Results 51 to 60 of about 14,765 (206)

Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns [PDF]

, 2016
publisher: Elsevier articletitle: Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns journaltitle: Perspectives in Plant Ecology, Evolution and Systematics articlelink: http://dx.doi.org/10.1016/j.ppees.2016.01.003 ...
Alexander R. Schmidt, Barden, Bell, Benton, Benton, Cardinal, Caspary, Christenhusz, Coiffard, Collinson, Collinson, Cruickshank, Darriba, Drummond, Feldberg, Goeppert, Grimaldi, Guindon, Gómez, Harald Schneider, Hasebe, Hedenäs, Heinrichs, Heinrichs, Heinrichs, Heinrichs, Hu, Jochen Heinrichs, Kramer, Kvaček, Lehtonen, Lehtonen, Lloyd, Lovis, Lóriga, Maddison, Magallón, Magallón, Mays, Mendes, Meredith, Mohr, Nagalingum, Nagalingum, Parham, Poinar, Poinar, Pérez-de la Fuente, Rambaut, Rambaut, Ren, Rothwell, Schmidt, Schmidt, Schneider, Schneider, Schneider, Schneider, Schneider, Schuettpelz, Schuettpelz, Shi, Skog, Smith, Smith, Smith, Smith, Smith, Tidwell, Tryon, van Konijnenburg-van Cittert, Vera, Vermeij, Villarreal, Wing, Zeng   +75 more
core   +1 more source

Selenium reverses Pteridium aquilinum-induced immunotoxic effects

Food and Chemical Toxicology, 2011
We have previously shown that bracken fern (Pteridium aquilinum) has immunomodulatory effects on mouse natural killer (NK) cells by reducing cytotoxicity. Alternatively, it has been demonstrated that selenium can enhance NK cell activity. Therefore, the aims of the present study were to evaluate if ptaquiloside, the main toxic component found in P ...
Latorre, A.O., Caniceiro, B.D., Wysocki Jr., H.L., Haraguchi, M., Gardner, D.R., Górniak, S.L.   +5 more
openaire   +2 more sources

Screening of Native Plant Species in the Artisanal Gold Mining Sites of Doko, Guinea: Perspectives for Phytoremediation

CLEAN – Soil, Air, Water, Volume 54, Issue 3, March 2026.
This study focuses on phytoremediation in a gold mining‐contaminated area in Doko, Guinea. Plant, soil, and rhizospheric soil samples were collected and subjected to physicochemical analyses to quantify heavy metal content. Biological indicators: bioconcentration factor (BCF), translocation factor (TF), and biological accumulation coefficient (BAC ...
Ahmed Amara Konaté, Joseph Hébélamou, Alassane Diallo, Khaled Gemail, Said El Hasnaoui, Abdelaziz Smouni, Mouna Fahr   +6 more
wiley   +1 more source

Neoplasmas da bexiga associados à hematúria enzoótica bovina Urinary bladder neoplasms associated with bovine enzootic hematuria

Ciência Rural, 2006
Relatam-se três casos de hematúria enzoótica bovina (HEB) em animais provenientes do município de Jaguari, RS, Brasil. As pastagens de todas as propriedades de origem estavam altamente infestadas por samambaia (Pteridium aquilinum).
Marione de Albuquerque Moreira Souto, Glaucia Denise Kommers, Claudio Severo Lombardo de Barros, Raquel Rubia Rech, José Vitor Marcon Piazer   +4 more
doaj   +1 more source

The life cycles of cryptogams [PDF]

, 1991
Meiosis and karyogamy are recognized as control points in the life cycle of cryptogams. The control of meiosis is evidently complex and in yeast, and by analogy in all cryptogams, involves progressive gene activation.
Bell, Peter R.
core   +2 more sources

De novo characterization of the gametophyte transcriptome in bracken fern, Pteridium aquilinum [PDF]

, 2011
Background Because of their phylogenetic position and unique characteristics of their biology and life cycle, ferns represent an important lineage for studying the evolution of land plants.
Claude W dePamphilis, Joshua P Der, Michael S Barker, Norman J Wickett, Paul G Wolf   +4 more
core   +3 more sources

Comparação fitossociológica entre duas amostragens numa área de clareira em anos consecutivos, Estação Biológica de Caratinga, MG Phytosociology comparing between two gaps in the Caratinga Biologic Station, Minas Gerais State

Acta Botânica Brasílica, 1993
A Estação Biológica de Caratinga encontra-se dentro do domínio Atlântico, sob um clima sazonal com uma estação úmida e quente (outubro-março) e outra seca e fria (abril-setembro). O solo é do tipo Latossolo Vermelho-Amarelo álico.
Leonardo Vianna da Costa e Silva
doaj   +1 more source

Replicability of data collected for empirical estimation of relative pollen productivity [PDF]

, 2016
The effects of repeated survey and fieldwork timing on data derived from a recently proposed standard field methodology for empirical estimation of relative pollen productivity (RPP) have been tested.
Bunting, M. Jane, Farrell, Michelle, Middleton, Richard   +2 more
core   +2 more sources

Adjacent Forests Enhance Spontaneous Revegetation and Phylogenetic Similarity on Mountainous Roadside Slopes: Implications for Ecological Restoration and Forest Edge Management

Ecology and Evolution, Volume 16, Issue 3, March 2026.
The native‐dominated vegetation on roadside slopes primarily originates from adjacent forests, with long‐distance dispersal traits enhancing spontaneous colonization in these disturbed environments. The species composition and phylogenetic similarity between slope and forest communities are significantly influenced by the adjacent forests (species ...
Kun‐Rong Qin, Zi‐Zhuo Wang, Feng‐Ping Yang, Hua Qin, Xian‐Tao Peng, Hai‐Yang Wang   +5 more
wiley   +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