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Traumatic resin canal formation as a marker of xylem growth


, : Traumatic resin canal formation as a marker of xylem growth. Forest Science 29(3): 653-659

Anatomical changes in traumatic resin canal formation induced in Tsuga sieboldii by metal pins were examined periodically after insertion. Symptoms of traumatic resin canal formation were first observed in the zone of xylem mother cells within a few days after pinning, and there was a close correlation between these resin canals and the formation of abnormal tissue at the pinned point. Cambial initials at the time of pinning appeared to be in the vicinity of epithelial cells on the cambial side of traumatic resin canals. The validity of using easily discernible, pin-induced traumatic resin canals, instead of minute abnormal tissue, for marking xylem growth is discussed in the light of these findings.


Accession: 001275406

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Related references

Kuroda, K.S.imaji, K., 1983: Traumatic resin canal formation as a marker of xylem growth Tree anatomy, Tsuga sieboldii. Forest science 29(3): 653-659

Blanche C.A.; Lorio P.L.Jr; Sommers R.A.; Hodges J.D.; Nebeker T.E., 1992: Seasonal cambial growth and development of loblolly pine xylem formation inner bark chemistry resin ducts and resin flow. Cambial activity of loblolly pine in central Louisiana [USA] under mild soilwater deficit lasted for 252 days, one-third of which was used in the formation of early-wood. Although more cells formed in the late-wood, the radial increments for both...

Pardos-Carrion, J.; Solis-Sanchez, W., 1977: Influence of the system of resin tapping, without stimulation, on the formation of vertical resin ducts and the radial growth of xylem in Pinus pinaster Ait. trees. Anales Serie: produccion vegetal: 183-210

Kuroda, Keiko, 1998: Seasonal variation in traumatic resin canal formation in Chamaecyparis obtusa phloem. Trunks of Chamaecyparis obtusa were injured to examine seasonal differences in traumatic resin canal formation in secondary phloem. Even after wounding during winter, differentiation of axial parenchyma into epithelium was initiated, and vertical...

Pardos Carrion, J.A., 1980: Effect of 2,4-D on the formation of resin canals and on the radial growth of xylem in plants of Pinus pinaster Ait. Wounding with application of 2,4-D in lanolin to 3-year-old saplings of P. pinaster induced formation of vertical ducts and increased the growth of xylem above and, especially, below the treated area. Both responses showed a delay of 1 month, were...

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Pardos, Ja, 1980: Influence of 2,4-dichlorophenoxyacetic acid on the formation of resin ducts and the radial growth of xylem in saplings of Pinus pinaster Ait. Anales del Instituto Nacional de Investigaciones Agrarias Serie: Recursos naturales: ) 157-163

Martin, D.; Tholl, D.; Gershenzon, J.; Bohlmann, Jörg., 2002: Methyl jasmonate induces traumatic resin ducts, terpenoid resin biosynthesis, and terpenoid accumulation in developing xylem of Norway spruce stems. Norway spruce (Picea abies L. Karst) produces an oleoresin characterized by a diverse array of terpenoids, monoterpenoids, sesquiterpenoids, and diterpene resin acids that can protect conifers against potential herbivores and pathogens. Oleoresin...

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