Ma YQ, X Wang, SH Gao, J Zhang

Phyton-International Journal of Experimental Botany, Vol.85, pp. 79-86, 2016, DOI:10.32604/phyton.2016.85.079

Abstract The conditions for extracting polysaccharides from sweet corncobs (SCP) were studied. Four parameters (ratio of water to raw material, compound enzyme concentration, temperature of enzymolysis and duration of enzymolysis) affecting the extraction of SCP were optimized using response surface methodology (RSM). Under the optimized conditions, the yield of SCP was 17.58 %. SCP had inhibitory effects on α-amylase and α-glucosidase activities, and the IC₅₀ was 20.91 mg/mL and 12.47 mg/mL. SCP may therefore have prevention and treatment effects on postprandial hyperglycemia in diabetes. The inhibitory effects of SCP were improved after fractionation, and were strongest in the fraction SCP80. The… More >

Perissé P¹ y GM Tourn²

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 184-189, 2015, DOI:10.32604/phyton.2015.84.184

Abstract The morphological characteristics of the seeds of Vicia dasycarpa Ten. cv. Tolse FCA were studied in relation to the area of imbibition water entry and were considered the presence of areoles. Seeds were analyzed using a stereo, optical and scanning electron microscope (SEM). The determination of the initial water entry area was carried out by immersing the seeds in a solution of tetrazolium (1%). This study showed that this species has seeds with a halo framing the hilum, an inconspicuous dry aril and a deltoid micropyle. The seedcoat pattern is papillose. The tracheid bar is surrounded by a ring of… More >

Hernández-Quintero JD¹, MH Reyes-Valdés², DV Mendoza-Rodríguez³, M Gómez-Martínez², R Rodríguez-Herrera⁴

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 107-112, 2015, DOI:10.32604/phyton.2015.84.107

Abstract The genus Dasylirion is a group of plants typically present in the Chihuahuan Desert, perennial, with a dioecious sexual behavior and commonly called sotoles. This genus has been little studied from the biological point of view, and the bases of its reproductive response remain unknown. In this work we studied the chromosome number and meiotic response of Dasylirion cedrosanum in the county of Saltillo, Coahuila, located at the North East of Mexico. For the preparation of mitotic chromosomes, we used a technique based on enzymatic treatment with pectolyase and cellulase, as well as staining with acetocarmin dye. For the study… More >

Ocampo Ocampo T¹, DL Ochoa Martínez¹, S Ramírez Rojas², G Valdovinos Ponce¹, C Nava Díaz¹

Phyton-International Journal of Experimental Botany, Vol.82, pp. 235-241, 2013, DOI:10.32604/phyton.2013.82.235

Abstract The Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), in Zacatepec Morelos, started a genetic improvement program of wild and semi-cultivated poinsettia plants ("nochebuena de sol"). It is important to generate a phytosanitary database that allows the release of new varieties and hybrids that provide tolerance to the major pathogens reported in cultivated poinsettia plants. The phytosanitary status of the “nochebuena de sol” plants is not available in Mexico, so the objective of this research was to generate preliminary data about viruses associated to these materials. Based on DAS-ELISA and RT-PCR results, we reported the presence of the Tobacco… More >

Romero-Castillo PA¹, MC Pérez Amador Barron¹, P Guevara Fefer¹, V Muñoz Ocotero¹, A Reyes Dorantes², F Aguirre Garcia², A Amaya Chavez³

Phyton-International Journal of Experimental Botany, Vol.82, pp. 75-80, 2013, DOI:10.32604/phyton.2013.82.075

Abstract The search for new anti-inflammatory drugs with fewer side effects than those currently available in the market has recently attracted the interest of scientists. Medicinal plants might be a natural source of medicines. Such is the case with Ziziphus amole (Sessé & Moc.) M.C. Johnst. or corongoro, a plant species native to México. It is used in traditional medicine as an anti-inflammatory drug, a healing substance and an analgesic, and in the treatment of diarrhea, diabetes, asthma and hemorrhoids. The aim of this study was to evaluate the anti-inflammatory effect of Z. amole in the acute 12-O-tetradecanoylphorbol-13-acetate (TPA) induced mouse… More >

