Nine new species in Australian Nicotiana section Suaveolentes are described, including N. clarksonii M.W.Chase & Christenh., erytheia latifolia latzii M.W.Chase, R.W.Jobson gibbosa D.D.Andrew J.J.Bruhl, olens praecipitis K.Durham, karara Christenh. and bungonia Taseski. Some have been known from herbarium specimens for a long time, but their distinction other concepts was unsuspected until DNA ...

Experiments using different species of the plant Nicotiana and strains of the bacterium Agrobacterium tumefaciens showed that teratoma formation from crown galls was dependent on the combination of bacterial Ti plasmid and host plant used.