Journal of Mosquito Research 2024, Vol.14, No.1, 49-60 http://emtoscipublisher.com/index.php/jmr 51 Figure 2 Chemical structures of the main biosurfactants produced byRhodococcus spp. strains (Cappelletti et al., 2020) 1.2 The mutual relationship betweenRhodococcus erythropolis and mosquitoes The mutual relationship between Rhodococcus erythropolis and mosquitoes is a significant aspect of ecological research on Rhodococcus erythropolis (Xiong et al., 2022). This symbiotic relationship usually occurs in the mosquito gut, where some strains of Rhodococcus erythropolis are particularly adapted to survive and reproduce. Here are the main points regarding the relationship betweenRhodococcus erythropolis and mosquitoes: Nutritional Symbiosis: There exists a symbiotic relationship between Rhodococcus erythropolis and mosquitoes, inwhich Rhodococcus erythropolis provides essential nutrients, such as vitamin B and iron, to mosquitoes, while mosquitoes offer a suitable living environment for Rhodococcus erythropolis. This symbiosis helps to sustain the survival and reproduction of mosquitoes. Antibiotic Secretion: Some strains of Rhodococcus erythropolis secrete antibiotics in the mosquito gut, which can inhibit the growth of potential pathogens, thereby protecting mosquitoes from infections. This is an important immune defense mechanism for mosquitoes. Influence on Reproduction: Research has found that certain strains of Rhodococcus erythropolis can affect the reproductive capabilities of mosquitoes. By altering the mosquito's reproductive system or reducing its reproductive success rate, Rhodococcus erythropolis can control the population size of mosquitoes to some extent. 1.3 Mosquito population control mechanisms Rhodococcus erythropolis holds potential as a biological control method for mosquito population control, involving complex ecological mechanisms. The following are the main mechanisms through which Rhodococcus erythropolis affects mosquito population control: Inhibiting Mosquito Larvae Growth: Rhodococcus erythropolis can inhibit the growth of mosquito larvae by secreting antibiotics or competing for nutritional resources. This reduces the survival rate and reproductive success of mosquitoes, thereby controlling the population size. Interfering with Mosquito Reproduction: Rhodococcus erythropolis can impact the reproductive capabilities of mosquitoes, leading to reduced reproductive success rates. This is crucial for controlling the growth of mosquito populations. Weakening Mosquito Disease Transmission Ability: The antibiotic secretion by Rhodococcus erythropolis can reduce the number of potential pathogens inside mosquitoes, decreasing the potential risk of mosquitoes as vectors for disease transmission.
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