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Li X, Chen X, Fang J, Feng X, Zhang X, Lin H, Chen W, Zhang N, He H, Huang Z, Xue X, Li Y, Fan L, Lai R, Huo Z, Cui M, Deng G, Zaid C, Su Y, Zhang J, Cai W, Qi Y. Whole-genome sequencing of a worldwide collection of sugarcane cultivars (Saccharum spp.) reveals the genetic basis of cultivar improvement. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 38852163 DOI: 10.1111/tpj.16861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 05/12/2024] [Accepted: 05/20/2024] [Indexed: 06/11/2024]
Abstract
Sugarcane is the main source of sugar worldwide, and 80% of the sucrose production comes from sugarcane. However, the genetic differentiation and basis of agronomic traits remain obscure. Here, we sequenced the whole-genome of 219 elite worldwide sugarcane cultivar accessions. A total of approximately 6 million high-quality genome-wide single nucleotide polymorphisms (SNPs) were detected. A genome-wide association study identified a total of 2198 SNPs that were significantly associated with sucrose content, stalk number, plant height, stalk diameter, cane yield, and sugar yield. We observed homozygous tendency of favor alleles of these loci, and over 80% of cultivar accessions carried the favor alleles of the SNPs or haplotypes associated with sucrose content. Gene introgression analysis showed that the number of chromosome segments from Saccharum spontaneum decreased with the breeding time of cultivars, while those from S. officinarum increased in recent cultivars. A series of selection signatures were identified in sugarcane improvement procession, of which 104 were simultaneously associated with agronomic traits and 45 of them were mainly associated with sucrose content. We further proposed that as per sugarcane transgenic experiments, ShN/AINV3.1 plays a positive role in increasing stalk number, plant height, and stalk diameter. These findings provide comprehensive resources for understanding the genetic basis of agronomic traits and will be beneficial to germplasm innovation, screening molecular markers, and future sugarcane cultivar improvement.
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Affiliation(s)
- Xuhui Li
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
| | - Xinglong Chen
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
| | - Junteng Fang
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Xiaomin Feng
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
| | - Xiangbo Zhang
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
| | - Huanzhang Lin
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Weiwei Chen
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
| | - Nannan Zhang
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
| | - Huiyi He
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
| | - Zhenghui Huang
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Xiaoming Xue
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Yucong Li
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Lina Fan
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Ruiqiang Lai
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Zhenye Huo
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Mingyang Cui
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Guangyan Deng
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Chachar Zaid
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
| | - Yueping Su
- Zhanjiang Academy of Agricultural Sciences, Zhanjiang, Guangdong, 524094, China
| | - Jisen Zhang
- State Key Laboratory for Conservation and Utilization of Agro-Bioresources, Guangxi University, Nanning, Guangxi, 530005, China
| | - Weijun Cai
- Zhanjiang Academy of Agricultural Sciences, Zhanjiang, Guangdong, 524094, China
| | - Yongwen Qi
- Institute of Nanfan and Seed Industry, Guangdong Academy of Science, Guangzhou, Guangdong, 510316, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510325, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, Guangdong, 510642, China
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Qiao K, Zeng Q, Lv J, Chen L, Hao J, Wang D, Ma Q, Fan S. Exploring the role of GhN/AINV23: implications for plant growth, development, and drought tolerance. Biol Direct 2024; 19:22. [PMID: 38486336 PMCID: PMC10938729 DOI: 10.1186/s13062-024-00465-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 03/06/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Neutral/alkaline invertases (N/AINVs) play a crucial role in plant growth, development, and stress response, by irreversibly hydrolyzing sucrose into glucose and fructose. However, research on cotton in this area is limited. This study aims to investigate GhN/AINV23, a neutral/alkaline invertase in cotton, including its characteristics and biological functions. RESULTS In our study, we analyzed the sequence information, three-dimensional (3D) model, phylogenetic tree, and cis-elements of GhN/AINV23. The localization of GhN/AINV23 was determined to be in the cytoplasm and cell membrane. Quantitative real-time polymerase chain reaction (qRT-PCR) results showed that GhN/AINV23 expression was induced by abscisic acid (ABA), exogenous sucrose and low exogenous glucose, and inhibited by high exogenous glucose. In Arabidopsis, overexpression of GhN/AINV23 promoted vegetative phase change, root development, and drought tolerance. Additionally, the virus-induced gene silencing (VIGS) assay indicated that the inhibition of GhN/AINV23 expression made cotton more susceptible to drought stress, suggesting that GhN/AINV23 positively regulates plant drought tolerance. CONCLUSION Our research indicates that GhN/AINV23 plays a significant role in plant vegetative phase change, root development, and drought response. These findings provide a valuable foundation for utilizing GhN/AINV23 to improve cotton yield.
