TY - JOUR
T1 - Defensive chemicals of two species of Trachypachus motschulski
AU - Attygalle, Athula B.
AU - Wu, Xiaogang
AU - Ruzicka, Josef
AU - Rao, Sheetal
AU - Garcia, Silvina
AU - Herath, Kithsiri
AU - Meinwald, Jerrold
AU - Maddison, David R.
AU - Will, Kipling W.
PY - 2004/3
Y1 - 2004/3
N2 - Analyses of pygidial gland contents of two species of a previously uninvestigated family of beetles (Trachypachidae) by Gas Chromatography-Mass Spectrometry (GC-MS) revealed that their chemistry is similar to that reported from many members of the family Carabidae. Nevertheless, the composition of defensive gland fluids of the two species Trachypachus slevini and T. gibbsii differs sufficiently to distinguish between the two species solely on the basis of their defensive chemistry. The major components of T. slevini glandular fluid are methacrylic, tiglic, and octanoic (= caprylic) acids, together with the hydrocarbon (Z)-9-pentacosene. In contrast, the glandular contents of T. gibbsii contain a rather unique mixture of polar and nonpolar compounds, the principal constituents of which are methacrylic and ethacrylic acids (= 2-ethylacrylic acid), together with 2-phenylethanol, 2-phenylethyl methacrylate, 2-phenylethyl ethacrylate, and (Z)-9-pentacosene.
AB - Analyses of pygidial gland contents of two species of a previously uninvestigated family of beetles (Trachypachidae) by Gas Chromatography-Mass Spectrometry (GC-MS) revealed that their chemistry is similar to that reported from many members of the family Carabidae. Nevertheless, the composition of defensive gland fluids of the two species Trachypachus slevini and T. gibbsii differs sufficiently to distinguish between the two species solely on the basis of their defensive chemistry. The major components of T. slevini glandular fluid are methacrylic, tiglic, and octanoic (= caprylic) acids, together with the hydrocarbon (Z)-9-pentacosene. In contrast, the glandular contents of T. gibbsii contain a rather unique mixture of polar and nonpolar compounds, the principal constituents of which are methacrylic and ethacrylic acids (= 2-ethylacrylic acid), together with 2-phenylethanol, 2-phenylethyl methacrylate, 2-phenylethyl ethacrylate, and (Z)-9-pentacosene.
KW - Defensive secretion
KW - Methacrylic acid
KW - Octanoic acid
KW - Tiglic acid
KW - Trachypachidae
KW - Trachypachus gibbsii
KW - Trachypachus slevini
UR - http://www.scopus.com/inward/record.url?scp=1842483299&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1842483299&partnerID=8YFLogxK
U2 - 10.1023/B:JOEC.0000018630.79922.94
DO - 10.1023/B:JOEC.0000018630.79922.94
M3 - Article
C2 - 15139309
AN - SCOPUS:1842483299
SN - 0098-0331
VL - 30
SP - 577
EP - 588
JO - Journal of Chemical Ecology
JF - Journal of Chemical Ecology
IS - 3
ER -