scholarly journals Tropospheric ozone rapidly decreases root growth by altering carbon metabolism and detoxification capability in growing soybean roots

2021 ◽  
Vol 766 ◽  
pp. 144292
Author(s):  
Ripley H. Tisdale ◽  
Richard W. Zobel ◽  
Kent O. Burkey
Keyword(s):  
Root Growth ◽  
Carbon Metabolism ◽  
Tropospheric Ozone ◽  
Soybean Roots

scholarly journals Erratum to: Overexpression of transcription factor ZmPTF1 improves low phosphate tolerance of maize by regulating carbon metabolism and root growth

Planta ◽  
2011 ◽  
Vol 233 (6) ◽  
pp. 1145-1145 ◽  
Author(s):  
Zhaoxia Li ◽  
Qiang Gao ◽  
Yazheng Liu ◽  
Chunmei He ◽  
Xinrui Zhang ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Root Growth ◽  
Carbon Metabolism

Overexpression of transcription factor ZmPTF1 improves low phosphate tolerance of maize by regulating carbon metabolism and root growth

Planta ◽  
2011 ◽  
Vol 233 (6) ◽  
pp. 1129-1143 ◽  
Author(s):  
Zhaoxia Li ◽  
Qiang Gao ◽  
Yazheng Liu ◽  
Chunmei He ◽  
Xinrui Zhang ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Root Growth ◽  
Carbon Metabolism

scholarly journals Root growth and physiology of potted and field-grown trembling aspen exposed to tropospheric ozone

1996 ◽  
Vol 16 (1-2) ◽  
pp. 145-152 ◽  
Author(s):  
M. D. Coleman ◽  
R. E. Dickson ◽  
J. G. Isebrands ◽  
D. F. Karnosky
Keyword(s):  
Root Growth ◽  
Tropospheric Ozone ◽  
Trembling Aspen

scholarly journals Peroxidase and lipid peroxidation of soybean roots in response to p-coumaric and p-hydroxybenzoic acids

2003 ◽  
Vol 46 (2) ◽  
pp. 193-198 ◽  
Author(s):  
Patrícia Minatovicz F. Doblinski ◽  
Maria de Lourdes L. Ferrarese ◽  
Domitila A. Huber ◽  
Carlos Alberto Scapim ◽  
Alessandro de Lucca e Braccini ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Cell Wall ◽  
Glycine Max ◽  
Root Growth ◽  
Root Length ◽  
Dry Weight ◽  
Fresh Weight ◽  
Glycine Max L ◽  
Hydroxybenzoic Acids ◽  
Soybean Roots

The scope of the present study was to investigate how the p-coumaric (p-CA) and p-hydroxybenzoic (p-HD) acids affect the peroxidase (POD, EC 1.11.1.7) activity, the lipid peroxidation (LP) and the root growth of soybean (Glycine max (L.) Merr.). Three-day-old seedlings were cultivated in nutrient solution containing p-CA or p-HD (0.1 to 1 mM) for 48 h. After uptake, both compounds (at 0.5 and 1 mM) decreased root length (RL), fresh weight (FW) and dry weight (DW) while increased soluble POD activity, cell wall (CW)-bound POD activity (with 1 mM p-CA and 0.5 mM p-HD) and LP.

scholarly journals The critical period of aluminum stress on soybean root growth

2020 ◽  
Vol 1 (1) ◽  
pp. 21
Author(s):  
Danner Sagala ◽  
Eka Suzanna ◽  
Prihanani Prihanani
Keyword(s):  
Root Growth ◽  
Critical Threshold ◽  
Aluminum Stress ◽  
Considerable Effort ◽  
Aluminum Exposure ◽  
Soybean Root ◽  
Soybean Seedlings ◽  
Soybean Roots ◽  
Tidal Swamps ◽  
The Impact

