Comprehensive physiological, transcriptomic, and metabolomic analysis of the response of Panicum miliaceum L. roots to alkaline stress

Article Environmental Sciences

Chronic ozone exposure preferentially modifies root rather than foliar metabolism of date palm (Phoenix dactylifera) saplings

L. Arab et al.

Summary: Chronic ozone exposure leads to carbohydrate deficiency in the roots of date palms, causing oxidative stress and making the roots particularly susceptible to this condition.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

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Article Agricultural Engineering

Comparative analysis of drought-responsive physiological and transcriptome in broomcorn millet (Panicum miliaceum L.) genotypes with contrasting drought tolerance

Yuhao Yuan et al.

Summary: Climate change has led to severe drought, impacting global crop production. Broomcorn millet, which is a drought-tolerant crop known for its short life cycle and high water use efficiency, is commonly used in water-saving agriculture. This study evaluated the drought tolerance of 300 broomcorn millet varieties and found that drought stress decreased photosynthetic capacity and triggered transcriptome reprogramming. Additionally, melatonin treatment enhanced drought resistance in the broomcorn millet varieties.

INDUSTRIAL CROPS AND PRODUCTS (2022)

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Article Environmental Sciences

Endogenous bioactive gibberellin/abscisic acids and enzyme activity synergistically promote the phytoremediation of alkaline soil by broomcorn millet (Panicum miliaceum L.)

Qian Ma et al.

Summary: This study investigated the physiological and molecular mechanisms of broomcorn millet seeds in response to alkali stress. The results showed that alkali stress delayed germination and genotypes with lower alkali damage rates exhibited stronger antioxidant defense. Alkali stress also regulated the synthesis and concentration of gibberellic acid and abscisic acid. Additionally, genotypes associated with lower alkali damage rates had higher gibberellic acid/abscisic acid ratios.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

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Article Plant Sciences

Comparative Ionomics and Metabolic Responses and Adaptive Strategies of Cotton to Salt and Alkali Stress

Jiaxin Guo et al.

Summary: Soil salinization and alkalization severely affect agriculture. The response mechanisms of cotton to salt stress or alkali stress were investigated using ionomics and metabolomics. The findings highlight the role of ion accumulation and transport as well as metabolite abundance in cotton's adaptation to salt and alkali stresses.

FRONTIERS IN PLANT SCIENCE (2022)

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Article Plant Sciences

Metabolic and Physiological Changes in the Roots of Two Oat Cultivars in Response to Complex Saline-Alkali Stress

Yugang Gao et al.

Summary: This study investigates the physiological and molecular mechanisms underlying saline-alkali tolerance in oats by characterizing the phenotypic and metabolic responses of two oat cultivars under saline-alkali stress conditions. The findings suggest that enhancements of energy metabolism and accumulations of organic acids are the active strategies of oat roots in response to complex saline-alkali stress.

FRONTIERS IN PLANT SCIENCE (2022)

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Article Engineering, Environmental

Integrated physiological, transcriptomic and metabolomic analysis of the response of Trifolium pratense L. to Pb toxicity

Lingdong Meng et al.

Summary: Lead interferes with plant gene expression and metabolite contents, affecting plant growth. This study provides insights into the molecular mechanisms underlying the response of Trifolium pratense to Pb stress through transcriptomic and metabolomic analyses.

JOURNAL OF HAZARDOUS MATERIALS (2022)

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Article Environmental Sciences

Salt-tolerant broomcorn millet (Panicum miliaceum L.) resists salt stress via modulation of cell wall biosynthesis and Na+ balance

Yu Hao Yuan et al.

Summary: The study demonstrated that the salt-tolerant cultivar ST 47 exhibited better salt tolerance and recovery ability under salt stress, with lower Na+ content and higher K+/Na+ ratio. Digital RNA sequencing analysis revealed that ST 47 showed better gene expression regulation in response to salt stress.

LAND DEGRADATION & DEVELOPMENT (2021)

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Review Plant Sciences

Small Millets for Enduring Food Security Amidst Pandemics

Mehanathan Muthamilarasan et al.

