scholarly journals Comprehensive physiological analyses and reactive oxygen species profiling in drought tolerant rice genotypes under salinity stress

2017 ◽  
Vol 23 (4) ◽  
pp. 837-850 ◽  
Author(s):  
Sahana Basu ◽  
Ranjan Kumar Giri ◽  
Ibtesham Benazir ◽  
Santosh Kumar ◽  
Ravi Rajwanshi ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Salinity Stress ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Drought Tolerant ◽  
Rice Genotypes

Resveratrol Alleviates the KCl Salinity Stress of Malus hupenensis Rhed. Seedlings by Regulating K+/Na+ Homeostasis, Osmotic Adjustment, and Reactive Oxygen Species Scavenging

2021 ◽  
Author(s):  
Tingting Li ◽  
Yuqi Li ◽  
Zhijuan Sun ◽  
Xiangli Xi ◽  
Guangli Sha ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Osmotic Stress ◽  
Salinity Stress ◽  
Osmotic Adjustment ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Apple Rootstock ◽  
Physiological Mechanisms ◽  
Species Production ◽  
Apple Quality

Abstract Background: Applying large amounts of potash fertilizer in apple orchards for high apple quality and yield aggravates KCl stress. As a phytoalexin, resveratrol (Res) participates in plant resistance to biotic stress. However, its role in relation to KCl stress have never been reported. Results: Malus hupenensis is a widely used apple rootstock in China and is sensitive to KCl stress. In this study, 100 µmol Res was exogenously applied to alleviate KCl stress in M. hupenensis seedlings. The seedlings treated with Res had higher chlorophyll content and photosynthetic index than those without Res treatment. Moreover, the molecular and physiological mechanisms of Res in ion toxicity, osmotic stress, and oxidative damage induced by KCl stress were also investigated. First, exogenous Res affects K+/Na+ homeostasis in cytoplasm by enhancing K+ efflux outside the cells, inhibiting Na+ efflux and K+ absorption, and compartmentalizing K+ into vacuoles. Second, this compound could respond to osmotic stress by regulating the accumulation of proline. Lastly, this polyphenol functions as an antioxidant that strengthens the activities of POD and CAT thus eliminates the reactive oxygen species production induced by KCl stress.Conclusions: Taken together, these results reveal that resveratrol alleviates the KCl salinity stress of M. hupenensis seedlings by regulating K+/Na+ homeostasis, osmotic adjustment, and reactive oxygen species scavenging.

Organic Solutes Protect Drought-Tolerant Populus × euramericana Against Reactive Oxygen Species

2000 ◽  
Vol 156 (1) ◽  
pp. 93-99 ◽  
Author(s):  
G. Guerrier ◽  
F. Brignolas ◽  
C. Thierry ◽  
M. Courtois ◽  
G. Kahlem
Keyword(s):  
Reactive Oxygen Species ◽  
Reactive Oxygen ◽  
Organic Solutes ◽  
Oxygen Species ◽  
Populus Euramericana ◽  
Drought Tolerant

The ABI4‐RbohD/VTC2 regulatory module promotes reactive oxygen species (ROS) accumulation to decrease seed germination under salinity stress

2020 ◽  
Vol 229 (2) ◽  
pp. 950-962
Author(s):  
Xiaofeng Luo ◽  
Yujia Dai ◽  
Chuan Zheng ◽  
Yingzeng Yang ◽  
Wei Chen ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Seed Germination ◽  
Salinity Stress ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Regulatory Module ◽  
Ros Accumulation

scholarly journals Drought-induced production of reactive oxygen species and antioxidants activity of four local upland rice cultivars in Central Sulawesi, Indonesia

2020 ◽  
Vol 21 (6) ◽  
Author(s):  
Ruslan Boy ◽  
Didik Indradewa ◽  
Eka Tarwaca Susila Putra ◽  
Budiastuti Kurniasih
Keyword(s):  
Reactive Oxygen Species ◽  
Upland Rice ◽  
Block Design ◽  
Reactive Oxygen ◽  
Field Capacity ◽  
Oxygen Species ◽  
Rice Cultivars ◽  
Antioxidants Activity ◽  
Drought Tolerant ◽  
Central Sulawesi

Abstract. Boy R, Indradewa D, Putra ETS, Kurniasih B. 2020. Drought-induced production of reactive oxygen species and antioxidants activity of four local upland rice cultivars in Central Sulawesi, Indonesia. Biodiversitas 21: 2555-2565. Drought can be the most severe threat to the production of crop in the world. This water deficit condition may cause a considerable decrease in yield grain of upland rice. Present study was conducted to figure out the level of ROS production and antioxidant activity on upland rice cultivars under drought stress. The experiment was performed using randomized completely block design with two factors, i.e. four cultivars of upland rice (Habo, Hiwanggu, Sunggul, and Lambara) and watering interval (once in one, two, four and eight days). The results showed that there was interaction between cultivars and watering intervals. Drought tolerant cultivars of Habo and Sunggul had higher activities of SOD, POD, AAred as well as α-Toch with lower content on free radicals of O2- and H2O2; whereas non-drought tolerant cultivars of Hiwanggu and Lambara exhibited higher production of O2- and H2O2 and lower level of SOD, POD, AAred as well as α-Toch. It could be concluded that the optimum soil moisture affecting maximum activities of SOD, POD, AAred as well as α-Toch and minimum content of O2- and H2O2 was around 15.88-27.56% in range which was equal to 50.88-87.38% of field capacity.

scholarly journals MicroRNA414c affects salt tolerance of cotton by regulating reactive oxygen species metabolism under salinity stress

RNA Biology ◽  
2019 ◽  
Vol 16 (3) ◽  
pp. 362-375 ◽  
Author(s):  
Wei Wang ◽  
Dan Liu ◽  
Dongdong Chen ◽  
Yingying Cheng ◽  
Xiaopei Zhang ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Salt Tolerance ◽  
Salinity Stress ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Reactive Oxygen Species Metabolism
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