Production of wound ethylene was investigated in rib segments excised from flower buds of morning-glory (Ipomoea tricolor). Segments of the ribs were cut from buds 2 days before flower opening, floated overnight on 5 mm KCl solution, and transferred to agar the following morning. These immature segments evolved only a small quantity of ethylene during incubation on agar, with most of the produc...

Fig. 1. A 59-year-old female with parkinsonian multiple system atrophy (MSA-P) with no vertical supranuclear gaze-palsy. A T2weighted image suggests the lateral margin of the posterior tegmentum of the midbrain is ‰at or slightly concave. Note that both superior and inferior colliculi are present in the same plane. Fig. 2. A midsagittal T1-weighted image of the same patient. The horizontal line...