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. 2008 Sep;3(9):733–736. doi: 10.4161/psb.3.9.6489

Figure 2.

Figure 2

Model of floral stages at which abscission subfunctions may take place. Floral stage numbers are further defined elsewhere.2 Abscission signal receipt is expected to take place before anthesis because abscission regulators have accumulated by S12.2 These include the HAESA receptor kinase13 and multiple ethylene response factors.2 Signaling at or beyond anthesis is evidenced by accumulation at S13 of IDA ligand transcript required for abscission.14 Evidence that a subset of stamen AZ cells have completely separated by S15c is provided in Cai and Lashbrook.2 GH9 is Glycosyl Hydrolase Family 9; GH7 is Glycosyl Hydrolase Family 17.