TY - RPRT TI - Three distinct clades of cultured heterocystous cyanobacteria constitute the dominant N2-fixing members of biological soil crusts of the Colorado Plateau, USA AU - C.M. Yeager AU - J. L. Kornosky AU - R.E. Morgan AU - E.C. Cain AU - F. Garcia-Pichel AU - D.C. Housman AU - J. Belnap AU - C.R. Kuske PY - 2007 DO - 10.1111/j.1574-6941.2006.00265.x UR - https://pubs.usgs.gov/publication/70029917 ID - 70029917 ER -