BLASTOPHAGA PSENES PDF

PDF | Ficus carica var. smyrica is the rare fruit trees that depend on pollination wasp Blastophbaga psenes for fertilization and forming fruits. In a way, Estahban’s. PDF | On Jan 1, , F. Kjellberg and others published Longevity of a fig wasp ( Blastophaga psenes). Dynamics of Blastophaga psenes Populations, Availability of Caprifigs, and Fig Endosepsis Caused by Fusarium moniliforme. T. J. Michailides and D. P. Morgan .

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Because female trees are lethal, wasps prefer these delayed caprifigs of male trees. After fertilization, females emerge from a syconium with nematodes still in hemocoel along with pollen flakes along her body. The wasps assess the psemes before entrance. Blastophaga psenes Scientific classification Kingdom: Upon sensing these signals from a specific syconium, the wasp will approach that fig.

It pollinates the common fig Ficus carica and the closely related Ficus palmata. The specific problem is: For instance, the fig could be a non-pollinator and therefore not release any chemical substance. When these larvae emerge as adults, they carry pollen that they accumulated in the syconium out of the fig.

The number of offspring is low when the entry number of wasps in a syconium is high. Also, the incidences of this fungus are higher when there is a high population of wasps with limited figs.

Blastophaga – Wikipedia

The wasps become contaminated with spores of the fungus as they contact plant surfaces upon emergence. This also implies that the fig wasp population is much more active and larger in the spring.

Pentane extracts from figs which are pdenes their receptive-phase will attract B. If a wasp detects the signal, it will lower its antennae and will search for the entrance to the fig. When wasps emerge from the syconium, they rush to the nearest syconia.

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A Study of Ficus carica L. Blastophaga grossorum GravenhorstBlastophaga vaidi Blastophaaga, Cynips psenes Linnaeus, Retrieved 26 May This page was last edited on 14 Novemberat When an adult wasp is mature, it mates with another wasp within the syconium. This led to the conclusion that contamination increases as the wasps walk on leaves, petioles, and fruits before they reach the opening to the syconium. Uses authors parameter Articles with ‘species’ microformats Articles needing expert attention from February All articles needing expert attention Biology articles needing expert attention.

After mating, females emerge from the fig and search for a new nearby fig in which to lay their eggs.

Wasps who were higher up in the tree or further out on a branch also showed more fungus on their wings and bodies. This can lead to some flowers not being pollinated because some styles are too long.

Universal Chalcidoidea Database

Mutualism occurs between fig and fig wasps, which creates a need for specific species of figs to be pollinated by specific species of wasps. Due to the fact that wasps do not have very long ovipositors, they can only parasitize ovaries of these female flowers with short styles which are only found on male trees.

Later, the female lays its eggs in the ovaries of another fig by sticking its ovipositor in each flower’s style. Proceedings of the Royal Society B: Male trees contain female flowers with short styles. Female wasps oviposit into the syconium for hatching. All female flowers on male trees with parasitized ovaries with wasp eggs produce larva and no seeds. WikiProject Biology may be able to help recruit an expert. This olfactory stimulus is specific for the wasps’ host fig in this blastoohaga, F.

The American Phytopathological Society. Studies show that wasps on upper surfaces of the leaves were infected with this fungus in higher levels than psehes wasps. In the case of B. Some fall from the fig to the ground. Some wasps can carry a disease that is carried by F.

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However, some ants do not respond to the odor of figs for different reasons. Then, males start enlarging the fig’s opening.

In the case where the ants cannot detect odors, the wasps will not be predated upon. Fig endosepsis is not transmitted transovarily by the fig wasp. This fig can only be pollinated by the symbiotic wasp who has retrieved pollen from another syconium. Because this nematode is primarily found in the hemocoel of a female wasp, males are not associated with nematodes. They know that most fig wasps are located on male fig trees, so they use that relationship to prey on wasps.

Larvae finish development with nematode still inside the hemocoel. Because the fungus grows on the ostiole, the fungus is transmitted to the wasps’ bodies when the wasp emerges from the syconium through the ostiole. They have no wings and die shortly after. Sometimes mating occurs before the female has finished emerging from its cocoon. Both of these genera pollinate Ficus species of figs.

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Blastophaga psenes is a wasp species in the genus Blastophaga. The ants use the fig-fig wasp mutualism to find the fig wasps by detecting an odor that comes from the figs of the male trees. Fig Ficus carica, Moraceae. Males emerge first and start seeking females to mate with.