Herbicide residues in sugar beet roots

Formation & Elimination of Ethanol in Sugar Beet Roots.

Inhibition of water uptake in sugar beet roots by ammonia.

Ammonium sulfate, ammonium carbonate or ammonia gas inhibited water uptake in sugar beet roots whenever the pH was sufficiently high to cause the production of ammonia. When ammonia was removed by aeration, inhibition of the water uptake by roots was rapidly reversed. ATP at 0.2 mm appeared to either wholly or partially prevent the ammonia-induced inhibition of water uptake by roots. ATP may be...

Invertase inhibitors from red beet, sugar beet, and sweet potato roots.

Invertase inhibitors have been isolated and partially purified from red beets, sugar beets, and sweet potatoes. These inhibitors are thermolabile proteins with molecular weights of 18,000 to 23,000. They do not inhibit yeast and Neurospora invertases, but they are reactive with potato tuber invertase and other plant invertases with pH optima near 4.5. There are differences in reactivity of the ...

Sweet and sour: a scientific and legal look at herbicide-tolerant sugar beet.

American sugar beet farmers produce half of our domestic refined sugar valued at over $3 billion per year (APHIS, 2010). The U.S. District Court for the Northern District of California (CA District Court) will soon determine whether U.S. farmers can continue to grow genetically modified (GM) sugar beet (Beta vulgaris ssp vulgaris var altissima) in the case of Center for Food Safety v. Vilsack (...

Responses of sugar beet roots to iron deficiency. Changes in carbon assimilation and oxygen use.

Different root parts with or without increased iron-reducing activities have been studied in iron-deficient and iron-sufficient control sugar beet (Beta vulgaris L. Monohil hybrid). The distal root parts of iron-deficient plants, 0 to 5 mm from the root apex, were capable to reduce Fe(III)-chelates and contained concentrations of flavins near 700 microM, two characteristics absent in the 5 to 1...