Aluminum is prevalent in soils of tidal swamps. Soybean is known to be very sensitive to aluminum stress and so when tidal swamps are converted to soybean cropland, considerable effort and expense are required to overcome Al toxicity in soybean roots. It is therefore necessary to determine at what time in early development soybeans can best endure aluminum stress and identify aluminum-tolerant cultivars. This study was conducted by testing the impact of aluminum exposure on three soybean cultivars (Tanggamus, Karasumame, and M652) (relative to no-exposure controls) at four time periods at 10, 20, and 30 days after planting. No significant effect of aluminum on root growth in the first five days after exposure was observed, but the toxic effects became evident after soybeans had been exposed to aluminum for 10 days. Soybean seedlings that experienced aluminum stress earliest (at 10 days after planting) were more negatively impacted by Al exposure than seedlings exposed later (e.g., 30 days after planting). Root growths of the three cultivars we tested in this study were all detrimentally impacted by aluminum exposure. However, the M652 cultivar was the most sensitive to aluminum exposure. We conclude that the critical threshold period for soybean root growth to succumb to aluminum stress is within the first 30 days after planting, whereas the tolerance to aluminum stress occurs only during the first 10 days of exposure.

scholarly journals Soybean Root Growth in Response to Chemical, Physical, and Biological Soil Variations

2021 ◽  
Vol 12 ◽  
Author(s):  
Mariele Müller ◽  
Julia Renata Schneider ◽  
Vilson Antônio Klein ◽  
Eliardo da Silva ◽  
José Pereira da Silva Júnior ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Root Growth ◽  
Negative Impact ◽  
Soil Depth ◽  
Soil Surface ◽  
Total Porosity ◽  
Soil Layers ◽  
Soybean Roots ◽  
Biological Attributes ◽  
High Concentrations

Environmental conditions affect crop yield, and water deficit has been highlighted by the negative impact on soybean grain production. Radicial growth in greater volume and depth can be an alternative to minimize losses caused by a lack of water. Therefore, knowledge of how soybean roots behave before the chemical, physical, and biological attributes of the soil can help establish managements that benefit in-depth root growth. The objective was to evaluate the growth of soybean roots in response to chemical, physical, and biological variations in the soil, in different soil locations and depths. Six experiments were conducted in different locations. Soil samples were collected every 5 cm of soil up to 60 cm of soil depth for chemical, physical, and biological analysis. The roots were collected every 5 cm deep up to 45 cm deep from the ground. The six sites presented unsatisfactory values of pH and organic matter, and presented phosphorus, potassium, and calcium at high concentrations in the first centimeters of soil depth. The total porosity of the soil was above 0.50 m3 m−3, but the proportion of the volume of macropores, micropores, and cryptopores resulted in soils with resistance to penetration to the roots. Microbial biomass was higher on the soil surface when compared to deeper soil layers, however, the metabolic quotient was higher in soil depth, showing that microorganisms in depth have low ability to incorporate carbon into microbial biomass. Root growth occurred in a greater proportion in the first centimeters of soil-depth, possibly because the soil attributes that favor the root growth is concentrated on the soil surface.

scholarly journals Naringenin inhibits the growth and stimulates the lignification of soybean root

2010 ◽  
Vol 53 (3) ◽  
pp. 533-542 ◽  
Author(s):  
Graciene de Souza Bido ◽  
Maria de Lourdes Lucio Ferrarese ◽  
Rogério Marchiosi ◽  
Osvaldo Ferrarese-Filho
Keyword(s):  
Cell Wall ◽  
Root Growth ◽  
Phenylalanine Ammonia Lyase ◽  
Flavonoid Biosynthesis ◽  
Inhibitory Effects ◽  
Solution Ph ◽  
Glycine Max L ◽  
Half Strength ◽  
Soybean Roots ◽  
Hoagland Nutrient Solution

The flavanone naringenin, an intermediate in flavonoid biosynthesis, was tested for its effect on root growth, phenylalanine ammonia-lyase (PAL) and peroxidase (POD) activities, as well as phenolic compounds and lignin contents in soybean (Glycine max L. Merrill) seedlings. Three-day-old seedlings were cultivated in half-strength Hoagland nutrient solution (pH 6.0), with or without 0.1 to 0.4 mM naringenin in a growth chamber (25°C, 12-h photoperiod, irradiance of 280 µmol m-2 s-1) for 24 h. Inhibitory effects on root growth (length, weight, cell viability), PAL and soluble POD activities were detected after naringenin treatments. These effects were associated with stimulatory activity of the cell wall-bound POD followed by an increase in the lignin contents, suggesting that naringenin-induced inhibition in soybean roots could be due to the lignification process.

