The Seed and the Metabolism Regulation

Area of Science:

• Plant Biology
• Physiology
• Biochemistry

Background:

• Seeds are vital dry structures containing dormant plant embryos.
• Orthodox seeds maintain low water content to halt metabolic processes like respiration.
• Unlike other organisms, seeds withstand desiccation due to unique protective mechanisms.

Purpose of the Study:

• To review the physiological processes enabling seed survival during dehydration and rehydration.
• To explore seed adaptations for dormancy, repair, and germination.
• To highlight the relevance of seed physiology for climate change adaptation.

Main Methods:

• This review synthesizes existing research on seed physiology.
• Focuses on hydration forces, respiration, and biochemical reactions.
• Examines molecular protection and repair mechanisms.

Main Results:

• Seeds employ sophisticated molecules to protect cellular components from dehydration/rehydration damage.
• Dormancy is a regulated process, synchronized with environmental cues for optimal germination.
• Programmed repair mechanisms enhance germination success and seed longevity.

Conclusions:

• Seed physiology allows a successful transition from a dry state to a living system.
• Understanding these processes is key for basic metabolic regulation knowledge.
• Seed germination control is critical for agriculture amidst global warming and climate change.