Cold
One of the types of Abiotic Stress is cold. This has a huge impact on farmers. Cold impacts crop growers all over the world in every single country. Yields suffer and farmers also suffer huge losses because the weather is just too cold to produce crops (Xiong & Zhu, 2001). In the U.S. one of the largest industries is agriculture. Humans have planned the planting of our crops around the seasons. Even though the seasons are fairly predictable, there are always unexpected storms, heat waves, or cold snaps that can ruin our growing seasons. ROS stands for reactive oxygen species. ROS plays a large role in mediating events through transduction. Cold stress was shown to enhance the transcript, protein, and activity of different ROS-scavenging enzymes. Low temperature stress has also been shown to increase the H2 O2 accumulation in cells. Plants can be acclimated to low or even freezing temperatures. If a plant can go through a mild cold spell this activates the cold-responsive genes in the plant. Then if the temperature drops again, the genes will have conditioned the plant to cope with the low temperature. Even below freezing temperatures can be survived if the proper genes are activated (Suzuki & Mittler, 2006).
Read more about this topic: Natural Stress
Famous quotes containing the word cold:
“First, the cold friction of expiring sense
Without enchantment, offering no promise
But bitter tastelessness of shadow fruit
As body and soul begin to fall asunder.
Second, the conscious impotence of rage
At human folly,”
—T.S. (Thomas Stearns)
“When all is said and done, friendship is the only trustworthy fabric of the affections. So-called love is a delirious inhuman state of mind: when hot it substitutes indulgence for fair play; when cold it is cruel, but friendship is warmth in cold, firm ground in a bog.”
—Miles Franklin (1879–1954)
“Our [British] summers are often, though beautiful for verdure, so cold, that they are rather cold winters.”
—Horace Walpole (1717–1797)