Protein dynamics during seed germination under copper stress in Arabidopsis over-expressing Potentilla superoxide dismutase

2011 ◽  
Vol 125 (1) ◽  
pp. 165-172 ◽  
Author(s):  
Tejpal Gill ◽  
Vivek Dogra ◽  
Sanjay Kumar ◽  
Paramvir Singh Ahuja ◽  
Yelam Sreenivasulu
Keyword(s):  
Superoxide Dismutase ◽  
Seed Germination ◽  
Protein Dynamics ◽  
Copper Stress

scholarly journals Pretreatment with H2O2 Alleviates the Negative Impacts of NaCl Stress on Seed Germination of Tartary Buckwheat (Fagopyrum tataricum)

Plants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1784
Author(s):  
Xin Yao ◽  
Meiliang Zhou ◽  
Jingjun Ruan ◽  
Yan Peng ◽  
Hao Yang ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Salt Tolerance ◽  
Seed Germination ◽  
Superoxide Dismutase Activity ◽  
Stress Factors ◽  
Tartary Buckwheat ◽  
Tolerance Index ◽  
Fagopyrum Tataricum ◽  
Germination Parameters ◽  
H2o2 Pretreatment

Soil salinization is one of the main abiotic stress factors impacting the growth of crops and the agricultural industry today. Thus, we aimed to investigate the effects of H2O2 pretreatment on seed germination in Tartary buckwheat (Fagopyrum tataricum) seeds under salt stress and to evaluate this species’ salt tolerance. Through the preliminary experiment, this study used 50 mmol L−1 NaCl solution to induce seed stress. After soaking for 12 h in different H2O2 concentrations, seeds were laid in Petri dishes with 50 mmol L−1 NaCl for seven days and the germination parameters and physiological indicators were measured to screen the optimal H2O2 pretreatment concentration and the salt tolerance index. Our results indicated that pretreatment with 5–10 mmol L−1 H2O2 was most effective in alleviating NaCl’s impacts on the seeds’ germination parameters. Furthermore, the growth and material accumulation of seedlings was promoted; catalase, superoxide dismutase activity, and proline content were enhanced; and malondialdehyde content was reduced. Principal component analysis and stepwise regression revealed six key indicators that had a significant impact on the salt tolerance characteristics of F. tataricum, namely, germination potential, shoot fresh weight, root surface area, root average diameter, catalase activity, and superoxide dismutase activity.

The redox state and activity of superoxide dismutase classes in Arabidopsis thaliana under cadmium or copper stress

Chemosphere ◽  
2007 ◽  
Vol 67 (1) ◽  
pp. 188-193 ◽  
Author(s):  
Maria Drążkiewicz ◽  
Ewa Skórzyńska-Polit ◽  
Zbigniew Krupa
Keyword(s):  
Arabidopsis Thaliana ◽  
Superoxide Dismutase ◽  
Redox State ◽  
Copper Stress

Hydrogen Sulfide Promotes Wheat Seed Germination and Alleviates Oxidative Damage against Copper Stress

2008 ◽  
Vol 50 (12) ◽  
pp. 1518-1529 ◽  
Author(s):  
Hua Zhang ◽  
Lan-Ying Hu ◽  
Kang-Di Hu ◽  
Yun-Dong He ◽  
Song-Hua Wang ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Seed Germination ◽  
Oxidative Damage ◽  
Copper Stress ◽  
Wheat Seed

Role of the ubiquitin-proteasome pathway and some peptidases during seed germination and copper stress in bean cotyledons

2014 ◽  
Vol 76 ◽  
pp. 77-85 ◽  
Author(s):  
Inès Karmous ◽  
Abdelilah Chaoui ◽  
Khadija Jaouani ◽  
David Sheehan ◽  
Ezzedine El Ferjani ◽  
...  
Keyword(s):  
Seed Germination ◽  
Copper Stress ◽  
Ubiquitin Proteasome Pathway ◽  
Ubiquitin Proteasome ◽  
Proteasome Pathway

scholarly journals Exogenous Gibberellin Promotes the Germination of Phellodendron Chinense Schneid Seeds by Regulating the Expression of Phytohormone Related Genes and Anabolic Proteins

