Fig. 1From: Transcriptomic and physiological analysis of the response of Spirodela polyrrhiza to sodium nitroprussideThe effect of SNP stress on the photosynthetic pigment content and chlorophyll fluorescence of S. polyrrhiza. A chlorophyll a content; B chlorophyll b content; C carotenoid content; D Fv/Fm; E ABS/RC; F DIo/RC. The values are the means ± standard errors of triplicate assays. Bars with different lowercase letters are significantly different by one-way ANOVA (P < 0.05)Back to article page