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Volume 68, Issue 805-806
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Minosuke HIROE1955 Volume 68 Issue 805-806 Pages 201-202
Published: 1955
Released on J-STAGE: December 05, 2006
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The Development of the Tannin Vacuole in the Motor Cell of the PulvinusHideo TORIYAMA1955 Volume 68 Issue 805-806 Pages 203-208
Published: 1955
Released on J-STAGE: December 05, 2006
JOURNAL FREE ACCESSThe available data from the present study concerning the development to the tannin vacuole in the pulvinus of Mimosa pudica may be summarized as follows.
1. By fixing the motor tissues with Kaiser's solution the tannin vacuole formation of all stages was demonstrated. The protoplast of young cell, which contains vacuole at first, begins to have a tiny original body of tannin nature at a certain stage.
2. The presence of the tannin vacuoles is by no means relevant to the sensitivity of the motor cell in young seedling.
3. As the result of the material confusion in motor cell, which may be caused by the bending movement, the morphological change in the tannin vacuole appears in the motor cell.
4. In the young pulvinus of Robinia pseudo-Acacia, tannin substance appears in the central vacuole of the parenchymatous motor cell, forming a vacuolar appearance. In the full grown pulvinus, the tannin vacuole finally fills up the whole central vacuole of the cell, leaving no trace of the latter.View full abstractDownload PDF (1321K) -
The Polar Plasmolysis on Fern-prothallium (3)Isami IGURA1955 Volume 68 Issue 805-806 Pages 208-212
Published: 1955
Released on J-STAGE: December 05, 2006
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Suemoto TAKAHARA, Akira KAWANA, Isao TANGE1955 Volume 68 Issue 805-806 Pages 212-215
Published: 1955
Released on J-STAGE: December 05, 2006
JOURNAL FREE ACCESSCompensation point, content of chlorophyll, total nitrogen and minenral elements in the leaves of Shirakashi-seedlings (3 years old) cultured under various conditions of light intensity and soil moisture were surveyed. Four experimental plots were established in a green house; viz, a dry and a wet plot in the light and in the shade respectively. The seedlings were cultured in those plots, for about 14 months (relative light intensity in the shade plots being about 13%; soil water in, the wet plots being 85% of the capacity, soil water in dry plots being 25%). The results obtained are summeraized as follows.
1) The compensation point of the leaves of Shirakashi was not only affected by the light intensity, but also by the soil moisture. By the former it was remarkably influenced in the dry plot, while scarcely in the wet. Under the same condition of light intensity, the compensation point was strikingly influenced by the soil moisture, namely, it was lower in the wet than in the dry.
2) Chlorophyll content of the leaves was higher in the shade plot than in the light, and it was not affected by the soil moisture as far as this experiment was concerned.
3) The contents of total nitrogen and K2O were larger in the shade plot, on the other hand, ash, SiO2 and P2O5 were contained more in the leaves of the sun plot. Relatively high contents of total nitrogen, SiO2 and K2O were observed in the leaves of the wet, while the contents of CaO and MgO were smaller in the wet than in the dry.View full abstractDownload PDF (650K) -
Karyotype and Sex Chromosome of BartramiaceaeKoji YANO1955 Volume 68 Issue 805-806 Pages 216-220
Published: 1955
Released on J-STAGE: December 05, 2006
JOURNAL FREE ACCESS1)The chromosome numbers and the karyotypes of genus Philonotis and genus
Bartramia studied are as follows;
Philonotis falcata (Hook.) Mitt _??_K(n)=6=V(X)+3V+J+m(h) _??_K(n)=6=V(Y)+3V+J+m(h)
P. japonica (Schimp.) Par. _??_K(n)=6=V(X)+3V+J+m(h) __??_K(n)=6=V(Y)+3V+J+m(h)
P. carinata Mitt. _??_K(n)=6=V(X)+3V+J+m(h) _??_K(n)=6=V(Y)+3V+J+m(h)
P. lancifol Mitt. _??_K(n)=6=V(H)+3V+J+m(h)
P. seriata Mitt. K(n)=6=V(H)+3V+J+m(h)
P. Turncriana (Schwag, ) Mitt. _??_K(n)=6=V(H)+3V+J+m(h)
P. socia Mitt. (monoploid) _??_K(n)=6=V(X)+3V+J+m(h) _??_K(n)=6=V(Y)+3V+J+m(h)
P. socia Mitt. (diploid) _??_K(n)=12=2V(X, Y)+6V+2J+2m(h)
Bartramia pomiformis (L) Hedw. _??_K(n)=8=V(H)+3V+2J+m+m(h)
B. crispata Shimp. _??_K(n)=8=V(H)+3V+2J+m+m(h)
2)The sex-chromosomes have been found in the four species of Philonotis X and Y are the largest V-shaped heterochromosomes of the male and the female chromosome complements respectively.
3) The intraspecific polyploidy has been found in Philonotis socia (n=6, 12). The diploid plant is a monoecious having two sets of chromosome complements, each of which is similar in the morphology of the formative elements to that of the male or female gametophyte of a monoploid plant respectively. These evidences are suggestive that the diploid plant may have stemmed from the monoploid one by sporophytic apospory.View full abstractDownload PDF (655K) -
R. trifidus Thunb._??_ ×R. ribisoides Matsum. _??Taro JINNO1955 Volume 68 Issue 805-806 Pages 221-225
Published: 1955
Released on J-STAGE: December 05, 2006
JOURNAL FREE ACCESS1. This report concerns with the results of the author's observation on the characteristics and the types of pairing of chromosomes in the reduction division of P.M. Cs. in the F1. hybrid (2n=14) which was produced by crossing R. trifidus Thunb. (2n=14) ×R. ribisoidesMatsum. (2n=14).
2. In this hybrid, the characteristics of R. trifidusare found in the cyme, the glandular hair, the wrinkles of petals and the color of stems (red-purple), while the characteristic of R. ribisoides in the wool on leaves and stems. On the other hand, with regard to some characteristics, e. g. the size of flowers, the shapes of leaves, the serrate and stipule, this hybrid is intermediate of its both parent plants.
3. The peduncle of this hybrid, stands, at first. upright like that of R. trifidus, and then it turns downwards like that of R. ribisoides. This is a case of dominance change.
4. The types and frequency of pairing of the chromosomes in the metaphase of the first reduction division of P.M. Cs. in this hybrid are as follows: 7II (35.5%), 6II+2I (40.9%), 5II+4I (18.3%), 4II+6I (4.3%) and 3II+8I (1.1%).
5. There are two kinds of pollens in this hybrid; the pollens having contents and the empty pollens. The ratio of their occurrence being 45:55.View full abstractDownload PDF (687K)
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