NURSING ANM AND GNM

Detailed explanation-1: -In contrast to halotolerant organisms, obligate halophiles require NaCl concentrations higher than 3% NaCl or above of seawater, with about 3.5% NaCl [4]. The tolerance parameters and salt requirements are dependent on temperature, pH, and growth medium.

Detailed explanation-2: -One mechanism halophiles use to survive in high concentrations of salt is the synthesis of osmoprotectants, which are also known as compatible solutes. These work by balancing the internal osmotic pressure with the external osmotic pressure, making the two solutions isotonic, or close to it.

Detailed explanation-3: -Halotolerant bacteria can grow in the absence and presence of high salt concentrations. Obligate, or strict halophiles, require 3% or higher salt concentration. The common features of halophilic organisms include resistance to high salt concentration and low nutritional requirements.