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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CAUDICIFORM Bursera schlechtendalii

In other projects Wikimedia Commons Wikispecies. The plant genus Bursera Burseraceae includes about species bjrsera from southern United States to Peru. Bursera trifoliolata Bursera trimera Bursera vasquezyanesii Bursera vejar-vazquezii Bursera velutina Bursera xochipalensis. These species may also release an anal secretion or regurgitate when attacked or disturbed by predators Evans et al.

Perhaps the link to terpene squirting provides a clue. The rupture of the laticifers stops the flow of latex to the margin of the leaf that is subsequently consumed by these beetles Williams, View large Download slide. Low scores burwera the first principal component signify a lack of compounds of low retention time. Interaction between mechanical and chemical defenses involving terpenoids has been documented in at least one other system.

Bursra the second category are a series of physical barriers to avoid being eaten.

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The chemical mixture of the non-squirting Bursera biflora is less volatile, more diverse, and more complex than the one of Bursera schlechtendalii. Germplasm Resources Information Network. 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.

Also, water-stressed plants dchlechtendalii to release significantly lower amounts of resin, indicating that environmental factors can affect this response Becerra, a.

The dogbane beetle Chrysochus auratus that feeds on Apocynum cannabinum Apocinaceae chews a channel that transects major veins adjacent to the leaf margin. Their high cost is due to extensive chemical reduction mediated by ATP and NADPH and the expense of producing specific enzymes that catalyze the reactions along the biosynthetic pathway.

This phenomenon is less common among plants and, as we will explain in more detail in the following sections, it has very important consequences for herbivore’s antipredator defense. One single toxic or repellent compound that satisfies the required physical demands of the squirt defense may be an effective, economical option. The remaining third releases intermediate amounts of fluids that may partially bathe the leaf blade without producing a squirt.

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The value of the chemical dominance index was much higher for the squirting species than for the non-squirting ones Fig. Extracts of the larvae and enteric discharges of Blepharida schlechtendalii contain all of the volatile compounds identified from the plant. We also analyzed leaves of the non-squirting Bursera biflora and larvae and feces of its herbivore Blepharida flavocostatan Table 3.

Squirt strength was documented by cutting 5 to 20 leaves on multiple individuals per species with nail clippers. Yet, canal-bearing plants can be vulnerable to phloem-sucking insects that can direct their feeding organs to avoid secretory canals Johnson, Blepharida species that feed on non-squirting, chemically more complex plants do not obtain the indirect benefit of protection from their hosts and have developed an alternative behavioral defense.

Articles with ‘species’ microformats Commons category link from Wikidata All stub articles. The effectiveness of canals and their secretions for defense has been documented for many plant species.

BOLD Systems: Taxonomy Browser – Bursera schlechtendalii {species}

When a piece of a leaf is removed, a fine syringe-like spray of resins is released. Comparative biology of defense and antipredator defense in the genus Blepharida and its hosts. Bursera Burseraceae genera Sapindales stubs. The bugsera exhibits great chemical variation in the terpenoid composition the number, identity, and relative amounts of individual terpenoids; Dominguez et al.

A number of species from tropical Asia were once included in this genus, but are now treated in the genus Protium.

In some species this squirt my travel up schlechhendalii two meters and lasts a few seconds Fig. Early-instar larvae are apparently unable to sever the leaf veins. Citing articles via Google Scholar. Leaves of 38 species were collected schlechtndalii the field and their chemical constituents extracted in ethyl acetate.

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These include structures such as spines, trichomes, and hard, very sticky, or smooth surfaces. Insects consume the leaves only after the flow of latex has stopped Dussourd and Denno, Blepharida feeding on resin-releasing Bursera species cut the leaf resin canals before feeding on the leaves Becerra, a.

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.

Bursera aloexylon Schiede ex Schltdl. Larvae of the chrysomelid, Blepharida schlechtendaliibite the midrib of Bursera schlechtendalii to stop the flow of resins going to the leaf.

Bursera linanoe La Llave Rzed. Besides containing toxic chemicals, these exudates pose a mechanical threat to insects because they solidify upon exposure to air and may impede the movement of of herbivorous insects.

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, S is the Simpson index of chemical dominance lower values of S correspond to increased chemical diversity; see text for details. Bars indicate the relative amounts of the different compounds found, according to their retention times in the gas-chromatograph.

Biodiversity of Costa Rica

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. If the different compounds of a mixture act synergistically, greater toxicity or deterrence may result.

Chemical analysis of the extracts of Blepharida Schiechtendalii and Bursera schlechtendalii. The resin of some squirting burseras consists almost entirely of one compound. In these plants, the rupture of an individual canal stops the flow of secretions beyond the cut. Relative amounts of the main 10 to 15 compounds were used for the Principal Component Analysis.