Results 1 to 10 of about 402 (106)

Anatomically preserved early Cretaceous lycophyte shoots; enriching the paleontological record of Lycopodiales and Selaginellales

open access: yesActa Palaeobotanica, 2023
Anatomically preserved lycophytes of the Lycopodiales and Selaginellales have been discovered among a diverse assemblage of plants and fungi in carbonate marine concretions at the Apple Bay locality along the shore of Holbert Inlet near the northern end ...
Gar W. Rothwell, Ruth A. Stockey
doaj   +2 more sources

Phylogeny, character evolution, and classification of Selaginellaceae (lycophytes) [PDF]

open access: yesPlant Diversity, 2023
Selaginella is the largest and most taxonomically complex genus in lycophytes. The fact that over 750 species are currently treated in a single genus makes Selaginellales/Selaginellaceae unique in pteridophytes.
Xin-Mao Zhou, Li-Bing Zhang
doaj   +2 more sources

Lykopodiofity Polski Lycopodiales, Selaginellales, Isoëtales

open access: yesMonographiae Botanicae, 2023
Lykopodiofity (Lycopodiopsida) to najstarsza współcześnie istniejąca linia roślin waskularnych. Stanowi relikt filogenetyczny, umożliwiający analizę ewolucji procesów zachodzących u roślin lądowych. Monografia Lykopodiofity Polski przedstawia aktualny stan badań nad tą grupą roślin i stanowi obszerne kompendium wiedzy na ich temat. Wprowadza nowoczesne
Ewa Szczęśniak   +2 more
openaire   +1 more source

Synthesis and Biological Evaluation of Theophylline Methyl 1,3,4-Oxadiazole as Anticancer Agents [PDF]

open access: yes, 2020
A series of theophylline methyl 1,3,4-oxadiazole small molecules were obtained via cyclization of theophylline-7-acetohydrazide with different benzoic acids. The compounds (IVa-j) were synthesized and characterized by using conventional methods.
Gopinatha, Vindya K.   +4 more
core   +1 more source

Phylogenie und Systematik der Gefäßpflanzen [PDF]

open access: yes, 2016
Das Lehr- und Lernposter „Stammbaum der Tracheophyten – Phylogenie und Systematik der Gefäßpflanzen“ gibt einen Überblick a) über die Phylogenie (Stammesgeschichte) der „Farnverwandten“ (Lycophyten und Monilophyten, die „Farne“) bis zu den Familien ...
Cole, Theodor C.H., Hilger, Hartmut H.
core   +1 more source

Systematics and Chatacteristics [PDF]

open access: yes, 2016
The "Tracheophyte Phylogeny Poster – Vascular Plants - Systematics and Characteristics" is an educational tool presenting an overview of the evolutionary relationships among non-flowering vascular plants (lycophytes, monilophytes, and gymnosperms ...
Cole, Theodor C.H., Hilger, Hartmut H.
core   +1 more source

Construction of a bacterial artificial chromosome library from the spikemoss : a new resource for plant comparative genomics [PDF]

open access: yes, 2005
BACKGROUND:The lycophytes are an ancient lineage of vascular plants that diverged from the seed plant lineage about 400 Myr ago. Although the lycophytes occupy an important phylogenetic position for understanding the evolution of plants and their genomes,
Arumuganathan, K.   +15 more
core   +3 more sources

Plant 4/1 protein: potential player in intracellular, cell-to-cell and long-distance signaling [PDF]

open access: yes, 2014
Originally isolated as a result of its ability to interact with the movement protein of Tomato spotted wilt virus in a yeast two-hybrid system, the 4/1 protein is proving to be an excellent tool for studying intracellular protein trafficking and ...
Andrey G. Solovyev   +6 more
core   +2 more sources

A synthesis of palynological data from the Lower Permian Cerro Pelado Formation (Parana Basin, Uruguay): A record of warmer climate stages during Gondwana glaciations [PDF]

open access: yes, 2010
This paper presents a synthesis of the palynological record in the Cerro Pelado Formation deposits (Lower Permian, Paraná basin, Cerro Largo Department, north-eastern Uruguay) based on pre-existing data and new findings.
Beri, A.   +2 more
core   +2 more sources

Leaves and sporangia developed in rare non-Fibonacci spirals in early leafy plants [PDF]

open access: yes, 2023
Lateral plant organs, including leaves and reproductive structures, are arranged on stems in distinct patterns, termed phyllotaxis. Most extant plants exhibit phyllotactic patterns that are mathematically described by the Fibonacci series.
Hetherington, Sandy   +3 more
core   +2 more sources

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