大学院 生物システム応用科学府 生態系型生産システム教育研究分野
農学部 地域生態システム学科 土壌生態管理学教育分野
Yu Yu Min, Koki Toyota: Suppressiveness of Meloidogyne incognita in different agricultural soils and possible contribution of soil fauna, Nematology, accepted, Oct 8, 2012
Yuki KOYAMA, So Pyay THAR, Chihiro KIZAKI, Koki TOYOTA, Eiji SAWADA and Naruhito ABE: Development of specific primers to Hirschmanniella spp. causing damage to lotus and their economical threshold level in Tokushima prefecture in Japan, Nematology, accepted
Yu Yu Min, Koki Toyota and Erika Sato: A novel nematode diagnostic method by the direct quantification of plant-parasitic nematodes in soil with real-time PCR, Nematology, 14(3), 265-276 (2012)
宮丸直子・伊波聡・儀間靖・亀谷茂・豊田剛己：緑肥と堆肥の連用がジャーガルの各種性質に及ぼす影響、土肥誌, 83(3), 280-287 (2012)
Lu J, Jiang LN, Chen DJ, Toyota K, Strong PJ, Wang HL, Hirasawa T: Decontamination of anaerobically digested slurry in a paddy field ecosystem in Jiaxing region of China. AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 146(1), 13-22 (2012) Jan
K.T. Win, R. Nonaka, A.T. Win, Y. Sasada, K. Toyota, T. Motobayashi and M. Hosomi: Comparison of methanotrophic bacteria, methane oxidation activity and methane emission in rice fields fertilized with anaerobically digested slurry between a fodder rice and a normal rice variety, Paddy and Water Environment, 10(4), 281-289 (2012) December
Yu Yu Min, Koki Toyota, Keita Goto, Erika Sato, Shoko Mizuguchi, Naruhito Abe, Akio Nakano and Eiji Sawada: Development of a direct quantitative detection method of Meloidogyne incognita in sandy soils and its application to sweet potato cultivated fields in Tokushima prefecture, Japan, Nematology, 13, 95-102 (2011)
Keita Goto, Yu Yu Min, Erika Sato and Koki Toyota: A multiplex real-time PCR assay for the simultaneous quantification of the major plant parasitic nematodes in Japan. Nematology, 13(6), 713-720 (2011)
Siti Khodijah Chaerun, Nurmi P. D. Pangesti, Koki Toyota and William B. Whitman: Changes in microbial functional diversity and activity in paddy soils irrigated with industrial wastewater in Bandung, West Java Province, Indonesia. Water Air and Soil Pollution, 217(1-4), 491-502 (2011) May
Yu Yu Min, Koki Toyota, Sato Erika and Atsushi Takada: Effect of anaerobically digested slurry on damages caused by the root-knot nematode to tomato and by the root-lesion nematode to radish, Applied and Environmental Soil Science, Article ID 528712 (2011)
Erika Sato, Koki Toyota, Hajime Takeda and Ichi Okumura: Difference of soil biological responses to amendment with okara and coffee residue compost or cow manure compost. Soil Microorganisms, 65(1), 18-26 (2011)
Erika SATO, Yuko SUGA, Chihiro KISAKI, Koki TOYOTA, Kazuto MIYAKE, Atsushi TAKADA, Koji TAKEUCHI and Rie MATSUURA: Quantification of Pratylenchus penetrans in radish fields using a combination method of soil compaction and real-time PCR to determine the economic threshold, Soil Science and Plant Nutrition, 57(2), 213-220 (2011)
Satoko Wada and Koki Toyota: Effect of the nematicide imicyafos on soil nematode community structure and damage to radish by Pratylenchus penetrans, Journal of Nematology, 43(1), 1-6 (2011)
Yu Sasada, Khin Thawda Win, Ryoko Nonaka, Aye Thida Win, Koki Toyota, Takashi Motobayashi, Chen Dingjiang and Jun Lu: Environmental impact in a whole crop rice cultivation fertilized with anaerobically digested cattle or pig slurry, Biology and Fertility of Soils, 47(8),948-956 (2011) Nov
Naoko Miyamaru, Satoru Iha, Yasushi Gima and Koki Toyota: High labile organic matter and low available nitrogen is related to low productivity in soils of Daito Islands, Soil Microorganisms, 65(2),119-124 (2011)
Marylene Bagarinao Posas and Koki Toyota: Mechanism of tomato bacterial wilt suppression by the amendment of lysine to soil. Microbes and Environments, 25(2), 83-94 (2010)
