1
|
Wang J, Song Y, Wang G, Shi L, Shen Y, Liu W, Xu Y, Lou X, Jia W, Zhang M, Shang W, He S, Wang Z. PoARRO-1 regulates adventitious rooting through interaction with PoIAA27b in Paeonia ostii. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 347:112204. [PMID: 39059631 DOI: 10.1016/j.plantsci.2024.112204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/18/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
Adventitious root (AR) formation is a limiting factor in the vegetative propagation of tree peony (Paeonia suffruticosa Andr.). PoARRO-1, which encodes an auxin oxidase involved in AR formation, plays a role in the root development of P. ostii, but its associated molecular regulatory mechanisms are not yet understood. In this study, we examined the role of PoARRO-1 in AR formation in P. ostii. The overexpression of PoARRO-1 in P. ostii test-tube plantlets led to a notable enhancement in both the rooting rate and the average number of ARs in vitro, as well as increased activities of peroxidase (POD), superoxide dismutase (SOD), and indoleacetic acid oxidase (IAAO). PoARRO-1 was involved in the conversion of IAA-Asp and IAA-Glu to OxIAA and promoted IAA oxidation. RNA sequencing analysis revealed that PoARRO-1 overexpression led to upregulation of enzyme activity, auxin metabolism related genes. Further analyses showed that PoARRO-1 interacted with the 1-175 aa position of PoIAA27b to regulate the formation of ARs. We therefore propose that PoARRO-1 interacts with PoIAA27b to promote AR formation, and it may be useful targets for enhancing the in vitro propagation of P. ostii.
Collapse
Affiliation(s)
- Jiange Wang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Yinglong Song
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Guiqing Wang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Liyun Shi
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Yuxiao Shen
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Weichao Liu
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Yufeng Xu
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
| | - Xueyuan Lou
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Wenqing Jia
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Minhuan Zhang
- College of Landscape Architecture, Central South University of Forestry and Technology, Changsha 410004, China
| | - Wenqian Shang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China.
| | - Songlin He
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China.
| | - Zheng Wang
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China.
| |
Collapse
|
2
|
Tang C, Zhang Y, Liu X, Zhang B, Si J, Xia H, Fan S, Kong L. Nitrate Starvation Induces Lateral Root Organogenesis in Triticum aestivum via Auxin Signaling. Int J Mol Sci 2024; 25:9566. [PMID: 39273513 PMCID: PMC11395443 DOI: 10.3390/ijms25179566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2024] [Revised: 08/31/2024] [Accepted: 09/01/2024] [Indexed: 09/15/2024] Open
Abstract
The lateral root (LR) is an essential component of the plant root system, performing important functions for nutrient and water uptake in plants and playing a pivotal role in cereal crop productivity. Nitrate (NO3-) is an essential nutrient for plants. In this study, wheat plants were grown in 1/2 strength Hoagland's solution containing 5 mM NO3- (check; CK), 0.1 mM NO3- (low NO3-; LN), or 0.1 mM NO3- plus 60 mg/L 2,3,5-triiodobenzoic acid (TIBA) (LNT). The results showed that LN increased the LR number significantly at 48 h after treatment compared with CK, while not increasing the root biomass, and LNT significantly decreased the LR number and root biomass. The transcriptomic analysis showed that LN induced the expression of genes related to root IAA synthesis and transport and cell wall remodeling, and it was suppressed in the LNT conditions. A physiological assay revealed that the LN conditions increased the activity of IAA biosynthesis-related enzymes, the concentrations of tryptophan and IAA, and the activity of cell wall remodeling enzymes in the roots, whereas the content of polysaccharides in the LRP cell wall was significantly decreased compared with the control. Fourier-transform infrared spectroscopy and atomic microscopy revealed that the content of cell wall polysaccharides decreased and the cell wall elasticity of LR primordia (LRP) increased under the LN conditions. The effects of LN on IAA synthesis and polar transport, cell wall remodeling, and LR development were abolished when TIBA was applied. Our findings indicate that NO3- starvation may improve auxin homeostasis and the biological properties of the LRP cell wall and thus promote LR initiation, while TIBA addition dampens the effects of LN on auxin signaling, gene expression, physiological processes, and the root architecture.
Collapse
Affiliation(s)
- Chengming Tang
- College of Life Science, Shandong Normal University, Jinan 250014, China
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Yunxiu Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Xiao Liu
- College of Life Science, Shandong Normal University, Jinan 250014, China
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Bin Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Jisheng Si
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Haiyong Xia
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Shoujin Fan
- College of Life Science, Shandong Normal University, Jinan 250014, China
| | - Lingan Kong
- College of Life Science, Shandong Normal University, Jinan 250014, China
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| |
Collapse
|
3
|
Kuznetsova X, Dodueva I, Afonin A, Gribchenko E, Danilov L, Gancheva M, Tvorogova V, Galynin N, Lutova L. Whole-Genome Sequencing and Analysis of Tumour-Forming Radish ( Raphanus sativus L.) Line. Int J Mol Sci 2024; 25:6236. [PMID: 38892425 PMCID: PMC11172632 DOI: 10.3390/ijms25116236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024] Open
Abstract
Spontaneous tumour formation in higher plants can occur in the absence of pathogen invasion, depending on the plant genotype. Spontaneous tumour formation on the taproots is consistently observed in certain inbred lines of radish (Raphanus sativus var. radicula Pers.). In this paper, using Oxford Nanopore and Illumina technologies, we have sequenced the genomes of two closely related radish inbred lines that differ in their ability to spontaneously form tumours. We identified a large number of single nucleotide variants (amino acid substitutions, insertions or deletions, SNVs) that are likely to be associated with the spontaneous tumour formation. Among the genes involved in the trait, we have identified those that regulate the cell cycle, meristem activity, gene expression, and metabolism and signalling of phytohormones. After identifying the SNVs, we performed Sanger sequencing of amplicons corresponding to SNV-containing regions to validate our results. We then checked for the presence of SNVs in other tumour lines of the radish genetic collection and found the ERF118 gene, which had the SNVs in the majority of tumour lines. Furthermore, we performed the identification of the CLAVATA3/ESR (CLE) and WUSCHEL (WOX) genes and, as a result, identified two unique radish CLE genes which probably encode proteins with multiple CLE domains. The results obtained provide a basis for investigating the mechanisms of plant tumour formation and also for future genetic and genomic studies of radish.
Collapse
Affiliation(s)
- Xenia Kuznetsova
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, 199034 Saint Petersburg, Russia; (I.D.); (L.D.); (V.T.); (N.G.); (L.L.)
| | - Irina Dodueva
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, 199034 Saint Petersburg, Russia; (I.D.); (L.D.); (V.T.); (N.G.); (L.L.)
| | - Alexey Afonin
- All-Russia Research Institute for Agricultural Microbiology, 190608 Saint Petersburg, Russia (E.G.)
| | - Emma Gribchenko
- All-Russia Research Institute for Agricultural Microbiology, 190608 Saint Petersburg, Russia (E.G.)
| | - Lavrentii Danilov
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, 199034 Saint Petersburg, Russia; (I.D.); (L.D.); (V.T.); (N.G.); (L.L.)
| | - Maria Gancheva
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, 199034 Saint Petersburg, Russia; (I.D.); (L.D.); (V.T.); (N.G.); (L.L.)
| | - Varvara Tvorogova
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, 199034 Saint Petersburg, Russia; (I.D.); (L.D.); (V.T.); (N.G.); (L.L.)
