Science, Space and Technology News 2023
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Once a horsehair worm reaches these hosts, it starts growing and manipulates the host’s behavior. The matured horsehair worm finally induces the host to jump into water, often to the host’s ultimate demise, so it can complete its life mission and reproduce.horse hairworms use mantids as definitive hosts. After maturing in the mantids, they manipulate their hosts to enter water bodies where the parasites reproduce.
Previous studies have suggested that horsehair worms hijack their hosts’ biological pathways and increase movement toward light, which leads the hosts to approach water. Scientists believe this is accomplished with molecules that mimic those of the hosts’ central nervous systems, but exactly how these parasites developed this kind of molecular mimicry has remained a mystery.horsehair worm before, during, and after manipulating its mantis host.
Horizontal gene transfer is one of the primary ways that bacteria evolve to resist antibiotics. Mishina believes that as we find more examples of horizontal gene transfer between multicellular organisms, we will gain insight into this phenomenon as well as evolution in general. “The many cases of horizontal gene transfer that we have found in the hairworm can be a good model for study,” Mishina says.
Reference: “Massive horizontal gene transfer and the evolution of nematomorph-driven behavioral manipulation of mantids” by Tappei Mishina, Ming-Chung Chiu, Yasuyuki Hashiguchi, Sayumi Oishi, Atsunari Sasaki, Ryuichi Okada, Hironobu Uchiyama, Takeshi Sasaki, Midori Sakura, Hirohiko Takeshima and Takuya Sato, 19 October 2023,SciTechDaily: Home of the best science and technology news since 1998. Keep up with the latest scitech news via email or social media.
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