scholarly journals Root growth of soybean cultivars under different water availability conditions

2017 ◽  
Vol 38 (2) ◽  
pp. 715 ◽  
Author(s):  
Julio Cezar Franchini ◽  
Alvadi Antonio Balbinot Junior ◽  
Henrique Debiasi ◽  
Alexandre Lima Nepomuceno
Keyword(s):  
Root Growth ◽  
Water Deficit ◽  
Water Availability ◽  
Root Length ◽  
Breeding Programs ◽  
Vegetative Period ◽  
Soybean Root ◽  
Soybean Cultivars ◽  
Soybean Roots ◽  
Length And Area

Vigorous growth of soybean root system is a desired trait in breeding programs. However, few studies have evaluated this feature under field conditions. The aim of this research was to evaluate root growth of eight soybean cultivars under different water availability conditions. The experiment was carried out in Londrina, Paraná state, Brazil, during two growing seasons - with and without water deficit during the vegetative period. Soybean roots were sampled at flowering and assessed for dry matter yield, area and length at 0-0.25; 0.25-0.50; 0.50-0.75 and 0.75-1.00 m depth ranges. On average, root length and area of the cultivars Embrapa 48 and BRS 284 under water deficit were 66% and 40% larger than the others at 0.25-0.50 and 0.50-0.75 m layers, respectively. Under suitable water supply, BRS 282 showed the highest root length and area. Apart from the cultivars Embrapa 48, BRS 284, and BRS 255RR, soybean root growth was mostly lower under water deficit throughout the vegetative stage, which might been due to a higher soil resistance to root penetration, resulting from low soil water content. Drought increased the proportion of soybean roots at subsoil layers, mainly for Embrapa 48 and BRS 284. The cultivars Embrapa 48 and BRS 284 are promising to be used in breeding programs targeting superior root growth in subsoil layers.

scholarly journals Soil acidity, liming and soybean performance under no-till

2008 ◽  
Vol 65 (5) ◽  
pp. 532-540 ◽  
Author(s):  
Eduardo Fávero Caires ◽  
Gabriel Barth ◽  
Fernando José Garbuio ◽  
Susana Churka
Keyword(s):  
Root Growth ◽  
Grain Yield ◽  
Soil Acidity ◽  
Block Design ◽  
Soil Surface ◽  
Dolomitic Lime ◽  
No Till ◽  
Randomized Block Design ◽  
Soybean Roots ◽  
Lime Application

The effects of soil chemical changes on soybean root growth, mineral nutrition and grain yield, as a result of surface application of lime under no-till (NT), are still under discussion. A field trial was carried out on a loamy dystrophic Typic Hapludox at Ponta Grossa, Paraná State, Brazil, using a completely randomized block design with three replicates, in a split-plot experiment. The main plots received four dolomitic lime rates applied on the surface (0, 2, 4, and 6 Mg ha-1) in July 1993. In the subplots, two dolomitic lime rates were reapplied on the surface (0 and 3 Mg ha-1) in June 2000. After nine years, liming increased pH, exchangeable Ca2+ and reduced exchangeable Al3+ as well as soil Al3+ saturation down to a 60 cm depth. Re-liming, after two years, also provided soil acidity amelioration to a 60 cm depth. Soybean total root length per soil surface area (0-60 cm) decreased with the surface lime application under NT. The reduction in soil exchangeable Al3+ with liming did not change Al concentrations in the soybean roots and leaves. Surface-applied dolomitic lime under NT brought an increase in Ca and Mg concentrations and a decrease in the Mn level in both soybean roots and leaves. Soybean grain yield was not influenced by surface liming because of the decreased Al toxicity and because root growth was stimulated by soil acidity stress under NT.

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