DOI: 10.1016/j.marenvres.2019.104871
论文题名: Light alters the responses of two marine diatoms to increased warming
作者: Zeng X. ; Jin P. ; Jiang Y. ; Yang H. ; Zhong J. ; Liang Z. ; Guo Y. ; Li P. ; Huang Q. ; Pan J. ; Lu H. ; Wei Y. ; Zou D. ; Xia J.
刊名: Marine Environmental Research
ISSN: 1411136
出版年: 2020
卷: 154 语种: 英语
英文关键词: Carbonic anhydrase
; Diatoms
; Enzymes
; Global change
; Ocean warming
; Phaeodactylum tricornutum
; Rubisco
; Thalassiosira weissflogii
Scopus关键词: Carbonic anhydrase
; Enzymes
; Physiological models
; Phytoplankton
; Diatoms
; Global change
; Ocean warming
; Phaeodactylum tricornutum
; RuBisCo
; Thalassiosira weissflogii
; Light
; carbonate dehydratase
; chlorophyll a
; ribulosebisphosphate carboxylase
; carbon
; diatom
; enzyme
; global change
; light effect
; photosynthesis
; temperature effect
; warming
; Article
; biomass
; cell density
; climate change
; controlled study
; environmental impact assessment
; environmental temperature
; enzyme activity
; high temperature
; intraspecific variation
; light
; nonhuman
; Phaeodactylum tricornutum
; photosynthesis
; physical chemistry
; physiological process
; temperature measurement
; temperature sensitivity
; Thalassiosira weissflogii
; Bacillariophyta
; Nitzschia alba
; Phaeodactylum tricornutum
; Thalassiosira weissflogii
英文摘要: In this study, we examined the effects of increased temperature (15, 20 and 25 °C) and different light levels (50, 200 μmol photons m−2 s−1) on two widely distributed diatoms, namely Phaeodactylum tricornutum and Thalassiosira weissflogii. Results showed that increasing light level counteracted the negative effects of high temperature on photosynthesis in both species, suggesting an antagonistic interaction between light and temperature. Contrary to the above results, light limitation diminished the temperature-sensitivity of carbonic anhydrase activity in two diatoms. We also observed species-specific responses of biomass, where increased temperature significantly decreased the biomass of P. tricornutum at both low and high light levels but showed no effects on T. weissflogii. Our study demonstrated that light can alter the physiological responses of diatoms to temperature but also revealed interspecific variations. We predict that in the future ocean with shallower upper mixed layer, T. weissflogii may be more competitive than P. tricornutum. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159663
Appears in Collections: 气候变化与战略
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作者单位: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China; School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
Recommended Citation:
Zeng X.,Jin P.,Jiang Y.,et al. Light alters the responses of two marine diatoms to increased warming[J]. Marine Environmental Research,2020-01-01,154