Environment & Ecology · Ecosystem Adaptations

Consider the following statements regarding mangroves and their salt tolerance mechanisms: I. Mangroves survive in saline environments mainly because they possess a larger number of stomata than inland plants, which helps them rapidly expel excess salt. II. All mangrove species rely only on salt secretion through leaf glands and do not use root-level salt exclusion mechanisms. III. Mangrove cells generally have thinner cell walls to facilitate faster diffusion of salt ions out of the plant tissues. IV. Mangroves are adapted to tolerate low osmotic potential environments commonly found along tropical and subtropical coastlines. How many of the above statements are correct?