Tag Archives | Fruits

Fruits and Veggies Can Be “Trained” to Defend against Herbivores

attack_of_the_killer_tomatoesJane J. Lee writes at National Geographic:

A study published online today in the journal Current Biology found that store-bought cabbage, lettuce, spinach, zucchini, sweet potatoes, carrots, and blueberries respond to light-dark cycles up to about a week after harvest.

And when the produce was kept on the same light-dark cycle as a predator—cabbage looper moth caterpillars (Trichoplusia ni)—it was better able to resist attacks.

Circadian clocks tell plants when the seasons change due to variations in day length, saidJanet Braam, a plant biologist at Rice University in Houston, Texas. But the clock is also critical in plant defenses against insects.

“[Plants] know when the insects eat,” said Braam, who is a co-author on the recent study, “so they can prepare a defense in advance.”

Braam and colleagues knew that levels of protective compounds called glucosinolates were under the control of the circadian clock in a plant called Arabidopsis.

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China Farmers Facing ‘Exploding’ Watermelon Problem (Video)

GallagherGallagher is not responsible. At least it’s not exploding people. Reports the AP via Yahoo News:

BEIJING — The overuse of a chemical that helps fruit grow faster is causing a rash of exploding watermelons in eastern China.

An investigative report by China Central Television airing Tuesday found farms in Jiangsu province were losing acres of fruit to the problem.

It said farmers sprayed too much growth promoter, hoping they could get fruit to market ahead of season and make more money. China is battling rampant misuse of pesticides, fertilizers and food additives, like dyes and sweeteners, meant to make food more attractive and boost sales.

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90 Percent of High School Kids Lack Sufficient Intake of Fruits, Veggies

Fruit_BasketFrom Natural News:

Less than 10 percent of high school students in the United States meet the federally recommended daily intake of fruits and vegetables, according to a study conducted by the Centers for Disease Control and Prevention (CDC).

“A diet high in fruits and vegetables is important for optimal child growth, maintaining a healthy weight, and prevention of chronic diseases such as diabetes, heart disease and some cancers, ” said William H. Dietz, director of the Nutrition, Physical Activity, and Obesity Division of the CDC. “This report will help states determine what is taking place in their communities and schools and come up with ways to encourage people to eat more fruits and vegetables.”

In 2007, the CDC surveyed both adults and high school students on their daily consumption of fruits or vegetables. Even though they are considered less healthy than whole fruits, fruit juices were counted toward daily fruit intake goals.

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