An Arabidopsis flavonoid transporter is required for anther dehiscence and pollen development
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Thompson, Elinor P., Wilkins, Christopher, Demidchik, Vadim, Davies, Julia M. and Glover, Beverley J. (2010) An Arabidopsis flavonoid transporter is required for anther dehiscence and pollen development. Journal of Experimental Botany, 61 (2). pp. 439-451. ISSN 0022-0957
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Abstract
FLOWER FLAVONOID TRANSPORTER (FFT) encodes a multidrug and toxin efflux family transporter in Arabidopsis thaliana. FFT (AtDTX35) is highly transcribed in floral tissues, the transcript being localized to epidermal guard cells, including those of the anthers, stigma, siliques and nectaries. Mutant analysis demonstrates that the absence of FFT transcript affects flavonoid levels in the plant and that the altered flavonoid metabolism has wide-ranging consequences. Root growth, seed development and germination, and pollen development, release and viability are all affected. Spectrometry of mutant versus wild-type flowers shows altered levels of a glycosylated flavonol
whereas anthocyanin seems unlikely to be the substrate as previously speculated. Thus, as well as adding FFT to the incompletely described flavonoid transport network, it is found that correct reproductive development in Arabidopsis is perturbed when this particular transporter is missing.
| Item Type: | Article |
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| Additional Information: | [1] Advance Access publication 8 December, 2009. [2] ISSN 0022-0957 (Print), 1460-2431 (Online). [3](c) 2009 The Author(s). Citation: Elinor P. Thompson, Christopher Wilkins, Vadim Demidchik, Julia M. Davies, and Beverley J. Glover. An Arabidopsis flavonoid transporter is required for anther dehiscence and pollen development. J. Exp. Bot. (2010) 61(2): 439-451 first published online December 8, 2009 doi:10.1093/jxb/erp312. [4] This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html for further details). |
| Uncontrolled Keywords: | anther, fertility, flavonoid, MATE transporter, nectary, pollen |
| Subjects: | Q Science > Q Science (General) Q Science > QK Botany |
| School / Department / Research Groups: | School of Science School of Science > Department of Life & Sports Science |
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| Last Modified: | 20 Nov 2012 16:37 |
| URI: | http://gala.gre.ac.uk/id/eprint/4228 |
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