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- W2844483411 abstract "Abstract Root-knot nematodes (RKN; Meloidogyne spp.) can parasitize over 2,000 plant species and are generally considered to be the most agriculturally damaging group of plant-parasitic nematodes worldwide. Infective juveniles (J2) are non-feeding and must locate and invade a host before their reserves are depleted. However, what attracts J2 to appropriate root entry sites is not known. An aim of this research is to identify semiochemicals that attract RKN to roots. J2 of the three RKN species tested are highly attracted to root tips of both tomato and Medicago truncatula . For both hosts, mutants defective in ethylene signaling were found to be more attractive than those of wild type. We determined that cell-free exudates collected from tomato and M. truncatula seedling root tips were highly attractive to M. javanica J2. Using a pluronic gel-based microassay to monitor chemical fractionation, we determined that for both plant species the active component fractionated similarly and had a mass of ~400 based on size-exclusion chromatography. This characterization is a first step toward identification of a potent and specific attractant from host roots that attracts RKN. Such a compound is potentially a valuable tool for developing novel and safe control strategies." @default.
- W2844483411 created "2018-07-19" @default.
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- W2844483411 date "2018-07-18" @default.
- W2844483411 modified "2023-10-16" @default.
- W2844483411 title "Potent Attractant for Root-Knot Nematodes in Exudates from Seedling Root Tips of Two Host Species" @default.
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- W2844483411 doi "https://doi.org/10.1038/s41598-018-29165-4" @default.
- W2844483411 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6052019" @default.
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