Summary: Small millets have the potential to become new staple crops to address food security issues, but intensification of farming practices and deployment of genetic tools for trait improvement are needed. Optimizing storage and supply chains is also crucial.

TRENDS IN PLANT SCIENCE (2021)

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Article Engineering, Environmental

Salinity alleviates the arsenic toxicity in the facultative halophyte Salvadora persica L. by the modulations of physiological, biochemical, and ROS scavenging attributes

Monika Patel et al.

Summary: The facultative halophyte S. persica demonstrated high tolerance to both salt and arsenic stress, with elevated levels of antioxidant enzymes under stress conditions. It also showed potential for phytoextraction of arsenic-contaminated saline soil.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Article Environmental Sciences

A promising crop for cadmium-contamination remediation: Broomcorn millet

Jiajia Liu et al.

Summary: The study reveals that broomcorn millet plants exhibit considerable tolerance to cadmium stress and show significant differences in cadmium accumulation abilities among varieties, with some varieties identified as potential cadmium hyperaccumulators for further research.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2021)

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Article Agricultural Engineering

Integrative analysis of metabolome and transcriptome reveals molecular regulatory mechanism of flavonoid biosynthesis in Cyclocarya paliurus under salt stress

Lei Zhang et al.

Summary: Research showed that salt stress increased flavonoid content in Cyclocarya paliurus leaves, with differential gene expression and metabolites in the biosynthesis pathway. Weighted gene co-expression network analysis identified key genes and transcription factors regulating salt stress responses.

INDUSTRIAL CROPS AND PRODUCTS (2021)

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Article Plant Sciences

Physiological and comparative transcriptome analysis of leaf response and physiological adaption to saline alkali stress across pH values in alfalfa (Medicago sativa)

Yue Wang et al.

Summary: Soil salinization limits plant growth and function, with more damage from alkaline salt. Research on saline alkali stress across different pH levels is lacking. A study on alfalfa leaves showed low pH stress promoted chlorophyll synthesis, while high pH stress inhibited photosynthesis and nitrogen metabolism, leading to oxidative damage. Osmotic adjustment substances like soluble sugar and proline played a role in adapting to high pH alkali stress.

PLANT PHYSIOLOGY AND BIOCHEMISTRY (2021)

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Article Plant Sciences

MdTyDc Overexpression Improves Alkalinity Tolerance in Malus domestica

Xiaomin Liu et al.

Summary: MdTyDc plays a crucial role in apple plants' resistance to alkali stress by enhancing dopamine content, mainly by maintaining high photosynthetic capacity, normal ion homeostasis, and strong nitrogen absorption capacity.

FRONTIERS IN PLANT SCIENCE (2021)

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Article Plant Sciences

Integrated transcriptomics and metabolomics analysis to characterize alkali stress responses in canola (Brassica napus L.)

Weichao Wang et al.

Summary: The study reveals that amino acids and fatty acids accumulate at higher levels in the roots of canola under alkaline salt stress, while carbohydrate and polyol metabolism decreases. Carbohydrate metabolism may not play a significant role in canola's resistance to alkaline salt stress, whereas fatty acid and amino acid metabolism are crucial pathways for canola tolerance.

PLANT PHYSIOLOGY AND BIOCHEMISTRY (2021)

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Article Plant Sciences

The Alkali Tolerance of Broomcorn Millet (Panicum miliaceum L.) at the Germination and Seedling Stage: The Case of 296 Broomcorn Millet Genotypes

Qian Ma et al.

Summary: This study comprehensively investigated the adaptive mechanism of broomcorn millet to alkali stress and presented a reliable method for evaluating alkali tolerance. The results showed that compared to alkali-sensitive genotypes, alkali-tolerant genotypes exhibited higher antioxidant enzyme activity and soluble osmolyte content, lower malondialdehyde content and electrolyte leakage rate, as well as more intact stomatal structure.

FRONTIERS IN PLANT SCIENCE (2021)

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Article Multidisciplinary Sciences