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Now showing items 31-40 of 79
Opening Pandora's box: cause and impact of errors on plant pigment studies
(Frontiers Research Foundation, 2015-03-12)
Climate and Human Pressure Constraints Co-Explain Regional Plant Invasion at Different Spatial Scales
(Public Library Science, 2016-10-14)
Alien species invasion represents a global threat to biodiversity and ecosystems. Explaining invasion patterns in terms of environmental constraints will help us to assess invasion risks and plan control strategies. We aim ...
Rapid colour changes in Euglena sanguinea (Euglenophyceae) caused by internal lipid globule migration
(Taylor & Francis, 2018-11-23)
The accumulation of red pigments under chronic stress is a response observed in most
groups of oxygenic photoautotrophs. It is thought that the red pigments in the cell shield
the chlorophyll located underneath from the ...
Activation of violaxanthin cycle in darkness is a common response to different abiotic stresses : a case study in Pelvetia canaliculata
(BioMed Central, 2011-12-26)
Background: In the violaxanthin (V) cycle, V is de-epoxidized to zeaxanthin (Z) when strong light or light combined with other stressors lead to an overexcitation of photosystems. However, plants can also suffer stress in ...
15N Natural Abundance Evidences a Better Use of N Sources by Late Nitrogen Application in Bread Wheat
(Frontiers Media, 2018-06-22)
This work explores whether the natural abundance of N isotopes technique could be used to understand the movement of N within the plant during vegetative and grain filling phases in wheat crop (Triticum aestivum L) under ...
Community Turnover of Wood-Inhabiting Fungi across Hierarchical Spatial Scales
(Public Library Science, 2014-07-24)
For efficient use of conservation resources it is important to determine how species diversity changes across spatial scales. In many poorly known species groups little is known about at which spatial scales the conservation ...
Determining diet from faeces: Selection of metabarcoding primers for the insectivore Pyrenean desman ( Galemys pyrenaicus )
(Public Library Science, 2018-12-14)
Molecular techniques allow non-invasive dietary studies from faeces, providing an invaluable tool to unveil ecological requirements of endangered or elusive species. They contribute to progress on important issues such as ...
Priming of leaf litter decomposition by algae seems of minor importance in natural streams during autumn
(Public Library Science, 2018-09-07)
Allochthonous detritus of terrestrial origin is one of the main energy sources in forested headwater streams, but its poor nutritional quality makes it difficult to use by heterotrophs. It has been suggested that algae ...
Drying and Rainfall Shape the Structure and Functioning of Nitrifying Microbial Communities in Riverbed Sediments
(Frontiers Media, 2018-11-16)
Non-flow periods in fluvial ecosystems are a global phenomenon. Streambed drying and rewetting by sporadic rainfalls could drive considerable changes in the microbial communities that govern stream nitrogen (N) availability ...
Immediate and Legacy Effects of Urban Pollution on River Ecosystem Functioning: a Mesocosm Experiment
(Elsevier, 2019-03)
Effluents from urban wastewater treatment plants (WWTP) consist of complex mixtures of substances that can affect processes in the receiving ecosystems. Some of these substances (toxic contaminants) stress biological ...