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Rice
Fig. 6 | Rice

Fig. 6

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

Fig. 6

Descriptive model of the function of auxin in the pollen tube growth in rice pistil. The level of auxin, ROS and POD in the pistil are obviously affected by heat stress, and thus the relationships among them are involved in the pollen tube elongation in the pistil. The triangle symbol indicates the pollen tube in the pistils, while the triangle in red indicates the pollen tube under natural conditions, and that the green triangle indicates the ceasing of pollen tube growth in the style under heat stress. PTG, denotes pollen tube growth. The pointed arrow , indicates enhancement, while the blunt-ended arrow , indicates inhibition

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