trema cannabina/ニコチン

Plant haemoglobin genes are known to occur in legume and non-legume families and in both nodulating (e.g., Parasponia andersonii) and non-nodulating species (e.g., Trema tomentosa). Their presence in non-nondulating plants raises the possibility that haemoglobins might serve a function in

Hemoglobin genes from the nitrogen-fixing nonlegume Parasponia andersonii and the related non-nitrogen-fixing nonlegume Trema tomentosa have been isolated [Landsmann et al. (1986). Nature 324, 166-168; Bogusz et al. (1988). Nature 331, 178-180]. The promoters of these genes have been linked to a