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Related Concept Videos

Responses to Salt Stress02:02

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Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
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The pH of a salt solution is determined by its component anions and cations. Salts that contain pH-neutral anions and the hydronium ion-producing cations form a solution with a pH less than 7. For example, in ammonium nitrate (NH4NO3) solution, NO3− ions do not react with water whereas NH4+ ions produce the hydronium ions resulting in the acidic solution.  In contrast, salts that contain pH-neutral cations and the hydroxide ion-producing anions form a solution with a pH greater than 7. For...
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Nuclear reprogramming is the process of switching gene expression of one cell type to that of another cell type, usually from a differentiated cell state to an undifferentiated cell state. Differentiation occurs during processes such as development and morphogenesis, tissue regeneration, and malignancy. Cells can also be artificially induced to reprogram their gene expression by techniques such as nuclear transfer, induced pluripotency, and cell fusion. Such techniques have many applications in...
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Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for...
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Transcriptomic reprogramming in soybean seedlings under salt stress.

Ailin Liu1, Zhixia Xiao1, Man-Wah Li1

  • 1Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region, China.

Plant, Cell & Environment
|March 7, 2018
PubMed
Summary
This summary is machine-generated.

Soybean seedlings respond to salt stress by altering gene expression, impacting photosynthesis, sugar metabolism, and nitrogen assimilation. This transcriptomic reprogramming helps plants survive by adjusting physiological and metabolic functions.

Keywords:
gene expression reprogrammingmetabolic adjustmentphytohormone signalingsalinitysoybeantranscriptome

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Area of Science:

  • Plant biology
  • Molecular biology
  • Genomics

Background:

  • Salt stress significantly impacts crop yield and plant physiology.
  • Understanding transcriptomic reprogramming is crucial for developing salt-tolerant crops.

Purpose of the Study:

  • To comprehensively understand transcriptomic reprogramming in soybean under salt stress.
  • To identify key gene expression hubs and signaling pathways involved in salt tolerance.

Main Methods:

  • Whole-transcriptome sequencing of soybean leaves and roots.
  • Time-course experiments under salt treatment (0, 1, 2, 4, 24, 48 hours).
  • Analysis of differential gene expression, focusing on phytohormone signaling, carbon, and nitrogen metabolism.

Main Results:

  • Identified significant gene expression changes across a 48-hour salt stress time course.
  • Phytohormone signaling pathways and their crosstalks were highlighted.
  • Salt stress led to decreased photosynthesis, increased sugar catabolism, and altered nitrogen assimilation and redistribution.

Conclusions:

  • Soybean employs a multipronged transcriptomic strategy to cope with salt stress.
  • Both immediate physiological responses and longer-term metabolic adjustments are critical for salt tolerance.
  • Transcriptomic data provides insights into metabolic adjustments for enhanced plant survival under abiotic stress.