Results 61 to 70 of about 2,021 (185)
When Timing Matters: Shedding Light on Mechanisms Underlying Host–Pathogen Dynamics in Freshwater
ConservationInvertebrates possess an innate immune system that acts non-specifically against pathogens and is regulated by the circadian clock. Using the host–parasite system, Daphnia magna and its bacterial parasite Pasteuria ramosa, we investigated day–night ...
Anke Schwarzenberger +3 more
doaj +1 more source
EFSA Journal, 2017 EFSA is requested to assess the safety of a broad range of biological agents in the context of notification for market authorisation as sources of food and feed additives, food enzymes and plant protection products.
EFSA Panel on Biological Hazards (BIOHAZ) +36 more
doaj +1 more source
The Red Queen unveils the sexual and mating strategies of flowers
Journal of Ecology, Volume 114, Issue 5, May 2026.Although the conventional wisdom is that floral traits of plants evolved in concert with their mutualistic pollinators, here we showed that several key sexual and mating traits of plants, which modulate their outcrossing strategy, evolved in response to the pressure exerted by their antagonistic insect herbivores.
Carlos Roberto Fonseca +2 more
wiley +1 more source
Journal of Nematology, 2023 Host-associated microbiomes have primarily been examined in the context of their internal microbial communities, but many animal species also contain microorganisms on external host surfaces that are important to host physiology.
Parr McQueen J. +5 more
doaj +1 more source
Waterbirds and Other Drivers of Endoparasite Communities Across a Hierarchy of Spatial Scales
Freshwater Biology, Volume 71, Issue 4, April 2026.ABSTRACT Understanding drivers of parasite community structure is compromised by poor sampling and historical focus on one host‐one parasite systems. Yet parasites are ubiquitous and co‐infections are common. This study aimed to identify how various drivers, ranging from landscape scale (waterbird movements, hydrological connectivity, region, host ...
Sarah Nichols +5 more
wiley +1 more source
Assessment of parasite virulence in a natural population of a planktonic crustacean
BMC Ecology, 2019 Background Understanding the impact of disease in natural populations requires an understanding of infection risk and the damage that parasites cause to their hosts (= virulence).
Eevi Savola, Dieter Ebert
doaj +1 more source
Waterborne transmission largely contributes to the epidemiology of a plankton parasite
Ecology, Volume 107, Issue 3, March 2026.Abstract Understanding how parasites spread is crucial for preventing infections and predicting epidemic dynamics. These efforts are challenging for environment‐borne parasites because transmission is host density‐independent. We monitored the dynamics of Pasteuria ramosa, a common bacterial parasite of Daphnia magna with prolonged free‐living ...
Christina P. Tadiri, Dieter Ebert
wiley +1 more source
PARASITING ABILITY OF PASTEURIA PENETRANS ON PHYTONEMATODES
Journal of Biopesticides, 2012 A survey wasmade in Coimbatore district of Tamil Nadu on Pasteuria penetrans sporeattachment on different phytonematodes and laboratory condition during kharifseason of 2010. The study revealed that the nematodes Meloidogyne incognita,Heterodera cajani, Radopholus similis, Helicotylenchusmulticinctus, Pratylenchus coffeae and Hoplolaimus spp ...
openaire +1 more source
Adhering Pasteuria penetrans endospores affect movements of root-knot nematode juveniles
Phytopathologia Mediterranea, 2012 Pasteuria penetrans is a biological control agent of root-knot nematodes (Meloidogyne spp.), preventing root invasion by second-stage juveniles (J2s), and eventually causing females sterility and death. greatest control effects for P. penetrans depend on
Ioannis VAGELAS +3 more
doaj +1 more source
EFSA Journal, Volume 24, Issue 1, January 2026.Abstract The qualified presumption of safety (QPS) process was developed to provide a harmonised safety assessment approach to support EFSA Scientific Panels and Units. The QPS approach assesses the taxonomic identity, body of relevant knowledge and safety concerns of microorganisms intentionally added to the food and feed chain.
EFSA Panel on Biological Hazards (BIOHAZ) +28 more
wiley +1 more source