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Effects of drought and mycorrhiza on Opuntia
Data on mycorrhizal function in an ecophysiological context are lacking for CAM species growing in a rocky environment. Pimienta-Barrios et al. (pp. 239-245) report that inhibition of AM-fungal colonization using benomyl does not affect photosynthesis, water uptake or P uptake. This suggests that development of the CAM species Opuntia robusta in a highly stressful environment might be regulated by other physiological strategies and mechanisms.
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