geotropism

1.Auxins influence the growth of stems toward light (phototropism) and against the force of gravity (geotropism).

它可影响茎向光性和背地性生长。

2.The geotropism growth was a response of hypha to gravity and the geotropic sensitive was at the hyphal apex.

丛枝菌根真菌菌丝延伸生长部位是菌丝尖端，其生长向地性是对地心引力应，应部位也在生长菌丝尖端。