scholarly journals Effects of TiO2 nanoparticles and spermine on antioxidant responses of Glycyrrhiza glabra L. to cold stress

2020 ◽  
Vol 79 (2) ◽  
pp. 137-147 ◽  
Author(s):  
Vahideh Kardavan Ghabel ◽  
Roya Karamian
Keyword(s):  
Low Temperature ◽  
Cold Stress ◽  
Tio2 Nanoparticles ◽  
Growth Parameters ◽  
Stress Conditions ◽  
Glycyrrhiza Glabra ◽  
Tio2 Nps ◽  
Randomized Design ◽  
Glycyrrhiza Glabra L ◽  
Physiological And Biochemical

Licorice (Glycyrrhiza glabra L.) is known as an important medicinal plant throughout the world. Glycyrrhizin is one of the most important specialized metabolites produced by licorice. In order to study the effect of TiO2 nanoparticles (TiO2 NPs) and spermine on physiological and biochemical traits of licorice under cold stress conditions, a factorial experiment was conducted in a completely randomized design with three replications. Plants were exposed to optimum temperature (26 ºC) as control and low temperature (4 ºC) as cold stress conditions and also treated with TiO2 NPs (2 and 5 ppm) and spermine (1 mM), separately. Results from physiological and biochemical analyses of the aerial parts of licorice seedlings showed that the growth parameters and the content of photosynthetic pigments decreased in response to low temperature. TiO2 NPs and spermine treatments increased plant resistance to cold stress and decreased the level of oxidative damage by reduction of malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents. In other hand, TiO2 NPs and spermine caused increase of phenolics, total protein and osmolytes contents under cold stress conditions. An increase in glycyrrhizin content was significantly induced by low temperature, TiO2 NPs and spermine.

scholarly journals Morphological, Physiological and Biochemical Response to Low Temperature Stress in Tomato (Solanum lycopersicum L.): A Review

2021 ◽  
Vol 12 (6) ◽  
pp. 706-712
Author(s):  
D. K. Yadav ◽  
◽  
Yogendra K. Meena ◽  
L. N. Bairwa ◽  
Uadal Singh ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Low Temperature ◽  
Temperature Stress ◽  
Tomato Plant ◽  
Reactive Oxygen ◽  
Pollen Sterility ◽  
Low Temperature Stress ◽  
Stress Conditions ◽  
Oxygen Species ◽  
Physiological And Biochemical

Growth and productivity are traumatized by the low temperature that triggers a series of physiological, morphological, molecular and biochemical changes in plants that eventually disturb plant life. Most of the cultivable lands of the world are adversely affected by temperature stress conditions which have an adverse impact on global tomato productivity. Plants undergo several water related metabolic activities for their survival during cold stress conditions. Understanding the morphological, physiological and biochemical reactions to low temperature is essential for a comprehensive view of the perception of tomato plant tolerant mechanism. This review reports some aspects of low temperature inflated changes in physiological and biochemical in the tomato plant. Low temperature stress influences the reproductive phases of plants with delayed flowering which enhance pollen sterility resultant drastically affects the harvest yield. It also decreases the capacity and efficiency of photosynthesis through changes in gas exchange, pigment content, chloroplast development and decline in chlorophyll fluorescence photosynthetic attributes. Amassing of osmoprotectant is another adaptive mechanism in plants exposed to low temperatures stress, as essential metabolites directly participate in the osmotic adjustment. Furthermore, low temperature stress enhanced the production of reactive oxygen species (ROS) which may oxidize lipids, proteins and nucleic acids which bring in distortion at the level of the cell. At the point when extreme reactive oxygen species produced, plants synthesize antioxidant enzymes and osmoprotectants that quench the abundance of reactive oxygen species. These reviews focus on the capacity and techniques of the tomato plant to react low temperature stress.

Effect of drought stress on growth parameters, osmolyte contents, antioxidant enzymes and glycyrrhizin synthesis in licorice (Glycyrrhiza glabra L.) grown in the field

2018 ◽  
Vol 156 ◽  
pp. 124-134 ◽  
Author(s):  
Marjan Sadat Hosseini ◽  
Davood Samsampour ◽  
Morteza Ebrahimi ◽  
Javier Abadía ◽  
Morteza Khanahmadi
Keyword(s):  
Antioxidant Enzymes ◽  
Drought Stress ◽  
Growth Parameters ◽  
Glycyrrhiza Glabra ◽  
Glycyrrhiza Glabra L

scholarly journals Physiological and biochemical changes induced by Qiangdi nano-863 biological assistant growth apparatus during rice seed priming under temperature stress

2023 ◽  
Vol 83 ◽  
Author(s):  
A. Younas ◽  
W. Xiukang ◽  
Z. Yousaf ◽  
S. Fiaz ◽  
A. Riaz ◽  
...  
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Temperature Stress ◽  
Rice Variety ◽  
Seed Priming ◽  
Stress Conditions ◽  
Rice Seed ◽  
Optimal Temperature ◽  
Rice Varieties ◽  
Physiological And Biochemical

