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Aslam MM, Fritschi FB, Di Z, Wang G, Li H, Lam HM, Waseem M, Weifeng X, Zhang J. Overexpression of LaGRAS enhances phosphorus acquisition via increased root growth of phosphorus-deficient white lupin. PHYSIOLOGIA PLANTARUM 2023; 175:e13962. [PMID: 37343119 DOI: 10.1111/ppl.13962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/01/2023] [Accepted: 06/16/2023] [Indexed: 06/23/2023]
Abstract
The GRAS transcription factors play an indispensable role in plant growth and responses to environmental stresses. The GRAS gene family has extensively been explored in various plant species; however, the comprehensive investigation of GRAS genes in white lupin remains insufficient. In this study, bioinformatics analysis of white lupin genome revealed 51 LaGRAS genes distributed into 10 distinct phylogenetic clades. Gene structure analyses revealed that LaGRAS proteins were considerably conserved among the same subfamilies. Notably, 25 segmental duplications and a single tandem duplication showed that segmental duplication was the major driving force for the expansion of GRAS genes in white lupin. Moreover, LaGRAS genes exhibited preferential expression in young cluster root and mature cluster roots and may play key roles in nutrient acquisition, particularly phosphorus (P). To validate this, RT-qPCR analysis of white lupin plants grown under +P (normal P) and -P (P deficiency) conditions elucidated significant differences in the transcript level of GRAS genes. Among them, LaGRAS38 and LaGRAS39 were identified as potential candidates with induced expression in MCR under -P. Additionally, white lupin transgenic hairy root overexpressing OE-LaGRAS38 and OE-LaGRAS39 showed increased root growth, and P concentration in root and leaf compared to those with empty vector control, suggesting their role in P acquisition. We believe this comprehensive analysis of GRAS members in white lupin is a first step in exploring their role in the regulation of root growth, tissue development, and ultimately improving P use efficiency in legume crops under natural environments.
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Affiliation(s)
- Mehtab Muhammad Aslam
- College of Agriculture, Yangzhou University, Yangzhou, China
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
- College of Agriculture, Food and Natural Resources (CAFNR), Division of Plant Sciences & Technology, University of Missouri, Columbia, Missouri, USA
| | - Felix B Fritschi
- College of Agriculture, Food and Natural Resources (CAFNR), Division of Plant Sciences & Technology, University of Missouri, Columbia, Missouri, USA
| | - Zhang Di
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Guanqun Wang
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Haoxuan Li
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Hon-Ming Lam
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Muhammad Waseem
- College of Horticulture, Hainan University, Haikou, China
- Department of Botany, University of Narowal, Narowal, Pakistan
| | - Xu Weifeng
- College of Agriculture, Yangzhou University, Yangzhou, China
- Center for Plant Water-Use and Nutrition Regulation and College of Resource and Environment, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
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Pirona R, Frugis G, Locatelli F, Mattana M, Genga A, Baldoni E. Transcriptomic analysis reveals the gene regulatory networks involved in leaf and root response to osmotic stress in tomato. FRONTIERS IN PLANT SCIENCE 2023; 14:1155797. [PMID: 37332696 PMCID: PMC10272567 DOI: 10.3389/fpls.2023.1155797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/10/2023] [Indexed: 06/20/2023]
Abstract
Introduction Tomato (Solanum lycopersicum L.) is a major horticultural crop that is cultivated worldwide and is characteristic of the Mediterranean agricultural system. It represents a key component of the diet of billion people and an important source of vitamins and carotenoids. Tomato cultivation in open field often experiences drought episodes, leading to severe yield losses, since most modern cultivars are sensitive to water deficit. Water stress leads to changes in the expression of stress-responsive genes in different plant tissues, and transcriptomics can support the identification of genes and pathways regulating this response. Methods Here, we performed a transcriptomic analysis of two tomato genotypes, M82 and Tondo, in response to a PEG-mediated osmotic treatment. The analysis was conducted separately on leaves and roots to characterize the specific response of these two organs. Results A total of 6,267 differentially expressed transcripts related to stress response was detected. The construction of gene co-expression networks defined the molecular pathways of the common and specific responses of leaf and root. The common response was characterized by ABA-dependent and ABA-independent signaling pathways, and by the interconnection between ABA and JA signaling. The root-specific response concerned genes involved in cell wall metabolism and remodeling, whereas the leaf-specific response was principally related to leaf senescence and ethylene signaling. The transcription factors representing the hubs of these regulatory networks were identified. Some of them have not yet been characterized and can represent novel candidates for tolerance. Discussion This work shed new light on the regulatory networks occurring in tomato leaf and root under osmotic stress and set the base for an in-depth characterization of novel stress-related genes that may represent potential candidates for improving tolerance to abiotic stress in tomato.
