Rehydration-tolerant

Referring to a biological entity (e.g., a cell, organism, or seed) or a material that demonstrates the capacity to withstand and recover effectively from periods of dehydration followed by rehydration. This tolerance typically involves mechanisms to prevent cellular damage during desiccation (drying out), such as the production of protective compounds and structural adaptations. The ability to regain normal function and metabolism upon reintroduction to water is crucial to its definition. This characteristic is vital for survival in fluctuating environments, enabling organisms to persist through periods of water scarcity and resume activity when moisture is available. The degree of tolerance can vary significantly, ranging from partial recovery to complete restoration of function. The mechanisms supporting this resilience are complex and represent crucial adaptations for survival in dry and variable environments.

Rehydration-tolerant meaning with examples

• Certain desert plants are rehydration-tolerant, surviving long periods of drought by entering a dormant state and then rapidly reviving after rainfall. Their leaves possess adaptations, and specialized proteins protect against cellular damage during desiccation and facilitate rapid water uptake. The roots also demonstrate enhanced absorption efficiency, supporting the survival of the plant species.
• Researchers are studying the cellular mechanisms of rehydration-tolerant bacteria found in arid soils, hoping to unlock secrets for creating drought-resistant crops. These bacteria employ protective compounds to shield cellular structures, ensuring they can withstand the extreme conditions. The goal is to introduce these beneficial traits.
• Tardigrades, also known as water bears, are famous for being rehydration-tolerant. They can survive complete desiccation and radiation, retracting into a tun state. They possess compounds to protect cellular proteins and DNA, along with an advanced ability to quickly take up water when reintroduced to its normal environment.
• Seeds of many crop species must be rehydration-tolerant to store them, as they must survive exposure to potentially fluctuating moisture levels during storage and transport. Proper seed storage protocols help to maintain that capacity, which supports continued germination and germination when proper conditions occur. This characteristic is essential for global food security.
• The development of rehydration-tolerant biomaterials is a critical field of scientific study, focusing on creating wound dressings and scaffolds. This capability allows the materials to maintain their structural integrity and functionality even when repeatedly dried and rewetted. The process must be tailored to address these features.