The University of Southampton
University of Southampton Institutional Repository

Powdery mildew infection of wheat leaves changes host solute transport and invertase activity

Sutton, P.N., Gilbert, M.J., Williams, L.E. and Hall, J.L. (2007) Powdery mildew infection of wheat leaves changes host solute transport and invertase activity Physiologia Plantarum, 129, (4), pp. 787-795. (doi:10.1111/j.1399-3054.2007.00863.x).

Record type: Article

Abstract

The effect of powdery mildew (Blumeria graminis) infection of wheat leaves on solute transport and invertase activity of the host tissue has been examined. Sugars (glucose, sucrose, maltose) and amino acids (glutamine, histidine) were taken up by leaf pieces, and radioactivity was transferred to the fungal mycelium. Infection had a marked effect on sugar uptake, particularly for glucose which was taken up into infected tissue at considerably higher rates than into uninfected tissues. In contrast, amino acid uptake rates into infected tissues were lower when compared with those into uninfected tissue. The increase in glucose uptake could be correlated with a change in sugar transporter gene expression as a wheat homologue of the monosaccharide carrier AtSTP4 was shown to increase in infected tissue. Efflux analysis showed a higher leakage of preloaded glucose from infected leaves in comparison with uninfected tissue and transfer to the mycelium was greater for glucose than for the other solutes measured. All types of invertase, measured enzymatically, showed an increase in infected tissue, with the highest proportional increase observed for cell-wall invertase. A partial-length complementary DNA, TaINV2, was isolated for a putative cell-wall invertase; expression studies indicated that levels for this or related sequences increased substantially 3 days after infection.

Full text not available from this repository.

More information

Published date: 1 April 2007

Identifiers

Local EPrints ID: 56426
URI: http://eprints.soton.ac.uk/id/eprint/56426
ISSN: 0031-9317
PURE UUID: 8e509231-9ee8-47c1-aa24-8feb01887ba5

Catalogue record

Date deposited: 08 Aug 2008
Last modified: 17 Jul 2017 14:30

Export record

Altmetrics

Contributors

Author: P.N. Sutton
Author: M.J. Gilbert
Author: L.E. Williams
Author: J.L. Hall

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×