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  1. No Access

    Article

    Changes in endophytic bacterial communities during different growth stages of cucumber (Cucumis sativus L.)

    Endophytic bacterial diversity in plants presents the level of interaction between culturable and non-culturable endophytic bacteria, thereby providing an appropriate insight into the endophytic environment. T...

    Ahmad Mahmood, Kazuhiro Takagi, Koji Ito in World Journal of Microbiology and Biotechn… (2019)

  2. No Access

    Article

    Bacterial biodegradation of melamine-contaminated aged soil: influence of different pre-culture media or addition of activation material

    This study aimed to investigate the biodegrading potential of Arthrobacter sp. MCO, Arthrobacter sp. CSP, and Nocardioides sp. ATD6 in melamine-contaminated upland soil (melamine: approx. 10.5 mg/kg dry weight) a...

    Takashi Hatakeyama, Kazuhiro Takagi in Environmental Science and Pollution Research (2016)

  3. No Access

    Article

    Identification and characterization of 1,4-dioxane-degrading microbe separated from surface seawater by the seawater-charcoal perfusion apparatus

    To determine the concentration of soluble 1,4-dioxane during biodegradation, a new method using of high-performance liquid chromatography equipped with a hydrophilic interaction chromatography column was devel...

    Ryotaro Matsui, Kazuhiro Takagi, Futa Sakakibara, Tomoko Abe in Biodegradation (2016)

  4. No Access

    Article

    4,4′-DDE and Endosulfan Levels in Agricultural Soils of the Çukurova Region, Mediterranean Turkey

    Mediterranean Turkey has long been at the forefront of Turkish agriculture and the use of organochlorinated pesticides (OCPs) in this area rose considerably between the 1940s and 1980s. This study aimed to det...

    Muhittin Onur Akça, Shihoko Hisatomi in Bulletin of Environmental Contamination an… (2016)

  5. No Access

    Article

    Effect of Rice Husk Gasification Residue Application on Herbicide Behavior in Micro Paddy Lysimeter

    Effects of rice husk gasification residues (RHGR) application on the fate of herbicides, butachlor and pyrazosulfuron-ethyl, in paddy water were investigated using micro paddy lysimeters (MPLs). The dissipatio...

    Junghun Ok, Sok Pisith, Hirozumi Watanabe in Bulletin of Environmental Contamination an… (2015)

  6. No Access

    Article

    Mineralization of melamine and cyanuric acid as sole nitrogen source by newly isolated Arthrobacter spp. using a soil-charcoal perfusion method

    Melamine belongs to the s-triazine family, and industrially used as raw product in many ways all over the world. Melamine has been reported for human harmful effects and detected from some crops, soil and water. ...

    Takashi Hatakeyama, Kazuhiro Takagi in World Journal of Microbiology and Biotechn… (2015)

  7. No Access

    Article

    Biodegradability and biodegradation pathways of endosulfan and endosulfan sulfate

    Endosulfan and endosulfan sulfate are persistent organic pollutants that cause serious environmental problems. Although these compounds are already prohibited in many countries, residues can be detected in soi...

    Ryota Kataoka, Kazuhiro Takagi in Applied Microbiology and Biotechnology (2013)

  8. Article

    Erratum to: Fate and transport of bensulfuron-methyl and imazosulfuron in paddy fields: experiments and model simulation

    Kazuhiro Takagi, Ferdinand F. Fajardo, Masumi Ishizaka in Paddy and Water Environment (2012)

  9. No Access

    Article

    Fate and transport of bensulfuron-methyl and imazosulfuron in paddy fields: experiments and model simulation

    Experiments were conducted to determine the fate of bensulfuron-methyl (BSM) and imazosulfuron (IMS) under paddy conditions. Initially, laboratory experiments were conducted and the photolysis half-lives of th...

    Kazuhiro Takagi, Ferdinand F. Fajardo, Masumi Ishizaka in Paddy and Water Environment (2012)

  10. Article

    Biodegradation of melamine and its hydroxy derivatives by a bacterial consortium containing a novel Nocardioides species

    Melamine has recently been recognized as a food contaminant with adverse human health effects. Melamine contamination in some crops arises from soil and water pollution from various causes. To remove melamine ...

    Kazuhiro Takagi, Kunihiko Fujii in Applied Microbiology and Biotechnology (2012)

  11. Article

    Degradation of endosulfan and endosulfan sulfate by white-rot fungus Trametes hirsuta

    Endosulfan, an organochlorine insecticide, and its metabolite endosulfan sulfate are persistent in environments and are considered toxic. We investigate the possible nontoxic bioremediation of endosulfan. An e...

    Ichiro Kamei, Kazuhiro Takagi, Ryuichiro Kondo in Journal of Wood Science (2011)

  12. No Access

    Article

    Chlorothalonil degradation by Ochrobactrum lupini strain TP-D1 and identification of its metabolites

    Chlorothalonil (2, 4, 5, 6-tetrachloroisophthalonitrile, TPN) has been widely used as a wide-spectrum fungicide in China and other countries, and is considered to be an important soil and water contaminant. He...

    **u-Zhen Shi, Rong-Jun Guo, Kazuhiro Takagi in World Journal of Microbiology and Biotechn… (2011)

  13. No Access

    Article

    Photodegradation of Imidacloprid and Fipronil in Rice–Paddy Water

    Photodegradation of insecticides, imidacloprid and fipronil, in rice–paddy water under the ambient temperature was investigated. The initial concentrations were set at 58.8 and 3.1 μg/L for imidacloprid and fi...

    Dang Quoc Thuyet, Hirozumi Watanabe in Bulletin of Environmental Contamination an… (2011)

  14. No Access

    Article

    Biodegradation of diphenylarsinic acid to arsenic acid by novel soil bacteria isolated from contaminated soil

    Microorganisms capable of degrading diphenylarsinic acid (DPAA) were enriched from contaminated soil using the soil-charcoal perfusion method. Two novel bacterial strains, L2406 and L2413, that can degrade DPA...

    Naoki Harada, Kazuhiro Takagi, Koji Baba, Kunihiko Fujii, Akio Iwasaki in Biodegradation (2010)

  15. No Access

    Article

    Simulated Rainfall Removal of Tricyclazole Sprayed on Rice Foliage

    Two rainfall simulations of 30 mm h−1, with 48-h interval between two simulations, were performed on rice lysimeters at 24, 48, and 72 h after being sprayed with tricyclazole. In the first simulated rainfall, was...

    Thai Khanh Phong, Dang Thi Tuyet Nhung in Bulletin of Environmental Contamination an… (2008)

  16. No Access

    Article

    The development of a coupled model (PCPF-SWMS) to simulate water flow and pollutant transport in Japanese paddy fields

    A new coupled model (PCPF–SWMS) was developed for simulating fate and behavior of pollutant in paddy water and paddy soil. The model coupled the PCPF-1, a lumped model simulating pesticide concentrations in pa...

    Julien Tournebize, Hirozumi Watanabe, Kazuhiro Takagi in Paddy and Water Environment (2006)