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Apoplastic Synthesis of Nitric Oxide by Plant Tissues
The Plant Cell
Nitric oxide (NO) is an important signaling molecule in animals and plants. In mammals, NO is produced from Arg by the enzyme NO synthase. In plants, NO synthesis from Arg using an NO synthase-type enzyme and from nitrite using nitrate reductase has been demonstrated previously. The data presented in this report strongly support the hypothesis that plant tissues also synthesize NO via the nonenzymatic reduction of apoplastic nitrite. As measured by mass spectrometry or an NO-reactivedoi:10.1105/tpc.017822 pmid:14742874 fatcat:v2rqdh5oqveejlz5djnkbw43hq