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Affiliation(s)
- Raul Pirona
- National Research Council (CNR), Institute of Agricultural Biology and Biotechnology (IBBA), Milano, Italy
| | - Giovanna Frugis
- National Research Council (CNR), Institute of Agricultural Biology and Biotechnology (IBBA), Rome Unit, Roma, Italy
| | - Franca Locatelli
- National Research Council (CNR), Institute of Agricultural Biology and Biotechnology (IBBA), Milano, Italy
| | - Monica Mattana
- National Research Council (CNR), Institute of Agricultural Biology and Biotechnology (IBBA), Milano, Italy
| | - Annamaria Genga
- National Research Council (CNR), Institute of Agricultural Biology and Biotechnology (IBBA), Milano, Italy
| | - Elena Baldoni
- National Research Council (CNR), Institute of Agricultural Biology and Biotechnology (IBBA), Milano, Italy
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Abhary MK, Akhkha A. Effects of neodymium magneto-priming on seed germination and salinity tolerance in tomato. Bioelectromagnetics 2023; 44:47-56. [PMID: 36808751 DOI: 10.1002/bem.22438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 11/05/2022] [Accepted: 01/08/2023] [Indexed: 02/19/2023]
Abstract
Earth's biosphere is surrounded by magnetic fields that affect all living organisms. A plant's response to magnetic fields is displayed in terms of its seed's vigor, growth, and yield. Examining seed germination in such magnetic fields is the first step in the investigation of how magnetic fields might be used to enhance plant growth and maximize crop performance. In this study, salinity-sensitive Super Strain-B tomato seeds were primed with the northern and southern poles of neodymium magnets of 150, 200, and 250 mT. The magneto-primed seeds showed a significant increase in germination rate and speed, where the orientation of the magnet was identified as being crucial for germination rate and the orientation of seeds towards the magnet was shown to affect the germination speed. The primed plants exhibited enhanced growth characteristics, including longer shoots and roots, larger leaf area, more root hairs, higher water content, and more tolerance to salinity levels, up to 200 mM NaCl. All magneto-primed plants showed a significant decrease in chlorophyll content, continuous chlorophyll fluorescence yield (Ft), and quantum yield (QY). The salinity treatments decreased all chlorophyll parameters in control plants, significantly, but did not lower such parameters in magneto-primed tomatoes. The results of this study illustrate the positive effects of neodymium magnet on the growth and development of tomato plants in terms of their germination, growth, and salinity tolerance, and negatively affected the chlorophyll content in tomato leaves. © 2023 Bioelectromagnetics Society.
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Affiliation(s)
- Mohammad K Abhary
- Biology Department, Faculty of Science, Taibah University, Medinah, Saudi Arabia
| | - Abdullah Akhkha
- Biology Department, Faculty of Science, Taibah University, Medinah, Saudi Arabia
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Kou X, Han W, Kang J. Responses of root system architecture to water stress at multiple levels: A meta-analysis of trials under controlled conditions. FRONTIERS IN PLANT SCIENCE 2022; 13:1085409. [PMID: 36570905 PMCID: PMC9780461 DOI: 10.3389/fpls.2022.1085409] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 11/28/2022] [Indexed: 05/31/2023]
Abstract
Plants are exposed to increasingly severe drought events and roots play vital roles in maintaining plant survival, growth, and reproduction. A large body of literature has investigated the adaptive responses of root traits in various plants to water stress and these studies have been reviewed in certain groups of plant species at a certain scale. Nevertheless, these responses have not been synthesized at multiple levels. This paper screened over 2000 literatures for studies of typical root traits including root growth angle, root depth, root length, root diameter, root dry weight, root-to-shoot ratio, root hair length and density and integrates their drought responses at genetic and morphological scales. The genes, quantitative trait loci (QTLs) and hormones that are involved in the regulation of drought response of the root traits were summarized. We then statistically analyzed the drought responses of root traits and discussed the underlying mechanisms. Moreover, we highlighted the drought response of 1-D and 2-D root length density (RLD) distribution in the soil profile. This paper will provide a framework for an integrated understanding of root adaptive responses to water deficit at multiple scales and such insights may provide a basis for selection and breeding of drought tolerant crop lines.
