Experimental transmission of a novel relapsing fever group Borrelia harbored by Ornithodoros octodontus (Ixodida: Argasidae) in Chile.

Tick-borne relapsing fever spirochetes of genus Borrelia thrive in enzootic cycles involving Ornithodoros spp. (Argasidae) mainly, and rodents. The isolation of these spirochetes usually involves a murine model in which ticks are fed and the spirochetes detected in blood several days later.

Somatic embryogenesis from leaf explants of L.

is an asteraceous plant of industrial, ornamental and medicinal importance; its inflorescences have been used as a pigment source for food coloring, mainly for poultry skin and eggs. Nevertheless, there are few reports on plant regeneration or micropropagation, because unsuccesfull results in the plant's reaction to the growth regulators, developing embryogenesis on . In this study, somatic embryogenesis was induced and plantlets of were regenerated.