BURSERA SCHLECHTENDALII PDF

EEB Greenhouse Accession Data for Bursera schlechtendalii. Bursera schlechtendalii is a species of plants with 32 observations. Brief summary. No one has contributed a brief summary to this page yet. Explore what EOL knows about Bursera schlechtendalii. Add a brief summary to this.

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Shlechtendalii other plant-herbivore systems, the physical properties of the resins are determined by their terpenoid composition. Also we present data which suggest that the interaction between these components has profound repercussions on how Bursera ‘s herbivores defend themselves against their predators.

Tropicos | Name – Bursera schlechtendalii Engl.

From a physical point of view, squirting requires the resin to be in a liquid, low-viscosity state. Bursera Bursera simaruba Scientific classification Kingdom: We analyzed the leaves and squirt of Bursera schlechtendalii and the larvae, feces, regurgitate and anal secretion of Blepharida schlechtendalii Table 2.

View large Download slide. The compounds of the non-releasing species are heavier and the mixture is more complex, as with B. The occurrence of complex mixtures of compounds, is a widespread phenomenon among plants that produce terpenoids and it has been associated with several factors Gershenzon and Croteau, The plant genus Bursera Burseraceae includes about species distributed from southern United States to Peru.

Chemical analyses of the squirting Bursera schlechtendalii sdhlechtendalii bars and the non-resin releasing Bursera biflora white bars. Yet, in some plants, structures such as glandular trichomes and secretory canals are combinations of mechanical and chemical deterrence that may interact to entrap insects in sticky and toxic secretions Southwood, ; Howe and Westley, ; Becerra, a. SUMMARY It is apparent that an interaction echlechtendalii between the chemical and the mechanical components of the squirt gun defense in Burserawhich has resulted in some species having powerful squirts but simple chemistry.

Bursera schlechtendalii Engl. — The Plant List

The squirt defense has detrimental effects even on these specialized vein-cutting herbivores. The rupture of the laticifers stops the flow of latex to the margin of the leaf that is subsequently consumed by these beetles Williams, Bursera aloexylon Schiede ex Schltdl.

These beetles often carry spores of pathogenic fungi that infect the tree, weaken it, and accelerate its death. In conifers, for example, the diterpene content of resin has a direct influence on the rate of resin crystallization Schuck, ; Cruteau, ; Gershenzon and Croteau, We present data suggesting an interaction between the mechanical and the chemical components of this defense.

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Cluster 1 consists mostly of species that release abundant resins when injured, often in the form of a squirt. Bursera fagaroides Kunth Engl.

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We also analyzed leaves of the non-squirting Bursera biflora and larvae and feces of its herbivore Blepharida flavocostatan Table 3. The chemical mixture of the non-squirting Bursera biflora is less volatile, more diverse, and more complex than the one of Bursera schlechtendalii. Chemical constituents were extracted and chemically analyzed as described in the text. Extracts of the larvae and enteric discharges of Blepharida schlechtendalii contain all of the volatile compounds identified from the plant.

It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide. Low scores on the first principal component signify a lack of compounds of low retention time.

Bursera schlechtendalii

We have measured the squirt response of a sample of 15 to 20 leaves in each of individual plants of Bursera schlechtendalii over 5 yr. Blepharida feeding on resin-releasing Bursera species cut the leaf resin canals before feeding on the leaves Becerra, a.

Thus, biotypes that schlechtrndalii on both mechanical and schleechtendalii defenses have more schlechtenvalii chemical mixtures, while biotypes that depend solely on chemical protection have more complex and less volatile chemical combinations. Citing articles via Google Scholar. Wikimedia Commons has media related to Bursera. The genus exhibits great chemical variation in the terpenoid composition the number, identity, and relative amounts of individual terpenoids; Dominguez et al.

Interaction between mechanical and chemical defenses involving terpenoids has been documented in at least one other system. Finally, mixtures may also occur simply because certain biosynthetic enzymes of terpenoids produce multiple products Colby et al.

However, larvae living on plants with a higher percentage of squirting leaves have higher mortality. Germplasm Resources Information Network.

Leaves of 38 species were collected in the field and their chemical constituents extracted in ethyl acetate. Studies dealing with either one of these two kinds of defenses typically assume they are independent of each other and that their schlecthendalii on herbivores are additive Dussourd and Denno, ; Farrell et al. Email alerts New issue alert. Dominance Index values for the mixture of four squirting Bursera species black bars and for four schpechtendalii ones white bars.

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Bursera penicillata fruits sschlechtendalii leaves. Larvae of the chrysomelid, Blepharida schlechtendaliibite the midrib of Bursera schlechtendalii to stop the flow of resins going to the leaf. However, larvae reared on lettuce, regained full protection when their shields schlechtensalii removed and replaced with host-derived shields. Chemical analysis of the extracts of Blepharida Schiechtendalii and Bursera schlechtendalii. Dendrogram of Bursera species based on chemical similarity.

Thus, producing a very simple mixture of schlechtendaoii or two simple monoterpenes may be an adaptation of squirting plants to alleviate the high metabolic costs of terpenoid synthesis. They are native often for many species endemic to the Americasfrom the southern United States south through to northern Argentinain tropical and warm temperate forest habitats. Articles with ‘species’ microformats Commons category link from Wikidata All stub articles.

If the release of a highly pressurized liquid is an effective antiherbivore defense, the chemical nature of the individual components may not be as important as in non-releasing Bursera species.

The new world members of the genus Blepharida Chrysomelidae: Trenching and vein-cutting behaviors have been reported for lepidopterans, orthopterans and coleopterans, and there is a correlation between resin canal organization and method of deactivation by insects Dussourd and Denno, This slows their growth, delays pupation, and increases their risk of predation Becerra, a.

This evidence suggests that there is a correlation between mechanical and chemical defenses in Bursera. This Sapindales -related article is a schlechtendalik. In these plants, the rupture of an individual canal stops the flow of secretions beyond the cut. Larvae of Blepharida species that feed on the Bursera species which release little or no fluids after damage, do not sever the leaf veins.

The antipredatory defense of beetles of the genus Blepharida corresponds to the defenses of the Bursera species they feed on.