Veinal-mesophyll interaction under biotic stress.
作者： Michał Nosek , Piotr Rozpądek , Andrzej Kornaś , Elżbieta Kuźniak , Annegret Schmitt
DOI: 10.1016/J.JPLPH.2015.06.016
关键词:
摘要: According to microscopic observations, germinating hyphae of Botrytis cinerea, though easily penetrating Mesembryanthemum crystallinum mesophyll tissue, are limited in growth mid-ribs and only occasionally reach vascular bundles. In C3 CAM leaves, we found significantly lower rbcL (large RubisCO subunit) abundance. Moreover, minute transcript contents for pepc1 (phosphoenolpyruvate carboxylase) nadpme1 (malic enzyme) genes the suggest that they perform β-carboxylation at a low rate. The gene main H2O2-scavenging enzyme, catL (catalase), showed expression mid-rib parts comparison mesophyll. This allows maintenance higher H2O2 quantities parts. pathogen infection does not impact photosynthesis. However, plants, profiles were similar under biotic stress, with down-regulation up-regulation (however, case significant). After B. cinerea transcripts both antioxidative proteins strongly increased mid-ribs, but infected significant increase was parallel its decrease region this Pathogen modified carbon ROS metabolism mesophyll, resulting establishment successful leaf defense.
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