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Volume 82, Issue 970
Displaying 1-5 of 5 articles from this issue
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On the Flower Pigments of some Erythrina SpeciesMannen SHIBATA, Kunijiro YOSHITAMA, Takaaki YANO1969 Volume 82 Issue 970 Pages 139-147
Published: 1969
Released on J-STAGE: October 31, 2006
JOURNAL FREE ACCESShree different anthocyanins are contained in the flower of cockspur coral tree (common coral tree) (Erythrina cristagalli L. var. compacta BULL.); namely two kinds of cyanidin glycoside in its petal and one kind of pelargonidin glycoside in its sepal. The present investigation showed that the former two were cyanidin 3- diglucoside and cyanidin 3-monoglucoside (chrysanthemin), and the latter was pelargonidin 3-monoglucoside (callistephin). It was also shown that the petal of other coral tree (E. corallodendron L.) contains two kinds of cyanidin glycoside, i. e. cyanidin 3-diglucoside and cyanidin 3-monoglucoside (chrysanthemin). The proportion of two cyanidin glycosides, that is, 3-monoglucoside vs. 3-diglucoside, was approx. 7:3 in the petal of cockspur coral tree, while approx. 1:9 in the petal of coral tree.
Anthocyanin in the sepal was pelargonidin 3-monoglucoside in the case of cockspur coral tree, while it was composed of both cyanidin-3-monoglucoside and 3-diglucoside in coral tree flower. The proportion of these two cyanidin glucoside was approx. 9:1, that is quite reverse to the case of the petal.View full abstractDownload PDF (827K) -
Two New Flavonoid Glycosides from the Wood of Prunus mumeMasao HASEGAWA1969 Volume 82 Issue 970 Pages 148-154
Published: 1969
Released on J-STAGE: October 31, 2006
JOURNAL FREE ACCESSFrom the wood of Prunus mume which belongs to the section Prunophora, prudomenin (herbacetin 8, 4'-dimethyl ether 7-glucoside, prudomestin 7-glucoside) and a flavanonol glucoside (dihydroprudomenin) corresponding to it have been obtained. These compounds have two methyl groups in the 8 and 4' positions of herbacetin and dihydroherbacetin. The wood of Prunus mume seems to have a specific ability to synthesize flavonol and flavanonol glycosides of herbacetin type as main flavonoids. This property differs from the tested species belonging to the section Cerasus.View full abstractDownload PDF (672K) -
Studies on Anthocyanins, LXINaoe UENO, Ei-ichi TAKEMURA, Kozo HAYASHI1969 Volume 82 Issue 970 Pages 155-161
Published: 1969
Released on J-STAGE: October 31, 2006
JOURNAL FREE ACCESSPreviously, the anthocyanins contained in Japanese plants were reported. The surveys were continued in this laboratory, and the results obtained in these years are to be presented, while 84 plants, wild and cultivated, were investigated paper- chromatographically. About 250 plants, including these 84 ones, were known to contain one or two kinds of anthocyanidins, although the nature of their glycosides were not satisfactorily determined. The number of plants hitherto examined nearly attained a quarter of the whole anthocyanin-containing, flowering plants belonging to the flora of Japan.View full abstractDownload PDF (626K) -
Alan P. COVICH, Matsuo TSUKADA1969 Volume 82 Issue 970 Pages 162-170
Published: 1969
Released on J-STAGE: October 31, 2006
JOURNAL FREE ACCESSOosporangial walls from four populations of Chara zeylanica collected in Yucatan, Mexico, show similar ultrastructural features but differences occur in size and shape of papillae and in thickness of the outer wall. The inner walls have hollow papillae (ca. 1.5μ in diam) which are sometimes clustered. Ultrasonication at 27 kc for less than 5minutes separates the inner and outer wall and does not alter the surface morphology, but 30minute exposures erode the papillae. The outer wall commonly has an even, granulate surface, but when it is thinner it reflects the raised topography of the underlying papillae. From our findings we conclude that it is premature to adopt a complex terminology for wall stratification and surface morphology in the charophyte oosporangia until more is known regarding the range of variations and their control by genetic and environmental factors.View full abstractDownload PDF (3811K) -
Induction of Haploidy by Culturing in the Liquid Medium and the Regularity of the Process of Haploidization.Takuzo YAMADA, Kaichiro YANAGISAWA, Humihiko ONO1969 Volume 82 Issue 970 Pages 171-179
Published: 1969
Released on J-STAGE: October 31, 2006
JOURNAL FREE ACCESSHaploid and diploid strains are known in the cellular slime mold, Dictyosterium discoideum. The ploidy is maintained throughout the whole life cycle as long as they are cultured in the solid medium. Diploid strains, however, become haploid when they are cultured in the liquid medium. The mode of haploidization is unique and seems to occur with some regularity. Haploidization commences after a certain lag period. The duration of the lag period is divergent and ranges from 30 to 200hours. After the initiation of haploidization it proceeds regularly following a uniform pattern. Even in the liquid medium diploid cells maintain some stability for some time. But when the haploidization is triggered, it proceeds regularly until all the cells become haploid. It is presumed that haploid cells produce a certain substance to induce haploidization. Accumulation of this substance around the diploid cells will be much easier in the liquid medium than in the solid. When the substance is accumulated to a certain concentration, it will become effective to induce haploid cells and hereafter the haploidization will proceed with some regularity.View full abstractDownload PDF (1494K)
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