Results 31 to 40 of about 842 (149)

Transgenerational pathogen effects: Maternal pathogen exposure reduces offspring fitness

Ecology, Volume 106, Issue 9, September 2025.
Abstract Pathogens can alter the phenotype not only of exposed hosts, but also of future generations. Transgenerational immune priming, where parental infection drives reduced susceptibility of offspring, has been particularly well explored, but pathogens can also alter life history traits of offspring.
Kristina M. McIntire, Marcin K. Dziuba, Elizabeth B. Haywood, Miles L. Robertson, Megan Vaandrager, Emma Baird, Fiona E. Corcoran, Taleah Nelson, Michael H. Cortez, Meghan A. Duffy   +9 more
wiley   +1 more source

Ectopical expression of bacterial collagen-like protein supports its role as adhesin in host–parasite coevolution

Royal Society Open Science
For a profound understanding of antagonistic coevolution, it is necessary to identify the coevolving genes. The bacterium Pasteuria and its host, the microcrustacean Daphnia, are a well-characterized paradigm for co-evolution, but the underlying genes ...
Benjamin Huessy, Dirk Bumann, Dieter Ebert   +2 more
doaj   +1 more source

TNF Production or TNFR2 Expression Characterize Distinct States of Regulatory T Cells that Cooperate in Treg Expansion in Cancer and Chronic Inflammation

European Journal of Immunology, Volume 55, Issue 9, September 2025.
Tregs exist in two functional states: TNF‐producing Tregs, which are expanded in mouse models of chronic inflammation and cancer, and TNFR2‐expressing Tregs, which dominate and transmit their phenotype to TNF+ Tregs. The two states are characterized by distinct phenotypic and functional features. Created in BioRender. Piconese, S.
Gloria Tucci, Ilenia Pacella, Alessandra Pinzon Grimaldos, Alessandra Rossi, Ilenia Cammarata, Marta Zagaglioni, Giovanna Peruzzi, Valentina Tirelli, Massimo Sanchez, Giuseppe Pietropaolo, Francesca Sozio, Annalisa Del Prete, Valerio Licursi, Vincenzo Barnaba, Silvia Piconese   +14 more
wiley   +1 more source

Isolation of Pasteuria penetrans, an obligate hyper-parasite, infecting root knot nematode, Meloidogyne spp. from the rhizosphere of pulses in India

Egyptian Journal of Biological Pest Control
Background Pasteuria penetrans is a mycelial, endospore forming, obligate, bacterial parasite that has shown enormous potential for biological control of root-knot nematode, Meloidogyne spp.
Rajendran Jagadeeswaran, Bansa Singh, Jyotirmay Dubey   +2 more
doaj   +1 more source

Pre‐Crop Choice Shapes Nematode‐Attached Bacterial Communities Associated With Reduced Pratylenchus penetrans Invasion of Barley Roots

Environmental Microbiology, Volume 27, Issue 9, September 2025.
Plant species vary in how they shape nematode‐suppressive soil microbiomes, and these legacies influence the subsequent crop. Suppressive microbiomes contain specific bacterial taxa that attach to the nematode cuticle, leading to reduced nematode invasion into the root system of the host.
Ahmed Elhady, Xorla Kanfra, Shimaa Adss, Holger Heuer   +3 more
wiley   +1 more source

Resolving the infection process reveals striking differences in the contribution of environment, genetics and phylogeny to host-parasite interactions

BMC Biology, 2011
Background Infection processes consist of a sequence of steps, each critical for the interaction between host and parasite. Studies of host-parasite interactions rarely take into account the fact that different steps might be influenced by different ...
Laforsch Christian, Ben-Ami Frida, Luijckx Pepijn, Duneau David, Ebert Dieter   +4 more
doaj   +1 more source

Master of Puppets: How Microbiota Drive the Nematoda Ecology and Evolution?

Ecology and Evolution, Volume 15, Issue 8, August 2025.
The nematode microbiota can influence life‐history traits, thereby shaping the species' ecology and evolutionary trajectories. ABSTRACT In recent decades, the microbiota has emerged as a key driver of biological functions in metazoans, and nematodes are no exception.
Víctor José Trejo‐Meléndez, Jorge Contreras‐Garduño   +1 more
wiley   +1 more source

Rapid change in host specificity in a field population of the biological control organism Pasteuria penetrans

Evolutionary Applications, 2019
In biological control, populations of both the biological control agent and the pest have the potential to evolve and even to coevolve. This feature marks the most powerful and unpredictable aspect of biological control strategies.
Chang Liu, Amanda Kyle Gibson, Patricia Timper, Levi T. Morran, R. Scott Tubbs   +4 more
doaj   +1 more source

Three's a crowd: The relationship among endoparasites, an epibiont and their Daphnia host

Oikos, Volume 2025, Issue 8, August 2025.
In freshwater communities, organisms interact in a variety of ways, including predation, competition and parasitism. Parasites are ubiquitous, playing an important role in shaping freshwater communities. Endoparasites live within internal organs of their host, while ectoparasites, also known as epibionts, are confined to the external part of the host's
Ofir Hirshberg, Frida Ben‐Ami
wiley   +1 more source

Scientific Opinion on the update of the list of QPS‐recommended biological agents intentionally added to food or feed as notified to EFSA

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), Antonia Ricci, Ana Allende, Declan Bolton, Marianne Chemaly, Robert Davies, Rosina Girones, Lieve Herman, Konstantinos Koutsoumanis, Roland Lindqvist, Birgit Nørrung, Lucy Robertson, Giuseppe Ru, Moez Sanaa, Marion Simmons, Panagiotis Skandamis, Emma Snary, Niko Speybroeck, Benno Ter Kuile, John Threlfall, Helene Wahlström, Pier Sandro Cocconcelli, Günter Klein (deceased), Miguel Prieto Maradona, Amparo Querol, Luisa Peixe, Juan Evaristo Suarez, Ingvar Sundh, Just M. Vlak, Margarita Aguilera‐Gómez, Fulvio Barizzone, Rosella Brozzi, Sandra Correia, Leng Heng, Frédérique Istace, Christopher Lythgo, Pablo Salvador Fernández Escámez   +36 more
doaj   +1 more source