Results 31 to 40 of about 475 (155)
From the Guiana Highlands to the Brazilian Atlantic Rain Forest: four new species of Selaginella (Selaginellaceae – Lycopodiophyta: S. agioneuma, S. magnafornensis, S. ventricosa, and S. zartmanii) [PDF]
We describe four new species in the genus Selaginella (i.e., S. agioneuma, S. magnafornensis, S. ventricosa, and S. zartmanii) from Brazil, all presently classified in subg. Stachygynandrum.
Iván A. Valdespino +3 more
doaj +2 more sources
The auxin gatekeepers: Evolution and diversification of the YUCCA family. [PDF]
SUMMARY The critically important YUCCA (YUC) gene family is highly conserved and specific to the plant kingdom, primarily responsible for the final and rate‐limiting step for indole‐3‐acetic acid (IAA) biosynthesis. IAA is an essential phytohormone, involved in virtually all aspects of plant growth and development.
Vijayanathan M +4 more
europepmc +2 more sources
Antecedentes: La posible variación anatómica intraespecífica en traqueofitas inferiores no se registra. En este trabajo se describe la anatomía de tallos aéreos de Selaginella pallescens de diferentes hábitats, así como la membrana de la punteadura del ...
Dalia Grego-Valencia +5 more
doaj +1 more source
Environmental heterogeneity dynamics drive plant diversity on oceanic islands
Abstract Aim The General Dynamic Model (GDM) links island biogeographical processes to island geological history. A key premise of the GDM implies that environmental factors shaping the ecology and evolution of biota on oceanic islands follow a hump‐shaped trend over the island's life span and drive dynamics in carrying capacity, species diversity and ...
Martha Paola Barajas‐Barbosa +4 more
wiley +1 more source
Betaines in Four Additional Phyla of Green Plants
Fourteen fern, two horsetail (Pteridophyta), three clubmoss (Lycopodiophyta), nine moss and two liverwort (Bryophyta, Marchantiophyta) species were examined for the presence of betaines. Glycinebetaine was detected in some of the fern, clubmoss, moss and
Gerald Blunden +3 more
doaj +1 more source
Background: La Chinantla, a topographically and geomorphologically complex region, and probably the most humid in the country, hosts a diverse but largely unknown biota, particularly at higher elevations. Questions: How many plant species are present
Jorge A. Meave +4 more
doaj +1 more source
У кваліфікаційній роботі представлено результати діджиталізації гербарного фонду з колекції «Гербарій флори Поділля» Вінницького обласного краєзнавчого музею.
Бойко , І.Я.
core
Background Chromodomain-containing Gypsy LTR retrotransposons or chromoviruses are widely distributed among eukaryotes and have been found in plants, fungi and vertebrates.
Blinov Alexander +2 more
doaj +1 more source
Summary Lycophytes are a key group for understanding vascular plant evolution. Lycophyte plastomes are highly distinct, indicating a dynamic evolutionary history, but detailed evaluation is hindered by the limited availability of sequences. Eight diverse plastomes were sequenced to assess variation in structure and functional content across lycophytes.
Jeffrey P. Mower +6 more
wiley +1 more source
Plastid phylogenomic analysis of green plants: A billion years of evolutionary history
Premise of the Study For the past one billion years, green plants (Viridiplantae) have dominated global ecosystems, yet many key branches in their evolutionary history remain poorly resolved. Using the largest analysis of Viridiplantae based on plastid genome sequences to date, we examined the phylogeny and implications for morphological evolution at ...
Matthew A. Gitzendanner +4 more
wiley +1 more source

