Environmental Entomology (1987) 16, 374-378

Brigitta Martens and John T. Trumble (1987)
Structural and photosynthetic compensation for leafminer (Diptera: Agromyzidae) injury in lima beans
Environmental Entomology 16 (2), 374-378
Abstract: Palisade mesophyll tissue removed from mature leaves of Phaseolus lunatus L. by the leafmining herbivore Liriomyza trifolii (Burgess) was replaced with photosynthetically active cells, permitting virtually complete recovery from injury. No significant differences in biomass production or levels of ribulose-1,5-bisphosphate carboxylase were observed between damaged and control. plants. Decreases in photosynthesis did not exceed 10% for leaves with approximately one-fourth of the leaf area mined. Development of other, photosynthetically inactive callus cells along vascular bundles and frass deposits served to compartmentalize leafmines, generating a suitable microclimate for regeneration of cells as well as preventing intrusion of disease inoculum and arthropod pests. Such cellular regrowth not only benefits the host, but provides substantial advantages for facultatively cannibalistic larvae that are incapable of relocating to undamaged leaves.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): John T. Trumble

Research topic(s) for pests/diseases/weeds:
damage/losses/economics
resistance/tolerance/defence of host

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Liriomyza trifolii	Beans (Phaseolus)