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Cassava

Cassava (Manihot esculenta), also called yuca or manioc, a woody shrub of the Euphorbiaceae (spurge family) native to South America, is extensively cultivated as an annual crop in tropical and subtropical regions for its edible starchy tuberous root, a major source of carbohydrates. It differs from the similarly-spelled yucca, an unrelated fruit-bearing plant.

Cassava is the third largest source of food carbohydrates in the world. Nigeria is the world's largest producer of cassava. It is classified as sweet or bitter, depending on the level of toxic cyanogenic glucosides. (However, bitter taste is not always a reliable measure.) Improper preparation of cassava can leave enough residual cyanide to cause acute cyanide intoxication and goiters, and has been linked to ataxia or partial paralysis. Nevertheless, farmers often prefer the bitter varieties because they deter pests, animals, and thieves. In some locations the more toxic varieties serve as a fall-back resource (a "food security crop") in times of famine.

For more information about Cassava, read the full article at Wikipedia.
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Poisonous toxins a risk to African food security

A staple crop, known as cassava, in southeast Africa contains levels of toxins above those recommended safe for human consumption, a new study has found.

Biology / Biotechnology

created May 02, 2012 | popularity 3 / 5 (2) | comments 0

New databases harvest a rich bounty of information on crop plant metabolism

The Plant Metabolic Network, which is based at Carnegie's Department of Plant Biology, has launched four new online databases that offer an unprecedented view of the biochemical pathways controlling the metabolism of corn, ...

Biology / Biotechnology

created Mar 29, 2012 | popularity 5 / 5 (1) | comments 0

UN warns cassava virus, first identified by Bristol researchers, nearing an epidemic in Africa

A virus that attacks the cassava plant – estimated to be the world’s third most important staple crop – is reaching epidemic proportions in parts of Africa, UN scientists warned today.

Biology / Other

created Nov 18, 2011 | popularity 5 / 5 (3) | comments 0

Using cassava to address vitamin A deficiency

The roots of cassava (Manihot esculenta) serve as the primary source of carbohydrates in the diets of people in many arid regions of the world, including more than 250 million people in sub-Saharan Africa ...

Biology / Biotechnology

created Oct 04, 2010 | popularity 5 / 5 (2) | comments 0

Scientists mount a 'sting operation' in Thailand to tackle a devastating pest outbreak

In the start of a carefully crafted emergency campaign to thwart a pest outbreak that is wreaking havoc on Thailand's vital cassava production, agricultural researchers will release a quarter of a million parasitic wasps ...

Biology / Ecology

created Jul 16, 2010 | popularity 5 / 5 (1) | comments 0

In the World: Nanotech on the farm

Cassava is a tropical root vegetable and staple crop for millions of people in sub-Saharan Africa. However, it's tricky to handle: Once the root is removed from the ground, it spoils within one to three days, ...

Chemistry / Biochemistry

created Mar 12, 2010 | popularity not rated yet | comments 0

Researchers complete draft genome sequence for cassava

A team of academic, government and industry researchers has completed a first draft of the cassava (Manihot esculenta) genome. The project is an important first step in accelerating the pace of research on this subsistence ...

Biology / Biotechnology

created Nov 09, 2009 | popularity not rated yet | comments 0