Show simple item record

dc.contributor.author Riederer, M.
dc.contributor.author Gartmann, Vanessa
dc.contributor.author Gniwotta, Franka
dc.contributor.author Jetter, R.
dc.contributor.author Vogg, Gerd
dc.contributor.author Carver, Timothy L. W.
dc.date.accessioned 2009-09-23T15:32:20Z
dc.date.available 2009-09-23T15:32:20Z
dc.date.issued 2005
dc.identifier.citation Riederer , M , Gartmann , V , Gniwotta , F , Jetter , R , Vogg , G & Carver , T L W 2005 , ' What do microbes encounter at the plant surface? Chemical composition of Pisum sativum leaf cuticular waxes ' Plant Physiology , vol 139 , no. 1 , pp. 519-530 . , 10.1104/pp.104.053579 en
dc.identifier.issn 1532-2548
dc.identifier.other PURE: 118641
dc.identifier.other dspace: 2160/3067
dc.identifier.uri http://hdl.handle.net/2160/3067
dc.description Gniwotta, F., Vogg, G., Carver, T. L. W., Riederer, M., Jetter, R., Gartmann, V. (2005). What do microbes encounter at the plant surface? Chemical composition of Pisum sativum leaf cuticular waxes. Plant Physiology, 139, (1), pp. 519-530 en
dc.description.abstract In the cuticular wax mixtures from leaves of pea (Pisum sativum) cv Avanta, cv Lincoln, and cv Maiperle, more than 70 individual compounds were identified. The adaxial wax was characterized by very high amounts of primary alcohols (71%), while the abaxial wax consisted mainly of alkanes (73%). An aqueous adhesive of gum arabic was employed to selectively sample the epicuticular wax layer on pea leaves and hence to analyze the composition of epicuticular crystals exposed at the outermost surface of leaves. The epicuticular layer was found to contain 74% and 83% of the total wax on adaxial and abaxial surfaces, respectively. The platelet-shaped crystals on the adaxial leaf surface consisted of a mixture dominated by hexacosanol, accompanied by substantial amounts of octacosanol and hentriacontane. In contrast, the ribbon-shaped wax crystals on the abaxial surface consisted mainly of hentriacontane (63%), with approximately 5% each of hexacosanol and octacosanol being present. Based on this detailed chemical analysis of the wax exposed at the leaf surface, their importance for early events in the interaction with host-specific pathogenic fungi can now be evaluated. On adaxial surfaces, approximately 80% of Erysiphe pisi spores germinated and 70% differentiated appressoria. In contrast, significantly lower germination efficiencies (57%) and appressoria formation rates (49%) were found for abaxial surfaces. In conclusion, the influence of the physical structure and the chemical composition of the host surface, and especially of epicuticular leaf waxes, on the prepenetration processes of biotrophic fungi is discussed. en
dc.format.extent 12 en
dc.language.iso eng
dc.relation.ispartof Plant Physiology en
dc.title What do microbes encounter at the plant surface? Chemical composition of Pisum sativum leaf cuticular waxes en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1104/pp.104.053579
dc.contributor.institution Aberystwyth University en
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Cadair


Advanced Search

Browse

Statistics