Heavy Metal Absorption Efficiency of two Species of Mosses (Physcomitrellapatens and Funariahygrometrica)StudiedinMercury Treated Culture under Laboratory Condition.

摘要

As an important component of ecosystems, mosses have a strong influence on the cycling of water, energy and nutrient. Given their sensitivity to environmental change, mosses can be used as bioindicators of water quality, air pollution, metal accumulation and climate change. In the present study,the growth, differentiation and heavy metal (Hg) absorption of two species of mosses like Physcomitrella patens and Funariahygrometrica were studied in solid cultures under laboratory conditions. It was observed that, the number of gametophores developed from single inoculated gametophores after 45 days of growth of F. hygrometrica was 11±2.0 in control whereas it has decreased at higher concentrations, 4±1.5 in lppm of mercury treatment. P. patens also shows asimilar trend. The heavy metal uptake of both the species of mosses