Биолюминесценция - это естественная реакция, которая встречается у Vibrio harveyi и V. fischeri. Зачем она нужна первой бактерии, я не в курсе, а у Vf это целый симбиотический механизм проживания на кальмаре. Вот кусочек статьи, чтобы понятно было: The luminous bacterium Vibrio fischeri lives in a cooperative association with the Hawaiian bobtail squid, Euprymna scolopes. The squid has developed a specialized light-emitting organ to house the bacteria within the animal's mantle cavity. When juvenile E. scolopes squid hatch, they are symbiont free and must acquire V. fischeri from the surrounding seawater. The bacteria enter the nascent organ through six pores which connect to ducts that, in turn, lead to specialized, epithelium-lined crypts. Once inside these crypts, the bacteria divide rapidly and fill the light organ with approximately 5 × 10 5 cells. During this colonization process, after a critical cell density is reached, the bacteria induce the lux operon and begin to luminesce. The animal can control the amount of light emitted to the environment and uses this luminescence during its nocturnal activities, probably as a means to disguise itself from predators. At dawn, the host expels approximately 95% of the bacteria; the remaining symbionts multiply over the next 12 h, thereby providing the squid again with a source of luminescence by nightfall.
Наш холерный вибрион не светится, но мы делаем transcriptional fusions c lux operon'ом, который у нас встроен в плазмиду. Надеюсь, ты поняла, что я сказала, потому что сама я как-то не очень умею выражаться научным языком. =))
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The luminous bacterium Vibrio fischeri lives in a cooperative association with the Hawaiian bobtail squid, Euprymna scolopes. The squid has developed a specialized light-emitting organ to house the bacteria within the animal's mantle cavity. When juvenile E. scolopes squid hatch, they are symbiont free and must acquire V. fischeri from the surrounding seawater. The bacteria enter the nascent organ through six pores which connect to ducts that, in turn, lead to specialized, epithelium-lined crypts. Once inside these crypts, the bacteria divide rapidly and fill the light organ with approximately 5 × 10 5 cells. During this colonization process, after a critical cell density is reached, the bacteria induce the lux operon and begin to luminesce. The animal can control the amount of light emitted to the environment and uses this luminescence during its nocturnal activities, probably as a means to disguise itself from predators. At dawn, the host expels approximately 95% of the bacteria; the remaining symbionts multiply over the next 12 h, thereby providing the squid again with a source of luminescence by nightfall.
Наш холерный вибрион не светится, но мы делаем transcriptional fusions c lux operon'ом, который у нас встроен в плазмиду. Надеюсь, ты поняла, что я сказала, потому что сама я как-то не очень умею выражаться научным языком. =))