Meristematic Activity in Relation to Wound Xylem Differentiation

Fosket, Donald E.

doi:10.1007/978-1-4684-3207-7_3

Cited by 3 publications

(1 citation statement)

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“…With continued cell divisions, under the silicon tubing, mutual cell pressures increased. In addition to pressure, cell divisions in the apical meristem (Fosket 1972) belonging to the scion are essential for the formation of a strong graft union. Lateral shoots of the stock plant compete for solutes (similar to *'^Rb+) and an increase in their content in growing scion tissues indicates successful graft formation.…”

Section: Discussionmentioning

confidence: 99%

Establishment, graft union characteristics and growth of Prunus micrografts

Gebhardt

Goldbach²

1988

Physiologia Plantarum

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A micrografting technique for use on shoots derived by shoot‐tip culture is described. Autografts of Prunus domestica cv. Hauszwetsche as well as heterografts of several sour cherry cultivars (Prunus cerasus L. cvs Schattenmorelle, Weiroot 158, Köröser) were established. Successful graft formation in vitro was confirmed by translation of 86Rb+ from the stock root into growing scion tissues. A mechanically strong graft union was formed during the course of a 3‐week subculture of micrografts in a liquid medium without the addition of growth regulators. In the case of graft rejection, 86Rb+ was mainly attracted to new developing shoots from lateral meristems of the stock plant. Histological examination of the graft union revealed callus formation, cytodifferentiation and xylogenesis leading to the formation of vascular connections. Stem elongation after micrografting was related to vigour of the stock and scion genotypes. Early stem elongation could be used as a criterion for preselection of growth vigour in graft combinations. Micrografts were transferred to soil and grown in the greenhouse.

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Section: Discussionmentioning

confidence: 99%