Abstract A huge amount of rice cultivation and consumption occur in Asia particularly in Pakistan and China. However, multiple abiotic stresses especially high and low-temperature proved to be a substantial threat for rice production ultimately risks for food security. To overcome various types of abiotic stress; seed priming is among the effective approaches to improve the rice seed germination and growth vigor. Therefore, the present study was planned to evaluate physiological and biochemical modifications in Chinese and Pakistani rice varieties by Qiangdi 863 biological assistant growth apparatus nano treated water (NTW), Osmopriming Calcium chloride (CaCl2), redox priming hydrogen peroxide (H2O2) and hormonal priming by Salicylic acid (SA) under temperature stress conditions. The experiment was performed with completely randomize design conditions. Five rice varieties, nomenclature as Zhongzoa 39, (Chinese rice variety) KSK 133, KS 282, Super basmati and PK 1121 aromatic (Pakistani rice variety) were sown under low temperature (LT) (17ºC), optimal temperature (OT) 27ºC and high temperature (HT) 37ºC conditions. The present study indicated that nanopriming were the most effective treatments increased Germination Energy Percentage (GEP) (96.1, 100, 100%), Speed of Germination (SG) (27.2, 35.45, 37.1), Final Germination Percentage (FGP) (98.2, 99.1, 99.4%), Seedling Dry Weight Biomass (DWB) (0.1, 0.137, 0.14g), Total Chlorophyll Content (0.502, 13.74, 15.21), antioxidant enzymes Superoxide Dismutase (SOD)(3145, 2559, 3345 µg-1FWh-1), Catalase (CAT) (300, 366, 3243 µg-1FWh-1) and decreased Malondialdehyde (MDA) (6.5, 12.2, 6.5 µmol g-1 FW) for Zhongzao 39 and KSK 133 rice varieties under low (LT+NTW), optimal temperature (OP+NTW) and high temperature (HT+NTW) stress., Therefore, nano-priming is recommended to cope with the high and low-temperature stress conditions along with improved productivity of rice.

Targeted purification of glabridin and congeneric metabolites from Glycyrrhiza glabra L.

Planta Medica ◽  
2014 ◽  
Vol 80 (10) ◽  
Author(s):  
LL Gauthier ◽  
C Simmler ◽  
DS Nikolic ◽  
R Van Breemen ◽  
SN Chen ◽  
...  
Keyword(s):  
Glycyrrhiza Glabra ◽  
Glycyrrhiza Glabra L

Formulation and Evaluation of Polyherbal Cream Containing Cinnamomum zeylanicum Blume, Glycyrrhiza glabra L and Azadirachta indica A. Juss. Extracts to Topical Use

2020 ◽  
Vol 25 (2) ◽  
pp. 61-71
Author(s):  
Rajendra Gyawali ◽  
Rupesh Kumar Gupta ◽  
Sahana Shrestha ◽  
Rajendra Joshi ◽  
Prem Narayan Paudel
Keyword(s):  
Azadirachta Indica ◽  
Antioxidant Properties ◽  
Flow Property ◽  
Antioxidant Property ◽  
Glycyrrhiza Glabra ◽  
Cinnamomum Zeylanicum ◽  
Cream Formulation ◽  
Glycyrrhiza Glabra L ◽  
Lipid Peroxidase ◽  
Dpph Scavenging

Alcoholic extracts of medicinal plants Cinnamomum zeylanicum Blume, Glycyrrhiza glabra L, and Azadirachta indica A. Juss were subjected to the evaluation of antioxidant properties and combined for the cream formulation. The antioxidant property was determined by using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay and inhibition of lipid peroxidase assays. The cream formulation was designed using Minitab software and a central composite design was used to study the effect of dependent variables, steric acid and cetyl alcohol on the response variables such as, viscosity, pH, and spreadability. The phytochemical screening of extracts showed the presence of tannin, phenol, flavonoids, saponins, and alkaloids. Antioxidant properties of the extracts and their relative composition were found variable. Composition F3 (C. zeylanicum Blume: G. glabra L: A. indica A. Juss; 01: 02: 01) possessed the highest antioxidant capacity compared to other ratios. The cream prepared from this composition was found stable for pH, viscosity as well as antioxidant activity under normal condition (25) and accelerated condition (40 ). The cream with DPPH scavenging activity of 93.86 % at 15 µg/mL (IC50 8.58±0.30) and lipid peroxidase assay 90.93 % at 200 µg/mL (IC50 72.30±0.60) with pH 5.50 was found with a non-Newtonian positive thixotropic flow property. Parameters like pH, viscosity, and spreadability of the cream were within the acceptance range, and found stable and permeable

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