0000000000584441
AUTHOR
Anna Gajda
Landscape type and floral resources modify plant-pollinator network structure and stability: implications for pathogen exchange. VOODOO Consortium
Pollinators face multiple, potentially interacting threats from human activities. The Biodiversa VOODOO project (https://voodoo-project.eu/) seeks to understand how landscape-use, through its impact on floral resources, affects plant-pollinator communities and the transmission of viruses between pollinator species. We present initial results to show how the architecture of plant-pollinator networks varies among agricultural, habitat mosaic, and urban landscapes, with consequences for co-extinctions. We show how modification of floral resources can affect network structure to shape interspecific transmission of viral pathogens and we provide early results that show how niche overlap among sp…
Landscape type and floral resources modify plant-pollinator network structure and stability: implications for pathogen exchange
Pollinators face multiple, potentially interacting threats from human activities. The Biodiversa VOODOO project (https://voodoo-project.eu/) seeks to understand how land-use, through its impact on floral resources, affects plant pollinator communities and the transmission of viruses between pollinator species. Land-use can modify plant-pollinator network structure (e.g. connectance, nestedness, modularity) in ways that modulate the vulnerability of communities to coextinctions propagated through losses of interspecific links between mutualist partners.Using a Stochastic Co-extinction Model (SCM) we correlated plant-pollinator coextinction cascades with network structure in agricultural, rur…
Substrate specificity screening of oat (Avena sativa) seeds aminopeptidase demonstrate unusually broad tolerance in S1 pocket.
Aminopeptidases are proteolytic enzymes that remove one amino acid at a time from N-terminus of peptidic substrates. In plants, inhibitors of aminopeptidases can find potential applications in agriculture as herbicides. In this report we have used a library of fluorogenic derivatives of natural and unnatural amino acids for substrate specificity profiling of oat (Avena sativa) aminopeptidase. Interestingly, we have found that this enzyme recognizes effectively among the natural amino acids basic residues like Arg and Lys, hydrophobic Phe, Leu and Met, but also to some extent acidic residues Asp and Glu. In the case of unnatural amino acids hydrophobic residues (hPhe and hCha) and basic hArg…