- Plant Biology and Biotechnology Department, Sirius University of Science and Technology, 1 Olympic Avenue, 354340 Sochi, Russia
| | - Nikita Galynin
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, 199034 Saint Petersburg, Russia; (I.D.); (L.D.); (V.T.); (N.G.); (L.L.)
| | - Lyudmila Lutova
- Department of Genetics and Biotechnology, Faculty of Biology, Saint Petersburg State University, 199034 Saint Petersburg, Russia; (I.D.); (L.D.); (V.T.); (N.G.); (L.L.)
- Plant Biology and Biotechnology Department, Sirius University of Science and Technology, 1 Olympic Avenue, 354340 Sochi, Russia
| |
Collapse
|
4
|
Huang X, Lu Z, Zhai L, Li N, Yan H. The Small Auxin-Up RNA SAUR10 Is Involved in the Promotion of Seedling Growth in Rice. PLANTS (BASEL, SWITZERLAND) 2023; 12:3880. [PMID: 38005777 PMCID: PMC10675480 DOI: 10.3390/plants12223880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/31/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023]
Abstract
Small auxin-up-regulated RNAs (SAURs) are genes rapidly activated in response to auxin hormones, significantly affecting plant growth and development. However, there is limited information available about the specific functions of SAURs in rice due to the presence of extensive redundant genes. In this study, we found that OsSAUR10 contains a conserved downstream element in its 3' untranslated region that causes its transcripts to be unstable, ultimately leading to the immediate degradation of the mRNA in rice. In our investigation, we discovered that OsSAUR10 is located in the plasma membrane, and its expression is regulated in a tissue-specific, developmental, and hormone-dependent manner. Additionally, we created ossaur10 mutants using the CRISPR/Cas9 method, which resulted in various developmental defects such as dwarfism, narrow internodes, reduced tillers, and lower yield. Moreover, histological observation comparing wild-type and two ossaur10 mutants revealed that OsSAUR10 was responsible for cell elongation. However, overexpression of OsSAUR10 resulted in similar phenotypes to the wild-type. Our research also indicated that OsSAUR10 plays a role in regulating the expression of two groups of genes involved in auxin biosynthesis (OsYUCCAs) and auxin polar transport (OsPINs) in rice. Thus, our findings suggest that OsSAUR10 acts as a positive plant growth regulator by contributing to auxin biosynthesis and polar transport.
Collapse
Affiliation(s)
- Xiaolong Huang
- School of Life Sciences, Guizhou Normal University, Guiyang 550001, China; (X.H.); (L.Z.); (N.L.)
- Key Laboratory of Plant Physiology and Development Regulation, Guizhou Normal University, Guiyang 550001, China
- Laboratory of State Forestry Administration on Biodiversity Conservation in Mountainous Karst Area of Southwestern China, Guizhou Normal University, Guiyang 550001, China
| | - Zhanhua Lu
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
| | - Lisheng Zhai
- School of Life Sciences, Guizhou Normal University, Guiyang 550001, China; (X.H.); (L.Z.); (N.L.)
- Key Laboratory of Plant Physiology and Development Regulation, Guizhou Normal University, Guiyang 550001, China
- Laboratory of State Forestry Administration on Biodiversity Conservation in Mountainous Karst Area of Southwestern China, Guizhou Normal University, Guiyang 550001, China
| | - Na Li
- School of Life Sciences, Guizhou Normal University, Guiyang 550001, China; (X.H.); (L.Z.); (N.L.)
- Key Laboratory of Plant Physiology and Development Regulation, Guizhou Normal University, Guiyang 550001, China
- Laboratory of State Forestry Administration on Biodiversity Conservation in Mountainous Karst Area of Southwestern China, Guizhou Normal University, Guiyang 550001, China
| | - Huiqing Yan
- School of Life Sciences, Guizhou Normal University, Guiyang 550001, China; (X.H.); (L.Z.); (N.L.)
| |
Collapse
|
5
|
Huang M, Chen J, Yang X, Zheng Y, Ma Y, Sun K, Han N, Bian H, Qiu T, Wang J. A unique mutation in PIN-FORMED1 and a genetic pathway for reduced sensitivity of Arabidopsis roots to N-1-naphthylphthalamic acid. PHYSIOLOGIA PLANTARUM 2023; 175:e14120. [PMID: 38148206 DOI: 10.1111/ppl.14120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 12/28/2023]
Abstract
The small chemical N-1-naphthylphthalamic acid (NPA) has long been used as a polar auxin transport inhibitor. Recent biochemical and structural investigations have revealed that this molecule competes with the auxin IAA (indole-3-acetic acid) inside the PIN-FORMED auxin efflux carriers. However, the existence of any mutations in PIN family proteins capable of uncoupling the docking of IAA from NPA remains unclear. We report that Arabidopsis thaliana seedlings overexpressing SMALL AUXIN UP RNA 41 were hypersensitive to NPA-induced root elongation inhibition. We mutagenized this line to improve the genetic screening efficiency for NPA hyposensitivity mutants. Using bulked segregation analysis and mapping-by-sequencing assessment of these mutants, we identified a core genetic pathway for NPA-induced root elongation inhibition, including genes required for auxin biosynthesis, transportation, and signaling. To evaluate specific changes of auxin signaling activity in mutant roots before and after NPA treatment, the DR5::GFP/DR5::YFP markers were introduced and observed. Most importantly, we discovered a unique mutation in the PIN1 protein, substituting a proline residue with leucine at position 584, leading to a loss of NPA sensitivity while keeping the auxin efflux capacity. Transforming the null mutant pin1-201 with the PIN1::PIN1P584L -GFP fusion construct rescued the PIN1 function and provided NPA hyposensitivity. The proline residue is predicted to be adjacent to a hinge in the middle region of the ninth transmembrane helix of PIN1 and is conserved from moss to higher plants. Our work may bring new insights into the engineering of NPA-resistant PINs for auxin biology studies.
