Article
Plant Sciences
Yanyan Wang, Jianyu Li, Yuhu Pan, Jingye Chen, Ying Liu
Summary: The toxicity of excess manganese (Mn) on soybean plants inhibits their growth and development, affecting enzyme activity and metabolic pathways. Different reactions are observed in soybean roots and leaves in response to Mn toxicity.
Article
Agronomy
Yi Dai, Muhammad Adnan Tabassum, Lin Chen, Zhenzhi Pan, Li Song
Summary: Nitrate is essential for plant growth, but both high and low concentrations of nitrate inhibit soybean root development compared to optimal levels. Transcriptome analysis revealed differentially expressed genes related to metabolic processes, catalytic activity, and membrane function in response to different nitrate concentrations, providing insights into the molecular mechanisms of root response.
Article
Plant Sciences
Mohamed Kante, Wassila Riah-Anglet, Isabelle Trinsoutrot-Gattin, Jean-Bernard Cliquet
Summary: Legume crop production has multiple benefits for agricultural systems, including increased soil organic C and reduced use of N fertilizer through rhizodeposition. In this study, the contribution of root exudation and root senescence to rhizodeposition of atmospheric C and N was investigated in annual and perennial legumes. The results suggested that root traits indicative of resource acquisition and root development played a role in controlling both C and N rhizodeposition.
JOURNAL OF ECOLOGY
(2023)
Article
Engineering, Chemical
Maria Evangelina Carezzano, Pablo Gaston Reyna, Efren Accotto, Walter Giordano, Maria de las Mercedes Oliva, Patricia Rodriguez Pardina, Maria Carola Sabini
Summary: Soybean mosaic disease caused by soybean mosaic virus (SMV) results in significant losses in yield and seed quality worldwide. This study evaluated the phytotoxicity of Achyrocline satureioides extract and essential oils of Minthostachys verticillata, Origanum vulgare, and Thymus vulgaris on soybean. The results showed that all concentrations tested were safe, and two essential oils inhibited the production of viral antigens, indicating potential for developing an effective biopesticide against SMV.
Article
Agronomy
Joao Victor dos Santos Caldas, Alessandro Guerra da Silva, Guilherme Braga Pereira Braz, Sergio de Oliveira Procopio, Itamar Rosa Teixeira, Matheus de Freitas Souza, Lais Tereza Rego Torquato Reginaldo
Summary: Weed interference is a limiting factor for high yields in soybean crop. The level of interference varies depending on the weed community and soybean varieties. This study evaluated the effects of weed interference on soybean varieties with different relative maturity groups. Different weed management strategies had significant effects on chlorophyll levels and grain yield. Late interventions in weed control resulted in yield losses regardless of the soybean variety.
Article
Agronomy
Erica de Castro Costa, Justino J. Dias-Neto, Lincoln V. A. S. Bizerra, Nedio Tormen, Pierce A. Paul, Adalberto C. Cafe-Filho
Summary: Brazilian soybean, mainly grown in the Cerrado, has been studied for its response to target spot disease caused by Corynespora cassiicola. The study focuses on understanding the relationship between environmental parameters and disease intensity.
Article
Plant Sciences
Doaa Bahaa Eldin Darwish, Mohammed Ali, Aisha M. Abdelkawy, Muhammad Zayed, Marfat Alatawy, Aziza Nagah
Summary: This study investigated the genetic and biological roles of the GsIMaT2 gene from wild soybean in the regulation of nodule and root growth in soybean. The overexpression of GsIMaT2 was found to increase nodule numbers, fresh nodule weight, root weight, and root length by boosting strigolactone formation. Additionally, the study revealed that isoflavones and their biosynthetic genes play unique functions in the nodulation signaling system in soybean.