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Affiliation(s)
- Kaikai Qiao
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, 572024, Sanya, Hainan, China.
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research of Chinese Academy of Agricultural Sciences (CAAS), 455000, Anyang, Henan, China.
| | - Qingtao Zeng
- The 7th Division of Agricultural Sciences Institute, Xinjiang Production and Construction Corps, 833200, Kuitun, Xinjiang, China
| | - Jiaoyan Lv
- Anyang Academy of Agricultural Sciences, 455000, Anyang, Henan, China
| | - Lingling Chen
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research of Chinese Academy of Agricultural Sciences (CAAS), 455000, Anyang, Henan, China
| | - Juxin Hao
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research of Chinese Academy of Agricultural Sciences (CAAS), 455000, Anyang, Henan, China
| | - Ding Wang
- Anyang Meteorological Service, 455000, Anyang, Henan, China
| | - Qifeng Ma
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, 572024, Sanya, Hainan, China.
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research of Chinese Academy of Agricultural Sciences (CAAS), 455000, Anyang, Henan, China.
| | - Shuli Fan
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, 572024, Sanya, Hainan, China.
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research of Chinese Academy of Agricultural Sciences (CAAS), 455000, Anyang, Henan, China.
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Zhang S, Wang W, Chang R, Yu J, Yan J, Yu W, Li C, Xu Z. Structure and Expression Analysis of PtrSUS, PtrINV, PtrHXK, PtrPGM, and PtrUGP Gene Families in Populus trichocarpa Torr. and Gray. Int J Mol Sci 2023; 24:17277. [PMID: 38139109 PMCID: PMC10743687 DOI: 10.3390/ijms242417277] [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: 10/14/2023] [Revised: 11/21/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Exogenous nitrogen and carbon can affect plant cell walls, which are composed of structural carbon. Sucrose synthase (SUS), invertase (INV), hexokinase (HXK), phosphoglucomutase (PGM), and UDP-glucose pyrophosphorylase (UGP) are the key enzymes of sucrose metabolism involved in cell wall synthesis. To understand whether these genes are regulated by carbon and nitrogen to participate in structural carbon biosynthesis, we performed genome-wide identification, analyzed their expression patterns under different carbon and nitrogen treatments, and conducted preliminary functional verification. Different concentrations of nitrogen and carbon were applied to poplar (Populus trichocarpa Torr. and Gray), which caused changes in cellulose, lignin, and hemicellulose contents. In poplar, 6 SUSs, 20 INVs, 6 HXKs, 4 PGMs, and 2 UGPs were identified. Moreover, the physicochemical properties, collinearity, and tissue specificity were analyzed. The correlation analysis showed that the expression levels of PtrSUS3/5, PtrNINV1/2/3/5/12, PtrCWINV3, PtrVINV2, PtrHXK5/6, PtrPGM1/2, and PtrUGP1 were positively correlated with the cellulose content. Meanwhile, the knockout of PtrNINV12 significantly reduced the cellulose content. This study could lay the foundation for revealing the functions of SUSs, INVs, HXKs, PGMs, and UGPs, which affected structural carbon synthesis regulated by nitrogen and carbon, proving that PtrNINV12 is involved in cell wall synthesis.
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Affiliation(s)
- Shuang Zhang
- College of Life Science, Northeast Forestry University, Harbin 150040, China; (S.Z.); (W.W.); (R.C.)
| | - Wenjie Wang
- College of Life Science, Northeast Forestry University, Harbin 150040, China; (S.Z.); (W.W.); (R.C.)
| | - Ruhui Chang
- College of Life Science, Northeast Forestry University, Harbin 150040, China; (S.Z.); (W.W.); (R.C.)
| | - Jiajie Yu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China;
| | - Junxin Yan
- College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China;
| | - Wenxi Yu
- Heilongjiang Forestry Academy of Science, Harbin 150081, China;
| | - Chunming Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China;
| | - Zhiru Xu
- College of Life Science, Northeast Forestry University, Harbin 150040, China; (S.Z.); (W.W.); (R.C.)
