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Mushtaq S, Abbas MA, Nasir H, Mahmood A, Iqbal M, Janjua HA, Malik Q, Ahmad NM. Amphiphilic copolymers of dimethyl aminoethyl methacrylate and methyl methacrylate with controlled hydrophilicity for antialgal activity. J Appl Polym Sci 2022. [DOI: 10.1002/app.51578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shehla Mushtaq
- Department of Chemistry, School of Natural Sciences National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Muhammad Asad Abbas
- Polymer Research Lab, School of Chemical and Materials Engineering (SCME) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Habib Nasir
- Department of Chemistry, School of Natural Sciences National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Azhar Mahmood
- Department of Chemistry, School of Natural Sciences National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Mudassir Iqbal
- Department of Chemistry, School of Natural Sciences National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Hussnain A. Janjua
- Department of Industrial Biotechnology, Atta‐Ur‐Rahman School of Applied Biosciences (ASAB) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Qamar Malik
- ABBOT Energy and Environment Inc., Alastair Ross Technology Center Calgary Alberta Canada
| | - Nasir M. Ahmad
- Polymer Research Lab, School of Chemical and Materials Engineering (SCME) National University of Sciences and Technology (NUST) Islamabad Pakistan
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Li J, Wang T, Yu S, Bai J, Qin S. Community characteristics and ecological roles of bacterial biofilms associated with various algal settlements on coastal reefs. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 250:109459. [PMID: 31479939 DOI: 10.1016/j.jenvman.2019.109459] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 07/20/2019] [Accepted: 08/21/2019] [Indexed: 06/10/2023]
Abstract
Bacterial biofilms, which are a group of bacteria attaching to and ultimately forming communities on reefs, perform essential ecological functions in coastal ecosystems. Particularly, they may attract or repulse the settling down of opportunistic algae. However, this phenomenon and the interaction mechanism are not fully understood. This study investigated reefs from the Changdao coastal zone to determine the structures and functions of bacterial biofilms symbiosing with various algae using high-throughput sequencing analysis. The Shannon diversity index of microbiota with algal symbiosis reached 5.34, which was higher than that of microbiota wherein algae were absent (4.80). The beta diversity results for 11 samples revealed that there existed a separation between bacterial communities on reefs with and without attached algae, while communities with similar algae clustered together. The taxa mostly associated with algae-symbiotic microbiota are the Actinobacteria phylum, and the Flavobacteriia and Gammaproteobacteria classes. The Cyanobacteria phylum was not associated with algae-symbiotic microbiota. As revealed by functional analysis, the bacteria mostly involved in the metabolism of sulfur were represented by brown and red algae in the biofilm symbiosis. Bacteria related to the metabolism of certain trace elements were observed only in specific groups. Moreover, phototrophy-related bacteria were less abundant in samples coexisting with algae. This study established the link between bacterial biofilms and algal settlements on costal reefs, and revealed the possible holobiont relationship between them. This may provide new technical directions toward realizing algal cultivation and management during the construction of artificial reef ecosystems.
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Affiliation(s)
- Jialin Li
- Key Lab of Coastal Biology and Biological Resource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264000, Shandong, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Ting Wang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Shuxian Yu
- Key Lab of Coastal Biology and Biological Resource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264000, Shandong, China
| | - Jie Bai
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Song Qin
- Key Lab of Coastal Biology and Biological Resource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264000, Shandong, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China.
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