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

Müller, Mariele; Schneider, Julia Renata; Klein, Vilson Antônio; Silva, Eliardo da; Júnior, José Pereira da Silva; Souza, Adriano Mendonça; Chavarria, Geraldo

doi:10.3389/fpls.2021.602569

Cited by 11 publications

(6 citation statements)

References 42 publications

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“…Due to its nutritional components and pharmacological value, it is also processed into traditional Chinese health foods (Wang and Komatsu 2018). Soybean production has increased in the last 4 decades (Müller et al 2021). In 2018, approximately 80% of the world's harvested soybeans was produced in the United States (35%), Brazil (34%), and Argentina (11%), a total equivalent to nearly 350 million tons, and production continues to show steady growth (FAO 2018;Łangowski et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Physiology and metabonomics reveal differences in drought resistance among soybean varieties

Wang

et al. 2022

Bot Stud

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Background The soybean is an important food crop worldwide. Drought during the first pod stage significantly affects soybean yield, and understanding the metabolomic and physiological changes in soybeans under drought stress is crucial. This study identified the differential metabolites in initial pod stage soybean leaves under polyethylene glycol-simulated drought stress, using ultra performance liquid chromatography and tandem mass spectrometry, and the physiological indexes related to drought resistance. Results Physiologically, drought resistance also generates enzyme and antioxidant activity; levels of superoxide dismutase, peroxidase, and catalase first increased and subsequently decreased, while those of soluble sugar, soluble protein, malondialdehyde, and proline content increased in both varieties. The contents of CAT, proline and soluble sugar in Heinong 44 (HN44) were higher than those in Heinong 65 (HN65), and the contents of MDA were lower than those in HN65. In metabolomics, the OPLS-DA model was used to screen different metabolites. KEGG analysis showed that the two varieties resisted drought through different ways. Amino acid metabolism and lipid metabolism play a key role in drought resistance of the two varieties, respectively. TCA cycle was one of the core pathways of drought resistance in two varieties. Changes in the content of l-Asparagine and citric acid may be one of the reasons for the difference in drought resistance between the two varieties. Conclusions We think that the reasons of drought resistance among soybean varieties are as follows: the main metabolic pathways are different under drought stress; the contents of metabolites in these metabolic pathways are different; some physiological indexes are different, such as MDA, CAT, proline content and so on. Our study enhances the understanding of the metabolomic soybean drought stress response and provides a reference for soybean drought resistance breeding.

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Section: Introductionmentioning

confidence: 99%

Physiology and metabonomics reveal differences in drought resistance among soybean varieties

Wang

et al. 2022

Bot Stud

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“…Approximately 90% of the total number of soybean roots are located in the 0–45 cm soil layer [ 22 ]. Approximately 95% of maize roots are dispersed in the 0–60 cm soil layer, whereas less than 2% are dispersed under 80 cm [ 23 ].…”

Section: Resultsmentioning

confidence: 99%

Effects of Different Land Use Patterns on Soil Water in Loess Hilly and Gully Regions of China

Tang

Zhang

Gao

et al. 2022

Plants

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Soil water is a major barrier to ecological restoration and sustainable land use in China’s Loess Hilly Region. For the restoration of local vegetation and the optimal use of the region’s land resources, both theoretically and practically, it is essential to comprehend the soil water regimes under various land use types. The soil water content in the 0–160 cm soil profile of slope cropland, terraced field, jujube orchard, and grassland was continuously measured using EC-5 soil moisture sensors during the growing season (May–October) in the Yuanzegou catchment in the Loess Hilly Region to characterize the changes in soil water in these four typical land use types. The results showed that in both years of normal precipitation and drought, land use patterns varied in seasonal variability, water storage characteristics, and vertical distribution of soil water. In the dry year of 2015, the terraced field effectively held water. During the growing season, the 0–60 cm soil layer’s average soil water content was 2.6%, 4.2%, and 1.8% higher than the slope cropland, jujube orchard, and grassland, respectively (p < 0.05), and the 0–160 cm soil layer’s water storage was 43.90, 32.08, and 18.69 mm higher than the slope cropland, jujube orchard, and grassland, respectively. The average soil water content of the 0–60 cm soil layer in the jujube orchard was 2.9%, 3.8%, and 4.5% lower than that of slope cropland, terraced field, and grassland, respectively, during the normal precipitation year (2014) (p < 0.05). Only 35.0% of the total soil water storage was effectively stored in the 0–160 cm soil layer of the jujube orchard during the drought year. There was a significant difference in the grey relational grade between the soil water in the top layer (0–20 cm) and the soil water in the middle layer (20–100 cm) under different land use types, with the terraced field having the highest similarity degree of soil water variation trend, followed by grassland, slope cropland, and jujube orchard. Slope croplands in the study region may be converted into terraced fields to enhance the effective use of rainfall resources and encourage the expansion of ecological agriculture. Proper water management practices must be employed to reduce jujube tree water consumption and other wasteful water usage in order to guarantee the jujube orchard’s ability to expand sustainably. This would address the issue of the acute water deficit in the rain-fed jujube orchards in the Loess Hilly Region.

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“…The reason for this remains unclear. In general, nutrients such as potassium, phosphorus, calcium, zinc, and organic matter are described as determining factors for the growth of soybean roots (Müller et al 2021). However, soybean and sunflower seeds differ significantly in their composition.…”

Section: Discussionmentioning

confidence: 99%

Response of sunflower and soybean to infection with Sclerotinia sclerotiorum with addition of organic amendments

2022

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The addition of compost, green waste biochar, and wood biochar to a pathosystem consisting of Sclerotinia sclerotiorum (Lib.) de Bary and two susceptible host plants, sunflower (Helianthus annuus L.) and soybean (Glycine max L.), was investigated in a greenhouse study. Plant growth characteristics, disease incidence and the mycelial growth of S. sclerotiorum in root exudates of plants inoculated and not inoculated with this pathogen were determined. Both plants showed different responses in terms of shoot and root weight. Disease incidence in sunflower was lowest in the substrate consisting of green waste biochar and compost. The disease incidence in this substrate was approximately half that in the control treatment. In soybean, the highest disease suppression was achieved with this combined substrate too. Mycelial growth in sunflower root exudates from uninoculated plants was higher than that in sunflower plants inoculated with S. sclerotiorum. The substrate did not influence mycelial growth in root exudates. Soybean root exudates did not show this effect of the pathogen. This study proves that the addition of organic matter inputs such as biochar and compost can improve plant growth and can also have favorable effects against S. sclerotiorum infection. In addition, it is demonstrated that both the pathogen and host plant are instrumental in determining the mode of action of the supplemented organic material. The addition of the same organic material can lead to different responses in certain pathogens, such as S. sclerotiorum, depending on the host plant.

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

Cited by 11 publications

References 42 publications

Physiology and metabonomics reveal differences in drought resistance among soybean varieties

Physiology and metabonomics reveal differences in drought resistance among soybean varieties

Effects of Different Land Use Patterns on Soil Water in Loess Hilly and Gully Regions of China

Response of sunflower and soybean to infection with Sclerotinia sclerotiorum with addition of organic amendments

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