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Plant essential oils (EOs) are gaining interest as biopesticides for crop protection. EOs have been recognized as important ingredients of plant protection products including insecticidal, acaricidal, fungicidal, and nematicidal agents. Considering the growing importance of EOs as active ingredients, the domestication and cultivation of Medicinal and Aromatic Plants (MAPs) to produce chemically stable EOs contributes to species conservation, provides the sustainability of production, and decreases the variations in the active ingredients. In addition to these direct effects on plant pests and diseases, EOs can induce plant defenses (priming effects) resulting in better protection. This aspect is of relevance considering that the EU framework aims to achieve the sustainable use of new plant protection products (PPPs), and since 2020, the use of contaminant PPPs has been prohibited. In this paper, we review the most updated information on the direct plant protection effects of EOs, focusing on their modes of action against insects, fungi, and nematodes, as well as the information available on EOs with plant defense priming effects.
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http://dx.doi.org/10.3390/plants11162144 | DOI Listing |
J Econ Entomol
September 2025
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
The ability of parasitoid wasps to precisely locate hosts in complex environments is a key factor in suppressing pest populations. Chemical communication plays an essential role in mediating insect behaviors such as locating food sources, hosts, and mates. Odorant receptors (ORs) are the key connection between external odors and olfactory nerves.
View Article and Find Full Text PDFJ Agric Food Chem
September 2025
College of Materials and Chemistry & School of Plant Protection, Anhui Agricultural University, Hefei, 230036, P. R. China.
In recent years, the hydrazide skeleton, as a pivotal class of nitrogen-containing structures, has garnered considerable attention in medicinal chemistry and organic synthesis owing to its unique chemical versatility and broad-spectrum biological activities. In this study, a series of thiazole-containing benzoylhydrazine derivatives -, -, and - with structural divergence from conventional hydrazide-based molecular frameworks were designed, synthesized, and evaluated for their antifungal/antioomycete activities. The antifungal/antioomycete assay showed that some of the targeted compounds exhibited remarkable and broad-spectrum antifungal activities.
View Article and Find Full Text PDFChem Biodivers
September 2025
Key Lab of Natural Product Chemistry and Application at Universities of Education, Department of Xinjiang Uygur Autonomous Region, School of Chemistry and Chemical Engineering, Yili Normal University, Xinjiang, China.
The persistent threat posed by phytopathogenic fungi to agricultural systems underscores the critical need for novel fungicides. Here, we synthesized and characterized a series of novel acridospiroisoxazole derivatives (H1-H36) using H/C NMR and mass spectrometry. The absolute configuration of compound H23 was confirmed using single-crystal x-ray diffraction analysis.
View Article and Find Full Text PDFJ Appl Genet
September 2025
Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, 40-032, Katowice, Poland.
Mechanical wounding triggers rapid transcriptional and hormonal reprogramming in plants, primarily driven by jasmonate (JA) signalling. While the role of JA, ethylene, and salicylic acid in wound responses is well characterised, the contribution of strigolactones (SLs) remains largely unexplored. Here, for the first time, it was shown that SLs modulate wound-induced transcriptional dynamics in Arabidopsis thaliana.
View Article and Find Full Text PDFVet Res Commun
September 2025
Department of Aquaculture, Faculty of Fisheries, Cukurova University, Adana, Turkey.
This study evaluated how dietary black seed oil (Nigella sativa L.) against the diazinon waterborne toxicity on Nile tilapia (Oreochromis niloticus), focusing on growth performance, hematological and biochemical parameters as well as oxidative stress markers and histological changes. A 40-day feeding trial was carried out using four experimental groups: Group 1 (control group), Group 2 (N.
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