Results 51 to 60 of about 6,749 (236)

Diversity and distribution of ferns and lycophytes in areas of restinga sandy coastal plain in south of Santa Catarina, Brazil

open access: yesRodriguésia, 2023
Ferns and lycophytes are plants often overlooked in most floristic inventories, leading to considerable gaps in the knowledge of their diversity and geographic distribution. To address this issue, we conducted a study aimed at reducing these gaps for the
Arthur Oliveira Garcia   +6 more
doaj   +1 more source

Angiosperms Are Unique among Land Plant Lineages in the Occurrence of Key Genes in the RNA-Directed DNA Methylation (RdDM) Pathway [PDF]

open access: yes, 2015
We are grateful for the FP7 Marie Curie IEF (Lu Ma), the FP7 Marie Curie ITN INTERCROSSING (Andrea Hatlen), the Czech Science Foundation (501/12/G090, Ales Kovarik), China Scholarship Council (Wencai Wang), and NERC (NE/ G01724/1, Laura Kelly, Ilia ...
Becher, H   +7 more
core   +2 more sources

Diversity and composition of ferns and lycophytes in a fragmented landscape in Ecuadorian Amazonia

open access: yesRodriguésia, 2023
Tropical forests have been subjected to increasing deforestation, leading to severe habitat loss and fragmentation of the landscape. Studies of various plant groups-indicate alteration in species diversity and assemblage composition in response to these ...
Gabriel Massaine Moulatlet   +4 more
doaj   +1 more source

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

open access: yes, 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   +4 more
core   +3 more sources

A lycophyte's plight when the light is too bright

open access: yesPhysiologia Plantarum, 2022
Plants cannot go to the store to buy sunscreen when they get too much sunlight. Instead, they use a suite of molecular processes that turn excess absorbed light energy into heat so that it can be harmlessly dissipated. These photoprotective processes collectively fall under the umbrella term “nonphotochemical quenching of chlorophyll fluorescence ...
openaire   +3 more sources

Selaginella genome analysis – entering the ‘homoplasy heaven’ of the MADS world

open access: yesFrontiers in Plant Science, 2012
In flowering plants, arguably the most significant transcription factors regulating development are MADS-domain proteins, encoded by Type I and Type II MADS-box genes. Type II genes are divided into the MIKCC and MIKC* groups. In angiosperms, these types
Lydia eGramzow   +6 more
doaj   +1 more source

Complete plastid genomes from Ophioglossum californicum, Psilotum nudum, and Equisetum hyemale reveal an ancestral land plant genome structure and resolve the position of Equisetales among monilophytes [PDF]

open access: yes, 2013
BACKGROUND: Plastid genome structure and content is remarkably conserved in land plants. This widespread conservation has facilitated taxon-rich phylogenetic analyses that have resolved organismal relationships among many land plant groups.
A Katie Hansen   +4 more
core   +2 more sources

The evolution of aluminum accumulation in ferns and lycophytes [PDF]

open access: yesAmerican Journal of Botany, 2017
PREMISE OF THE STUDY:This paper investigates the occurrence and evolution of aluminum (Al) accumulation within ferns and lycophytes, which is characterized by Al concentrations above 1000 mg·kg−1 in aboveground plant tissues. We hypothesize that this feature is more common in ferns than in angiosperms, and potentially correlated with growth form and ...
Marco, Schmitt   +5 more
openaire   +2 more sources

Shaped by context: Evolutionary trajectories of desiccation tolerance in land plants

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Desiccation tolerance (DT), the ability to survive near‐complete cellular dehydration, is widespread in diaspores but rare in the vegetative tissues of land plants. The patchy and punctuated phylogenetic distribution of vegetative desiccation tolerance (VDT) suggests that the trait is both ancient and recurrent, yet the evolutionary ...
Rose A. Marks   +2 more
wiley   +1 more source

A Review of Galls on Ferns and Lycophytes

open access: yesEnvironmental Entomology, 2018
Fern-insect interactions have not received the same attention as angiosperm-insect interactions have. It has even been stated that ferns may have very few interactions with animals because of their lack of flowers, fruits, and seeds. Consequently, for many decades fern-insect interactions have been overlooked and underestimated, especially for highly ...
Marcelo Guerra, Santos   +3 more
openaire   +2 more sources

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