Sodium Nitroprusside and Putrescine Mitigate PEG-Induced Drought Stress in Seedlings of Solanum lycopersicum

2021 ◽  
Author(s):  
Sathish Sundararajan ◽  
Rekha Shanmugam ◽  
Venkatesh Rajendran ◽  
Hari Priya Sivakumar ◽  
Sathishkumar Ramalingam
Keyword(s):  
Drought Stress ◽  
Sodium Nitroprusside ◽  
Solanum Lycopersicum

scholarly journals Paramylon Treatment Improves Quality Profile and Drought Resistance in Solanum lycopersicum L. cv. Micro-Tom

Agronomy ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 394 ◽  
Author(s):  
Laura Barsanti ◽  
Primo Coltelli ◽  
Paolo Gualtieri
Keyword(s):  
Drought Stress ◽  
Solanum Lycopersicum ◽  
Drought Resistance ◽  
Water Scarcity ◽  
Fold Increase ◽  
Quality Parameters ◽  
Soluble Carbohydrates ◽  
Antioxidant Compounds ◽  
Solanum Lycopersicum L ◽  
Quality Profile

Tomatoes, the most cultivated vegetables worldwide, require large amounts of water and are adversely affected by water stress. Solanum lycopersicum L., cv. Micro-Tom was used to assess the effects of β-(1,3)-glucan (paramylon) purified from the microalga Euglena gracilis on drought resistance and fruit quality profile. Plants were grown in an aeroponic system under three cultivation conditions: optimal water regimen, water scarcity regimen, and water scarcity regimen coupled with a root treatment with paramylon. Eco–physiological, physicochemical and quality parameters were monitored and compared throughout the lifecycle of the plants. Drought stress caused only a transient effect on the eco–physiological parameters of paramylon-treated plants, whereas physicochemical and biochemical parameters underwent significant variations. In particular, the fruits of paramylon-treated plants reached the first ripening stage two weeks before untreated plants grown under the optimal water regime, while the fruits of stressed untreated plants did not ripe beyond category II. Moreover, antioxidant compounds (carotenoids, phenolic acid, and vitamins) of fruits from treated plants underwent a two-fold increase with respect to untreated plants, as well as soluble carbohydrates (glucose, fructose, and sucrose). These results show that paramylon increases plant resistance to drought and highly improves the quality profile of the fruits with respect to untreated plants grown under drought stress.

scholarly journals Chloroplast proteome response to drought stress and recovery in tomato (Solanum lycopersicum L.)

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Rachele Tamburino ◽  
Monica Vitale ◽  
Alessandra Ruggiero ◽  
Mauro Sassi ◽  
Lorenza Sannino ◽  
...  
Keyword(s):  
Drought Stress ◽  
Solanum Lycopersicum ◽  
Solanum Lycopersicum L ◽  
Chloroplast Proteome

scholarly journals Ascorbate Peroxidase and Superoxide Dismutasegenes Alteration in Tomato (Solanum lycopersicum Mill) under Drought Stress Condition

2018 ◽  
Vol 7 (08) ◽  
pp. 3670-3681
Author(s):  
Gyanendra Kumar Rai ◽  
Ojesvi Mahajan ◽  
Sonalika Kotwal ◽  
Muneeba Banoo ◽  
Monika Singh ◽  
...  
Keyword(s):  
Drought Stress ◽  
Solanum Lycopersicum ◽  
Ascorbate Peroxidase ◽  
Stress Condition ◽  
Drought Stress Condition

scholarly journals Leaf Proteome Response to Drought Stress and Antioxidant Potential in Tomato (Solanum lycopersicum L.)

Atmosphere ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 1021
Author(s):  
Gyanendra Kumar Rai ◽  
Abida Parveen ◽  
Gayatri Jamwal ◽  
Umer Basu ◽  
Ranjeet Ranjan Kumar ◽  
...  
Keyword(s):  
Drought Stress ◽  
Solanum Lycopersicum ◽  
Abiotic Stress Tolerance ◽  
Protective Role ◽  
Fine Tuning ◽  
Antioxidant Enzyme Activities ◽  
Two Dimensional Gel Electrophoresis ◽  
Solanum Lycopersicum L ◽  
Proteomic Approach ◽  
Proteome Database

Advances in proteome research have opened the gateway to understanding numerous metabolic pathways and fundamental mechanisms involved in abiotic stress tolerance. In the present study, the antioxidant capacity of four tomato genotypes i.e., Kashi Amrit, Kashi Anupam, EC-317-6-1, and WIR-4360 was determined under drought stress to ascertain the scavenging potential for reactive oxygen species (ROS). A significant increase in the superoxide dismutase (SOD), Ascorbate peroxidase (APX), and catalase (CAT) activities in all the four genotypes under drought stress was observed, which seemed to be associated with a protective role against ROS (p < 0.001). Based on the antioxidant enzyme activities, a proteomic approach was applied to study differential protein expression in two selected genotypes from different species i.e., EC-317-6-1 (Solanum pimpinellifolium) and Kashi Amrit (Solanum lycopersicum) grown under irrigated, drought, and re-watering conditions. To reveal the protein network regulated under these conditions, two-dimensional gel electrophoresis was employed to identify and quantify the number of proteins in drought-sensitive (Kashi Amrit) and tolerant (EC-317-6-1) genotypes. Matrix-assisted laser desorption/ionization-time of flight analysis (MALDI-TOF) revealed a total of 453 spots after fine-tuning factors i.e., smoothness, saliency, and minimum area that responded to drought. Out of 453 total spots, 93 spots were identified in Kashi Amrit and 154 in EC-317-6-1 under irrigated conditions, whereas 4 spots were identified in Kashi Amrit and 77 spots in EC-317-6-1 under drought conditions. Furthermore, differentially expressed proteins were distinguished according to the fold change of their expression. Information provided in this report will be useful for the selection of proteins or genes in analyzing or improving drought tolerance in tomato cultivars. These findings may assist in the construction of a complete proteome database encompassing various divergent species which could be a valuable source for the improvement of crops under drought-stress conditions in the future.

Sign in / Sign up

Export Citation Format

Share Document