scholarly journals Effects of regionally applied heating on the respiration of wild type and transgenic soybean (Glycine max) plants grown under ambient and elevated CO2 environments

2017 ◽  
Vol 16 (2) ◽  
pp. 65-86
Author(s):  
Collins Ogbaga Chukwuma
Keyword(s):  
Glycine Max ◽  
Elevated Co2 ◽  
Wild Type ◽  
Transgenic Soybean

scholarly journals Effect of Drought Stress at Supraoptimal Temperature on Polyamine Concentrations in Transgenic Soybean with Increased Proline Levels

2006 ◽  
Vol 61 (11-12) ◽  
pp. 833-839 ◽  
Author(s):  
Livia Simon-Sarkadi ◽  
Gábor Kocsy ◽  
Ágnes Várhegyi ◽  
Gábor Galiba ◽  
Jacoba A. de Ronde
Keyword(s):  
Glycine Max ◽  
Drought Stress ◽  
Transgenic Plants ◽  
Genetic Manipulation ◽  
Free Proline ◽  
Proline Biosynthesis ◽  
Wild Type ◽  
Transgenic Soybean

Abstract The effect of drought stress at supraoptimal temperature on free proline and polyamine levels was compared in wild type and transgenic soybean (Glycine max cv. Ibis) plants having increased proline levels. Since glutamate and arginine are precursors of both proline and polyamines, it was assumed that the genetic manipulation of proline levels would also affect the polyamine levels. The proline and spermine concentrations increased, while the putrescine concentration generally decreased or did not change after the treatments in both genotypes. Following drought higher proline and lower spermine levels were detected in the transgenic plants compared to the wild type ones, which could be explained by the increased use of their common precursors for proline biosynthesis in the transgenic plants.

scholarly journals Genetic background and environmental conditions drive metabolic variation in wild type and transgenic soybean (Glycine max) seeds

2016 ◽  
Vol 39 (8) ◽  
pp. 1805-1817 ◽  
Author(s):  
Hagai Cohen ◽  
Ofer M. Shir ◽  
Yang Yu ◽  
Wensheng Hou ◽  
Shi Sun ◽  
...  
Keyword(s):  
Glycine Max ◽  
Environmental Conditions ◽  
Genetic Background ◽  
Wild Type ◽  
Transgenic Soybean ◽  
Metabolic Variation

A meta-analysis of elevated [CO2 ] effects on soybean (Glycine max ) physiology, growth and yield

2002 ◽  
Vol 8 (8) ◽  
pp. 695-709 ◽  
Author(s):  
Elizabeth A. Ainsworth ◽  
Phillip A. Davey ◽  
Carl J. Bernacchi ◽  
Orla C. Dermody ◽  
Emily A. Heaton ◽  
...  
Keyword(s):  
Glycine Max ◽  
Elevated Co2 ◽  
Meta Analysis ◽  
Growth And Yield ◽  
Co2 Effects

Differential responses of the sunn4 and rdn1-1 super-nodulation mutants of Medicago truncatula to elevated atmospheric CO2

2021 ◽  
Author(s):  
Yunfa Qiao ◽  
Shujie Miao ◽  
Jian Jin ◽  
Ulrike Mathesius ◽  
Caixian Tang
Keyword(s):  
Nitrogen Fixation ◽  
Elevated Co2 ◽  
Medicago Truncatula ◽  
N2 Fixation ◽  
Sink Strength ◽  
Wild Type ◽  
Total N ◽  
Autoregulation Of Nodulation ◽  
Nodulation Mutants ◽  
Fixation Capacity

Abstract Background and Aims Nitrogen fixation in legumes requires tight control of carbon and nitrogen balance. Thus, legumes control nodule numbers via an autoregulation mechanism. ‘Autoregulation of nodulation’ mutants super-nodulate and are thought to be carbon-limited due to the high carbon-sink strength of excessive nodules. This study aimed to examine the effect of increasing carbon supply on the performance of super-nodulation mutants. Methods We compared the responses of Medicago truncatula super-nodulation mutants (sunn-4 and rdn1-1) and wild type to five CO2 levels (300-850 μmol mol -1). Nodule formation and N2 fixation were assessed in soil-grown plants at 18 and 42 days after sowing. Key results Shoot and root biomass, nodule number and biomass, nitrogenase activity and fixed-N per plant of all genotypes increased with increasing CO2 concentration and reached the maximum around 700 μmol mol -1. While the sunn-4 mutant showed strong growth-retardation compared to wild-type plants, elevated CO2 increased shoot biomass and total N content of rdn1-1 mutant up to two-fold. This was accompanied by a four-fold increase in nitrogen fixation capacity in the rdn1-1 mutant. Conclusions These results suggest that the super-nodulation phenotype per se did not limit growth. The additional nitrogen fixation capacity of the rdn1-1 mutant may enhance the benefit of elevated CO2 on plant growth and N2 fixation.