Tomoko Sugito, Koji Yoshida, Masako Takebe, Takuro Shinano and Koki Toyota: Soil microbial biomass phosphorus as an indicator of phosphorus availability in a Gleyic Andosols. Soil Science and Plant Nutrition, 56(3), 390-398 (2010)
Erika Sato, Keita Goto, Yu Yu Min, Koki Toyota and Chika Suzuki: Quantitative detection of Pratylenchus penetrans from soil using soil compaction and real-time PCR, Nematological Research, 40(1), 1-6 (2010)
Khin Thawda WIN, Ryoko NONAKA, Koki TOYOTA, Takashi MOTOBAYASHI and Masaaki HOSOMI: Effects of option mitigating ammonia volatilization on CH4 and N2O emissions from a paddy field fertilized with anaerobically digested cattle slurry, Biology and Fertility of Soils, 46(6), 589-595 (2010) August
Keita Goto, Erika Sato, Li Faung, Koki Toyota and Tomoko Sugito: Comparison of calibration curves prepared by soil compaction or ball-mill method for the direct quantification of potato cyst nematode Globodera rostochiensis in soil. Nematological Research, 40(2), 41-45 (2010)
Khin Thawda WIN, Koki TOYOTA, Takashi MOTOBAYASHI and Masaaki HOSOMI: Suppression of ammonia volatilization from a paddy soil fertilized with anaerobically digested cattle slurry by wood vinegar application and floodwater management, Soil Science and Plant Nutrition, 55(1), 190-202 (2009)
Keita Goto, Erika Sato and Koki Toyota: A novel detection method for the soybean cyst nematode Heterodera schactii using soil compaction and real-time PCR. Nematological Reseaech, 39(1), 1-7 (2009)
Erika Sato, Yu Yu MIN, Koki Toyota and Atsushi Takada: Relationships between the damage to radish caused by the root-lesion nematode Pratylenchus penetrans, its density prior to cultivation and the soil nematode community structure evaluated by polymerase chain reaction-denaturing gradient gel electrophoresis. Soil Science and Plant Nutrition, 55(4), 478-484 (2009)
須永薫子・吉村季織・侯紅・Khin Thawda WIN・田中治夫・吉川美穂・渡邊裕純・本林隆・加藤誠・西村拓・豊田剛己・細見正明：飼料イネ栽培へのメタン発酵消化液の多量投入が土壌，水質，大気環境に及ぼす影響。日本土壌肥料学雑誌、80(6)、596-605 (2009)
井川岳士・井出磨美・Yanetri Asi Nion・豊田剛己・黒田哲生・増田和成：養液栽培へのリジンおよび拮抗菌の添加がトマト青枯病に及ぼす影響。土と微生物、62(1), 9-15 (2008)
和田さと子・藤野智絵・豊田剛己・岡本保：1,3－ジクロロプロペン，クロルピクリン及び太陽熱による土壌消毒がセルロース分解能及び硝化菌に及ぼす影響。土と微生物, 62(1), 21-31 (2008)
甘利誠・豊田剛己・Tajul MD Islam・増田和成・黒田哲生・渡辺昭：土壌および養液栽培へのメタン消化液施用が数種土壌病害発生に及ぼす影響。土と微生物, 62(2), 106-113 (2008)
Chie Fujino, Satoko Wada, Tomohiko Konoike, Koki Toyota, Yuko Suga and Jun-ichi Ikeda: Effect of different organic amendments on resistance and resilience of organic matter decomposing ability of soil and role of aggregated soil structure. Soil Science and Plant Nutrition, 54(4), 534-542 (2008)
Yanetri Asi Nion and Koki Toyota: Suppression of bacterial wilt and Fusarium wilt by a Burkholderia nodosa strain isolated from Kalimantan soils, Indonesia. Microbes and Environments, 23(2), 134-141 (2008)
Yosuke Yanai, Ryusuke Hatano, Masanori Okazaki and Koki Toyota: Analysis of the C2H2 inhibition-based N2O production curve to characterize the N2O-reducing activity of denitrifying communities in soil. Geoderma, 146(1-2), 269-276 (2008)
Satoko Wada and Koki Toyota: Effect of three organophosphorous nematicides on non-target nematodes and soil microbial community. Microbes and Environments, 23(4), 331-336 (2008)
須賀有子・堀兼明・小森冴香・福永亜矢子・池田順一・豊田剛己：細菌群集構造解析のための植物根からの迅速かつ簡便なDNA抽出法。土と微生物、62(2)、121-125 (2008)
Archana Shrestha, Koki Toyota, Masanori Okazaki, Yuko Suga, Marcelo A. Quevedo, Alan B. Loreto and Algerico M. Mariscal: Enhancement of nitrogen-fixing activity of Enterobacteriaceae strains isolated from sago palm (Metroxylon sagu) by microbial interaction with non-nitrogen fixers. Microbes and Environments, 22(1), 59-70 (2007)
Yanai Yosuke, Koki Toyota and Okazaki Masanori: Effect of charcoal addition on N2O emissions from soil resulting from rewetting air-dried soils in short-term laboratory experiments. Soil Science and Plant Nutrition, 53(2), 181-188 (2007)
