Fig. 3
From: Dynamic biospeckle analysis, a new tool for the fast screening of plant nematicide selectivity
Biospeckle intensity and biospeckle volume. a, b Distribution of the biospeckle intensity of detected objects, measured in grey scale, and its correlation with biospeckle volume. Data points represent individual nematodes which were imaged at 5 individuals per cuvette. Within the range of 300 to 1500 in biospeckle volume, N = 34 for bacterial feeders and N = 24 for plant feeders. R2 values for linear regressions are 0.45 for bacterial feeders and 0.44 for plant feeders. c Changes to biospeckle volume over time, in the absence of chemical treatment. Data from 5 replicate samples for each nematode type, with 5 nematodes contained in each sample. For bacterial feeders biospeckle volume decreased after insertion, while plant feeders showed large variation and biospeckle volume of Trichodorus nematodes remained stable. Biospeckle volumes are shown as the average of all detected objects; N values are given for each of the 3 sampling times and error bars represent the standard error