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Rice
Fig. 2 | Rice

Fig. 2

From: Heat stress induces spikelet sterility in rice at anthesis through inhibition of pollen tube elongation interfering with auxin homeostasis in pollinated pistils

Fig. 2

Changes in auxin levels, and POD activities in the pistil under heat stress. Rice plants were sprayed with either 10 μmol·L− 1 NAA or 100 μmol·L− 1 AOPP under natural and heat-stress conditions. a and b show the pistil auxin levels in NPB and HTS, respectively; c and d show the POD activity in the pistil in NPB and HTS, respectively; POD is peroxidase. Vertical bars denote the standard deviation (n = 3). Different letters indicate significant differences between control and heat stress treatments (P < 0.05)

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