論文 - 安達 鉄矢
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Plant preference of Nesidiocoris tenuis (Hemiptera: Miridae) between tomato and a banker plant, Cleome hassleriana 査読あり 国際誌
Ryohei Nakano, Takayuki Mitsunaga, Tetsuya Adachi-Hagimori
Applied Entomology and Zoology 60 191 - 199 2025年5月
担当区分：最終著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Tetsuya Adachi-Hagimori, Serguei V. Triapitsyn, Takuya Endou
Journal of Asia-Pacific Entomology 28 ( 1 ) 102379 - 102379 2025年3月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Asia-Pacific Entomology
The okra leafhopper, Amrasca (Sundapteryx) biguttula (Ishida) (Hemiptera: Cicadellidae), is an economically important pest of okra, Abelmoschus esculentus (L.) Moench (Malvaceae), in southern Japan including Chichijima and Hahajima, Ogasawara (Bonin) Islands. Parasitoids of A. biguttula in the Ogasawara Islands revealed that only one species, Stethynium empoascae Subba Rao (Hymenoptera: Mymaridae), parasitizes its eggs there. A possibility of a biological control program against the okra leafhopper on Ogasawara Islands by introducing its other known egg parasitoids from southern Japan is discussed.
DOI： 10.1016/j.aspen.2025.102379
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黄色灯照射が飼料用トウモロコシの生育段階の推移に及ぼす影響 査読あり
石垣元気, 安達鉄矢
日本草地学会誌 70 ( 4 ) 180 - 184 2025年1月
担当区分：最終著者 記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Triapitsyn S.V., Adachi-Hagimori T.
Applied Entomology and Zoology 59 ( 3 ) 279 - 285 2024年8月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Applied Entomology and Zoology
The fairyfly Cosmocomoidea tenuis Xu, Lin and Hu (Hymenoptera: Mymaridae), which was previously known only from mainland China (Fujian) and Taiwan, is for the first time recorded from Japan where it was reared from organic kiwifruit, Actinidia chinensis and A. deliciosa (Actinidiaceae), leaves in Yamanashi Prefecture on Honshu Island. Both sexes of C. tenuis are redescribed and illustrated based on specimens from Japan. Its apparent host association with black-tipped leafhopper Bothrogonia ferruginea (Fabricius) (Hemiptera: Cicadellidae: Cicadellinae) is discussed. This sharpshooter leafhopper is a common but minor pest in organic vineyards and kiwifruit orchards in Japan and a known vector of the phytopathogenic bacterium Xyllella fastidiosa on cultivated grapes in Taiwan. Egg parasitoids of B. ferruginea, a widespread species in parts of Asia, have been previously unknown. Cosmocomoidea tenuis is also identified as an egg parasitoid of another known vector of X. fastidiosa in Taiwan, a sharpshooter (Cicadellinae) leafhopper Kolla paulula (Walker).
DOI： 10.1007/s13355-024-00877-6
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Rickettsia induces strong cytoplasmic incompatibility in a predatory insect 査読あり 国際誌
Yuta Owashi, Hiroshi Arai, Tetsuya Adachi-Hagimori, Daisuke Kageyama
Proceedings of the Royal Society B: Biological Sciences 291 ( 2027 ) 2024年7月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the Royal Society B: Biological Sciences
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Tashiro K., Ishitani M., Murai S., Niimi M., Tobisa M., Idota S., Adachi-Hagimori T., Ishii Y.
AgriEngineering 6 ( 2 ) 1847 - 1858 2024年6月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AgriEngineering
This study assesses the impact of defoliation applied to three developmental stages across three cropping seasons from 2021 to 2023 on growth, yield and forage quality in maize. The experimental design included three treatments: defoliation of three expanded leaves at the 3rd–4th leaf stage (DF1), the 5th–6th expanded leaves by leaf punch (DF2) and expanding leaves with the DF2 treatment (DF3) at the 6th–7th leaf stages, compared with no defoliation (control). Over three years, the most significant decrease in dry matter (DM) yield occurred in DF1 during spring sowing, while in summer sowing, the largest reduction was in DF3, both of which were correlated with changes in the number of grains per ear. The DM yields at harvest were positively correlated with plant leaf areas at the silking stage. The digestibility of forage in in vitro DM decreased concomitantly with an increase in acid detergent fiber content, indicating a decrease in forage quality. Given the frequent severe damage observed in summer sown maize and the detrimental effects of early growth stage leaf feeding on quality and quantity of spring sown maize, the application of registered insecticides is advised to reduce pest damage to maize crops.
