result 896 件
| JaLCDOI | 10.18926/fest/11424 |
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| FullText URL | 011_009_014.pdf |
| Author | Nishina Tomohiko| Tian Tian Chen| Fujita Kazutoshi| Ishikawa, Hirofumi| |
| Abstract | The red fox (Vulpes vulepes) and the vole ( Clethrionomys refocanus) are principal hosts of Echinococcus multilocularis in Hokkaido, Japan. How protoscoleces increases in voles and the level of immunity in foxes remain unknown because of the lack of survey data, so that it is important to clarify these mecahnisms in order to develop control strategies against E. multilocularis. In this study, the growth of protoscoleces in the infected voles was approximated as the logistic curve, the level of immunity in the fox was assumed to depend on the experience of the infection with E. multilocularis, and the worm burden in the fox was assumed to be governed by the amount of protoscoleces in the vole. Our model showed that the population densities of the hosts and the level of immunity influenced the prevalence of the E. multilocularis. |
| Keywords | Echinococcus multilocularis protoscoleces immunity worm burden stochastic model |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 9 |
| End Page | 14 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002314034 |
| Title Alternative | Habenaria Mosaic Virus, A New Member of Potyvirus from Habenaria radiata Orchid |
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| FullText URL | 005_002_155_168.pdf |
| Author | Inouye, Narinobu| Maeda, Takanori| Mitsuhata, Koji| Gara, I Wayan| |
| Abstract | A potyvirus, isolated from Habenaria radiaata showing severe mosaic in the leaves named habenaria mosaic virus(HaMV). HaMV was transmitted by inoculation of sap to 6 of 41 species from 4 of 12 families. Systemic infection was cauded in Habenaria radiata, and local infection was produced in Chenopodium amaranticolor, C. quinoa, Spinacia olracea, Tetragonia expansa and Gomphrena globosa. HaMV was also transmitted by Myzus persicae in a non persistent manner, but not by Aphis gossypii. The virus has filamentous particles of c. 750×13nm. Sap from inoculated C. quinoa was infective after dilution to 10-5 but not 10-6, after 10 min at 60℃ but 65℃, or after 8-16 days at 20℃.In ultrathin sections of diseased leaves of Habenaria radiata and inoculated C. quinoa, virus particles were found to disperse in the cytoplasm. Cylindrical inclusions were present in the cytoplasm of infected cells, as pinwheels, scrolls or tubes. The inclusions observed in negatively stained crude sap preparations exhibited fine linear striation at about 5.2 nm intervals.The antiserum to HaMV produced by immunizing a rabbit had a titer of 1/512(precipitin test). HaMV showed distant serological relationships to potyvirus;alstroemeria mosaic virus, bean yellow mosaic virus, calanthe mild mosaic virus, clover yellow vein virus, dendrobium mosaic virus, freesia mosaic virus, turnip mosaic virus and watermelon mosaic virus 2. |
| Keywords | Habenaria orchid Habenaria mosaic potyvirus Habenaria mosaic disease |
| Publication Title | 岡山大学資源生物科学研究所報告 |
| Published Date | 1998 |
| Volume | volume5 |
| Issue | issue2 |
| Start Page | 155 |
| End Page | 168 |
| ISSN | 0916-930X |
| language | Japanese |
| File Version | publisher |
| Title Alternative | Ixia から分離された bean yellow mosaic virus |
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| FullText URL | 004_002_201_213.pdf |
| Author | Tsuji, Toshiya| Maeda, Takanori| Kondo, Hideki| Inouye, Narinobu| |
| Abstract | A strain (Ixia-B) of bean yellow mosaic virus (BYMV) isolated from Ixia hybrida was characterized and compared with other isolates of BYMV and clover yellow vein virus (CYVV). Ixia-B was transmitted by aphids,Myzus presicae in a non-presistent manner and by sap-inoculation to 11 of 46 species in 5 of 10 families tested, and had a similar host range to that of some BYMV isolates, althrough some defferences were detected. Sap from diseased C. quinoa was infective after 10 min heating at 55℃ but not 60℃, after a dilution to 10-3 but not 10-4, and after 2 days but not 4 days at 20℃.The Virus particles were filamentous rods of about 13×820 nm. Ixia-B contaied a single protein species with a molecular weight of 34,000 and a single viral RNA with approximately 9,000 bases. In ultrahtin sections of leaf tissues from infected plants, the virus particles, cylindrical cytoplasmic inclusions and dense bodies were obsserved in the cytoplasm. The antiserum to Ixia-B produced by immunizing a rabbit had a titer of 1/512. A close serological relationship was revealed between Ixia-B and two strains of BYMV from crocus and gladiolus, but no relationship to clover yellow vein virus was found in agar gel diffusion tests. However,Ixia-B could be distinguished from two strains of BYMV by the formation of spurs among them in agar gel and by the differences in the patterns of peptide mapping of coat proteins. From these findings, Ixia-B was identified as a strain of BYMV. |
| Keywords | Ixia hybrida Bean yellow mosaic virus Potyvirus |
| Publication Title | 岡山大学資源生物科学研究所報告 |
| Published Date | 1996 |
| Volume | volume4 |
| Issue | issue2 |
| Start Page | 201 |
| End Page | 213 |
| ISSN | 0916-930X |
| language | English |
| File Version | publisher |
| NAID | 120002313395 |
| Author | Matsushita, Hirokazu| |
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| Published Date | 2006-12-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | Han, Song| Abe, Asaki| Narahara, Kiyoaki| Kondo, Yasuhiro| |
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| Published Date | 2007-02 |
| Publication Title | 岡山大学農学部学術報告 |
| Volume | volume96 |
| Issue | issue1 |
| Content Type | Departmental Bulletin Paper |
| Author | Takada, Itsuro| |
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| Published Date | 2004-03-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | Tokunaga, Naoyuki| |
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| Published Date | 2005-03-25 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | Yamasaki, Rie| |
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| Published Date | 2004-03-25 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 栗原 英見| |
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| Published Date | 1992-03-28 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | Umi Cahyaningsih| |
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| Published Date | 1990-09-30 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 矢田 義比古| |
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| Published Date | 1985-06-30 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 浜崎 啓介| |
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| Published Date | 1977-03-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 藤原 良二| |
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| Published Date | 1986-06-30 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 藤原 徹| |
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| Published Date | 1982-03-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 田村 敬博| |
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| Published Date | 1980-12-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 中川 和彦| |
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| Published Date | 2001-03-25 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 成本 仁| |
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| Published Date | 1981-03-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 森田 竹千代| |
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| Published Date | 1996-06-30 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 小野 稔| |
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| Published Date | 1986-12-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 篠原 徹| |
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| Published Date | 1982-09-30 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