2020 ◽  
Author(s):  
Wenkai SUN ◽  
Xuejing ZHANG ◽  
Yahan WANG ◽  
Huanhuan LI ◽  
Wende YAN ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Seed Germination ◽  
Rna Polymerase ◽  
Coenzyme A ◽  
Germination Rate ◽  
Chinese Herb ◽  
Histone H1 ◽  
Expression Level ◽  
Expression Levels ◽  
Protein Levels

Abstract Background: Phellodendron chinense Schneid is an important Chinese herb that contains berberine, phellodendrine, palmatine, and medicinal compounds. The germination rate of Phellodendron chinense Schneid seeds is lower after storage, and the exogenous gibberellin3 (GA3) hormone promotes seed germination, but the mechanism is not cleared. Results: Exogenous GA3 hormone promoted germination of Phellodendron chinense Schneid seeds, elevated germination rates. It also increased the levels of activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT). Moreover, it enhanced the contents of berberine and endogenous GA3, and increased the expression levels of Pc(S)-GA2ox, Pc(S)-GA3ox, and Pc(S)-THBO. However, it reduced the expression level of Pc(S)-ABI5. Furthermore, exogenous GA3 up-regulated the protein levels of DNA guides RNA polymerase β'-subunits, Coffee coenzyme A oxymethyl transferase, and Histone H1. Conclusion: These findings indicated that exogenous GA3 promoted germination of Phellodendron chinense Schneid seeds by regulating the expression levels of phytohormone related genes and anabolic proteins.

Use of polymeric nanoparticles to improve seed germination and plant growth under copper stress

2020 ◽  
Vol 745 ◽  
pp. 141055
Author(s):  
Xiaoping Xin ◽  
Fengliang Zhao ◽  
Julia Y. Rho ◽  
Sofia L. Goodrich ◽  
Brent S. Sumerlin ◽  
...  
Keyword(s):  
Seed Germination ◽  
Plant Growth ◽  
Polymeric Nanoparticles ◽  
Copper Stress ◽  
Improve Seed Germination

scholarly journals Seed priming with salicylic acid potentiates water restriction-induced effects in tomato seed germination and early seedling growth

2020 ◽  
Vol 42 ◽  
Author(s):  
Yutcelia Carolina Galviz-Fajardo ◽  
Gabriel Streck Bortolin ◽  
Sidnei Deuner ◽  
Luciano do Amarante ◽  
Fernanda Reolon ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Salicylic Acid ◽  
Seed Germination ◽  
Seedling Growth ◽  
Seed Priming ◽  
Water Restriction ◽  
Tomato Seed ◽  
Early Seedling Growth ◽  
Germination Speed ◽  
Early Seedling

Abstract: Seed priming with salicylic acid (SA) has been described as a method with potential to improve seed germination under unfavorable conditions. The present study aimed to evaluate the ability of seed priming with SA to attenuate the impact of water restriction during germination and early seedling growth of tomato. Seeds were subjected to different concentrations of SA (0, 25 and 50 µM) and sowed on substrates at different percentages of the water holding capacity (20, 30, 40 and 100%). The following variables were evaluated: germination, first count of germination, germination speed index, shoots/root length and dry mass, superoxide dismutase, ascorbate peroxidase and catalase activities, contents of hydrogen peroxide and of malondialdehyde. Water restriction significantly decreased the variables related to germination and seedling performance. Despite increasing germination speed and seedling development when combined with well-irrigated conditions, priming with SA negatively impacted those characteristics under water deficit conditions. That was through increases in superoxide dismutase activity and H2O2 accumulation. Thus, it was concluded that seed priming with SA does not improve tomato seed germination and early seedling growth under water deficit.

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