scholarly journals Regulation of the Redox Environment

Author(s):  
Edgar Cano-Europa ◽  
Vanessa Blas-Valdivia ◽  
Margarita Franco-Colin ◽  
Rocio Ortiz-Butron
Keyword(s):  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Manish Pandey ◽  
Radha Krishna Paladi ◽  
Ashish Kumar Srivastava ◽  
Penna Suprasanna

AbstractPlant bioregulators (PBRs) represent low-cost chemicals for boosting plant defense, especially under stress conditions. In the present study, redox based PBRs such as thiourea (TU; a non-physiological thiol-based ROS scavenger) and hydrogen peroxide (H2O2; a prevalent biological ROS) were assessed for their ability to mitigate NaCl stress in rice variety IR 64. Despite their contrasting redox chemistry, TU or H2O2 supplementation under NaCl [NaCl + TU (NT) or NaCl + H2O2 (NH)] generated a reducing redox environment in planta, which improved the plant growth compared with those of NaCl alone treatment. This was concomitant with better K+ retention and upregulated expression of NaCl defense related genes including HAK21, LEA1, TSPO and EN20 in both NT and NH treated seedlings. Under field conditions, foliar applications of TU and H2O2, at vegetative growth, pre-flowering and grain filling stages, increased growth and yield attributes under both control and NaCl stress conditions. Principal component analysis revealed glutathione reductase dependent reduced ROS accumulation in source (flag leaves) and sucrose synthase mediated sucrose catabolism in sink (developing inflorescence), as the key variables associated with NT and NH mediated effects, respectively. In addition, photosystem-II efficiency, K+ retention and source-sink relationship were also improved in TU and H2O2 treated plants. Taken together, our study highlights that reducing redox environment acts as a central regulator of plant’s tolerance responses to salt stress. In addition, TU and H2O2 are proposed as potential redox-based PBRs for boosting rice productivity under the realistic field conditions.



Author(s):  
Lais Cavalieri Paredes ◽  
Rebeca Bosso dos Santos Luz ◽  
Ollavo Nogueira Tozzi ◽  
Lucicleide Ângelo Silva Jungles de Carvalho ◽  
Sabrina Loise de Morais Calado ◽  
...  


2015 ◽  
Vol 83 ◽  
pp. 331-340 ◽  
Author(s):  
Éva Margittai ◽  
Balázs Enyedi ◽  
Miklós Csala ◽  
Miklós Geiszt ◽  
Gábor Bánhegyi


Cell ◽  
2007 ◽  
Vol 129 (2) ◽  
pp. 333-344 ◽  
Author(s):  
Carolyn S. Sevier ◽  
Hongjing Qu ◽  
Nimrod Heldman ◽  
Einav Gross ◽  
Deborah Fass ◽  
...  


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Diana C. Rodriguez Camargo ◽  
Konstantinos Tripsianes ◽  
Katalin Buday ◽  
Andras Franko ◽  
Christoph Göbl ◽  
...  


2021 ◽  
Vol 82 (3) ◽  
pp. 204-206
Author(s):  
Aleksey Benderev ◽  
Nikolay Stoyanov ◽  
Stefan Dimovski ◽  
Svetlana Bratkova ◽  
Boyka Mihaylova

The presented study is aimed towards determining the reasons for manganese pollution of drinking water extracted from the terrace of Vacha River. The results show that this is due to the seepage of from the artificial lake, formed after the construction of a small hydropower plant. Another possible reason is the natural accumulation in the upper parts of the river terrace of poorly soluble in water manganese compounds that turn into soluble ones as a result of changes in the redox environment, which take place in the conditions of very intensive groundwater extraction.



Biochemistry ◽  
2005 ◽  
Vol 44 (39) ◽  
pp. 13071-13081 ◽  
Author(s):  
Tatyana V. Knyushko ◽  
Victor S. Sharov ◽  
Todd D. Williams ◽  
Christian Schöneich ◽  
Diana J. Bigelow


2006 ◽  
Vol 122 (1-4) ◽  
pp. 228-236 ◽  
Author(s):  
C. L. Limoli ◽  
E. Giedzinski ◽  
J. Baure ◽  
S. R. Doctrow ◽  
R. Rola ◽  
...  


2007 ◽  
Vol 31 (6) ◽  
pp. 546-553 ◽  
Author(s):  
J HANSEN ◽  
M KLASS ◽  
C HARRIS ◽  
M CSETE
Keyword(s):  


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