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Affiliation(s)
- Xinyue Kou
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agriculture Sciences, Beijing, China
| | - Weihua Han
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agriculture Sciences, Beijing, China
| | - Jian Kang
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States
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Hou Y, Meng X, Sun K, Zhao M, Liu X, Yang T, Zhang Z, Su R. Anti-cancer effects of ginsenoside CK on acute myeloid leukemia in vitro and in vivo. Heliyon 2022; 8:e12106. [PMID: 36544827 PMCID: PMC9761710 DOI: 10.1016/j.heliyon.2022.e12106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/17/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Objectives Acute myeloid leukemia (AML) is a malignant disease characterized by clonal proliferation of myeloid cells, and its treatment continues to be a challenge due to high morbidity and mortality. Ginsenoside compound K, a major active metabolite of the protopanaxadiol-type ginsenosides, exhibits biological activities in various cancer cells and animal models. Here, we investigated the role of CK in anticancer potential in AML both in vitro and in vivo. Materials and methods To investigate the inhibitory effects of CK in AML cells, in vitro experiments, including cell viability assays, colony forming assays, and cell cycle and apoptosis assays were performed. AML animal experiment was established and quantitative analysis of lung tumor growth nodules and spleen weight and H&E staining were carried out to further determine the effects of CK on AML. In addition, the potential key genes induced and influenced by CK during treatment was identification by RNA-seq and qRT-PCR. Results CK suppressed AML cell activity and induced apoptosis and G1 cell cycle arrest based on the experiment results. Moreover, significantly down-regulated expression genes of BCL2, KIT, DNMT3A, MYC and CSF-1 and up-regulated expression gene of TET2 in CK treatment AML cells were discovered. Conclusion Our results demonstrated that CK could be used as an anti-AML drug with significant therapeutic efficacy and good biosafety.
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Affiliation(s)
- Yuzhu Hou
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130017, China
| | - Xiangru Meng
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130017, China
| | - Kaiju Sun
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130017, China
| | - Mingyue Zhao
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130017, China
| | - Xin Liu
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130017, China
| | - Tongtong Yang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130017, China
| | - Zhe Zhang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130017, China
- Corresponding author.
| | - Rui Su
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130017, China
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
- Corresponding author.
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Aslam MM, Pueyo JJ, Pang J, Yang J, Chen W, Chen H, Waseem M, Li Y, Zhang J, Xu W. Root acid phosphatases and rhizobacteria synergistically enhance white lupin and rice phosphorus acquisition. PLANT PHYSIOLOGY 2022; 190:2449-2465. [PMID: 36066452 PMCID: PMC9706455 DOI: 10.1093/plphys/kiac418] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/05/2022] [Indexed: 05/11/2023]
Abstract
The rhizosheath is a belowground area that acts as a communication hub at the root-soil interface to promote water and nutrient acquisition. Certain crops, such as white lupin (Lupinus albus), acquire large amounts of phosphorus (P), owing partially to exudation of acid phosphatases (APases). Plant growth-promoting rhizobacteria also increase soil P availability. However, potential synergistic effects of root APases and rhizosheath-associated microbiota on P acquisition require further research. In this study, we investigated the roles of root purple APases (PAPs) and plant growth-promoting rhizobacteria in rhizosheath formation and P acquisition under conditions of soil drying (SD) and P treatment (+P: soil with P fertilizer; -P: soil without fertilizer). We expressed purple acid phosphatase12 (LaPAP12) in white lupin and rice (Oryza sativa) plants and analyzed the rhizosheath-associated microbiome. Increased or heterologous LaPAP12 expression promoted APase activity and rhizosheath formation, resulting in increased P acquisition mainly under SD-P conditions. It also increased the abundance of members of the genus Bacillus in the rhizosheath-associated microbial communities of white lupin and rice. We isolated a phosphate-solubilizing, auxin-producing Bacillus megaterium strain from the rhizosheath of white lupin and used this to inoculate white lupin and rice plants. Inoculation promoted rhizosheath formation and P acquisition, especially in plants with increased LaPAP12 expression and under SD-P conditions, suggesting a functional role of the bacteria in alleviating P deficit stress via rhizosheath formation. Together, our results suggest a synergistic enhancing effect of LaPAP12 and plant growth-promoting rhizobacteria on rhizosheath formation and P acquisition under SD-P conditions.
