Abstract
Plants with crassulacean acid metabolism (CAM) are rarely the most abundant in plant communities, and rarely attain high biomass, but they are capable of an extraordinary array of physiological activities in a wide range of environments. The peculiar morphology and nocturnal physiology of CAM plants have attracted the curiosity of plant biologists for many years. The most comprehensive syntheses of the environmental biology of desert CAM plants are those of Gibson and Nobel (1986) and Nobel (1988). Epiphytic CAM plants are dealt with by Smith et al. (1986a) and aquatic CAM plants by Boston and Adams (1986). Recent reviews of the metabolic activities of CAM plants have delineated phases of the complex nocturnal-diurnal metabolic cycle and component biochemical and physiological events (Kluge and Ting, 1978; Osmond, 1978; Osmond and Holtum, 1981). However, a decade or so of investigation of these plants in many habitats has uncovered a bewildering array of exceptions and variations. In response to this we now have a new set of terminologies (Cockburn, 1985), pleas that ‘more representative studies are needed from diverse taxa before a generalized theory of CAM will be forthcoming’ (Ting, 1985) and for the need to integrate ecological, physiological and biochemical studies (Lüttge, 1987). Obviously, further studies of the physiological ecology of CAM plants are likely to be most rewarding and this chapter seeks to outline appropriate methodologies for this research. For the most part we will be concerned with modifications of techniques to meet the special problems posed by CAM plant morphology and physiology.
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Osmond, C.B., Adams, W.W., Smith, S.D. (2000). Crassulacean acid metabolism. In: Pearcy, R.W., Ehleringer, J.R., Mooney, H.A., Rundel, P.W. (eds) Plant Physiological Ecology. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-9013-1_12
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