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They have this typical mycelium. But they only grow in saltwater. So we’re thinking they’re obligate marine. There’s so … far no species or no strains known that really grow in freshwater. But they’re actually pretty orange, and they make …

… feasting on the compounds that plants secrete through their roots, creating a lively zone called the rhizosphere. In …

… , a new study suggests, is displacing these important cold-water communities of algae with warm-adapted ones, a trend … the global ocean. Phytoplankton communities in warmer waters, including the tropics, tend to be dominated by … (microorganisms without a defined nucleus). Colder waters nearer the poles, however, tend to favor eukaryotes ( …

… unexpected complexity At first glance, the slightly murky waters in the tube look like a scoop of stormwater, complete with leaves, debris, and even lighter … But in the Petri dish, the thin vermicelli-like threads floating delicately above the leaf debris are revealed to be …