Correction to: A new and simple method for measuring in situ field-saturated hydraulic conductivity using a falling-head single cylinder     

Noborio  Kosuke  Ito  Yuki  He  Hailong  Li  Min  Kojima  Yuki  Hara  Hirofumi  Mizoguchi  Masaru 《Paddy and Water Environment》2018,16(1):81-87

Paddy and Water Environment - Hydraulic properties of soil play important roles in water and temperature regimes. Measuring hydraulic properties has been studied for decades in the laboratory and...  相似文献   

Performance evaluation of wood-based panels under a mild accelerated aging treatment     

Sahriyanti Saad  Hikaru Kobori  Yoichi Kojima  Shigehiko Suzuki 《Journal of Wood Science》2016,62(4):324-331

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Effect of heat treatment on colour changes of black alder and beech veneers     

Emilia-Adela Salca  Hikaru Kobori  Tetsuya Inagaki  Yoichi Kojima  Shigehiko Suzuki 《Journal of Wood Science》2016,62(4):297-304

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MytiLec,a Mussel R-Type Lectin,Interacts with Surface Glycan Gb3 on Burkitt’s Lymphoma Cells to Trigger Apoptosis through Multiple Pathways     

Imtiaj Hasan  Shigeki Sugawara  Yuki Fujii  Yasuhiro Koide  Daiki Terada  Naoya Iimura  Toshiyuki Fujiwara  Keisuke G. Takahashi  Nobuhiko Kojima  Sultana Rajia  Sarkar M. A. Kawsar  Robert A. Kanaly  Hideho Uchiyama  Masahiro Hosono  Yukiko Ogawa  Hideaki Fujita  Jiharu Hamako  Taei Matsui  Yasuhiro Ozeki 《Marine drugs》2015,13(12):7377-7389

MytiLec; a novel lectin isolated from the Mediterranean mussel (Mytilus galloprovincialis); shows strong binding affinity to globotriose (Gb3: Galα1-4Galβ1-4Glc). MytiLec revealed β-trefoil folding as also found in the ricin B-subunit type (R-type) lectin family, although the amino acid sequences were quite different. Classification of R-type lectin family members therefore needs to be based on conformation as well as on primary structure. MytiLec specifically killed Burkitt''s lymphoma Ramos cells, which express Gb3. Fluorescein-labeling assay revealed that MytiLec was incorporated inside the cells. MytiLec treatment of Ramos cells resulted in activation of both classical MAPK/ extracellular signal-regulated kinase and extracellular signal-regulated kinase (MEK-ERK) and stress-activated (p38 kinase and JNK) Mitogen-activated protein kinases (MAPK) pathways. In the cells, MytiLec treatment triggered expression of tumor necrosis factor (TNF)-α (a ligand of death receptor-dependent apoptosis) and activation of mitochondria-controlling caspase-9 (initiator caspase) and caspase-3 (activator caspase). Experiments using the specific MEK inhibitor U0126 showed that MytiLec-induced phosphorylation of the MEK-ERK pathway up-regulated expression of the cyclin-dependent kinase inhibitor p21, leading to cell cycle arrest and TNF-α production. Activation of caspase-3 by MytiLec appeared to be regulated by multiple different pathways. Our findings, taken together, indicate that the novel R-type lectin MytiLec initiates programmed cell death of Burkitt’s lymphoma cells through multiple pathways (MAPK cascade, death receptor signaling; caspase activation) based on interaction of the lectin with Gb3-containing glycosphingolipid-enriched microdomains on the cell surface.  相似文献   

Elevated atmospheric CO2 concentration alters the effect of phosphate supply on growth of Japanese red pine (Pinus densiflora) seedlings     

Kogawara S  Norisada M  Tange T  Yagi H  Kojima K 《Tree physiology》2006,26(1):25-33

We demonstrated that the inorganic phosphate (P(i)) requirement for growth of Japanese red pine (Pinus densiflora Sieb. & Zucc.) seedlings is increased by elevated CO(2) concentration ([CO(2)]) and that responses of the ectomycorrhizal fungus Pisolithus tinctorius (Pers.) Coker & Couch to P(i) supply are also altered. To investigate the growth response of non-mycorrhizal seedlings to P(i) supply in elevated [CO(2)], non-mycorrhizal seedlings were grown for 73 days in ambient or elevated [CO(2)] (350 or 700 micromol mol(-1)) with nutrient solutions containing one of seven phosphate concentrations (0, 0.02, 0.04, 0.06, 0.08, 0.10 and 0.20 mM). In ambient [CO(2)], the growth response to P(i) was saturated at about 0.1 mM P(i), whereas in elevated [CO(2)], the growth response to P(i) supply did not saturate, even at the highest P(i) supply (0.2 mM), indicating that the P(i) requirement is higher in elevated [CO(2)] than in ambient [CO(2)]. The increased requirement was due mainly to an altered shoot growth response to P(i) supply. The enhanced P(i) requirement in elevated [CO(2)] was not associated with a change in photosynthetic response to P(i) or a change in leaf phosphorus (P) status. We investigated the effect of P(i) supply (0.04, 0.08 and 0.20 mM) on the ectomycorrhizal fungus P. tinctorius in mycorrhizal seedlings grown in ambient or elevated [CO(2)]. Root ergosterol concentration (an indicator of fungal biomass) decreased with increasing P(i) supply in ambient [CO(2)], but the decrease was far less in elevated [CO(2)]. In ambient [CO(2)] the ratio of extramatrical mycelium to root biomass decreased with increasing P(i) supply but did not change in elevated [CO(2)]. We conclude that, because elevated [CO(2)] increased the P(i) requirement for shoot growth, the significance of the ectomycorrhizal association was also increased in elevated [CO(2)].  相似文献   

