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CAVITY FORMATION IN WINTER BUDS OF PINUS BANKSIANA
Author(s) -
Cecich Robert A.
Publication year - 1981
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1981.tb12411.x
Subject(s) - pith , meristem , biology , botany , pinus <genus> , shoot
The formation of a cavity between the rib meristem and the pith in winter buds of Pinus banksiana is described. Necrosis of cells at the juncture of the rib meristem and pith begins in November, and by mid‐March the necrotic region enlarges, forming a cavity that separates the rib meristem from the pith. The cavity appears to be formed by autolysis, rather than a pulling apart of the cells. The function of the cavity remains speculative.