Results 51 to 60 of about 345 (122)

Progress and problems in the assessment of flower morphology in higher-level systematics [PDF]

open access: yes, 2018
Floral features used for characterization of higher-level angiosperm taxa (families, orders, and above) are assessed following a comparison of earlier (precladistic/premolecular) and current classifications.
Endress, Peter, Matthews, Merran
core  

EFEK PEMBERIAN EKSTRAK KAYU AKWAY (Drymis Sp) TERHADAP KUALITAS SPERMATOZOA MENCIT (Mus musculus L) [PDF]

open access: yes, 2019
This research was aimed to study the effect of Akway wood (Drymis Sp) extract treatment on spermatozoa quality of mice (Mus musculus L). The extract was given orally once a day in 2 weeks. The animals were divided into three groups; one control group (K1)
Purwaningsih, Purwaningsih   +1 more
core   +2 more sources

Phylogenomics and the rise of the angiosperms [PDF]

open access: yes
Angiosperms are the cornerstone of most terrestrial ecosystems and human livelihoods$^{1,2}$. A robust understanding of angiosperm evolution is required to explain their rise to ecological dominance.
Antar, Guilherme M   +32 more
core   +6 more sources

Robust Inference of Monocot Deep Phylogeny Using an Expanded Multigene Plastid Data Set [PDF]

open access: yes, 2006
We use multiple photosynthetic, chlororespiratory, and plastid translation apparatus loci and their associated noncoding regions (ca. 16 kb per taxon, prior to alignment) to make strongly supported inferences of the deep internal branches of monocot ...
Brown, Vincent L.   +13 more
core   +3 more sources

Phylogénie, datation moléculaire et évolution florale des Magnoliidae (Angiospermes) [PDF]

open access: yes, 2014
Les relations de parentés profondes au sein des Angiospermes ont été longtemps incertaines. A la fin des années 90, les études phylogénétiques à grande échelle ont contribué à l obtention de l arbre actuel des Plantes à fleurs, dans lequel ...
MASSONI, Julien, SAUQUET, Hervé
core  

Embryology of \u3cem\u3eManekia naranjoana\u3c/em\u3e (Piperaceae) and its Implications for the Origin of the Sixteen-nucleate Female Gametophyte in Piperales [PDF]

open access: yes, 2007
Piperaceae is unique among Piperales because it is the only tetrasporic group in the order and a great deal of diversity in the ontogenetic trajectories of the female gametophyte is found in its genera.
Arias-Garzón, Tatiana
core   +1 more source

MAGNOLIIDS’ DIVERSITY IN THE HERBARIUM COLLECTIONS OF THE STATE OF PARÁ [PDF]

open access: yes, 2019
O clado Magnoliids possui uma distribuição global, no entanto é mais abundante nos trópicos, sendo o grupo de angiospermas basais mais diversificado.
Macedo Cerqueira, Roberta   +1 more
core   +1 more source

Diseño de un producto antibacterial para superficies procedente de extractos vegetales de Drimys granadensis L.f a nivel laboratorio [PDF]

open access: yes, 2017
A surface disinfectant for domestic use, was developed from a partially polar fraction of the Andean Paramo specie: Drimys granadensis. The purpose of this project is to propose an organic alternative to the chemical synthetized products.
Cuervo Salcedo, Daniela   +1 more
core  

From algae to angiosperms–inferring the phylogeny of green plants (Viridiplantae) from 360 plastid genomes [PDF]

open access: yes, 2014
Background Next-generation sequencing has provided a wealth of plastid genome sequence data from an increasingly diverse set of green plants (Viridiplantae).
Brad R Ruhfel   +4 more
core   +2 more sources

Modul guru pembelajar mata pelajaran biologi sekolah menengah atas (SMA) : kelompok kompetensi b [PDF]

open access: yes, 2016
Pengembangan profesionalitas guru melalui program Guru Pembelajar merupakan upaya peningkatan kompetensi untuk semua guru. Sejalan dengan hal tersebut, pemetaan kompetensi guru telah dilakukan melalui uji kompetensi guru (UKG) untuk kompetensi pedagogi ...
Devi, Poppy Kamalia, Soesanti, Nina
core  

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