Abstract:
:Aspen (Populus tremuloides Michx.) leaf extracts contain a newly discovered enzyme activity that catalyzes the magnesium ion-dependent elimination of diphosphate from dimethylallyl diphosphate with rearrangement to form isoprene (2-methyl, 1-3-butadiene). This isoprene synthase activity has been partially purified. The nonenzymatic reaction of dimethylallyl diphosphate to isoprene, known to be acid catalyzed, may be insignificant at physiological pH. In contrast, the enzymatic reaction may be responsible for the majority of light-dependent isoprene production by isoprene-emitting plants.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Silver GM,Fall Rdoi
10.1104/pp.97.4.1588subject
Has Abstractpub_date
1991-12-01 00:00:00pages
1588-91issue
4eissn
0032-0889issn
1532-2548journal_volume
97pub_type
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