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Fairyfly egg parasitoids (Hymenoptera: Mymaridae) of the invasive lace bug Corythucha marmorata (Uhler) (Hemiptera: Tingidae) in Japan 査読あり 国際共著
Serguei V. Triapitsyn, Yoshiaki Yasuhara, Tetsuya Adachi-Hagimori, Morio Tsukada
Journal of Asia-Pacific Entomology 27 ( 1 ) 102201 - 102201 2024年3月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Microbiome of Zoophytophagous Biological Control Agent Nesidiocoris tenuis 査読あり
Owashi Y., Minami T., Kikuchi T., Yoshida A., Nakano R., Kageyama D., Adachi-Hagimori T.
Microbial Ecology Published online 2023年9月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Microbial Ecology
Many insects are associated with endosymbionts that influence the feeding, reproduction, and distribution of their hosts. Although the small green mirid, Nesidiocoris tenuis (Reuter) (Hemiptera: Miridae), a zoophytophagous predator that feeds on plants as well as arthropods, is a globally important biological control agent, its microbiome has not been sufficiently studied. In the present study, we assessed the microbiome variation in 96 N. tenuis individuals from 14 locations throughout Japan, based on amplicon sequencing of the 16S ribosomal RNA gene. Nine major bacteria associated with N. tenuis were identified: Rickettsia, two strains of Wolbachia, Spiroplasma, Providencia, Serratia, Pseudochrobactrum, Lactococcus, and Stenotrophomonas. Additionally, a diagnostic PCR analysis for three typical insect reproductive manipulators, Rickettsia, Wolbachia, and Spiroplasma, was performed on a larger sample size (n = 360) of N. tenuis individuals; the most prevalent symbiont was Rickettsia (69.7%), followed by Wolbachia (39.2%) and Spiroplasma (6.1%). Although some symbionts were co-infected, their prevalence did not exhibit any specific tendency, such as a high frequency in specific infection combinations. The infection frequency of Rickettsia was significantly correlated with latitude and temperature, while that of Wolbachia and Spiroplasma was significantly correlated with host plants. The predominance of these bacteria and the absence of obligate symbionts suggested that the N. tenuis microbiome is typical for predatory arthropods rather than sap-feeding insects. Rickettsia and Wolbachia were vertically transmitted rather than horizontally transmitted from the prey. The functional validation of each symbiont would be warranted to develop N. tenuis as a biological control agent.
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Egg parasitoids (Hymenoptera: Mymaridae and Trichogrammatidae) of okra leafhopper, Amrasca biguttula (Ishida) (Hemiptera: Cicadellidae), in southern Japan 査読あり 国際共著
Tetsuya Adachi-Hagimori, Serguei V. Triapitsyn, Paul F. Rugman-Jones
Journal of Asia-Pacific Entomology 26 ( 1 ) 102041 - 102041 2023年3月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Revised molecular characterization of Gonatocerus cincticipitis Sahad (Hymenoptera: Mymaridae), an egg parasitoid of green rice leafhopper Nephotettix cincticeps (Uhler) (Hemiptera: Cicadellidae) in Japan 査読あり 国際共著
Serguei V. Triapitsyn, Hiroki Kusuhara, Paul F. Rugman-Jones, Tetsuya Adachi-Hagimori
Journal of Asia-Pacific Entomology 26 ( 2 ) 102069 - 102069 2023年3月
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Genetic analysis reveals conspecificity of two nominal species of Anaphes fairyflies (Hymenoptera: Mymaridae), egg parasitoids of Oulema leaf beetle (Coleoptera: Chrysomelidae) pests of cereal crops in Europe and of rice in East Asia 査読あり 国際共著
Triapitsyn, S. V., P. F. Rugman-Jones, H. Kusuhara, R. Nakano, P. Janšta, S. Arikawa, T. Adachi-Hagimori
PLoS ONE 18 ( 1 ) e0273823 - e0273823 2023年1月
担当区分：最終著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Molecular and morphological differentiation within the Gonatocerus fuscicornis species complex (Hymenoptera Mymaridae) 査読あり 国際共著
Serguei V. Triapitsyn, Paul F. Rugman-Jones, Tetsuya Adachi-Hagimori
Bulletin of Insectology 74 ( 2 ) 181 - 200 2021年12月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Cleome hassleriana plants fully support the development and reproduction of Nesidiocoris tenuis 査読あり
Ryohei Nakano, Taiki Morita, Yuta Okamoto, Ayaka Fujiwara, Takehiko Yamanaka, Tetsuya Adachi-Hagimori
