Cuscuta reflexa invasion induces Ca release in its host

Plant Biology
Markus AlbertRalf Kaldenhoff

Abstract

Cuscuta reflexa induces a variety of reaction in its hosts. Some of these are visual reactions, and it is clear that these morphological changes are preceded by events at the molecular level, where signal transduction is one of the early processes. Calcium (Ca(2+)) release is the major second messenger during signal transduction, and we therefore studied Ca(2+) spiking in tomato during infection with C. reflexa. Bioluminescence in aequorin-expressing tomato was monitored for 48 h after the onset of Cuscuta infestation. Signals at the attachment sites were observed from 30 to 48 h. Treatment of aequorin-expressing tomato leaf disks with Cuscuta plant extracts suggested that the substance that induced Ca(2+) release from the host was closely linked to parasite haustoria.

Citations

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Nov 2, 2006·The Plant Journal : for Cell and Molecular Biology·Markus AlbertRalf Kaldenhoff
Aug 21, 2008·Journal of Integrative Plant Biology·Songzi Zhao, Xiaoquan Qi

Related Concepts

Cryptomonas pyrenoidifera
Calcium
Attachment Sites, Microbiological
Second messenger
Tomatoes
Aequorin
Bioluminescence Test
Plants, Genetically Modified
Cuscuta
Bioluminescence

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