Multivariate analysis of toxicological and environmental properties of soil nematicides

Sánchez‐Moreno, Sara; Alonso-Prados, Elena; Alonso‐Prados, José Luis; García-Baudín, J. M.

doi:10.1002/ps.1650

Cited by 22 publications

(14 citation statements)

References 32 publications

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“…The therapeutic approach of controlling RKN population with soil fumigants and other synthetic nematicides, typical of the conventional farming, has shown agronomic and environmental issues (Lewis et al, 1997;Sánchez-Moreno et al, 2009), including adverse impacts on human health (Cockburn et al, 2011). Therefore, many governments worldwide, including the European Union (e.g., Reg.…”

Section: Introductionmentioning

confidence: 99%

Effects of several amendments on organic melon growth and production, Meloidogyne incognita population and soil properties

Abdeldaym

Erriquens

Sasanelli³

et al. 2014

Scientia Horticulturae

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Section: Introductionmentioning

confidence: 99%

Effects of several amendments on organic melon growth and production, Meloidogyne incognita population and soil properties

Abdeldaym

Erriquens

Sasanelli³

et al. 2014

Scientia Horticulturae

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“…and root knot (Meloidogyne spp.) In addition, the use of conventional chemicals such as methyl bromide and aldicarb has now been greatly restricted or prohibited due to toxicological and environmental concerns (Landau & Tucker, 1984;Jackson & Goldman, 1986;UNEP, 1992;Watson et al, 1992;Calvert et al, 1998;Sanchez Moreno et al, 2009). PPNs are believed to account for , 12.5% of annual global crop losses (Chitwood, 2003), with Meloidogyne being arguably the most damaging (Trudgill & Blok, 2001).…”

Section: Introductionmentioning

confidence: 99%

FMRFamide-like peptides in root knot nematodes and their potential role in nematode physiology

Johnston

McVeigh²,

McMaster

et al. 2009

J. Helminthol.

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FMRFamide-like peptides (FLPs) are a diverse group of neuropeptides that are expressed abundantly in nematodes. They exert potent physiological effects on locomotory, feeding and reproductive musculature and also act as neuromodulators. However, little is known about the specific expression patterns and functions of individual peptides. The current study employed rapid amplification of cDNA ends-polymerase chain reaction (RACE-PCR) to characterize flp genes from infective juveniles of the root knot nematodes, Meloidogyne incognita and Meloidogyne minor. The peptides identified from these transcripts are sequelogs of FLPs from the free-living nematode, Caenorhabditis elegans; the genes have therefore been designated as Mi-flp-1, Mi-flp-7, Mi-flp-12, Mm-flp-12 and Mi-flp-14. Mi-flp-1 encodes five FLPs with the common C-terminal moiety, NFLRFamide. Mi-flp-7 encodes two copies of APLDRSALVRFamide and APLDRAAMVRFamide and one copy of APFDRSSMVRFamide. Mi-flp-12 and Mm-flp-12 encode the novel peptide KNNKFEFIRFamide (a longer version of RNKFEFIRFamide found in C. elegans). Mi-flp-14 encodes a single copy of KHEYLRFamide (commonly known as AF2 and regarded as the most abundant nematode FLP), and a single copy of the novel peptide KHEFVRFamide. These FLPs share a high degree of conservation between Meloidogyne species and nematodes from other clades, including those of humans and animals, perhaps suggesting a common neurophysiological role which may be exploited by novel drugs. FLP immunoreactivity was observed for the first time in Meloidogyne, in the circumpharyngeal nerve ring, pharyngeal nerves and ventral nerve cord. Additionally, in situ hybridization revealed Mi-flp-12 expression in an RIR-like neuron and Mi-flp-14 expression in SMB-like neurons, respectively. These localizations imply physiological roles for FLP-12 and FLP-14 peptides, including locomotion and sensory perception.

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“…It is, however, forbidden in most western countries (e.g. the European Union and Canada; in the U.S.A., it is only used on crops not grown for human consumption) because of its high toxicity to humans and nontarget fauna, and high persistence in the environment (Sánchez‐Moreno et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Ant seed predation, pesticide applications and farmers' income from tropical multi‐cropping gardens

Motzke

Tscharntke

Sodhi

et al. 2013

Agri and Forest Entomology

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1 Tropical small-holder farmers rely on sustainable food production. Crop seed predation by ants can cause substantial yield loss and result in high pesticide use. 2 We conducted field experiments and questionnaire-based surveys aiming to assess the effect of sown-seed predation on four crop species (Cucumis sativus, Daucus carota, Capsicum frutescens and Solanum melongena) in 15 vegetable gardens and the resulting impact on the net income of Indonesian farmers. Furthermore, we tested a commonly applied insecticide and herbicide for seed, seedling and plant protection aiming to understand their effect on ant seed predation. 3 We found that the mean percentage of seeds removed per garden was 42.0%, 49.4%, 48.0% and 50.6% for C. sativus, D. carota, C. frutescens and S. melongena, respectively, halving the farmers' income after considering initial and operational costs. Insecticide and herbicide treatments did not affect seed predation success or overall ant abundance, although they had positive and negative effects on ant species-specific abundance. 4 High overall ant abundance caused high seed predation rate in all gardens as a result of a functional redundancy of ant species, which compensated for pesticide-related species loss. 5 Environmentally-friendly and more sustainable practices such as overseeding or seedling production in nurseries could substitute for these inefficient approaches of chemical pest control, although this requires further research.

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Multivariate analysis of toxicological and environmental properties of soil nematicides

Abstract: Evaluating the multiple aspects of toxicological and environmental properties of active substances through PCA is proposed as a helpful tool for initially comparing the complex toxicological behaviour of active substances as plant protection products.

Cited by 22 publications

References 32 publications

Effects of several amendments on organic melon growth and production, Meloidogyne incognita population and soil properties

Effects of several amendments on organic melon growth and production, Meloidogyne incognita population and soil properties

FMRFamide-like peptides in root knot nematodes and their potential role in nematode physiology

Ant seed predation, pesticide applications and farmers' income from tropical multi‐cropping gardens

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