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Phytochemistry

Title:		Plants and insect eggs: how do they affect each other?
Author(s):		Hilker M; Meiners T;
Address:		"Freie Universitat Berlin, Institute of Biology, Applied Zoology/Animal Ecology, Haderslebener Str. 9, D-12163 Berlin, Germany. hilker@zedat.fu-berlin.de"
Journal Title:		Phytochemistry
Year:		2011
Volume:		20110323
Issue:		13
Page Number:		1612 - 1623
DOI:		10.1016/j.phytochem.2011.02.018
ISSN/ISBN:		1873-3700 (Electronic) 0031-9422 (Linking)
Abstract:		"Plant-insect interactions are not just influenced by interactions between plants and the actively feeding stages, but also by the close relationships between plants and insect eggs. Here, we review both effects of plants on insect eggs and, vice versa, effects of eggs on plants. We consider the influence of plants on the production of insect eggs and address the role of phytochemicals for the biosynthesis and release of insect sex pheromones, as well as for insect fecundity. Effects of plants on insect oviposition by contact and olfactory plant cues are summarised. In addition, we consider how the leaf boundary layer influences both insect egg deposition behaviour and development of the embryo inside the egg. The effects of eggs on plants involve egg-induced changes of photosynthetic activity and of the plant's secondary metabolism. Except for gall-inducing insects, egg-induced changes of phytochemistry were so far found to be detrimental to the eggs. Egg deposition can induce hypersensitive-like plant response, formation of neoplasms or production of ovicidal plant substances; these plant responses directly harm the eggs. In addition, egg deposition can induce a change of the plant's odour and leaf surface chemistry which serve indirect plant defence with the help of antagonists of the insect eggs. These egg-induced changes lead to attraction of egg parasitoids and their arrestance on a leaf, respectively. Finally, we summarise knowledge of the elicitors of egg-induced plant changes and address egg-induced effects on the plant's transcriptional pattern"
Keywords:		"*Adaptation, Physiological Animals Behavior, Animal *Eggs *Insecta/embryology/metabolism Odorants *Oviposition Parasites Photosynthesis *Plant Diseases Plant Leaves/chemistry *Plant Physiological Phenomena Plants/*chemistry Sex Attractants/metabolism;"
Notes:		"MedlineHilker, Monika Meiners, Torsten eng Research Support, Non-U.S. Gov't Review England 2011/03/29 Phytochemistry. 2011 Sep; 72(13):1612-23. doi: 10.1016/j.phytochem.2011.02.018. Epub 2011 Mar 23"