BioControl 66 ( 3 ) 407 - 418 2021年5月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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宮崎県の露地栽培ゴマほ場におけるタバコカスミカメの発生消長 査読あり
岡本雄太, 中野亮平, 安達鉄矢
関西病虫害研究会報 63 163 - 166 2021年5月
担当区分：責任著者 記述言語：日本語 掲載種別：研究論文（研究会，シンポジウム資料等）
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Limited mating ability of a wasp strain with Rickettsia-induced thelytoky 査読あり
Tetsuya Adachi-Hagimori, Kazuki Miura
Annals of the Entomological Society of America 113 ( 5 ) 355 - 358 2020年9月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
DOI： 10.1093/aesa/saaa007
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Egg parasitoid (Hymenoptera: Mymaridae) of Amrasca biguttula (Ishida) (Hemiptera: Cicadellidae) on Okinawa Island, a pest of okra in Japan 査読あり 国際共著
Tetsuya Adachi-Hagimori, Serguei V. Triapitsyn, Takumi Uesato
Journal of Asia-Pacific Entomology 23 791 - 796 2020年7月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Egg parasitoids of Arboridia apicalis (Nawa, 1913) (Hemiptera, Cicadellidae), a leafhopper pest of grapevines in Japan, with description of a new species of Anagrus Haliday, 1833 (Hymenoptera, Mymaridae) 査読あり 国際共著
Serguei V. Triapitsyn, Tetsuya Adachi-Hagimori, Paul Rugman-Jones, Natsuko Kado, Nobuo Sawamura, Yutaka Narai
ZooKeys 945 129 - 152 2020年7月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Egg parasitoids of the tea green leafhopper Empoasca onukii (Hemiptera, Cicadellidae) in Japan, with description of a new species of Anagrus (Hymenoptera, Mymaridae) 査読あり 国際共著
Serguei V. Triapitsyn, Tetsuya Adachi-Hagimori, Paul Rugman-Jones, Adema Barry, Aoba Abe, Kazunori Matsuo, Kazuro Ohno
ZooKeys 836 93 - 112 2019年4月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Release of the flightless strain of Harmonia axyridis (Coleoptera: Coccinellidae) against two aphid species on komatsuna (Brassica rapa var. perviridis) in open fields 査読あり
Tetsuya Adachi-Hagimori, Manabu Shibao, Tomokazu Seko, Kazuki Miura
Journal of Economic Entomology 112 ( 1 ) 115 - 118 2019年2月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Moisturized sheltered sachets are potentially useful for the efficient release of selected predators in a wide range of humidity environments 査読あり
Takeshi Shimoda, Yoshitake Kagawa, Hitoshi Yoshizawa, Akio Nakano, Kunihiko Matsuhira, Hirotsugu Yanagita, Mitsuki Shimomoto, Tetsuya Adachi-Hagimori, Kotaro Mori, Norihide Hinomoto, Tadashi Hiraoka, Tetsuo Nakajima
BioControl 64 ( 1 ) 65 - 75 2019年2月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Multiplex PCR Method for Discriminating between Sphaerophoria macrogaster (Diptera: Syrphidae) and Sphaerophoria Indiana (Diptera: Syrphidae) 査読あり
Tetsuya Adachi-Hagimori, Adema Barry, Kazuro Ohno
Journal of Economic Entomology 111 ( 6 ) 2903 - 2907 2018年12月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
© The Author(s) 2018. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. Hoverflies are potential candidates for biological control of aphid populations; however, identification of closely related hoverfly species by using morphological characteristics is quite difficult. For instance, adults of Sphaerophoria macrogaster (Thomson) (Diptera: Syrphidae) - the predominant species early in the vegetable production season in Japan - are morphologically indistinguishable from those of Sphaerophoria Indiana Bigot (Diptera: Syrphidae) without comparison of the male genitalia. Here, we investigated genetic variation of the mitochondrial cytochrome c oxidase subunit I (COI) gene of the two species by DNA sequencing and developed a multiplex PCR method for differentiating the two species. Alignment of COI sequences revealed 1.2% nucleotide variance between the two species. The COI sequence of S. macrogaster collected from Japan was 99.8% identical to those of S. macrogaster collected from India. The COI sequence of S. Indiana collected from Japan was 100% identical to that of Sphaerophoria philanthus (Meigen) (Diptera: Syrphidae) collected from Canada. The sizes of the multiplex PCR products differentiated following gel electrophoresis were 162 bp for S. macrogaster and 607 bp for S. macrogaster and S. Indiana. The accuracy rate of multiple PCR was 100%. Use of this method will facilitate further research into the characteristics of hoverflies and will improve the efficacy of biological control using hoverflies on vegetable crops.
