scholarly journals Response of soybean (Glycine max) to molybdenum and iron spray under well-watered and water deficit conditions

2016 ◽  
Vol 4 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Ayoub Heidarzade ◽  
◽  
Mohammadali Esmaeili ◽  
Mohammadali Bahmanyar ◽  
Rahmat Abbasi ◽  
...  
Keyword(s):  
Glycine Max ◽  
Water Deficit

scholarly journals Ectopic Expression of Glycine max GmNAC109 Enhances Drought Tolerance and ABA Sensitivity in Arabidopsis

Biomolecules ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 714 ◽  
Author(s):  
Nguyen ◽  
Hoang ◽  
Nguyen ◽  
Binh ◽  
Watanabe ◽  
...  
Keyword(s):  
Glycine Max ◽  
Drought Tolerance ◽  
Water Deficit ◽  
Ectopic Expression ◽  
Wild Type ◽  
Aba Sensitivity ◽  
Leaf Tissues ◽  
Early Seedling ◽  
Early Seedling Development ◽  
Higher Sensitivity

The NAC (NAM, ATAF1/2, CUC2) transcription factors are widely known for their various functions in plant development and stress tolerance. Previous studies have demonstrated that genetic engineering can be applied to enhance drought tolerance via overexpression/ectopic expression of NAC genes. In the present study, the dehydration- and drought-inducible GmNAC109 from Glycine max was ectopically expressed in Arabidopsis (GmNAC109-EX) plants to study its biological functions in mediating plant adaptation to water deficit conditions. Results revealed an improved drought tolerance in the transgenic plants, which displayed greater recovery rates by 20% to 54% than did the wild-type plants. In support of this finding, GmNAC109-EX plants exhibited lower water loss rates and decreased endogenous hydrogen peroxide production in leaf tissues under drought, as well as higher sensitivity to exogenous abscisic acid (ABA) treatment at germination and early seedling development stages. In addition, analyses of antioxidant enzymes indicated that GmNAC109-EX plants possessed stronger activities of superoxide dismutase and catalase under drought stress. These results together demonstrated that GmNAC109 acts as a positive transcriptional regulator in the ABA-signaling pathway, enabling plants to cope with adverse water deficit conditions.

scholarly journals Water Deficit Elicits a Transcriptional Response of Genes Governing d-pinitol Biosynthesis in Soybean (Glycine max)

2019 ◽  
Vol 20 (10) ◽  
pp. 2411 ◽  
Author(s):  
Kathryn Dumschott ◽  
Julie Dechorgnat ◽  
Andrew Merchant
Keyword(s):  
Glycine Max ◽  
Water Deficit ◽  
Transcriptional Response ◽  
Soil Drought ◽  
Plant Tissues ◽  
Transcript Expression ◽  
Sugar Alcohol ◽  
In Planta ◽  
Methyl Transferase ◽  
Inositol 1

d-pinitol is the most commonly accumulated sugar alcohol in the Leguminosae family and has been observed to increase significantly in response to abiotic stress. While previous studies have identified genes involved in d-pinitol synthesis, no study has investigated transcript expression in planta. The present study quantified the expression of several genes involved in d-pinitol synthesis in different plant tissues and investigated the accumulation of d-pinitol, myo-inositol and other metabolites in response to a progressive soil drought in soybean (Glycine max). Expression of myo-inositol 1-phosphate synthase (INPS), the gene responsible for the conversion of glucose-6-phosphate to myo-inositol-1-phosphate, was significantly up regulated in response to a water deficit for the first two sampling weeks. Expression of myo-inositol O-methyl transferase (IMT1), the gene responsible for the conversion of myo-inositol into d-ononitol was only up regulated in stems at sampling week 3. Assessment of metabolites showed significant changes in their concentration in leaves and stems. d-Pinitol concentration was significantly higher in all organs sampled from water deficit plants for all three sampling weeks. In contrast, myo-inositol, had significantly lower concentrations in leaf samples despite up regulation of INPS suggesting the transcriptionally regulated flux of carbon through the myo-inositol pool is important during water deficit.

Response of soybean {Glycine max (L.) Merr.} under chronic water deficit to LCO application during flowering and pod filling

2005 ◽  
Vol 54 (1) ◽  
pp. 15-30 ◽  
Author(s):  
S. Atti ◽  
R. Bonnell ◽  
S. Prasher ◽  
D. L. Smith
Keyword(s):  
Glycine Max ◽  
Water Deficit ◽  
Glycine Max L
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