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| Publication Type:
| Report |
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| Author(s): | Nakamura, N.;
Nakamae, H. |
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| Author Affiliation: | Department of Agriculture, Kobe University, Japan |
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| Title: | Shibasyokubutsu no kemikaru kontor么ru: Koraishiba no hougaki niokeru cytokinin nobunseki |
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| Translated Title: | Regulation of turfgrass with chemicals: The distribution of cytokinin activity in the plant of Zoysia marella L. cv. Koraishiba during bud burst |
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| Article Series: | Regulation of turfgrass with chemicals, Part 7 |
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| Section: | Research articles
Other records with the "Research articles" Section
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| Source: | Turf Research Bulletin [Kansai Golf Union Green Section Research Center] [Gurin Kenkyo Hokokushu]. Vol. 38, February 1980, p. 41-47. |
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| Publishing Information: | Takarazuka, Japan: Kansai Golf Union Green Section Research Center [Kansi Goruhu Renmei Gurin Kenkyujo] |
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| # of Pages: | 7 |
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| Abstract/Contents: | "The distribution of cytokinin activity in plants of Zoysia matrella. L. cv. Koraishiba after bud burst was investigated. The plants were divided into three parts, upright stem, rhizome and root before extraction of cytokinins. At first, paper chromatograms were divided into two fractions. Fraction A represented the slow-mowing compounds (Rf 0.1-0.5) and Fraction B the fast-mowing compounds (Rf 0.5-0.9). The Fraction A of the upright stems contained one compound which promoted betacyanin biosynthesis in Amaranthus seedlings in the dark. This compound had a[n] elution volume of 250-300ml in the chromatogram on a Aephadex LH20 colum, which was lower than that of zeatin-riboside. Therefore, it was thought probably to be glucosyl zeatin or zeatin-riboside. The Fraction B of the upright stems did not almost contain the betacyanin biosynthesis-promoting compound. The low level of cytokinins seems to be the consequence of rapid utilization by buds. The Fraction A of the rhizomes contained one compound of which a elution volume was the same as that of the Fracion A of the upright stems. Therefore, it may be glucosyl zeatin or zeatin-riboside. The Fraction B of the rhizomes contained three betacyanin biosynthesis-promoting compounds. Since the rhizome is a course of transport of cytokinin and its buds develop to upright stems and roots, it seems to be reasonable that the high levels of zeatin and zeatin-riboside are detected. And also the high level of zeatin-riboside appears to favour the proposal by Hewett and Wareing (1973) which zeatin is converted into zeatin-riboside for transport. However, the presence of glucosyl zeatin or zeatin-riboside indivates that the rhizome has a function of reserve of zeatin. The Fractino A of the roots contained three betacyanin biosynthesis-promoting compounds. Two of them coeluted with zeatin and zeatin-riboside which had in principle to be contaained in the Fraction B. It may be the consequence of high concentration of zeatin that zeatin and zeatin-riboside are present in the Fraction A. When these compounds are contained in the Fraction B, both the Fractino A and B of the roots contain the same compounds as that of the rhizomes do. The level of zeatin in the roots, however, is very high and the level of zeatin-riboside is very low as compared with that in the rhizomes. It is showed in the literatures that in most plant roots the level of zeatin-riboside is higher than that of zeatin. The most part of activity in the roots of Zoysea [Zoysia] matrella. L. cv. Koraishiba is attributed to zeatin. This seems to be an original property of this cultivar." |
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| Language: | Japanese |
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| References: | 17 |
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| See Also: | See also part 1, "Shibafu no kemikaru kontor么ru: GA, BA oyobi ABA no kouka [The regulation of turfgrasses with chemicals: The effects of GA, BA an ABA treatments]", March 1975, p. 31-53, R=79117 R=79117
See also part 4, "Shiba syokubutsu no kemikaru kontorru: Koraishiba niokeru Cytokinin no kisetsu teki henka [Regulation of turfgrass with chemicals: Seasonal changes in the cytokinin content of Zoysia matrella L. cv. Koraishiba]", March 1978, p. 45-51, R=79282 R=79282
See also part 5, "Shibasyokubutsu no kemikaru kontor么ru: Kouraishiba niokeru gousei cytokinin no tankiteki syoucyou [Regulation of turfgrass with chemicals: The short term changes of exogenously applied synthetic cytokinin in Zoysia matrella L. cv. Koraishiba]", September 1978, p. 60-63, R=79336 R=79336
See also part 6, "Shiba shokubutu no kemikaru kontorool: Koraishiba ni okeru cytokinin no kisetuteki hennka (zoku) [Regulation of turfgrass with chemicals: Seasonal changes in the cytokinin content of Zoysia matrella L. cv. K么raishiba]", March 1979, p. 33-38, R=69379 R=69379
See also part 8, "Shibasyokubutsu no kemikaru kontor么ru: Koraishiba no hougaki no seicyoukaishi to cytokinin bunpu no kankei [Regulation of turfgrass with chemicals: The relationship between onset of growth and distribution of cytokinin in the plants of Zoysia matrella L. cv. Koraishiba during but burst]", August 1980, p. 35-39, R=79464 R=79464 |
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| See Also: | Other items relating to: Biostimulants |
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| Note: | English summary appears
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nakamura, N., and H. Nakamae. 1980. Shibasyokubutsu no kemikaru kontor么ru: Koraishiba no hougaki niokeru cytokinin nobunseki. (In Japanese) Turf Res. Bull. 38:p. 41-47. |
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