Lara-Rivera AH¹, MA Ruiz-Lopez¹, R Rodriguez-Macias¹, C Soto-Velasco¹, PM Garcia-López¹, L Barrientos-Ramirez², JF Zamora-Natera¹

Phyton-International Journal of Experimental Botany, Vol.86, pp. 89-96, 2017, DOI:10.32604/phyton.2017.86.089

Abstract Given that the agronomic potential of Lupinus angustifolius is not yet known in Mexico, we evaluated the yield and chemical composition of six L. angustifolius varieties (Haags Blaue, Boregine, Borlu, Probor, Sonate, and Boruta) in Zapopan, Jalisco, Mexico. Studies were conducted during the Autumn-Winter seasons of 2012-2013. We identified the varieties with the highest and lowest protein concentrations and analyzed their respective amino acid profiles. The major protein constituents were determined by electrophoresis (SDS-PAGE). This experiment was conducted in an agricultural facility at the University of Guadalajara using a completely randomized block design and four replicates. The highest grain yield… More >

Aguirre-Hernández E¹, R San Miguel-Chávez², M Palma Tenango², ME González-Trujano³, E de la Rosa-Manzano⁴, G Sánchez-Ramos⁴, A Mora-Olivo⁴, A Martínez- Palacios⁵, JG Martinez-Ávalos⁴

Phyton-International Journal of Experimental Botany, Vol.86, pp. 46-52, 2017, DOI:10.32604/phyton.2017.86.046

Abstract HPLC analysis of capsaicin and dihydrocapsaicine concentrations obtained from fruits of Capsicum annuum var. glabrisculum, collected from four localities in the state of Tamaulipas, Mexico, was investigated. Selection of localities for this study was carried out considering that 65% of the people living in them gather wild chilli pepper for either autoconsumption or commercial purposes. An ANOVA analysis was carried out for determining capsaicinoids composition variation. Also, a multivariate analysis was carried out using Pearson correlation and principal components analysis to elucidate the influence that environmental factors might have on capsaicinoids concentration. Fruits from the locality El Gavilán had the… More >

MARÍA ESTHER DIUPOTEX-CHONG^*, NÉSTOR J. CAZZANIGA^**, MANUEL URIBE-ALCOCER^*

BIOCELL, Vol.31, No.3, pp. 365-373, 2007, DOI:10.32604/biocell.2007.31.365

Abstract The widespread Mexican apple snail Pomacea flagellata (Say 1827) and the strictly endemic "tegogolo" P. patula catemacensis (Baker 1922) (restricted to Lake Catemaco), are the only known American Ampullariidae that have haploid complements n=13. Pomacea patula catemacensis has suffered a critical reduction in abundance due to immoderate fishing for human consumption. Chromosome slides were obtained from colchicine-injected Pomacea snails collected from nine locations along the coastal zone of the Gulf of Mexico, including Lake Catemaco, for use in principal component analysis (PCA). Total proteins in foot homogenates were analyzed through isoelectric focusing (IEF) and native-PAGE electrophoresis on polyacrylamide gels. The… More >

Sánchez J¹, J Sáenz Mata¹, J Flores³, E Jurado², E Estrada Castillón², O Aguirre², G Muro¹

Phyton-International Journal of Experimental Botany, Vol.87, pp. 252-259, 2018, DOI:10.32604/phyton.2018.87.252

Abstract The chemical and physical properties of the substrate produce positive or negative effects on the germination of seeds, and different pre-germination treatments are applied to obtain better results. However, the use of soil as a substrate where the species grows is usually not evaluated or used as a treatment. The objective of the present study was to evaluate the effect of the native substrate [two types of substrate where the woody species grow (clay and sand)] on the germination of Acacia farnesiana, Larrea tridentata and Prosopis laevigata. In addition, two groups were compared in seeds (grouped and not grouped) of… More >

Chel-Guerrero LD¹, R Gómez-Cansino², SL Gúzman-Gutierrez³, MG Campos-Lara⁴, E Saury-Duch¹, F Díaz de León Sánchez⁵, R Reyes-Chilpa⁶, JA Mendoza-Espinoza⁷

Phyton-International Journal of Experimental Botany, Vol.87, pp. 68-71, 2018, DOI:10.32604/phyton.2018.87.068

Abstract The objective of this study was to investigate extracts from the peels of Annona squamosa L. (purple sugar apple), Annona reticulata L. (custard apple), Chrysophyllum cainito L. (green star apple), and Melicoccus bijugatus Jacq. (mamoncillo), as potential sources of anti-HIV-1 agents. Methanolic extracts from the peels of the aforementioned tropical fruits were obtained by maceration. Antiviral activity was evaluated through HIV-1 RT inhibition by extracts, using a non-radioactive immuno/colorimetric assay (Lenti RT Activity Assay, Cavidi Tech). Assay was performed according to the protocol provided by the manufacturer. Extracts from the peels of A. squamosa, A. reticulata, and C. cainito showed… More >

Gálvez Muñoz YA¹, E Martínez Moreno², S Ramírez Vera², L Latournerie Moreno³, JM Lesher Gordillo¹, G Castañón Nájera^1*

Phyton-International Journal of Experimental Botany, Vol.87, pp. 60-67, 2018, DOI:10.32604/phyton.2018.87.060

Abstract The research was conducted with the aim to identify the variability in situ of wild and semi-wild morphotypes of Capsicum spp. that were found growing in different places of Tabasco and the north of Chiapas States. Morphotypes included “Amashito” (five types), “Pico de paloma” (two types), “Garbanzo”, “Ojo de sapo”, “Ojo de cangrejo”, “Colmillo de lagarto” and “Corazón de pollo”. Such characterization is important because there is an extensive variability of forms cultivated in the country, resulting from a wide range of agroecological diversity as well as diverse forms, colours, flavors and sizes that constitute a valuable collection of genes… More >

Hernández Pérez A¹, E Cerna Chávez², JC Delgado Ortiz³, M Beltrán Beache⁴, LM Tapia Vargas⁵, YM Ochoa Fuentes²

Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 11-13, 2019, DOI:10.32604/phyton.2019.04608

Abstract Mexico is the main producer, consumer and exporter of avocado in the world, being Michoacan the main producer state contributing more than 80% of the national production. There are phytopathogens that decimate the production causing the death of the tree. Root samples were collected in avocado trees that showed the characteristic symptomatology of the disease known as avocado sadness, the sampling was carried out in four of the main avocado producing towns, in the state of Michoacan, Mexico. The isolation consisted in sowing root tissue in Petri dishes with V8^®-PARPH culture medium, subsequently they were identified morphologically and for species… More >