Results 31 to 40 of about 5,780,781 (282)

Leaf Colour as a Signal of Chemical Defence to Insect Herbivores in Wild Cabbage (Brassica oleracea). [PDF]

open access: yesPLoS ONE, 2015
Leaf colour has been proposed to signal levels of host defence to insect herbivores, but we lack data on herbivory, leaf colour and levels of defence for wild host populations necessary to test this hypothesis.
Jonathan P Green   +4 more
doaj   +1 more source

Known Predators of Crown-of-Thorns Starfish (Acanthaster spp.) and Their Role in Mitigating, If Not Preventing, Population Outbreaks

open access: yesDiversity, 2017
Predatory release has long been considered a potential contributor to population outbreaks of crown-of-thorns starfish (CoTS; Acanthaster spp.). This has initiated extensive searches for potentially important predators that can consume large numbers of ...
Zara-Louise Cowan   +3 more
doaj   +1 more source

Deterrent activities in the crude lipophilic fractions of Antarctic benthic organisms: chemical defences against keystone predators [PDF]

open access: yesPolar Research, 2014
Generalist predation constitutes a driving force for the evolution of chemical defences. In the Antarctic benthos, asteroids and omnivore amphipods are keystone opportunistic predators.
Laura Núñez-Pons, Conxita Avila
doaj   +1 more source

Bombardier beetles repel invasive bullfrogs [PDF]

open access: yesPeerJ, 2022
Invasive non-native predators negatively affect native species; however, some native species can survive the predation pressures of invasive species by using pre-existing antipredator strategies or evolving defenses against invasive predators.
Shinji Sugiura, Tomoki Date
doaj   +2 more sources

Cyanogenesis of wild lima bean (Phaseolus lunatus L.) is an efficient direct defence in nature. [PDF]

open access: yesPLoS ONE, 2009
In natural systems plants face a plethora of antagonists and thus have evolved multiple defence strategies. Lima bean (Phaseolus lunatus L.) is a model plant for studies of inducible indirect anti-herbivore defences including the production of volatile ...
Daniel J Ballhorn   +3 more
doaj   +1 more source

The relationships between toad behaviour, antipredator defences, and spatial and sexual variation in predation pressure [PDF]

open access: yesPeerJ, 2022
Background Animal behaviour is under strong selection. Selection on behaviour, however, might not act in isolation from other fitness-related traits. Since predators represent outstanding selective forces, animal behaviour could covary with antipredator ...
Francisco Javier Zamora-Camacho
doaj   +2 more sources

Chemical defence in sponges

open access: yesPure and Applied Chemistry, 1986
Abstract
Braekman, Jean Claude, Daloze, Désiré
openaire   +2 more sources

CELLULAR RESPONSES TO DNA DAMAGE AND ONCOGENESIS BY THE p53 AND pRb/E2F PATHWAYS

open access: yesJournal of Dentistry Indonesia, 2015
Cellular responses to stress including DNA damage, show multiple options involving the mechanisms of growth arrest. DNA repair and programmed cell death or apoptosis. Failures in these mechanisms can result in oncogenesis or accelerated senescence.
Elza Ibrahim Auerkari   +6 more
doaj   +1 more source

The Role of Silicon in Antiherbivore Phytohormonal Signalling

open access: yesFrontiers in Plant Science, 2019
The role of plant silicon (Si) in the alleviation of abiotic and biotic stress is now widely recognised and researched. Amongst the biotic stresses, Si is known to increase resistance to herbivores through biomechanical and chemical mechanisms, although ...
Casey R. Hall   +4 more
doaj   +1 more source

Metabolomic assessment of induced and activated chemical defence in the invasive red alga Gracilaria vermiculophylla. [PDF]

open access: yesPLoS ONE, 2011
In comparison with terrestrial plants the mechanistic knowledge of chemical defences is poor for marine macroalgae. This restricts our understanding in the chemically mediated interactions that take place between algae and other organisms.
Göran M Nylund   +3 more
doaj   +1 more source

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