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China;
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Wan H, Zhang Y, Wu L, Zhou G, Pan L, Fernie AR, Ruan YL. Evolution of cytosolic and organellar invertases empowered the colonization and thriving of land plants. PLANT PHYSIOLOGY 2023; 193:1227-1243. [PMID: 37429000 PMCID: PMC10661998 DOI: 10.1093/plphys/kiad401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/06/2023] [Accepted: 06/12/2023] [Indexed: 07/12/2023]
Abstract
The molecular innovation underpinning efficient carbon and energy metabolism during evolution of land plants remains largely unknown. Invertase-mediated sucrose cleavage into hexoses is central to fuel growth. Why some cytoplasmic invertases (CINs) function in the cytosol, whereas others operate in chloroplasts and mitochondria, is puzzling. We attempted to shed light on this question from an evolutionary perspective. Our analyses indicated that plant CINs originated from a putatively orthologous ancestral gene in cyanobacteria and formed the plastidic CIN (α1 clade) through endosymbiotic gene transfer, while its duplication in algae with a loss of its signal peptide produced the β clade CINs in the cytosol. The mitochondrial CINs (α2) were derived from duplication of the plastidic CINs and coevolved with vascular plants. Importantly, the copy number of mitochondrial and plastidic CINs increased upon the emergence of seed plants, corresponding with the rise of respiratory, photosynthetic, and growth rates. The cytosolic CIN (β subfamily) kept expanding from algae to gymnosperm, indicating its role in supporting the increase in carbon use efficiency during evolution. Affinity purification mass spectrometry identified a cohort of proteins interacting with α1 and 2 CINs, which points to their roles in plastid and mitochondrial glycolysis, oxidative stress tolerance, and the maintenance of subcellular sugar homeostasis. Collectively, the findings indicate evolutionary roles of α1 and α2 CINs in chloroplasts and mitochondria for achieving high photosynthetic and respiratory rates, respectively, which, together with the expanding of cytosolic CINs, likely underpin the colonization of land plants through fueling rapid growth and biomass production.
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Affiliation(s)
- Hongjian Wan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Youjun Zhang
- Center for Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria
- Department of Molecular Physiology, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm 14476, Germany
| | - Limin Wu
- Food and Agriculture, CSIRO, ACT, Canberra 2601, Australia
| | - Guozhi Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Luzhao Pan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Alisdair R Fernie
- Center for Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria
- Department of Molecular Physiology, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm 14476, Germany
| | - Yong-Ling Ruan
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Horticulture, Northwest A&F University, Xianyang 712100, China
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
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5
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Barbosa ACO, Rocha DS, Silva GCB, Santos MGM, Camillo LR, de Oliveira PHGA, Cavalari AA, Costa MGC. Dynamics of the sucrose metabolism and related gene expression in tomato fruits under water deficit. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:159-172. [PMID: 36875726 PMCID: PMC9981854 DOI: 10.1007/s12298-023-01288-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
The impact of water deficit on sucrose metabolism in sink organs like the fruit remains poorly known despite the need to improve fruit crops resilience to drought in the face of climate change. The present study investigated the effects of water deficit on sucrose metabolism and related gene expression in tomato fruits, aiming to identify candidate genes for improving fruit quality upon low water availability. Tomato plants were subjected to irrigated control and water deficit (-60% water supply compared to control) treatments, which were applied from the first fruit set to first fruit maturity stages. The results have shown that water deficit significantly reduced fruit dry biomass and number, among other plant physiological and growth variables, but substantially increased the total soluble solids content. The determination of soluble sugars on the basis of fruit dry weight revealed an active accumulation of sucrose and concomitant reduction in glucose and fructose levels in response to water deficit. The complete repertoire of genes encoding sucrose synthase (SUSY1-7), sucrose-phosphate synthase (SPS1-4), and cytosolic (CIN1-8), vacuolar (VIN1-2) and cell wall invertases (WIN1-4) was identified and characterized, of which SlSUSY4, SlSPS1, SlCIN3, SlVIN2, and SlCWIN2 were shown to be positively regulated by water deficit. Collectively, these results show that water deficit regulates positively the expression of certain genes from different gene families related to sucrose metabolism in fruits, favoring the active accumulation of sucrose in this organ under water-limiting conditions. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01288-7.
