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:
“Knighterrantry is a most chuckleheaded trade, and it is tedious hard work, too, but I begin to see that there is money in it, after all, if you have luck. Not that I would ever engage in it, as a business, for I wouldn’t. No sound and legitimate business can be established on a basis of speculation. A successful whirl in the knighterrantry line—now what is it when you blow away the nonsense and come down to the cold facts? It’s just a corner in pork, that’s all.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“so cold and so
easy to catch, dreamily
moves his delicate feet
and long tail. I hold
my hand open for him to go.
Each minute the last minute.”
—Denise Levertov (b. 1923)
“For, brother, know that this is art, and you
With a cold incautious sorrow stricken dumb,
Have your own vanishing slit of light let through,
Passionate as winter, where only a few may come:
Not idiots in the street find out the lees
In the last drink of dying Socrates.”
—Allen Tate (1899–1979)