Guillaume Charrier

Linking chilling with forcing: ontogenetic competence in process-based tree phenology models

Rui Zhang, Jianhong Lin, Zhijun Li, Jinbin Zheng et autres

Process-based models are widely used for predicting the timing of spring phenological events, such as vegetative bud burst or flowering, in extratropical trees. These models address both the effects of low (chilling) temperatures on rest break (endodormancy release) and those of high …

cn, fr (code pays fourni par la source)

Woody Vegetation Dynamics Beyond the Treeline: Identifying Limiting Processes and Their Tipping Points

Loïc Francon, Katline Charra‐Vaskou, Arthur Bayle, Christophe Corona et autres

ABSTRACT Seasonally snow‐covered arctic and alpine ecosystems are among the fastest‐warming regions on Earth and are undergoing rapid ecological reorganization. Although satellite observations reveal widespread greening, increasing evidence highlights spatial heterogeneity, with instances of localized browning and biomass decline. These spectral trends …

fr, de, ch (code pays fourni par la source)

Dynamique de la végétation ligneuse au-delà de la limite forestière : identification des processus limitants et de leurs points de basculement: Les arbustes de la toundra à un tournant décisif

Loïc Francon, Katline Charra‐Vaskou, Arthur Bayle, Christophe Corona et autres

International audience

Caught a chill? The relationship between canker disease susceptibility and the vulnerability to freeze events in apricot trees

Guillaume Charrier, Katline Charra‐Vaskou, Nathalie Courthieu, Jalayan Lalji et autres

Abstract Bacterial canker remains a major constraint affecting apricot production in South-East of France. It is primarily caused by Pseudomonas syringae , a Gram-negative bacterium, many strains of which exhibit ice nucleation activity. By promoting ice formation at relatively high subzero temperatures, …

fr (code pays fourni par la source)

Bioclimatic analysis of winter physiological reddening in Douglas-fir Pseudotsuga menziesii (Mirb.) Franco

Manon Duvauchelle, Katline Charra-Vaskou, Guillaume Charrier

fr (code pays fourni par la source)

Endodormancy intensity—an unrecognised bud dormancy trait

Rui Zhang, Koen Kramer, Guillaume Charrier, Heikki Hänninen et autres

cn, nl, fr (code pays fourni par la source)

Ice Nucleation and Freezing Consequences in Perennial Plants

Lia Lamacque, Nicolas Dusart, Pierre Amato, Katline Charra‐Vaskou et autres

The precise location where ice forms in plants affects the physical constraint it exerts on the different biological compartments (cells, tissues, organs). It is therefore critical to understand where and how ice nucleates to predict the extent of low temperature damage. On …

fr, fi, at (code pays fourni par la source)

Reduced snow cover at the alpine treeline: resistance and recovery of saplings

Katline Charra‐Vaskou, Guillaume Charrier, Andrea Ganthaler, T. Améglio et autres

Summary At high elevations, tree saplings and shrubs are usually protected by mid‐winter snow cover, although climate change is expected to extend the snow‐free (SF) period. Exposure to winter drought, freeze–thaw events and freezing temperatures will therefore increase, inducing damages to the …

fr, at (code pays fourni par la source)

Cold hardiness mechanisms and modeling: existing approaches and future avenues

Guillaume Charrier, Al P. Kovaleski, B. Wenden, Heikki Hänninen

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. We describe the …

fr, us, cn (code pays fourni par la source)

Temperature sensitivity during forcing tests in walnut trees

Guillaume Charrier

Mean time until budbreak (MTB) after endodormancy release in six different walnut tree genotypes depending on temperature.

fr (code pays fourni par la source)

Forcing_walnut_2008.tab

Guillaume Charrier

Forcing tests published in Charrier et al., 2011. See details in the original publication

fr (code pays fourni par la source)

Weak global trade‐off between frost and drought resistance in trees

Maximilian Larter, Guillaume Charrier, Sylvain Delzon, William M. Hammond et autres

Summary Drought and frost stresses play important roles in determining species distributions, especially at range margins. Understanding how stress resistance traits interact to determine vulnerability to climate change is critical. We developed a large global database of published and new measurements of …

fr, us (code pays fourni par la source)