A mosaic disease of turnip [Brassica rapa L.) occurs on Long Island, N. Y. Typical specimens of this disease were obtained for comparative greenhouse studies with virus diseases affecting certain cultivated crucifers in California {lô, 16,17,18)} It is the purpose of this paper to describe briefly the symptoms of this mosaic disease of turnip from New York, to present experimental evidence on t...

Abstract Xanthomonas campestris pv. campestris, the causal agent of black rot crucifers, was one first bacterial plant pathogens ever identified. Over 130 years later, remains a threat to cabbage, cauliflower, and other Brassica crops around world. Recent genomic genetic data are informing our understanding X. taxonomy, dissemination, inoculum sources, virulence factors. This new knowledge prom...

BACKGROUND In Arabidopsis thaliana and other crucifers, the glucosinolate-myrosinase system contributes to resistance against herbivory by generalist insects. As yet, it is unclear how crucifers defend themselves against crucifer-specialist insect herbivores. METHODOLOGY/PRINCIPAL FINDINGS We analyzed natural variation for resistance against two crucifer specialist lepidopteran herbivores, Pi...

Cruciferous vegetables contain isothiocyanates, which show potent chemopreventive activity against bladder cancer in both in vitro and in vivo studies. However, previous epidemiologic studies investigating cruciferous vegetable intake and bladder cancer risk have been inconsistent. Cooking can substantially reduce or destroy isothiocyanates, and could account for study inconsistencies. In this ...