Review
Biochemistry & Molecular Biology
Bowei Jia, Yuan Li, Xiaoli Sun, Mingzhe Sun
Summary: This study summarizes the current knowledge of soybean calcium transporters in terms of structural features, expression characteristics, roles in stress response, and prospects.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Xiaoyang Guo, Jinghan Jiang, Ying Liu, Lili Yu, Ruzhen Chang, Rongxia Guan, Lijuan Qiu
Summary: This study utilized F2-3 mapping populations derived from a wild soybean germplasm with high salt tolerance and two salt-sensitive soybean cultivars to detect and map salt tolerance-related genes. Through molecular marker technologies and analysis strategies, salt tolerance loci were successfully mapped on different chromosomes, providing a new theoretical foundation for breeding salt-tolerant soybean.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Environmental Sciences
Mariana Elisa Vezza, Romina del Pilar Pramparo, Ana Laura Wevar Oller, Elizabeth Agostini, Melina Andrea Talano
Summary: Arsenic is a global concern due to its high toxicity and detrimental effects on soybean growth and food safety. Co-inoculation of soybean with specific plant growth-promoting rhizobacteria (PGPR) improves soybean growth, antioxidant system, and reduces arsenic accumulation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Plant Sciences
Joao M. Kafer, Mayla D. C. Molinari, Fernando A. Henning, Alessandra Koltun, Viviani V. Marques, Silvana R. R. Marin, Alexandre L. Nepomuceno, Liliane M. Mertz-Henning
Summary: This study aimed to identify genes associated with soybean seed quality by comparing the transcriptomes of soybean seeds with different seed coat colors. Through RNA-seq analysis and validation with real-time PCR, 318 differentially expressed genes were found in all cultivars. These genes are involved in pathways related to ethylene, lipid, brassinosteroid, lignin, and sulfur amino acid biosynthesis.
Article
Biochemistry & Molecular Biology
Hui-Yuan Zhang, Ze-Hao Hou, Yan Zhang, Zhi-Yong Li, Jun Chen, Yong-Bin Zhou, Ming Chen, Jin-Dong Fu, You-Zhi Ma, Hui Zhang, Zhao-Shi Xu
Summary: The soybean GmEF8 gene plays a positive role in regulating drought and heat stresses in Arabidopsis and soybean, and its overexpression enhances the plants' tolerance to these stresses.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Agronomy
Zhimin Qiu, Mengyan Bai, Huaqin Kuang, Xin Wang, Xiaomin Yu, Xiangbin Zhong, Yuefeng Guan
Summary: In this study, the researchers investigated the functions of FBA in soybean and identified 14 GmFBA genes. They found that GmFBAc1 and GmFBAc2 were widely expressed in different tissues. By using CRISPR-Cas9 gene editing technology, they obtained double mutant lines of GmFBAc1 and GmFBAc2, which showed dwarf seedlings and narrow leaflets, indicating the critical role of GmFBAc1 and GmFBAc2 in soybean growth and development.
Article
Agronomy
Luiz H. Moro Rosso, Santiago Tamagno, Anelise L. da Silva, Adalgisa R. Torres, Rai A. Schwalbert, Ignacio A. Ciampitti
Summary: The study found that the base of the stem in soybean plants is a reliable fraction for quantifying ureide abundance, while the ureide content in upper leaflets is poorly correlated with values in the main stem. Additionally, the RAU trends in the upper petiole are similar to those in the base of the stem, but do not provide reliable RAU estimates.
EUROPEAN JOURNAL OF AGRONOMY
(2021)
Article
Plant Sciences
Nusrat Jahan Methela, Anjali Pande, Mohammad Shafiqul Islam, Waqas Rahim, Adil Hussain, Da-Sol Lee, Bong-Gyu Mun, Nirmal Prashanth Maria Joseph Raj, Sang-Jae Kim, Yoonha Kim, Byung-Wook Yun
Summary: This study highlights the potential of nano-technology-based delivery systems for nitric oxide donors to improve plant growth and development and protect against stresses. The chitosan-GSNO nanoparticles showed promising results in enhancing drought tolerance in soybean plants by regulating gene expression and physiological responses.
Article
Soil Science
Subin Kalu, Gboyega Nathaniel Oyekoya, Per Ambus, Priit Tammeorg, Asko Simojoki, Mari Pihlatie, Kristiina Karhu
Summary: The study showed that application of biochar can reduce soil nitrogen gas emissions and nitrogen leaching, while increasing plant biomass. However, there were no significant differences in N2O emissions and plant biomass between nutrient-enriched biochar and regular biochar treatments, although they did affect soil mineral nitrogen leaching.
