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Gaddam SR, Bhatia C, Sharma A, Badola PK, Saxena G, Trivedi PK. miR775 integrates light, sucrose and auxin associated pathways to regulate root growth in Arabidopsis thaliana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 313:111073. [PMID: 34763865 DOI: 10.1016/j.plantsci.2021.111073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
MicroRNAs (miRNAs), a class of single-stranded non-coding RNA of 20-24 nucleotides, regulate gene expression by target gene transcript cleavage or translation inhibition. The phytohormone auxin is a crucial regulator of almost every process involved in plant growth and development. Several studies have demonstrated the involvement of miRNA(s) in the regulation of the auxin signaling pathway and plant development. However, very few studies have identified the auxin-mediated regulation of miRNA(s). In this study, we reveal the detailed mechanism of auxin-mediated regulation of the cell wall-related miR775- Galactosyl transferase (GalT) module, which plays an important role in root growth in Arabidopsis thaliana. We also showed two interdependent mechanisms by which miR775 regulates root growth: miR775-GalT and light-mediated sucrose-dependent pathways. Treatment of GUS reporter lines with Indole Acetic Acid (IAA), sucrose, and light apparently enhanced the abundance of miR775 in root tissue. miR775 overexpressing (miR775OX) lines showed changes in root architecture, including increased primary root growth and root hair, by targeting GalT. miR775OX lines also showed tolerance toward low Pi. These results provide new insights into the auxin regulation of cell wall-related miR775 and suggest its significant role in plant root growth and development by modifying the cell wall.
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Affiliation(s)
- Subhash Reddy Gaddam
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial Research (CSIR-NBRI), Rana Pratap Marg, Lucknow, 226001, India; Department of Botany, University of Lucknow, Lucknow, 226007, India
| | - Chitra Bhatia
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial Research (CSIR-NBRI), Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ashish Sharma
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial Research (CSIR-NBRI), Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Poorwa Kamal Badola
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial Research (CSIR-NBRI), Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Gauri Saxena
- Department of Botany, University of Lucknow, Lucknow, 226007, India
| | - Prabodh Kumar Trivedi
- CSIR-National Botanical Research Institute, Council of Scientific and Industrial Research (CSIR-NBRI), Rana Pratap Marg, Lucknow, 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India; CSIR- Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP) P.O. CIMAP, Near Kukrail Picnic Spot, Lucknow, 226 015, India.
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Banerjee S, Sirohi A, Ansari AA, Gill SS. Role of small RNAs in abiotic stress responses in plants. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.plgene.2017.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Kumar S, Verma S, Trivedi PK. Involvement of Small RNAs in Phosphorus and Sulfur Sensing, Signaling and Stress: Current Update. FRONTIERS IN PLANT SCIENCE 2017; 8:285. [PMID: 28344582 PMCID: PMC5344913 DOI: 10.3389/fpls.2017.00285] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 02/16/2017] [Indexed: 05/14/2023]
Abstract
Plants require several essential mineral nutrients for their growth and development. These nutrients are required to maintain physiological processes and structural integrity in plants. The root architecture has evolved to absorb nutrients from soil and transport them to other parts of the plant. Nutrient deficiency affects several physiological and biological processes in plants and leads to reduction in crop productivity and yield. To compensate this adversity, plants have developed adaptive mechanisms to enhance the acquisition, conservation, and mobilization of these nutrients under deficient or adverse conditions. In addition, plants have evolved an intricate nexus of complex signaling cascades, which help in nutrient sensing and uptake as well as to maintain nutrient homeostasis. In recent years, small non-coding RNAs such as micro RNAs (miRNAs) and endogenous small interfering RNAs have emerged as important component in regulating plant stress responses. A set of these small RNAs (sRNAs) have been implicated in regulating various processes involved in nutrient uptake, assimilation, and deficiency. In response to phosphorus (P) and sulphur (S) deficiencies, role of sRNAs, miR395 and miR399, have been identified to be instrumental; however, many more miRNAs might be involved in regulating the plant response to these nutrient stresses. These sRNAs modulate expression of target genes in response to P and S deficiencies and regulate their uptake and utilization for proper growth and development of the plant. This review summarizes the current understanding of uptake, sensing, and signaling of P and S and highlights the regulatory role of sRNAs in adaptive responses to these nutrient stresses in plants.