Simonetti E¹, E Alba², A Delibes²

Phyton-International Journal of Experimental Botany, Vol.81, pp. 139-142, 2012, DOI:10.32604/phyton.2012.81.139

Abstract In a previous work, deduced amino acid sequences from twenty wheat peroxidase genes were assigned to seven groups designated as TaPrx108 to TaPrx114. Some of these apoplastic peroxidases have previously shown to play different roles in the plant defense responses to infection by the cereal cyst nematode Heterodera avenae. In the present study, PCR marker analysis using Sears’s aneuploid wheat lines cv. ‘Chinese Spring’ was used to locate four genes encoding peroxidase isozymes. The TaPrx111-A, TaPrx112-D and TaPrx113-F genes were located on the short arm of chromosome 2B and the TaPrx109-C on the long arm of chromosome 1B. These results… More >

Reyes-Valdés MH, JD Hernández-Quintero¹, YA Morales-Reyes², DV Mendoza-Rodríguez, DU González-Uribe, F Ramírez-Godina, JA Villarreal-Quintanilla

Phyton-International Journal of Experimental Botany, Vol.86, pp. 171-180, 2017, DOI:10.32604/phyton.2017.86.171

Abstract The genus Dasylirion forms a group of well-represented perennial, dioecious species called “sotoles” in Mexico. This genus is a main component of the arid lands of northern Mexico and southern United States, and plays important ecological and economic roles. Four D. cedrosanum populations from northeastern Mexico were surveyed to gather statistics related to sex ratios and spatial distribution. The statistics were performed on an unbiased sample of 448 plants. Tests for sex ratio and spatial distribution were carried out. No evidence of departure from a 1:1 sex ratio proportion was found, both at the global level and within sampling sites.… More >

Maojun Zhang^1,2, Jiajin Yao¹, Zhonghang Xia³, Jiangxia Nan^1,*, Cuiqing Zhang¹

CMC-Computers, Materials & Continua, Vol.61, No.3, pp. 1233-1244, 2019, DOI:10.32604/cmc.2019.06118

Abstract It is well known that economic policy uncertainty prompts the volatility of the high-yield bond market. However, the correlation between economic policy uncertainty and volatility of high-yield bonds is still not clear. In this paper, we employ GARCH-MIDAS models to investigate their correlation with US economic policy uncertainty index and S&P high-yield bond index. The empirical studies show that mixed volatility models can effectively capture the realized volatility of high-yield bonds, and economic policy uncertainty and macroeconomic factors have significant effects on the long-term component of high-yield bonds volatility. More >

Yan Gao¹, Chunli Wang¹, Li Yang^1,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 93-93, 2019, DOI:10.32604/mcb.2019.07322

Abstract At present, anterior cruciate ligament (ACL) damage repair is still a huge challenge. Our previous studies indicated that the Lysyl oxidase (LOX) were significantly reduced in injurious ACL fibroblasts, which is the major reason for its poor healing ability. The main purpose of our study was to detected the potential of LOX to act as an anabolic agent in injured ACL. The effect of LOX on the ACL at a concentration of 20ng/mL was investigated. The molecular mechanisms and signaling pathway were elucidated by RNA-sequencing, q-PCR and western blotting. For the in vivo study, the LOX was injected into the… More >

Runze Zhao¹, Tingting Xia¹, Mengyue Wang¹, Fan Feng¹, Wanqian Liu^1,*, Li Yang^1,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 77-77, 2019, DOI:10.32604/mcb.2019.07155

Abstract This study was focus on the exploring the therapeutic function of lysyl oxidase (LOX) in rat nucleus pulposus (NP) cells in intervertebral disc degeneration (IVDD). To do this, a Sprague-Dawley (SD) rat caudal spine degeneration model was established by puncturing the Co5-6 disc. NP cells apoptosis and extracellular matrix (ECM) degeneration in IVDD were evaluated by real-time quantitative reverse transcription-polymerase chain reaction (RT-qPCR), Hematoxylin-Eosin (H&E) and immunofluorescence. Then, the therapeutic effect of LOX on IVDD was evaluated by histological staining. In vitro, the regulator effect of LOX on degenerate rat NP cell was explored. ECM relate proteins and cytokines were… More >