کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5905180 | 1159856 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamics of bacterial community structure on intertidal sandflat inhabited by the ghost shrimp Nihonotrypaea harmandi (Decapoda: Axiidea: Callianassidae) in Tomioka Bay, Amakusa, Japan
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کلمات کلیدی
TOCNMDSANOSIMNon-metric multi-dimensional scalingRITSrRNAOTU - OTRibosomal RNA - RNA RibosomalARISA - آریساautomated ribosomal intergenic spacer analysis - تجزیه و تحلیل اسپارر بین رگولارهای اتوماتیک ریبوزومیBacterial community structure - ساختار جامعه باکتریSandflat - ساندویچGhost shrimp - میگو شبحOperational taxonomic units - واحدهای تاکسونومی عملیاتیTotal organic carbon - کل کربن آلی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
ژنتیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dynamics of bacterial community structure on intertidal sandflat inhabited by the ghost shrimp Nihonotrypaea harmandi (Decapoda: Axiidea: Callianassidae) in Tomioka Bay, Amakusa, Japan Dynamics of bacterial community structure on intertidal sandflat inhabited by the ghost shrimp Nihonotrypaea harmandi (Decapoda: Axiidea: Callianassidae) in Tomioka Bay, Amakusa, Japan](/preview/png/5905180.png)
چکیده انگلیسی
Callianassid (ghost) shrimp has been claimed as an ecosystem engineer, as it is one of the most powerful bioturbating macrobenthos in intertidal sandflats. However, our knowledge about the relationship between areal distribution of bottom-dwelling ghost shrimps and dynamics of sediment microbial community structure remains obscured. We used automated ribosomal intergenic spacer analysis (ARISA) to reveal the bacterial community dynamics in the sediment of intertidal sandflat of Tomioka Bay, Kyushu, Japan, which is predominantly inhabited by a burrow-dwelling callianassid shrimp Nihonotrypaea harmandi. We found that the bacterial community structures of high and middle shrimp population areas were significantly differentiated from those of low population area (ANOSIM, R = 0.10-0.18, p < 0.01), while the former two areas were statistically indistinguishable (ANOSIM, R = â 0.015, p > 0.1). These results illustrated the potential importance of shrimp population density as a key factor in shaping the bacterial community structure and interpreting their dynamics in the sandflat. Furthermore, greater similarity between burrow and non-burrow communities was found in samples taken in autumn through winter than in those in summer (one-way ANOVA, p < 0.05), whereas the phylotype richness was not simply differentiated by seasons. These results suggest not only that environmental variables including water temperature and salinity of the water column overlying the sandflat could exert notable impacts on the sediment bacterial community dynamics, but that the bio-irrigation and mixing by the ghost shrimp in permeable sandflat would strongly homogenize sediment particles, enhance solute transport surrounding the burrow and ambient subsurface substrate, and therefore reduce spatial differentiation of the bacterial community structure between the two sites. A comparison between present and previous studies of axiidean (former taxonomic group name, thalassinidean) ghost shrimps provides us with a comprehensive understanding of the shrimps' impacts on bacterial community dynamics, highlighting the importance of sediment permeability, a characteristic determined by the type of sediment, as a key controlling factor to shape spatial heterogeneity of bacterial community structure around burrow.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gene - Volume 576, Issue 2, Part 1, 1 February 2016, Pages 657-666
Journal: Gene - Volume 576, Issue 2, Part 1, 1 February 2016, Pages 657-666
نویسندگان
Minoru Wada, Tatsuyuki Urakawa, Akio Tamaki,