Collapse
Affiliation(s)
- Minhua Huang
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jie Chen
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Xinxing Yang
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Yanyan Zheng
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Yuan Ma
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Kai Sun
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
| | - Ning Han
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Hongwu Bian
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Ting Qiu
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
| | - Junhui Wang
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| |
Collapse
|
6
|
Sun J, Zheng Y, Guo J, Zhang Y, Liu Y, Tao Y, Wang M, Liu T, Liu Y, Li X, Zhang X, Zhao L. GmGAMYB-BINDING PROTEIN 1 promotes small auxin-up RNA gene transcription to modulate soybean maturity and height. PLANT PHYSIOLOGY 2023; 193:775-791. [PMID: 37204820 DOI: 10.1093/plphys/kiad293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/13/2023] [Accepted: 04/26/2023] [Indexed: 05/20/2023]
Abstract
Flowering time, maturity, and plant height are crucial agronomic traits controlled by photoperiod that affect soybean (Glycine max [L.] Merr.) yield and regional adaptability. It is important to cultivate soybean cultivars of earlier maturity that adapt to high latitudes. GAMYB-binding protein 1 (GmGBP1), a member of the SNW/SKIP family of transcriptional coregulators in soybean, is induced by short days and interacts with transcription factor GAMYB (GmGAMYB) during photoperiod control of flowering time and maturity. In the present study, GmGBP1:GmGBP1 soybean showed the phenotypes of earlier maturity and higher plant height. Chromatin immunoprecipitation sequencing (ChIP-seq) assays of GmGBP1-binding sites and RNA sequencing (RNA-seq) of differentially expressed transcripts in GmGBP1:GmGBP1 further identified potential targets of GmGBP1, including small auxin-up RNA (GmSAUR). GmSAUR:GmSAUR soybean also showed earlier maturity and higher plant height. GmGBP1 interacted with GmGAMYB, bound to the promoter of GmSAUR and promoted the expression of FLOWER LOCUS T homologs 2a (GmFT2a) and FLOWERING LOCUS D LIKE 19 (GmFDL19). Flowering repressors such as GmFT4 were negatively regulated, resulting in earlier flowering and maturity. Furthermore, the interaction of GmGBP1 with GmGAMYB increased the gibberellin (GA) signal to promote height and hypocotyl elongation by activating GmSAUR and GmSAUR bound to the promoter of the GA-positive activating regulator gibberellic acid-stimulated Arabidopsis 32 (GmGASA32). These results suggested a photoperiod regulatory pathway in which the interaction of GmGBP1 with GmGAMYB directly activated GmSAUR to promote earlier maturity and plant height in soybean.
Collapse
Affiliation(s)
- Jingzhe Sun
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Yuhong Zheng
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Jinpeng Guo
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Yuntong Zhang
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Ying Liu
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Yahan Tao
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Mengyuan Wang
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Tianmeng Liu
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Yangyang Liu
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | - Xin Li
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| | | | - Lin Zhao
- Key Laboratory of Soybean Biology of Ministry of Education China, Northeast Agricultural University, Harbin 150030, China
| |
Collapse
|
7
|
Luan J, Xin M, Qin Z. Genome-Wide Identification and Functional Analysis of the Roles of SAUR Gene Family Members in the Promotion of Cucumber Root Expansion. Int J Mol Sci 2023; 24:ijms24065940. [PMID: 36983023 PMCID: PMC10053606 DOI: 10.3390/ijms24065940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Auxin serves as an essential regulator of the expression of many different genes in plants, thereby regulating growth and development. The specific functional roles of members of the SAUR (small auxin-up RNA) auxin early response gene family in the development of cucumber plants, however, remain to be fully clarified. Here, 62 SAUR family genes were identified, followed by their classification into 7 groups that included several functionally associated cis-regulatory elements. Phylogenetic tree and chromosomal location-based analyses revealed a high degree of homology between two cucumber gene clusters and other plants in the Cucurbitaceae family. These findings, together with the results of an RNA-seq analysis, revealed high levels of CsSAUR31 expression within the root and male flower tissues. Plants overexpressing CsSAUR31 exhibited longer roots and hypocotyls. Together, these results provide a basis for further efforts to explore the roles that SAUR genes play in cucumber plants, while also expanding the pool of available genetic resources to guide research focused on plant growth and development.
Collapse
Affiliation(s)
- Jie Luan
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture, College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Ming Xin
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture, College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Zhiwei Qin
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture, College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| |
Collapse
|
8
|
Ma X, Dai S, Qin N, Zhu C, Qin J, Li J. Genome-wide identification and expression analysis of the SAUR gene family in foxtail millet (Setaria italica L.). BMC PLANT BIOLOGY 2023; 23:31. [PMID: 36639742 PMCID: PMC9840322 DOI: 10.1186/s12870-023-04055-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Auxin performs important functions in plant growth and development processes, as well as abiotic stress. Small auxin-up RNA (SAUR) is the largest gene family of auxin-responsive factors. However, the knowledge of the SAUR gene family in foxtail millet is largely obscure. RESULTS In the current study, 72 SiSAUR genes were identified and renamed according to their chromosomal distribution in the foxtail millet genome. These SiSAUR genes were unevenly distributed on nine chromosomes and were classified into three groups through phylogenetic tree analysis. Most of the SiSAUR members from the same group showed similar gene structure and motif composition characteristics. Analysis of cis-acting elements showed that many hormone and stress response elements were identified in the promoter region of SiSAURs. Gene replication analysis revealed that many SiSAUR genes were derived from gene duplication events. We also found that the expression of 10 SiSAURs was induced by abiotic stress and exogenous hormones, which indicated that SiSAUR genes may participated in complex physiological processes. CONCLUSIONS Overall, these results will be valuable for further studies on the biological role of SAUR genes in foxtail development and response to stress conditions and may shed light on the improvement of the genetic breeding of foxtail millet.
Collapse
Affiliation(s)
- Xiaoqian Ma
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, Henan, People's Republic of China
| | - Shutao Dai
- Henan Academy of Agriculture Sciences, Cereal Crops Institute, Zhengzhou, 450002, Henan, People's Republic of China
| | - Na Qin
- Henan Academy of Agriculture Sciences, Cereal Crops Institute, Zhengzhou, 450002, Henan, People's Republic of China
| | - Cancan Zhu
- Henan Academy of Agriculture Sciences, Cereal Crops Institute, Zhengzhou, 450002, Henan, People's Republic of China
| | - Jiafan Qin
- Luoyang Academy of Agriculture and Forestry Sciences, Sweet Potato and Millet Institute, , Luoyang, 471023, Henan, People's Republic of China
| | - Junxia Li
- Henan Academy of Agriculture Sciences, Cereal Crops Institute, Zhengzhou, 450002, Henan, People's Republic of China.
| |
Collapse
|
9
|
Glutathione Plays a Positive Role in the Proliferation of Pinus koraiensis Embryogenic Cells. Int J Mol Sci 2022; 23:ijms232314679. [PMID: 36499020 PMCID: PMC9736457 DOI: 10.3390/ijms232314679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/15/2022] [Accepted: 11/21/2022] [Indexed: 11/26/2022] Open
Abstract
In the large-scale breeding of conifers, cultivating embryogenic cells with good proliferative capacity is crucial in the process of somatic embryogenesis. In the same cultural environment, the proliferative capacity of different cell lines is significantly different. To reveal the regulatory mechanism of proliferation in woody plant cell lines with different proliferative potential, we used Korean pine cell lines with high proliferative potential 001#-001 (Fast) and low proliferative potential 001#-010 (Slow) for analysis. A total of 17 glutathione-related differentially expressed genes was identified between F and S cell lines. A total of 893 metabolites was obtained from the two cell lines in the metabolomic studies. A total of nine metabolites related to glutathione was significantly upregulated in the F cell line compared with the S cell line. The combined analyses revealed that intracellular glutathione might be the key positive regulator mediating the difference in proliferative capacity between F and S cell lines. The qRT-PCR assay validated 11 differentially expressed genes related to glutathione metabolism. Exogenous glutathione and its synthase inhibitor L-buthionine-sulfoximine treatment assay demonstrated the positive role of glutathione in the proliferation of Korean pine embryogenic cells.
