scholarly journals Diversidad y distribución de Ganoderma (Polyporales: Ganodermataceae) en Sonora, México

2016 ◽  
Vol 94 (2) ◽  
pp. 431 ◽  
Author(s):  
Damian López-Peña ◽  
Aldo Gutierrez ◽  
Eduardo Hernández-Navarro ◽  
Ricardo Valenzuela ◽  
Martín Esqueda
Keyword(s):  

<p>Se estudiaron siete especies de <em>Ganoderma</em>: <em>G. applanatum</em>, <em>G. curtisii</em>, <em>G. lobatum</em>, <em>G. oerstedii</em>, <em>G. sessile</em>, <em>G. sessiliforme</em> y <em>G. weberianum</em>. De ellas, <em>G. lobatum</em> y <em>G. oerstedii</em> son nuevos registros para Sonora, mientras que <em>G. sessile</em> y <em>G. weberianum</em> para México. El género tiene una amplia distribución en Sonora, en donde se encuentra en bosque de encino, encino-pino, pino-encino, encino abierto e incluso en zonas xerófilas con mezquital. <em>Ganoderma oerstedii</em> se encontró en la base de <em>Stenocereus thurberi</em>, que lo hace el primer registro sobre una cactácea.</p>

2001 ◽  
Vol 133 (3) ◽  
pp. 301-309 ◽  
Author(s):  
Sergio Castrezana ◽  
Therese Ann Markow

AbstractWe compared the insect and arachnid species found in spring and summer samples of necrotic tissue of three species of columnar cacti, cardón [Pachycereus pringlei (S. Watson) Britten and Rose], organ-pipe (Stenocereus thurberi Buxb.), and senita [Lophocereus schottii (Engelm.) Britten and Rose] (all Cactaceae), endemic to the Sonoran Desert of North America. A total of 9380 arthropods belonging to 34 species, 23 families, 10 orders, and 2 classes were collected in 36 samples. Arthropod communities differed in composition among host cacti, as well as between seasons. These differences may be a function of variation in host characteristics, such as chemical composition and abiotic factors, such as water content or temperature.


2015 ◽  
Vol 93 (2) ◽  
Author(s):  
Santos Bersaín Pérez-González ◽  
Alvaro Reyes-Olivas ◽  
Edmundo García-Moya ◽  
Angelica Romero-Manzanares ◽  
José Rodolfo García-Nava ◽  
...  
Keyword(s):  

<p>La estrategia de germinación es fundamental para asegurar la supervivencia de las poblaciones naturales, mientras <br />que el almacenamiento y la viabilidad de las semillas son importantes en programas de repoblación y cultivo. Ambos aspectos están poco estudiados en cactáceas arborescentes vivíparas del Desierto Sonorense. Esta investigación evaluó la germinación de <em>Stenocereus thurberi</em> en plantas no vivíparas y vivíparas; también se estudió el efecto del almacenamiento en semillas remanentes de frutos que presentaron viviparidad, comparada con el comportamiento de la semilla de progenitores no vivíparos. La respuesta en tiempo de inicio (T<sub>i</sub>) y tiempo medio de germinación (T<sub>50</sub>), así como el potencial germinativo (PG) de las semillas, fueron analizados bajo un diseño de bloques al azar con cuatro repeticiones, en cajas bomboneras (bloques) con unidades experimentales de 50 semillas. Los resultados confirmaron mayor velocidad de germinación y alta tolerancia al almacenamiento en las semillas de frutos caracterizados por viviparidad, a la vez que mostraron variación y reducción del porcentaje de germinación con respecto a las semillas de plantas no vivíparas. La germinación precoz combinada con la alta tolerancia del embrión a la desecación son condiciones extraordinarias y muy raras en el reino vegetal, que favorecen el establecimiento de las plantas al permitir que las plántulas ganen vigor desde antes de que ocurra la dispersión.</p>


2014 ◽  
Vol 9 (6) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Cynthia R. Wright ◽  
Emanuel A. Waddell ◽  
William N. Setzer

