The interplay between virus infection and water-related stress is mediated by the plant metabolism of ascorbic acid. [PDF]
New PhytolSummary Plants are often subjected to environmental variations in the context of infection such that virus‐induced and abiotic stresses co‐occur. One such environmental variation is water stress, which strongly impacts plant fitness. Although there is ample evidence of the beneficial effects of plant viruses under drought, the consequences of infection
Jaime C +4 more
europepmc +2 more sources
Urban Tree Growth and Drought Responses Show Evidence of Climate Resilience. [PDF]
Glob Chang BiolUrban trees face increasing risks from climate change, including drought and heatwaves, which threaten their growth and survival. By studying 10 tree species across seven Australian cities, we found that local climate strongly influences tree growth, and that some species are well adapted to urban climates.
Esperon-Rodriguez M +6 more
europepmc +2 more sources
Drying suppresses fine root production to 1 m depths and alters root traits in four distinct tropical forests. [PDF]
New PhytolSummary Drying and drought in tropical forests, which have some of the highest net primary productivity on Earth, are likely to alter root dynamics, ecosystem function, and carbon (C) storage. We used a chronic drying experiment in four lowland Panamanian forests to investigate whether soil drying shifts tropical forest root production from surface to ...
Cordeiro AL +7 more
europepmc +2 more sources
Reactive oxygen species act as signaling molecules to control root hair initiation and tip growth. [PDF]
New PhytolSummary Root hairs (RHs) increase the surface area of roots, facilitating nutrient and water uptake and plant anchorage. RHs form from root epidermal cells and elongate by polar tip growth. Reactive oxygen species (ROS) have recently been implicated as important signals that drive RH formation and elongation using both genetic and imaging approaches ...
Gerber ME, White MG, Muday GK.
europepmc +2 more sources
Integrating data to assess occupancy patterns of an endangered bumble bee. [PDF]
Conserv BiolAbstract There is growing interest in integrating community science data with structured monitoring data to estimate changes in distribution patterns of imperiled species, including pollinators. However, significant challenges remain in determining how unstructured community science data should be incorporated into formal analyses of species ...
Ellis KS +5 more
europepmc +2 more sources
A low-cost protocol for the optical method of vulnerability curves to calculate <i>P</i> <sub>50</sub>. [PDF]
Appl Plant SciAbstract Premise The quantification of plant drought resistance, particularly embolism formation, within and across species, is critical for ecosystem management and agriculture. We developed a cost‐effective protocol to measure the water potential at which 50% of hydraulic conductivity (P50) is lost in stems, using affordable and accessible materials ...
González-Rebeles G +3 more
europepmc +2 more sources
The Unstable Relationship Between Drought Status and Leaf Water Content Complicates the Remote Sensing of Tree Drought Stress. [PDF]
Glob Chang BiolRemote sensing can monitor plant drought stress across ecosystems but is limited by uncertain links between physiological stress and measurements of water content. We examined how water potential and water content, measured in the field, laboratory, and via airborne imaging, vary over time and space in two oak species.
Boving I +5 more
europepmc +2 more sources
Impactos de la sequía hidráulica en el agroecosistema Valle de Caujerí, periodo 2018-2021
Ingeniería Hidráulica y Ambiental, 2023 En los últimos 30 años, los eventos de sequía hidráulica en Guantánamo se han intensificado de manera que han afectado los recursos hídricos disponibles, interfiriendo de manera brusca en el desarrollo de las principales actividades.
Esvillel Ferrer Pozo +2 more
doaj
Tolerancia a sequía y calor en arroz (Oryza sativa)
Ecosistemas y Recursos Agropecuarios, 2018 El objetivo fue determinar la respuesta de genotipos de arroz (Oryza sativa) a la sequía. Se evaluó la tem- peratura del dosel vegetal (Tc) en emergencia de panícula (EP), oración (F) y en el llenado del grano (PLG), además del efecto de la Tc en el ...
Monica Beatriz López-Hernández +5 more
doaj +1 more source
Intensidad y persistencia de la sequía en SW de Guantánamo: uso de índices ISA e IPS
Ingeniería Hidráulica y Ambiental, 2020 Los valores altos y bajas frecuencias de lluvia de esta provincia se localizan en su porción suroccidental. Aquí se describen las condicionantes geográficas locales que determinan esto, se evalúa la intensidad y persistencia de la sequía meteorológica ...
José Evelio Gutiérrez Hernández +2 more
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