Collapse
|
10
|
Nuruzzaman M, Sato M, Okamoto S, Hoque M, Shea DJ, Fujimoto R, Shimizu M, Fukai E, Okazaki K. Comparative transcriptome analysis during tuberous stem formation in Kohlrabi (B. oleracea var. gongylodes) at early growth periods (seedling stages). PHYSIOLOGIA PLANTARUM 2022; 174:e13770. [PMID: 36018597 DOI: 10.1111/ppl.13770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Tuberous stem of kohlrabi is an important agronomic trait, however, the molecular basis of tuberization is poorly understood. To elucidate the tuberization mechanism, we conducted a comparative transcriptomic analysis between kohlrabi and broccoli at 10 and 20 days after germination (DAG) as tuberous stem initiated between these time points. A total of 5580 and 2866 differentially expressed transcripts (DETs) were identified between genotypes (kohlrabi vs. broccoli) and growth stages (10 DAG vs. 20 DAG), respectively, and most of the DETs were down-regulated in kohlrabi. Gene ontology (GO) and KEGG pathway enrichment analyses showed that the DETs between genotypes are involved in cell wall loosening and expansion, cell cycle and division, carbohydrate metabolism, hormone transport, hormone signal transduction and in several transcription factors. The DETs identified in those categories may directly/indirectly relate to the initiation and development of tuberous stem in kohlrabi. In addition, the expression pattern of the hormone synthesis related DETs coincided with the endogenous IAA, IAAsp, GA, ABA, and tZ profiles in kohlrabi and broccoli seedlings, that were revealed in our phytohormone analysis. This is the first report on comparative transcriptome analysis for tuberous stem formation in kohlrabi at early growth periods. The resulting data could provide significant insights into the molecular mechanism underlying tuberous stem development in kohlrabi as well as in other tuberous organ forming crops.
Collapse
Affiliation(s)
- Md Nuruzzaman
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
- Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Masato Sato
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Satoru Okamoto
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Mozammel Hoque
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
- Faculty of Agriculture, Sylhet Agricultural University (SAU), Sylhet, Bangladesh
| | - Daniel J Shea
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Ryo Fujimoto
- Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | | | - Eigo Fukai
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Keiichi Okazaki
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| |
Collapse
|
11
|
Lv W, He X, Guo H, Lan H, Jiao Y, Li L, Lian Y, Wang Z, Xin Z, Ren Y, Lin T. Genome-Wide Identification of TaSAUR Gene Family Members in Hexaploid Wheat and Functional Characterization of TaSAUR66-5B in Improving Nitrogen Use Efficiency. Int J Mol Sci 2022; 23:ijms23147574. [PMID: 35886923 PMCID: PMC9319360 DOI: 10.3390/ijms23147574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/16/2022] [Accepted: 06/24/2022] [Indexed: 11/16/2022] Open
Abstract
Excessive input of nitrogen fertilizer not only causes a great waste of resources but brings about a series of ecological and environmental problems. Although Small Auxin Up-regulated RNAs (SAURs) participate in diverse biological processes, the function of SAURs in the nitrogen starvation response has not been well-studied. Here, we identified 308 TaSAURs in wheat and divided them into 10 subfamilies. The promoter regions of most TaSAURs contain hormone responsive elements, and their expression levels change under the treatment of different hormones, such as IAA, MeJA, and ABA. Interestingly, overexpression of one of the TaSAUR family members, a nitrogen starvation responsive gene, TaSAUR66-5B, can promote the growth of Arabidopsis and wheat roots. In addition, overexpression of TaSAUR66-5B in Arabidopsis up-regulates the expression levels of auxin biosynthesis related genes, suggesting that overexpression TaSAUR66-5B may promote root growth by increasing the biosynthesis of auxin. Furthermore, overexpression of TaSAUR66-5B in wheat can increase the biomass and grain yields of transgenic plants, as well as the nitrogen concentration and accumulation of both shoots and grains, especially under low nitrogen conditions. This study provides important genomic information of the TaSAUR gene family and lays a foundation for elucidating the functions of TaSAURs in improving nitrogen utilization efficiency in wheat.
Collapse
Affiliation(s)
- Weizeng Lv
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
| | - Xue He
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing 100101, China;
| | - Haojuan Guo
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
| | - Haibin Lan
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
| | - Yanqing Jiao
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
| | - Le Li
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
| | - Yanhao Lian
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
| | - Zhiqiang Wang
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
| | - Zeyu Xin
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
| | - Yongzhe Ren
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
- Correspondence: (Y.R.); (T.L.)
| | - Tongbao Lin
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; (W.L.); (H.G.); (H.L.); (Y.J.); (L.L.); (Y.L.); (Z.W.); (Z.X.)
- Correspondence: (Y.R.); (T.L.)
| |
Collapse
|
12
|
Lee S, Wang W, Huq E. Spatial regulation of thermomorphogenesis by HY5 and PIF4 in Arabidopsis. Nat Commun 2021; 12:3656. [PMID: 34135347 PMCID: PMC8209091 DOI: 10.1038/s41467-021-24018-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 05/29/2021] [Indexed: 12/13/2022] Open
Abstract
Plants respond to high ambient temperature by implementing a suite of morphological changes collectively termed thermomorphogenesis. Here we show that the above and below ground tissue-response to high ambient temperature are mediated by distinct transcription factors. While the central hub transcription factor, PHYTOCHROME INTERCTING FACTOR 4 (PIF4) regulates the above ground tissue response, the below ground root elongation is primarily regulated by ELONGATED HYPOCOTYL 5 (HY5). Plants respond to high temperature by largely expressing distinct sets of genes in a tissue-specific manner. HY5 promotes root thermomorphogenesis via directly controlling the expression of many genes including the auxin and BR pathway genes. Strikingly, the above and below ground thermomorphogenesis is impaired in spaQ. Because SPA1 directly phosphorylates PIF4 and HY5, SPAs might control the stability of PIF4 and HY5 to regulate thermomorphogenesis in both tissues. These data collectively suggest that plants employ distinct combination of SPA-PIF4-HY5 module to regulate tissue-specific thermomorphogenesis. Plants undergo morphological changes collectively termed thermomorphogenesis when exposed to elevated temperature. Here the authors show that the SPA1 kinase regulates distinct thermomorphogenic responses according to tissue type by interactions with PIF4 and HY5 in shoots and roots, respectively.
