Mycorrhizal associations in rock crevices Vasicular Arbuscular mycorrhizal infections in decaying aerial portions of Adiantum capillus-veneria L. Induced by VA mycorrhizal Bryophytes in rock crevices at Khanspur
Mycorrhizal associations in rock crevices Vasicular Arbuscular mycorrhizal infections in decaying aerial portions of Adiantum capillus-veneria L. Induced by VA mycorrhizal Bryophytes in rock crevices at Khanspur
S. H. Iqbal and Firdaus-e-Bareen
ABSTRACT
The bryophytes in rock crevices at Khanspur were observed to be heavily VA mycorrhizal. Extramatrical vesicular infections were common comprising of simple and aggregated granulated vesicles surrounding the rhizoids and senescing leaves of mosses (Funaria
hygrometrica, Polytrichum commune). Compartmented double-walled vesicles and simple vesicles were common
in the thallus and rhizoids of liverworts (Marchantia palmate) while many types of vesicles occurred in the
rhizoids, stem and leaves of mosses. At the approach of winter the aerial fronds of ferns and other plants in
the rock crevices start senescing. The fine rhizoids of mosses and liverworts were observed penetrating the
decaying aerial portions of Adiantum capillus-veneris L., making them heavily VA mycorrhizal. Vesicular and
arbuscular infections were observed in thestem and fronds of Adiantum.
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December 1990
Vol. 40, Iss. 4
