Immobilization Of Algicidal Bacterium Shewanella Sp. Iri-160 And Its Application To Control Harmful Dinoflagellates

Wang, Yanfei; Coyne, Kathryn J.

doi:10.1016/j.hal.2020.101798

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Immobilization Of Algicidal Bacterium Shewanella Sp. Iri-160 And Its Application To Control Harmful Dinoflagellates

2020
By Wang, Yanfei ; Coyne, Kathryn J.
Source: Harmful Algae, 94, 1-11
Series: PCMHAB Contribution no. 56

[PDF-888.03 KB]

Details You May Also Like

Details:

Journal Title:

Harmful Algae
Personal Author:

Wang, Yanfei ; Coyne, Kathryn J.

Wang, Yanfei ; Coyne, Kathryn J. Less -
NOAA Program & Office:

Sea Grant ; OAR (Oceanic and Atmospheric Research) ; NOS (National Ocean Service)

Sea Grant ; OAR (Oceanic and Atmospheric Research) ; NOS (National Ocean Service) Less -
Sea Grant Program:

DELU (Delaware Sea Grant)
Description:

Shewanella sp. IRI-160 is an algicidal bacterium isolated from Delaware Inland Bays. It secretes water-soluble compounds that inhibit the growth of dinoflagellates. Previous research indicated that this bacterium does not have a negative impact on other algal species. In this research, Shewanella sp. IRI-160 was immobilized to different porous matrices, including agarose, alginate hydrogel, cellulosic sponge, and polyester foam. The retention of Shewanella sp. IRI-160 on or within these matrices was examined at 4 and 25 °C for 12 days. Results indicated that alginate was superior in terms of cell retention, with >99% of Shewanella cells retained in the matrix after 12 days. Shewanella sp. IRI-160 cells were then immobilized within alginate beads to evaluate algicidal effects on harmful dinoflagellates Karlodinium veneficum and Prorocentrum minimum at bacterial concentrations of 106 to 108 cells mL−1. The effects on dinoflagellates were compared to non-harmful cryptophyte Rhodomonas sp., as well as the effects of free-living bacteria on these species. Results indicated that immobilized Shewanella sp. IRI-160 in alginate beads were as effective as the free-living bacteria to control the growth of K. veneficum and P. minimum, while no negative impacts of immobilized Shewanella sp. IRI-160 on the non-harmful control species Rhodomonas sp. were observed. Overall, this study suggests that immobilized Shewanella sp. IRI-160 may be used as an environmentally friendly approach to prevent or mitigate the blooms of harmful dinoflagellates and provides insight and directions for future studies.
Keywords:

[+]

Cyanobacterial Blooms Nutrient Pollution Of Water Rivers Toxic Algae Shewanella sp. IRI-160, Algicidal bacteria, Immobilized bacteria, Dinoflagellates, Algicide, Alginate
Source:

Harmful Algae, 94, 1-11
Series:

PCMHAB Contribution no. 56
DOI:

https://doi.org/10.1016/j.hal.2020.101798
Pubmed ID:

32414500
Document Type:

Journal Article
Funding:

Grant no. NA15NOS4780176 ; Grant no. R/HCE-25

Grant no. NA15NOS4780176 ; Grant no. R/HCE-25 Less -
Place as Subject:

Great Lakes Watershed (North America)
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:ebe976099aa530982f6ef795dd8d08d3be55e16e6ab901cdf17e920d23bfcfee
Download URL:

https://repository.library.noaa.gov/view/noaa/28820/noaa_28820_DS1.pdf
File Type:

No Additional Files

More +

Immobilization Of Algicidal Bacterium Shewanella Sp. Iri-160 And Its Application To Control Harmful Dinoflagellates

Details:

Supporting Files

You May Also Like