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Mostrando ítems 12121-12130 de 29415
A single haplotype hyposensitive to light and requiring strong vernalization dominates Arabidopsis thaliana populations in Patagonia, Argentina
(Wiley Blackwell Publishing, Inc, 2017-07)
The growing collection of sequenced or genotyped Arabidopsis thaliana accessions includes mostly individuals from the native Eurasian and N. African range and introduced North American populations. Here, we describe the ...
Pollen analysis of honeys from the northwest of Argentina: Province of Jujuy
(Taylor & Francis, 2017-04-03)
The palynological characterization of 157 honey samples from three northwesternregions of Argentina (Prepuna, Yungas and Chaco) are presented todetermine their botanical origin and species associations to be able to ...
Root proliferation strategies and exploration of soil patchiness in arid communities
(Wiley Blackwell Publishing, Inc, 2017-11)
Soil patchiness is a key feature of arid rangelands. As root proliferation contributes to soil exploration and resource uptake, it is ecologically relevant to understand how species respond to soil heterogeneity and coexist. ...
Implications of mating system and pollen dispersal indices for management and conservation of the semi-arid species Prosopis flexuosa (Leguminosae)
(Elsevier Science, 2017-06)
Recruitment by fencing of semi-arid trees is a common woodland conservation strategy that may haveboth positive and negative implications. Domestic herbivores can act as efficient dispersal seed agentsbut they can also ...
Competition and growth of a grass–legume mixture fertilised with nitrogen and phosphorus: effect on nutrient acquisition, root morphology and symbiosis with soil microorganisms
(Csiro Publishing, 2016-06)
Achieving a fast initial growth is crucial for legumes because grasses grow more rapidly and compete much better with forbs. In a pot experiment with a nutrient-deficient soil, we added nitrogen (N), phosphorus (P) and N ...
Dinophysis Species Associated with Diarrhetic Shellfish Poisoning Episodes in North Patagonian Gulfs (Chubut, Argentina)
(National Shellfisheries Association, 2015-09)
The marine dinoflagellate genus Dinophysis Ehrenberg is globally distributed in coastal and oceanic waters and can produce lipophilic toxins. These toxins can accumulate in filter-feeding shellfish and cause diarrhetic ...
Improvement in survivorship: The key for population recovery?
(Academia Sinica, 2016)
In northern Patagonia, commercial harvesting of South American sea lions, Otaria flavescens, from 1920 to 1960, decimated its population abundance. Population recovery was not immediate after hunting ceased in 1962. The ...
The sun doesn't shine equally on everyone
(Wiley, 2016-06)
For plants, light is not only a basic energ y staple but also a source ofcrucial environme ntal clues. Plant metabolic and developmentalresponses are exquisitely attuned to variations in light quantity,quality, direction ...
Lipid-Free Antigen B Subunits from Echinococcus granulosus: Oligomerization, Ligand Binding, and Membrane Interaction Properties
(Public Library of Science, 2015-03)
The hydatid disease parasite Echinococcus granulosus has a restricted lipid metabolism, and needs to harvest essential lipids from the host. Antigen B (EgAgB), an abundant lipoprotein of the larval stage (hydatid cyst), ...