In the present study, following fractionation of the methanol extract of cactus stems guided by adjuvant-induced chronic inflammation model in mice, an active anti-inflammatory principle has been isolated and identified as beta-sitosterol.ĭemographic monitoring of Wright fishhook cactus In previous studies, the ethanol extract of cactus (Opuntia ficus-indica) showed potent anti-inflammatory action. The closely aligned results between morphology and microsatellite data support the design and utility of both methods.Īn anti-inflammatory principle from cactus. â€¢ Results suggested that the three subspecific taxa within Coryphantha robustispina are good subspecies but should not be elevated to species rank. For most analyses, distinctions among the three groups were primarily not as great as those between any one of them and the outgroup. â€¢ Our results indicated that, within Coryphantha robustispina, there were three morphologically, genetically, and geographically coherent groups represented by the names C. Data were analyzed using various multivariate analyses. Ten microsatellite DNA loci were isolated and characterized for 204 individuals among 13 populations. Flower characters were measured for 180 individuals among 12 populations. â€¢ Stem characters were measured for 638 individuals among 16 populations. Our primary goal was to explore correlations among geographical distribution, morphology, and genetics of selected populations throughout the range of the species and the outgroup, C. robustispina are listed as endangered by the U. This comparison was important to test reliability of both methods and to gain a better understanding of phytogeography, evolution, and systematics of the species, knowledge that could prove useful for other taxa as well. This study was the first to compare adequately sampled morphological and DNA analyses at the population level in the Cactaceae. Taxonomic circumscription of subspecific taxa within Coryphantha robustispina was evaluated with morphological data and microsatellites. Geographic distribution and taxonomic circumscription of populations within Coryphantha section Robustispina (Cactaceae). We found that Pima pineapple cacti in areas subjected to prescribed fire and with preemptive clearing had the same survival statistically as cacti from sites that were not burned. Refuge staff removed vegetation between 0.3 and 3.0 m from the cactus preburn. Of the 72 sites observed, 35 had no burn after documentation and 37 experienced prescribed fire. In 2014, we examined survival of Pima pineapple cactus documented in 2009 or 2010 within grasslands of Buenos Aires National Wildlife Refuge in Arizona. One example is the endangered Pima pineapple cactus ( Coryphantha scheeriÂ var.Â robustispina), a small hemispheric cactus of desert scrublands and grasslands of south-central Arizona and northern Sonora, Mexico. Managers must evaluate the threat of the burn toward the health and survival of plants of concern including how preemptive clearing before prescribed fire might benefit these species. Jarchow, Christopher Crawford, Julie A.įederal land managers and ranchers often use prescribed fire as a tool to reduce invading woody plants within desert grasslands of the arid southwestern United States. Survival of the endangered Pima pineapple cactus: Does clearing before prescribed fire alter survival postfire? To determine whether pollination limits reproduction of PPC we used florescent dye to quantify pollen flow between individuals in a PPC. robustispina), a federally listed endangered species, occurs throughout southeastern Arizona and has relatively low population densities. Pima pineapple cactus (PPC) ( Coryphantha sheeri var.

robustispina): does pollen flow limit abundance of this endangered species?Ĭhristopher J. Pollination of pima pineapple cactus ( Coryphantha sheeri var.

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