Inhibition of larval growth of Dαcus oleαe by topical application of streptomycin to olives

Tzanakakis, Minos E.; Prophetou, D. A.; Vassiliou, Georgia; Papadopoulos, J.

doi:10.12681/eh.13896

Cited by 4 publications

(1 citation statement)

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“…The unique attributes of the association between olive flies and bacteria compared with other fruit-infesting tephritids, considered with the unusual fruit chemistry of its preferred host, suggest a vital contribution of bacteria to the life cycle of this fly. Indeed, previous studies revealed that the use of antibiotics in the female diet or as a topical application to fruit prevented larval development in unripe olives [ 45 – 48 ]. Nevertheless, under these conditions, larval development was supported to some extent by ripe fruit [ 49 ].…”

Section: Introductionmentioning

confidence: 99%

Symbiotic bacteria enable olive fly larvae to overcome host defences

et al. 2015

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Ripe fruit offer readily available nutrients for many animals, including fruit fly larvae (Diptera: Tephritidae) and their associated rot-inducing bacteria. Yet, during most of their ontogeny, fruit remain chemically defended and effectively suppress herbivores and pathogens by high levels of secondary metabolites. Olive flies (Bactrocera oleae) are uniquely able to develop in unripe olives. Unlike other frugivorous tephritids, the larvae maintain bacteria confined within their midgut caeca. We examined the interaction between larvae, their associated bacteria, and fruit chemical defence, hypothesizing that bacterial contribution to larval development is contingent on the phenology of fruit defensive chemistry. We demonstrate that larvae require their natural complement of bacteria (Candidatus Erwinia dacicola: Enterobacteriaceae) in order to develop in unripe olives. Conversely, when feeding on ripe fruit, larval development proceeds independently of these bacteria. Our experiments suggest that bacteria counteract the inhibitory effect of oleuropein—the principal phenolic glycoside in unripe olives. In light of these results, we suggest that the unique symbiosis in olive flies, compared with other frugivorous tephritids, is understood by considering the relationship between the fly, bacteria and fruit chemistry. When applied in an evolutionary context, this approach may also point out the forces which shaped symbioses across the Tephritidae.

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Section: Introductionmentioning

confidence: 99%

Symbiotic bacteria enable olive fly larvae to overcome host defences

et al. 2015

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Saprophagy, Developing on Decay

Rotheray

2019

Zoological Monographs

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Control of Dacus oleae, a major pest of olives

Manousis

Moore

1987

Int. J. Trop. Insect Sci.

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Dacus oleae (Gmelin) is a major pest of the olive tree Olea europea causing early fruit drop, 'sting' damage to table olives and substantial decreases in the quantity and quality of oil. This review describes the control strategies being developed and in current use-biological, trapping methods, sterile insect release, chemical insecticides, growth regulators and integrated control. Present problems and the implications of the controlling regimes on the disturbance of the agroecosystem are presented. Emphasis is given to newer methods which should be characterized by their specificity and effectivity.Resume-Dacus oleae (Gmelin) est un insecte principal de l'olivier qui occasionne un egrenement precoce des fruits, un endommagement des olives sous une forme de piqures, un reduction de la quantite ainsi qu'une deterioration considerable de la qualite d'huile. Cette etude decrit les strategies de controle qui sont utilisees ou en train d'etre developpees, les methodes biologiques, de piegeage,-les insecticides, les regulateurs de croissance et le controle integre. Les problemes actuels et les incidences des regimes de controle sur l'agroecosysteme sont expliques. Un accent special est mis sur les nouvelles methodes qui pourraient s'averer plus specifiques et plus efficaces.

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Inhibition of larval growth of Dαcus oleαe by topical application of streptomycin to olives

Cited by 4 publications

References 0 publications

Symbiotic bacteria enable olive fly larvae to overcome host defences

Symbiotic bacteria enable olive fly larvae to overcome host defences

Saprophagy, Developing on Decay

Control of Dacus oleae, a major pest of olives

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