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Many plants associate with arbuscular mycorrhizal fungi for nutrient acquisition, while legumes also associate with nitrogen-fixing rhizobial bacteria. Both associations rely on symbiosis signaling and here we show that cereals can perceive lipochitooligosaccharides (LCOs) for activation of symbiosis signaling, surprisingly including Nod factors produced by nitrogen-fixing bacteria. However, legumes show stringent perception of specifically decorated LCOs, that is absent in cereals. LCO perception in plants is activated by nutrient starvation, through transcriptional regulation of Nodulation Signaling Pathway (NSP)1 and NSP2. These transcription factors induce expression of an LCO receptor and act through the control of strigolactone biosynthesis and the karrikin-like receptor DWARF14-LIKE. We conclude that LCO production and perception is coordinately regulated by nutrient starvation to promote engagement with mycorrhizal fungi. Our work has implications for the use of both mycorrhizal and rhizobial associations for sustainable productivity in cereals.
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http://dx.doi.org/10.1038/s41467-022-33908-3 | DOI Listing |
Vet Microbiol
September 2025
College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China. Electronic address:
Rotavirus (RV) is a major cause of gastroenteritis in both humans and many mammals, including livestock. However, information regarding RV in sheep remains limited, particularly in China. This study reports the first isolation and characterization of the G8-P[1]-I2-R2-C2-M2-A11-N2-T6-E2-H3 type sheep RV strain (GS13) in China.
View Article and Find Full Text PDFOrg Biomol Chem
September 2025
Organic Synthesis Laboratory, P. G. Department of Chemistry, Berhampur University, Bhanja Bihar, Odisha, 760007, India.
Herein, we report a visible light-mediated, metal- and photocatalyst-free, green and sustainable synthesis of biologically relevant functionalized benzopyrans by a one-pot, pseudo-multicomponent reaction at room temperature. The notable features of the present protocol include a green and renewable energy source, high yields, easy isolation of the products without performing column chromatography, metal- and photocatalyst-free conditions, room-temperature synthesis, broad substrate scope, environmental friendliness and gram-scale synthesis of the products. In the present study, the benzopyrans are also subjected to molecular docking, which revealed that some benzopyrans are promising potential inhibitors of key nsPs in both Chikungunya and Zika viruses.
View Article and Find Full Text PDFTransbound Emerg Dis
August 2025
College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
Currently, multiple recombinant variants of porcine reproductive and respiratory syndrome virus (PRRSV) are circulating in China. These variants exhibit differences in pathogenicity. To comprehensively understand the current status of the virus and its recombination patterns, a total of 677 PRRSV strains were used for evolutionary analysis, of which 673 strains were isolated from mainland China.
View Article and Find Full Text PDFAntiviral Res
October 2025
Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Frontiers Science Center of Pathogenic Microorganisms and Infection, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China; Shanghai Public Health Cli
Non-structural protein 3 (nsp3), the largest multifunctional membrane-associated protein encoded by coronaviruses, contains a papain-like protease (PLpro) domain that cleaves viral polypeptides at the nsp1/nsp2, nsp2/nsp3 and nsp3/nsp4 junctions, as well as host substrates such as polyubiquitin chains and ISG15. While host substrate recognition by PLpro is well characterized, the processes by which PLpro identifies and interacts with membrane-associated viral substrates remains poorly defined. In this study, we developed full-length nsp3-containg reporter constructs to investigate PLpro-mediated cleavage in a membrane context.
View Article and Find Full Text PDFMol Biotechnol
July 2025
Dengue and Chikungunya Group, ICMR-National Institute of Virology, 20 A, Dr Ambedkar Road, Pune, Maharashtra, 411001, India.
Chikungunya virus (CHIKV) is an arthropod-borne virus that causes debilitating joint pain and fever with limited treatment options. Cinnamic acid, known for its broad-spectrum biological activities, and its derivatives were evaluated for their potential antiviral effects against CHIKV. In vitro experiments assessed the cytotoxicity of cinnamic acid and its derivatives and their efficacy in inhibiting CHIKV under different treatment settings.
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