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Table 1 Effect of purified AI-2 on encystment and germination of P. nicotianae zoospores after overnight incubation at 23°C

From: Zoospore interspecific signaling promotes plant infection by Phytophthora

Conc. of
AI-2 (μM)
No. of cysts No. of
germinating
cysts
No. of empty
cells
No. of lysed
zoosporesa
  Mb Stdb M Std M Std M Std
0 5 0.3 12 2.3 39 1.0 1 3.8
0.01 10 0.3 7 0.5 22 1.3 17 1.0
0.1 5 0.5 4 0.8 22 0.8 25 0.5
1 2 0.3 0 0.0 21 1.8 33 2.0
10 11 0.5 0 0.0 22 2.1 19 2.5
100 20 1.0 0 0.0 0 0.0 36 1.0
1000 14 1.3 0 0.0 0 0.0 42 1.3
  1. a Difference between the total number of zoospores (56 ± 4) in SDW and those countable in AI-2 at each concentration.
  2. b M is the mean from 12 replicate fields (at 100×) of three assays. Std is the standard deviation.