Science Fair Project Encyclopedia
Leghemoglobin
The oxygen carrier leghemoglobin (also legoglobin) is a hemoprotein found in leguminous plants. In plants with nitrogen fixing bacteria (such as alfalfa or soybeans), the presence of oxygen will poison the bacterium. Leghemoglobin acts as a natural defense against oxygen toxicity by scavenging free oxygen in these systems. The protein itself is a product of both the plant and the bacterium; the apoprotein is produced by the plant and the heme by the bacterium.
See also: hemoglobin, myoglobin
12-03-2008 10:22:39
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details