Collapse
Affiliation(s)
- Sanghwa Lee
- Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
| | - Wenli Wang
- Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
| | - Enamul Huq
- Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA.
| |
Collapse
|
13
|
Hou L, Chen W, Zhang Z, Pang X, Li Y. Genome-wide association studies of fruit quality traits in jujube germplasm collections using genotyping-by-sequencing. THE PLANT GENOME 2020; 13:e20036. [PMID: 33217218 DOI: 10.1002/tpg2.20036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 05/06/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
Chinese jujube (Ziziphus jujuba Mill.) is an important fruit crop and harbors many highly diverse traits of potential economic importance. Fruit size, stone size, and fruit cracking have an important influence on the commercial value of jujube. This study is the first to conduct a genome-wide association study (GWAS) on 180 accessions of jujube and focuses on locating single-nucleotide polymorphisms (SNPs) associated with nine important fruit quality traits. Genotyping was performed using genotyping-by-sequencing and 4651 high-quality SNPs were identified. A genetic diversity analysis revealed the presence of three distinct groups, and rapid linkage disequilibrium decay was observed in this jujube population. Using a mixed linear model, a total of 45 significant SNP-trait associations were detected, among which 33 SNPs had associations with fruit size-related traits, nine were associated with stone size-related traits, and three with fruit cracking-related traits. In total, 21 candidate genes involved in cell expansion, abiotic stress responses, hormone signaling, and growth development were identified from the genome sequences of jujube. These results are useful as basic data for GWAS of other jujube traits, and these significant SNP loci and candidate genes should aid marker-assisted breeding and genomic selection of improved jujube cultivars.
Collapse
Affiliation(s)
- Lu Hou
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Wu Chen
- The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Zhiyong Zhang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China
| | - Xiaoming Pang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Yingyue Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| |
Collapse
|
14
|
Qiu T, Qi M, Ding X, Zheng Y, Zhou T, Chen Y, Han N, Zhu M, Bian H, Wang J. The SAUR41 subfamily of SMALL AUXIN UP RNA genes is abscisic acid inducible to modulate cell expansion and salt tolerance in Arabidopsis thaliana seedlings. ANNALS OF BOTANY 2020; 125:805-819. [PMID: 31585004 PMCID: PMC7182593 DOI: 10.1093/aob/mcz160] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 10/02/2019] [Indexed: 05/22/2023]
Abstract
BACKGROUND AND AIMS Most primary auxin response genes are classified into three families: AUX/IAA, GH3 and SAUR genes. Few studies have been conducted on Arabidopsis thaliana SAUR genes, possibly due to genetic redundancy among different subfamily members. Data mining on arabidopsis transcriptional profiles indicates that the SAUR41 subfamily members of SMALL AUXIN UP RNA genes are, strikingly, induced by an inhibitory phytohormone, abscisic acid (ABA). We aimed to reveal the physiological roles of arabidopsis SAUR41 subfamily genes containing SAUR40, SAUR41, SAUR71 and SAUR72. METHODS Transcriptional responses of arabidopsis SAUR41 genes to phytohormones were determined by quantitative real-time PCR. Knock out of SAUR41 genes was carried out with the CRISPR/Cas9 (clustered regulatory interspaced short palindromic repeats/CRISPR-associated protein 9) genome editing technique. The saur41/40/71/72 quadruple mutants, SAUR41 overexpression lines and the wild type were subjected to ultrastructural observation, transcriptome analysis and physiological characterization. KEY RESULTS Transcription of arabidopsis SAUR41 subfamily genes is activated by ABA but not by gibberellic acids and brassinosteroids. Quadruple mutations in saur41/40/71/72 led to reduced cell expansion/elongation in cotyledons and hypocotyls, opposite to the overexpression of SAUR41; however, an irregular arrangement of cell size and shape was observed in both cases. The quadruple mutants had increased transcription of calcium homeostasis/signalling genes in seedling shoots, and the SAUR41 overexpression lines had decreased transcription of iron homeostasis genes in roots and increased ABA biosynthesis in shoots. Notably, both the quadruple mutants and the SAUR41 overexpression lines were hypersensitive to salt stress during seedling establishment, whereas specific expression of SAUR41 under the ABA-responsive RD29A (Responsive to Desiccation 29A) promoter in the quadruple mutants rescued the inhibitory effect of salt stress. CONCLUSIONS The SAUR41 subfamily genes of arabidopsis are ABA inducible to modulate cell expansion, ion homeostasis and salt tolerance. Our work may provide new candidate genes for improvement of plant abiotic stress tolerance.
Collapse
Affiliation(s)
- Ting Qiu
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Mengyuan Qi
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Xiaohui Ding
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Yanyan Zheng
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Tianjiao Zhou
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Yong Chen
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Ning Han
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Muyuan Zhu
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Hongwu Bian
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Junhui Wang
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
- For correspondence. E-mail
| |
Collapse
|
15
|
Wen Z, Mei Y, Zhou J, Cui Y, Wang D, Wang NN. SAUR49 Can Positively Regulate Leaf Senescence by Suppressing SSPP in Arabidopsis. PLANT & CELL PHYSIOLOGY 2020; 61:644-658. [PMID: 31851355 DOI: 10.1093/pcp/pcz231] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 12/12/2019] [Indexed: 05/22/2023]
Abstract
The involvement of SMALL AUXIN-UP RNA (SAUR) proteins in leaf senescence has been more and more acknowledged, but the detailed mechanisms remain unclear. In the present study, we performed yeast two-hybrid assays and identified SAUR49 as an interactor of SENESCENCE SUPPRESSED PROTEIN PHOSPHATASE (SSPP), which is a PP2C protein phosphatase that negatively regulates Arabidopsis leaf senescence by suppressing the leucine-rich repeat receptor-like protein kinase SENESCENCE-ASSOCIATED RECEPTOR-LIKE KINASE (SARK), as reported previously by our group. The interaction between SAUR49 and SSPP was further confirmed in planta. Functional characterization revealed that SAUR49 is a positive regulator of leaf senescence. The accumulation level of SAUR49 protein increased during natural leaf senescence in Arabidopsis. The transcript level of SAUR49 was upregulated during SARK-induced premature leaf senescence but downregulated during SSPP-mediated delayed leaf senescence. Overexpression of SAUR49 significantly accelerated both natural and dark-induced leaf senescence in Arabidopsis. More importantly, SAUR49 overexpression completely reversed SSPP-induced delayed leaf senescence. In addition, overexpression of SAUR49 reversed the decreased plasma membrane H+-ATPase activity mediated by SSPP. Taken together, the results showed that SAUR49 functions in accelerating the leaf senescence process via the activation of SARK-mediated leaf senescence signaling by suppressing SSPP. We further identified four other SSPP-interacting SAURs, SAUR30, SAUR39, SAUR41 and SAUR72, that may act redundantly with SAUR49 in regulating leaf senescence. All these observations indicated that certain members of the SAUR family may serve as an important hub that integrates various hormonal and environmental signals with senescence signals in Arabidopsis.
