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Entomopathogenic Nematode Species Vary in Their Behavior and Virulence in Response to Cardiac Glycosides Within and Around Insect Hosts.
J Chem Ecol
January 2025
Department of Nematology, University of California Riverside, Riverside, CA, USA.
Plants produce defensive toxins to deter herbivores. In response, some specialized herbivores evolved resistance and even the capacity to sequester toxins, affecting interactions at higher trophic levels. Here, we test the hypothesis that potential natural enemies of specialized herbivores are differentially affected by plant toxins depending on their level of adaptation to the plant-herbivore system.
View Article and Find Full Text PDFThe diffusible signaling factor family in microbial signaling: a current perspective.
Crit Rev Microbiol
January 2025
Oral Microbiology, Bristol Dental School, University of Bristol, United Kingdom.
This review discusses the chemical properties, synthesis and detection, and biological functions of a molecular group of cis-2-unsaturated fatty acids, containing fatty acid carbon chains of various lengths and cis double-bond configurations, known as the diffusible signaling factor family (DSFF). Early postulation of the conserved nature of the DSFF among Gram-negative bacteria have now been challenged by the latest evidences that unraveled their presence in a various other distinct microorganisms. Over the last decade, a significant depth and breadth of understanding has been made on the multifaceted functions of DSFFs among bacteria, and their interactions with evolutionarily divergent fungi, plants insects and small animals.
View Article and Find Full Text PDFAsGAD1 cloned from creeping bentgrass modulates cadmium tolerance of Arabidopsis thaliana by remodelling membrane lipids and cadmium uptake, transport and chelation.
Physiol Plant
January 2025
College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China.
The gene GAD1 encodes a glutamate decarboxylase, which is a rate-limiting enzyme for the biosynthesis of endogenous γ-aminobutyrate acid (GABA), but a potential role of GAD1 in regulating cadmium (Cd) tolerance needs to be further elucidated in plants. The objective of this study was to investigate Cd tolerance of creeping bentgrass (Agrostis stolonifera) and transgenic yeast (Saccharomyces cerevisiae) or Arabidopsis thaliana overexpressing AsGAD1. The Cd-tolerant creeping bentgrass cultivar LOFTSL-93 accumulated more endogenous GABA in relation to a significant upregulation of AsGAD1 in leaf and root than the Cd-sensitive W66569 in response to Cd stress.
View Article and Find Full Text PDFContrasting habitat associations and ecophysiological adaptations drive interspecific growth differences among Himalayan high-mountain plants.
Ann Bot
January 2025
Institute of Botany, Czech Academy of Sciences, Dukelská 135, 379 01 Třeboň, Czech Republic.
Background And Aims: Understanding interspecific differences in plant growth rates and their internal and external drivers is key to predicting species responses to ongoing environmental changes. Annual growth rates vary among plants based on their ecological preferences, growth forms, ecophysiological adaptations, and evolutionary history. However, the relative importance of these factors remains unclear, particularly in high-mountain ecosystems experiencing rapid changes.
View Article and Find Full Text PDFDistinct patterns of genome size evolution in each bryophyte lineage are not correlated with whole genome duplication.
Ann Bot
January 2025
Agassiz Research and Development Centre, Agriculture and Agri-food Canada, Agassiz, British Columbia, Canada.
Background And Aims: Genome size varies by orders of magnitude across land plants, and the factors driving evolutionary increases and decreases in genome size vary across lineages. Bryophytes have the smallest genomes relative to other land plants and there is growing evidence for frequent whole genome duplication (WGD) across the lineage. However, the broad patterns of genome size, chromosome number, and WGD have yet to be characterized across bryophytes in a phylogenetic context.
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