Phenanthrene and pyrene disturbed the growth of Microcystis aeruginosa as co-cultured with Chlorella pyrenoidosa

Wang, Xiucui; Zhu, Xuezhu; Chen, Xuemei; Lv, Baitao; Wang, Xue; Wang, Danqin

doi:10.1007/s11356-020-10979-7

Cited by 6 publications

(2 citation statements)

References 39 publications

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“…Several authors have reported negative effects of heavy metals and PAHs at different biological levels in the marine environment, but these studies have mainly assessed the toxic effects of individual pollutants [ 14 , 15 , 16 , 17 ]. Nonetheless, the synergistic effects of heavy metals and PAHs have been recently documented [ 18 , 19 , 20 ], which is extremely worrying since both pollutants are frequently co-occurring in environmental matrices worldwide.…”

Section: Introductionmentioning

confidence: 99%

“…The enrichment of coastal waters with chemical mixtures could increase, for example, the individual toxicity of heavy metals, and affect not only single species but also the diversity and structure of marine communities through cascading trophic consequences (bottom-up and top-down effects). However, it is known that the effects of pollutants are species- and even population-specific [ 16 , 17 , 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

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Negative Consequences on the Growth, Morphometry, and Community Structure of the Kelp Macrocystis pyrifera (Phaeophyceae, Ochrophyta) by a Short Pollution Pulse of Heavy Metals and PAHs

Jara-Yáñez

Meynard

Acosta

et al. 2021

Toxics

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The study of pollution effects in the marine environment has become important in recent decades, and the exposure to simultaneous pollutants has become especially relevant. Indeed, the study of key organisms, such as ecosystem engineers, can show a broader view of the effects of pollutants. In this context, we evaluate in situ the effects of a short (7-day) pollution pulse of combined solutions of heavy metals and polycyclic aromatic hydrocarbons (PAHs) (Cu + PAHs, Cd + PAHs, Cu + Cd, and Cu + Cd + PAHs) on the development and morphological features of Macrocystis pyrifera sporophytes over a period of 90 days. Additionally, we determined the effects on the community structure associated with this kelp. This study evidenced a smaller number of blades and a decreased size of blades and holdfasts, as well as the death of individuals exposed to a secondary mix of metals (Cu + Cd) and a tertiary mix of pollutants (Cu + Cd + PAHs). Regarding the effects on the accompanying fauna, low richness and diversity were registered. M. pyrifera grazers, according to the mixture of pollutants, were either absent or diminished. These results show that the pulse of contamination in the early stages of M. pyrifera negatively affects its development and morphometry, as well as its role as an ecosystem engineer, due to a negative alteration in the species composition.

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