Collapse
Affiliation(s)
- Zewen Wen
- Tianjin Key Laboratory of Protein Sciences, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yuanyuan Mei
- Tianjin Key Laboratory of Protein Sciences, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jie Zhou
- Tianjin Key Laboratory of Protein Sciences, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yanjiao Cui
- Tianjin Key Laboratory of Protein Sciences, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Dan Wang
- Tianjin Key Laboratory of Protein Sciences, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Ning Ning Wang
- Tianjin Key Laboratory of Protein Sciences, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin 300071, China
| |
Collapse
|
16
|
Ding X, Zheng Y, Qiu T, Wang J. The SAUR41 subfamily of cell expansion-promoting genes modulates abscisic acid sensitivity and root touch response: a possible connection to ion homeostasis regulation. PLANT SIGNALING & BEHAVIOR 2019; 15:1702239. [PMID: 31822155 PMCID: PMC7012171 DOI: 10.1080/15592324.2019.1702239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/01/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Most primary auxin response genes are classified into three families, namely AUX/IAAs, GH3s, and SAURs. As a rapidly developing field of plant biology, recent studies have begun to address the function and mechanism of plant SAURs. We found that, in Arabidopsis, the SAUR41 subfamily genes were ABA-inducible, and overexpression of SAUR41 induced the biosynthesis of ABA. The saur41/40/71/72 quadruple mutants and the SAUR41 overexpression lines had an altered expression of ABA and calcium homeostasis/signaling genes, but not the AUX/IAAs and GH3s. Here, we reported that the quadruple mutants showed an increased sensitivity to ABA treatment, in terms of cotyledon greening/expansion rate, while for the overexpression lines, this was decreased. With respect to the root touch response, the overexpression of SAUR41 led to an extensive root looping phenotype, while the quadruple mutations of saur41s led to a relaxed root looping. As reported, the ion content (Na+, K+ and Fe2+), apoplast acidification ability, and salt tolerance were also abnormal in the quadruple mutants and/or the SAUR41 overexpression lines. Our work supports an emerging concept that ABA and calcium are integrated together to modulate ion homeostasis. In addition, our work demonstrates that SAUR41s might be new components for the regulation of ion homeostasis by ABA and calcium.
Collapse
Affiliation(s)
- Xiaohui Ding
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Yanyan Zheng
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Ting Qiu
- Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Junhui Wang
- Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou, China
| |
Collapse
|
17
|
Stortenbeker N, Bemer M. The SAUR gene family: the plant's toolbox for adaptation of growth and development. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:17-27. [PMID: 30239806 DOI: 10.1093/jxb/ery332] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 09/14/2018] [Indexed: 05/20/2023]
Abstract
The family of small auxin up-regulated RNA (SAUR) genes is a family of auxin-responsive genes with ~60-140 members in most higher plant species. Despite the early discovery of their auxin responsiveness, their function and mode of action remained unknown for a long time. In recent years, the importance of SAUR genes in the regulation of dynamic and adaptive growth, and the molecular mechanisms by which SAUR proteins act are increasingly well understood. SAURs play a central role in auxin-induced acid growth, but can also act independently of auxin, tissue specifically regulated by various other hormone pathways and transcription factors. In this review, we summarize recent advances in the characterization of the SAUR genes in Arabidopsis and other plant species. We particularly elaborate on their capacity to fine-tune growth in response to internal and external signals, and discuss the breakthroughs in understanding the mode of action of SAURs in relation to their complex regulation.
Collapse
Affiliation(s)
- Niek Stortenbeker
- Department of Molecular Plant Physiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Marian Bemer
- Laboratory of Molecular Biology and Business Unit Bioscience, Wageningen University & Research, Wageningen, The Netherlands
| |
Collapse
|
18
|
Hu W, Yan H, Luo S, Pan F, Wang Y, Xiang Y. Genome-wide analysis of poplar SAUR gene family and expression profiles under cold, polyethylene glycol and indole-3-acetic acid treatments. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 128:50-65. [PMID: 29758473 DOI: 10.1016/j.plaphy.2018.04.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 06/08/2023]
Abstract
Small auxin-up RNA (SAUR) proteins play an important role in the regulation of plant growth and development. Here, we identified 105 SAUR genes and comprehensively analyzed them in Populus trichocarpa. Based on the phylogenetic relationships, the PtSAURs were classified into ten subfamilies. Of the 105 PtSAURs, 100 were randomly distributed along the nineteen chromosomes, while the remaining genes were located along unassigned scafoolds. These genes mainly evolved through segmental duplications. In total, 94 PtSAURs contained no introns, and each group had a similar conserved motif structure. A promoter analysis revealed various cis-elements related to growth, development and stress responses, and a synteny analysis established orthologous relationships among SAURs in Arabidopsis, rice, grape and poplar. The qRT-PCR and tissue expression analyses indicated that PtSAURs show different expression levels in various tissues in response to different treatments. PtSAUR53 was located on the nuclear and plasma membrane by conducting subcellular localization analysis. This study provides a comprehensive overview of poplar SAUR proteins and a foundation for further investigations for functional analysis of SAURs in poplar growth and development. At the same time, it will be valuable to further study the poplar SAUR genes to reveal their biological effects.
Collapse
Affiliation(s)
- Wenfang Hu
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, China.
| | - Hanwei Yan
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Biomass Improvement and Conversion, Anhui Agriculture University, Hefei, 230036, China.
| | - Shuangshuang Luo
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, China.
| | - Feng Pan
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, China.
| | - Yue Wang
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, China.
| | - Yan Xiang
- Laboratory of Modern Biotechnology, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Biomass Improvement and Conversion, Anhui Agriculture University, Hefei, 230036, China.
