Shokubutsugaku Zasshi

Uredinales Collected in Korea. IV

Naohide Hiratsuka

1940 Volume 54 Issue 647 Pages 427-432
Published: 1940
Released on J-STAGE: January 26, 2011

DOIhttps://doi.org/10.15281/jplantres1887.54.427

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New or Noteworthy Trees from Micronesia. XXIII

Ryôzô Kanehira, Sumihiko Hatusima

1940 Volume 54 Issue 647 Pages 433-437
Published: 1940
Released on J-STAGE: January 26, 2011

DOIhttps://doi.org/10.15281/jplantres1887.54.433

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Chromosome Studies in Cyperaceae, X. Anenploid plants of Carex multifolia OHWI

N. TANAKA

1940 Volume 54 Issue 647 Pages 438-446
Published: 1940
Released on J-STAGE: January 26, 2011

DOIhttps://doi.org/10.15281/jplantres1887.54.438

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Chromosome behaviour in meiosis of Carex multifolia OHWI has been investigated by 6 plants collected from 5 different localities. Three of them were diploid, having 30 chromosomes in the root tip cells, and the chromosome pairing in their meiosis has been normal. Of all of the rest three have been hypertetraploids; one of them collected at Mt. Kintokiyama in Sagami Province having 2n=64 chromosomes, second plant collected at Kamikuzu in Musasi Province having 2n=65 chromosomes, and the last collected at Ose in Kazusa Province having 2n=66 chromosomes. The investigation of meiosis of these three hypertetraploid plants has suggested that they were to be the derivatives of the autotetraploid (2n=60) which has already been found by OKUNO ('40). Chromosome pairing in meiosis of a plant with 2n=64 chromosomes has been normal; and this plant has been considered to be a secondarily balanced individual. While in the other twos chromosome behaviour in their meiosis have been accompanied by some structural hybridities, so they have been considered to be unbalancing derivatives of the tetraploid.
Thus in Carex multifolia 5 different somatic chromosome numbers, namely, 30, 60, 64, 65 and 66, have heretofore been found. It is interesting, that two steps of chromosome alterations, namely, doubling of the chromosome set and appearance of hyper- as well probably as hypotetraploids, have been found together within a species.

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Über die physiologischen Untersuchungen der Sporenkeimung bei Myxomyceten

I. Einfluß des osmotischen Wertes des Mediums bei Sporenkeimung.(Vorläufige Mitteilung)

SEIJI ABE

1940 Volume 54 Issue 647 Pages 446-452
Published: 1940
Released on J-STAGE: January 26, 2011

DOIhttps://doi.org/10.15281/jplantres1887.54.446

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Wenn der Keirnungsvorgang der Myxomyceten-Sporen in destilliertem Wasser und Lösungen von Rohrzucker, Traubenzucker und KCl beobachtet wird, zeigt es sich, daß die Quellung der Sporen und der Austritt ihres, Inhaltes als eine kugelige Masse in kürzerer Zeit im destillierten Wasser in einer der Lösungen geschehen, und in längerer Zeit in aufsteigender Konzentration. der Lösung als in schwacher Lösung.
In destillierteni Wasser und in sehr schwachen Lösungen ist die Masse nach der Quellung disorganisiert oder sic entwickelt sich zum Schwärmer mit einem ungewöhnlich grossen Vakuol. Das Vorhandensein einer osinotischen Substanz in dem Medium scheint notwendig zu sein, um die typischen Schwärmer aus der Masse zu gewiimen. Bei stärkeren Lösungen solcher Substanzen ist der Austritt der Masse verzögert, aber Aire Umbilaung zum Schwarmer ist beschleunigt. In Fuligo septica und Reticularia Lycoperdon ist die geeignetste Konzentration der Lösungen zur Gewinnung der Schwärmer in kiirzester Zeit wie folgt

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On the Distribution of Growth-promoting and Growth-inhibiting Substances in Morus alba. L. and Cassia occidentalis, L.

YASUYUKI OKABE

1940 Volume 54 Issue 647 Pages 453-461
Published: 1940
Released on J-STAGE: January 26, 2011

DOIhttps://doi.org/10.15281/jplantres1887.54.453

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1. Distribution of growth-promoting and growth-inhibiting substances diffused from stem (upper middle and basal parts) and root of Morus alba, L. and Cassia occidentalis, L. are examined by the Arena method.
2. To inspect the distribution of non-masked state of growth-promot ing and inhibiting substances of the stem and root, the agar blocks are applied in following sets: a. agar on lower side; b. agar on upper side.
3. Negative curvatures of Avena are caused by growth-promoting substance from upper part of the stem in the set of “a”.
Positive curvatures are caused by growth-inhibiting substances from middle and basal stem in the same set of the above.
4. Positive curvature is caused by the upper side agar and negative curvature is caused by the lower side agar from the upper part of the stem in the sets of “a” and “b” simultaneously.
This result shows us that the, growth-inhibiting substance is masked by the growth-promoting substance especially in the upper part of thestem.

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[title in Japanese]

1940 Volume 54 Issue 647 Pages 462-463
Published: 1940
Released on J-STAGE: January 26, 2011

DOIhttps://doi.org/10.15281/jplantres1887.54.462

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[title in Japanese]

1940 Volume 54 Issue 647 Pages 464-466
Published: 1940
Released on J-STAGE: June 23, 2023

DOIhttps://doi.org/10.15281/jplantres1887.54.647_464

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[title in Japanese]

1940 Volume 54 Issue 647 Pages App27-App31
Published: 1940
Released on J-STAGE: June 23, 2023

DOIhttps://doi.org/10.15281/jplantres1887.54.647_App27

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