We have a log home that was black with mold and to clean it we use a 50/50 mixture of bleach and washed it off. As it has dried this week, there are apparent streaks from the bleach running down the walls. The walls were kept wet and we started at the bottom.
Home Â» Hydrotropism. Definition. noun. Growth or movement response of a cell or an organism to moisture or water. Supplement. In general, tropism is an orienting response of an organism to a stimulus. It often involves the growth rather than the movement of an organism.
This is of biological significance as it helps to increase efficiency of the plant in its ecosystem. The process of hydrotropism is started by the root cap sensing water and sending a signal to the elongating part of the root. Hydrotropism is difficult to observe in underground roots, since the roots are not readily observable, and root gravitropism is usually more influential than root hydrotropism.