Proceedings of the Japan Academy, Series B

On the Geological Age of the Tanjong Malim Limestone in Peninsular Malaysia

Teiichi KOBAYASHI, GAN Ah Sai, K. N. MURTHY

1979 Volume 55 Issue 6 Pages 259-263
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.259

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On the Cofactor of Glucose Dehydrogenase of Pseudomonas fluorescens

Yujiro IMANAGA, Yuko HIRANO-SAWATAKE, Yoko ARITA-HASHIMOTO, Yumiko ITO ...

1979 Volume 55 Issue 6 Pages 264-269
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.264

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Possible Evidence for the Karyotype Evolution of the Indian Spiny Mouse due to Tandem Fusion of the House Mouse Chromosomes

Tosihide H. YOSIDA

1979 Volume 55 Issue 6 Pages 270-274
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.270

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Chromosomes of the Indian spiny mouse (Mus platythrix) are studied by the conventional and banding techniques with special reference to their origin. This species has 2n, 26 comprizing 12 acrocentric autosome pairs and acrocentric X and Y chromosomes. The comparison of G- and C-banded chromosomes and the measurement of the chromosome length between the spiny mouse and the house mouse (M. musculus), have made it possible to suggest that 8 autosome pairs (nos. 1 to 8) of the former species have been derived from the tandem fusion of two acrocentric pairs of the latter species. In this case, about 12.8per cent of the centromere and telomere regions of chromosomes seems to be lost from the original karyotype to construct the new formation.

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Karyotype of F₁ Hybrids between Mauritius and Oceanian Type Black Rats

Tosihide H. YOSIDA

1979 Volume 55 Issue 6 Pages 275-279
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.275

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A Karyotype Study of Eleven Species of Labrid Fishes from Japan

Yoshio OJIMA, Eiji KASHIWAGI

1979 Volume 55 Issue 6 Pages 280-285
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.280

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The chromosomes of 11 Japanese species of the Labridae are investigated, with reference to the evolutional relationship. The results are given in Table I.

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Detection of 8 Azaguanine Resistant Mutants of Embryonic Cells Induced by Products Formed in the Stomach on Oral Administration of Sodium Nitrite plus Aminopyrine to Pregnant Golden Hamsters

Naomichi INUI, Yoshisuke NISHI, Makiko MORI, Masako TAKETOMI, Miyako Y ...

1979 Volume 55 Issue 6 Pages 286-289
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.286

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Some Observations of Hatching of Electron- Irradiated Artemia Eggs under a Scanning Electron Microscope

Seizo FUJIKAWA, Yuh H. NAKANISHI

1979 Volume 55 Issue 6 Pages 290-294
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.290

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Encysted dry eggs of Artemia sauna are observed under a scanning electron microscope, after irradiation with electrons for 5min. At 18-hr-incubation in 2% NaCl solution at 27°C, the egg shells crack open, and embryos emerge from the shells. At 24- hr-incubation, the embryos hatch out into free-swimming nauplii. Exposure of the eggs shows a linear decrease of hatchability with an increase of irradiation time.

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Chromosomal Studies on Interspeci fic Hybrids of Butterflies (Papilionidae, Lepidoptera). XV

Crosses among Papilio machaon gorganus, P. machaon hippocrates, P. machaon britannicus, P. oregonius, P. bairdii, and P. rudkini

Kodo MAEKI, Shigeru A. AE

1979 Volume 55 Issue 6 Pages 295-299
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.295

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A Case of Slight Anemia with the Long Arm Interstitial Deletion of No. 5 Chromosome (46, XY, 5q-)

Tetsuji KADOTANI, Takashi KATANO, Motochiyo MURAKAMI, Yoko WATANABE

1979 Volume 55 Issue 6 Pages 300-304
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.300

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A case of the long arm deletion of a no. 5 chromosome (46, XY, del (5) (q15q31)) is presented. The patient is a fouryear and five-month old boy, and showed slight anemia and leukopenia together with developmental retardation with slight malformations. His mother, father, eldest sister and elder brother are physically and karyotypically normal.

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Effect of Prolactin on Post-Castration Changes in Ultrastructure of the Ventral Prostates in Male Rats

Sumio TAKAHASHI, Seiichiro KAWASHIMA

1979 Volume 55 Issue 6 Pages 305-310
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.305

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Two-month-old male rats were given daily intraperitoneal injections of 20IU PRL for 6 or 8 days and castrated on the 5th day of the treatment. At 30 hrs after castration the rough endoplasmic reticulum with cisternae arranged in parallel arrays was less numerous and isolated vesicles of the reticulum increased in epithelial cells of the ventral prostates in PRL-treated castrates as compared to vehicle-injected castrates. Morphometric studies revealed that lysosome-like dense bodies were smaller in size and less numerous in PRL-treated rats than in the vehicle-injected controls, although the effects of PRL were no longer detectable 78 hrs after operation. These findings suggest that PRL delays the early progress of involutionary changes in the ventral prostate epithelial cells by inhibiting the lysosomal system.

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Cloning of Gene(s) for Fetal y-Globin Subunit from Mouse Yolk Sac Cells

Yoji IKAWA, Gen-Ichiro SOMA, Masuo OBINATA

1979 Volume 55 Issue 6 Pages 311-316
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.311

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Radioimmunoassay for Biopterin

Toshiharu NAGATSU, Tokio YAMAGUCHI, Takeshi KATO, Takashi SUGIMOTO, Sa ...

1979 Volume 55 Issue 6 Pages 317-322
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.317

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Biosynthesis of the Neuron-Specific Enolase (14-3-2 Protein) in a Cell Free System from Wheat Germ Extract Directed with Poly(A)-Containing RNA from Rat Brain

Kenji SAKIMURA, Yutaka YOSHIDA, Yo-ichi NABESHIMA, Yasuo TAKAHASHI

1979 Volume 55 Issue 6 Pages 323-328
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.323

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Histochemical Demonstration of Biosynthetic Pattern of ABH Isoantigens in Various Tissues

Ikuo ISHIYAMA

1979 Volume 55 Issue 6 Pages 329-334
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.329

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