....for article and issue cover illustration. Final proofs attached. Acknowledged. Great program. Will send reprint(s) and final pdf on request. Many thanks John F. Allen Professor of Plant Cell Biology Plant Biochemistry Center for Chemistry and Chemical Engineering Lund University Box 124 SE-221 00 Lund Sweden Tel: +46 46 222 7788 (Office); +46 46 222 4073 (Laboratory) Fax: +46 46 222 4009 (Direct); +46 46 222 4116 (Departmental) E-mail: john.allen@plantbio.lu.se Plant Cell Biology: http://plantcell.lu.se Publications: http://plantcell.lu.se:591/john/