Biodeterioration Studies on Some Monuments of Gwalior Division, Madhya Pradesh, India with Calcium and Magnesium Accumulation in Lichens

Abstract

Accumulation of Calcium (Ca) and Magnesium (Mg) were determined in thallus as well as in its rock substratum of three lichen species i.e. Peltula patellata, P. placodizans and Phylliscum indicum, found growing on monuments of Gwalior Division. Out of three species estimated for their calcium and magnesium accumulation in their thalli, Peltula patellata and Phylliscum indicum accumulated the higher concentration of calcium i.e. 198.6±0.4 and 136.8±0.95 μgg-1 dry weight respectively. Phylliscum indicum and Peltula patellata exhibits higher accumulation of magnesium i.e. 376.8±2.25 and 293.05±0.96 μgg-1 dry weight respectively. All the three lichen species exhibit higher accumulation of calcium and magnesium in their thalli as compared with the substrates they are growing.