WHOI biologist Sonya Dyhrman (left) and MIT/WHOI Joint Program student Elizabeth Orchard lower a sampling net from the research vessel Atlantic Explorer into the waters of the Sargasso Sea, a nutrient-poor region of the North Atlantic. Dyhrman, Orchard, and their colleagues found that Trichodesmium in this region turn on the genes that allow them to acquire phosphorus from phosphonates, a skill few other marine organisms have. (Photo by former WHOI postdoctoral fellow Alena Sevcu)[back]
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