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The formation of a ligno-suberised layer and necrophylactic periderm in beech bark (Fagus sylvatica L.)Author(s): Primoz Oven; Niko Torelli; Walter C. Shortle; Martin Zupancic
Source: Flora. 194: 137-144.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
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DescriptionBeech (Fagus sylvatica L.) bark was wounded in early April of 1993 and tissue changes followed on days 7, 14, 21, 28, 35, 42, 49, 56, 84, 112, and 140. In 7 days, tissue at the wound surface became necrotic and discoloured. In 14 days the walls of the parenchyma cells immediately underneath the necrotic tissue became thickened and after 21 days became lignified. In 28 days these lignified cells showed intracellular-suberisation. In 42 days the ligno-suberised layer was continuous with the phellem of the superficial periderm. In 35 days we first noted differentiation of the necrophylactic phellogen under the ligno-suberised layer. In 49 days suberised phellem of the necrophylactic periderm differentiated. At 112 days the phellem of the necrophylactic periderm had coalesced with that of the surface periderm. In I40 days abscission of the wound rhytidome began.
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CitationOven, Primoz; Torelli, Niko; Shortle, Walter C.; Zupancic, Martin. 1999. The formation of a ligno-suberised layer and necrophylactic periderm in beech bark (Fagus sylvatica L.). Flora. 194: 137-144.
Keywordsbark, wound reponse, ligno-suberised layer, necrophylactic periderm, Fagus sylvatica
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