DOI： 10.1093/jee/toy249
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Tetsuya Adachi-Hagimori, Mitsuki Shimomoto, Yuki G. Baba
Biocontrol Science and Technology 28 ( 9 ) 874 - 882 2018年9月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Biocontrol Science and Technology
© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group. Nesidiocoris tenuis (Hemiptera: Miridae) is used widely around the world as a biological control agent. In Kochi Prefecture, Japan, at the end of each greenhouse eggplant crop production period, the N. tenuis populations that have developed are collected and transferred to ‘natural-enemy-rearing greenhouses’ so that farmers can use the bug in the next production period. However, spider numbers have been increasing at the end of the production periods and it is becoming difficult to collect N. tenuis in some greenhouses. Therefore, we constructed specific primers for N. tenuis mtDNA to test whether the species was being preyed upon by the predominant spider species, Leucauge blanda. In polymerase chain reactions, these primers amplified a 148-bp fragment of the mitochondrial cytochrome oxidase subunit I gene of N. tenuis but not of any of the 13 other arthropod species tested that occurred in eggplant greenhouses. In a laboratory experiment, the rates of detection of N. tenuis DNA in the spiders after the end of a period of feeding on the bug were 90% at 0 h, 60% at 24 h, and 0% at 72 h. In a greenhouse field experiment, the rate of detection of N. tenuis DNA in the spider was 95%. These results suggest that L. blanda is responsible for the observed suppression of N. tenuis populations in greenhouse eggplant crops.
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施設栽培における天敵利用を成功させるための栽培管理 査読あり
森光太郎, 大朝真喜子, 安達鉄矢
植物防疫 71 ( 11 ) 703 - 706 2017年
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等） 出版者・発行元：日本植物防疫協会
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Adachi-Hagimori T., Shibao M., Tanaka H., Seko T., Miura K.
Japanese Journal of Applied Entomology and Zoology 57 ( 3 ) 189 - 191 2013年11月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Japanese Journal of Applied Entomology and Zoology
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Tetsuya Adachi-Hagimori, Kazuki Miura, Yoshihisa Abe
Journal of Evolutionary Biology 24 ( 6 ) 1254 - 1262 2011年6月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Evolutionary Biology
Sympatric speciation is strictly defined as the emergence of two species from a population in which mating has been random with respect to the place of birth of the mating partners. Mathematical models have shown that sympatric speciation is possible, but very few examples have been documented in nature. In this article, we demonstrate that arrhenotokous and thelytokous strains of a parasitic wasp, Neochrysocharis formosa, speciated sympatrically through infection by a symbiotic bacterium Rickettsia for the following reasons: First, Rickettsia infection was detected in all of the thelytokous strains collected throughout Japan. Second, the arrhenotokous and thelytokous strains have been collected sympatrically. Third, crossing experiments between the two strains did not result in fertilized offspring. In addition, the two strains were genetically isolated at the nuclear and mitochondrial genes. Fourth, the two strains showed a sister relationship in nuclear 28S rRNA gene. Finally, thelytokous females treated with antibiotics produced Rickettsia-free male offspring of the same reproductive form as arrhenotokous females indicating that the thelytokous strain could have speciated sympatrically from an individual of the arrhenotokous strain. © 2011 The Authors. Journal of Evolutionary Biology © 2011 European Society For Evolutionary Biology.
