Results 31 to 40 of about 4,769 (235)

Terrestrial Ecology: Natural Selection for Mast Seeding [PDF]

open access: yesCurrent Biology, 2020
Mast seeding is a widespread reproductive phenomenon in plants, and testing evolutionary drivers is challenging. New research uses four decades of individual-tree reproduction data and demonstrates selection for hypersensitivity to a weather cue, high temporal variability, and high synchrony with neighbours.
openaire   +2 more sources

Masting effect on canopy greenness and climate response on seed production of Fagus grandifolia subsp. mexicana across the Sierra Madre Oriental, Mexico

open access: yesClimate Change Ecology, 2021
Specific proximate mechanisms as climate spatial fluctuations modify the pattern of synchronic reproduction (masting) or seed production at population level in the Fagus genus worldwide.
Ernesto C. Rodríguez-Ramírez   +3 more
doaj   +1 more source

Characterizing the climatic niche of mast seeding in beech: Evidences of trade-offs between vegetation growth and seed production

open access: yesEcological Indicators, 2021
Masting is a complex mechanism which is mainly driven by a combination of internal plant resources and climatic conditions. While the driving role of climate in masting is being intensively studied, the interplay among climate, seed production ...
S. Bajocco   +6 more
doaj   +1 more source

Geography of masting creates greater synchrony in seed scarcity than in seed abundance. [PDF]

open access: yesProc Natl Acad Sci U S A
Interannually highly variable and synchronized production of large seed crops by perennial plants, called masting, drives resource pulses and famines with cascading effects on food webs. While the spatial scale of masting synchrony is well documented, it remains unclear how synchrony differs between years of seed abundance and failure, and how such ...
Szymkowiak J   +6 more
europepmc   +3 more sources

Mechanisms of mast seeding: resources, weather, cues, and selection [PDF]

open access: yesNew Phytologist, 2016
SummaryMast seeding is a widespread and widely studied phenomenon. However, the physiological mechanisms that mediate masting events and link them to weather and plant resources are still debated. Here, we explore how masting is affected by plant resource budgets, fruit maturation success, and hormonal coordination of cues including weather and ...
Ian S, Pearse   +2 more
openaire   +2 more sources

Integrated PANoptosis Profiling Identifies Immunosuppressive Subtypes and a Prognostic Signature With Functional Validation of MLKL in Glioblastoma

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The prognosis of glioblastoma (GBM) remains highly unfavorable, largely due to high tumor heterogeneity and an immunosuppressive microenvironment. However, the functional role of PANoptosis in this context is poorly understood. Methods Patients were stratified via K‐means clustering. A risk score model was constructed using prognosis‐
Langfei Tian   +6 more
wiley   +1 more source

Differential spatial responses of rodents to masting on forest sites with differing disturbance history

open access: yesEcology and Evolution, 2021
Mast seeding, the synchronized interannual variation in seed production of trees, is a well‐known bottom‐up driver for population densities of granivorous forest rodents.
Frederik Sachser   +3 more
doaj   +1 more source

Fusogenic RNA Nanomodules for Fusion‐Mediated and Multiplexed siRNA Delivery

open access: yesAdvanced Functional Materials, EarlyView.
A fusogenic lipid‐layered RNA nanomodules (L‐CRAMs) enable high‐capacity and long‐lasting siRNA delivery through membrane fusion. These nanomodules carry exceptionally large siRNA payloads, avoid conventional endosomal uptake, and release multiple functional siRNAs through Dicer‐mediated processing.
Sunghyun Moon   +5 more
wiley   +1 more source

Advancing Human Skin Equivalents: The Crucial Role of Neurovascular Integration

open access: yesAdvanced Healthcare Materials, EarlyView.
This review discusses the importance of integrating vascular and peripheral nerve systems into human skin equivalents (HSEs) to better recapitulate native skin physiology. Recent advances in vascularized, innervated, and neurovascularized HSEs are highlighted, together with emerging bioengineering strategies, current challenges, and future ...
Hao Wu   +4 more
wiley   +1 more source

Tick-borne encephalitis (TBE) cases are not random: explaining trend, low- and high-frequency oscillations based on the Austrian TBE time series

open access: yesBMC Infectious Diseases, 2020
Background Why human tick-borne encephalitis (TBE) cases differ from year to year, in some years more 100%, has not been clarified, yet. The cause of the increasing or decreasing trends is also controversial. Austria is the only country in Europe where a
Franz Rubel   +3 more
doaj   +1 more source

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