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NTIS 바로가기Ocean and polar research, v.38 no.1, 2016년, pp.81 - 88
박진우 (한국해양과학기술원 생태기반연구센터) , 권준영 (선문대학교 건강보건대학 수산생명의학과) , 진예화 (선문대학교 건강보건대학 수산생명의학과) , 오승용 (한국해양과학기술원 통영해상과학기지)
In many fish species, including Nile tilapia (Oreochromis niloticus), gonadal development occurs at the expense of stored energy and nutrients. Therefore, reproductive systems are inhibited by limited food supply. It has been well established that reproductive function is highly sensitive to both me...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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어류를 포함한 척추동물의 번식은 어떻게 조절되는가? | 어류를 포함한 척추동물의 번식은 환경변화(온도, 광주기 등)에 반응한 각 어체 뇌의 시상하부가 GonadotropinReleasing Hormone(GnRH)를 분비함으로써 조절된다. 시상하부(hypothalamus)에서 분비된 GnRH는 뇌하수체 전엽(anterior pituitary)에 위치한 GnRH 수용체를 활성화시키고, 두 종류의 서로 다른 gonadotropin(GTH)인 Follicle Stimulating Hormone(FSH)과 Luteinizing Hormone(LH) 의 분비를 조절함으로써 생식소 발달 및 성숙에 관여한다. | |
성 성숙 과정은 무엇인가? | 시상하부(hypothalamus)에서 분비된 GnRH는 뇌하수체 전엽(anterior pituitary)에 위치한 GnRH 수용체를 활성화시키고, 두 종류의 서로 다른 gonadotropin(GTH)인 Follicle Stimulating Hormone(FSH)과 Luteinizing Hormone(LH) 의 분비를 조절함으로써 생식소 발달 및 성숙에 관여한다. 이러한 성 성숙 과정은 체성장(somatic growth)에 이용되던 에너지가 생식소 발달 및 번식 활동을 위해 소비 되는 생리학적 과정으로(Taranger et al. 2010) 상당한 에너지가 요구된다. 따라서 풍부한 먹이 공급은 성 성숙을 유도할 수 있는 반면, 먹이 공급이 원활하지 않은 경우 성 성숙을 방해할 수 있다(Schneider 2004). | |
어류를 포함한 척추동물에서 분비되는 GnRH는 어떻게 생식소 발달 및 성숙에 관여하는가? | 어류를 포함한 척추동물의 번식은 환경변화(온도, 광주기 등)에 반응한 각 어체 뇌의 시상하부가 GonadotropinReleasing Hormone(GnRH)를 분비함으로써 조절된다. 시상하부(hypothalamus)에서 분비된 GnRH는 뇌하수체 전엽(anterior pituitary)에 위치한 GnRH 수용체를 활성화시키고, 두 종류의 서로 다른 gonadotropin(GTH)인 Follicle Stimulating Hormone(FSH)과 Luteinizing Hormone(LH) 의 분비를 조절함으로써 생식소 발달 및 성숙에 관여한다. 이러한 성 성숙 과정은 체성장(somatic growth)에 이용되던 에너지가 생식소 발달 및 번식 활동을 위해 소비 되는 생리학적 과정으로(Taranger et al. |
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