Soil Microorganisms
Online ISSN : 2189-6518
Print ISSN : 0912-2184
ISSN-L : 0912-2184
Search
Advanced search
OR
Browse
Search
Volume 38
Displaying 1-8 of 8 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • [title in Japanese]
    [in Japanese]
    Article type: Article
    1991Volume 38 Pages 1-2
    Published: December 01, 1991
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18946/jssm.38.0_1
    JOURNAL FREE ACCESS
    Download PDF (278K)
  • Vesicular-arbuscular mycorrhizal fungi in some humus-rich Ando soils of Japan
    Masanori SAITO, Ronald VARGAS
    Article type: Article
    1991Volume 38 Pages 3-15
    Published: December 01, 1991
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18946/jssm.38.0_3
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Information about the distribution of vesicular-arbuscular mycorrhizal (VAM) fungi in arable soils of Japan is limited. To characterize the VAM fungi in some humus rich Ando soils (Melanudands) in Japan, spores of VAM fungi were collected from experimental fields where different crops were cultivated. Sixteen spore types were detected in the soils, and their morphology was described. Nine of them were identified as Acaulospora scrobiculata, Gigaspora margarita, Scutellispora gregaria, Scutellispora pellucida, Scutellispora erythropa, Scutellispora gilmorei, Scutellispora alborosea, Glomus constrictum and Glomus caledonium. Two other spore types which resembled Scutellispora tricalypta and Glomus claroides, were isolated. the species composition of the VAM fungi differed among the fields, depending upon the crops, suggesting the presence of a host preference (ecological host specificity) for these fungi.
    View full abstract
    Download PDF (3475K)
  • Chitinase production and role in fungal cell wall degradation in Streptomyces sp. S-84
    Hideto UENO, Kiyotaka MIYASHITA, Yasuo SAWADA, Yutaka OBA
    Article type: Article
    1991Volume 38 Pages 17-23
    Published: December 01, 1991
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18946/jssm.38.0_17
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Streptomyces sp. S-84, which was isolated from soil, produced a large amount of chitinase inductively in the medium containing chitin or fungal cell walls (Fusarium oxysporum f. sp. batatas NIAES 5115 and F. oxysporum f. sp. cucumerinum NIAES 5117) as a sole carbon source. Although N-acetylglucosamine did not induce the production of chitinase independently, the addition of the sugar into the chitin medium enhanced the enzyme production markedly. The production of chitinase B was considerably inhibited, when glucose (0.3 %) was added into the culture on the chitin medium. When cultured on the fungal cell wall medium, the strain produced chitinase B inductively, suggenting that the enzyme played a major role in the degradation of the fungal cell walls.
    View full abstract
    Download PDF (1216K)
  • [title in Japanese]
    SULIASIH Rasti SARASWATI, Michiharu KOBAYASHI
    Article type: Article
    1991Volume 38 Pages 25-28
    Published: December 01, 1991
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18946/jssm.38.0_25
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A competition study was carried out in greenhouse to compare the nodule-forming ability of a mixture of strains of B. japonicum. A mixed inoculant of B. japonicum in five different ratios (1:1, 1:2, 2:1, 1:5, and 5:1) was inoculated to Glycine max (L.) Merr. cv. Okuharawase. The results showed that strains USDA 110 and A 1017 were more competitive than strain TKG 4B. It was observed that strains USDA 110 and A 1017 formed higher proportions of nodules sampled in all five inoculum ratios than the TKG 4B strain. The percentage recoveries of the inoculum strains in the nodules were not correlated with the mixture ratios and the nitrogen-fixing ability. However, the results showed that a mixture of strains is more effective than a single strain for the fixation of nitrogen.
    View full abstract
    Download PDF (297K)
  • Symbiotic relationship between Bradyrhizobium japonicum and Rhodopseudomonas capsulata
    Rasti SARASWATI, Michiharu KOBAYASHI
    Article type: Article
    1991Volume 38 Pages 29-33
    Published: December 01, 1991
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18946/jssm.38.0_29
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The Bradyrhizobium-soybean symbiosis was makedly influenced by the presence of Rhodopseudomonas capsulata. There was an enhancement of nodulation, plant growth and nitrogen fixation in the soybean plants inoculated with mixed cultures of B. japonicum and R. capsulata. Their excreted substances promoted root growth and the nodulation efficiency of their respective host plants. A positive correlation between the extracellular polysaccharide production and nitrogen-fixing effectiveness of B. japonicum was revealed.
    View full abstract
    Download PDF (394K)
  • Role of Fungal Enzymes on Decomposition of Cellulose in Soil
    Koichi HAYANO
    Article type: Article
    1991Volume 38 Pages 35-44
    Published: December 01, 1991
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18946/jssm.38.0_35
    JOURNAL FREE ACCESS
    Download PDF (906K)
  • [title in Japanese]
    Shinsuke FUJIHARA
    Article type: Article
    1991Volume 38 Pages 45-60
    Published: December 01, 1991
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18946/jssm.38.0_45
    JOURNAL FREE ACCESS
    Download PDF (1589K)
  • [title in Japanese]
    [in Japanese]
    Article type: Article
    1991Volume 38 Pages 61-62
    Published: December 01, 1991
    Released on J-STAGE: May 31, 2017
    DOIhttps://doi.org/10.18946/jssm.38.0_61
    JOURNAL FREE ACCESS
    Download PDF (645K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top