The blue light receptor NPH1 (for nonphototropic hypocotyl) has been considered to be the only UV-A/blue light receptor that induces a phototropic response by the hypocotyl and root of Arabidopsis. By analysis of root phototropism (rpt) mutants, we show, however, the involvement of another blue light receptor as well as the existence of two separate signaling pathways working downstream of thes...

Members of the Bric-a-Brac/Tramtrack/Broad Complex (BTB) family direct the selective ubiquitylation of proteins following their assembly into Cullin3-based ubiquitin ligases. Here, we describe a subfamily of nucleus-localized BTB proteins encoded by the LIGHT-RESPONSE BTB1 (LRB1) and LRB2 loci in Arabidopsis (Arabidopsis thaliana) that strongly influences photomorphogenesis. Whereas single lrb1...

Shigella species are generally considered to be unable to ferment salicin (Breed, Murray, and Smith, Bergey's Manual of Determinative Bacteriology, The Williams & Wilkins Co., Baltimore, 1957; Kauffmann, Enterobacteriaceae, E. Munksgaard, Copenhagen, 1950; Edwards and Ewing, Identification of Enterobacteriaceae, Burgess Publishing Co., Minneapolis, 1955). Recently, however, Ser6ny (Acta Microbi...