Article
Plant Sciences
Chang Wang, He Qiu, Yu Chen, Yao Xu, Fuxin Shan, Hongyu Li, Chao Yan, Chunmei Ma
Summary: This study investigated the regulatory effects of red light on soybean hypocotyl growth, revealing that red light inhibits hypocotyl elongation and increases hypocotyl diameter by enhancing cell wall firmness and promoting the accumulation of ethylene precursors.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(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
Biochemistry & Molecular Biology
Maria Martha Sainz, Carla Valeria Filippi, Guillermo Eastman, Jose Sotelo-Silveira, Omar Borsani, Mariana Sotelo-Silveira
Summary: Soybean plants establish symbiosis with rhizobacteria to perform biological nitrogen fixation (BNF). This study investigated the differential response of nodulated soybean plants to water-deficit stress and identified a greater number of differentially expressed genes (DEGs) under water deficit compared to nodulation condition. Additionally, the complete repertoire of thioredoxins (Trx) and glutaredoxins (Grx) in soybean was identified, and a network involving their interaction with nitrogen metabolism enzymes was revealed.
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.
Correction
Plant Sciences
Bao Zhang, Mengdi Wang, Yifang Sun, Peng Zhao, Chang Liu, Ke Qing, Xiaotong Hu, Zhedong Zhong, Jialong Cheng, Haijiao Wang, Yaqi Peng, Jiajia Shi, Lili Zhuang, Si Du, Miao He, Hui Wu, Min Liu, Shengcai Chen, Hong Wang, Xu Chen, Wei Fan, Kewei Tian, Yin Wang, Qiang Chen, Shixiang Wang, Faming Dong, Chunyan Yang, Mengchen Zhang, Qijian Song, Youguo Li, Xuelu Wang
Summary: The paper has been corrected.
Article
Plant Sciences
Pedro Castro-Valdecantos, Jaime Puertolas, Alfonso Albacete, Ian C. Dodd
Summary: The study investigated the importance of shoot-to-root communication in modulating tissue phytohormone balance under dry soil conditions. Girdling affected root and leaf phytohormone concentrations, with leaf ABA concentration consistently correlating with stomatal conductance. The results suggest a key role of coordination between root and leaf hormone concentrations in regulating stomatal closure during drought stress.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Biotechnology & Applied Microbiology
Luanna Karoline Rinaldi, Angelica Miamoto, Angelica Calandrelli, Monique Thiara Rodrigues e Silva, Lana Paola Silva Chidichima, Carolina Bertuzzi Pereira, Claudia Regina Dias-Arieira
Summary: The study found that an aqueous extract of Ascophyllum nodosum has the ability to directly control the root-knot nematode Meloidogyne javanica and induce resistance in soybean. High extract doses reduced nematode population density in soybean by 65% and application by soil drenching increased plant growth. Additionally, the extract increased the activity of defense enzymes in relation to inoculated and untreated control plants.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Plant Sciences
Xuanbo Zhong, Wei Hong, Yue Shu, Jianfei Li, Lulu Liu, Xiaoyang Chen, Faisal Islam, Weijun Zhou, Guixiang Tang
Summary: This study reported the characterization and function of GmHdz4, a HD-Zip I gene, in soybean response to drought stress. GmHdz4 was found to localize in the plant nucleus and display transcriptional activation activity, and its expression was induced by PEG-simulated drought stress. Editing of GmHdz4 using the CRISPR/Cas9 system was shown to enhance drought tolerance in soybean. These findings provide new insights for future molecular breeding research in soybean.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Celia Carolina Zimicz, Alicia Susana Moretto, Carolina Camilion
Summary: This study aimed to evaluate the effect of increasing boron concentrations on germination, growth, and root anatomy of two soybean varieties. The results showed that higher boron concentrations reduced germination percentages and growth variables, with significant differences between the varieties. M 6210 exhibited higher leaf senescence and abscission. The diameter of xylem vessels in M 6210 decreased gradually with increasing boron concentrations. This study provides detailed insights into the impact of boron toxicity on soybean varieties.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Plant Sciences
Pedro Castro-Valdecantos, Purificacion A. Martinez-Melgarejo, Francisco Perez-Alfocea, Jiang Tian, Ian C. Dodd
Summary: The excision of stem phloem tissue between the cotyledonary and the first unifoliate leaf, combined with low phosphorus (P) conditions, modulated the gene expression related to P homeostasis, sucrose metabolism, hormone homeostasis, and ABA signaling in roots and leaves. P deprivation mainly upregulated root and leaf P homeostasis gene expression in intact plants, while girdling suppressed root expression of these genes but increased root P concentrations and decreased leaf P concentrations.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Marcos Fernando Basso, Isabela Tristan Lourenco-Tessutti, Clidia Eduarda Moreira-Pinto, Reneida Aparecida Godinho Mendes, Debora Goncalves Pereira, Adriana Grandis, Leonardo Lima Pepino Macedo, Amanda Ferreira Macedo, Ana Cristina Meneses Mendes Gomes, Fabricio Barbosa Monteiro Arraes, Roberto Coiti Togawa, Marcos Mota do Carmo Costa, Francismar Correa Marcelino-Guimaraes, Maria Cristina Mattar Silva, Eny Iochevet Segal Floh, Marcos Silveira Buckeridge, Janice de Almeida Engler, Maria Fatima Grossi-de-Sa
Summary: The overexpression of the GmEXPA1 gene in soybean reduces susceptibility to root-knot nematodes by increasing root lignification. Transgenic lines of Arabidopsis thaliana and Nicotiana tabacum overexpressing GmEXPA1 showed reduced susceptibility to the nematode, without affecting plant growth or yield. The transgenic lines of tobacco also exhibited upregulation of genes involved in ethylene and lignin biosynthesis, along with higher lignin content.
PLANT CELL REPORTS
(2023)
Article
Agronomy
Gerhard Engelbrecht, Sarina Claassens, Charlotte M. S. Mienie, Hendrika Fourie
Summary: The study investigated the nematicidal activity of Bacillus spp. mixtures isolated from soybean rhizospheres on the motility of second-stage juveniles of mixed Meloidogyne communities. Results showed that these mixtures could effectively reduce the motility of Meloidogyne spp. juveniles.
Article
Plant Sciences
Cheng Li, Kangning Li, Xinyi Liu, Hui Ruan, Mingming Zheng, Zhijie Yu, Junyi Gai, Shouping Yang
Summary: The study revealed the crucial role of GmWRKY46 in soybean, showing that overexpression of GmWRKY46 significantly enhances tolerance to Pi starvation by affecting the expression of genes related to energy metabolism, stress responses, and plant hormone signal transduction.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Delphy Rocha, T. K. Kunhamu, B. Mohan Kumar, A. V. Santhoshkumar, V. Jamaludheen
Summary: The study investigated the effects of stand density and pruning on fine root production and nutrient release in a 12-year-old Acacia mangium stand in Kerala, India. Results showed that fine root production was influenced by stand density, while turnover rates were not affected. Tree pruning had modest effects on tree growth and nutrient release patterns.
AGROFORESTRY SYSTEMS
(2021)