Diversity of purple nonsulfur bacteria in shrimp ponds with varying mercury levels

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Mukkata K., Kantachote D., Wittayaweerasak B., Techkarnjanaruk S., Boonapatcharoen N.

ผู้เผยแพร่: Elsevier

ปีที่เผยแพร่ (ค.ศ.): 2016

วารสาร: Saudi Journal of Biological Sciences (1319-562X)

Volume number: 23

Issue number: 4

หน้าแรก: 478

หน้าสุดท้าย: 487

จำนวนหน้า: 10

นอก: 1319-562X

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930607024&doi=10.1016%2fj.sjbs.2015.05.014&partnerID=40&md5=435632d0945206a300aef1cc760041f8

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

This research aimed to study the diversity of purple nonsulfur bacteria (PNSB) and to investigate the effect of Hg concentrations in shrimp ponds on PNSB diversity. Amplification of the pufM gene was detected in 13 and 10 samples of water and sediment collected from 16 shrimp ponds in Southern Thailand. In addition to PNSB, other anoxygenic phototrophic bacteria (APB) were also observed; purple sulfur bacteria (PSB) and aerobic anoxygenic phototrophic bacteria (AAPB) although most of them could not be identified. Among identified groups; AAPB, PSB and PNSB in the samples of water and sediment were 25.71, 11.43 and 8.57%; and 27.78, 11.11 and 22.22%, respectively. In both sample types, Roseobacter denitrificans (AAPB) was the most dominant species followed by Halorhodospira halophila (PSB). In addition two genera, observed most frequently in the sediment samples were a group of PNSB (Rhodovulum kholense, Rhodospirillum centenum and Rhodobium marinum). The UPGMA dendrograms showed 7 and 6 clustered groups in the water and sediment samples, respectively. There was no relationship between the clustered groups and the total Hg (HgT) concentrations in the water and sediment samples used (<0.002–0.03 μg/L and 35.40–391.60 μg/kg dry weight) for studying the biodiversity. It can be concluded that there was no effect of the various Hg levels on the diversity of detected APB species; particularly the PNSB in the shrimp ponds. © 2015 The Authors

คำสำคัญ

Anoxygenic phototrophic bacteria, pufM gene, Purple bacteria, Shrimp ponds