ETHYLENE ACCELERATES THE BREAKDOWN OF CYTOKININS AND THEREBY STIMULATES ROOTING IN NORWAY SPRUCE HYPOCOTYL CUTTINGS

被引：49

作者：

BOLLMARK, M

ELIASSON, L

机构：

[1] Dept of Botany, Stockholm Univ, Stockholm

来源：

PHYSIOLOGIA PLANTARUM | 1990年 / 80卷 / 04期

关键词：

ADVENTITIOUS ROOT FORMATION; CYTOKININS; ETHYLENE; PICEA-ABIES; NORWAY SPRUCE;

D O I：

10.1111/j.1399-3054.1990.tb05675.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Cuttings were taken from 4-week-old seedlings of Norway spruce (Picea abies L. Karst.) raised at two different irradiation levels. Rooting experiments showed that root formation was increased by the ethylene formed by adding 1-aminocyclopropane-1-carboxylic acid ACC or Ethrel, especially in the slowly rooting cuttings grown under high light (HL). Cobaltous ion, an ethylene synthesis inhibitor, delayed rooting, especially in the easily rooted cuttings grown under low light (LL). Compounds isolated from the cuttings using immunoaffinity chromatography, on a column with antibodies against cytokinins, and separated by HPLC decreased in amount during the first week of the rooting period. An increase in ethylene production accelerated this process, especially in cuttings grown under HL, whereas cobaltous ion delayed it. We suggest that ethylene stimulates rooting by enhancing the degradation of cytokinins.

引用

页码：534 / 540

页数：7

共 24 条

[1]

Beyer, Morgan P.W., Effect of ethylene on the uptake, distribution, and metabolism of indolcacetic acid‐1‐<sup>14</sup>C, and naphthaleneacetic acid‐1‐<sup>14</sup>C, PLANT PHYSIOLOGY, 46, pp. 157-162, (1970)

[2]

Banko T.J., Boe A.A., Effects of pH, temperature, nutrition, and chlormequat on endogenous cytokinin levels of Coleus blumei Benth, J. Am. Soc. Hortic. Sci., 100, pp. 168-172, (1975)

[3]

Batten D.J., Mullins M.G., Ethylene and adventitious root formation in hypocotyl segments of etiolated mung‐bean (Vigna radiata L.) Willzek seedlings, Planta, 138, pp. 193-197, (1978)

[4]

Bollmark M., Eliasson L., Effects of exogenous cytokinins on root formation in pea cuttings, Physiologia Plantarum, 68, pp. 662-666, (1986)

[5]

Bollmark M., Eliasson L., A rooting inhibitor present in Norway spruce seedlings grown at high irradiance, Physiologia Plantarum, 80, pp. 527-533, (1990)

[6]

Bollmark M., Kubat B., Eliasson L., Variation in endogenous cytokinin content during adventitious root formation in pea cuttings, Journal of Plant Physiology, 132, pp. 262-265, (1988)

[7]

Geneve R.L., Heuser C.W., The relationship between ethephon and auxin on adventitious root initiation in cuttings of Vigna radiata (L.) R. Wilcz, J. Am. Soc. Hortic. Sci., 108, pp. 330-333, (1983)

[8]

Hartmann H.T., Kester D.E., Plant Propagation. Principles and Practices, 4th Ed., pp. 199-297, (1983)

[9]

Ingestad T., Mineral nutrient requirements of Pinus silvestris and Picea abies seedlings, Physiol. Plant., 45, pp. 373-380, (1979)

[10]

Johnson C.R., Hamilton D.F., Rooting of Hibiscus rosa‐sinensis L. cuttings as influenced by light intensity and ethephon, Hort Science, 12, pp. 39-40, (1977)

← 1 2 3 →