TY - JA AU - Arnon,D.I. TI - Copper enzymes in isolated chloroplasts. Polyphenoloxidase in beta vulgaris PY - 1949/// N1 - Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0032-0889 T2 - Plant Physiology ER -