Plant adaptation to low phosphorus availability: Core signaling, crosstalks, and applied implications

Molecular Plant, Год журнала: 2021, Номер 15(1), С. 104 - 124

Опубликована: Дек. 24, 2021

Язык: Английский

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Nitrogen in plants: from nutrition to the modulation of abiotic stress adaptation

Stress Biology, Год журнала: 2022, Номер 2(1)

Опубликована: Янв. 7, 2022

Nitrogen is one of the most important nutrient for plant growth and development; it strongly associated with a variety abiotic stress responses. As sessile organisms, plants have evolved to develop efficient strategies manage N support when exposed diverse range stressors. This review summarizes recent progress in field nitrate (NO3-) ammonium (NH4+) uptake, which are two major forms that absorbed by plants. We explore intricate relationship between NO3-/NH4+ responses plants, focusing on stresses from deficiencies, unfavorable pH, ions, drought. Although many molecular details remain unclear, research has revealed number core signaling regulators N-mediated An in-depth understanding exploration processes underpin interactions useful design effective improve crop growth, development, productivity.

Язык: Английский

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Plant growth-promoting rhizobacteria: A good companion for heavy metal phytoremediation

Chemosphere, Год журнала: 2023, Номер 338, С. 139475 - 139475

Опубликована: Июль 11, 2023

Язык: Английский

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Nitrate transporter NRT1.1 and anion channel SLAH3 form a functional unit to regulate nitrate‐dependent alleviation of ammonium toxicity

Journal of Integrative Plant Biology, Год журнала: 2022, Номер 64(4), С. 942 - 957

Опубликована: Март 1, 2022

Ammonium (NH4+ ) and nitrate (NO3- are major inorganic nitrogen (N) sources for plants. When serving as the sole or dominant N supply, NH4+ often causes root inhibition shoot chlorosis in plants, known ammonium toxicity. NO3- usually no toxicity can mitigate even at low concentrations, referred to nitrate-dependent alleviation of Our previous studies indicated a efflux channel SLAH3 is involved this process. However, whether additional components contribute -mediated detoxification unknown. Previously, mutations transporter NRT1.1 were shown cause enhanced resistance high concentrations . Whereas, study, we found when high-NH4+ medium was supplemented with , nrt1.1 mutant plants showed hyper-sensitive phenotype instead. Furthermore, mutation caused acidification under /low-NO3- condition, suggesting regulates by facilitating H+ uptake. Moreover, interact form transporter-channel complex. Interestingly, appeared affect influx while influenced efflux, regulate each other protein and/or gene expression levels. study thus revealed functional unit through regulating transport balancing rhizosphere acidification.

Язык: Английский

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miR164‐MhNAC1 regulates apple root nitrogen uptake under low nitrogen stress

New Phytologist, Год журнала: 2024, Номер 242(3), С. 1218 - 1237

Опубликована: Март 13, 2024

Summary Nitrogen is an essential nutrient for plant growth and serves as a signaling molecule to regulate gene expression inducing physiological, developmental responses. An excess or deficiency of nitrogen may have adverse effects on plants. Studying uptake will help us understand the molecular mechanisms utilization targeted breeding. Here, we identified functionally validated NAC (NAM‐ATAF1/2‐CUC2) transcription factor based transcriptomes two apple rootstocks with different efficiency. NAC1, target miR164, directly regulates high‐affinity nitrate transporter ( MhNRT2.4 ) citric acid MhMATE ), affecting root uptake. To examine role MhNAC1 in uptake, produced transgenic lines that overexpressed silenced . Silencing promoted secretion roots, enhanced tolerance low conditions, while overexpression silencing miR164 had opposite effect. This study not only revealed miR164‐ module but also confirmed roots affected which provides research basis efficient breeding apple.

Язык: Английский

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ABA-importing transporter (AIT1) synergies enhances exogenous ABA minimize heavy metals accumulations in Arabidopsis

Journal of Hazardous Materials, Год журнала: 2024, Номер 473, С. 134718 - 134718

Опубликована: Май 23, 2024

Язык: Английский

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Apoplastic pH is a chemical switch for extracellular H₂O₂ signaling in abscisic acid‐mediated inhibition of cotyledon greening

New Phytologist, Год журнала: 2025, Номер unknown

Опубликована: Янв. 20, 2025

Summary The apoplastic pH (pH Apo ) in plants is susceptible to environmental stimuli. However, the biological implications of variation have remained largely unknown. universal stress phytohormone abscisic acid (ABA) as well major stimuli drought and salinity were selected representative cases investigate how changes relate plant behaviors Arabidopsis . Variations negatively regulated cotyledon greening inhibition hormone ABA or through action extracellular hydrogen peroxide (eH 2 O ). Further studies revealed that an increase diminishes chemical reactivity eH , effectively functioning ‘off’ switch for its oxidizing thiols plasma membrane proteins. Consequently, this suppresses ‐mediated ABA, alongside inhibiting intracellular Ca 2+ signaling. Conversely, a decrease serves ‘on’ In summary, crucial messenger signal transduction, notwithstanding apparent simplicity underlying mechanism. Our findings provide novel fundamental insight into significance pH.

Язык: Английский

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Research Advances in the Mutual Mechanisms Regulating Response of Plant Roots to Phosphate Deficiency and Aluminum Toxicity

International Journal of Molecular Sciences, Год журнала: 2022, Номер 23(3), С. 1137 - 1137

Опубликована: Янв. 20, 2022

Low phosphate (Pi) availability and high aluminum (Al) toxicity constitute two major plant mineral nutritional stressors that limit productivity on acidic soils. Advances toward the identification of genes signaling networks are involved in both stresses model plants such as Arabidopsis thaliana rice (Oryza sativa), other well have revealed some factors organic acids (OAs), cell wall properties, phytohormones, iron (Fe) homeostasis interconnected with each other. Moreover, OAs recruiting many plant-growth-promoting bacteria able to secrete phosphatases increase Pi decrease Al toxicity. In this review paper, we summarize these mutual mechanisms by which deal P starvation, emphasis OA secretion regulation, bacteria, transcription factors, transporters, hormones, wall-related kinases context root development system architecture remodeling plays a determinant role improving use efficiency resistance

Язык: Английский

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N fertilizers promote abscisic acid-catabolizing bacteria to enhance heavy metal phytoremediation from metalliferous soils

The Science of The Total Environment, Год журнала: 2023, Номер 894, С. 164964 - 164964

Опубликована: Июнь 19, 2023

Язык: Английский

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Brassinosteroid transcription factor BES1 modulates nitrate deficiency by promoting NRT2.1 and NRT2.2 transcription in Arabidopsis

The Plant Journal, Год журнала: 2023, Номер 114(6), С. 1443 - 1457

Опубликована: Март 23, 2023

Nitrogen (N) is one of the most essential mineral elements for plants. Brassinosteroids (BRs) play key roles in plant growth and development. Emerging evidence indicates that BRs participate responses to nitrate deficiency. However, precise molecular mechanism underlying BR signaling pathway regulating deficiency remains largely unknown. The transcription factor BES1 regulates expression many genes response BRs. Root length, uptake N concentration bes1-D mutants were higher than those wild-type under levels strongly increased low conditions, especially non-phosphorylated (active) form. Furthermore, directly bound promoters NRT2.1 NRT2.2 promote their Taken together, a mediator links by modulating high affinity transporters

Язык: Английский

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