Cargando…

Preference of carbon absorption determines the competitive ability of algae along atmospheric CO(2) concentration

Although many studies have focused on the effects of elevated atmospheric CO(2) on algal growth, few of them have demonstrated how CO(2) interacts with carbon absorption capacity to determine the algal competition at the population level. We conducted a pairwise competition experiment of Phormidium...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhou, Qing Shi, Gao, Yang, Hou, Jing Ming, Wang, Tian, Tang, Long
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9274100/
https://www.ncbi.nlm.nih.gov/pubmed/35845373
http://dx.doi.org/10.1002/ece3.9079
_version_ 1784745231348924416
author Zhou, Qing Shi
Gao, Yang
Hou, Jing Ming
Wang, Tian
Tang, Long
author_facet Zhou, Qing Shi
Gao, Yang
Hou, Jing Ming
Wang, Tian
Tang, Long
author_sort Zhou, Qing Shi
collection PubMed
description Although many studies have focused on the effects of elevated atmospheric CO(2) on algal growth, few of them have demonstrated how CO(2) interacts with carbon absorption capacity to determine the algal competition at the population level. We conducted a pairwise competition experiment of Phormidium sp., Scenedesmus quadricauda, Chlorella vulgaris and Synedra ulna. The results showed that when the CO(2) concentration increased from 400 to 760 ppm, the competitiveness of S. quadricauda increased, the competitiveness of Phormidium sp. and C. vulgaris decreased, and the competitiveness of S. ulna was always the lowest. We constructed a model to explore whether interspecific differences in affinity and flux rate for CO(2) and HCO(3) (−) could explain changes in competitiveness between algae species along the gradient of atmospheric CO(2) concentration. Affinity and flux rates are the capture capacity and transport capacity of substrate respectively, and are inversely proportional to each other. The simulation results showed that, when the atmospheric CO(2) concentration was low, species with high affinity for both CO(2) and HCO(3) (−) (HCHH) had the highest competitiveness, followed by the species with high affinity for CO(2) and low affinity for HCO(3) (−) (HCLH), the species with low affinity for CO(2) and high affinity for HCO(3) (−) (LCHH) and the species with low affinity for both CO(2) and HCO(3) (−) (LCLH); when the CO(2) concentration was high, the species were ranked according to the competitive ability: LCHH > LCLH > HCHH > HCLH. Thus, low resource concentration is beneficial to the growth and reproduction of algae with high affinity. With the increase in atmospheric CO(2) concentration, the competitive advantage changed from HCHH species to LCHH species. These results indicate the important species types contributing to water bloom under the background of increasing global atmospheric CO(2), highlighting the importance of carbon absorption characteristics in understanding, predicting and regulating population dynamics and community composition of algae.
format Online
Article
Text
id pubmed-9274100
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-92741002022-07-15 Preference of carbon absorption determines the competitive ability of algae along atmospheric CO(2) concentration Zhou, Qing Shi Gao, Yang Hou, Jing Ming Wang, Tian Tang, Long Ecol Evol Research Articles Although many studies have focused on the effects of elevated atmospheric CO(2) on algal growth, few of them have demonstrated how CO(2) interacts with carbon absorption capacity to determine the algal competition at the population level. We conducted a pairwise competition experiment of Phormidium sp., Scenedesmus quadricauda, Chlorella vulgaris and Synedra ulna. The results showed that when the CO(2) concentration increased from 400 to 760 ppm, the competitiveness of S. quadricauda increased, the competitiveness of Phormidium sp. and C. vulgaris decreased, and the competitiveness of S. ulna was always the lowest. We constructed a model to explore whether interspecific differences in affinity and flux rate for CO(2) and HCO(3) (−) could explain changes in competitiveness between algae species along the gradient of atmospheric CO(2) concentration. Affinity and flux rates are the capture capacity and transport capacity of substrate respectively, and are inversely proportional to each other. The simulation results showed that, when the atmospheric CO(2) concentration was low, species with high affinity for both CO(2) and HCO(3) (−) (HCHH) had the highest competitiveness, followed by the species with high affinity for CO(2) and low affinity for HCO(3) (−) (HCLH), the species with low affinity for CO(2) and high affinity for HCO(3) (−) (LCHH) and the species with low affinity for both CO(2) and HCO(3) (−) (LCLH); when the CO(2) concentration was high, the species were ranked according to the competitive ability: LCHH > LCLH > HCHH > HCLH. Thus, low resource concentration is beneficial to the growth and reproduction of algae with high affinity. With the increase in atmospheric CO(2) concentration, the competitive advantage changed from HCHH species to LCHH species. These results indicate the important species types contributing to water bloom under the background of increasing global atmospheric CO(2), highlighting the importance of carbon absorption characteristics in understanding, predicting and regulating population dynamics and community composition of algae. John Wiley and Sons Inc. 2022-07-11 /pmc/articles/PMC9274100/ /pubmed/35845373 http://dx.doi.org/10.1002/ece3.9079 Text en © 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Zhou, Qing Shi
Gao, Yang
Hou, Jing Ming
Wang, Tian
Tang, Long
Preference of carbon absorption determines the competitive ability of algae along atmospheric CO(2) concentration
title Preference of carbon absorption determines the competitive ability of algae along atmospheric CO(2) concentration
title_full Preference of carbon absorption determines the competitive ability of algae along atmospheric CO(2) concentration
title_fullStr Preference of carbon absorption determines the competitive ability of algae along atmospheric CO(2) concentration
title_full_unstemmed Preference of carbon absorption determines the competitive ability of algae along atmospheric CO(2) concentration
title_short Preference of carbon absorption determines the competitive ability of algae along atmospheric CO(2) concentration
title_sort preference of carbon absorption determines the competitive ability of algae along atmospheric co(2) concentration
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9274100/
https://www.ncbi.nlm.nih.gov/pubmed/35845373
http://dx.doi.org/10.1002/ece3.9079
work_keys_str_mv AT zhouqingshi preferenceofcarbonabsorptiondeterminesthecompetitiveabilityofalgaealongatmosphericco2concentration
AT gaoyang preferenceofcarbonabsorptiondeterminesthecompetitiveabilityofalgaealongatmosphericco2concentration
AT houjingming preferenceofcarbonabsorptiondeterminesthecompetitiveabilityofalgaealongatmosphericco2concentration
AT wangtian preferenceofcarbonabsorptiondeterminesthecompetitiveabilityofalgaealongatmosphericco2concentration
AT tanglong preferenceofcarbonabsorptiondeterminesthecompetitiveabilityofalgaealongatmosphericco2concentration