Results 41 to 50 of about 8,119 (178)

Integrating infection intensity and aggregation into the dynamics of pathogens with within‐host replication

Journal of Animal Ecology, EarlyView.
We bridge micro‐ and macroparasite theory with a model tracking pathogen load heterogeneity. By incorporating load‐dependent mortality and within‐host pathogen growth, we show how pathogen load aggregation alters disease prevalence, host suppression effects, and virulence evolution, providing insights for managing complex infectious disease like ...
Ruijiao Sun, Jason Cosens Walsman, Mark Wilber, Cheryl J. Briggs   +3 more
wiley   +1 more source

Spillover dynamics and asynchronous temporal fluctuations in host density and competence drive fungal parasite persistence in multi‐host, seasonal communities

Journal of Animal Ecology, EarlyView.
In this study, the authors develop a new model to show that species contributions to parasite persistence can have strong, asynchronous temporal variability, often limiting the effectiveness of targeted seasonal parasite control. The model is broadly applicable for partitioning who, when, and what drive parasite persistence in multi‐host seasonal ...
Sarah A. R. Schrock, Joseph A. DeMarchi, Billy J. Gardner, Matthew J. Gray, Michel E. B. Ohmer, Mark Q. Wilber   +5 more
wiley   +1 more source

CP32, a novel anti‐oomycete cyclic peptide, interferes with cell‐wall deposition in Phytophthora infestans

Journal of Integrative Plant Biology, EarlyView.
The small cyclic peptide CP32 effectively inhibits Phytophthora infestans, the causal agent of potato and tomato late blight. Combined biochemical and phenotypic analyses demonstrate that CP32 disrupts cell wall biosynthesis, a key process in pathogen infection, resulting in a marked reduction of disease symptoms in plants.
Demetrio Marcianò, Stefano Rosa, Elena Marone Fassolo, Chiara Bertaso, Andrea Tagliani, Nina Gauri Capra, Federico Ballabio, Chiara Mizzotti, Giulia Rizzi, Sadia Fida Ullah, Lisa Kappel, Lucia Feni, Luca Tadini, Louise Jane Gourlay, Rosaria Russo, Vincent Bulone, Sabrina Pricl, Sandrine Ongeri, Sara Pellegrino, Carlo Camilloni, Silvia Laura Toffolatti, Vaibhav Srivastava, Paolo Pesaresi, Simona Masiero   +23 more
wiley   +1 more source

Giant kelp (Macrocystis pyrifera) gametophytes grow endophytically in red macroalgae: Implications for kelp restoration

Journal of Phycology, EarlyView.
Abstract Giant kelp (Macrocystis pyrifera) forests have declined by 95% in Australia since the 1970s due to climate change. Despite expanding restoration efforts, long‐term recovery is still lacking. Factors influencing recruitment by the microscopic gametophyte phase may represent a key mechanism underpinning the successful recovery and restoration of
Tamzin Gannon, Wouter Visch, Christopher P. Burridge, Adam Smolenski, Sharee McCammon, Ellen Gunn, Jeffrey T. Wright, Catriona L. Hurd, Scott Bennett   +8 more
wiley   +1 more source

Zoospore interspecific signaling promotes plant infection by Phytophthora

BMC Microbiology, 2010
Background Oomycetes attack a huge variety of economically and ecologically important plants. These pathogens release, detect and respond to signal molecules to coordinate their communal behaviors including the infection process.
Zhou Zhaohui S, Lee Bobby WK, Richardson Patricia A, Tyler Brett M, Kong Ping, Hong Chuanxue   +5 more
doaj   +1 more source

Interactional Endocytosis and Transmembrane Transport Promote Cellular Internalization of Nano‐Delivered RNA Drugs for Efficient Control of Crop Diseases

Plant Biotechnology Journal, EarlyView.
ABSTRACT Botrytis cinerea is a widespread plant pathogenic ascomycete that causes grey mould in over 1400 species and impacts global crop yields. Double‐stranded RNA (dsRNA)‐induced gene silencing is a promising technology for pest control, but efficient delivery remains a major challenge.
Mei Guan, Chao Xie, Yang Xue, Juan Lu, Qinhong Jiang, Meizhen Yin, Shuo Yan, Jie Shen   +7 more
wiley   +1 more source

Genes expressed in zoospores of Phytophthora nicotianae

Molecular Genetics and Genomics, 2003
The genus Phytophthora includes many highly destructive plant pathogens. In many Phytophthora species, pathogen dispersal and initiation of plant infection are achieved by motile, biflagellate zoospores that are chemotactically attracted to suitable infection sites.
Skalamera, D., Wasson, A. P., Hardham, A. R.   +2 more
openaire   +5 more sources

Enzymatic Investigation of Spongospora subterranea Zoospore Attachment to Roots of Potato Cultivars Resistant or Susceptible to Powdery Scab Disease

Proteomes, 2023
For potato crops, host resistance is currently the most effective and sustainable tool to manage diseases caused by the plasmodiophorid Spongospora subterranea.
Xian Yu, Richard Wilson, Alieta Eyles, Sadegh Balotf, Robert Stephen Tegg, Calum Rae Wilson   +5 more
doaj   +1 more source

Alcoholic extracts of Russian sage (Salvia yangii) contain bioactive terpenoids with inhibitory activity against grapevine downy mildew (Plasmopara viticola)

Pest Management Science, Volume 82, Issue 9, Page 8159-8170, September 2026.
Alcoholic extracts from flowers, leaves, and shoots of Russian sage decreased downy mildew severity on grapevine leaf disks. Fractionation followed by metabolomic analysis revealed putative terpenoids as the main components of the active fractions. Specifically, 7‐methylrosmanol, 12‐O‐methylcarnosic acid, carnosic acid, and carnosol were identified as ...
Anna Smaldone, Oscar Giovannini, Martina Magni, Michael Oberhuber, Peter Robatscher, Michele Perazzolli   +5 more
wiley   +1 more source

Towards a food web based control strategy to mitigate an amphibian panzootic in agricultural landscapes

Global Ecology and Conservation, 2020
While the emerging amphibian disease chytridiomycosis is causing dramatic and ongoing biodiversity losses worldwide, sustainable strategies to mitigate this global threat to amphibians are currently missing.
Arne Deknock, Peter Goethals, Siska Croubels, Luc Lens, An Martel, Frank Pasmans   +5 more
doaj   +1 more source