| |
Collapse
|
19
|
A subset of plasma membrane-localized PP2C.D phosphatases negatively regulate SAUR-mediated cell expansion in Arabidopsis. PLoS Genet 2018; 14:e1007455. [PMID: 29897949 PMCID: PMC6016943 DOI: 10.1371/journal.pgen.1007455] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 06/25/2018] [Accepted: 05/30/2018] [Indexed: 02/06/2023] Open
Abstract
The plant hormone auxin regulates numerous growth and developmental processes throughout the plant life cycle. One major function of auxin in plant growth and development is the regulation of cell expansion. Our previous studies have shown that SMALL AUXIN UP RNA (SAUR) proteins promote auxin-induced cell expansion via an acid growth mechanism. These proteins inhibit the PP2C.D family phosphatases to activate plasma membrane (PM) H+-ATPases and thereby promote cell expansion. However, the functions of individual PP2C.D phosphatases are poorly understood. Here, we investigated PP2C.D-mediated control of cell expansion and other aspects of plant growth and development. The nine PP2C.D family members exhibit distinct subcellular localization patterns. Our genetic findings demonstrate that the three plasma membrane-localized members, PP2C.D2, PP2C.D5, and PP2C.D6, are the major regulators of cell expansion. These phosphatases physically interact with SAUR19 and PM H+-ATPases, and inhibit cell expansion by dephosphorylating the penultimate threonine of PM H+-ATPases. PP2C.D genes are broadly expressed and are crucial for diverse plant growth and developmental processes, including apical hook development, phototropism, and organ growth. GFP-SAUR19 overexpression suppresses the growth defects conferred by PP2C.D5 overexpression, indicating that SAUR proteins antagonize the growth inhibition conferred by the plasma membrane-localized PP2C.D phosphatases. Auxin and high temperature upregulate the expression of some PP2C.D family members, which may provide an additional layer of regulation to prevent plant overgrowth. Our findings provide novel insights into auxin-induced cell expansion, and provide crucial loss-of-function genetic support for SAUR-PP2C.D regulatory modules controlling key aspects of plant growth. The plant hormone auxin is a major regulator of cell expansion, which is a fundamental cellular process essential for plant growth and development. The acid growth theory was proposed in the 1970s to explain auxin-induced cell expansion. However, the mechanistic basis of auxin-induced cell expansion via acid growth is poorly understood. Here, we investigated the functions of the D-clade PP2C (PP2C.D) family phosphatases in auxin-induced cell expansion as well as plant growth and development. The PP2C.D protein family is composed of nine members. Our findings demonstrate that the plasma membrane-localized PP2C.D2, PP2C.D5, and PP2C.D6 family members are the major regulators in auxin-induced cell expansion. These proteins physically associate with SAUR proteins and plasma membrane H+-ATPases to negatively regulate cell expansion. PP2C.D genes are broadly expressed and are crucial for a variety of plant growth and developmental processes, particularly elongation growth, such as hypocotyl and stamen filament growth. The results of our studies provide novel insights into auxin-induced cell expansion via an acid growth mechanism.
Collapse
|
20
|
Li X, Liu G, Geng Y, Wu M, Pei W, Zhai H, Zang X, Li X, Zhang J, Yu S, Yu J. A genome-wide analysis of the small auxin-up RNA (SAUR) gene family in cotton. BMC Genomics 2017; 18:815. [PMID: 29061116 PMCID: PMC5654091 DOI: 10.1186/s12864-017-4224-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 10/17/2017] [Indexed: 11/10/2022] Open
Abstract
Background Small auxin-up RNA (SAUR) gene family is the largest family of early auxin response genes in higher plants, which have been implicated in the regulation of multiple biological processes. However, no comprehensive analysis of SAUR genes has been reported in cotton (Gossypium spp.). Results In the study, we identified 145, 97, 214, and 176 SAUR homologous genes in the sequenced genomes of G. raimondii, G. arboreum, G. hirsutum, and G. barbadense, respectively. A phylogenetic analysis revealed that the SAUR genes can be classified into 10 groups. A further analysis of chromosomal locations and gene duplications showed that tandem duplication and segmental duplication events contributed to the expansion of the SAUR gene family in cotton. An exon-intron organization and motif analysis revealed the conservation of SAUR-specific domains, and the auxin responsive elements existed in most of the upstream sequences. The expression levels of 16 GhSAUR genes in response to an exogenous application of IAA were determined by a quantitative RT-PCR analysis. The genome-wide RNA-seq data and qRT-PCR analysis of selected SAUR genes in developing fibers revealed their differential expressions. The physical mapping showed that 20 SAUR genes were co-localized with fiber length quantitative trait locus (QTL) hotspots. Single nucleotide polymorphisms (SNPs) were detected for 12 of these 20 genes between G. hirsutum and G. barbadense, but no SNPs were identified between two backcross inbred lines with differing fiber lengths derived from a cross between the two cultivated tetraploids. Conclusions This study provides an important piece of genomic information for the SAUR genes in cotton and lays a solid foundation for elucidating the functions of SAUR genes in auxin signaling pathways to regulate cotton growth. Electronic supplementary material The online version of this article (10.1186/s12864-017-4224-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Xihua Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China.,College of Agronomy, Northwest A&F University, Yangling, 712100, China
| | - Guoyuan Liu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China
| | - Yanhui Geng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China
| | - Man Wu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China
| | - Wenfeng Pei
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China
| | - Honghong Zhai
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China
| | - Xinshan Zang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China
| | - Xingli Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China
| | - Jinfa Zhang
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, 88003, USA.
| | - Shuxun Yu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China. .,College of Agronomy, Northwest A&F University, Yangling, 712100, China.
| | - Jiwen Yu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000, China.
| |
Collapse
|
21
|
Xu YX, Xiao MZ, Liu Y, Fu JL, He Y, Jiang DA. The small auxin-up RNA OsSAUR45 affects auxin synthesis and transport in rice. PLANT MOLECULAR BIOLOGY 2017; 94:97-107. [PMID: 28321650 DOI: 10.1007/s11103-017-0595-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 02/16/2017] [Indexed: 05/25/2023]
Abstract
This research is the first to demonstrate that OsSAUR45 is involved in plant growth though affecting auxin synthesis and transport by repressing OsYUCCA and OsPIN gene expression in rice. Small auxin-up RNAs (SAURs) comprise a large multigene family and are rapidly activated as part of the primary auxin response in plants. However, little is known about the role of SAURs in plant growth and development, especially in monocots. Here, we report the biological function of OsSAUR45 in the model plant rice (Oryza sativa). OsSAUR45 is expressed in a tissue-specific pattern and is localized to the cytoplasm. Rice lines overexpressing OsSAUR45 displayed pleiotropic developmental defects including reduced plant height and primary root length, fewer adventitious roots, narrower leaves, and reduced seed setting. Auxin levels and transport were reduced in the OsSAUR45 overexpression lines, potentially because of decreased expression of Flavin-binding monooxygenase family proteins (OsYUCCAs) and PIN-FORMED family proteins (OsPINs). Exogenous auxin application rapidly induced OsSAUR45 expression and partially restored the phenotype of rice lines overexpressing OsSAUR45. These results demonstrate that OsSAUR45 is involved in plant growth by affecting auxin synthesis and transport through the repression of OsYUCCA and OsPIN gene expression in rice.
Collapse
Affiliation(s)
- Yan-Xia Xu
- National Center for Tea Improvement, Tea Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, 9 South Meiling Road, Hangzhou, 310008, China.
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
| | - Meng-Zhu Xiao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yan Liu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jun-Liang Fu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yi He
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - De-An Jiang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
| |
Collapse
|
22
|
Tu D, Luo Z, Wu B, Ma X, Shi H, Mo C, Huang J, Xie W. Developmental, chemical and transcriptional characteristics of artificially pollinated and hormone-induced parthenocarpic fruits of Siraitia grosvenorii. RSC Adv 2017. [DOI: 10.1039/c6ra28341a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Unpollinated ovaries of Siraitia grosvenorii grew parthenocarpically in response to the application of GA3 and CPPU.
