升温对丛生盔形珊瑚两种形态型代谢和共生藻光合生理的影响

doi:10.11978/2021078

热带海洋学报 ›› 2022, Vol. 41 ›› Issue (5): 133-140.doi: 10.11978/2021078CSTR: 32234.14.2021078

升温对丛生盔形珊瑚两种形态型代谢和共生藻光合生理的影响

何茜¹^,²^,³^,⁴(), 俞晓磊¹^,²^,³^,⁴, 梁宇娴¹^,²^,³, 张喆¹^,²^,³^,⁴, 黄晖¹^,²^,³, 周伟华¹^,²^,³(), 袁翔城¹^,²^,³()

1.中国科学院热带海洋生物资源与生态重点实验室, 广东省应用海洋生物学重点实验室, 中国科学院南海海洋研究所, 广东广州 510301
2.三亚海洋科学综合(联合)实验室; 海南省热带海洋生物技术重点实验室, 三亚中科海洋研究院, 海南三亚 572000
3.海南三亚海洋生态系统国家野外科学观测研究站; 中国科学院海南热带海洋生物实验站, 海南三亚572000
4.中国科学院大学, 北京 100049

收稿日期:2021-06-22 修回日期:2021-08-26 出版日期:2022-09-10 发布日期:2021-08-27
通讯作者: 周伟华,袁翔城
作者简介:何茜(1997—), 女, 广东省茂名市人, 硕士研究生, 从事珊瑚生物学和珊瑚礁生态学研究。email: heqian19@mails.ucas.ac.cn
基金资助:
国家自然科学基金(41976120);海南省重点研发计划(ZDYF2020200);三亚崖州湾科技局科研项目(SKJC-2020-01-010);广东省科技计划(2020B1212060058)

Effects of warming on the metabolism and photosynthetic physiology of the symbiotic algae of two morphological types of Galaxea fascicularis

HE Qian¹^,²^,³^,⁴(), YU Xiaolei¹^,²^,³^,⁴, LIANG Yuxian¹^,²^,³, ZHANG Zhe¹^,²^,³^,⁴, HUANG Hui¹^,²^,³, ZHOU Weihua¹^,²^,³(), YUAN Xiangcheng¹^,²^,³()

1. CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
2. CAS-HKUST Sanya Joint Laboratory of Marine Science Research; Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya Institute of Oceanology, South China Sea Institute of Oceanography, Sanya 572000, China
3. Sanya National Marine Ecosystem Research Station; Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya 572000, China
4. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2021-06-22 Revised:2021-08-26 Online:2022-09-10 Published:2021-08-27
Contact: ZHOU Weihua, YUAN Xiangcheng
Supported by:
National Natural Science Foundation of China(41976120);Key Research and Development Project of Hainan Province, China(ZDYF2020200);Research Project of Sanya Yazhou-Bay SCI-TECH City Administration(SKJC-2020-01-010);Science and Technology Planning Project of Guangdong Province, China(2020B1212060058)

摘要/Abstract

摘要：

文章研究了温度升高对一种造礁石珊瑚——丛生盔形珊瑚(Galaxea fascicularis)的两种形态型(H和S型)代谢和共生藻光合生理的影响。研究显示H型和S型对升温的生理响应差异明显: 在虫黄藻水平上, H型丢失了大量的虫黄藻, 减轻了共生体呼吸代谢的负荷; S型中虫黄藻数目尚可维持共生体呼吸代谢的需求, 同时提高叶绿素b含量增强光的吸收。在宿主水平上, H型充分利用虫黄藻输送的营养物质, 并通过异养摄食补偿能量消耗; S型宿主所储存的营养物质可以协助共生体适应热环境。结果表明, 丛生盔形珊瑚两种形态型通过不同的能量利用方式适应环境的变化, H型倾向于维持共生体的代谢平衡, 而S型倾向于提高共生藻的能量分配。

关键词: 丛生盔形珊瑚, 共生藻, 升温, 形态型, 代谢, 光合生理

Abstract:

The effects of warming on the metabolism and photosynthetic physiology of symibiodiniaceae of two morphological types (H and S) of a reef-building coral, Galaxea fascicularis, were studied. The results showed that the physiological responses of H-type and S-type to warming were clearly different. At the symibiodiniaceae level, H-type lost a large number of symibiodiniaceae, and reduced the burden of respiratory metabolism of symbionts. In S-type, the number of zooxanthellae could still maintain the needs of symbionts for respiratory metabolism, while increasing the content of chlorophyll b to enhance light absorption. At the host level, the H-type made full use of nutrients delivered by zooxanthellae and compensated for energy consumption through heterotrophic feeding. The nutrients stored by the S-type host could assist the symbionts to adapt to the thermal environment. Galaxea fascicularis adapted itself to environmental changes through different energy utilization modes, i.e., H-type tended to maintain the metabolic balance of the symbiont, while S-type intended to improve the energy distribution of symbiotic algae.

Key words: Galaxea fascicularis, symbiotic algae, warming, morphological types, metabolism, photosynthetic physiology

中图分类号:

P735.542

何茜, 俞晓磊, 梁宇娴, 张喆, 黄晖, 周伟华, 袁翔城. 升温对丛生盔形珊瑚两种形态型代谢和共生藻光合生理的影响[J]. 热带海洋学报, 2022, 41(5): 133-140.

HE Qian, YU Xiaolei, LIANG Yuxian, ZHANG Zhe, HUANG Hui, ZHOU Weihua, YUAN Xiangcheng. Effects of warming on the metabolism and photosynthetic physiology of the symbiotic algae of two morphological types of Galaxea fascicularis[J]. Journal of Tropical Oceanography, 2022, 41(5): 133-140.

图/表 4

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升温对丛生盔形珊瑚两种形态型代谢和共生藻光合生理的影响

Effects of warming on the metabolism and photosynthetic physiology of the symbiotic algae of two morphological types of Galaxea fascicularis

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