Table 2.

Summary of Microinjection Results with Lily Pollen Tubes

TreatmentMicroinjection ConcentrationNo. of Tubes TreatedGrowth CessationaAverage Growth Rate (μm hr−1)
Tris-HCl3 mM175 (29)204
GTP-γ-S3 mM143 (21)304
GDP-β-S3 mM2818 (64)120
Preimmune serum1.2 mg mL−1154 (26)226
Anti-Gzα antibody1.2 mg mL−1219 (42)81
  • a Growth cessation indicates the number of cessation tubes. Numbers within parentheses indicate the percentage of growth cessation.