Sexual reproductive Strategy and ecological implication of pennate diatom Pseudo-nitzschia pungens

Title
Sexual reproductive Strategy and ecological implication of pennate diatom Pseudo-nitzschia pungens
Author(s)
김진호; 박범수; 김주환; Penelope Ajani; Shauna Murray; Hong Chang Lim; Po Teen Lim; 백승호; 한명수
KIOST Author(s)
Baek, Seung Ho(백승호)
Publication Year
2018-10-12
Abstract
Sexual reproduction allows the maintainence of genetic diversity and play a fundamental role in establishing the genetic structures of population. The mating rates and number of zygotes were gradually decreased from log to death phase. The maximum zygote number was 1,390 cells per mL and maximum mating rate was 7.1% in co-cultivation of healthy parents cells of log phase, but just 9 cells per mL (mating rate: 0.1%) were observed in co-cultivation of death phase. In all co-cultivation, maximum mating rates were observed inner 10 days. Furthermore, in dark and turbulent condition, it could not make the zygote cell, and nutrient enriched condition rather interfered with the sexual events. Our results suggest that P. pungens may have adapted to make the large bloom in coastal areas to increase the sexual reproductive chance.maximum zygote number was 1,390 cells per mL and maximum mating rate was 7.1% in co-cultivation of healthy parents cells of log phase, but just 9 cells per mL (mating rate: 0.1%) were observed in co-cultivation of death phase. In all co-cultivation, maximum mating rates were observed inner 10 days. Furthermore, in dark and turbulent condition, it could not make the zygote cell, and nutrient enriched condition rather interfered with the sexual events. Our results suggest that P. pungens may have adapted to make the large bloom in coastal areas to increase the sexual reproductive chance.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23056
Bibliographic Citation
환경생물학회 학술대회, pp.1, 2018
Publisher
환경생물학회
Type
Conference
Language
English
Publisher
환경생물학회
Related Researcher
Research Interests

Marine Ecology,Marine Environment,HABs,해양생태,해양환경,적조

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