Carmona MA¹, E Simonetti^2,3, ME Ravotti¹, MM Sc,iani⁴, AG Luque⁴, NA Formento⁵, FJ Sautua¹

Phyton-International Journal of Experimental Botany, Vol.86, pp. 265-269, 2017, DOI:10.32604/phyton.2017.86.265

Abstract Soybean root and stem rots caused by soil-borne pathogens are diseases commonly found in soybean fields, and one of the most important causes of crop losses. In the present study, the mycelial sensitivity of Fusarium virguliforme, F. tucumaniae, Sclerotinia sclerotiorum and Macrophomina phaseolina was evaluated on potato dextrose agar media (25 mL) supplemented with different concentrations of manganese phosphite (MnPhi) diluted in water (0, 25, 37.5, 50, 100, 200, 300, 400, 500, 800 and 1000 μg/mL). Mycelial growth sensitivity was analyzed using logarithmic linear regression analysis. The MnPhi concentration needed to inhibit 50% of the mycelial growth (IC₅₀) 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… More >

Pacheco-Aguirre J, E Ruiz-Sánchez, A Reyes-Ramírez, J Cristóbal-Alejo, J Tun-Suárez, L Borges-Gómez

Phyton-International Journal of Experimental Botany, Vol.85, pp. 1-6, 2016, DOI:10.32604/phyton.2016.85.001

Abstract Antagonistic bacteria used as biological control agent may loss effectiveness at the field due to environmental factors such as UV radiation, dryness and high temperature. An inexpensive alternative to protect antagonistic bacteria against such factors is the use of microencapsulating agents. In this work, the effect of microencapsulation of Bacillus subtilis with commercial gums on their antagonistic capacity against Meloidogyne incognita was evaluated. The efficiency of the microencapsulation was verified by the difference between the initial and final concentrations of protein release. The effectiveness as antagonist was evaluated against M. incognita in tomato under greenhouse More >

Moreno Pérez P^1,3, M Gamboa Angulo¹, G Heredia², B Canto Canché¹, CM Rodríguez García¹, IL Medina Baizabal¹, L Peraza Echeverría¹

Phyton-International Journal of Experimental Botany, Vol.85, pp. 7-14, 2016, DOI:10.32604/phyton.2016.85.007

Abstract Nowadays, it is highly necessary to find more and safer agrochemicals. In this sense, micromycetes are an important source of natural products which could be used to control plant diseases. Therefore with the aims to contribute in this searching of natural products with antimicrobial applications, a total of 49 fungal strains were isolated from the Yucatan Peninsula. These fungi were cultured in fermented rice, their respective organic extracts macerated in ethyl acetate (EAE) and methanol (ME) were obtained and tested against five fungal pathogens of agricultural importance. These included Alternaria chrysanthemi, Colletotrichum gloeosporioides, Mycosphaerella fijiensis, and… More >

Marie N’gamba^1,*, Souhil Lebdai^1,*, Camille Hasting², Paul Panayotopoulos¹, Myriam Ammi¹, Loïc Sentilhes², Philippe Descamps², Abdel-Rahmène Azzouzi¹, Pierre Bigot¹

Canadian Journal of Urology, Vol.22, No.2, pp. 7732-7738, 2015

Abstract Introduction: The aim of this study was to identify predictive factors of urolithiasis etiology for acute renal colic (ARC) during pregnancy.
Materials and methods: We performed a retrospective review of all pregnant women hospitalized for an ARC between January 2007 and October 2012 in the department of Obstetrics and Gynecology of a University Hospital. Univariate and multivariate regression models were used to assess potential predictive factors of urolithiasis etiology.
Results: We included 82 patients. A urolithiasis was identified in 24 (29.3%) patients. In univariate analysis, we identified the following predictive factors for a urolithiasis etiology: primiparity… More >

Zhong Yu, Xu Zai-Chun, Han Wun-Lun, Zhu Yun-Yun

Oncology Research, Vol.23, No.4, pp. 147-154, 2015, DOI:10.3727/096504016X14519157902645

