title: New insight into the Delia platura Meigen caused alteration in nutrient content of soybean (Glycine max L. Merill).
abstract: Climate change has brought about an increasing level of seedcorn maggot (Delia platura Meigen, 1826) (Diptera: Anthomyiidae) damage in Hungary. In order to have a more accurate understanding of the effects of these plant injuries induced by the larvae of D. platura, the nutrient content of soybean (Glycine max L. Merill.) was studied. Our results show that the moisture, raw fat, raw fibre, and raw ash content of the batches damaged by D. platura were significantly less in comparison with that of the control samples. In response to the deleterious effect of the insect, the infected soybean plants showed forced ripening (P = 0.004) (P > 0.05). The difference of moisture content between damaged and control samples was 2.30% on average. The fact of nutritional value loss was also reflected by the alteration of sugar mobilisation. As the result of this experiment the sucrose breakdown to glucose and fructose during the germination was significantly slower in the damaged seeds than that of the control ones. Overall, this late and surprising damage caused by D. platura led to the forced ripening of the affected soybean plants and a significant change in their nutritional values. Based on the herein reported results, it is presumable that in cases when the current climatic extremities, which are envisaged to occur more frequently in the future, and effects of agricultural practices will be coincided in the future a qualitative change of the produced soybean batches can be expected through the damage caused by this fly species.
authors.affiliation: Department of Plant Production and Protection, Kaposvár University, Faculty of Agricultural and Environmental Sciences , H-7400 Kaposvár, Guba S. u. 40. , Hungary.
authors.forename: Helga Egri
authors.initials: HE
authors.lastname: Bosnyákné
authors.affiliation: Department of Genetics and Molecular Biology, University of Pécs, Faculty of Science , H-7624 Pécs, Ifjúság u. 6. , Hungary.
authors.forename: Ildikó
authors.initials: I
authors.lastname: Kerepesi
authors.affiliation: Department of Plant Production and Protection, Kaposvár University, Faculty of Agricultural and Environmental Sciences , H-7400 Kaposvár, Guba S. u. 40. , Hungary.
authors.forename: Sándor
authors.initials: S
authors.lastname: Keszthelyi
mesh_terms: D000818:Animals; D050260:Carbohydrate Metabolism; D004175:Diptera / Q000196:embryology / Q000472:pathogenicity*; D005506:Food Contamination; D006790:Host-Parasite Interactions; D007814:Larva / Q000472:pathogenicity; D009753:Nutritive Value; D010940:Plant Proteins / Q000378:metabolism; D013025:Glycine max / Q000378:metabolism / Q000469:parasitology*; D013997:Time Factors; D014867:Water / Q000378:metabolism
chemical_list: D010940:Plant Proteins; D014867:Water
keywords: Delia platura; Sugar mobilization; protein change; seedcorn maggot; soybean