ArticlePlant biotechnology journal2017
Improvement in phosphate acquisition and utilization by a secretory purple acid phosphatase (OsPAP21b) in rice.
Article in Plant biotechnology journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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43 citing papers in PubMed, 168 citations in OpenAlex.
- Adaptation mechanisms of low-phosphorus stress in plants: physiological responses, molecular regulation, and future perspectives.Frontiers in plant science · 2026Review
- Editing cis-elements of OsPHO1;2 improved phosphate transport and yield in rice.Plant biotechnology journal · 2025Article
- Screening of Germplasm Resources with Low-Phosphorus Tolerance During the Seedling Stage of Rice.Plants (Basel, Switzerland) · 2025Article
- TheInternational journal of molecular sciences · 2025Article
- Identification and Expression Analysis of Acid Phosphatase Gene (Plants (Basel, Switzerland) · 2025Article
- From genes to traits: maximizing phosphorus utilization efficiency in crop plants.Frontiers in plant science · 2025Review
- Analysis and profiling of the purple acid phosphatase gene family in wheat (Triticum aestivum L.).Protoplasma · 2025Article
- Genome-wide association study identified BnaPAP17 genes involved in exogenous ATP utilization and regulating phosphorous content in Brassica napus.Plant cell reports · 2024Article
- Rice A20/AN1 protein, OsSAP10, confers water-deficit stress tolerance via proteasome pathway and positive regulation of ABA signaling in Arabidopsis.Plant cell reports · 2024Article
- Opportunity for genome engineering to enhance phosphate homeostasis in crops.Physiology and molecular biology of plants : an international journal of functional plant biology · 2024Review
- Genome-wide association study for biomass accumulation traits in soybean.Molecular breeding : new strategies in plant improvement · 2023Article
- Biochemical and Molecular Responses Underlying the Contrasting Phosphorus Use Efficiency in Ryegrass Cultivars.Plants (Basel, Switzerland) · 2023Article
- Purple acid phosphatases in coffee-genome-wide identification and the transcriptional profile of selected members in roots upon Pi starvation.3 Biotech · 2022Article
- Root acid phosphatases and rhizobacteria synergistically enhance white lupin and rice phosphorus acquisition.Plant physiology · 2022Article
- Article
- Multi-trait association study identifies loci associated with tolerance of low phosphorus in Oryza sativa and its wild relatives.Scientific reports · 2022Article
- Purple acid phosphatases: roles in phosphate utilization and new emerging functions.Plant cell reports · 2022Review
- Phosphate-deprivation and damage signalling by extracellular ATP.Frontiers in plant science · 2022Article
- Physiological responses and transcriptomic changes reveal the mechanisms underlying adaptation of Stylosanthes guianensis to phosphorus deficiency.BMC plant biology · 2021Article
- Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Phosphate (Pi) deficiency in soil system is a limiting factor for rice growth and yield. Majority of the soil phosphorus (P) is organic in nature, not readily available for root uptake. Low Pi-inducible purple acid phosphatases (PAPs) are hypothesized to enhance the availability of Pi in soil and cellular system. However, information on molecular and physiological roles of rice PAPs is very limited. Here, we demonstrate the role of a novel rice PAP, OsPAP21b in improving plant utilization of organic-P. OsPAP21b was found to be under the transcriptional control of OsPHR2 and strictly regulated by plant Pi status at both transcript and protein levels. Biochemically, OsPAP21b showed hydrolysis of several organophosphates at acidic pH and possessed sufficient thermostability befitting for high-temperature rice ecosystems with acidic soils. Interestingly, OsPAP21b was revealed to be a secretory PAP and encodes a distinguishable major APase (acid phosphatase) isoform under low Pi in roots. Further, OsPAP21b-overexpressing transgenics showed increased biomass, APase activity and P content in both hydroponics supplemented with organic-P sources and soil containing organic manure as sole P source. Additionally, overexpression lines depicted increased root length, biomass and lateral roots under low Pi while RNAi lines showed reduced root length and biomass as compared to WT. In the light of these evidences, present study strongly proposes OsPAP21b as a useful candidate for improving Pi acquisition and utilization in rice.
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