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Affiliation(s)
- Mehtab Muhammad Aslam
- Joint International Research Laboratory of Water and Nutrient in Crops, Haixia Institute of Ecology and Environmental Engineering, College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Department of Biology, Hong Kong Baptist University, Hong Kong
- State Key Laboratory of Agrobiotechnology, Chinese University of Hong Kong, Hong Kong
| | - José J Pueyo
- Institute of Agricultural Sciences, ICA-CSIC, Madrid 28006, Spain
| | - Jiayin Pang
- School of Agriculture and Environment, UWA Institute of Agriculture, University of Western Australia, Perth, Western Australia 6009, Australia
| | - Jinyong Yang
- Joint International Research Laboratory of Water and Nutrient in Crops, Haixia Institute of Ecology and Environmental Engineering, College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Weiguo Chen
- Joint International Research Laboratory of Water and Nutrient in Crops, Haixia Institute of Ecology and Environmental Engineering, College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hao Chen
- Joint International Research Laboratory of Water and Nutrient in Crops, Haixia Institute of Ecology and Environmental Engineering, College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Muhammad Waseem
- College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Ying Li
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Hong Kong
- State Key Laboratory of Agrobiotechnology, Chinese University of Hong Kong, Hong Kong
| | - Weifeng Xu
- Joint International Research Laboratory of Water and Nutrient in Crops, Haixia Institute of Ecology and Environmental Engineering, College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Aslam MM, Karanja JK, Dodd IC, Waseem M, Weifeng X. Rhizosheath: An adaptive root trait to improve plant tolerance to phosphorus and water deficits? PLANT, CELL & ENVIRONMENT 2022; 45:2861-2874. [PMID: 35822342 PMCID: PMC9544408 DOI: 10.1111/pce.14395] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/07/2022] [Accepted: 07/11/2022] [Indexed: 06/09/2023]
Abstract
Drought and nutrient limitations adversely affect crop yields, with below-ground traits enhancing crop production in these resource-poor environments. This review explores the interacting biological, chemical and physical factors that determine rhizosheath (soil adhering to the root system) development, and its influence on plant water uptake and phosphorus acquisition in dry soils. Identification of quantitative trait loci for rhizosheath development indicate it is genetically determined, but the microbial community also directly (polysaccharide exudation) and indirectly (altered root hair development) affect its extent. Plants with longer and denser root hairs had greater rhizosheath development and increased P uptake efficiency. Moreover, enhanced rhizosheath formation maintains contact at the root-soil interface thereby assisting water uptake from drying soil, consequently improving plant survival in droughted environments. Nevertheless, it can be difficult to determine if rhizosheath development is a cause or consequence of improved plant adaptation to dry and nutrient-depleted soils. Does rhizosheath development directly enhance plant water and phosphorus use, or do other tolerance mechanisms allow plants to invest more resources in rhizosheath development? Much more work is required on the interacting genetic, physical, biochemical and microbial mechanisms that determine rhizosheath development, to demonstrate that selection for rhizosheath development is a viable crop improvement strategy.
