Results 51 to 60 of about 11,350 (255)

Estructura cristalina y molecular de la isonitroso acetanilida [PDF]

open access: yes, 2021
En este trabajo se presenta la estructura cristalina y molecular de la isonitroso acetanilida, que ha sido determinada por medio de la difracción de rayos X. Grupo espacial P 21/c 2i/a 2i/b. Dimensiones de la celda unidad a. : 9.672 Å, b, : 17.,710 Å, c,
Font-Altaba, M.   +2 more
core  

The Altered Expression of microRNA408 Influences the Arabidopsis Response to Iron Deficiency

open access: yesFrontiers in Plant Science, 2019
MicroRNAs contribute to the adaptation of plants to varying environmental conditions by affecting systemic mineral nutrient homeostasis. Copper and iron deficiencies antagonistically control the expression of Arabidopsis thaliana microRNA408 (miR408 ...
Àngela Carrió-Seguí   +5 more
doaj   +1 more source

Waves of range dynamics and gene flow characterize the biogeographic history of Litsea elongata, a dominant tree in East Asian evergreen broadleaved forests

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Evergreen broadleaved forests (EBLFs) represent an iconic vegetation type in subtropical montane East Asia, but they are experiencing intensifying anthropogenic pressure and increasing habitat fragmentation. Here, using a dominant and widespread tree species characteristic of East Asian EBLFs, we examine its phylogeographic history and evaluate what it
Sheng‐Yuan Qin   +7 more
wiley   +1 more source

Estructura cristalina y molecular de la dihidrazida malonica anhidra [PDF]

open access: yes, 1975
[ES] En este trabajo se presenta la estructura cristalina y molecular de la hidracida malónica anhidra. La estructura cristalina ha sido resuelta por difracción de Rayos X.
Font-Altaba, M.   +6 more
core   +1 more source

Exploring eco‐evolutionary and temporal patterns of arbuscular mycorrhizal fungal communities colonizing Sorghum bicolor across sites of contrasting land use history and climate

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Sorghum bicolor is a globally important cereal crop with annual yields exceeding 50 million tons across more than 100 countries and can be grown on marginal lands where conventional agriculture is limited. We examined how eight genetically diverse sorghum genotypes shaped arbuscular mycorrhizal fungal (AMF) community assembly across two contrasting ...
Philip Brailey‐Crane   +8 more
wiley   +1 more source

Deregulated High Affinity Copper Transport Alters Iron Homeostasis in Arabidopsis

open access: yesFrontiers in Plant Science, 2020
The present work describes the effects on iron homeostasis when copper transport was deregulated in Arabidopsis thaliana by overexpressing high affinity copper transporters COPT1 and COPT3 (COPTOE).
Ana Perea-García   +5 more
doaj   +1 more source

Large‐Scale Structural Dynamics in the Tail Fiber Modulate the Infective Transition of the T7 Bacteriophage

open access: yesSmall, EarlyView.
During host recognition, the fibers of T7 bacteriophages transition from a capsid bound state to an extended conformation, which requires some level of fiber flexibility. By using high‐speed atomic force microscopy, we show that the fibers have an internal molecular hinge and a torsionally compliant coiled‐coil region.
Luca Elizabet Kosik   +16 more
wiley   +1 more source

Virus del dengue: estructura de serotipos y epidemiología molecular

open access: yesCienciaUAT, 2012
El dengue es una de las enfermedades virales más importantes en el mundo. El virus del dengue es transmitido a los humanos por la picadura de mosquitos del género Aedes aegypti. Este virus es el agente causal de la fi ebre por dengue, así como sus formas severas: fiebre hemorrágica por dengue y síndrome de shock por dengue.
Stephanie Viridiana Laredo-Tiscareño   +2 more
openaire   +2 more sources

Introduced dung beetles suppress methane emissions from cattle dung and alter the temporal dynamics of greenhouse gas flux Los escarabajos peloteros introducidos suprimen las emisiones de metano del estiércol de ganado y alteran la dinámica temporal del flujo de gases de efecto invernadero Besouros coprófagos introduzidos suprimem as emissões de metano do esterco bovino e alteram a dinâmica temporal do fluxo de gases de efeito estufa

open access: yesEcological Entomology, EarlyView.
Dung beetles suppressed cumulative methane flux from cattle dung by 85% and reduced total greenhouse gas emissions by 18%. Beetle activity accelerated initial CO2 release but did not alter total cumulative flux. N2O and NH3 fluxes were transient and not consistently driven by beetle presence.
Jean Holley   +2 more
wiley   +1 more source

Precisely controlled fabrication, manipulation and in-situ analysis of Cu based nanoparticles

open access: yesScientific Reports, 2018
The increasing demand for nanostructured materials is mainly motivated by their key role in a wide variety of technologically relevant fields such as biomedicine, green sustainable energy or catalysis.
L. Martínez   +11 more
doaj   +1 more source

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