======Hydropassive response======
**受動的開閉応答**

（対）[[h:hydroactive_response|Hydroactive response 能動的開閉応答]]

気孔開度の内的制御に関する用語。葉のある時点の水分状態に応じた孔辺細胞と副細胞（表皮細胞）の膨圧の変化によって気孔開度が決まる応答。

----
  - Brodribb T.J., McAdam SAM and Carins Murphy M.R. (2017) Xylem and stomata, coordinated through time and space. Plant, Cell & Environment, 40: 872–880
  - Brodribb T.J. and McAdam SAM (2011) Passive origins of stomatal control in vascular plants. Science, 331 :582–585