Hernández LF

Phyton-International Journal of Experimental Botany, Vol.79, pp. 109-115, 2010, DOI:10.32604/phyton.2010.79.109

Abstract The relationships between (1) leaf biomass and morphology (lamina area and petiole and lamina inclination), (2) petiole’s mechanical and structural properties, and (3) the vertical light gradient inside the crop’s canopy were studied in field grown sunflower (Helianthus annuus L.) plants, maintained at optimum soil water and mineral levels. At flowering, incident photosynthetic active radiation (PAR) was measured at the top of the canopy and on individual leaves using a quantum sensor. The fraction of direct incident radiation which passed through the canopy reaching each individual leaf was then calculated. Individual petiole and lamina inclination angles (ia_Petiole and ia_Lamin, respectively)… More >

Mojica-Marín^1* V, HA Luna-Olvera², CF Sandoval-Coronado², B Pereyra-Alférez², LH Morales-Ramos², NA González-Aguilar², CE Hernández-Luna², OG Alvarado-Gomez³

Phyton-International Journal of Experimental Botany, Vol.78, pp. 105-110, 2009, DOI:10.32604/phyton.2009.78.105

Abstract Wide spreading of pepper blight on new plantations and on different production areas in Mexico, and the difficulty in controlling this disease, makes it compulsory to develop new control measures. It is expected that these measures provide new tools for controlling this disease in the context of integrated management strategies. The aim of this investigation was to evaluate and determine the antagonistic potential of 64 strains of Bacillus thuringiensis against Rhizoctonia solani, Phytophthora capsici and Fusarium oxysporum by dual culture assays. Strains of B. thuringiensis came from the International Collection of Entomopatogenic Bacillus from FCBUANL. Results showed that 16 strains… More >

Xie LB¹, X Wang¹, M Peng², Y Zhou¹, LX Chen¹, LX Liu³, YL Gao¹, YH Guo¹

Phyton-International Journal of Experimental Botany, Vol.86, pp. 236-245, 2017, DOI:10.32604/phyton.2017.86.236

Abstract Hot pepper (Capsicum annuum L.) is an important crop all over the world. To explore and identify differentially expressed proteins of hot pepper after space flight, three space-induced mutants (Y1, Y2 and Y3), which obtained new traits after space flight compared with their control lines (W1 and W2), were analyzed using comparative proteome analysis. In this study, leaf morphological characteristics of five kinds of hot pepper variations were evaluated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Results showed that obvious changes of cellular structure were seen in space induced mutants. Thirty nine out of the 255 differentially… More >

García-Munguía CA¹, M Acosta-Ramos², O Vázquez-Martinez³, M Pérez-Sato⁵, A García-Munguía⁴, O García-Munguía⁶, AM García-Munguía³

Phyton-International Journal of Experimental Botany, Vol.86, pp. 258-264, 2017, DOI:10.32604/phyton.2017.86.258

Abstract The illnesses that cause root and neck rot in golf courses constitute a limiting factor for grass development worldwide. This is mainly true when management guidelines are not conducted. Our research was conducted in the Golf Club “Mexico”, located in Mexico, D.F. Isolates were taken from plants that presented yellowing symptoms and root and neck rot. The identified pathogenic fungi, isolated from axenic media, were Giberella avenacea, Fusarium oxysporum, F. oxysporum f. sp. cubense and Pythium ultimum. The molecular characterization showed a comparison of the DNA-obtained sequences which was morphologically determined as F. avenaceum and was molecularly corroborated as G.… More >

Mirleau-Thebaud V^1,2, J Dayde¹, JD Scheiner^1,3,4

Phyton-International Journal of Experimental Botany, Vol.86, pp. 53-67, 2017, DOI:10.32604/phyton.2017.86.053

Abstract Soil compaction represents an important issue in the actual context of agricultural system sustainability. Research on the various developments of root systems under tillage has been explored for many crops, whether for the biomass area or the underground, but very little concerns Sunflower (Helianthus annuus L.). The objectives of the study were to understand the impact of soil tillage and of the induced mechanically compacted soil on: i) sunflower’s root system architecture, ii) biomass area iii) production. Two complementary experiments were realized in the south of France (France’s main sunflower production area). In both experiments, increased resistance of the soil… 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 >

BIOCELL, Vol.41, Suppl.S, pp. 1-74, 2017

Abstract This article has no abstract. More >

Orlando J. CASTEJÓN

BIOCELL, Vol.37, No.2, pp. 29-36, 2013, DOI:10.32604/biocell.2013.37.029

Abstract The present paper shows by means of confocal laser scanning microscopy the immunoreactivity of rat cerebellar Lugaro cells for calbindin, synapsin-I, PSD-95, GluR1, CaMKII alpha, and N-cadherin. Lugaro cells were easily characterized by their location beneath Purkinje cells. Calbindin revealed immunoreactivity in the cell body, and the axonal and dendritic processes. Synapsin-I labelled the presynaptic endings on Lugaro cells. Synapsin-I and PSD-95 immunoreactivity demonstrated the localization of presynaptic and postsynaptic endings surrounding cell soma, corresponding to afferent extrinsic and intrinsic cerebellar fi bers. GluR1 immunoreactivity of the soma and cell processes indicates that Lugaro cells have functional ionotropic glutamate receptors… More >

BIOCELL, Vol.28, Suppl.S, 2004

Abstract This article has no abstract. More >

Jian Shi^1,*, Baptiste Rode¹, David Beech¹

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 98-98, 2019, DOI:10.32604/mcb.2019.06939

Abstract The sensing of blood flow-evoked shear stress is critical in vascular development and maintenance of a healthy vasculature in the adult [1,2]. The identity of molecules which sense and transduce this force into appropriate vascular anatomy and function is therefore keenly sought. A central question is whether there is a force sensor protein (“receptor”) which directly detects the force, acting either alone or in complex with other proteins. Piezo1 channels are Ca²⁺-permeable non-selective cationic channels which are activated by membrane stretch. These channels are important for shear stress-sensing and vascular function in embryonic and adult mice. Through whole-cell perforated patch… More >