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Soumya PR, Vengavasi K, Pandey R. Adaptive strategies of plants to conserve internal phosphorus under P deficient condition to improve P utilization efficiency. Physiol Mol Biol Plants 2022; 28:1981-1993. [PMID: 36573147 PMCID: PMC9789281 DOI: 10.1007/s12298-022-01255-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Abstract
Phosphorus (P) is one of the limiting factors for plant growth and productivity due to its slow diffusion and immobilization in the soil which necessitates application of phosphatic fertilizers to meet the crop demand and obtain maximum yields. However, plants have evolved mechanisms to adapt to low P stress conditions either by increasing acquisition (alteration of belowground processes) or by internal inorganic P (Pi) utilization (cellular Pi homeostasis) or both. In this review, we have discussed the adaptive strategies that conserve the use of P and maintain cellular Pi homeostasis in the cytoplasm. These strategies involve modification in membrane lipid composition, flavanol/anthocyanin level, scavenging and reutilization of Pi adsorbed in cell wall pectin, remobilization of Pi during senescence by enzymes like RNases and purple acid phosphatases, alternative mitochondrial electron transport, and glycolytic pathways. The remobilization of Pi from senescing tissues and its internal redistribution to various cellular organelles is mediated by various Pi transporters. Although much efforts have been made to enhance P acquisition efficiency, an understanding of the physiological mechanisms conserving internal Pi and their manipulation would be useful for plants that can utilize P more efficiently to produce optimum growth per unit P uptake.
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Affiliation(s)
- Preman R. Soumya
- Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012 India
- Present Address: Regional Agricultural Research Station, Kerala Agricultural University, Ambalavayal, Wayanad, Kerala 673593 India
| | - Krishnapriya Vengavasi
- Division of Crop Production, ICAR-Sugarcane Breeding Institute, Coimbatore, Tamil Nadu 641007 India
| | - Renu Pandey
- Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012 India
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Soumya PR, Burridge AJ, Singh N, Batra R, Pandey R, Kalia S, Rai V, Edwards KJ. Population structure and genome-wide association studies in bread wheat for phosphorus efficiency traits using 35 K Wheat Breeder's Affymetrix array. Sci Rep 2021; 11:7601. [PMID: 33828173 PMCID: PMC8027818 DOI: 10.1038/s41598-021-87182-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 03/15/2021] [Indexed: 02/02/2023] Open
Abstract
Soil bioavailability of phosphorus (P) is a major concern for crop productivity worldwide. As phosphatic fertilizers are a non-renewable resource associated with economic and environmental issues so, the sustainable option is to develop P use efficient crop varieties. We phenotyped 82 diverse wheat (Triticum aestivum L.) accessions in soil and hydroponics at low and sufficient P. To identify the genic regions for P efficiency traits, the accessions were genotyped using the 35 K-SNP array and genome-wide association study (GWAS) was performed. The high-quality SNPs across the genomes were evenly distributed with polymorphic information content values varying between 0.090 and 0.375. Structure analysis revealed three subpopulations (C1, C2, C3) and the phenotypic responses of these subpopulations were assessed for P efficiency traits. The C2 subpopulation showed the highest genetic variance and heritability values for numerous agronomically important traits as well as strong correlation under both P levels in soil and hydroponics. GWAS revealed 78 marker-trait associations (MTAs) but only 35 MTAs passed Bonferroni Correction. A total of 297 candidate genes were identified for these MTAs and their annotation suggested their involvement in several biological process. Out of 35, nine (9) MTAs were controlling polygenic trait (two controlling four traits, one controlling three traits and six controlling two traits). These multi-trait MTAs (each controlling two or more than two correlated traits) could be utilized for improving bread wheat to tolerate low P stress through marker-assisted selection (MAS).
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Affiliation(s)
- Preman R. Soumya
- grid.418196.30000 0001 2172 0814Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012 India ,grid.459442.a0000 0001 2164 6327Present Address: Regional Agricultural Research Station, Kerala Agricultural University, Ambalavayal, Wayanad, 673593 Kerala India
| | - Amanda J. Burridge
- grid.5337.20000 0004 1936 7603Life Sciences, University of Bristol, 24 Tyndall Avenue, Bristol, BS8 1TQ UK
| | - Nisha Singh
- grid.418105.90000 0001 0643 7375ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi, 110 012 India
| | - Ritu Batra
- grid.418196.30000 0001 2172 0814Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012 India
| | - Renu Pandey
- grid.418196.30000 0001 2172 0814Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012 India
| | - Sanjay Kalia
- Department of Biotechnology, C.G.O Complex, Lodhi Road, New Delhi, 110003 India
| | - Vandana Rai
- grid.418105.90000 0001 0643 7375ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi, 110 012 India
| | - Keith J. Edwards
- grid.5337.20000 0004 1936 7603Life Sciences, University of Bristol, 24 Tyndall Avenue, Bristol, BS8 1TQ UK
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