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Affiliation(s)
- Smita Kumar
- Council of Scientific and Industrial Research – National Botanical Research InstituteLucknow, India
- Centre of Bio-Medical ResearchSanjay Gandhi Post-Graduate Institute of Medical Sciences Lucknow, India
- *Correspondence: Prabodh K. Trivedi, ; Smita Kumar,
| | - Saurabh Verma
- Council of Scientific and Industrial Research – National Botanical Research InstituteLucknow, India
- Department of Biotechnology, Babasaheb Bhimrao Ambedkar UniversityLucknow, India
| | - Prabodh K. Trivedi
- Council of Scientific and Industrial Research – National Botanical Research InstituteLucknow, India
- *Correspondence: Prabodh K. Trivedi, ; Smita Kumar,
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Mao YB, Xue XY, Tao XY, Yang CQ, Wang LJ, Chen XY. Cysteine protease enhances plant-mediated bollworm RNA interference. PLANT MOLECULAR BIOLOGY 2013; 83:119-29. [PMID: 23460027 PMCID: PMC3755213 DOI: 10.1007/s11103-013-0030-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 02/15/2013] [Indexed: 05/17/2023]
Abstract
Oral ingestion of plant-expressed double stranded RNA (dsRNA) triggers target gene suppression in insect. An important step of this process is the transmission of dsRNA from plant to midgut cells. Insect peritrophic matrix (PM) presents a barrier that prevents large molecules from entering midgut cells. Here, we show that uptake of plant cysteine proteases, such as GhCP1 from cotton (Gossypium hirsutum) and AtCP2 from Arabidopsis, by cotton bollworm (Helicoverpa armigera) larvae resulted in attenuating the PM. When GhCP1 or AtCP2 pre-fed larvae were transferred to gossypol-containing diet, the bollworm accumulated higher content of gossypol in midgut. Larvae previously ingested GhCP1 or AtCP2 were more susceptible to infection by Dendrolimus punctatus cytoplasmic polyhedrosis virus (DpCPV), a dsRNA virus. Furthermore, the pre-fed larvae exhibited enhanced RNAi effects after ingestion of the dsRNA-expressing plant. The bollworm P450 gene CYP6AE14 is involved in the larval tolerance to gossypol; cotton plants producing dsRNA of CYP6AE14 (dsCYP6AE14) were more resistant to bollworm feeding (Mao et al. in Transgenic Res 20:665-673, 2011). We found that cotton plants harboring both 35S:dsCYP6AE14 and 35S:GhCP1 were better protected from bollworm than either of the single-transgene lines. Our results demonstrate that plant cysteine proteases, which have the activity of increasing PM permeability, can be used to improve the plant-mediated RNAi against herbivorous insects.
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Affiliation(s)
- Ying-Bo Mao
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032 People’s Republic of China
| | - Xue-Yi Xue
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032 People’s Republic of China
| | - Xiao-Yuan Tao
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032 People’s Republic of China
| | - Chang-Qing Yang
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032 People’s Republic of China
| | - Ling-Jian Wang
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032 People’s Republic of China
| | - Xiao-Ya Chen
- National Key Laboratory of Plant Molecular Genetics, National Plant Gene Research Center, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, 200032 People’s Republic of China
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Guleria P, Mahajan M, Bhardwaj J, Yadav SK. Plant small RNAs: biogenesis, mode of action and their roles in abiotic stresses. GENOMICS, PROTEOMICS & BIOINFORMATICS 2011; 9:183-99. [PMID: 22289475 PMCID: PMC5054152 DOI: 10.1016/s1672-0229(11)60022-3] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 10/21/2011] [Indexed: 01/01/2023]
Abstract
Small RNAs (sRNAs) are 18-30 nt non-coding regulatory elements found in diverse organisms, which were initially identified as small double-stranded RNAs in Caenorhabditis elegans. With the development of new and improved technologies, sRNAs have also been identified and characterized in plant systems. Among them, micro RNAs (miRNAs) and small interfering RNAs (siRNAs) are found to be very important riboregulators in plants. Various types of sRNAs differ in their mode of biogenesis and in their function of gene regulation. sRNAs are involved in gene regulation at both transcriptional and post-transcriptional levels. They are known to regulate growth and development of plants. Furthermore, sRNAs especially plant miRNAs have been found to be involved in various stress responses, such as oxidative, mineral nutrient deficiency, dehydration, and even mechanical stimulus. Therefore, in the present review, we focus on the current understanding of biogenesis and regulatory mechanisms of plant sRNAs and their responses to various abiotic stresses.
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Affiliation(s)
- Praveen Guleria
- Plant Metabolic Engineering, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, CSIR, Palampur 176061 (HP), India
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MicroRNAs in tomato plants. SCIENCE CHINA-LIFE SCIENCES 2011; 54:599-605. [DOI: 10.1007/s11427-011-4188-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Accepted: 04/22/2011] [Indexed: 11/26/2022]
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Focused on Frontier Sciences and Dedicated to Academic Exchanges-<I>Science China: Life Sciences</I> in 2009 at a New Beginning. PROG BIOCHEM BIOPHYS 2011. [DOI: 10.3724/sp.j.1206.2010.00555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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The Recent Progress of Non-coding RNA and RNomics. PROG BIOCHEM BIOPHYS 2010. [DOI: 10.3724/sp.j.1206.2010.00475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Research frontiers highlighted in Science China Life Sciences in 2009. CHINESE SCIENCE BULLETIN-CHINESE 2010. [DOI: 10.1007/s11434-010-4229-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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