Results 41 to 50 of about 26,206 (227)

Anatomía del esporofito de Anemia phyllitidis var. phyllitidis (Anemiaceae) de un bosque de ribera (Tucumán, Argentina)

open access: yesActa Botanica Mexicana, 2021
Antecedentes y Objetivos: En Argentina, el género Anemia se encuentra representado por siete especies, una de ellas, A. phyllitidis, con dos variedades. Los antecedentes anatómicos para A. phyllitidis var.
Patricia Liliana Albornoz   +2 more
doaj   +1 more source

Foliar and caulinar anatomy in species of Stemodia (Scrophulariaceae) [PDF]

open access: yes, 2005
Se describe la estructura anatómica foliar y caulinar en el género Stemodia. Son consideradas siete especies: S. ericifolia (Kuntze) K. Schum., S. hyptoides Cham. & Schltdl., S. lanceolata Benth., S. lobelioides Lehm., S. palustris A.
Sosa, María de las Mercedes
core  

Cold hardiness mechanisms and modeling: existing approaches and future avenues

open access: yesNew Phytologist, Volume 249, Issue 6, Page 2668-2682, March 2026.
Summary Cold hardiness models are useful tools to predict cold damage in plants, such as those produced by unseasonal temperature cycles or by increased cold exposure. Although development of these models started about five decades ago, their applications remain limited.
Guillaume Charrier   +3 more
wiley   +1 more source

Estudio prospectivo de sintomatología visual positiva en fase aguda de ictus : incidencia y características [PDF]

open access: yes, 2013
Desconocemos los mecanismos fisiopatológicos subyacentes a la aparición de alucinaciones/alucinosis visual en pacientes con ictus, su incidencia, características y valor predictivo topográfico o pronóstico.
Morenas Rodríguez, Estrella   +2 more
core  

Discrete and cell‐specific hypoxic responses in Arabidopsis roots resolved by single‐nuclei transcriptomics

open access: yesNew Phytologist, Volume 249, Issue 6, Page 2652-2667, March 2026.
Summary With the intensification of unpredictable flooding events because of global warming, there is a need to understand how root cells perceive and respond to oxygen deprivation. The use of high‐throughput single‐nuclei RNA‐sequencing (snRNA‐Seq) allows the examination of gene expression profiles in discrete cell types.
Robert D. Hill   +5 more
wiley   +1 more source

Original Dynamometric and Tomographic evidence of site-specific muscle effects on bone structure. Towards a wider scope on the bone Mechanostat concept [PDF]

open access: yes, 2018
Para analizar el impacto directo de la musculatura sobre la estructura ósea se determinaronel área (CtA), la densidad mineral ósea volumétrica (vDMOc) y los momentos de inerciacorticales para flexión anteroposterior y lateral(MIap, MIlat) ajustados a CtA,
Capozza, Ricardo Francisco   +9 more
core  

Early signals of water limitations begin at the root–soil interface: linking rhizosphere drying to water uptake decline

open access: yesNew Phytologist, Volume 249, Issue 6, Page 2909-2918, March 2026.
Summary Understanding when and where drought stress originates in the soil–plant continuum is essential for predicting plant responses to climate change. While stomatal closure is a well‐known reaction to declining soil moisture, the precise hydraulic trigger remains unresolved.
Sara Di Bert   +8 more
wiley   +1 more source

Shallow crustal structure of the junction of the grabens of Chapala, Tepic-Zacoalco and Colima, Mexico

open access: yesGeofísica Internacional, 1998
Con base en un estudio gravimétrico se ha inferido la estructura cortical del graben de Tepic, en su área adyacente a la ciudad de Guadalajara. Esta depresión, delimitada al norte por la Sierra Madre Occidental y al sur por las sierras graníticas del ...
J. O. Campos-Enríquez   +1 more
doaj   +1 more source

El relieve de los Pirineos [PDF]

open access: yes, 2007
La evolución del relieve de los Pirineos es un buen ejemplo de la interacción entre procesos superficiales y profundos. La elevada topografía media de la cadena es fruto del acortamiento y engrosamiento cortical, hoy inactivo, que se produjo ...
Babault, Julien   +2 more
core   +1 more source

Root tip excision‐induced exodermis lignification impacts lateral root emergence in Brachypodium distachyon

open access: yesNew Phytologist, Volume 249, Issue 6, Page 2894-2908, March 2026.
Summary The mechanisms controlling lateral root emergence in monocots, particularly the role of the exodermis, are poorly understood. We investigated how natural variation in the Brachypodium distachyon stress response shapes root system architecture by modulating cell wall dynamics.
Kevin Bellande   +8 more
wiley   +1 more source

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