Performance of a naturally growing Parmelioid lichen Remototrachyna awasthii against organic and inorganic pollutants

被引:13
作者
Bajpai, Rajesh [1 ]
Karakoti, Neha [1 ]
Upreti, D. K. [1 ]
机构
[1] CSIR Natl Bot Res Inst, Plant Divers Systemat & Herbarium Div, Lichenol Lab, Lucknow 226001, Uttar Pradesh, India
关键词
Biomonitoring; PAH; Heavy metal; Lichen physiology; POLYCYCLIC AROMATIC-HYDROCARBONS; AIR-POLLUTION; NATIONAL-PARK; URBAN; DEGRADATION; BIOMONITORS; QUALITY; MEXICO; DUST; CITY;
D O I
10.1007/s11356-013-1583-3
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The present study aims to assess the level and possible sources of organic and inorganic pollutants in Mahableshwar city in Western part of India and their effect on naturally growing foliose lichen Remototrachyana awasthii (Hale & Patw.) Divakar & A. Crespo. This lichen species growing abundantly in the area was collected from eight different sites on the basis of anthropogenic activities detected in the area. The concentration of inorganic heavy metals (Al, As, Cd, Cr, Fe, Pb, Mn, and Zn) and polycyclic aromatic hydrocarbons (PAHs) were analyzed and correlated with photosynthetic pigments (Chl a, Chl b, total chlorophyll, and carotenoid) together with chlorophyll degradation and protein contents. The concentration of most of the metals at different sites was significantly greater than at the control site (P < 0.001). The highest metal content was found at Bus Stand and Panchgani, a tourist place that experiences heavy traffic activities. The concentration of PAHs, particularly of two-and three-ringed PAHs, was also found to be the highest in samples collected at Bus Stand area. The chlorophyll degradation and protein content were found to be the most sensitive parameters to assess the vitality of lichen thallus against wide range of air pollutants. The effectiveness of R. awasthii as a biomonitor will be investigated in the near future by comparing this species with other biomonitors.
引用
收藏
页码:5577 / 5592
页数:16
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