Abstract
Mosqutio larvicidal activity of Chamaecyparis obtusa leaf-derived materials against the 4th-stage larvae of Aedes aegypti (L.), Ochlerotatus togoi (Theobald), and Culex pipiens pallens (Coquillett) was examined in the laboratory. A crude methanol extract of C. obtusa leaves was found to be active (percent mortality rough) against the 3 species larvae; the hexane fraction of the methanol extract showed a strong larvicidal activity (100% mortality) at 100 ppm. The bioactive component in the C. obtusa leaf extract was characterized as beta-thujaplicin by spectroscopic analyses. The LC50 value of beta-thujaplicin was 2.91, 2.60, and 1.33 ppm against Ae. aegypti, Oc. togoi, and Cx. pipiens pallens larvae. This naturally occurring C. obtusa leaves-derived compound merits further study as a potential mosquito larval control agent or lead compound.
References
Jan 1, 1986·Transactions of the Royal Society of Tropical Medicine and Hygiene·J N Minjas, R K Sarda
Nov 1, 1994·Journal of Medical Entomology·M J PerichK E Tredway
May 1, 1997·General Pharmacology·S KoyamaJ Motoyoshiya
Sep 16, 1998·Medical and Veterinary Entomology·R P PenillaM H Rodríguez
Nov 24, 1998·Medical and Veterinary Entomology·F ChandreP Guillet
Jun 13, 2002·Journal of Agricultural and Food Chemistry·Young-Cheol YangHoi-Seon Lee
Dec 11, 2003·Journal of Agricultural and Food Chemistry·Young-Cheol YangHoi-Seon Lee
Mar 17, 2005·Journal of Agricultural and Food Chemistry·Young-Su JangHoi-Seon Lee
Citations
Jul 18, 2014·Parasitology Research·Kalaimaran Francina CeciliaSavarimuthu Ignacimuthu
Jan 8, 2008·Parasitology Research·A Abdul RahumanKannappan Geetha
Apr 9, 2008·Parasitology Research·A BagavanKannappan Geetha
Apr 26, 2008·Parasitology Research·A Abdul RahumanC Kamaraj
Aug 9, 2008·Parasitology Research·A Abdul RahumanGeetha Gopalakrishnan
May 4, 2011·Parasitology Research·Venkatesan Gopiesh KhannaThirunavukkarasu Santhoshkumar
Dec 24, 2015·Journal of Physiological Anthropology·Harumi IkeiYoshifumi Miyazaki
Sep 7, 2007·Bioresource Technology·Sen-Sung ChengShang-Tzen Chang
Jun 6, 2016·Neurotoxicology·Nicholas R LarsonJeffrey R Bloomquist
Feb 19, 2015·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Yaping LiangMingshan Ji
May 10, 2020·Environmental Science and Pollution Research International·Dinesh KumarVeena Agrawal
Dec 11, 2019·Journal of Economic Entomology·S O OladipupoA G Appel
Oct 18, 2007·Journal of the American Mosquito Control Association·Helen SpaffordPhil Weinstein
Oct 23, 2013·Journal of Agricultural and Food Chemistry·Min-Gi KimHoi-Seon Lee