Results 111 to 120 of about 101,934 (328)

Properties and Functional Analysis of Two Chorismate Mutases from Maritime Pine

open access: yesCells
Through the shikimate pathway, a massive metabolic flux connects the central carbon metabolism with the synthesis of chorismate, the common precursor of the aromatic amino acids phenylalanine, tyrosine, and tryptophan, as well as other compounds ...
Fernando de la Torre   +6 more
doaj   +1 more source

Meteorological versus spatial drivers of the spatial synchrony of forest insect pest outbreaks in North America

open access: yesOikos, EarlyView.
Spatial synchrony of population fluctuations has major consequences for the impacts of forest insect pest outbreaks at regional scales. We tested the predictions that the strength and drivers of this synchrony would differ among species according to their dispersal abilities and feeding guilds.
Kyle J. Haynes   +5 more
wiley   +1 more source

A broad survey of hydraulic and mechanical safety in the xylem of conifers

open access: yesJournal of Experimental Botany, 2014
Summary Torus overlap and tracheid wall thickness are strongly correlated with cavitation resistance based on data from 115 conifer species.
P. Bouche   +6 more
semanticscholar   +1 more source

Species identity and spatial scale drive context‑dependent tree diversity effects in a Finnish forest experiment

open access: yesOikos, EarlyView.
Tree species diversity is known to affect tree growth and leaf traits, which in turn can influence various ecosystem processes. However, the reported direction of these tree diversity effects is inconsistent, indicating that their outcomes depend strongly on ecological context.
Juri A. Felix   +2 more
wiley   +1 more source

Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat

open access: yesFloresta e Ambiente, 2019
Seed coat plays an important role in the embryo protection and seed germination. This study aimed to characterize the anatomical structure, histochemical and physicochemical aspects of the seed coat of Araucaria angustifolia Kuntze.
Danielle Affonso Sampaio   +2 more
doaj   +1 more source

Hydraulic Failure Defines the Recovery and Point of Death in Water-Stressed Conifers[OA]

open access: yesPlant Physiology, 2008
This study combines existing hydraulic principles with recently developed methods for probing leaf hydraulic function to determine whether xylem physiology can explain the dynamic response of gas exchange both during drought and in the recovery phase ...
T. Brodribb, H. Cochard
semanticscholar   +1 more source

Abietic Acid Enhances the Sedative Activity of Diazepam: In vivo Approach along with Receptor Binding Affinity and Molecular Interaction with the GABAergic System

open access: yesChemistryOpen, EarlyView.
Abietic acid (AA) reveals potent sedative potential by expressing fast sleeping onset and increased sleeping duration compare to the control group in thiopental sodium induced sleeping mice. The compound also exhibited notable binding affinity (–7.9 kcal/mol) toward GABAA receptors.
Meher Afroz   +10 more
wiley   +1 more source

Description, Distribution, and Relevance of Viruses of the Forest Pathogen Gremmeniella abietina

open access: yesViruses, 2018
The European race of the ascomycetous species Gremmeniella abietina (Lagerberg) Morelet includes causal agents of shoot blight and stem canker of several conifers in Europe and North America, which are known to host a diverse virome.
Leticia Botella, Jarkko Hantula
doaj   +1 more source

The importance of Silver fir (Abies alba Mill.) in comparison to spruce (Picea abies (L.) Karst.) and oak (Quercus petraea (Matt.) Liebl.) for arboreal Heteroptera communities in Bavarian forests [PDF]

open access: yes, 2005
Heteropteran communities in the canopies of Silver fir (Abies alba) and spruce (Picea abies) were studied at three lowland and three mountainous sites throughout Bavaria using flight-interception traps.
Goßner, Martin
core  

The missing woodland story: Implications of 1700 years of stand‐scale change on ‘naturalness’ and managing remnant broadleaved woodlands

open access: yesPeople and Nature, EarlyView.
Abstract Longer‐term perspectives—equivalent to the lifespans of long‐lived trees—are required to fully inform perceptions of ‘naturalness’ used in woodland conservation and management. Stand‐scale dynamics of an old growth temperate woodland are reconstructed using palaeoecological data.
Annabel Everard   +4 more
wiley   +1 more source

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