Histochemical aspects of the amorphous layers in two species of Parmelia apseudocyphellate and a pored epicorticate, were compared. In P. saxatilis this layer, called the ‘ syncortex ’ (a new term), is composed of strongly acidic (sulphated) polysaccharides containing hyaluronic acid. It is easily distinguishable histochemically from the cortical interhyphal matrix. In P. caperata the mild acidic polysaccharidic composition of the epicortex and the interhyphal matrix is shown. The function of these amorphous layers is discussed on the basis of these results.
The Cortical Surfaces in Parmelia Saxatilis and P.Caperata: A Histochemical Approach
MODENESI, PAOLO;
1986-01-01
Abstract
Histochemical aspects of the amorphous layers in two species of Parmelia apseudocyphellate and a pored epicorticate, were compared. In P. saxatilis this layer, called the ‘ syncortex ’ (a new term), is composed of strongly acidic (sulphated) polysaccharides containing hyaluronic acid. It is easily distinguishable histochemically from the cortical interhyphal matrix. In P. caperata the mild acidic polysaccharidic composition of the epicortex and the interhyphal matrix is shown. The function of these amorphous layers is discussed on the basis of these results.
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