Results 51 to 60 of about 60,675 (258)

A first draft genome of holm oak (Quercus ilex subsp. ballota), the most representative species of the Mediterranean forest and the Spanish agrosylvopastoral ecosystem “dehesa”

open access: yesFrontiers in Molecular Biosciences, 2023
The holm oak (Quercus ilex subsp. ballota) is the most representative species of the Mediterranean Basin and the agrosylvopastoral Spanish “dehesa” ecosystem.
María-Dolores Rey   +6 more
doaj   +1 more source

Cryopreservation of plant germplasm in Argentina [PDF]

open access: yes, 2007
This review describes the current status of development of methods for cryopreservation (at -196ºC) of plants germplasm in Argentina. Arachis pintoi, a forage legume, has been maintained as seeds using vitrification method. Additionally, apical meristems,
Mroginski, Luis Amado   +1 more
core  

Reduction numbers and initial ideals

open access: yes, 2002
The reduction number r(A) of a standard graded algebra A is the least integer k such that there exists a minimal reduction J of the homogeneous maximal ideal m of A such that Jm^k=m^{k+1}.
Conca, Aldo
core   +1 more source

Long-Term Vegetation Dynamics in a Megadiverse Hotspot: The Ice-Age Record of a Pre-montane Forest of Central Ecuador. [PDF]

open access: yes, 2018
Tropical ecosystems play a key role in many aspects of Earth system dynamics currently of global concern, including carbon sequestration and biodiversity.
Absy   +75 more
core   +6 more sources

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa   +4 more
wiley   +1 more source

Colonization dynamics of arbuscular mycorrhizal fungi (AMF) in Ilex paraguariensis crops: Seasonality and influence of management practices [PDF]

open access: yes, 2020
The yerba mate (Ilex paraguariensis St. Hill.) is a native species from subtropical regions of Argentina, Brazil, Paraguay and Uruguay. Arbuscular mycorrhizal fungi (AMF) are symbiotically associated with 82% of the vegetable species including crops of ...
Abarca, Camila Lucía   +4 more
core   +2 more sources

Development of an Innovative and Functional Yerba Mate—Lychee Beverage: Sensory and Physicochemical Characteristics

open access: yesFood Safety and Health, EarlyView.
A mixed beverage of yerba mate and lychee was developed and optimized. The 70:30 lychee‐to‐mate formulation provided the best balance of antioxidant activity and consumer acceptance, highlighting its potential as a functional beverage. ABSTRACT The development of functional beverages that combine bioactive compounds with sensory appeal is of growing ...
Marcela Moreira Terhaag   +7 more
wiley   +1 more source

Urbanization and Seasonality Increase Introduced Plant Consumption by the World's Southernmost Parrot 城市化与季节性增加了全球最南端鹦鹉对引入植物的取食

open access: yesIntegrative Conservation, EarlyView.
Urbanization may alter bird foraging. Austral Parakeets (Enicognathus ferrugineus) in Patagonia rely on introduced plants in urban areas, especially in winter, despite preferring natives in the wild. This seasonal reliance on introduced species highlights urbanization trade‐offs and underscores the need to manage green areas with native plants to ...
Rocío Bahía   +2 more
wiley   +1 more source

Monitoreo de poblaciones silvestres del género Ilex en la Reserva Natural del Bosque Mbaracayú

open access: yesRevista de la Sociedad Científica del Paraguay, 2019
Dentro de la Reserva Natural del Bosque Mbaracayú se encuentran diversas comunidades vegetales naturales, siendo una de ellas un tipo de formación boscosa conocida popularmente como “ka´a ti” en esta donde se han realizado monitoreos de poblaciones ...
Laura Rodríguez, Claudia Rolón
doaj   +1 more source

Experimental Assessment of the Effects of Substrate Choice on the Duration of Chemical Signals in Fecal Scent‐Marks of Free‐Ranging Iberian Wolves

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Chemical communication, typically based on feces, urine, and glandular secretions, often deposited as substrate scent marks, plays a key role in social organization and communication among many mammals, especially carnivores. This study assesses experimentally whether the type of substrate chosen for fecal deposition and the temperature ...
Elisa Espartosa   +2 more
wiley   +1 more source

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