Results 71 to 80 of about 27,918 (288)

Angiosperm life cycle diagram [PDF]

open access: yes, 2011
It shows the flower structure of an angiosperm during the flowering processComponente Curricular::Ensino Médio ...
Ruiz, Mariana
core  

A case of budding speciation in the California Floristic Province and infraspecific divergence in Abronia villosa

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Budding speciation occurs when peripheral populations adapt to local ecological conditions and “bud” off from a widespread progenitor species. Traditionally regarded as rare because of its sympatric and parapatric nature, budding speciation is largely understudied.
Eli J. Allen   +3 more
wiley   +1 more source

Dispersed angiosperm cuticles [PDF]

open access: yes, 1989
Phytodebris, Notes for a Workshop on the Study of Fragmentary Plant Remains. Organized and edited by Bruce H. Tifhey for the meeting of the Paleobotanical Section of the Botanical Society of America, Toronto, Canada, August 6, 1989, pp.
Upchurch, Garland R.
core  

Expanded application to plant reproductive tissues of a branched DNA probe‐based in situ hybridization method

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Detecting clear tissue‐ and organ‐specific patterns of gene expression is key to understanding the genetic mechanisms that control plant development. In situ hybridization (ISH) of mRNA is one of the most precise, yet most challenging approaches to gene expression assays.
Brooklyn M. Anaya   +3 more
wiley   +1 more source

Early Cretaceous Archaeamphora is not a carnivorous angiosperm

open access: yesFrontiers in Plant Science, 2015
Archaeamphora longicervia H.Q.Li was described as an herbaceous, Sarraceniaceae-like pitcher plant from the mid Early Cretaceous Yixian Formation of Liaoning Province, northeastern China. Here, a re-investigation of A.
William Oki Wong   +4 more
doaj   +1 more source

Resistance of cowpea [Vigna unguiculata (l.) Walp.] to Striga gesnerioides (Willd.) Vatke, a parasitic angiosperm [PDF]

open access: yes, 1993
An in vitro growth system was used to investigate the expression of resistance of cowpea [Vigna unguiculata (L.) Walp.] varieties B301 and 58-57 to the angiosperm parasite Striga gesnerioides (Willd.) Vatke.
Terry, P. J.   +7 more
core   +1 more source

Enabling the study of gene function in gymnosperms: Virus‐induced gene silencing in Ephedra tweedieana

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise As the sister clade to angiosperms, extant gymnosperms are crucial for reconstructing ancestral gene regulatory networks in seed plants. This highlights the need for model systems representing each of their distinct lineages. However, tools to quickly and effectively investigate gene function in gymnosperms are still limited due to the
Anthony G. K. Garcia   +4 more
wiley   +1 more source

PHYLOGENETIC RELATIONSHIPS AMONG CERTAIN SPECIES OF ASTRAGALUS L., 1753 (FABALES, FABACEAE) IN SOUTHEASTERN OF IRAQ

open access: yesBulletin of the Iraq Natural History Museum
In the current study, eight species of Astragalus L.,1753 (Fabales, Fabaceae): A.annularis Forssk,1775, A. asterias Steven,1832, A. bruguieri Boiss.,1849, A. dactylocarpus Boiss., 1843, A. fasciculifolius Boiss.,1843, A. hamosus L.,1753, A. spinosus (
Sadeq Sabeeh Kareem Al-Taie
doaj   +1 more source

Angiosperm ovules: diversity, development, evolution [PDF]

open access: yes, 2017
Background Ovules as developmental precursors of seeds are organs of central importance in angiosperm flowers and can be traced back in evolution to the earliest seed plants.
Endress, Peter K.
core  

On the Origin of Angiosperms. [PDF]

open access: yesJournal of the Linnean Society of London, Botany, 1907
n ...
Arber, E. A. Newell   +3 more
openaire   +2 more sources

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