BIOLOGY AND FERTILITY OF SOILS
(2021)
Article
Environmental Sciences
Laura H. Rasmussen, Wenxin Zhang, Per Ambus, Per-Erik Jansson, Barbara Kitzler, Bo Elberling
Summary: Future Arctic tundra productivity and vegetation composition will be influenced by nitrogen availability. Winter nitrogen mineralization has limited impact on plant growth and carbon sequestration, while summer near-surface warming promotes plant biomass and nitrogen uptake.
Article
Environmental Sciences
Laura H. Rasmussen, Wenxin Zhang, Per Ambus, Anders Michelsen, Per-Erik Jansson, Barbara Kitzler, Bo Elberling
Summary: Understanding N budgets of tundra ecosystems is crucial for projecting future changes in plant community composition, greenhouse gas balances and soil N stocks. Winter warming can lead to higher tundra winter nitrogen (N) mineralization rates, while summer warming may increase both growing season N mineralization and plant N demand. The study found that different plant species utilize nitrogen input differently depending on the season, highlighting the importance of considering lateral nitrogen inputs in future projections of tundra ecosystem responses.
Review
Environmental Sciences
Elisabeth Ramm, Chunyan Liu, Per Ambus, Klaus Butterbach-Bahl, Bin Hu, Pertti J. Martikainen, Maija E. Marushchak, Carsten W. Mueller, Heinz Rennenberg, Michael Schloter, Henri M. P. Siljanen, Carolina Voigt, Christian Werner, Christina Biasi, Michael Dannenmann
Summary: This study shows that permafrost-affected soils exhibit active mineral nitrogen cycling, similar to temperate and tropical systems. This finding challenges the existing paradigm and suggests larger permafrost N climate feedbacks than previously assumed.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Wenyi Xu, Bo Elberling, Per Lennart Ambus
Summary: Fire in combination with summer warming can increase microbial P pools, enhance soil N retention, and potentially increase N uptake by recovering plants. Additionally, fire may alter N uptake differently among dominant shrub species in the tundra ecosystem, potentially changing plant species composition in the longer term.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Lena Hermesdorf, Bo Elberling, Ludovica D'Imperio, Wenyi Xu, Anders Lambaek, Per L. Ambus
Summary: This study investigates the effects of wildfires on the greenhouse gas emissions in Arctic tundra ecosystems. It finds that wildfires increase carbon dioxide emissions but have minor effects on methane and nitrous oxide emissions. Additionally, wildfires do not significantly impact soil moisture and temperature.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Biochemical Research Methods
Christina Biasi, Simo Jokinen, Judith Prommer, Per Ambus, Peter Doersch, Longfei Yu, Steve Granger, Pascal Boeckx, Katja Van Nieuland, Nicolas Brueggemann, Holger Wissel, Andrey Voropaev, Tami Zilberman, Helena Jaentti, Tatiana Trubnikova, Nina Welti, Carolina Voigt, Beata Gebus-Czupyt, Zbigniew Czupyt, Wolfgang Wanek
Summary: This study conducted an interlaboratory comparison of different methods for measuring delta N-15 in NO3- and NH4+ in 10 European laboratories. The results showed that laboratories using CM-N2O performed superior for both NO3- and NH4+, followed by DN. Most methods and laboratories underestimated the at%N-15 of N-i of labeled standards, but relative errors were within maximal 6% deviation from the real value and therefore acceptable.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
(2022)
Article
Soil Science
Kevin Z. Mganga, Outi-Maaria Sietio, Nele Meyer, Christopher Poeplau, Sylwia Adamczyk, Christina Biasi, Subin Kalu, Matti Rasanen, Per Ambus, Hannu Fritze, Petri K. E. Pellikka, Kristiina Karhu
Summary: This study investigated the microbial carbon-use efficiency (CUE) and soil nutrient availability in tropical forest soils along an altitudinal gradient. The results showed that different methods of estimating microbial CUE led to inconsistent results. Additionally, the study found that microbial CUE decreased with increasing altitude and was associated with indicators of soil nutrient availability.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Soil Science
Wenyi Xu, Bo Elberling, Per Lennart Ambus
Summary: The frequency and severity of wildfires in the Arctic tundra have been increasing due to climate change. The incomplete combustion of biomass produces pyrogenic organic matter (PyOM), which contains nutrients such as nitrogen (N) and affects the nitrogen cycling of ecosystems during post-fire recovery. This study investigated the effects of fire and summer warming on soil biogeochemical cycles in an Arctic heath tundra in West Greenland. The findings suggest that fire-induced PyOM can act as a nitrogen source for plant recovery in the Arctic tundra for several years after the fire, and this source becomes increasingly important in a future warmer climate.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Soil Science
