Among the halophytes, the seagrasses, which are submerged plants of shallow marine meadow, have salt tolerance, because the osmolality of cytoplasm is adjusted to match the osmolality of the seawater, so that desiccation of the plant does not occur. This contrasts the strategies of excluders and succulents, which are primarily salt avoiding mechanisms, attempts to reduce salt concentrations within the cytoplasm of photosynthetic cells.