Efficiency of polyP extraction using plankton lysis buffer (plank.
lysis) vs phenol-chloroform (phenol) from (A) wild-type C.
reinhardtii collected using filtration, (B) wild-type C. reinhardtii collected using centrifugation, (C) V. perlucida collected using filtration, and (D) V. perlucida collected using centrifugation. The results
are the amount of polyP (nanomoles) measured in 1 mL of culture samples
of various cell quantities. The vertical bars represent the expected
polyP amount in the samples (100% polyP), and the markers indicate
results estimated using various extraction and quantification methods
(e.g., plankton lysis-JC-D7 means polyP is extracted using the plankton
lysis buffer and quantified using JC-D7 fluorescence).