Japanese Journal of Phytopathology

Comparison of the Cellulose-Decomposition by Plant-Pathogenic Fungi

Fusataro SETO

1936 Volume 5 Issue 4 Pages 308-317
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.308

JOURNAL FREE ACCESS

Show abstractHide abstract

The present paper deals with the results of the writer's experiments on the cellulose-decomposition by 23 species of the different plant-pathogenic fungi (including wood-destroying fungi), with special reference to a comparison of their cellulose-decomposing abilities in pure cultures. A synthetic mineral-salt-solution (K₂HPO₄1g, MgSO₄1g, NaCl1g, CaCO₃2g, NH₄NO₃2g, H₂O1000cc), being inserted with a piece of filter paper as the carbon source for the fungi, was used as the cuture-medium. The experimental method was exactly the same with that previously described by SATOH (4). In this series of experiments the filter paper composed of cellulose fibers showed generally some changes by the development of these fungi on it. A careful examination of the filter paper inoculated with these fungi had been done under a microscope and the results suggested clearly that the fungi tested vary in their abilities of decomposing filter paper. The conclusions are briefly summarized as follows.
1. Most of the fungi grown on the filter paper are capable of utilizing cellulose in any extent. However, the change of the filter paper used was not large in many cases.
2. Such fungi, as Corticium centrifugum (LÉV.) BRES., Fomes applanatus (PERS.) WALLR., Gibberella Fujikuroi (SAW.) WR., Pestalozzia Diospyri SYD., Polystictus pergamcnus FR. and Polystictus sanguineus (L.) FR., are clearly recognized as to have the power of decomposing cellulose. The localization of the decomposed cellulose by pure cultures of the above fungi were demonstrared in detail by means of examining the preparations under the crossed NICOL prisms of a polarization microscope.
3. Gloeosporium Olivarum ALM., Pestalozzia Thcae SAWADA and Sclerotium Oryzae-sativae SAWADA seem to have the most active ability for the cellulose-decomposition under such pure culture conditions.

View full abstract

Download PDF (1894K)
Bacterial plant diseases in Japan

V. A bacterial disease of pot marigold

Seito TAKIMOTO

1936 Volume 5 Issue 4 Pages 336-341
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.336

JOURNAL FREE ACCESS

Show abstractHide abstract

The author observed an undescribed bacterial disease of pot marigold (Calendula officinalis L.) last year near Hukuoka and a study on its pathogene was undertaken.
The disaese is very destructive in rainy period in autumn, specially in thick stand. When the plants are attacked the midribs of the leaves turn dark brown or black and large spots may appear on the blades resulting in the distortion of stem and leaves.
On examination many bacteria were found in the diseased tissue and pure cultures were easily obtained. Its pathogenicity was proved by inoculations with spraying or rubbing. On agar plate the organism forms circular dirty white growth. And it is considered to be one hitherto undescribed. Therefore the name Bacterium Calendulae is proposed with the following description.
Short rod with rounded ends, solitary or in pairs, individual rod 1.0-2.0×0.5μ; no spores or capsules demonstrated; motile by means of 1-3 polar flagella, Gram-negative. On agar colonies circular, smooth, flat, dirty white; bouillon clouded; gelatine not liquefied, no change produced in milk, growth well in USCHINSKY's and COHN's solutions. Aerobic, indol produced feebly, hydrogen sulphide not produced, nitrates not reduced. Maximum temperature for growth 37°C., minimum 0-4°C., optimum 27-30°C. and thermal death point 50°C. Group number Bact. 212. 2332032.
Pathogenic on leaves and stems of pot marigold.

View full abstract

Download PDF (1313K)
[title in Japanese]

[in Japanese]

1936 Volume 5 Issue 4 Pages 342-350
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.342

JOURNAL FREE ACCESS

Download PDF (398K)
New diseases and pathogenes reported in the year of 1935 on our cultivated plants

H. ASUYAMA

1936 Volume 5 Issue 4 Pages 351-354
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.351

JOURNAL FREE ACCESS

Download PDF (221K)
[title in Japanese]

[in Japanese]

1936 Volume 5 Issue 4 Pages 355-359
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.355

JOURNAL FREE ACCESS

Download PDF (1784K)
The Function and Formation of Setae on some Anthracnose Fungi

S. IKATA

1936 Volume 5 Issue 4 Pages 360-362
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.360

JOURNAL FREE ACCESS

Download PDF (1514K)
[title in Japanese]

[in Japanese]

1936 Volume 5 Issue 4 Pages 363
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.363

JOURNAL FREE ACCESS

Download PDF (65K)
[title in Japanese]

[in Japanese]

1936 Volume 5 Issue 4 Pages 367-369
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.367

JOURNAL FREE ACCESS

Download PDF (435K)
[title in Japanese]

[in Japanese]

1936 Volume 5 Issue 4 Pages 370-371
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.370

JOURNAL FREE ACCESS

Download PDF (258K)
Erratum to : A Helotium causing the black bulb disease of Allium Bakeri REGEL

1936 Volume 5 Issue 4 Pages 386
Published: 1936
Released on J-STAGE: March 26, 2009

DOIhttps://doi.org/10.3186/jjphytopath.5.4_386

JOURNAL FREE ACCESS

Download PDF (34K)

Register with J-STAGE for free!