Fusarium oxysporum dispersion by larvae of Cyclocephala modesta, Dyscinetus gagates and Diloboderus abderus in Brazil

Salgado-Neto, Geraldo; Vaz, Marcos André Braz; Guedes, Jerson Vanderlei Carús; Muniz, Marlove Fátima Brião; Blume, Elena

doi:10.1590/0103-8478cr20150471

Cited by 5 publications

(8 citation statements)

References 21 publications

(18 reference statements)

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“…in seed lots is worrying since this fungus is capable of causing the death of seeds and of plants of various species of economic importance (FONSECA-NETO et al, 2016;RAMOS et al, 2014;SALGADO-NETO et al, 2016). Once an area is contaminated with this fungus, its eradication is very difficult -it may remain viable for years in the soil (FONSECA-NETO et al, 2016;SALGADO-NETO et al, 2016). Its presence in a seed lot makes it unviable even when it is present in low levels, due to its high infection potential (RAMOS et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Sanitary quality of Brachiaria brizantha cv. Marandu and Xaraés seeds harvested in different states in Brazil

Martins¹,

Melo²,

Pereira³

et al. 2017

Biosci. J.

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Section: Resultsmentioning

confidence: 99%

Sanitary quality of Brachiaria brizantha cv. Marandu and Xaraés seeds harvested in different states in Brazil

Martins¹,

Melo²,

Pereira³

et al. 2017

Biosci. J.

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“…Similar studies have indicated a symbiotic relationship between F. solani and H. hampei 16 . Larvae of Scarabaiedae such as C. modesta , D. gagates , and D. abderus may spread F. oxysporum inoculum 5 . Fusarium spores are abundant in nature and can be transmitted and dispersed when passing ungerminated through insect alimentary tracts.…”

Section: Discussionmentioning

confidence: 99%

“…Insects transmit some plant diseases and can retain the pathogens in the absence of host plants, contributing to the pathogen’s survival 1 . Some microorganisms can multiply, reproduce, and undergo cyclic changes inside an insect vector 1 – 5 .…”

Section: Introductionmentioning

confidence: 99%

“…(Coleoptera: Curculionidae) 11 , Reticulitermes flavipes (Kollar) (Blattodea: Rhinotermitidae) 12 , Diabrotica speciosa (Germar) (Coleoptera: Chrysomelidae) 13 , Spodoptera littorallis (Boisduval) (Lepidoptera: Noctuidae) 14 , Xyleborus fornicatus (Eichhorn) (Coleoptera: Curculionidae) 15 , Triatoma sp. (Hemiptera: Reduviidae) 16 , 17 , Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae) 16 , 18 , Cyclocephala modesta Burm, Dyscinetus gagates Burm, and Diloboderus abderus Sturm (Coleoptera: Scarabaeidae) 5 .…”

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Dispersion of the soybean root rot by Cycloneda sanguinea (Coleoptera: Coccinellidae)

Salgado-Neto

Vaz

Guedes

et al. 2018

Sci Rep

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The dispersion of pathogenic microorganisms consists of the transport of pathogens from their source to inoculate a new host. Agricultural and economic importance of the Soybean root rot justifies studying this disease, especially the role of insects as dispersers. The aim of this study was to evaluate the role of the ladybird beetle, Cycloneda sanguinea Linnaeus (Coleoptera: Coccinellidae) in the dispersion of pathogens that cause Soybean root rot. Three pathogen species, Macrophomina phaseolina (Tassi) (Sphaeropsidales: Botryosphaeriaceae), Fusarium incarnatum-equiseti species complex (FIESC), and F. commune (Skovgaard) O’Donnell & Nirenberg were isolated from the midgut of ladybird beetles and cultured. Macrophomina phaseolina was identified by morphology while for the other two species, DNA was sequenced. The DNA extracted was amplified in the Internal Transcriber Spacer (ITS) region, sequenced and compared to voucher sequences deposited in the GenBank. Sequences of nucleotide ITS1-5.8 S were identified in the regions of rDNA-ITS4 ribosomal DNA. This is the first report of Macrophomina phaseolina (Tassi) (Sphaeropsidales: Botryosphaeriaceae), Fusarium incarnatum-equiseti species complex (FIESC), and F. commune (Skovgaard) O’Donnell & Nirenberg, being dispersed by C. sanguinea in Brazilian soybean fields.

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“…White grubs (C. modesta and D. gagates) have a rhizophagous action that attacks soybean roots and inoculates Fusarium oxysporum Schlechtendahl emend. Snyder and Hansen, 1940 (Hypocreales: Tuberculariaceae) dispersing root rot in soy crops (SALGADO-NETO et al, 2016). The observed differences in the mortality rate are related to the differing periods of the life cycle between the two species.…”

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White grub (Coleoptera: Melolonthidae) mortality induced by Ophiocordyceps melolonthae

2017

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The occurrence of white grub roots in soybean crops in the South of Brazil has gradually increased. However, there is not information on the biological control of grubs by entomopathogenic fungi. This study aimed to induce infection by Ophiocordyceps melolonthae and analyze longevity in Cyclocephala modesta and Dyscinetus gagates larvae (Coleoptera: Melolonthidae). In the laboratory, Cyclocephala modesta and Dyscinetus gagates had a mortality rate of 85% and 75%, respectively.

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Fusarium oxysporum dispersion by larvae of Cyclocephala modesta, Dyscinetus gagates and Diloboderus abderus in Brazil

Abstract: Fusarium oxysporum dispersion by larvae of Cyclocephala modesta, Dyscinetus gagates and Diloboderus abderus in Brazil.Ciência Rural, v.46, n.6, jun, 2016.

Cited by 5 publications

References 21 publications

Sanitary quality of Brachiaria brizantha cv. Marandu and Xaraés seeds harvested in different states in Brazil

Sanitary quality of Brachiaria brizantha cv. Marandu and Xaraés seeds harvested in different states in Brazil

Dispersion of the soybean root rot by Cycloneda sanguinea (Coleoptera: Coccinellidae)

White grub (Coleoptera: Melolonthidae) mortality induced by Ophiocordyceps melolonthae

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