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Carbon distribution strategy of Aurelia coerulea polyps in the strobilation process in relation to temperature and food supply

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Journal of Oceanology and Limnology 2018年第6期36卷 2216-2230页

作者： WANG Nan LI Chaolun WANG Yantao FENG Song Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of Sciences Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and Technology Center for Ocean Mega-Science Chinese Academy of Sciences

Mass occurrences of moon jellyfish have been observed in coastal waters. Strobilation directly determines the initial population size of adult jellyfish, but energy distribution during the strobilation process is not well understood. In this study, strobilation was induced in polyp of Aurelia coerulea by elevating temperature. The different stages in the strobilation process, including polyp budding, strobilation and body growth, were investigated at six temperature levels(8, 10, 13, 15, 17 and 19°C) and five food supply levels(0, 30, 60, 100 and 150 μg C/L). The results showed that the duration of strobilation preparation stage(SP) remarkably decreased with increasing temperature. Food level positively af fected the production of buds and ephyrae and the body growth of parent polyps. Of the six temperatures tested, 13°C was optimal for strobilation. At 13°C, strobilation activity was enhanced, and this treatment resulted in the greatest energy distribution, highest ephyrae production and longest duration of strobilation stage(SS). Polyps tended to allocate 6.58%–20.49% carbon to buds with sufficient food supply regardless of temperature. The body growth of parent polyps was highest at lower temperatures and higher food levels. This study is the first to provide information on carbon-based energy distribution strategy in the polyp strobilation process. We concluded that budding reproduction is a lower-risk strategy for A. coerulea polyps to increase populations. Even during strobilation season, polyps prioritize budding, but at the optimal strobilation temperature, polyps utilize a portion of the energy stored for budding to release ephyrae. The body carbon content of parent polyps may be considered as strategic energy reserves, which could help to support budding activities and strobilation during harsh conditions.

关键词： Aurelia coerulea temperature food supply carbon distribution strategy strobilation

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Effects of temperature and salinity on the asexual reproduction of Aurelia coerulea polyps

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Journal of Oceanology and Limnology 2020年第1期38卷 133-142页

作者： XING Yongze LIU Qian ZHANG Mei ZHEN Yu MI Tiezhu YU Zhigang Key Laboratory of Marine Environment and Ecology Ministry of EducationOcean University of ChinaQingdao 266100China Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China College of Marine Life Science Ocean University of ChinaQingdao 266003China Key Laboratory of Marine Chemical Theory and Technology Ministry of EducationOcean University of ChinaQingdao 266100China Guangxi Key Lab of Mangrove Conservation and Utilization Guangxi Mangrove Research CenterGuangxi Sciences AcademyBeihai 536000China

Aurelia coerulea polyp is an important stage in the outbreaks of this *** test the combined effects of salinity and temperature on the survival and asexual reproduction of polyps,we maintained 864 polyps at various salinities(15,25,33,and 40)and temperatures(9,12,15,18,21,and 24℃).Polyps could mostly survive in all treatment combinations except in salinity 15 treatments with low temperatures(9-15℃).Budding occurred at all temperatures(9-24℃),while strobilation only occurred at the low temperatures(9-15℃).The range of 12-15℃was suitable for strobilation and ephyrae *** optimal range of salinity for asexual reproduction was ***(15)or high(40)salinity could significantly reduce the numbers of new buds or ephyrae,and low salinity of 15 retarded and even prevented strobilation at low *** optimal treatment for budding and strobilation was 21℃-salinity 25 and 12℃-salinity 33,*** had less of an impact than temperature on asexual reproduction,except for the polyps in high or low osmotic pressure conditions.

关键词： Aurelia coerulea polyp temperature salinity asexual reproduction

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西番莲提取物对三七炭疽病菌和黑斑病菌的抑制作用

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湖北农业科学 2016年第4期55卷 912-915页

作者：岑春艺黄正学李善登韦继光李良波黄荣韶广西大学农学院南宁530005 广西百色市德保县农业局广西百色533700

研究西番莲(Passiflora coerulea L.)提取物对三七[Panax notoginseng(Burk.)***]黑斑病(Alternaria panax Whetz)、炭疽病(Colletotrichum panacicola Vyedaet Takimoto)菌的抑菌活性,为三七病害生物防治提供参考。采用病原菌生长速率法测定不同浓度新鲜西番莲叶、茎、果提取物对三七黑斑病、炭疽病菌的抑制效果。结果表明,西番莲水和乙醇提取物对供试菌有良好的抑制活性,抑菌活性与浓度呈正相关,对黑斑病抑制作用最明显的是1 g/m L西番莲叶的乙醇提取液,抑制率达40%;对炭疽病菌抑制作用最明显的是0.5 g/m L西番莲叶的水提取液,抑制率达61%。

关键词：西番莲(Passiflora coerulea L.) 提取物黑斑病(Alternaria panax Whetz) 炭疽病(Colletotrichum panacicola Vyedaet Takimoto) 抑菌活性

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藏药A c. M抗石膏样毛癣病药效初探

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现代农业科学 2009年第9期 -页

作者：安再强田淑琴邓孝廷赵阳陈烽烽西南民族大学生命科学与技术学院

石膏样毛癣菌是导致家兔皮肤真菌病的主要病菌之一,它传播迅速,难以治愈,复发率高,给养兔产业造成了巨大的经济损失。本文对藏药A c. M的抗石膏样毛癣病药效进行了初步探索,并与常见的抗真菌中西药的药效进行了对比,结果表明A c. M对于... 详细信息

石膏样毛癣菌是导致家兔皮肤真菌病的主要病菌之一,它传播迅速,难以治愈,复发率高,给养兔产业造成了巨大的经济损失。本文对藏药A c. M的抗石膏样毛癣病药效进行了初步探索,并与常见的抗真菌中西药的药效进行了对比,结果表明A c. M对于石膏样毛癣病有较好的抑制作用。

关键词： Adonis coerulea Maximum(A c. M) 石膏样毛癣菌抗真菌

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