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Affiliation(s)
- Mehtab Muhammad Aslam
- Center for Plant Water‐Use and Nutrition Regulation, College of Resource and EnvironmentFujian Agriculture and Forestry UniversityFuzhouFujianChina
- College of AgricultureYangzhou UniversityYangzhouJiangsuChina
- State Key Laboratory of Agrobiotechnology, School of Life SciencesThe Chinese University of Hong KongShatinHong Kong
| | - Joseph K. Karanja
- Center for Plant Water‐Use and Nutrition Regulation, College of Resource and EnvironmentFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Ian C. Dodd
- The Lancaster Environment CentreLancaster UniversityLancasterUK
| | | | - Xu Weifeng
- Center for Plant Water‐Use and Nutrition Regulation, College of Resource and EnvironmentFujian Agriculture and Forestry UniversityFuzhouFujianChina
- College of AgricultureYangzhou UniversityYangzhouJiangsuChina
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Zhang Z, Jatana BS, Campbell BJ, Gill J, Suseela V, Tharayil N. Cross-inoculation of rhizobiome from a congeneric ruderal plant imparts drought tolerance in maize (Zea mays) through changes in root morphology and proteome. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:54-71. [PMID: 35426964 PMCID: PMC9542220 DOI: 10.1111/tpj.15775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 04/12/2022] [Indexed: 06/14/2023]
Abstract
Rhizobiome confer stress tolerance to ruderal plants, yet their ability to alleviate stress in crops is widely debated, and the associated mechanisms are poorly understood. We monitored the drought tolerance of maize (Zea mays) as influenced by the cross-inoculation of rhizobiota from a congeneric ruderal grass Andropogon virginicus (andropogon-inoculum), and rhizobiota from organic farm maintained under mesic condition (organic-inoculum). Across drought treatments (40% field capacity), maize that received andropogon-inoculum produced two-fold greater biomass. This drought tolerance translated to a similar leaf metabolomic composition as that of the well-watered control (80% field capacity) and reduced oxidative damage, despite a lower activity of antioxidant enzymes. At a morphological-level, drought tolerance was associated with an increase in specific root length and surface area facilitated by the homeostasis of phytohormones promoting root branching. At a proteome-level, the drought tolerance was associated with upregulation of proteins related to glutathione metabolism and endoplasmic reticulum-associated degradation process. Fungal taxa belonging to Ascomycota, Mortierellomycota, Archaeorhizomycetes, Dothideomycetes, and Agaricomycetes in andropogon-inoculum were identified as potential indicators of drought tolerance. Our study provides a mechanistic understanding of the rhizobiome-facilitated drought tolerance and demonstrates a better path to utilize plant-rhizobiome associations to enhance drought tolerance in crops.
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Affiliation(s)
- Ziliang Zhang
- Department of Plant & Environmental SciencesClemson UniversityClemsonSCUSA
| | | | | | - Jasmine Gill
- Department of Plant & Environmental SciencesClemson UniversityClemsonSCUSA
| | - Vidya Suseela
- Department of Plant & Environmental SciencesClemson UniversityClemsonSCUSA
| | - Nishanth Tharayil
- Department of Plant & Environmental SciencesClemson UniversityClemsonSCUSA
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Kohli PS, Maurya K, Thakur JK, Bhosale R, Giri J. Significance of root hairs in developing stress-resilient plants for sustainable crop production. PLANT, CELL & ENVIRONMENT 2022; 45:677-694. [PMID: 34854103 DOI: 10.1111/pce.14237] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 11/15/2021] [Accepted: 11/21/2021] [Indexed: 06/13/2023]
Abstract
Root hairs represent a beneficial agronomic trait to potentially reduce fertilizer and irrigation inputs. Over the past decades, research in the plant model Arabidopsis thaliana has provided insights into root hair development, the underlying genetic framework and the integration of environmental cues within this framework. Recent years have seen a paradigm shift, where studies are now highlighting conservation and diversification of root hair developmental programs in other plant species and the agronomic relevance of root hairs in a wider ecological context. In this review, we specifically discuss the molecular evolution of the RSL (RHD Six-Like) pathway that controls root hair development and growth in land plants. We also discuss how root hairs contribute to plant performance as an active physiological rooting structure by performing resource acquisition, providing anchorage and constructing the rhizosphere with desirable physical, chemical and biological properties. Finally, we outline future research directions that can help achieve the potential of root hairs in developing sustainable agroecosystems.
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Affiliation(s)
| | - Kanika Maurya
- National Institute of Plant Genome Research, New Delhi, India
| | - Jitendra K Thakur
- National Institute of Plant Genome Research, New Delhi, India
- International Centre of Genetic Engineering and Biotechnology, New Delhi, India
| | - Rahul Bhosale
- Future Food Beacon of Excellence and School of Biosciences, University of Nottingham, Nottingham, UK
| | - Jitender Giri
- National Institute of Plant Genome Research, New Delhi, India
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