Endogenous melatonin deficiency aggravates high temperature-induced oxidative stress in Solanum lycopersicum L.

2019 ◽  
Vol 161 ◽  
pp. 303-311 ◽  
Author(s):  
Golam Jalal Ahammed ◽  
Wen Xu ◽  
Airong Liu ◽  
Shuangchen Chen
Keyword(s):  
Oxidative Stress ◽  
High Temperature ◽  
Solanum Lycopersicum ◽  
Solanum Lycopersicum L ◽  
Endogenous Melatonin

Potassium starvation induces oxidative stress in Solanum lycopersicum L. roots

2012 ◽  
Vol 169 (14) ◽  
pp. 1366-1374 ◽  
Author(s):  
M. Hernandez ◽  
N. Fernandez-Garcia ◽  
J. Garcia-Garma ◽  
J.S. Rubio-Asensio ◽  
F. Rubio ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Solanum Lycopersicum ◽  
Solanum Lycopersicum L ◽  
Potassium Starvation

scholarly journals Efecto De La Humedad Relativa Y La Temperatura En La Aplicacion De Insecticidas Organofosforados Y Carbamatos E Impacto En La Colinesterasa De Agro Productores De Tomate (Solanum Lycopersicum L.) En La Localidad De “San Luis, Chimborazo, Ecuador

2018 ◽  
Vol 14 (24) ◽  
pp. 204
Author(s):  
Lindao Córdova V. A. ◽  
Jave Nakayo J. L. ◽  
Retuerto Figueroa M. G. ◽  
Ramos Sevilla E. I. ◽  
Jinez Llangari P. A.
Keyword(s):  
High Temperature ◽  
Relative Humidity ◽  
Correlation Analysis ◽  
Solanum Lycopersicum ◽  
Solanum Lycopersicum L ◽  
San Luis ◽  
Carbamate Insecticides ◽  
Kinetic Spectrophotometric ◽  
One Year ◽  
The One

This research aimed to determine the effect of relative humidity and temperature in the application of organophosphorus and carbamate insecticides and impact on the colinesterasa of tomato agro producers (Solanum lycopersicum L.) in the location of" San Luis, Chimborazo, Ecuador.The technique used was spectrophotometry. The cholinesterase test was performed on the one hundred and seventy patients of the five communities exposed between one year and more than ten years, in the handling and application of organophosphorus and carbamate insecticides. The method used was kinetic-spectrophotometric (405 nm at 37 ° C). Through the Kruskal Wallis test and the regression and correlation analysis it was determined the significance and the level of correlation and determination between the variables under study and their effect on cholinesterase levels. Concluding that the applications of the organophosphorus and carbamate insecticides under greenhouse with low relative humidity and high temperature, accompanied by the lack of precautions in the management of the crop, contribute to the decrease of the cholinesterase level of the agro producers.

scholarly journals Canavanine Increases the Content of Phenolic Compounds in Tomato (Solanum lycopersicum L.) Roots

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1595
Author(s):  
Pawel Staszek ◽  
Urszula Krasuska ◽  
Magdalena Bederska-Błaszczyk ◽  
Agnieszka Gniazdowska
Keyword(s):  
Oxidative Stress ◽  
Phenolic Compounds ◽  
Solanum Lycopersicum ◽  
Prolonged Treatment ◽  
Enzymatic Antioxidants ◽  
Root Tips ◽  
Polyphenol Oxidases ◽  
Solanum Lycopersicum L ◽  
Genes Encoding ◽  
Total Antioxidant

Canavanine (CAN) is a nonproteinogenic amino acid, and its toxicity comes from its utilization instead of arginine in many cellular processes. As presented in previous experiments, supplementation of tomato (Solanum lycopersicum L.) with CAN led to decreased nitric oxide (NO) level and induced secondary oxidative stress. CAN improved total antioxidant capacity in roots, with parallel inhibition of enzymatic antioxidants. The aim of this work was to determine how CAN-dependent limitation of NO emission and reactive oxygen species overproduction impact content, localization, and metabolism of phenolic compounds (PCs) in tomato roots. Tomato seedlings were fed with CAN (10 and 50 µM) for 24 or 72 h. Inhibition of root growth due to CAN supplementation correlated with increased concentration of total PCs; CAN (50 µM) led to the homogeneous accumulation of PCs all over the roots. CAN increased also flavonoids content in root tips. The activity of polyphenol oxidases and phenylalanine ammonia-lyase increased only after prolonged treatment with 50 µM CAN, while expressions of genes encoding these enzymes were modified variously, irrespectively of CAN dosage and duration of the culture. PCs act as the important elements of the cellular antioxidant system under oxidative stress induced by CAN.

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