Results 61 to 70 of about 11,347 (217)
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.
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Transactions in GIS, Volume 30, Issue 2, April 2026.ABSTRACT This study presents the first deep‐learning time‐series benchmark for detecting two encroaching species in the Brazilian Cerrado: the native super‐dominant fern Pteridium arachnoideum and the invasive alien shrub Tithonia diversifolia. We evaluate 43 architectures across six families (CNNs, RNNs, Transformers, and three hybrid groups) on ...
Leandro de Arruda Bruno +3 more
wiley +1 more source
Distribuição e abundância do feto comum Pteridium aquilinum, na ilha do Pico [PDF]
, 2006 XII Expedição Científica do Departamento de Biologia - Pico 2005.O nosso trabalho centrou-se na observação e quantificação da distribuição de Pteridium aquilinum, frequentemente conhecido como feto comum, na ilha do Pico. Esta espécie é rica em compostos
Cordeiro, Nuno +4 more
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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 +6 more
wiley +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. +5 more
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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 +6 more
doaj +1 more source
Two Variations of Pteridium aquilinum
American Fern Journal, 1952 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Pteridium aquilinum: Importância para saúde pública [PDF]
Pubvet, 2015 From antiquity already know the potential toxic plants, which are capable of causing damage to human health and animals. In Brazil it is very frequent occurrence of cases of poisoning in cattle caused by eating poisonous plants. Ignorance of the toxic species is identified as the main factor for the occurrence of these accidents, so the best way to ...
Raniela Guimarães +1 more
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Variety in evolutionary strategies favours biodiversity in habitats of moderate productivity [PDF]
, 2011 The mechanism whereby biodiversity varies between habitats differing in productivity is a missing link between ecological and evolutionary theory with vital implications for biodiversity conservation, management and the assessment of ecosystem services ...
Simon Pierce
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A new Erica lusitanica Rudolphi heathland association to the Iberian south-west [PDF]
, 2012 As result of several field trips following doctoral research in Marianic-Monchiquensean Sector, we describe a new heathland named Lavandulo viridis-Ericetum lusitanici ass nova hoc loco (Genistion micrantho-anglicae, Rivas- Martínez 1979) as a ...
Cano-Ortíz, Ana +5 more
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