Carrying and Transmission of Eremothecium coryli (Peglion) Kurtzman as a Causal Pathogen of Yeast-Spot Disease in Soybeans by Riptortus clavatus (Thunberg), Nezara antennata Scott, Piezodorus hybneri (Gmelin) and Dolycoris baccarum (Linnaeus)

Kimura, Shigemitsu; Tokumaru, Susumu; Kikuchi, Atsushi

doi:10.1303/jjaez.2008.13

Cited by 18 publications

(13 citation statements)

References 7 publications

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“…coryli is transmitted by six species of pentatomid bugs (Daugherty 1967), but these species do not inhabit Japan. The four stink bug species found in Japan, R. clavatus, N. antennata, P. hybneri and D. baccarum, are known to carry and transmit E. coryli (Kimura et al 2008). In this study, E. ashbyi was also carried and transmitted by R. clavatus, suggesting that E. ashbyi is also transmitted by stink bugs after feeding on infected soybeans.…”

Section: Discussionsupporting

confidence: 52%

“…In this study, E. coryli and E. ashbyi were detected on an overwintering generation of R. clavatus. The carrying rates of E. coryli were approximated to the third generation of R. clavatus collected in late autumn 2006 (Kimura et al 2008). This result suggested that both yeasts overwinter in R. clavatus because the third generation of R. clavatus becomes the overwintering generation.…”

Section: Discussionmentioning

confidence: 94%

“…However, these six pentatomid species are not found in Japan. In recent work, four stink bug species, Riptortus clavatus (Thunberg), Nezara antennata (Scott), Piezodorus hybneri (Gmelin) and Dolycoris baccarum (Linneaus) were found to be associated with this disease in Japan (Kimura et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Eremothecium ashbyi causes soybean yeast-spot and is associated with stink bug, Riptortus clavatus

Kimura¹,

Tokumaru²,

Kuge³

2008

J Gen Plant Pathol

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Many fusiform ascospores observed on soybean seeds with yeast spot disease symptoms differed significantly from those of Eremothecium coryli, the known causal agent of yeast spot disease in soybean. On the basis of morphological and physiological characteristics and sequence data of the internal transcribed spacer regions including the 5.8S rDNA and D1/D2 regions of 26S rDNA, this fungus was identified as E. ashbyi. Pathogenicity of E. ashbyi was confirmed by reinoculation test. This report is the report on E. ashbyi causing soybean yeast spot disease. In addition, this study showed that E. ashbyi was transmitted by the stink bug, Riptortus clavatus, as was E. coryli, the two Eremothecium yeasts may have been acquired when the stink bug fed on infected soybeans and overwintered in this insect species.

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Section: Discussionsupporting

confidence: 52%

Section: Discussionmentioning

confidence: 94%

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Eremothecium ashbyi causes soybean yeast-spot and is associated with stink bug, Riptortus clavatus

Kimura¹,

Tokumaru²,

Kuge³

2008

J Gen Plant Pathol

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“…Insects were surfacesterilized following the method of Kimura et al (2008a). The insects, sterilized cotton puffs soaked with sterile water and seeds of soybean cv.…”

Section: Microscopic Examination Of Field-collected Bugsmentioning

confidence: 99%

“…Recently, we proved that four true bug species, Riptortus pedestris (Fabricius) (=R. clavatus), Nezara antennata Scott, Piezodorus hybneri (Gmelin) and Dolycoris baccarum (Linnaeus), are associated with yeast spot in Japan (Kimura et al 2008a). In addition, E. ashbyi (Guilliermond ex Routien) Batra was shown to cause yeast spot and, E. coryli was transmitted by the true bug R. pedestris (Kimura et al 2008b).…”

Section: Introductionmentioning

confidence: 99%

Mode of transmission and morphological structures of two Eremothecium species between Riptortus pedestris and soybean

Kimura¹,

Tokumaru²,

Kuge³

2008

J Gen Plant Pathol

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Eremothecium ashbyi and E. coryli were present in the maxillary and mandibular stylet pouches of the contaminated heads of the true bug Riptortus pedestris collected during a field survey, 2007. Ascospores of E. ashbyi and E. coryli were taken up in the stylet pouch when R. pedestris fed on soybean seeds infected with the respective fungus. In the case of E. ashbyi, the ascospores had subsequently germinated and were recognized as large masses of mycelia in the stylet pouch. In contrast, masses of E. coryli including buds of irregular size and shape were recognized about 3 days after. These results proved that these yeasts are taken up and become lodged in the stylet pouch when the insect feeds on infected host plants. In stylet sheaths stained with erythrosine, E. ashbyi was found as fragments of mycelia and E. coryli was found as small buds. These observations yield evidence to confirm that E. ashbyi and E. coryli are transmitted as fragments of mycelia and as small buds, respectively, after the insect has fed on infected host plants.

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Effects of temperature on the development, fecundity, and life table parameters of Riptortus pedestris (Hemiptera: Alydidae)

Ahn¹,

Choi²,

Koh³

2018

Appl Entomol Zool

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Carrying and Transmission of Eremothecium coryli (Peglion) Kurtzman as a Causal Pathogen of Yeast-Spot Disease in Soybeans by Riptortus clavatus (Thunberg), Nezara antennata Scott, Piezodorus hybneri (Gmelin) and Dolycoris baccarum (Linnaeus)

Abstract: Carrying and Transmission of Eremothecium coryli (Peglion) Kurtzman as a Causal Pathogen of Yeast-Spot Disease in Soybeans by Riptortus clavatus (Thunberg), Nezara antennata Scott, Piezodorus hybneri (Gmelin) and Dolycoris baccarum (Linnaeus).

Cited by 18 publications

References 7 publications

Eremothecium ashbyi causes soybean yeast-spot and is associated with stink bug, Riptortus clavatus

Eremothecium ashbyi causes soybean yeast-spot and is associated with stink bug, Riptortus clavatus

Mode of transmission and morphological structures of two Eremothecium species between Riptortus pedestris and soybean

Effects of temperature on the development, fecundity, and life table parameters of Riptortus pedestris (Hemiptera: Alydidae)

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