In a study published in the Proceedings of the National Academy of Sciences on Sept. 5, researchers led by Prof. Kang Le from the Beijing Institutes of Life Science of the Chinese Academy of Sciences have provided a deep understanding of the 'sociability' of individual locusts and explained how a pheromone influences locust group formation.
for swarm formation and the outbreak of locust plagues. However, the mechanisms whereby solitary locusts undergo a phase change and exhibit aggregation and collective behavior have not been well understood.
In this study, Kang's team investigated the role of 4VA in locust behavioral plasticity by examining the behavioral changes of solitary locusts in the presence and absence of 4VA. They found that solitary locusts typically required 48–72 hours of crowding to exhibit gregarious behavior. However, exposure to 4VA significantly reduced this transition time to only 24 hours.
To further investigate the mechanisms behind 4VA's regulation of locust behavioral transformation, the researchers developed a multi-individual behavioral assay system to assess social interactions among locust individuals.
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