@Article{phyton.2023.026954,
AUTHOR = {Crisanto Velázquez-Becerra, Gu Yen Ambriz-Ortiz, Rafael Torres-Martínez, Mauro Manuel Martínez-Pacheco},
TITLE = {Repellent and Insecticidal Activity of Naphthoquinones from the Heartwood of <i>Tectona grandis</i> on <i>Incisitermes marginipennis</i> (Latreille)},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {92},
YEAR = {2023},
NUMBER = {7},
PAGES = {2165--2181},
URL = {http://www.techscience.com/phyton/v92n7/52877},
ISSN = {1851-5657},
ABSTRACT = {Wood is a lignocellulosic material that, because of its organic nature, is a source of nutrients for bacteria, fungi,
and insects. <i>Incisitermes marginipennis</i> (Latreille) is an interesting dry wood-boring termite. Because it is an extremely destructive pest, difficult to control due to its cryptic lifestyle, and for its role in the biogeochemical cycle of
carbon and other elements; it is a fundamental organism. The use of less toxic and eco-friendly substances is
important for protecting domestic, cultural, and historical heritage made of wood or lignocellulosic materials.
The aim of this study was to evaluate the biological activity of various naphthoquinones extracted from the heartwood of <i>T. grandis</i> on <i>I. marginipennis</i>. First, heartwood flour was used for Soxhlet-type extractions to isolate and
characterize the heartwood compounds by thin-layer chromatography. To identify the heartwood compounds,
nuclear magnetic resonance and gas chromatography coupled to a mass spectrometer were used. The information
obtained was supported using the Interactive Spectroscopy software. The identified heartwood compounds were
lapachol, tectoquinone, deoxylapachol, dehydro-α-lapachone, tectol and tecomaquinone-I. Using nymphal termites of <i>I. marginipennis</i> as a biological model, the isolated and identified molecules were under three different
tests (repellent, insecticide and protective) and their biological activity was individually evaluated. The results
showed that the molecules obtained have a repellent-protective effect against <i>I. marginipennis</i>, although not in
all cases, these molecules have high percentages of mortality and decreased the weight loss of the treated material
exposed to <i>I. marginipennis</i>.},
DOI = {10.32604/phyton.2023.026954}
}