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Plants evolve diverse communication systems in adapting to complex and variable environments. Here, we examined the relationship between plant architecture, population density and inter-plant communication within tree species. We tested the hypothesis that trees of species with complex architecture or high population density (high population density: HPD) communicate among conspecifics via volatiles.
View Article and Find Full Text PDFPhytol-induced interplant signaling in maize facilitates EXP-A20-driven resistance through ACO31-dependent ethylene accumulation against Ostrinia furnacalis.
Plant J
January 2025
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
Article Synopsis
- - Plants like maize have developed advanced defenses against insect attacks, including the production of lignin and the ability to communicate stress signals to neighboring plants when infested by pests like Spodoptera frugiperda, enhancing their collective defense mechanisms.
- - The protein EXP-A20 plays a critical role in mediating maize's defense response by facilitating the synthesis of key hormones like ethylene, which is essential for activating protective measures against pests such as Ostrinia furnacalis.
- - This research uncovered that the volatile compound phytol can enhance defense responses but relies on EXP-A20 for its effectiveness, suggesting a significant connection between hormone signaling and cell wall defense strategies, and pointing towards new strategies for improving pest resistance in maize. *
Herbivore-induced volatiles reduce the susceptibility of neighboring tomato plants to transmission of a whitefly-borne begomovirus.
J Exp Bot
October 2024
Ministry of Agriculture and Rural Affairs Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), Hubei Engineering Technology Center for Pest Forewarning and Management, College of Agriculture, Yangtze University, Jingzhou, Hubei 434025, China.
Plant viruses exist in a broader ecological community that includes non-vector herbivores that can impact vector abundance, behavior, and virus transmission within shared host plants. However, little is known about the effects of non-vector herbivore infestation on virus transmission by vector insects on neighboring plants through inter-plant airborne chemicals. In this study, we investigated how volatiles emitted from tomato plants infested with the two-spotted spider mite (Tetranychus urticae) affect the infection of neighboring plants by tomato yellow leaf curl virus (TYLCV) transmitted by whitefly (Bemisia tabaci).
View Article and Find Full Text PDFPlant-plant communication in Camellia japonica and C. rusticana via volatiles.
Sci Rep
March 2024
Graduate School of Science and Technology, Niigata University, Niigata, 950-2181, Japan.
Plants emit volatile compounds when they are subjected to herbivorous, pathogenic, or artificial damages. Both the damaged plant and the neighboring intact plants induce resistance when they receive these volatiles, a phenomenon known as plant-plant communication. However, field observations of this phenomenon are limited.
View Article and Find Full Text PDFTrichoderma hamatum can act as an inter-plant communicator of foliar pathogen infections by colonizing the roots of nearby plants: A new inter-plant "wired communication".
Plant Sci
May 2023
Group of Genetics, Breeding and Biochemistry of Brassicas, Mision Biologica de Galicia (MBG-CSIC), 36143 Pontevedra, Spain.
Trichoderma is a genus of filamentous fungi widely studied and used as a biological control agent in agriculture. However, its ability to form fungal networks for inter-plant communication by means of the so-called inter-plant "wired communication" has not yet been addressed. In our study we used the model plant Arabidopsis thaliana, the fungus Trichoderma hamatum (isolated from Brassicaceae plants) and the pathogens Sclerotinia sclerotiorum and Xanthomonas campestris (necrotrophic fungus and hemibiotrophic bacteria, respectively).
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