Like a priceless painting, the beautiful blue and green swirl in a lake or pond presents a look-don’t-touch kind of situation. It’s the work of proliferating cyanobacteria, also known as blue-green ...

Vol. 137, No. 1, Selected papers from the PROCEEDINGS OF THE FIFTH INTERNATIONAL SYMPOSIUM ON NITROGEN FIXATION WITH NON-LEGUMES (November (I), 1991), pp. 151-155 (5 pages) The leaf cavities and the ...

Light, scanning electron, and transmission electron microscopy were used to follow sporocarp development in Azolla mexicana and the mechanism by which sporocarps become inoculated with symbiotic ...

Azolla is a floating aquatic fern with a very fast growth. That’s important for multiple reasons, the first being that the fern shows “great promise as a biofuel,” says Rothfel. While it’s been used ...