Reactive oxygen species, ascorbate–glutathione pool, and enzymes of their metabolism in drought-sensitive and tolerant indica rice (Oryza sativa L.) seedlings subjected to progressing levels of water deficit

PROTOPLASMA ◽  
2012 ◽  
Vol 250 (2) ◽  
pp. 585-600 ◽  
Author(s):  
Samantha Pyngrope ◽  
Kumari Bhoomika ◽  
R. S. Dubey
Keyword(s):  
Reactive Oxygen Species ◽  
Oryza Sativa ◽  
Water Deficit ◽  
Oryza Sativa L ◽  
Indica Rice ◽  
Reactive Oxygen ◽  
Oxygen Species

scholarly journals Reactive Oxygen Species (ROS) Metabolism and Nitric Oxide (NO) Content in Roots and Shoots of Rice (Oryza sativa L.) Plants under Arsenic-Induced Stress

Agronomy ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1014 ◽  
Author(s):  
Ernestina Solórzano ◽  
Francisco J. Corpas ◽  
Salvador González-Gordo ◽  
José M. Palma
Keyword(s):  
Oxidative Stress ◽  
Nitric Oxide ◽  
Reactive Oxygen Species ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Antioxidative Systems ◽  
Ros Metabolism ◽  
As Stress

Arsenic (As) is a highly toxic metalloid for all forms of life including plants. Rice is the main food source for different countries worldwide, although it can take up high amounts of As in comparison with other crops, showing toxic profiles such as decreases in plant growth and yield. The induction of oxidative stress is the main process underlying arsenic toxicity in plants, including rice, due to an alteration of the reactive oxygen species (ROS) metabolism. The aim of this work was to gain better knowledge on how the ROS metabolism and its interaction with nitric oxide (NO) operate under As stress conditions in rice plants. Thus, physiological and ROS-related biochemical parameters in roots and shoots from rice (Oryza sativa L.) were studied under 50 μM arsenate (AsV) stress, and the involvement of the main antioxidative systems and NO in the response of plants to those conditions was investigated. A decrease of 51% in root length and 27% in plant biomass was observed with 50 μM AsV treatment, as compared to control plants. The results of the activity of superoxide dismutase (SOD) isozymes, catalase, peroxidase (POD: total and isoenzymatic), and the enzymes of the ascorbate–glutathione cycle, besides the ascorbate and glutathione contents, showed that As accumulation provoked an overall significant increase of most of them, but with different profiles depending on the plant organ, either root or shoot. Among the seven identified POD isozymes, the induction of the POD-3 in shoots under As stress could help to maintain the hydrogen peroxide (H2O2) redox homeostasis and compensate the loss of the ascorbate peroxidase (APX) activity in both roots and shoots. Lipid peroxidation was slightly increased in roots and shoots from As-treated plants. The H2O2 and NO contents were enhanced in roots and shoots against arsenic stress. In spite of the increase of most antioxidative systems, a mild oxidative stress situation appears to be consolidated overall, since the growth parameters and those from the oxidative damage could not be totally counteracted. In these conditions, the higher levels of H2O2 and NO suggest that signaling events are simultaneously occurring in the whole plant.

Reactive oxygen species induced by heat stress during grain filling of rice ( Oryza sativa L.) are involved in occurrence of grain chalkiness

2017 ◽  
Vol 216 ◽  
pp. 52-57 ◽  
Author(s):  
Chetphilin Suriyasak ◽  
Keisuke Harano ◽  
Koichiro Tanamachi ◽  
Kazuhiro Matsuo ◽  
Aina Tamada ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Oryza Sativa ◽  
Heat Stress ◽  
Oryza Sativa L ◽  
Reactive Oxygen ◽  
Grain Filling ◽  
Oxygen Species ◽  
Grain Chalkiness

Hygromycin B-induced cell death is partly mediated by reactive oxygen species in rice (Oryza sativa L.)

2015 ◽  
Vol 89 (6) ◽  
pp. 577-588 ◽  
Author(s):  
Hui-Min Oung ◽  
Ke-Chun Lin ◽  
Tsung-Meng Wu ◽  
Nulu Naga Prafulla Chandrika ◽  
Chwan-Yang Hong
Keyword(s):  
Reactive Oxygen Species ◽  
Cell Death ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Reactive Oxygen ◽  
Hygromycin B ◽  
Oxygen Species

Detection of Reactive Oxygen Species in Oryza sativa L. (Rice)

BIO-PROTOCOL ◽  
2016 ◽  
Vol 6 (24) ◽  
Author(s):  
Navdeep Kaur ◽  
Isha Sharma ◽  
Kamal Kirat ◽  
Pratap Pati
Keyword(s):  
Reactive Oxygen Species ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Reactive Oxygen ◽  
Oxygen Species

Scavenging of reactive oxygen species in NaCl-stressed rice (Oryza sativa L.)—differential response in salt-tolerant and sensitive varieties

Plant Science ◽  
2003 ◽  
Vol 165 (6) ◽  
pp. 1411-1418 ◽  
Author(s):  
Hema Vaidyanathan ◽  
Pattathil Sivakumar ◽  
Romit Chakrabarty ◽  
George Thomas
Keyword(s):  
Reactive Oxygen Species ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Reactive Oxygen ◽  
Differential Response ◽  
Oxygen Species ◽  
Salt Tolerant

OsMIOX, a myo-inositol oxygenase gene, improves drought tolerance through scavenging of reactive oxygen species in rice (Oryza sativa L.)

Plant Science ◽  
2012 ◽  
Vol 196 ◽  
pp. 143-151 ◽  
Author(s):  
Junzhi Duan ◽  
Minghui Zhang ◽  
Hongliang Zhang ◽  
Haiyan Xiong ◽  
Pengli Liu ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Oryza Sativa ◽  
Drought Tolerance ◽  
Oryza Sativa L ◽  
Reactive Oxygen ◽  
Oxygen Species
Sign in / Sign up

Export Citation Format

Share Document