Khin Moe Kyaw and Koki Toyota: Suppression of nitrous oxide production in soils applied with organic matter by the herbicides glyphosate and propanil. Soil Science and Plant Nutrition, 53(4), 441-447 (2007) AUG
Hong Hou, Sheng Zhou, Masaaki Hosomi, Koki Toyota, Kiori Yosimura, Yuuko Mutou, Taku Nisimura, Masao Takayanagi and Takashi Motobayashi: Ammonia emissions from anaerobically-digested slurry and chemical fertilizer applied to flooded forage rice. Water Air Soil Pollut., 183, 37-48 (2007)
Koki TOYOTA, Tomoaki SHIRAKASHI, Erika SATO, Satoko WADA, Yu Yu MIN: Development of a real-time PCR method for the potato cyst nematode Globodera rostochiensis and the root-knot nematode Meloidogyne incognita. Soil Science and Plant Nutrition, 54(1), 72-76 (2008)
Marylene B. Posas, Koki Toyota and Tajul MD Islam: Inhibition of bacterial wilt of tomato caused by Ralstonia solanacearum by sugars and amino acids. Microbes and Environments, 22(3), 290-296 (2007)
Yanai, Yosuke, Toyota, Koki, Morishita, Tomoaki, Takakai, Fumiaki, Hatano, Ryusuke, Limin, Suwido H., Darung, Untung, Dohong, Salampak: Fungal N2O production in an arable peat soil in central Kalimantan, Indonesia. Soil Science and Plant Nutrition, 53(6), 806-811 (2007)
Yanai, Y., Toyota, K. and Okazaki, M.: Response of denitrifying communities to successive soil freeze-thaw cycles. Biology and Fertility of Soils, 44(1), 113-119 (2007) Oct
Erika Sato, MinYu Yu, Tomoaki Shirakashi, Satoko Wada and Koki Toyota: Detection of the root-lesion nematode, Pratylenchus penetrans, from a nematode community using real-time PCR. 日本線虫学会誌, 37(2), 87-92 (2007)
Yu Yu Min, Erika Sato, Tomoaki Shirakashi, Satoko Wada, Koki Toyota and Akira Watanabe: Suppressive effect of anaerobically digested slurry on the root lesion nematode Pratylenchus penetrans and its potential mechanisms. Japanese Journal of Nematology, 37(2), 93-100 (2007)
Satoko Wada and Koki Toyota: Repeated application of farmyard manure enhances resistance and resilience of soil biological functions against soil disinfection. Biology and Fertility of Soils, 43(3), 349-356 (2007) January
Toyota, K. and Kuninaga, S.: Comparison of soil microbial community between soils amended with or without farmyard manure. Applied Soil Ecology, 33, 39-48 (2006)
佐藤恵利華・豊田剛己：PCR-DGGE法を用いた土壌線虫群集構造解析法の開発。土肥誌, 77(2), 157-163 (2006)
Archana Shrestha, Koki Toyota, Yoko Nakano, Masanori Okazaki, Marcelo Quevedo and Elsa I. Abayon: Nitrogen fixing activity in different parts of sago palm (Metroxylon sagu) and characterization of aerobic nitrogen fixing bacteria colonizing sago palm. Sago Palm, 14(1), 20-32 (2006)
Natsuko Nakayama, Akiko Okabe, Koki Toyota, Makoto Kimura and Susumu Asakawa. Phylogenetic distribution of bacteria isolated from the floodwater of a Japanese paddy field. Soil Science and Plant Nutrition, 52(2), 305-312 (2006)
Tanaka, H., Kyaw, K. M., Toyota, K. and Motobayashi, T.: Influence of application of rice straw, farmyard manure and municipal biowastes on nitrogen fixation, soil microbial biomass-N and mineral-N in a model paddy microcosm. Biology and Fertility of Soils, 42(6), 501-505 (2006)
浜中康弘・豊田剛己・林（池田）恭子：コーヒー粕堆肥連用土壌におけるトマト根腐萎凋病菌に対する高い静菌作用に関与する糸状菌の選抜。土肥誌, 76(6), 817-824 (2005)
Nishijima, T., Toyota, K. and Mochizuki, M.: Predominant culturable Bacillus species in Japanese arable soils and their potential as biocontrol agents. Microbes and Environments, 20(1), 61-68 (2005)
Khin Moe Kyaw, Koki Toyota, Masanori Okazaki, Takashi Motobayashi and Haruo Tanaka: Nitrogen balance in a paddy field planted with whole crop rice (Oryza sativa cv. Kusahonami) during two rice-growing seasons. Biology and Fertility of Soils, 42(1), 72-82 (2005) November
安智子・豊田剛己・白石祐彰：シマミミズとお茶がらを用いた油汚染土壌の浄化促進。Edaphologia, 77, 1-10 (2005) July.
