470
Views
11
CrossRef citations to date
0
Altmetric
Articles

Poly 3-hydroxybutyrate-co-3-hydroxyhexanoate films can be degraded by the deep-sea microbes at high pressure and low temperature conditions

, , , , &
Pages 248-257 | Received 26 Dec 2018, Accepted 01 Feb 2019, Published online: 01 Mar 2019
 

ABSTRACT

We have isolated several poly 3-hydroxybutyrate-co-3-hydroxyhexanoate (PHBH) degradable bacteria from the deep-sea sediment samples. The isolated microbes were involved into α-, γ- Proteobacteria group and the phylum Firmicutes, which were commonly diverged in the ocean environment. Four bacterial strains, Bacillus sp. MH10, Alteromonas sp. MH53, Psychrobacillus sp. PL87 and Rheinheimera sp. PL100, were selected as more active strains for the PHBH bio-degradation at high pressure and cold temperature conditions, and showed that those strains were piezotolerant up to 20–30 MPa. Our findings indicated that the PHBH could be well degraded not only in the ocean environment, but also at the deep-sea bottom, by means of those marine microorganisms.

Acknowledgements

We are very grateful to the science groups of the KM16-04 cruises, the deep-sea remote operated vehicle Hyper Dolphin and MS Kaimei’s ROV operation teams, and the crews of the MS Kaimei for helping us to collect the deep-sea sediment samples. We also thank Dr. Akihiro Tame (Marine Work Japan Co.) to help the electron microscopic observations.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was partially supported by a Grant-in-Aid for Exploratory Research [grant number 25450121] provided by the Ministry of Education, Culture, Sports, Science and Technology of Japan (CK).

Log in via your institution

Log in to Taylor & Francis Online

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 1,965.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.