Ruiz¹ MA, AD Golberg^1,2, O Martínez²

Phyton-International Journal of Experimental Botany, Vol.77, pp. 7-20, 2008, DOI:10.32604/phyton.2008.77.007

Abstract Tetrachne dregei, Panicum coloratum and Eragrostis curvula are perennial forage C4 grasses, introduced from South Africa to the pampean semiarid region. This work was carried out to compare water stress tolerance; forage production and quality of T. dregei, P. coloratum and E. curvula. Studies were conducted under greenhouse and field conditions. In the greenhouse, watering was stopped after eighty one days of plant emergency in the water stress treatment. Water potential (ψ), stomatal resistance (SR) and shoot and root weights were evaluated. Under water stress, ψ diminished earlier and SR increases were higher in P. coloratum than in T. dregei… More >

Zhou C^1,2, CA Busso³, YG Yang², Z Zhang⁴, ZW Wang¹, YF Yang⁵, XG Han¹

Phyton-International Journal of Experimental Botany, Vol.86, pp. 205-213, 2017, DOI:10.32604/phyton.2017.86.205

Abstract The mixed salt stress is common in nature. Salt stress always affects plant growth. Different plant species have different adaptive capacity to salty soils. Leymus chinensis is an herbaceous plant with different leaf colors. However, little research was conducted to explore the different tolerance mechanisms to salt stress among the three different leaf colour genotypes of Leymus chinensis (grey green, transitional color, yellow green). Pot experiments for Leymus chinensis in three leaf colors were conducted under mixed salt treatments in 2010. Malondialdehyde (MDA) and protein concentrations, and the activity of various antioxidant enzymes [i.e., superoxide dismutase (SOD), catalase (CAT), ascorbate… More >

Ferri CM, VV Jouve, AM Sáenz

Phyton-International Journal of Experimental Botany, Vol.86, pp. 190-198, 2017, DOI:10.32604/phyton.2017.86.190

Abstract The defoliation frequency determines above and below ground biomass accumulation, pasture structure and nutritive value. Two defoliation experiments with Panicum coloratum were performed, from September to March. One of them was conducted in pots under greenhouse conditions, and the other one in field plots for three growing seasons (EC) at the Faculty of Agronomy, La Pampa, Argentina (36˚ 46' S; 64˚ 16' W). Defoliation frequency treatments were four cutting intervals (IC; 3, 4, 6 and 8 weeks). In greenhouse experiment, live leaf blade accumulation rates (TAL), tiller appearance (TAM) and death (TMM) rates, live leaf blade length (LL) and above… More >

González-Cervantes G¹, JA Chávez-Simental², IA Ortiz-Sánchez³, LM Valenzuela-Núñez⁴, MA Macías-Corral⁵, JG Arreola-Avila⁶

Phyton-International Journal of Experimental Botany, Vol.86, pp. 40-45, 2017, DOI:10.32604/phyton.2017.86.040

Abstract The introduction of ornamental crops to the Comarca Lagunera is a great market opportunity for producers of flowers, just as it is the case of Caladium bicolor which is exported to Europe, USA, Caribbean islands and Africa. The use of organic products derived from cattle manure for fertilization, improves physical soil conditions and provides significant amount of nutrients to plants and reduce production costs. Therefore, the objective of this study was to quantify the growth of tubercle and root of the ornamental plant Caladium bicolor by applying organic fertilizer (OF) extracted from cattle manure. The experimental design was completely randomized… More >

Espinoza-Sánchez EA¹, YA Sánchez-Peña², JA Torres-Castillo³, EA García-Zambrano², JE Treviño Ramírez², F Zavala-García², SR Sinagawa-García²

Phyton-International Journal of Experimental Botany, Vol.87, pp. 105-112, 2018, DOI:10.32604/phyton.2018.87.105

Abstract In this study, we established an in vitro regeneration system from immature embryos of four varieties of Sweet Sorghum with biotechnological potential. A total of 17 treatments were assesses in the induction of somatic embryogenic calli. We analyzed the effect of Murashige y Skoog media supplemented with different concentrations of plant growth regulators such as auxins and cytokinins. The callus induction response was evaluated using three immature embryos development stages and based on the number of embryos with callus induction. Different responses were observed in the embryos depending of the embryo age, culture condition, media composition and variety. The results… More >

