Results 91 to 100 of about 13,629 (212)
D-МАННИТОЛ ИЗ FRAXINUS EXCELSIOR
The result of chemical study of the barks, fruits and leaves of Fraxinus excelsior L. are discussed in this article. The individual substance has been separated as crystallic form from the sum of alcholic extraction by column chromatography (neutral Al2O3). The chemical structure of this substance is С6H14O6 m.p. 175,0-176,0 °С, [α]D20+20 (c10, H2O).On
openaire +2 more sources
The role of Alpine botanical gardens in integrating germplasm bank collections and mission
This study underscores the vital role of Alpine botanical gardens (ABGs) in safeguarding Europe's alpine biodiversity amid climate change and habitat loss. By acting as living laboratories and reservoirs of plant genetic resources, ABGs bridge ex situ and in situ conservation, supporting ecosystem resilience and informing restoration strategies.
Marco Canella +19 more
wiley +1 more source
Ash dieback caused by Hymenoscyphus pseudoalbidus (anamorph Chalara fraxinea) is a disease that has emerged during the past twenty years. It was first observed in Poland and has expanded over most of the distribution area of European ash (Fraxinus excelsior) in Europe. This thesis comprises four scientific papers. The first reports the production of a
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European ash (Fraxinus excelsior L.) dieback caused by the fungus Hymenoscyphus fraxineus (T. Kowalski) Baral, Queloz, and Hosoya has been affecting European forests since 1992.
Krzysztof Turczański +4 more
semanticscholar +1 more source
Rapid Structural Analysis of Natural Products Using MicroED
The cryoEM method, MicroED used for rapid analysis and structure determination of natural products that remained unattainable by other structural biology methods ABSTRACT Structural analysis of natural products remains challenging due to their inherent complexity and limited availability.
Jieye Lin +3 more
wiley +1 more source
Tree‐health policies must balance identifying likely entry points and deployment of traps, targeted information campaigns and surveillance subsidies for land managers. Our unique, cross‐disciplinary approach can be applied to other pest/pathogen systems to inform tree‐health plans and how to balance resources.
Vasthi Alonso Chávez +11 more
wiley +1 more source
Mapping the next forest generation reveals multiple regeneration gaps across German forests
Our study provides the first nationwide, high‐resolution assessment of forest regeneration, offering a valuable baseline for monitoring forest development. The regeneration density and indicator maps enable forest managers and policymakers to identify regeneration deficits, prioritise adaptive management interventions and contribute to the development ...
Leonie C. Gass, Lisa Hülsmann
wiley +1 more source
Cryopreservation of dormant European ash (Fraxinus excelsior) orthodox seeds [PDF]
We investigated the sensitivity of dormant Polish-provenance Fraxinus excelsior L. seeds to extreme desiccation and liquid nitrogen (LN, -196 degrees C). Germination and seedling emergence tests revealed that the critical water content (WC) of the desiccated seeds was 0.04-0.06 g H(2)O g(-1) dry mass, g g(-1) (0.04 g g(-1) in the germination test and 0.
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Ash dieback caused by the invasive alien fungal pathogen Hymenoscyphus fraxineus often has devastating consequences for the survival, growth and wood quality of Fraxinus excelsior .
J. P. Skovsgaard +9 more
semanticscholar +1 more source
Unmanaged forest swamps benefit saproxylic and soil‐inhabiting crane fly communities
Species richness of both saproxylic and soil‐inhabiting crane flies was consistently higher in unmanaged forests across all habitat types. Soil‐inhabiting species thrived in swamps and ditches, while saproxylic richness was linked to low light and high soil moisture, independent of habitat type.
David Bille Byriel +4 more
wiley +1 more source