Four different cactus species growing in the United States, Stenocereus thurberi growing in Organ Pipe Cactus National Monument, Arizona, Opuntia littoralis and Opuntia ficus-indica, growing on Santa Catalina Island, California, and Opuntia stricta, growing in northern Alabama, were examined for the presence of silica bodies (opaline phytoliths). Silica bodies were found in all four of these cactus species, parallelepiped-shaped crystals in S. thurberi, and starburst-shaped crystalline structures in the three Opuntia species. In addition, the essential oils of the four cactus species were obtained by hydrodistillation and analyzed by gas chromatography – mass spectrometry. To our surprise, S. thurberi, O. littoralis, and O. ficus-indica (but not O. stricta) essential oils contained cyclic oligosiloxanes. To our knowledge, cyclic oligosiloxanes have not been previously found as essential oil components.


Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 281
Author(s):  
Daniela D. Castro-Enríquez ◽  
Beatriz Montaño-Leyva ◽  
Carmen L. Del Toro-Sánchez ◽  
Josué E. Juárez-Onofre ◽  
Elizabeth Carvajal-Millán ◽  
...  

Stenocereus thurberi is an endemic species in northwestern Mexico. It produces colorful fruits called pitayas that have an edible pulp. They have phytochemical compounds associated with biological activities. Ultrafiltration is a widely used method for the clarification of fruit juices and the recovery of phytochemicals. However, its effect has not been extensively studied in extracts. Therefore, the objective of this work is to study the effect of the ultrafiltration of pitaya extract (Stenocereus thurberi) on its phytochemical content, antioxidant capacity, and identification of phenolic compounds by UPLC-DAD-MS, providing greater knowledge about the pitaya. In this study, two extracts were analyzed, the unclarified extract (UE) and the clarified extract (CE). The antioxidant capacity was higher in the CE with 15.93 ± 0.42 mM TE/g, DPPH and 18.37 ± 0.016 mM TE/g, ABTS. The UPLC-MS analysis indicated the decrease in phenolic compounds in the CE and the presence of gallic acid and resorcinol, compounds that had not been identified in other species of Stenocereus spp. The correlation analysis indicated that all the phytochemicals present in the pitaya contribute significantly to the antioxidant capacity. The ultrafiltration process could be a viable option to improve the biological activity of the natural extracts.


2001 ◽  
Vol 46 (2) ◽  
pp. 181-187 ◽  
Author(s):  
Lance S. Evans ◽  
Joseph H. Sullivan ◽  
Marigrace Lim

HortScience ◽  
2002 ◽  
Vol 37 (4) ◽  
pp. 693-696 ◽  
Author(s):  
Eugenio Pérez-Molphe-Balch ◽  
Martha Evelia Pérez-Reyes ◽  
Carlos Antonio Dávila-Figueroa ◽  
Enrique Villalobos-Amador

In vitro propagation systems were developed for Carnegiea gigantea (Engelm.) Britt & Rose, Pachycereus pringlei (Berger) Britt & Rose and Stenocereus thurberi (Engelm.) Buxb, three North American species of columnar cacti. In vitro germinated seedlings were used as a source of explants. Multiple shoot formation from areoles was achieved for three types of explants (apical, lateral, and transverse) cultured on Murashige and Skoog (MS) basal media supplemented with 3% sucrose, 10 g·L-1 agar and various treatments with growth regulators. The highest shoot production efficiency for C. gigantea was obtained on transverse explants cultured on a medium with 2 mg·μmL-1 (8.87 μm) BA, where 5.3 shoots per explant were obtained. In P. pringlei and S. thurberi the best response was obtained using transverse explants on medium with 1 mg·L-1 (4.44 μm) BA (3.8 and 4.3 shoots per explant, respectively). Rooting of the in vitro generated shoots was achieved most efficiently on MS basal media with 3% sucrose, 10 g·L-1 agar and 1 mg·L-1 (4.9 μm) indole-3-butyric acid. Rooting frequencies were 92%, 88%, and 96% for C. gigantea, P. pringlei and S. thurberi, respectively, and the frequency of survival of the plants once transferred to soil was 86% on average. Chemical name used: benzyladenine (BA).


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