Plant green-island phenotype induced by leaf-miners is mediated by bacterial symbionts
- 31 March 2010
- journal article
- research article
- Published by The Royal Society in Proceedings Of The Royal Society B-Biological Sciences
- Vol. 277 (1692), 2311-2319
- https://doi.org/10.1098/rspb.2010.0214
Abstract
The life cycles of many organisms are constrained by the seasonality of resources. This is particularly true for leaf-mining herbivorous insects that use deciduous leaves to fuel growth and reproduction even beyond leaf fall. Our results suggest that an intimate association with bacterial endosymbionts might be their way of coping with nutritional constraints to ensure successful development in an otherwise senescent environment. We show that the phytophagous leaf-mining moth Phyllonorycter blancardella (Lepidoptera) relies on bacterial endosymbionts, most likely Wolbachia, to manipulate the physiology of its host plant resulting in the 'green-island' phenotype-photosynthetically active green patches in otherwise senescent leaves-and to increase its fitness. Curing leaf- miners of their symbiotic partner resulted in the absence of green-island formation on leaves, increased compensatory larval feeding and higher insect mortality. Our results suggest that bacteria impact green-island induction through manipulation of cytokinin levels. This is the first time, to our knowledge, that insect bacterial endosymbionts have been associated with plant physiology.Keywords
This publication has 37 references indexed in Scilit:
- Wolbachia as a bacteriocyte-associated nutritional mutualistProceedings of the National Academy of Sciences, 2009
- Genomics and Evolution of Heritable Bacterial SymbiontsAnnual Review of Genetics, 2008
- The diversity of reproductive parasites among arthropods: Wolbachiado not walk aloneBMC Biology, 2008
- Why Does Herbivore Attack Reconfigure Primary Metabolism?Plant Physiology, 2008
- Symbiosis as an adaptive process and source of phenotypic complexityProceedings of the National Academy of Sciences, 2007
- Cytokinin-mediated leaf manipulation by a leafminer caterpillarBiology Letters, 2007
- The adaptive significance of insect gall morphologyTrends in Ecology & Evolution, 2003
- EVOLUTIONARY DYNAMICS OF HOST-PLANT USE IN A GENUS OF LEAF-MINING MOTHSEvolution, 2003
- The Population Biology of Oak Gall Wasps (Hymenoptera: Cynipidae)Annual Review of Entomology, 2002
- A Greedy Algorithm for Aligning DNA SequencesJournal of Computational Biology, 2000