Xiaoning Qin¹, Liqing Yuan², Hongxun Ruan¹, Lin Lin¹

BIOCELL, Vol.43, No.2, pp. 89-98, 2019, DOI:10.32604/biocell.2019.06352

Abstract Interleukin-22 (IL-22) is a member of IL-10 cytokine family which is expressed in activated T cells predominantly and in activated natural killer cells at lower levels. Previous studies have demonstrated the link between elevated levels of IL-22 and disease severity of psoriasis, Crohn’s disease, rheumatoid arthritis and interstitial lung diseases. However, the function of IL-22 in the development and progression of colorectal cancer (CRC) remains elusive. In this study, we first evaluated the IL-22/IL-22R1 level in CRC patients, and found that tumor tissues have more active expression of IL-22 and IL-22R1 than normal tissues, presenting correlation with the degree of… More >

Hala Abdulaziz M ALWARTHAN¹, Mohammad Saud AL ANAZI¹, Narasimha R. PARINE¹, Ramesa Shafi BHAT^1,*, Ghadah ALAMRO¹, Ftoon ALJARBOU¹, Sooad K AL-DAIHAN¹

BIOCELL, Vol.43, No.2, pp. 51-58, 2019, DOI:10.32604/biocell.2019.07019

Abstract Tankyrase1 plays an essential role in cancer progression by regulating telomere length. The study aimed to determine expression of TNKS1 and its regulation in colorectal cancer (CRC) in 20 samples from Saudi patients. mRNA expression of TNKS1 in CRC and paired normal tissues was measured by qRT-PCR. Epigenetic modification of TNKS1 promoter was determined by methylation-specific PCR while somatic mutation was analyzed by Sanger sequencing in exon 10 of the gene. All cancerous and normal tissues expressed TNKS1, but level of expression in CRC tissues was significantly associated with tumor stage though no other parameters; age, gender, and tumor location,… More >

Daniel Scida^1,*, Sébastien Alix¹, Stéphane Buet¹, El Hadi Saidane¹, François Courmont^1,2, Karim Behlouli², Rezak Ayad¹

Journal of Renewable Materials, Vol.7, No.9, pp. 865-875, 2019, DOI:10.32604/jrm.2019.06609

Abstract This work aims at studying the effect of hygrothermal and UV cyclic aging on the tensile properties and esthetic characteristics of non-woven composites. The composite materials were thermo-compressed from non-woven mats made up of PP and flax or kenaf fibers. This works included evaluating the change in color appearance and analyzing the variations in tensile properties and damage mechanisms, depending on the aging time. The presence of the UV protection film on the composite surface showed its effectiveness against aging. From visual observations and measurement of colorimetric parameters, it has been proved effective in the reduction of the bleaching and… More >

Noureddine Baaka^1,*, Manel Ben Ticha^1,2, Wafa Haddar^1,3, Mohamed Farouk Mhenni¹

Journal of Renewable Materials, Vol.7, No.3, pp. 289-300, 2019, DOI:10.32604/jrm.2019.04355

Abstract Acrylic fibres are highly crystalline and non-polar polymers, which makes their dyeing a very difficult step that poses real technical challenges. In order to overcome this concern, it is intended in this paper to modify acrylic fibers by different methods namely cationisation using the Crosscolor DRT then amidoximation using hydroxylamine hydrochloride and ammonium acetate. The resulted samples were dyed then with the bio-colorant extracted from grape marc. The effect of the pretreatment on fibers fine structure using X-ray diffraction and the scanning electron microscope (SEM) images and its correlation with the colour strength of the dyed fabrics was investigated. The… More >

Cláudia Leites Luchese^*, Julia Menegotto Frick Pavoni, Jordana Corralo Spada, Isabel Cristina Tessaro

Journal of Renewable Materials, Vol.7, No.3, pp. 235-243, 2019, DOI:10.32604/jrm.2019.00033

Abstract Corn starch, glycerol and agroindustrial residues were used to produce films by casting. By-products from juice processing, blueberry and jaboticaba in powder with different particle sizes were added in the filmogenic matrix to evaluate its potential as a colorimetric indicator. Blueberry and jaboticaba peels are commonly discarded although contain high amount of important compounds as anthocyanins. These compounds have the ability to color change after immersion in different pH values, demonstrating its potential for the intelligent packaging development. Analyses were performed in a colorimeter after films immersion in different buffer solutions. Visual color changes were perceived; reddish and bluish color… More >