Inoculation with an enhanced N2-fixingBradyrhizobium japonicumstrain (USDA110) does not alter soybean (Glycine max Merr.) response to elevated [CO2]

2015 ◽  
Vol 38 (12) ◽  
pp. 2589-2602 ◽  
Author(s):  
Álvaro Sanz-sáez ◽  
Katy D. Heath ◽  
Patricia V. Burke ◽  
Elizabeth A. Ainsworth
Keyword(s):  
Glycine Max ◽  
Elevated Co2

Overexpressing GmCHI1A increases the isoflavone content of transgenic soybean (Glycine max (L.) Merr.) seeds

2020 ◽  
Vol 56 (6) ◽  
pp. 842-850
Author(s):  
Huu Quan Nguyen ◽  
Thi Hong Trang Le ◽  
Thi Ngoc Lan Nguyen ◽  
Thu Giang Nguyen ◽  
Danh Thuong Sy ◽  
...  
Keyword(s):  
Glycine Max ◽  
Transgenic Soybean ◽  
Isoflavone Content ◽  
Glycine Max L

scholarly journals Nitrate Reductases from Wild-Type and nr1-Mutant Soybean (Glycine max [L.] Merr.) Leaves

1985 ◽  
Vol 78 (1) ◽  
pp. 80-84 ◽  
Author(s):  
Luc Streit ◽  
Richard S. Nelson ◽  
James E. Harper
Keyword(s):  
Glycine Max ◽  
Wild Type ◽  
Glycine Max L ◽  
Nitrate Reductases

scholarly journals Bradyrhizobium elkanii rtxC Gene Is Required for Expression of Symbiotic Phenotypes in the Final Step of Rhizobitoxine Biosynthesis

2004 ◽  
Vol 70 (1) ◽  
pp. 535-541 ◽  
Author(s):  
Shin Okazaki ◽  
Masayuki Sugawara ◽  
Kiwamu Minamisawa
Keyword(s):  
Glycine Max ◽  
Type Strain ◽  
Wild Type Strain ◽  
Null Mutant ◽  
Wild Type ◽  
In Planta ◽  
Distinct Effect ◽  
Nodulation Competitiveness ◽  
Macroptilium Atropurpureum ◽  
Bradyrhizobium Elkanii

ABSTRACT We disrupted the rtxC gene on the chromosome of Bradyrhizobium elkanii USDA94 by insertion of a nonpolar aph cartridge. The rtxC mutant, designated ΔrtxC, produced serinol and dihydrorhizobitoxine but no rhizobitoxine, both in culture and in planta. The introduction of cosmids harboring the rtxC gene into the ΔrtxC mutant complemented rhizobitoxine production, suggesting that rtxC is involved in the final step of rhizobitoxine biosynthesis in B. elkanii USDA94. Glycine max cv. Lee inoculated with ΔrtxC or with a null mutant, Δrtx::Ω1, showed no foliar chlorosis, whereas the wild-type strain USDA94 caused severe foliar chlorosis. The two mutants showed significantly less nodulation competitiveness than the wild-type strain on Macroptilium atropurpureum. These results indicate that dihydrorhizobitoxine, the immediate precursor of the oxidative form of rhizobitoxine, has no distinct effect on nodulation phenotype in these legumes. Thus, desaturation of dihydrorhizobitoxine by rtxC-encoded protein is essential for the bacterium to show rhizobitoxine phenotypes in planta. In addition, complementation analysis of rtxC by cosmids differing in rtxC transcription levels suggested that rhizobitoxine production correlates with the amount of rtxC transcript.

High-level Expression of Maize γ-zein Protein in Transgenic Soybean (Glycine max)

2005 ◽  
Vol 16 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Zhiwu Li ◽  
Sarah Meyer ◽  
Juliane S. Essig ◽  
Ying Liu ◽  
Melissa A. Schapaugh ◽  
...  
Keyword(s):  
Glycine Max ◽  
Transgenic Soybean ◽  
High Level Expression ◽  
Zein Protein ◽  
High Level
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