Collapse
Affiliation(s)
- Dongping Tu
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
- Guangxi University of Chinese Medicine
| | - Zuliang Luo
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
| | - Bin Wu
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
| | - Xiaojun Ma
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
| | - Hongwu Shi
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
| | - Changming Mo
- Guangxi Botanical Garden of Medicinal Plants
- Nanning 530023
- China
| | - Jie Huang
- Guangxi Botanical Garden of Medicinal Plants
- Nanning 530023
- China
| | | |
Collapse
|
23
|
Yu R, Wang J, Xu L, Wang Y, Wang R, Zhu X, Sun X, Luo X, Xie Y, Everlyne M, Liu L. Transcriptome Profiling of Taproot Reveals Complex Regulatory Networks during Taproot Thickening in Radish (Raphanus sativus L.). FRONTIERS IN PLANT SCIENCE 2016; 7:1210. [PMID: 27597853 PMCID: PMC4992731 DOI: 10.3389/fpls.2016.01210] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 07/29/2016] [Indexed: 05/19/2023]
Abstract
Radish (Raphanus sativus L.) is one of the most important vegetable crops worldwide. Taproot thickening represents a critical developmental period that determines yield and quality in radish life cycle. To isolate differentially expressed genes (DGEs) involved in radish taproot thickening process and explore the molecular mechanism underlying taproot development, three cDNA libraries from radish taproot collected at pre-cortex splitting stage (L1), cortex splitting stage (L2), and expanding stage (L3) were constructed and sequenced by RNA-Seq technology. More than seven million clean reads were obtained from the three libraries, from which 4,717,617 (L1, 65.35%), 4,809,588 (L2, 68.24%) and 4,973,745 (L3, 69.45%) reads were matched to the radish reference genes, respectively. A total of 85,939 transcripts were generated from three libraries, from which 10,450, 12,325, and 7392 differentially expressed transcripts (DETs) were detected in L1 vs. L2, L1 vs. L3, and L2 vs. L3 comparisons, respectively. Gene Ontology and pathway analysis showed that many DEGs, including EXPA9, Cyclin, CaM, Syntaxin, MADS-box, SAUR, and CalS were involved in cell events, cell wall modification, regulation of plant hormone levels, signal transduction and metabolisms, which may relate to taproot thickening. Furthermore, the integrated analysis of mRNA-miRNA revealed that 43 miRNAs and 92 genes formed 114 miRNA-target mRNA pairs were co-expressed, and three miRNA-target regulatory networks of taproot were constructed from different libraries. Finally, the expression patterns of 16 selected genes were confirmed using RT-qPCR analysis. A hypothetical model of genetic regulatory network associated with taproot thickening in radish was put forward. The taproot formation of radish is mainly attributed to cell differentiation, division and expansion, which are regulated and promoted by certain specific signal transduction pathways and metabolism processes. These results could provide new insights into the complex molecular mechanism underlying taproot thickening and facilitate genetic improvement of taproot in radish.
Collapse
Affiliation(s)
- Rugang Yu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
- School of Life Science, Huaibei Normal UniversityHuaibei, China
| | - Jing Wang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Liang Xu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Yan Wang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Ronghua Wang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Xianwen Zhu
- Department of Plant Sciences, North Dakota State UniversityFargo, ND, USA
| | - Xiaochuan Sun
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Xiaobo Luo
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Yang Xie
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Muleke Everlyne
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Liwang Liu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| |
Collapse
|
24
|
Nguyen HTH, Umemura K, Kawano T. Indole-3-acetic acid-induced oxidative burst and an increase in cytosolic calcium ion concentration in rice suspension culture. Biosci Biotechnol Biochem 2016; 80:1546-54. [DOI: 10.1080/09168451.2016.1179094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Abstract
Indole-3-acetic acid (IAA) is the major natural auxin involved in the regulation of a variety of growth and developmental processes such as division, elongation, and polarity determination in growing plant cells. It has been shown that dividing and/or elongating plant cells accompanies the generation of reactive oxygen species (ROS) and a number of reports have suggested that hormonal actions can be mediated by ROS through ROS-mediated opening of ion channels. Here, we surveyed the link between the action of IAA, oxidative burst, and calcium channel activation in a transgenic cells of rice expressing aequorin in the cytosol. Application of IAA to the cells induced a rapid and transient generation of superoxide which was followed by a transient increase in cytosolic Ca2+ concentration ([Ca2+]c). The IAA-induced [Ca2+]c elevation was inhibited by Ca2+ channel blockers and a Ca2+ chelator. Furthermore, ROS scavengers effectively blocked the action of IAA on [Ca2+]c elevation.
Collapse
Affiliation(s)
- Hieu T H Nguyen
- Laboratory of Chemical Biology and Bioengineering, Graduate School and Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu, Japan
| | - Kenji Umemura
- Agricultural & Veterinary Research Laboratories, Meiji Seika Pharma Co., Ltd., Yokohama, Japan
| | - Tomonori Kawano
- Laboratory of Chemical Biology and Bioengineering, Graduate School and Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu, Japan
- University of Florence LINV Kitakyushu Research Center (LINV@Kitakyushu), Kitakyushu, Japan
- Univ. Paris-Diderot, Sorbonne Paris Cité, Paris 7 Interdisciplinary Energy Research Institute (PIERI), Paris, France
| |
Collapse
|
25
|
HUANG XING, BAO YANING, WANG BO, LIU LIJUN, CHEN JIE, DAI LUNJIN, BALOCH SANAULLAH, PENG DINGXIANG. Identification of small auxin-up RNA (SAUR) genes in Urticales plants: mulberry (Morus notabilis), hemp (Cannabis sativa) and ramie (Boehmeria nivea). J Genet 2016; 95:119-29. [DOI: 10.1007/s12041-016-0622-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
26
|
Ren H, Gray WM. SAUR Proteins as Effectors of Hormonal and Environmental Signals in Plant Growth. MOLECULAR PLANT 2015; 8:1153-64. [PMID: 25983207 PMCID: PMC5124491 DOI: 10.1016/j.molp.2015.05.003] [Citation(s) in RCA: 279] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 05/05/2015] [Accepted: 05/05/2015] [Indexed: 05/18/2023]
Abstract
The plant hormone auxin regulates numerous aspects of plant growth and development. Early auxin response genes mediate its genomic effects on plant growth and development. Discovered in 1987, small auxin up RNAs (SAURs) are the largest family of early auxin response genes. SAUR functions have remained elusive, however, presumably due to extensive genetic redundancy. However, recent molecular, genetic, biochemical, and genomic studies have implicated SAURs in the regulation of a wide range of cellular, physiological, and developmental processes. Recently, crucial mechanistic insight into SAUR function was provided by the demonstration that SAURs inhibit PP2C.D phosphatases to activate plasma membrane (PM) H(+)-ATPases and promote cell expansion. In addition to auxin, several other hormones and environmental factors also regulate SAUR gene expression. We propose that SAURs are key effector outputs of hormonal and environmental signals that regulate plant growth and development.
Collapse
Affiliation(s)
- Hong Ren
- Department of Plant Biology, University of Minnesota, 250 Biological Sciences Center, 1445 Gortner Avenue, St. Paul, MN 55108, USA
| | - William M Gray
- Department of Plant Biology, University of Minnesota, 250 Biological Sciences Center, 1445 Gortner Avenue, St. Paul, MN 55108, USA.
| |
Collapse
|