Milestones in understanding transport, sensing, and signaling of the plant nutrient phosphorus

The Plant Cell, Год журнала: 2024, Номер 36(5), С. 1504 - 1523

Опубликована: Янв. 2, 2024

As an essential nutrient element, phosphorus (P) is primarily acquired and translocated as inorganic phosphate (Pi) by plant roots. Pi often sequestered in the soil becomes limited for growth. Plants have developed a sophisticated array of adaptive responses, termed P starvation to cope with deficiency improving its external acquisition internal utilization. Over past 2 3 decades, remarkable progress has been made toward understanding how plants sense respond changing environmental P. This review provides overview molecular mechanisms that regulate or coordinate emphasizing transport, sensing, signaling. We present major players regulators responsible uptake translocation. then introduce perceived at root tip, systemic signaling operated, which intracellular status sensed conveyed. Additionally, recent exciting findings about influence on plant-microbe interactions are highlighted. Finally, challenges prospects concerning interplay between other nutrients strategies enhance utilization efficiency discussed. Insights obtained from this knowledge may guide future research endeavors sustainable agriculture.

Язык: Английский

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Beyond iron-storage pool: functions of plant apoplastic iron during stress

Trends in Plant Science, Год журнала: 2023, Номер 28(8), С. 941 - 954

Опубликована: Апрель 3, 2023

Язык: Английский

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Getting to the roots of N, P, and K uptake

Journal of Experimental Botany, Год журнала: 2023, Номер 74(6), С. 1784 - 1805

Опубликована: Янв. 27, 2023

Abstract The soil contributes to the main pool of essential mineral nutrients for plants. These are critical elements building blocks plant biomolecules, play fundamental roles in cell processes, and act various enzymatic reactions. roots entry point used within grow, develop, produce seeds. In this regard, a suite nutrient transport systems, sensors, signaling proteins function acquiring through roots. Mineral from chemical fertilizers, composed mainly nitrogen, phosphorus, potassium (NPK), added agricultural land maximize crop yields, worldwide. However, improving uptake use crops is economically environmentally sustainable agriculture. Therefore, we review molecular basis N, P, K into Remarkably, plants responsive heterogeneous distribution align root growth with nutrient-rich patches. We highlight relationship between environment system architecture. discuss exchange information shoot systems xylem phloem, which coordinates photosynthesis. size structure system, along abundance activity transporters, largely determine acquisition rate. Lastly, connections signaling.

Язык: Английский

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A CYBDOM protein impacts iron homeostasis and primary root growth under phosphate deficiency in Arabidopsis

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Янв. 11, 2024

Arabidopsis primary root growth response to phosphate (Pi) deficiency is mainly controlled by changes in apoplastic iron (Fe). Upon Pi deficiency, Fe deposition the apical meristem activates pathways leading arrest of maintenance and inhibition cell elongation. Here, we report that a member uncharacterized cytochrome b561 DOMON domain (CYBDOM) protein family, named CRR, promotes reduction an ascorbate-dependent manner controls deposition. Under low Pi, crr mutant shows enhanced associated with increased meristematic division. Conversely, CRR overexpression abolishes rendering insensitive Pi. The single hyp1 double mutant, harboring null allele another CYDOM tolerance high-Fe stress upon germination seedling growth. uptake translocation shoot results plants highly sensitive excess. Our identify ferric reductase implicated homeostasis developmental responses abiotic stress, reveal biological role for CYBDOM proteins plants.

Язык: Английский

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Ferric reduction by a CYBDOM protein counteracts increased iron availability in root meristems induced by phosphorus deficiency

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Янв. 11, 2024

Abstract To mobilize sparingly available phosphorus (P) in the rhizosphere, many plant species secrete malate to release P sorbed onto (hydr)oxides of aluminum and iron (Fe). In presence Fe, can provoke Fe over-accumulation root apoplast, triggering a series events that inhibit growth. Here, we identified HYPERSENSITIVE TO LOW P1 (HYP1), CYBDOM protein constituted DOMON cytochrome b 561 domain, as critical maintain cell elongation meristem integrity under low P. We demonstrate HYP1 mediates ascorbate-dependent trans-plasma membrane electron transport reduce ferric cupric substrates Xenopus laevis oocytes planta . expression is up-regulated response deficiency proximal zone apical meristem. Disruption leads increased callose accumulation causes significant transcriptional changes roots. further activity overcomes malate-induced accumulation, thereby preventing Fe-dependent growth arrest Collectively, our results uncover an metalloreductase protect meristems P-deficient plants from availability provide insights into physiological function yet poorly characterized but ubiquitous proteins.