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Anna G. Himler, Tetsuya Adachi-Hagimori, Jacqueline E. Bergen, Amaranta Kozuch, Suzanne E. Kelly, Bruce E. Tabashnik, Elad Chiel, Victoria E. Duckworth, Timothy J. Dennehy, Einat Zchori-Fein, Martha S. Hunter
Science 332 ( 6026 ) 254 - 256 2011年4月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Science
Maternally inherited bacterial symbionts of arthropods are common, yet symbiont invasions of host populations have rarely been observed. Here, we show that Rickettsia sp. nr. bellii swept into a population of an invasive agricultural pest, the sweet potato whitefly, Bemisia tabaci, in just 6 years. Compared with uninfected whiteflies, Rickettsia-infected whiteflies produced more offspring, had higher survival to adulthood, developed faster, and produced a higher proportion of daughters. The symbiont thus functions as both mutualist and reproductive manipulator. The observed increased performance and sex-ratio bias of infected whiteflies are sufficient to explain the spread of Rickettsia across the southwestern United States. Symbiont invasions such as this represent a sudden evolutionary shift for the host, with potentially large impacts on its ecology and invasiveness. Copyright 2011 by the American Association for the Advancement of Science; all rights reserved.
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Tetsuya Adachi-Hagimori, Manabu Shibao, Hiroshi Tanaka, Tomokazu Seko, Kazuki Miura
BioControl 56 ( 2 ) 207 - 213 2011年4月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：BioControl
The green peach aphid [Myzus persicae (Sulzer)] and turnip aphid [Lipaphis erysimi (Kaltenbach)] are economically important pests with a worldwide distribution. We have evaluated the efficacy of releasing adults and larvae of a flightless strain of the multicolored Asian lady beetle (Harmonia axyridis Pallas) as a control measure against these aphids on plants of non-heading Brassica cultivars. Both adults and larvae of H. axyridis were observed to be effective biocontrol agents, markedly decreasing the numbers of aphids. The residence duration of adults was longer than that of larvae. The proportion of non-marketable plants damaged by aphids was lower in plots into which either adults or adults and larvae of H. axyridis had been released. These results suggest that both adults and larvae of this flightless strain of H. axyridis are effective in controlling aphids on plants of non-heading Brassica cultivars. © 2010 International Organization for Biological Control (IOBC).
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Multiple paternity within field-collected egg cases of the praying mantid Tenodera aridifolia 査読あり 国際共著
Eisuke Watanabe, Tetsuya Adachi-Hagimori, Kazuki Miura, Michael R. Maxwell, Yoshikazu Ando, Yoko Takematsu
Annals of the Entomological Society of America 104 ( 2 ) 348 - 352 2011年3月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Annals of the Entomological Society of America
We developed microsatellite loci to examine the occurrence of multiple paternity in the praying mantid Tenodera aridifolia Stoll, as inferred from the genotypes of the progeny within field-collected oothecae (egg cases). The microsatellite locus MTA, developed from field-caught mantids, was found to have three alleles (A, B, and C) among >600 hatchlings from 18 oothecae from two locations in Japan. Of the 18 oothecae, two show clear evidence of multiple sires, two show equivocal evidence of multiple sires, and the remaining 14 do not show evidence of multiple sires. Thirteen of the latter 14 oothecae are exclusively homozygous, with all progeny being of the same genotype (BB). Although the exclusively homozygous oothecae suggest a high incidence of monogamy in these field populations, we caution that we probably underestimated the incidence of multiple paternity, given our use of one locus with three alleles. This study is the first genetic investigation of field-collected progeny of a sexually cannibalistic species, as well as the first demonstration of multiple paternity in nature for a sexually cannibalistic species. © 2011 Entomological Society of America.
