Publications

olfactory discrimination byheteropsylla cubana (homoptera: psyllidae) between susceptible and resistant species ofleucaena (leguminosae).	in the field, adult psyllids,heteropsylla cubana crawford, oriented significantly more towards the caged seedlings of susceptibleleucaena leucocephala (lam.) de wit than to those of the resistant tree species,leucaena collinsii britton & rose, or the nonhostamaranthus spinosus l. in a dual-choice bioassay using a still-air olfactometer, the females demonstrated a strong positive response to the hexane extract ofl. leucocephala leaves at 1×10(-3) g equivalents (g eq) of leaf material. the females ...	1993	24248513
genome reduction and co-evolution between the primary and secondary bacterial symbionts of psyllids.	genome reduction in obligately intracellular bacteria is one of the most well-established patterns in the field of molecular evolution. in the extreme, many sap-feeding insects harbor nutritional symbionts with genomes that are so reduced that it is not clear how they perform basic cellular functions. for example, the primary symbiont of psyllids (carsonella) maintains one of the smallest and most at-rich bacterial genomes ever identified and has surprisingly lost many genes that are thought to ...	2012	22821013