Secondary Metabolites and Its Isolation and Characterisation

摘要: Secondary metabolites are known to protect lichens against increasing environmental stresses such as light exposure, water potential changes, microbial and herbivore interactions other changes associated with in conditions. Toxitolerant show resistance ambient levels of pollutants which may be phenotypic or genotypic. In recent years, more attention is being paid the chemical characterisation phenotype. The metabolome consists two types compounds, primary secondary metabolites. compounds involved basic functions living cell, respiration biosynthesis needed for a while some species specific, play role interaction cell its environment used tool from external biotic abiotic factors, including defence elevated pollutant concentration. As metabolic profiles pollution indicators (biosensors) have great risk assessment ecosystem. Therefore, isolation provide direct evidence about air quality-induced metabolomic lichens. This chapter provides insight into various chromatographic techniques modern spectroscopic lichen substances.