DOI： 10.1603/AN10035
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大阪府の畦畔雑草における斑点米カメムシ類の発生密度と予察灯による誘殺虫数との関係 査読あり
西濵絢子, 大門 聖, 安達鉄矢, 砂池利浩, 柴尾 学, 那須義次
関西病虫害研究会報 53 ( 53 ) 113 - 115 2011年
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ナミテントウ飛翔不能系統の株間移動促進資材（渡り線）の検討 査読あり
安達鉄矢, 柴尾 学, 田中 寛, 世古智一, 三浦一芸
関西病虫害研究会報 53 113 - 115 2011年
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殺虫剤の発泡散布によるキャベツおよびナス害虫の防除効果 査読あり
柴尾 学, 森川信也, 安達鉄矢, 嘉悦佳子, 山崎基嘉, 磯部武志, 田中 寛
関西病虫害研究会報 53 ( 53 ) 21 - 24 2011年
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飛ばないナミテントウを利用した施設コマツナ・ミズナのアブラムシ防除 査読あり
安達鉄矢, 柴尾 学
植物防疫 65 343 - 346 2011年
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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Repellent effects of bamboo vinegar, pyroligneous acid and Sasanqua saponin granules on the Valencia slug, Lehmania valentiana (Ferussac) (Mollusca: Gastropoda) 査読あり
Tetsuya Adachi-Hagimori, Manabu Shibao, Hiroshi Tanaka
Japanese Journal of Environmental Entomology and Zoology 21 249 - 254 2010年
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シークエンス法とＬＡＭＰ法を利用した大阪府におけるタバココナジラミのバイオタイプ判別 査読あり
安達鉄矢, 梅澤 類, 山口洋史, 北村登史雄, 本多健一郎, 柴尾 学, 那須義次, 田中 寛
関西病虫害研究会報 52 103 - 104 2010年
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トマトツメナシコハリダニHomeopronematus anconaiの株間移動促進資材（渡り線）の検討 査読あり
安達鉄矢, 田中 寛, 柴尾 学, 北村登史雄, 本多健一郎
日本応用動物昆虫学会中国支部会報 52 ( 52 ) 15 - 19 2010年
担当区分：筆頭著者, 責任著者 記述言語：日本語 掲載種別：研究論文（研究会，シンポジウム資料等）
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イチジク葉片浸漬法によるイチジクヒトリモドキの薬剤殺虫効果 査読あり
山口洋史, 安達鉄矢, 梅澤 類, 井奥由子, 柴尾 学, 那須義次
関西病虫害研究会報 52 101 - 102 2010年
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スワルスキーカブリダニ放飼による施設ナスのミナミキイロアザミウマの防除 査読あり
柴尾 学, 安達鉄矢, 岡田清嗣, 林 兵弥, 久保田豊, 松本譲一, 上田善紀, 瓜生恵理子, 山中 聡, 田中 寛
関西病虫害研究会報 52 21 - 25 2010年
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Almost there: Transmission routes of bacterial symbionts between trophic levels 査読あり 国際共著
Elad Chiel, Einat Zchori-Fein, Moshe Inbar, Yuval Gottlieb, Tetsuya Adachi-Hagimori, Suzanne E. Kelly, Mark K. Asplen and Martha S. Hunter
PLoS ONE 4 ( 3 ) e4767 2009年3月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：PLoS ONE
Many intracellular microbial symbionts of arthropods are strictly vertically transmitted and manipulate their host's reproduction in ways that enhance their own transmission. Rare horizontal transmission events are nonetheless necessary for symbiont spread to novel host lineages. Horizontal transmission has been mostly inferred from phylogenetic studies but the mechanisms of spread are still largely a mystery. Here, we investigated transmission of two distantly related bacterial symbionts - Rickettsia and Hamiltonella - from their host, the sweet potato whitefly, Bemisia tabaci, to three species of whitefly parasitoids: Eretmocerus emiratus, Eretmocerus eremicus and Encarsia pergandiella. We also examined the potential for vertical transmission of these whitefly symbionts between parasitoid generations. Using florescence in situ hybridization (FISH) and transmission electron microscopy we found that Rickettsia invades Eretmocerus larvae during development in a Rickettsia-infected host, persists in adults and in females, reaches the ovaries. However, Rickettsia does not appear to penetrate the oocytes, but instead is localized in the follicular epithelial cells only. Consequently, Rickettsia is not vertically transmitted in Eretmocerus wasps, a result supported by diagnostic polymerase chain reaction (PCR). I n contrast, Rickettsia proved to be merely transient in the digestive tract of Encarsia and was excreted with the meconia before wasp pupation. Adults of all three parasitoid species frequently acquired Rickettsia via contact with infected whiteflies, most likely by feeding on the host hemolymph (host feeding), but the rate of infection declined sharply within a few days of wasps being removed from infected whiteflies. In contrast with Rickettsia, Hamiltonella did not establish in any of the parasitoids tested, and none of the parasitoids acquired Hamiltonella by host feeding. This study demonstrates potential routes and barriers to horizontal transmission of symbionts across trophic levels. The possible mechanisms that lead to the differences in transmission of species of symbionts among species of hosts are discussed. © 2009 Chiel et al.
