Community composition and correlations between bacteria and algae within epiphytic biofilms on submerged macrophytes in a plateau lake, southwest China

2020 ◽  
Vol 727 ◽  
pp. 138398 ◽  
Author(s):  
Pinhua Xia ◽  
Dingbo Yan ◽  
Rongguo Sun ◽  
Xu Song ◽  
Tao Lin ◽  
...  
Keyword(s):  
Community Composition ◽  
Southwest China ◽  
Submerged Macrophytes ◽  
Plateau Lake

Hydroclimatic influence on the salinity and water volume of a plateau lake in southwest China

2019 ◽  
Vol 659 ◽  
pp. 746-755 ◽  
Author(s):  
Xuekai Chen ◽  
Xiaobo Liu ◽  
Wenqi Peng ◽  
Fei Dong ◽  
Quchang Chen ◽  
...  
Keyword(s):  
Southwest China ◽  
Water Volume ◽  
Plateau Lake

The relative importance of natural and anthropogenic effects on community composition of aquatic macrophytes in Mediterranean ponds

2011 ◽  
Vol 62 (2) ◽  
pp. 101 ◽  
Author(s):  
Rocío del Pozo ◽  
Camino Fernández-Aláez ◽  
Margarita Fernández-Aláez
Keyword(s):  
Community Composition ◽  
Submerged Macrophytes ◽  
Anthropogenic Impacts ◽  
Natural Habitat ◽  
Ecological Status ◽  
Variance Partitioning ◽  
Anthropogenic Effects ◽  
Relative Importance ◽  
Study Support ◽  
Variation Explained

To detect when changes in response to stressors are occurring, biomonitoring programs require an understanding of shifts in biota that occur in response to anthropogenic and natural effects. Aquatic plants are expected to reflect the environmental conditions of ponds and, according to the European Water Framework Directive, macrophytes should be considered in ecological status assessments of inland surface waters. We assessed the relative importance of natural and anthropogenic impacts on submerged, emergent and floating-leaved macrophytes in 44 ponds in Duero river basin (North Iberian Plateau). Constrained canonical ordinations included 15 taxa of submerged macrophytes and 24 species of emergent and floating-leaved macrophytes. Although the proportion of variation explained by all selected variables was relatively low (37%), we found that submerged community composition reflected the influence of natural (habitat and biotic variables) and anthropogenic effects. However, emergent and floating-leaved macrophytes were not influenced by biotic variables. Variance partitioning showed that degradation category was the best predictor of both submerged macrophytes and emergent and floating-leaved macrophyte composition. However, submerged macrophytes were more affected by chemical variables, whereas emergent and floating-leaved macrophyte composition was best explained by land-use variables. The results of this study support the use of macrophyte communities as effective indicators of the ecological status of Mediterranean ponds.

scholarly journals Abundance and community composition of ammonia oxidizers in rhizosphere sediment of two submerged macrophytes

2016 ◽  
Vol 31 (3) ◽  
pp. 407-419 ◽  
Author(s):  
Rui Huang ◽  
Dayong Zhao ◽  
Jin Zeng ◽  
Juan Luo ◽  
Feng Shen ◽  
...  
Keyword(s):  
Community Composition ◽  
Submerged Macrophytes ◽  
Ammonia Oxidizers ◽  
Rhizosphere Sediment

scholarly journals Nine Novel Phages from a Plateau Lake in Southwest China: Insights into Aeromonas Phage Diversity

Viruses ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 615 ◽  
Author(s):  
Meng Bai ◽  
Ya-Hui Cheng ◽  
Xue-Qin Sun ◽  
Zi-Yi Wang ◽  
Yong-Xia Wang ◽  
...  
Keyword(s):  
Classification Scheme ◽  
Southwest China ◽  
Dna Packaging ◽  
The Other ◽  
Aeromonas Species ◽  
Genome Sequences ◽  
New Classification ◽  
Bacterial Drug Resistance ◽  
Plateau Lake ◽  
Packaging Strategy

Aeromonas species are common pathogens of fish and some of them can opportunistically cause infectious diseases in humans. The overuse of antibiotics has led to the emergence of bacterial drug-resistance. To date, only 51 complete genome sequences of Aeromonas phages are available in GenBank. Here, we report the isolation of nine Aeromonas phages from a plateau lake in China. The protein cluster, dot plot and ANI analyses were performed on all 60 currently sequenced Aeromonas phage genomes and classified into nine clusters and thirteen singletons. Among the nine isolated phages, the DNA-packaging strategy of cluster 2L372D (including 2L372D, 2L372X, 4L372D, 4L372XY) is unknown, while the other five phages use the headful (P22/Sf6) DNA-packaging strategy. Notably, the isolated phages with larger genomes conservatively encode auxiliary metabolism genes, DNA replication and metabolism genes, while in smaller phage genomes, recombination-related genes were conserved. Finally, we propose a new classification scheme for Aeromonas phages.

Vegetation community composition along disturbance gradients of four typical open-pit mines in Yunnan Province of southwest China

2018 ◽  
Vol 30 (4) ◽  
pp. 437-447 ◽  
Author(s):  
Xiao-yun Hou ◽  
Shi-liang Liu ◽  
Fang-yan Cheng ◽  
Yue-qiu Zhang ◽  
Shi-kui Dong ◽  
...  
Keyword(s):  
Community Composition ◽  
Yunnan Province ◽  
Southwest China ◽  
Open Pit ◽  
Vegetation Community ◽  
Open Pit Mines

Effects of submerged macrophytes on the abundance and community composition of ammonia-oxidizing prokaryotes in a eutrophic lake

2013 ◽  
Vol 21 (1) ◽  
pp. 389-398 ◽  
Author(s):  
Da-yong Zhao ◽  
Juan Luo ◽  
Jin Zeng ◽  
Meng Wang ◽  
Wen-ming Yan ◽  
...  
Keyword(s):  
Community Composition ◽  
Submerged Macrophytes ◽  
Eutrophic Lake
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