Patricia A., Patricia A. McLenachan, Shepherd, Lara D., Carol A. Rowe, Lara D. Shepherd, John A. Thomson, Peter J. Lockhart, Wolf, Paul G., Thomson, John A., Rowe, Carol A., Kinosian, Sylvia P., Der, Joshua P., Lockhart, Peter J., Paul G. Wolf, Sylvia P. Kinosian, Joshua P. Der   +15 more
core   +1 more source