Insect left-over substrate as plant fertiliser

PLANT–MICROBE–INSECT INTERACTIONS: Cytokinins as key regulators in plant–microbe–insect interactions: connecting plant growth and defence

David Giron*, Enric Frago, Ga€ elle Glevarec, Corn e M. J. Pieterse and Marcel Dicke Institut de Recherche sur la Biologie de l’Insecte, UMR 7261, CNRS – Universit e Franc ois-Rabelais, Tours, France; Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS UK; Biomol ecules et Biotechnologies V eg etales, EA 2106 Universit e Franc ois-Rabelais, Tours, France; Plant-Microb...

Plant volatiles as a defense against insect herbivores

Leaves normally release small quantities of volatile chemicals, but when a plant is damaged by herbivorous insects, many more volatiles are released. The chemical identity of the volatile compounds varies with the plant species and with the herbivorous insect species. These volatiles attract both parasitic and predatory insects that are natural enemies of the herbivores. They may also induce de...

Plant polyploidy and insect/plant interactions.

We used flow cytometry and extensive geographic surveys of herbivore attack to test whether repeated evolution of autotetraploidy in the perennial herb Heuchera grossulariifolia Rydb. (Saxifragaceae) has created evolutionary barriers to attack by the specialist moth herbivore Greya politella (Prodoxidae). We found that the moth has colonized tetraploid as well as diploid populations, has coloni...

Plant immunity to insect herbivores.

Herbivorous insects use diverse feeding strategies to obtain nutrients from their host plants. Rather than acting as passive victims in these interactions, plants respond to herbivory with the production of toxins and defensive proteins that target physiological processes in the insect. Herbivore-challenged plants also emit volatiles that attract insect predators and bolster resistance to futur...

Plant–insect Interactions and Pollution