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A new cytogenetic mechanism for bacterial endosymbiont-induced parthenogenesis in Hymenoptera 査読あり 国際共著
Tetsuya Adachi-Hagimori, Kazuki Miura, Richard Stouthamer
Proceedings of the Royal Society B: Biological Sciences 275 ( 1652 ) 2667 - 2673 2008年12月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the Royal Society B: Biological Sciences
Vertically transmitted endosymbiotic bacteria, such as Wolbachia, Cardinium and Rickettsia, modify host reproduction in several ways to facilitate their own spread. One such modification results in parthenogenesis induction, where males, which are unable to transmit the bacteria, are not produced. In Hymenoptera, the mechanism of diploidization due to Wolbachia infection, known as gamete duplication, is a post-meiotic modification. During gamete duplication, the meiotic mechanism is normal, but in the first mitosis the anaphase is aborted. The two haploid sets of chromosomes do not separate and thus result in a single nucleus containing two identical sets of haploid chromosomes. Here, we outline an alternative cytogenetic mechanism for bacterial endosymbiont-induced parthenogenesis in Hymenoptera. During female gamete formation in Rickettsia-infected Neochrysocharis formosa (Westwood) parasitoids, meiotic cells undergo only a single equational division followed by the expulsion of a single polar body. This absence of meiotic recombination and reduction corresponds well with a non-segregation pattern in the offspring of heterozygous females. We conclude that diploidy in N. formosa is maintained through a functionally apomictic cloning mechanism that differs entirely from the mechanism induced by Wolbachia. © 2008 The Royal Society.
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Tetsuya Adachi-Hagimori, Kazuki Miura
Journal of Economic Entomology 101 ( 4 ) 1510 - 1514 2008年8月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Economic Entomology
A multiplex polymerase chain reaction (PCR) method was applied to differentiate thelytokous and arrhenotokous strains of Neochrysocharis formosa (Westwood). Alignment of strain first internal transcribed spacer regions revealed high nucleotide variability and the strain-specific primer sequence used. Strains were easily differentiated after gel electrophoresis of multiplex PCR products because arrhenotokous specimens produced a 500-bp fragment as well as the 800-bp fragment common to both strains. This method successfully distinguished N. formosa strains regardless of collection site across Japan; thus, it is probably suitable for similar applications in Turkey, Italy, and elsewhere. © 2008 Entomological Society of America.
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The first finding of a Rickettsia bacterium associated with parthenogenesis induction among insects 査読あり
Tetsuya Hagimori, Yoshihisa Abe, Shuichi Date, Kazuki Miura
Current Microbiology 52 ( 2 ) 97 - 101 2006年2月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Current Microbiology
The larval endoparasitoid, Neochrysocharis formosa (Westwood), is an important natural enemy of the leafminer Liriomyza trifolii (Burgess) in Japan. The thelytokous strain of N. formosa mostly produces female progeny. Male progeny were produced by females treated with tetracycline, suggesting that microorganisms induce thelytoky in N. formosa. The result of nucleotide sequencing of the 16S rRNA gene indicated that the parasitoid is infected with a Rickettsia bacterium, which appears to be causative of the thelytoky. Although Rickettsia-bellii-like bacteria have been found to be associated with various reproductive disorders, this is the first finding of a parthenogenesis-inducing Rickettsia among insects. © Springer Science+Business Media, Inc. 2006.