根路銘美穂・豊田剛己・Tajul MD Islam・西島孝紀・松岡智生・佐藤一郎・山口安幸：生ゴミ炭化物の土壌施用によるトマト青枯病抑制。土と微生物, 59(1), 9-14 (2005)
松岡智生・豊田剛己・佐藤一朗・増田和成・黒田哲生：繰り返し栽培した軽石培地におけるトマト青枯病の発病抑制メカニズム。土と微生物, 59(1), 15-20 (2005)
松岡智生・豊田剛己・増田和成・黒田哲生：連作軽石のトマト青枯病抑制培地としての抑止力とその抑制メカニズム。土と微生物、58, 25-32 (2004)
Tajul MD Islam and Toyota, K.: Susceptibility of soils with or without repeated application of farmyard manure to bacterial wilt of tomato caused by Ralstonia solancearum. 土と微生物、58, 33-42 (2004)
Tajul MD Islam and Toyota, K.: Suppression of bacterial wilt of tomato by Ralstonia solanacearum by incorporation of composts in soil and possible mechanisms. Microbes and Environments, 19(1), 53-60 (2004)
Yanai, Y., Toyota, K. and Okazaki, M.: Effect of a successive soil freeze-thaw treatment on soil microbial biomass and organic matter decomposition potential of soil. Soil Science and Plant Nutrition, 50(6), 821-829 (2004)
Yanai, Y., Toyota, K. and Okazaki, M.: Effect of soil freeze-thaw-caused partial sterilization on nitrification potential in soil. Soil Science and Plant Nutrition, 50(6), 831-837 (2004)
Saeki, M. and Toyota, K.: Effect of bensulfuron-methyl (a sulfonylurea herbicide) on soil bacterial community of a paddy soil microcosm. Biology and Fertility of Soils, 40(2), 110-118 (2004)
Islam, MD. T. and Toyota, K.: Effect of moisture conditions and pre-incubation at low temperature on bacterial wilt of tomato caused by Ralstonia solanacearum. Microbes and Environments, 19(3), 244-247 (2004)
Satoh, K. and Toyota, K.: Comparison of disease suppressiveness of different soils with or without repeated application of organic matters to bacterial wilt of tomato caused by Ralstonia solanacearum. Microbes and Environments, 19(4), 310-314 (2004)
柳井洋介・豊田剛己・岡崎正規：土壌の凍結融解反復処理が土壌微生物群集に及ぼす影響の調査事例。土と微生物、57(1), 13-20 (2003)
佐伯政男・豊田剛己：除草剤ベンスルフロンメチルのモデル水田土壌における窒素固定能に及ぼす影響。日本土壌肥料学雑誌、74(6), 809-811 (2003)
Makoto Ikenaga, Yoshitetsu Muraoka, Koki Toyota, and Makoto Kimura: Community structure of the microbiota associated with nodal roots of rice plants along with the growth stages: estimation by PCR-RFLP analysis. Biology and Fertility of Soils, 36(6), 397-404 (2002)
Baasansuren, J., Okazaki, M., Choi, I.-S. and Toyota, K.: Tin concentrations in River/Bay sediments of Tokyo in 1984 and 2000. Soil Science and Plant Nutrition, 48(5), 667-672 (2002)
Celiz, L. L., Okazaki, M., Josue, A. R. and Toyota, K.: Sago production and income analysis in northern Mindanao, Sago Palm, 10(1), 16-23 (2002)
Marwati, U., Funasaka, K., Toyota, K. and Katayama, A.: Functional characterization of soil microbial community based on utilization pattern of aromatic compounds. Soil Science and Plant Nutrition, 49(1), 143-147 (2003)