Laura Helene Rasmussen, Louise H. Mortensen, Per Ambus, Anders Michelsen, Bo Elberling
Summary: This study examined the fate of nitrogen released in the Arctic landscape, finding that season progression is the key factor influencing NO3- concentrations and N2O fluxes. Nitrification replaced denitrification as the main source of N2O during the growing season due to increased soil temperatures and decreased soil moisture. The loss of gaseous N from the slope in the first month of thaw was minimal, with NO3- immobilized or taken up by plants, reducing N2O emissions.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Soil Science
Wenyi Xu, Laura Lonstrup Frendrup, Anders Michelsen, Bo Elberling, Per Lennart Ambus
Summary: The impacts of increased winter snowfall and warmer summer air temperatures on nitrous oxide (N2O) dynamics in arctic tundra are uncertain. The study evaluated surface N2O dynamics in wet and dry tundra in West Greenland, and found that summer warming and deepened snow significantly increased N2O emissions in dry tundra, but not in wet tundra. The findings suggest that projected increases in winter precipitation and summer air temperatures may increase N2O emissions, particularly in the dry tundra dominant region.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Soil Science
Nele Meyer, Outi-Maaria Sietio, Sylwia Adamczyk, Per Ambus, Christina Biasi, Bruno Glaser, Subin Kalu, Angela Martin, Kevin Z. Mganga, Miikka Olin, Aino Seppanen, Rashmi Shrestha, Kristiina Karhu
Summary: In this experiment, it was found that under nitrogen-deficient conditions, microbial residues may be intensely recycled for nitrogen acquisition, preventing the accumulation of labile carbon; the differences in nitrogen supply and demand can change the functionality and composition of the microbial community, thus affecting the stabilization of microbial carbon. The treatment with both tree and nitrogen fertilization had the highest amount of added carbon remaining in the soil, indicating lower recycling of microbial necromass and a changed microbial composition that leaves behind more stable residues.
APPLIED SOIL ECOLOGY
(2023)
Article
Soil Science
Wenyi Xu, Dufeng Zhao, Yan Ma, Guiting Yang, Per Lennart Ambus, Xinhong Liu, Jia Luo
Summary: Intensive vegetable fields with high nitrogen (N) application rates emit a large amount of nitrous oxide (N2O), a potent greenhouse gas. Substituting organic fertilizers for chemical fertilizers can mitigate N2O emissions in the short-term, but the long-term effects on soil background N2O emissions remain unclear. This 11-year experiment investigated the impacts of long-term fertilization on soil background N2O emissions and the abundance of N-cycling genes in a greenhouse vegetable field. The results showed that the long-term application of chemical and organic fertilizers significantly increased soil background N2O emissions, but organic fertilizer substitution helped to buffer N2O consumption activities.
APPLIED SOIL ECOLOGY
(2023)
Article
Soil Science
Louise C. Andresen, Per Ambus, Claus Beier, Anders Michelsen
Summary: Nitrogen dynamic is a crucial factor in N-limited terrestrial ecosystems' response to climate change. In this study, the partitioning of N in a grassland heath was studied, along with the impact of multiple climate change factors on long-term N retention. After 6 years, it was observed that the majority of the applied N-15 was stabilized in the soil, while the plant compartment and microbial biomass retained a small proportion. The results suggest that N retention in this ecosystem is moderate compared to similar studies in forest ecosystems.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2023)
Article
Soil Science
Xin Ye, Hongyu Ran, Xiao Wang, Guitong Li, Per Ambus, Gang Wang, Kun Zhu
Summary: This study aimed to investigate the combined effects of straw returning forms and N fertilizer management on soil N2O emissions. Delayed N fertilization attenuated the magnitude of N2O emissions after straw additions, and the combination of charred straw with straw further mitigated N2O emissions, especially when combined with delayed N fertilization. Soil pH was found to be the main regulator for N2O emissions under different straw returning forms and N application.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2023)
