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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Bursera schlechtendalii Engl. — The Plant List
In conifers, for example, the diterpene content of resin has a direct influence on the bursrea of resin crystallization Schuck, ; Cruteau, ; Gershenzon and Croteau, Bursera medranoana Bursera microphylla A. In many species, canals transport antiherbivore repellents and toxins. Thus, biotypes that rely on both mechanical and chemical defenses have more volatile chemical mixtures, while biotypes that depend solely on chemical protection have more scnlechtendalii and less volatile chemical combinations.
This Sapindales -related article is a stub.
The variation in squirt response tends to be less variable within than among individual plants, suggesting a genetic component to the squirt response Becerra, unpublished ms. Some species of Bursera also produce very simple resins consisting primarily of one or two simple monoterpenes.
The antipredatory function of fecal shields has been experimentally demonstrated in Blepharida beetles. It seems then, that the antipredator strategy of B.
Therefore, although this beetle species is able to disarm the high pressure resin defense of its host, the plant compounds are ingested and birsera in the fecal shields.
Thus, host-derived shields can be effective anti-predatory barriers. About one third of the Mexican Bursera species are able to squirt resins when injured, while another third releases little or no fluids.
Numbers indicate the four main chemical groups according to Ward’s clustering method. One single toxic or repellent compound that satisfies the required physical demands of the squirt defense may be an effective, economical option.
Producing mixtures with more individual compounds requires production of more specific enzymes. Perhaps the greater schlechtendalij complexity of their host makes it more difficult or more energetically expensive to sequester compounds for antipredator schlchtendalii.
In this article we report an investigation of plant secretory canals and their relationship with plant bbursera in the genus Bursera. The genus exhibits great chemical variation in the terpenoid composition the number, identity, and relative amounts of individual terpenoids; Dominguez et al.
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Evolutionary chemical trends in the genus are not well known, although recent studies suggest that there is considerable convergence in the production of different volatile compounds by Bursera species Becerra, Extracts were analyzed by gas chromatography. Germplasm Resources Information Network. Interaction between mechanical and chemical defenses involving terpenoids has been documented in at least one other system. Percentage of monoterpene compounds found in five squirting Bursera species black bars and four non-squirting ones white bars.
Traditionally, plant defenses have been divided into two main categories: Yet, in some plants, structures such as glandular trichomes and secretory canals are combinations of mechanical and chemical deterrence that may burseea to entrap insects in sticky and toxic secretions Southwood, ; Howe and Westley, ; Becerra, a.
In some species this squirt my travel up to two meters and lasts a few seconds Fig. Yet, canal-bearing plants can be vulnerable to phloem-sucking insects that can direct their feeding organs to avoid secretory canals Johnson, The genus burserq notable for its terpenoid secretions and exudates that arise from a system of arborescent resin canals Becerra and Venable, ; Becerra, a.
Biodiversity of Costa Rica
The plant genus Bursera Burseraceae includes about species distributed from southern United States to Peru. When such plants are damaged, there is an immediate release of fluids from injured tissues, often in copious quantities.
Studies dealing with either one of these two kinds of defenses typically assume they are independent of each other and that their actions on herbivores are additive Dussourd and Denno, ; Farrell et al. For more details on methodology see Becerra, The monoterpene fraction is small, compared to the squirting species, and the mixture includes more sequiterpenes and diterpenes. Perhaps the link to terpene squirting provides a clue. To explore this relationship in more detail we identified compounds for four high squirting and four non-squirting species using gas-chromatography-mass spectrometry.
Related articles in Google Scholar. A dendrogram of chemical similarity of Bursera species distinguished four main groups within the genus Fig. 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.
Alticinae include about 45 species Becerra, ; Furth, ; Evans et al. The dominance index of its chemical mixture was 0.