A Note on the Formation of Compression Wood Induced by Morphactin IT 3456 in <i>Thuja</i> Shoots

Authors

  • J. E. Phelps
  • E. A. McGinnes
  • M. Smoliński
  • M. Saniewski
  • Janina Pieniążek

Keywords:

<i>Thuja occidentalis</i>, compression wood, morphactins, microscopy

Abstract

Light and scanning electron microscopes were used to examine the structure of normal wood, naturally formed compression wood, and wood formed after and influenced by morphactin IT 3456 treatment in Thuja occidentalis L. lateral shoots. Morphactin strongly induced typical compression wood formation around those shoots. On the basis of these and prior data, a relationship apparently exists between morphactin treatment and the formation of compression wood in Coniferales.

References

Backhaus, R., and R. M. Sachs. 1975. Tree growth inhibition by bark application of morphactins. Hort. Sci.10(3):43 (Abstract).nBannan, M. W. 1941. Wood structure of Thuja occidentalis.Bot. Gaz.103:295-309.nFrank, J. R., R. A. Creager, P. C. Goetz, T. L. Whigham, W. A. Haverinen, and W. E. Tozer. 1975. Selecting the best growth retardants for woody species-a three year study. Hort. Sci.10(3):43 (Abstract).nPhelps, J. E., M. Saniewski, M. Smoliński, J. Pieniążek, and E. A. McGinnes, Jr. 1974. A note on the structure of morphactin-induced wood in two coniferous species. Wood Fiber6(1):13-17.nPieniążek, J., M. Smoliński, and M. Saniewski. 1970. Induced structural changes in anatomy of apple shoots after treatment with morphactin IT 3456 and other growth regulators (NAA, GA, BA). Acta Agrobotanica23:387-396.nSmoliński, M., M. Saniewski, and J. Pieniążek. 1972. The effect of morphactin IT 3456 on cambial activity and wood differentiation in Picea excelsa.Bull. Acad. Polon. Sci., Ser. Sci. Biol.20:431-435.nWesting, A. H. 1965. Formation and function of compression wood in gymnosperms. Bot. Rev.31:381-480.nWesting, A. H. 1968. Formation and function of compression wood in gymnosperms. II. Bot. Rev.34:51-78.n

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Published

2007-06-05

Issue

Number 4 / Winter 1977

Section

Research Contributions

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