The identification of a widespread contaminant of plant cell cultures is reported. Mycobacterium scr~luhtceum Prissick and Masson appears as yellow colonies on the medium and plant tissues of many ornamentals being propagated in vitro. It is a Gram positive and acid fast bacterium and requires a specifically formulated medium for growth in pure culture. Many laboratories have alluded to this co...

In recent years the collection of tropical marine organisms for the aquarium trade has become perceived as an activity with an unsustainable history as well as obvious potential for rehabilitation through resource-based fisheries management and consumer-oriented product certification. In the case of Puerto Rico, collection of ornamentals has existed for decades, though unregulated due to a weak...