Abstract Bone morphogenetic protein-7 (BMP-7) inhibited the pathogenesis of renal injury in response to a variety of stimuli. However, little is known about the molecular regulation and mechanism of endogenous BMP-7 and its renoprotective functions. This study examined the regulation of BMP-7 and its role in the fibronectin secretion and apoptosis of NRK-52E cells resulting from transforming growth factor-β1 (TGF-β1) in vitro. Results showed that TGF-β1 promoted factor-associated suicide (FAS), FAS ligand (FASL), fibronectin (FN), and miRNA-21 expression, while it downregulated phospho-Smad1 (pSmad1), pSmad5, and pSmad8 expressions in NRK-52E cells. In contrast, BMP-7 alleviated TGF-β1-induced cell More >

Abd-Elsalam KA^1,2, K Youssef^1,2, H Almoammar³

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 128-131, 2015, DOI:10.32604/phyton.2015.84.128

Abstract Losses due to postharvest decay may occur at any time during postharvest handling, from harvest to consumption affecting the produce quality and quantity. Accurate identification of the pathogen causing postharvest disease is essential to the selection of an appropriate disease control approach. Nine isolates of Fusarium recovered from orange fruit were identified as Fusarium solani. The fungus is involved with fruit decay. The obtained cultures were purified and grown on potato-dextrose agar (PDA), malt yeast agar (MYA), and Czapek's nutrient media (CNM) under light for identification. A pathogenicity test was carried out to fulfil Koch's postulates. More >

Mora-Silva W^1,3, FR Garcés-Fiallos^1,2, C Suarez-Capello^1,2, CE Belezaca-Pinargote^1,3, P Cedeño-Loja¹, E Vallejo³

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 120-127, 2015, DOI:10.32604/phyton.2015.84.120

Abstract In the Ecuadorian coast one of the most destructive diseases of the pachaco is vascular wilt or stem rot caused by Ceratocystis complex, so the aim of this study was to determine the factors that affect the efficiency of the reaction of bark pachaco to this disease. This research was conducted under laboratory conditions, using trees pachaco S38, S41, S98, AE-1, AE-2 and AE-3, and pathogenic species Ceratocystis paradoxa and C. moniliformis. The method utilized was tissue stem bark,with bark sections with 4.5 cm², and a suspension of 3x10⁴ units infection and remained in a humid chamber for 96… More >

Ocaña-de Jesús RL, AT Gutiérrez-Ibáñez, JR Sánchez-Pale, MD Mariezcurrena-Berasain, G Velázquez-Garduño, A Laguna Cerda, I Rojas Puebla

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 45-50, 2015, DOI:10.32604/phyton.2015.84.045

Abstract The aim of the current research was to determine tomato (Solanum lycopersicum L.) microbiological quality produced under greenhouse conditions in 5 municipalities of the State of Mexico. Studies were conducted during the 2013 production cycle to know the risks and apply prevention strategies prior to its consumption. A microbiological analysis of samples of irrigation water, soil and 100 tomato fruits variety cid was performed to determine Aerobic Mesophiles, Total Coliforms and Fecal Coliforms. The methodology used were those according to the Official Mexican Standards NOM- 109-SSA1-1994, NOM-110-SSA1-1994, NOM-092-SSA1-1994, NOM-113-SSA1-1994, and the Regulations of the National French More >

Ying Zhang¹, Lin Du¹, Xiaole Yue¹, Qun Han¹, Tong Fang²

CMES-Computer Modeling in Engineering & Sciences, Vol.106, No.1, pp. 37-51, 2015, DOI:10.3970/cmes.2015.106.037

Abstract The symmetry breaking bifurcation (SBB) phenomenon in a deterministic parameter Duffing system (DP-DS) is well known, yet the problem how would SBB phenomenon happen in a Duffing system with random parameter (RP-DS) is still open. For comparison study, the results for DP-DS are summarized at first: in short, SBB in DP-DS is just a transition of response phase trajectories from a single self-symmetric one about the origin into two mutual symmetric once, or vice versa. However, in DP-DS case, the two mutual symmetric phase trajectories are never commutable. In view of every sample of RP-DS… More >