Agrobacterium-Mediated Transformation In The Green Alga Haematococcus Pluvialis (Chlorophyceae, Volvocales)

Kathiresan, S. and Chandrashekar, A. and Ravishankar, G. A. and Sarada, R. (2009) Agrobacterium-Mediated Transformation In The Green Alga Haematococcus Pluvialis (Chlorophyceae, Volvocales). Journal of Phycology, 45. pp. 642-649.

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Abstract

The first successful Agrobacterium-mediated transformation of the green alga Haematococcus pluvialis Flot. using the binary vectors hosting the genes coding for GUS (b-glucuronidase), GFP (green fluorescent protein), and hpt (hygromycin phosphotransferase) is reported here. Colonies resistant to hygromycin at 10 mg Æ L)1 expressed b-glucuronidase. The greenish yellow fluorescence of GFP was observed when the hygromycin-resistant cells were viewed with a fluorescent microscope. PCR was used to successfully amplify fragments of the hpt (407 bp) and GUS (515 bp) genes from transformed cells, while Southern blots indicated the integration of the hygromycin gene into the genome of H. pluvialis. SEM indicated that the cell wall of H. pluvialis was altered on infection with Agrobacterium. The transformation achieved here by Agrobacterium does not need treatment with acetosyringone or the wounding of cells. A robust transformation method for this alga would pave the way for manipulation of many important pathways relevant to the food, pharmaceutical, and nutraceutical industries.

Item Type:	Article
Uncontrolled Keywords:	Agrobacterium tumefaciens; genetic transformation; green fluorescent protein; Haematococcus pluvialis; hygromycin
Subjects:	500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 01 Algae
Divisions:	Plant Cell Biotechnology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	18 Jun 2009 09:43
Last Modified:	28 Dec 2011 09:52
URI:	http://ir.cftri.res.in/id/eprint/6335

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