Emerging roles of inositol pyrophosphates in signaling plant phosphorus status and phytohormone signaling

Wu, Tao; Wang, Chuang; Han, Bei; Li, Zhu; Yang, Xinyu; Wang, Wei; Ding, Guangda; Hammond, John P.; White, Philip J.; Xu, Fangsen; Shi, Lei

doi:10.1007/s11104-023-05976-x

Cited by 3 publications

(1 citation statement)

References 138 publications

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“…Ultimately, this process causes organic acids to exude from the roots and form a stable complex with Al, which allows P to become soluble for plant assimilation (Ligaba et al, 2004). Plant root architecture undergoes adaptive changes, including the inhibition of primary root growth and the increase in the number and length of lateral roots (Peŕet et al, 2011) modulated by the change in sensitivity of auxin receptors such as TIR1, under a P deficient condition (Wu et al, 2023). Upregulation of auxin receptors degrades auxin repressors, releasing auxin response factor, ARF19, which then leads to the activation of genes related to lateral root morphogenesis (Peŕez-Torres et al, 2008).…”

Section: Loc_os12g09300 Os12g0194900 Osaap10bmentioning

confidence: 99%

A meta-QTL analysis highlights genomic hotspots associated with phosphorus use efficiency in rice (Oryza sativa L.)

Navea,

Maung,

Yang

et al. 2023

Front. Plant Sci.

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Phosphorus use efficiency (PUE) is a complex trait, governed by many minor quantitative trait loci (QTLs) with small effects. Advances in molecular marker technology have led to the identification of QTLs underlying PUE. However, their practical use in breeding programs remains challenging due to the unstable effects in different genetic backgrounds and environments, interaction with soil status, and linkage drag. Here, we compiled PUE QTL information from 16 independent studies. A total of 192 QTLs were subjected to meta-QTL (MQTL) analysis and were projected into a high-density SNP consensus map. A total of 60 MQTLs, with significantly reduced number of initial QTLs and confidence intervals (CI), were identified across the rice genome. Candidate gene (CG) mining was carried out for the 38 MQTLs supported by multiple QTLs from at least two independent studies. Genes related to amino and organic acid transport and auxin response were found to be abundant in the MQTLs linked to PUE. CGs were cross validated using a root transcriptome database (RiceXPro) and haplotype analysis. This led to the identification of the eight CGs (OsARF8, OsSPX-MFS3, OsRING141, OsMIOX, HsfC2b, OsFER2, OsWRKY64, and OsYUCCA11) modulating PUE. Potential donors for superior PUE CG haplotypes were identified through haplotype analysis. The distribution of superior haplotypes varied among subspecies being mostly found in indica but were largely scarce in japonica. Our study offers an insight on the complex genetic networks that modulate PUE in rice. The MQTLs, CGs, and superior CG haplotypes identified in our study are useful in the combination of beneficial alleles for PUE in rice.

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Section: Loc_os12g09300 Os12g0194900 Osaap10bmentioning

confidence: 99%

A meta-QTL analysis highlights genomic hotspots associated with phosphorus use efficiency in rice (Oryza sativa L.)

Navea,

Maung,

Yang

et al. 2023

Front. Plant Sci.

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Eucalypt seedlings lack a clear phosphate starvation response under low phosphorus availability

Bulgarelli,

Araujo,

Engel

et al. 2024

Theor. Exp. Plant Physiol.

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Inositol polyphosphates regulate resilient mechanisms in the green algaChlamydomonas reinhardtiito adapt to extreme nutrient conditions

Bedera-García,

García-Gómez,

Personat

et al. 2024

Preprint

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In the actual context of climate changing environments, photosynthetic organisms need to adapt to more extreme conditions. Microalgae can be excellent organisms to understand molecular mechanisms that activate survival strategies under stress. Chlamydomonas reinhardtii signaling mutants are extremely useful to decipher which strategies they use to cope with changeable environments. In this study, we conducted prolonged starvation in wild type and vip1-1 Chlamydomonas cells. The mutant vip1-1 has an altered profile of pyroinositol polyphosphates (PP-InsPs) which are signaling molecules present in all eukaryotes. These molecules have been connected to P signaling in other organisms including plants but their implications in other nutrient signaling is still under evaluation. After prolonged starvation, WT and vip1-1 showed important differences in the levels of chlorophyll and photosystem II (PSII) activity. We also performed a metabolomic analysis under these conditions and found an overall decrease in different organic compounds such as amino acids including arginine and its precursors and tryptophan which is considered as a signaling molecule itself in plants. In addition, we observed significant differences in RNA levels of genes related to nitrogen assimilation that are under the control of NIT2 transcription factor. Overall our data indicate an important role of PP-InsPs in the regulation of nutrient starvation especially regarding N assimilation and C distribution. These data are of great importance for the generation of resilient strains to be used in open ponds and high capacity bioreactors.

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Emerging roles of inositol pyrophosphates in signaling plant phosphorus status and phytohormone signaling

Cited by 3 publications

References 138 publications

A meta-QTL analysis highlights genomic hotspots associated with phosphorus use efficiency in rice (Oryza sativa L.)

A meta-QTL analysis highlights genomic hotspots associated with phosphorus use efficiency in rice (Oryza sativa L.)

Eucalypt seedlings lack a clear phosphate starvation response under low phosphorus availability

Inositol polyphosphates regulate resilient mechanisms in the green algaChlamydomonas reinhardtiito adapt to extreme nutrient conditions

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