两种功能高分子材料对沙土物理性质影响的比较   总被引：1，自引：0，他引：1  

王勇  王龙昌  小岛纪德 《干旱地区农业研究》2008,26(5):94-99

采用SEM,透水系数法、加压板法等现代测试手段,观察与分析高分子吸水树脂、固沙植被多功能高分子复合材料表面微观结构形态,比较高分子吸水树脂与固沙植被多功能高分子复合材料改良沙土后沙土的透水、保水等特性及沙土水分的有效利用情况.实验结果证明固沙植被多功能高分子复合材料比高分子吸水树脂改良沙土的效果好,使沙土的气、液、固三相比有利植物的生长,能保持高的水有效利用率.本实验结果为固沙植被多功能高分子复合材料的应用提供了新的依据.  相似文献   

Analysis of serum corticosteroid‐induced alkaline phosphatase isoenzyme in dogs with hepatobiliary diseases          下载免费PDF全文

K. Kojima  K. Ohno  H. Kanemoto  Y. Goto‐Koshino  K. Fukushima  H. Tsujimoto 《The Journal of small animal practice》2017,58(5):257-262

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Molecular typing and antimicrobial resistance of Salmonella enterica subspecies enterica serovar Choleraesuis isolates from diseased pigs in Japan     

Asai T  Namimatsu T  Osumi T  Kojima A  Harada K  Aoki H  Sameshima T  Takahashi T 《Comparative immunology, microbiology and infectious diseases》2010,33(2):109-119

Salmonella enterica serovar Choleraesuis (S. Choleraesuis) isolates derived from diseased pigs in Japan during 2001 and 2005 were analyzed for biotype, based on H(2)S production and dulcitol fermentation, pulsed-field gel electrophoresis (PFGE) profile, and antimicrobial resistance profile. S. Choleraesuis biotype Choleraesuis (biotype Choleraesuis) was classified into one genotype, while varietas Kunzendorf (var. Kunzendorf) was classified into two genotypes. The isolates of var. Kunzendorf belonging to one genotype were isolated in a limited area of Japan. Variation in the antimicrobial resistance pattern was observed in isolates of both biotypes Choleraesuis and var. Kunzendorf. We have also shown that the PFGE profile was associated with the biotype and isolation region of each isolate.  相似文献   

Effects of cyclophosphamide on the kaolin consumption (pica behavior) in five strains of adult male rats     

Tohei A  Kojima S  Ikeda M  Hokao R  Shinoda M 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2011,73(7):901-906

It is known that pica, the consumption of non-nutritive substances such as kaolin, can be induced by administration of toxins or emetic agents in rats. In the present study, we examined the effects of intraperitoneal (i.p.) administration of cyclophosphamide on pica behavior and on the concentration of 5-hydroxyindoleacetic acids (5HIAA) in cerebrospinal fluid (CSF) in the following five strains of adult male rats: Sprague Dawley (SD), Wistar, Fischer 344 (F344), Wistar-Imamichi (WI) and Long Evans (LE). Cyclophosphamide (25 mg or 50 mg/kg) was injected (i.p.) into the rats and kaolin and food intake were measured at 24 hr after injection. The animals were anesthetized with urethane (1 g/kg) at 3 hr after injection of cyclophosphamide, and CSF was collected from the cisterna magna. WI and LE rats clearly showed pica behavior as compared with the other strains. In LE rats, the concentration of 5HIAA in CSF also increased in a dose-dependent manner of cyclophosphamide. The pretreatment with ondansetron (5-HT(3) antagonist) restored both changes (kaolin consumption and 5HIAA levels) induced by cyclophosphamide. These results suggest that the LE rat is sensitive to cyclophosphamide, that pica induced by cyclophosphamide mimics many aspects of emesis including the serotonergic response in the central nervous system and that use of the pica model would be a practical method for evaluating the effects of antiemetic drugs in addition to the mechanism of emesis.  相似文献   

Karyotype analysis of interspecific fusants of basidiomycetes by pulsed-field gel electrophoresis     

Takeshi Yokono  Yutaka Tamai  Tomonori Azuma  Yoh Sakuma  Kiyoshi Miura  Yasuo Kojima  Masahide Sunagawa  Masatake Ohmasa 《Journal of Wood Science》2000,46(6):480-484

The purpose of this research was to analyze the karyotype of the interspecific fusants of twoPleurotus species. Auxotrophic mutants derived from the cultivated strain ofP. ostreatus andP. cornucopiae were used. Protoplasts were fused electrically, and the fusants were selected under auxotrophic complementation. Esterase isozyme analysis showed that several fusants had isozyme bands originating from both parental strains, and others had unilateral isozyme bands. The fusant that had expressed isozyme bands of both parental strains showed chromosomal DNA bands of both of the parental strains in pulsedfield gel electrophoresis analysis. Despite the above results, the chromosomal composition of the fusants obtained by the pulsed-field gel electrophoresis did not exhibit all of the bands of both fusion parents.  相似文献