TY - JOUR
T1 - Hydroquinones from defensive secretion of a giant Pacific millipede, Acladocricus setigerus (Diplopoda: Spirobolida)
AU - Wu, Xiaogang
AU - Buden, Donald W.
AU - Attygalle, Athula B.
PY - 2007/9
Y1 - 2007/9
N2 - The presence of considerable quantities of hydroquinones including hydroquinone, 2-methylhydroquinone, 2,3- dimethoxyhydroquinone, 2-methoxy-3-methylhydroquinone, and 2,3-dimethoxy-5-methylhydroquinone renders the defensive secretion of Acladocricus setigerus (Silvestri, 1897) significantly different from that of other quinone-producing millipedes. In addition, two hitherto undescribed compounds, namely, 2,3-dimethoxy-5- methylhydroquinone and 2-methyl-3,4-methylenedioxyphenol, were characterized from the defensive secretion. However, it is uncertain if the latter compound is formed after the release of the secretion. The two major compounds, 2-methyl-1,4-benzoquinone and 2-methoxy-3-methyl-1,4-benzoquinone, constitute about 75% of the defensive fluid. Furthermore, hydrocarbons, which are typically present in the secretions of most other arthropods that use benzoquinones as repellents, are notably absent in the secretion of A. setigerus.
AB - The presence of considerable quantities of hydroquinones including hydroquinone, 2-methylhydroquinone, 2,3- dimethoxyhydroquinone, 2-methoxy-3-methylhydroquinone, and 2,3-dimethoxy-5-methylhydroquinone renders the defensive secretion of Acladocricus setigerus (Silvestri, 1897) significantly different from that of other quinone-producing millipedes. In addition, two hitherto undescribed compounds, namely, 2,3-dimethoxy-5- methylhydroquinone and 2-methyl-3,4-methylenedioxyphenol, were characterized from the defensive secretion. However, it is uncertain if the latter compound is formed after the release of the secretion. The two major compounds, 2-methyl-1,4-benzoquinone and 2-methoxy-3-methyl-1,4-benzoquinone, constitute about 75% of the defensive fluid. Furthermore, hydrocarbons, which are typically present in the secretions of most other arthropods that use benzoquinones as repellents, are notably absent in the secretion of A. setigerus.
KW - 2,3-dimethoxy-5-methylhydroquinone
KW - 2-methyl-3,4-methylenedioxyphenol
KW - Acladocricus setigerus
KW - Benzoquinones
KW - Chemical defense
KW - Chuuk
KW - Hydroquinones
KW - Micronesia
KW - Millipede
UR - http://www.scopus.com/inward/record.url?scp=34547878035&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547878035&partnerID=8YFLogxK
U2 - 10.1007/s00049-007-0372-1
DO - 10.1007/s00049-007-0372-1
M3 - Article
AN - SCOPUS:34547878035
SN - 0937-7409
VL - 17
SP - 131
EP - 138
JO - Chemoecology
JF - Chemoecology
IS - 3
ER -