Question

Harmful effect of oxidative stress on seed germination

Answer 1

Answer:

Explanation:

Reactive oxygen species (ROS), released during normal metabolism of oxygen, are known to have significant roles in the process of seed germination.  However, the ROS levels must be closely regulated in a relatively narrow range for germination to proceed.  If ROS levels are too low seeds will never leave dormancy, and if they are too high then seeds will suffer excessive oxidative damage during seed imbibition and will be non-viable. Research has shown that mitochondrial function and antioxidant scavenging systems are critical for maintaining the right balance of ROS.