Growth and yield responses of soybean (Glycine max [L.] Merr.) accessions after exposure to cadmium

Ikhajiagbe, Beckley; Ogwu, Matthew Chidozie; Lato, Nosayana Florence

doi:10.1007/s42535-021-00189-y

Cited by 7 publications

(5 citation statements)

References 36 publications

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“…Soybean is tolerant to low-Cd stress with limited loss in yield, but high-Cd stress significantly affects plant growth and yield (Ikhajiagbe et al, 2021). Considerable genetic variations among soybean cultivars concerning Cd-uptake, accumulation, and translocation to the aerial parts were observed (Arao et al, 2003).…”

Section: Legume Plantsmentioning

confidence: 99%

Cadmium tolerance and hyperaccumulation in plants – A proteomic perspective of phytoremediation

Niu

Wang

et al. 2023

Ecotoxicology and Environmental Safety

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Section: Legume Plantsmentioning

confidence: 99%

Cadmium tolerance and hyperaccumulation in plants – A proteomic perspective of phytoremediation

Niu

Wang

et al. 2023

Ecotoxicology and Environmental Safety

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“…The soybean plant (Glycine max) is a pivotal staple crop in China, where its growth and development are notably susceptible to metal-induced stress. This susceptibility not only curtails soybean yield but also poses a potential risk to consumer health [30,31]. The threshold for Mn (Mn 2+ ) toxicity in soybean seedling growth was identified at 0.05 mM.…”

Section: Introductionmentioning

confidence: 99%

Regulatory Mechanism through Which Old Soybean Leaves Respond to Mn Toxicity Stress

Pan,

Shi,

et al. 2024

IJMS

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Manganese (Mn) is a heavy metal that can cause excessive Mn poisoning in plants, disrupting microstructural homeostasis and impairing growth and development. However, the specific response mechanisms of leaves to Mn poisoning have not been fully elucidated. This study revealed that Mn poisoning of soybean plants resulted in yellowing of old leaves. Physiological assessments of these old leaves revealed significant increases in the antioxidant enzymes activities (peroxidase (POD), superoxide dismutase (SOD), ascorbate peroxidase (APX), and catalase (CAT)) and elevated levels of malondialdehyde (MDA), proline, indoleacetic acid (IAA), and salicylic acid (SA), under 100 μM Mn toxicity. Conversely, the levels of abscisic acid (ABA), gibberellin 3 (GA3), and jasmonic acid (JA) significantly decreased. The Mn content in the affected leaves significantly increased, while the levels of Ca, Na, K, and Cu decreased. Transcriptome analysis revealed 2258 differentially expressed genes in the Mn-stressed leaves, 744 of which were upregulated and 1514 were downregulated; these genes included genes associated with ion transporters, hormone synthesis, and various enzymes. Quantitative RT-PCR (qRT-PCR) verification of fifteen genes confirmed altered gene expression in the Mn-stressed leaves. These findings suggest a complex gene regulatory mechanism under Mn toxicity and stress, providing a foundation for further exploration of Mn tolerance-related gene regulatory mechanisms in soybean leaves. Using the methods described above, this study will investigate the molecular mechanism of old soybean leaves’ response to Mn poisoning, identify key genes that play regulatory roles in Mn toxicity stress, and lay the groundwork for cultivating high-quality soybean varieties with Mn toxicity tolerance traits.

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“…Soybean ( Glycine max ) is a plant of the genus Glycine in the Fabaceae family, and it is one of the most important legumes in the world [ 23 ]. As a crop, soybean frequently suffers diverse metal ion stresses throughout its life cycle, not merely limiting the production but threatening people’s health because of accumulating harmful heavy metallic elements [ 24 , 25 ]. Soybeans are highly susceptible to Mn poisoning.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Sequencing Analysis of Root in Soybean Responding to Mn Poisoning

Liu

Pan

et al. 2023

IJMS

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Manganese (Mn) is among one of the essential trace elements for normal plant development; however, excessive Mn can cause plant growth and development to be hindered. Nevertheless, the regulatory mechanisms of plant root response to Mn poisoning remain unclear. In the present study, results revealed that the root growth was inhibited when exposed to Mn poisoning. Physiological results showed that the antioxidase enzyme activities (peroxidase, superoxide dismutase, ascorbate peroxidase, and catalase) and the proline, malondialdehyde, and soluble sugar contents increased significantly under Mn toxicity stress (100 μM Mn), whereas the soluble protein and four hormones’ (indolebutyric acid, abscisic acid, indoleacetic acid, and gibberellic acid 3) contents decreased significantly. In addition, the Mn, Fe, Na, Al, and Se contents in the roots increased significantly, whereas those of Mg, Zn, and K decreased significantly. Furthermore, RNA sequencing (RNA-seq) analysis was used to test the differentially expressed genes (DEGs) of soybean root under Mn poisoning. The results found 45,274 genes in soybean root and 1430 DEGs under Mn concentrations of 5 (normal) and 100 (toxicity) μM. Among these DEGs, 572 were upregulated and 858 were downregulated, indicating that soybean roots may initiate complex molecular regulatory mechanisms on Mn poisoning stress. The results of quantitative RT-PCR indicated that many DEGs were upregulated or downregulated markedly in the roots, suggesting that the regulation of DEGs may be complex. Therefore, the regulatory mechanism of soybean root on Mn toxicity stress is complicated. Present results lay the foundation for further study on the molecular regulation mechanism of function genes involved in regulating Mn tolerance traits in soybean roots.

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Growth and yield responses of soybean (Glycine max [L.] Merr.) accessions after exposure to cadmium

Cited by 7 publications

References 36 publications

Cadmium tolerance and hyperaccumulation in plants – A proteomic perspective of phytoremediation

Cadmium tolerance and hyperaccumulation in plants – A proteomic perspective of phytoremediation

Regulatory Mechanism through Which Old Soybean Leaves Respond to Mn Toxicity Stress

Transcriptome Sequencing Analysis of Root in Soybean Responding to Mn Poisoning

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