Article
Genetics & Heredity
Ankush Chandel, Ross Mann, Jatinder Kaur, Ian Tannenbaum, Sally Norton, Jacqueline Edwards, German Spangenberg, Timothy Sawbridge
Summary: This study compared the composition of seed-associated bacteria between native Glycine clandestina and domesticated Glycine max soybean. The results showed that the seed microbiome of native Glycine clandestina was more diverse and dominated by the bacterial class Gammaproteobacteria compared to the domesticated Glycine max. Plant species and individual seed accessions were identified as the main drivers for the diversity and composition of the microbiota.
ENVIRONMENTAL MICROBIOME
(2022)
Article
Microbiology
Yuanhui Liu, Bin Ma, Wenfeng Chen, Klaus Schlaeppi, Matthias Erb, Erinne Stirling, Lingfei Hu, Entao Wang, Yunzeng Zhang, Kankan Zhao, Zhijiang Lu, Shudi Ye, Jianming Xu
Summary: Root-microbiome interactions play a crucial role in plant performance and yield, particularly in legumes which engage in symbiosis with N-2-fixing rhizobia. The rhizobial symbiotic capacity was found to significantly alter root-associated microbiomes by impacting diversity, co-occurrence interactions, and microbial depletion in the rhizosphere and rhizoplane. Root exudates and soil physiochemical properties were closely correlated with microbial community shifts in response to different rhizobial treatments.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Agronomy
Ciro Antonio Rosolem, Thiago Barbosa Batista, Patricia Pereira Dias, Laudelino Vieira da Motta Neto, Juliano Carlos Calonego
Summary: The joint application of phosphorus (P) and ammonium (N-NH4+) has been shown to increase maize root proliferation and P acquisition in alkaline soils. This study aimed to assess the effect of the joint application of P and N-NH4+ on soybean root growth and P acquisition. The results showed that P fertilization increased the soil P content, decreased the rhizosphere pH, and resulted in increased soybean P uptake and use efficiency.
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.
Article
Biochemistry & Molecular Biology
Jamie A. O'Rourke, Michelle A. Graham
Summary: Research indicates that the transcriptional response of plants to repeated or sequential stress exposure involves genes typically associated with reproduction, rather than stress responses. The plasticity of the plant transcriptome highlights the complexity of unraveling stress response pathways.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Multidisciplinary Sciences
Jay Ram Lamichhane
Summary: The quality of field crop establishment is crucial for the productivity and yield quality of a crop, influenced by various biotic and abiotic factors, including cropping practices. Vertebrate pests, such as the common wood pigeon and European hare, can cause significant damage to post-emergence soybean seedlings, affecting the crop's ability to compensate for the damage.
Article
Agronomy
Allan J. Hertzberger, Roland D. Cusick, Andrew J. Margenot
Summary: Blends of struvite and MAP can improve the efficiency of P and N uptake by crops, with moderate amounts not affecting biomass of maize and soybean, and helping to reduce the risk of soluble P loss.
Article
Agronomy
Fernando Henrique Iost Filho, Juliano de Bastos Pazini, Andre Dantas de Medeiros, David Luciano Rosalen, Pedro Takao Yamamoto
Summary: Arthropod pests are a major problem in soybean production and traditional sampling methods are laborious. This study evaluates the use of hyperspectral remote sensing to establish reflectance patterns for monitoring stinkbugs and caterpillars infestation in soybean plants. The results show that stinkbug infestation did not cause significant changes in reflectance patterns, while caterpillar infestation did, and can be classified using deep-learning methods.
Article
Agronomy
Daniele Caroline Horz Engel, Daniela Feltrim, Mayara Rodrigues, Joao Leonardo Corte Baptistella, Paulo Mazzafera
Summary: Algae extract biostimulants can enhance nutrient uptake, stress tolerance, and productivity in various crops. This study aimed to investigate the effect of a commercial Ascophyllum nodosum algae extract on nitrogen metabolism and productivity in nodulating soybean plants. The results showed that the application of algae extract increased leaf and stem biomass, pod and seed number and weight, and overall productivity. Biochemical analysis revealed an increase in amino acid content in leaves after extract application. Principal component analysis and gene expression heatmaps supported the conclusion that algae extract application affected nitrogen metabolism and led to higher seed production.
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
Environmental Sciences
Yonca Surgun-Acar
Summary: Micro and nanoplastics are new generation contaminants of global concern. By conducting a hydroponic experiment on soybean seedlings, this study found that polystyrene nanoplastics (PS-NPs) negatively affected the growth parameters of soybean seedlings and caused oxidative stress. Additionally, the levels of antioxidant enzymes and proline content in roots and leaves of soybean were enhanced, and stress-related genes were up-regulated in a tissue specific manner in response to PS-NPs. These findings suggest that PS-NPs have adverse effects on soybean seedlings, which are important for the risk assessment of nanoplastics on crop production and environmental safety.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biodiversity Conservation
Natalie Christian, Baldemar Espino Basurto, Amber Toussaint, Xinyan Xu, Elizabeth A. Ainsworth, Posy E. Busby, Katy D. Heath
Summary: Free-air CO2 enrichment experiments have shown the impact of climate change on plant physiology and production. Elevated CO2 levels were found to alter the composition of soybean leaf endophyte communities, leading to changes in interactions between bacteria and fungi. In vitro studies revealed that Methylobacterium had antagonistic effects on co-occurring fungal endophytes, particularly when well-established before fungal introduction.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Agronomy
Guilherme Braga Pereira Braz, Eduardo Souza Freire, Bruno Cesar Silva Pereira, Fernanda dos Santos Farnese, Matheus de Freitas Souza, Lucas Loram-Lourenco, Leticia Ferreira de Sousa
Summary: The study found that the application of glyphosate (2592 g a.i. ha(-1)) and the sequential application of glyphosate can result in higher levels of intoxication. However, the combination of B. subtilis BV02 with glyphosate (2592 g a.i. ha(-1)) can prevent losses in relative chlorophyll a and b values and the total chlorophyll index. Soybean yield is reduced when plants are subjected to a sequential application of glyphosate.
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
Plant Sciences
Aamir Saleem, Jonas Aper, Hilde Muylle, Irene Borra-Serrano, Paul Quataert, Peter Lootens, Tom De Swaef, Isabel Roldan-Ruiz
Summary: Drought causes significant damage to soybean crops, and Europe's demand for soybean is growing while its own production is insufficient. Therefore, the selection and breeding of soybean cultivars adapted to European growth conditions is urgently needed.
FRONTIERS IN PLANT SCIENCE
(2022)