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Calcium signaling during the plant-plant interaction of parasitic Cuscuta reflexa with its hosts.

Albert, Markus and Kaiser, Bettina and van der Krol, Sander and Kaldenhoff, Ralf (2010):
Calcium signaling during the plant-plant interaction of parasitic Cuscuta reflexa with its hosts.
In: Plant signaling & behavior, pp. 1144-6, 5, (9), ISSN 1559-2324,
[Article]

Abstract

The plant parasite Cuscuta reflexa induces various responses in compatible and incompatible host plants. The visual reactions of both types of host plants including obvious morphological changes require the recognition of Cuscuta ssp. A consequently initiated signaling cascade is triggered which leads to a tolerance of the infection or, in the case of some incompatible host plants, to resistance. Calcium (Ca(2+)) release is the major second messenger during signal transduction. Therefore, we have studied Ca(2+) spiking in tomato and tobacco during infection with C. reflexa. In our recently published study Ca(2+) signals were monitored as bioluminescence in aequorin-expressing tomato plants after the onset of C. reflexa infestation. Signals at the attachment sites were observed from 30 to 48 h after infection. In an assay with leaf disks of aequorin-expressing tomato which were treated with different C. reflexa plant extracts it turned out that the substance that induced Ca(2+) release in the host plant was closely linked to the parasite's haustoria.

Item Type: Article
Erschienen: 2010
Creators: Albert, Markus and Kaiser, Bettina and van der Krol, Sander and Kaldenhoff, Ralf
Title: Calcium signaling during the plant-plant interaction of parasitic Cuscuta reflexa with its hosts.
Language: English
Abstract:

The plant parasite Cuscuta reflexa induces various responses in compatible and incompatible host plants. The visual reactions of both types of host plants including obvious morphological changes require the recognition of Cuscuta ssp. A consequently initiated signaling cascade is triggered which leads to a tolerance of the infection or, in the case of some incompatible host plants, to resistance. Calcium (Ca(2+)) release is the major second messenger during signal transduction. Therefore, we have studied Ca(2+) spiking in tomato and tobacco during infection with C. reflexa. In our recently published study Ca(2+) signals were monitored as bioluminescence in aequorin-expressing tomato plants after the onset of C. reflexa infestation. Signals at the attachment sites were observed from 30 to 48 h after infection. In an assay with leaf disks of aequorin-expressing tomato which were treated with different C. reflexa plant extracts it turned out that the substance that induced Ca(2+) release in the host plant was closely linked to the parasite's haustoria.

Journal or Publication Title: Plant signaling & behavior
Volume: 5
Number: 9
Divisions: 10 Department of Biology > Applied Plant Sciences
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10 Department of Biology
Date Deposited: 31 Aug 2011 11:59
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