Functional roles of two 14-3-3s in response to salt stress in common bean

2018 ◽  
Vol 40 (12) ◽  
Author(s):  
Xuyan Li ◽  
Guoli Gao ◽  
Yuejia Li ◽  
Weikang Sun ◽  
Xinyu He ◽  
...  
Keyword(s):  
Salt Stress ◽  
Common Bean ◽  
Functional Roles

scholarly journals Vigor and alpha-amylase activity in common bean seeds under salt stress conditions

2021 ◽  
Vol 42 (6supl2) ◽  
pp. 3633-3650
Author(s):  
Matheus Santin Padilha ◽  
◽  
Cileide Maria Medeiros Coelho ◽  
Natalia Carolina Moraes Ehrhardt-Brocardo ◽  
◽  
...  
Keyword(s):  
Salt Stress ◽  
Common Bean ◽  
Stress Condition ◽  
Amylase Activity ◽  
Reduction Rate ◽  
Stress Conditions ◽  
Alpha Amylase ◽  
Reserve Mobilization ◽  
Relationship Of ◽  
The Relationship

Seeds with high vigor have greater capacity for hydrolysis and mobilization of stored reserves, which results in the formation of vigorous seedlings, and this behavior is observed under abiotic stress conditions. This study proposes to investigate the relationship of the enzyme alpha-amylase in lots of common-bean seeds with contrasting vigor, when subjected to the absence and presence of salt stress, aiming to identify the relationship of this enzyme with the vigor of the seed lot under these conditions. Seven common-bean cultivars were used. Physiological quality was determined by germination, vigor index and seedling length. The mobilization of reserves was evaluated under absence and presence of salt stress simulated with a NaCl solution with a concentration of 50 mmol L-1. The analyzed variables regarding reserve mobilization were reserve reduction, reserve reduction rate, seedling dry weight, reserve mobilization rate, starch, starch reduction rate and alpha-amylase activity. Results showed that the stress condition negatively affected all the evaluated variables; however, the cultivars classified as having greater vigor showed better physiological performance under stress. Salt stress in common-bean seeds affects seedling performance and reduces alpha-amylase activity during germination, and high-vigor seed lots exhibited higher enzyme activity in the no-stress condition.

CmMYB1 gene clone from Cucumis melo and its functional roles under salt stress

2021 ◽  
Vol 140 (6) ◽  
pp. 1123-1135
Author(s):  
Yan Zhang ◽  
Huijun Zhang ◽  
Zuyun Dai ◽  
Yushu Yuan ◽  
Shuangqin Wei
Keyword(s):  
Salt Stress ◽  
Cucumis Melo ◽  
Gene Clone ◽  
Functional Roles

Differential Expression of Genes for Tolerance to Salt Stress in Common Bean (Phaseolus vulgaris L.)

2013 ◽  
Vol 32 (2) ◽  
pp. 318-327 ◽  
Author(s):  
Eloísa Hernández-Lucero ◽  
Aída Araceli Rodríguez-Hernández ◽  
María Azucena Ortega-Amaro ◽  
Juan Francisco Jiménez-Bremont
Keyword(s):  
Salt Stress ◽  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Differential Expression ◽  
Phaseolus Vulgaris L ◽  
Expression Of Genes ◽  
Differential Expression Of Genes

scholarly journals Contrasting Effects of NaCl and NaHCO3 Stresses on Seed Germination, Seedling Growth, Photosynthesis, and Osmoregulators of the Common Bean (Phaseolus vulgaris L.)

Agronomy ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 409
Author(s):  
Yu ◽  
Yu ◽  
Hou ◽  
Zhang ◽  
Guo ◽  
...  
Keyword(s):  
Salt Stress ◽  
Phaseolus Vulgaris ◽  
Seed Germination ◽  
Common Bean ◽  
Seedling Growth ◽  
Seedling Emergence ◽  
Soluble Sugars ◽  
Phaseolus Vulgaris L ◽  
Alkaline Salt ◽  
The Common

The common bean (Phaseolus vulgaris L.), the most important food legume for human nutrition globally, contributes greatly to the improvement of soil fertility in semi-dry lands where most of the soil is already salinized or alkalized, such as in the Songnen Plain of China. In this study, we investigated the effects of salt stress (neutral and alkaline) on the salt-tolerant common bean. Seed germination, seedling growth, photosynthesis, and osmotic adjustment were assessed. Neutral and alkaline salt growth environments were simulated using NaCl and NaHCO3, respectively. The results indicated that at ≥60 mmol·L−1, both NaCl and NaHCO3 caused significant delays in seedling emergence and decreased seedling emergence rates. NaHCO3 stress suppressed seedling survival regardless of concentration; however, only NaCl concentrations >60 mmol·L−1 had the same effect. Alkaline salt stress remarkably suppressed photosynthesis and seedling establishment. The common bean compensated for the increase in inorganic anion concentration (influx of Na+) by synthesizing more organic acids and soluble sugars. This adaptive mechanism enabled the common bean to balance the large inflow of cations for maintaining a stable cell pH environment under alkaline salt stress.

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