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 More >

Gil SP¹, ME Reyna¹, L Seisdedos¹, IP Argüello²

Phyton-International Journal of Experimental Botany, Vol.86, pp. 340-344, 2017, DOI:10.32604/phyton.2017.86.340

Abstract TThe goals of this study were (1) to determinate the cultural practice of Solidago chilensis native Asteraceae from Argentina which have to be used in low maintenance gardening and (2) to describe germination and seedlings of S. chilensis and its morphology type. Germination assay treatments (3 repetitions/50 fruits/year) were intact non-scarified and scarified fruits (achenies), collected in La Mesada, La Calera, Dpto. Colón (Córdoba, Argentina) between 2011-2014. Statistical tests were performed. 50 rhizome cuttings, obtained from mother plants selected in the field, were cultivated in same conditions of the field-substrate with or without rooting solution, and they More >

Jin G^1,2, XM Tang³, Y Niu⁴, XY Huang², T Chen², Q Huang², J Zhang², RY Zhou¹

Phyton-International Journal of Experimental Botany, Vol.86, pp. 137-142, 2017, DOI:10.32604/phyton.2017.86.137

Abstract In plants, the mitochondrial NADH dehydrogenase (complex I) is a large protein complex transferring electrons to ubiquinone. For the nine chondriogenes encoding complex I subunits (nad1, nad2, nad3, nad4, nad4L, nad5, nad6, nad7, and nad9), an efficient strategy for the cloning of complete coding sequences (CDSs) is important. Specific orthologous portions of untranslated regions (UTRs) were found based on multiple sequence alignments of chondriogene orthologues encoding complex I subunits in plant species. Based on the conservation of partial UTRs, a one-step PCR strategy was conceived for the cloning of CDSs of the nine chondriogene orthologues. Using… More >

Arun Kumar Pradhan^1,2*, Prafulla Kumar Sahoo¹, Pradeep Kumar Rana²

Journal of Renewable Materials, Vol.5, No.5, pp. 371-379, 2017, DOI:10.7569/JRM.2017.634129

Abstract Chitosan grafted with poly(methyl-methacrylate) (PMMA) and adsorbed with kaolin functionalized as bioadhesive was prepared via emulsion polymerization technique and physiochemically characterized as a bone-graft substitute. The so prepared grafted bioactive bone cement (BBC) bionanocomposites (BNCs), chitosan-g-PMMA/kaolin, was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) analysis, field-emission scanning electron microscopy (FESEM) and thermogravimetric analysis (TGA). The water uptake, retention ability and the nanosize particle arrangement in the polymeric BBC-BNCs were studied along with the mechanical and biodegradation properties. These preliminary investigations of the BNCs will open the door for their use in bioadhesive More >

Wang QL, DH Liu, JY Yue

Phyton-International Journal of Experimental Botany, Vol.85, pp. 270-282, 2016, DOI:10.32604/phyton.2016.85.270

Abstract This study aimed to determine the effects of different Cd concentrations (0, 1, 10, 100, and 300 μM CdCl₂) on Allium plantlets. To achieve this goal, we examined the (1) dynamics of Cd²⁺ flux in the rhizosphere, (2) partitioning of Cd between roots and leaves, (3) formation of reactive oxygen species (ROS), (4) levels of H₂O₂ and chlorophyll, and (5) translocation of several macro- and micronutrients. A strong net Cd²⁺ influx was observed in the root apex after exposure to 100 μM Cd for 24 h. Exposure to either 1 or 10 μM Cd for 96 h More >

Sevik MA

Phyton-International Journal of Experimental Botany, Vol.85, pp. 231-235, 2016, DOI:10.32604/phyton.2016.85.231

Abstract Brassica oleracea var. acephala L. (kale) is widely grown in the Black Sea Region of Turkey. Kale growing has not been common in the other regions of Turkey. A number of diseases can seriously affect Brassica crop production. Field surveys were done to determine the occurrence of viruses in kale-growing areas in Ordu in 2013-2014. Leaf samples were collected from kale plants and tested for the presence of Turnip mosaic virus (TuMV), Cauliflower mosaic virus (CaMV), Turnip yellow mosaic virus (TYMV), and Cucumber mosaic virus (CMV) by DAS-ELISA and bioassays. Result of serological and biological tests showed that 7.7% of these More >

Méndez-Trujillo V¹, M Carrillo-Beltrán¹, B Valdez-Salas¹, D Gonzalez-Mendoza²

Phyton-International Journal of Experimental Botany, Vol.85, pp. 225-230, 2016, DOI:10.32604/phyton.2016.85.225

Abstract The aim of the present study was to isolate autochthonous microorganisms with biosurfactants capacities from the rhizospere of the cotton (Gossypium spp.), cachanilla (Pluchea sericea) and salicornia (Salicornia bigelovii) in the Mexicali valley. The biosurfactant activity and biosurfactant productions by the strains isolated from the rhizosphere of the cotton (Bs-Alg), cachanilla (Bs-Cach) and salicornia (Bs-Cach01) were determined using oil spreading technique and emulsification activity with corn, olive, soybean and diesel oils, respectively. The analysis of the 16S rRNA showed that strains Bs-Alg, Bs-Cach and Bs-Cach01 are closely related among them and with respect to all Bacillus subtilis with more More >

Li RS¹, YJ Tao², FJ Liu², X Hu², QL Xu², KY Li²

Phyton-International Journal of Experimental Botany, Vol.85, pp. 87-93, 2016, DOI:10.32604/phyton.2016.85.087

Abstract The grass pea (Lathyrus sativus L.) and flatpod peavine (Lathyrus cicera L.) are the most economically important and widely cultivated Lathyrus species. However, their utilization is limited due to the presence of their endogenous toxin β-N-oxalyl-L-α, β-diaminopropionic acid (β-ODAP). Thus, a β-ODAP free variety should be developed through some plant breeding technique like either mutational breeding or genetic-manipulation. In this circumstance, the plant regeneration of Lathyrus species becomes a bottleneck. In the present study, an efficient system for in vitro regeneration of L. sativus with high β-ODAP levels, and L. cicera with low β-ODAP levels, was developed from different explants (axillary… More >

María P BENAVIDES¹, Susana M GALLEGO¹, Facundo RAMOS ARTUSO², Mariana CHECOVICH³, Andrea GALATRO^*

BIOCELL, Vol.40, No.1, pp. 1-6, 2016, DOI:10.32604/biocell.2016.40.001

Abstract Plants are exposed to environmental stress, in natural and agricultural conditions.Nitric oxide (NO), a small gaseous molecule which plays important roles in plants, has been involved in many physiological processes, and emerged as an important endogenous signaling molecule in the adaptation of plants to biotic and abiotic stress. NO is produced from a variety of enzymatic and non enzymatic sources, which are not yet fully understood. Also, NO and reactive nitrogen species (RNS) can produce posttranslational modifications affecting protein function. Nitrate reductase, a key enzyme in the nitrogen metabolism, is a proposed source of NO More >

John C. Hoiby¹, Anil N. Netravali^2,*

Journal of Renewable Materials, Vol.3, No.3, pp. 244-258, 2015, DOI:10.7569/JRM.2015.634110

Abstract This article discusses the construction (virtual model) of a fully green cabin using two types of green composites: those that use natural plant-based fibers with soy protein-based resin which have mechanical properties comparable to wood and wood products, and those that use liquid crystalline cellulose fibers with soy proteinbased resin which have properties comparable to high strength steel. Green composites with moderate strength were used to create molded walls and advanced green composites were used to create the load-bearing framework of the cabin. Construction with molded composites and prefabricated framework can greatly simplify traditional wood More >