Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/9822
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The efficacy of selected plant extracts and bioflavonoids in controlling infections of Saprolegnia australis (Saprolegniales; Oomycetes)
Authors: Caruana, Saviour
Yoon, Gil Ha
Freeman, Mark
Mackie, James
Shinn, Andrew
Contact Email: a.p.shinn@stir.ac.uk
Keywords: Antifungal activity
Fungal infection
Fish pathogen
Water mould
Salmonids
Issue Date: 15-Aug-2012
Publisher: Elsevier
Citation: Caruana S, Yoon GH, Freeman M, Mackie J & Shinn A (2012) The efficacy of selected plant extracts and bioflavonoids in controlling infections of Saprolegnia australis (Saprolegniales; Oomycetes), Aquaculture, 358-359, pp. 146-154.
Abstract: Saprolegnia infections can account for the significant loss of salmonid eggs and adults in breeding condition and although there are a number of chemical agents available to control infections in hatcheries, treatment is difficult and there are reservations regarding their efficacy, prompting a search for suitable replacements. Here, the efficacy of 24 crude plant extracts and 3 bioflavonoids on the growth of Saprolegnia australis were assessed using an in vitro agar diffusion method against a set of synthetic chemotherapeutants commonly used within the aquaculture industry. The 12 best extracts inhibiting growth at ≤ 100 ppm, were then added to cultures of S. australis in a GP broth and the daily growth was monitored spectrophotometrically over a 7-day period. All 12 plant extracts reduced growth, however, only Atractylodes macrocephala, Zingiber officinale seed, Chrysanthemum and Yucca were as effective as 10 ppm malachite green in slowing growth. A subsequent trial, where doses of the plant extract were given at 72 and 120 h post-inoculation, found that Rumex obtusifolius, Sophora flavescens, Echinacea and Z. officinale were the most effective compounds impacting growth. The study demonstrates that certain plant extracts impact on the growth dynamics of S. australis but further research is required to assess their performance in vivo.
Type: Journal Article
URI: http://hdl.handle.net/1893/9822
DOI Link: http://dx.doi.org/10.1016/j.aquaculture.2012.06.035
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: University of Stirling
Aquaculture
University of Malaya
James A Mackie Pharmaceuticals
Aquaculture

Files in This Item:
File Description SizeFormat 
Caruana et al 2012 Saprolegnia.pdf702.01 kBAdobe PDFUnder Embargo until 31/12/2999     Request a copy

Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependant on the depositor still being contactable at their original email address.

This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.