Fig. 5From: Heat stress induces spikelet sterility in rice at anthesis through inhibition of pollen tube elongation interfering with auxin homeostasis in pollinated pistilsExpression levels of the YUC genes, rboh genes, and POX gene in rice pistil. a and b YUC genes in NPB and HTS, respectively; c and d rboh genes, and POX gene in NPB and HTS, respectively. Vertical bars denote the standard deviation (n = 4). Different letters indicate significant differences between control and heat stress treatments (P < 0.05)Back to article page