BACKGROUND non-injective routes of immunotherapy in respiratory allergy have being proposed as an alternative to conventional immunotherapy. We carried out a study to evaluate the clinical efficacy and effects sublingual immunotherapy (SLIT) in patient with Cupressaceae pollen respiratory allergy. METHODS twenty patients with Cupressaceae pollen (C. sempervirens) rhinoconjunctivitis, mild ast...

Interpopulational gene flow within a species can reduce population differentiation due to genetic drift, whereas genetic exchange among taxa can impede speciation. We used allozyme data to estimate gene flow within and among geographic races and species of perennial herbs in the Ipomopsis aggregata complex (Polemoniaceae). Estimates of interpopulational gene flow within taxa from two methods (F...

The morphology of silk produced by recluse spiders (Loxosceles arizonica) was investigated by scanning electron microscopy, atomic force microscopy, and transmission electron microscopy. This silk consisted entirely of very long, thin ribbons of width 2-4 microm and thicknesses of no more than 40 nm. The correspondence in shape and dimension between the silk ribbons and the elongated aperture o...

The widely distributed Pinus subsection Ponderosae is a species complex that has a transition zone among taxa in the southwestern United States. In southern Arizona and New Mexico at least two recognized taxa, Pinus ponderosa var. scopulorum and Pinus arizonica or P. ponderosa var. arizonica, are known to coexist in close proximity. In this study, we report the existence of populations where th...

Hesperocyparis (Cupressus) goveniana and putative Cupressus goveniana subsp. gibsonensis plus H. pygmaea were analyzed by Inter-Simple Sequence Repeats (ISSRs). The ISSRs analyses support the continued recognition H. pygmaea and H. goveniana, but the recognition of Cupressus goveniana subsp. gibsonensis Silba was not supported. Phytologia 91(2):277-286 (August, 2009).

El objetivo de nuestra investigación es identificar los componentes químicos y evaluar in vitro, la actividad antibacteriana extractos las hojas Cupressus sempervirens L. arizonica del norte Argelia contra Pseudomonas aeruginosa ATCC 9027. La extracción se realizó macerando en disolventes polaridad creciente (cloroformo, éter petróleo metanol acuoso). Se un cribado compuestos fenólicos para una...

Random amplified polymorphic DNAs (RAPDs) data were analyzed from all the taxa of Cupressus from the western hemisphere. Populations of Cupressus from Arizona and Texas, USA, were found to cluster in the two groups delimited by Wolf (1948): C. arizonica and C. glabra. These data suggest that these taxa might be better recognized at the specific level as per Wolf (1948), rather than at the varie...

Five Hesperocyparis (Cupressus) abramsiana groves were analyzed by Inter-Simple Sequence Repeats (ISSRs). ISSRs analyses revealed geographical differentiation among the groves (= Silba's subspecies) with the Butano Ridge grove being the most distinct in both ISSRs and terpenoids. Combined ISSR and terpenoid data support the recognition of Hesperocyparis. abramsiana var. abramsiana and Hesperocy...

Cellulose degradation by four cellulose-clearing brown-rot fungi in the Coniophoraceae-Coniophora prasinoides, C. puteana, Leucogyrophana arizonica, and L. olivascens-is compared with that of a non-cellulose-clearing brown-rot fungus, Poria placenta. The cellulose- and the non-cellulose-clearing brown-rot fungi apparently employ similar mechanisms to depolymerize cellulose; most likely a nonenz...