Biotechnology for Phytomonitoring
The various forms of foliar damage caused by air pollutants to plants, including easily visible chlorotic and necrotic symptoms, have been successfully used to detect and monitor these pollutants in the natural environment (see the chapters by I. Nouchi, this volume). The use of plants for such monitoring (phytomonitoring) has both advantages and disadvantages over methods based on physicochemical analyses (see the chapters by I. Nouchi and by M. Burchett et al.). Plant materials suitable for such a purpose must demonstrate high sensitivity, specificity, and reproducibility of the symptoms in addition to allowing easy detection and measurement of the degree of damage. For example, sensitive strains of plants such as tobacco, morning glory, and clover have been used for phytomonitoring (see the chapter by I. Nouchi). Excellent strains, such as ozone-sensitive Bel-W3 tobacco, have also been developed by traditional breeding and selection (Heggestad 1991).
KeywordsTransgenic Plant Salicylic Acid Sulfur Dioxide Endogenous Gene Kentucky Bluegrass
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