Язык: Английский

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Review: Nutrient-nutrient interactions governing underground plant adaptation strategies in a heterogeneous environment

Plant Science, Год журнала: 2024, Номер 342, С. 112024 - 112024

Опубликована: Фев. 5, 2024

Язык: Английский

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Molecular mechanisms and genetic improvement of low‐phosphorus tolerance in rice

Plant Cell & Environment, Год журнала: 2022, Номер 46(4), С. 1104 - 1119

Опубликована: Окт. 8, 2022

Abstract Phosphorus (P) is a macronutrient required for plant growth and reproduction. Orthophosphate (Pi), the preferred P form uptake, easily fixed in soil, making it unavailable to plants. Limited phosphate rock resources, low fertilizer use efficiency high demands green agriculture production make important clarify molecular mechanisms underlying responses deficiency improve crops. Over past 20 years, tremendous progress has been made understanding regulatory of starvation response. Here, we systematically review current research on Pi acquisition, transport distribution from rhizosphere shoot; redistribution reuse during reproductive growth; arbuscular mycorrhizal symbiosis rice ( Oryza sativa L.) under deficiency. Furthermore, discuss several strategies boosting utilization yield rice.

Язык: Английский

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Recent advances in research on phosphate starvation signaling in plants

Journal of Plant Research, Год журнала: 2024, Номер 137(3), С. 315 - 330

Опубликована: Апрель 26, 2024

Phosphorus is indispensable for plant growth and development, with its status crucial determining crop productivity. Plants have evolved various biochemical, morphological, developmental responses to thrive under conditions of low P availability, as inorganic phosphate (Pi), the primary form uptake, often insoluble in soils. Over past 25 years, extensive research has focused on understanding these responses, collectively forming Pi starvation response system. This effort not only expanded our knowledge strategies cope (PS) but also confirmed their adaptive significance. Moreover, it identified characterized numerous components intricate regulatory network governing homeostasis. review emphasizes recent advances PS signaling, particularly highlighting physiological importance local signaling inhibiting root uncovering role TORC1 this process. Additionally, advancements shoot-root allocation a novel technique studying distribution plants are discussed. Furthermore, emerging data regulation plant-microorganism interactions by system, crosstalk between pathways starvation, phytohormones immunity, studies natural variation homeostasis addressed.

Язык: Английский

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Excessive iron deposition in root apoplast is involved in growth arrest of roots in response to low pH

Journal of Experimental Botany, Год журнала: 2024, Номер 75(10), С. 3188 - 3200

Опубликована: Фев. 24, 2024

The rhizotoxicity of protons (H+) in acidic soils is a fundamental constraint that results serious yield losses. However, the mechanisms underlying H+-mediated inhibition root growth are poorly understood. In this study, we revealed H+-induced Arabidopsis depends considerably on excessive iron deposition apoplast. Reducing such aberrant by decreasing supply or disrupting ferroxidases LOW PHOSPHATE ROOT 1 (LPR) and LPR2 attenuates inhibitory effect H+ primary efficiently. Further analysis showed triggers burst highly reactive oxygen species, consequently impairing normal development. Our study uncovered valuable strategy for improving ability plants to tolerate toxicity manipulating availability.

Язык: Английский

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Evolution of plant metabolism: the state-of-the-art

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2024, Номер 379(1914)

Опубликована: Сен. 29, 2024

Immense chemical diversity is one of the hallmark features plants. This chemo-diversity mainly underpinned by a highly complex and biodiverse biochemical machinery. Plant metabolic enzymes originated were inherited from their eukaryotic prokaryotic ancestors further diversified unprecedentedly high rates gene duplication functionalization experienced in land Unlike microbes, which display frequent horizontal transfer events multiple inputs energy organic carbon, plants predominantly rely on carbon generated CO 2 have relatively few transfers during recent evolutionary history. As such, plant networks evolved stepwise manner using existing as starting point under various constraints. That said, until recently, evolution only handful traits had been extensively investigated metabolism has received fraction attention of, development, for example. Advances metabolomics next-generation sequencing have, however, recently led to deeper understanding how wide range primary specialized (secondary) pathways both consequence natural selection domestication crop improvement processes. article part theme issue ‘The metabolism’.

Язык: Английский

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