Results 61 to 70 of about 9,814 (224)

Tetraodon genome confirms Takifugu findings : most fish are ancient polyploids [PDF]

open access: yes, 2004
An evolutionary hypothesis suggested by studies of the genome of the tiger pufferfish Takifugu rubripes has now been confirmed by comparison with the genome of a close relative, the spotted green pufferfish Tetraodon nigroviridis.
Van de Peer, Yves
core   +1 more source

Chemical Profiling, In Silico and In Vitro Studies to Identify Potential CDK2 and mTOR Inhibitor From Selaginella inaequalifolia (Hook. & Grev.) Spring Ethanolic Extracts

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
ABSTRACT The current study is aimed to reveal the phytoprofile of Selaginella inaequalifolia (Hook. & Grev.) Spring using GC–MS and predict the drug properties, toxicity, biological properties of S. inaequalifolia ethanolic extracts (SiEE) using in silico methods and in vitro toxicity assays, namely, MTT and BSLB assay.
Johnson Marimuthu Alias Antonysamy   +4 more
wiley   +1 more source

Pteridophyte Aerospora of India [PDF]

open access: yesGrana, 1988
Abstract Spores belonging to 43 taxa of pteridophytes were observed from the ambient air of 11 localities in India. It is suggested that pteridophyte spores could be listed among viable particulate air pollutants, especially in the light of the earlier reports regarding their allergenicity.
null Yasmeen, Jaswant Singh, Santha Devi
openaire   +1 more source

The life cycles of cryptogams [PDF]

open access: yes, 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

Age of innovation: Progress in systematic botany in the 20th century

open access: yesTAXON, Volume 75, Issue 1, February 2026.
Abstract Systematic botany can be regarded as the oldest of the botanical sciences, having originated with the ancient Greeks. Although much progress has been achieved in systematic botany over nearly two millennia, in the 20th century, many significant innovations took place in revealing processes of evolution, principles and methods of classification,
Tod F. Stuessy
wiley   +1 more source

Identifikasi Keanekaragaman Paku-pakuan (Pteridophyta) Epifit Pada Hutan Bekas Tebangan Di Hutan Penelitian Malinau – Cifor Seturan (Diversity Identification on the Pteridophytes Epiphyte at the Log Over Area at Malinau Forest Research – Cifor Seturan) [PDF]

open access: yes, 2007
The aim from this research is to found out the various kinds of Pteridophytes epiphytes and its porophyte in the log over area to the broadness of 12 hectares in the Malinau Research Forest (MRF-CIFOR) Seturan – district of Long Loreh the regency of ...
Sujalu, A. P. (Akas)
core  

Global Diversification Rates of Ferns Across Spatial and Climatic Gradients

open access: yesAdvanced Science, Volume 13, Issue 3, 14 January 2026.
Diversification rates of fern genera across the phylogeny. Abstract Geographic patterns of diversity in any group of plants are the result of the interplay of environmental conditions and the evolutionary dynamics of the respective plant group. Here, the geographic distribution of current mean diversification rates (MDR) is explored at the genus level ...
Hong Qian, Michael Kessler, Shenhua Qian
wiley   +1 more source

Potential and historical Uses for bracken (Pteridium aquilinum (L.) Kuhn) in organic agriculture [PDF]

open access: yes, 2002
This report was presented at the UK Organic Research 2002 Conference. Bracken is considered a serious weed species, due to its toxic constituents and negative impacts on agriculture and conservation.
Donnelly, Eric   +2 more
core  

Fern spore dispersal: A methodological review and experimental field study

open access: yesApplications in Plant Sciences, Volume 14, Issue 1, January-February 2026.
Abstract Spore dispersal is one of the most important but perhaps the least investigated and understood processes in determining the geographical distribution of fern species. After a methodological review of the aerobiology of fern spores, we examined the impact of spore characteristics and meteorological factors on their airborne dispersal.
Felipe Gómez‐Noguez   +6 more
wiley   +1 more source

Lista anotada das pteridófitas de florestas inundáveis do alto Rio Negro, Município de Santa Isabel do Rio Negro, AM, Brasil Checklist of pteridophytes from flood-forests of "alto Rio Negro", municipality of Santa Isabel do Rio Negro, AM, Brazil

open access: yesActa Botânica Brasílica, 2005
É apresentada uma lista anotada das pteridófitas que ocorrem no Município de Santa Isabel do Rio Negro, Amazonas, como uma contribuição ao conhecimento da flora da amazônia brasileira. Na região predominam as florestas inundáveis e podem ser reconhecidos
Carlos Alberto A. de Freitas   +1 more
doaj   +1 more source

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