PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21762167-7 2011 Our findings, in addition to strengthening already known mechanisms, revealed the existence of a new complex signaling framework in which brassinosteroids (BRI1), the module MKK2-MAPK6 and the fine regulation of nitric oxide homeostasis via the co-expression of synthetic (nitrate reductase) and scavenging (hemoglobin) components may play key functions in maize responses to nitrate. Brassinosteroids 138-154 nitrate reductase [NADH] 1 Zea mays 262-290