Japanese Journal of Phytopathology

Japanese Journal of Phytopathology

Online ISSN : 1882-0484
Print ISSN : 0031-9473
ISSN-L : 0031-9473

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Volume 35, Issue 5

Displaying 1-12 of 12 articles from this issue

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Effects of Antibiotics, Inhibitors against Protein Synthesis, on Tobacco Mosaic Virus Multiplication and the Host Metabolism

Masaaki KATAOKA, Noriyuki DOKE, Tokuzo HIRAI

1969 Volume 35 Issue 5 Pages 329-338
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.329

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Blasticidin S (BcS) and puromycin (PM), inhibitors against protein synthesis in fungi and higher organisms, inhibited tobacco mosaic virus (TMV) multiplication in tobacco leaf-discs, whereas chloramphenicol (CM), inhibitor against bacterial protein synthesis, did not inhibit. TMV produced by antibiotics treatment had the same infectivity as that produced by untreatment. BcS and PM inhibited ¹⁴C-leucine incorporation into the cytoplasmic protein of tobacco leaf-discs, but CM did not. CM reduced more rapidly the chlorophyll content in leaf-discs than BcS and PM. ¹⁴CO₂-incorporation into infected leaf-discs was strongly inhibited by CM, but not by BcS and PM. Although, under BcS and PM treatments, the rate of ¹⁴C-amino acids and ¹⁴CO₂-incorporations into TMV was in proportion to the amount of TMV produced, the rate of the former incorporation rather increased by CM under both light and dark conditions and that of ¹⁴CO₂-incorporation was decreased, whereas the amount of TMV was not altered by CM. Most of ¹⁴CO₂ incorporated into TMV located in TMV protein. Site of TMV synthesis in tobacco leaf-discs and the role of photosynthetic activity of chloroplasts are discussed.

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Mechanism of Selective Toxicity of Fungicide

Metabolism of Pentachloronitrobenzene by Phytopathogenic Fungi

Toshiro NAKANISHI, Hachiro OKU

1969 Volume 35 Issue 5 Pages 339-346
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.339

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Metabolism of pentachloronitrobenzene (PCNB) by phytopathogenic fungi was studied with reference to selective toxicity. PCNB is metabolized to two substances, pentachloroaniline (PCA) and pentachlorothioanisole (PCTA), by Fusarium oxysporum f. lycopersici. Antifungal activities of PCA and PCTA against phytopathogenic fungi are extremely inferior to that of parent compound, PCNB, which indicate that these two biotransformation reactions belong to detoxication. Metabolism of PCNB to PCA is common to various microorganisms, but metabolism of PCNB to PCTA is specific for some filamentous fungi. Judging from these findings, it is impossible to elucidate selective action of PCNB from only presence or lack of PCNB degrading ability of microorganisms.

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Absorption of γ-BHC by Fusarium roseum Link in Culture

Akinori UEYAMA, Hiroshi EGAWA, Mitsuya TSUDA

1969 Volume 35 Issue 5 Pages 347-350
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.347

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Fine Structure of Conidia of Fusarium oxysporum f. cucumerinum

Shigeyasu AKAI, Masao FUKUTOMI, Norihiko KOBAYASHI

1969 Volume 35 Issue 5 Pages 351-353
Published: December 30, 1969
Released on J-STAGE: April 03, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.351

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Abstracts of Papers Presented at the Summer Meeting of the Kanto Division

1969 Volume 35 Issue 5 Pages 354-361
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.354

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Abstracts of Papers Presented at the Meeting of the Kyushu Division

1969 Volume 35 Issue 5 Pages 362-365
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.362

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Abstracts of Papers Presented at the Meeting of the Tohoku Division

1969 Volume 35 Issue 5 Pages 366-368
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.366

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Abstracts of Papers Presented at the Meeting of the Hokkaido Division

1969 Volume 35 Issue 5 Pages 369-375
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.369

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Abstracts of Papers Presented at the Meeting of the Kansai Division

1969 Volume 35 Issue 5 Pages 375-385
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.375

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Abstracts of Papers Presented at the Autumn Meeting of the Kanto Division

1969 Volume 35 Issue 5 Pages 385-392
Published: December 30, 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.385

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Erratum to : Studies on Mixture Inoculation of Pyricularia oryzae on Rice

1969 Volume 35 Issue 5 Pages 393a
Published: 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.5_393a

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Erratum to : Inhibitory Effects on Viral Infection of Some Proteinaceous Inhibitors Applied before or after Inoculation with Some Plant Viruses

1969 Volume 35 Issue 5 Pages 393b
Published: 1969
Released on J-STAGE: February 19, 2009

DOIhttps://doi.org/10.3186/jjphytopath.35.5_393b

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