Results 21 to 30 of about 94,886 (291)
Human disturbances are greatly threatening to the biodiversity of vascular plants. Compared to seed plants, the diversity patterns of ferns have been poorly studied along disturbance gradients, including aspects of their taxonomic, phylogenetic, and ...
Xiaohua Dai +3 more
doaj +1 more source
Genes Translocated into the Plastid Inverted Repeat Show Decelerated Substitution Rates and Elevated GC Content. [PDF]
Plant chloroplast genomes (plastomes) are characterized by an inverted repeat (IR) region and two larger single copy (SC) regions. Patterns of molecular evolution in the IR and SC regions differ, most notably by a reduced rate of nucleotide substitution ...
Kuo, Li-Yaung +3 more
core +1 more source
BIOLOGICAL ACTIVITY OF FERNS OF THE BURYAT REPUBLIC
The Buryat Republic has a diverse and rich flora which includes many valuable ornamental, medicinal and food plants. These plants include the representatives of the division of ferns (Polypodiophyta) related to one of the most ancient groups of higher ...
V. M. Shishmarev, T. M. Shishmareva
doaj +1 more source
Free amino acid regulation in fronds and roots of two Pteris cretica L. ferns under arsenic stress
In the present study, free amino acid (AA) regulation in the arsenic (As) hyperaccumulating ferns was evaluated in a pot experiment to determine the relationship between As stress and the characteristic change in metabolism of AAs.
Veronika Zemanová +2 more
doaj +1 more source
Fern diversity in altitude and anthropogenic gradients in a temperate forest in Mexico City, Mexico
Natural diversity and composition patterns of ferns depend highly on environmental conditions such as moisture, temperature, and light imposed by altitudinal gradients. Currently, the main factor that causes changes in the diversity patterns of plants at
T.K. Oseguera-Olalde +5 more
doaj +1 more source
Robustness of Random Forest-based gene selection methods [PDF]
Gene selection is an important part of microarray data analysis because it provides information that can lead to a better mechanistic understanding of an investigated phenomenon.
Kursa, Miron B.
core +2 more sources
Ferns are less dependent on passive dilution by cell expansion to coordinate leaf vein and stomatal spacing than angiosperms. [PDF]
Producing leaves with closely spaced veins is a key innovation linked to high rates of photosynthesis in angiosperms. A close geometric link between veins and stomata in angiosperms ensures that investment in enhanced venous water transport provides the ...
Madeline R Carins Murphy +2 more
doaj +1 more source
Recent advances in plant developmental genetics together with rapid accumulation of transcriptomic data on plants from divergent lineages provide an exciting opportunity to explore the evolution of plant morphology.
Marina A. Romanova +6 more
doaj +1 more source
Interactive multiple object learning with scanty human supervision [PDF]
© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/We present a fast and online human-robot interaction approach that progressively learns multiple object classifiers using
Garrell Zulueta, Anais +3 more
core +1 more source
Pteridophytes as active components in gardening, agricultural and horticultural ecosystems in Japan
Many members of Pteridophytes have been traditionally used in the designs of Japanese gardens and a large variety of ferns attract gardeners as greening pieces in the garden designs.
Tomonori Kawano
doaj +1 more source

