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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Inositol pyrophosphate catabolism by three families of phosphatases regulates plant growth and development

PLoS Genetics, Год журнала: 2024, Номер 20(11), С. e1011468 - e1011468

Опубликована: Ноя. 12, 2024

Inositol pyrophosphates (PP-InsPs) are nutrient messengers whose cellular levels precisely regulated. Diphosphoinositol pentakisphosphate kinases (PPIP5Ks) generate the active signaling molecule 1,5-InsP 8 . PPIP5Ks harbor phosphatase domains that hydrolyze PP-InsPs. Plant and Fungi Atypical Dual Specificity Phosphatases (PFA-DSPs) NUDIX phosphatases (NUDTs) also involved in PP-InsP degradation. Here, we analyze relative contributions of three different families to plant catabolism. We report biochemical characterization inositol pyrophosphate from Arabidopsis Marchantia polymorpha Overexpression PFA-DSP NUDT enzymes affects leads stunted growth phenotypes Arabidopsis. nudt17/18/21 knock-out mutants have altered pools gene expression patterns, but no apparent defects. In contrast, Mp pfa-dsp1 ge , nudt1 vip1 display severe developmental associated changes levels. Analysis supports a role for PP-InsPs phosphate signaling, additional functions nitrate homeostasis cell wall biogenesis. Simultaneous elimination two activities enhanced observed phenotypes. Taken together, PPIP5K, regulate development by collectively shaping pools.

Язык: Английский

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Recent Advances in Response to Environmental Signals during Arabidopsis Root Development

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 215, С. 109037 - 109037

Опубликована: Авг. 12, 2024

Язык: Английский

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Phosphorylation of cellulose synthases in plant responses to environmental changes

International Journal of Biological Macromolecules, Год журнала: 2024, Номер unknown, С. 139313 - 139313

Опубликована: Дек. 1, 2024

Язык: Английский

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Tip Growth Defective1 interacts with the cellulose synthase complex to regulate cellulose synthesis in Arabidopsis thaliana

PLoS ONE, Год журнала: 2024, Номер 19(2), С. e0292149 - e0292149

Опубликована: Фев. 15, 2024

Plant cells possess robust and flexible cell walls composed primarily of cellulose, a polysaccharide that provides structural support enables expansion. Cellulose is synthesised by the Synthase A (CESA) catalytic subunits, which form cellulose synthase complexes (CSCs). While significant progress has been made in unravelling CSC function, trafficking CSCs involvement post-translational modifications synthesis remain poorly understood. In order to deepen our understanding biosynthesis, this study utilised immunoprecipitation techniques with CESA6 as bait protein explore its interactors. We have successfully identified essential components complex and, notably, uncovered novel interactors associated trafficking, modifications, coordination wall synthesis. Moreover, we TIP GROWTH DEFECTIVE 1 (TIP1) S-acyl transferases (PATs) an interactor complex. confirmed interaction between TIP1 through multiple independent approaches. Further analysis revealed tip1 mutants exhibited stunted growth reduced levels crystalline leaves. These findings suggest positively influences potentially mediated role S-acylation

Язык: Английский

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Inositol pyrophosphate catabolism by three families of phosphatases controls plant growth and development

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Апрель 30, 2024

Abstract Inositol pyrophosphates (PP-InsPs) are nutrient messengers whose cellular concentration must be tightly regulated. Diphosphoinositol pentakisphosphate kinases (PPIP5Ks) generate the active signaling molecule 1,5-InsP 8 . PPIP5Ks contain additional phosphatase domains involved in PP-InsP catabolism. Plant and Fungi Atypical Dual Specificity Phosphatases (PFA-DSPs) NUDIX phosphatases (NUDTs) also hydrolyze PP-InsPs. Here we dissect relative contributions of three different families to plant catabolism signaling. We report biochemical characterization inositol pyrophosphate from Arabidopsis Marchantia polymorpha Overexpression PFA-DSP NUDT enzymes affects levels leads stunted growth phenotypes Arabidopsis. nudt17/18/21 knock-out mutants have altered pools gene expression patterns, but no apparent defects. In contrast, Mp pfa-dsp1 ge , nudt1 vip1 display severe developmental associated with changes levels. Analysis supports a role for PP-InsPs phosphate signaling, functions nitrate homeostasis cell wall biogenesis. Simultaneous removal two activities enhances observed phenotypes. Taken together, PPIP5K, play important roles development by collectively shaping pools. Author summary Organisms maintain adequate nutrients their cells tissues. One such is phosphorus, an essential building block membranes, nucleic acids energy metabolites. Plants take up phosphorus form inorganic require sufficient support development. It has been shown that plants other eukaryotic organisms "measure" using molecules. The serves as proxy phosphate, therefore synthesis degradation Here, contribute plants. together shape thereby affect Loss-of-function defects architecture, suggesting regulate processes beyond homeostasis.

Язык: Английский

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Root morphological and mechanical properties of Lespedeza bicolor Turcz. on slopes at different altitudes

Trees, Год журнала: 2024, Номер 39(1)

Опубликована: Дек. 12, 2024

Язык: Английский

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