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Main conclusionInNicotiana attenuataseedlings, simulated herbivory by the specialistManduca sextadecreases root growth and partitioning of recent photoassimilates to roots in contrast to increased partitioning reported for older plants. Root elongation rate in Nicotiana attenuata ...
Jasmonic acid (JA) is a crucial plant defence signalling substance that has recently been shown to mediate herbivory‐induced root growth reduction in the ecological model species Nicotiana attenuata. To clarify whether JA‐induced reduction of root growth might be a general response increasing plant fitness under biotic stress, a suite of experiments was performed with the model plant Arabidopsis thaliana...
Formation of channel-like pores in a plant membrane was induced within seconds after application of an aqueous solution containing regurgitant of the insect larvae Spodoptera littoralis. Gated pore currents recorded on the tonoplast of the Charophyte Chara corallina displayed conductances up to several hundred pS. A voltage-dependent gating reaction supports the assumption that pore-forming molecules...
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