• Publications
  • Influence
Wound-Activated Chemical Defense in Unicellular Planktonic Algae.
  • G. Pohnert
  • Environmental Science
    Angewandte Chemie
  • 1 December 2000
Molecular interactions between the specialist herbivore Manduca sexta (Lepidoptera, Sphingidae) and its natural host Nicotiana attenuata. III. Fatty acid-amino acid conjugates in herbivore oral
TLDR
It is concluded that the biological activity of R is not related to the supply of FAs to the octadecanoid cascade for endogenous jasmonate biosynthesis, but that FACs elicit the herbivore-specific responses by another mechanism and that the insect-produced modification of plant-derived FAs is necessary for the plant's recognition of this specialized Herbivore.
Aldehyde suppression of copepod recruitment in blooms of a ubiquitous planktonic diatom
TLDR
A transgenerational plant–herbivore interaction could explain the recurringly inefficient use of a predictable, potentially valuable food resource—the spring diatom bloom—by marine zooplankton.
Are volatile unsaturated aldehydes from diatoms the main line of chemical defence against copepods
TLDR
The results demonstrate that only certain diatoms inhibit hatching in copepods and that this effect is independent of the EPA content of the diet, which is currently under discussion for its metabolic value and defensive potential.
Diatom/Copepod Interactions in Plankton: The Indirect Chemical Defense of Unicellular Algae
  • G. Pohnert
  • Environmental Science
    Chembiochem : a European journal of chemical…
  • 6 June 2005
TLDR
This review addresses the chemical ecology of the defensive oxylipins formed by diatoms and the question of how these metabolites can act in such a dilute environment.
Biotic interactions of marine algae.
Phospholipase A2 Activity Triggers the Wound-Activated Chemical Defense in the Diatom Thalassiosira rotula
TLDR
The activation of oxylipin-based chemical defense in the diatom Thalassiosira rotula is initiated by phospholipases that act immediately after cell damage, and the mechanism allows the unicellular algae to overcome restrictions arising out of potential dilution of defensive metabolites.
Survey of the Chemical Defence Potential of Diatoms: Screening of Fifty Species for α,β,γ,δ-unsaturated aldehydes
TLDR
This work examined the PUA-production of 50 diatom species (71 isolates) in order to provide a basis for the interpretation of laboratory and field results on the influence of diatom food on the reproductive success of their consumers.
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