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Affiliation(s)
- Ana C. O. Barbosa
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia 45662-900 Brazil
| | - Dilson S. Rocha
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia 45662-900 Brazil
| | - Glaucia C. B. Silva
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia 45662-900 Brazil
| | - Miguel G. M. Santos
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia 45662-900 Brazil
| | - Luciana R. Camillo
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia 45662-900 Brazil
| | - Paulo H. G. A. de Oliveira
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia 45662-900 Brazil
| | - Aline A. Cavalari
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo, São Paulo, Diadema 09913-030 Brazil
| | - Marcio G. C. Costa
- Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia 45662-900 Brazil
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Huang W, Li Y, Du Y, Pan L, Huang Y, Liu H, Zhao Y, Shi Y, Ruan YL, Dong Z, Jin W. Maize cytosolic invertase INVAN6 ensures faithful meiotic progression under heat stress. THE NEW PHYTOLOGIST 2022; 236:2172-2188. [PMID: 36104957 DOI: 10.1111/nph.18490] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Faithful meiotic progression ensures the generation of viable gametes. Studies suggested the male meiosis of plants is sensitive to ambient temperature, but the underlying molecular mechanisms remain elusive. Here, we characterized a maize (Zea mays ssp. mays L.) dominant male sterile mutant Mei025, in which the meiotic process of pollen mother cells (PMCs) was arrested after pachytene. An Asp-to-Asn replacement at position 276 of INVERTASE ALKALINE NEUTRAL 6 (INVAN6), a cytosolic invertase (CIN) that predominantly exists in PMCs and specifically hydrolyses sucrose, was revealed to cause meiotic defects in Mei025. INVAN6 interacts with itself as well as with four other CINs and seven 14-3-3 proteins. Although INVAN6Mei025 , the variant of INVAN6 found in Mei025, lacks hydrolytic activity entirely, its presence is deleterious to male meiosis, possibly in a dominant negative repression manner through interacting with its partner proteins. Notably, heat stress aggravated meiotic defects in invan6 null mutant. Further transcriptome data suggest INVAN6 has a fundamental role for sugar homeostasis and stress tolerance of male meiocytes. In summary, this work uncovered the function of maize CIN in male meiosis and revealed the role of CIN-mediated sugar metabolism and signalling in meiotic progression under heat stress.
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Affiliation(s)
- Wei Huang
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
- Sanya Institute of China Agricultural University, Sanya, 572025, China
| | - Yunfei Li
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Yan Du
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
| | - Lingling Pan
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Yumin Huang
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Hongbing Liu
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Yue Zhao
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Yunlu Shi
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Yong-Ling Ruan
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Zhaobin Dong
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Weiwei Jin
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization (MOE), Joint Laboratory for International Cooperation in Crop Molecular Breeding (MOE), China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
- Sanya Institute of China Agricultural University, Sanya, 572025, China
- Fresh Corn Research Center of BTH, College of Agronomy & Resources and Environment, Tianjin Agricultural University, Tianjin, 300384, China
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7
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Ergon Å, Milvang ØW, Skøt L, Ruttink T. Identification of loci controlling timing of stem elongation in red clover using genotyping by sequencing of pooled phenotypic extremes. Mol Genet Genomics 2022; 297:1587-1600. [PMID: 36001174 DOI: 10.1007/s00438-022-01942-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 08/07/2022] [Indexed: 10/15/2022]
Abstract
MAIN CONCLUSION Through selective genotyping of pooled phenotypic extremes, we identified a number of loci and candidate genes putatively controlling timing of stem elongation in red clover. We have identified candidate genes controlling the timing of stem elongation prior to flowering in red clover (Trifolium pratense L.). This trait is of ecological and agronomic significance, as it affects fitness, competitivity, climate adaptation, forage and seed yield, and forage quality. We genotyped replicate pools of phenotypically extreme individuals (early and late-elongating) within cultivar Lea using genotyping-by-sequencing in pools (pool-GBS). After calling and filtering SNPs and GBS locus haplotype polymorphisms, we estimated allele frequencies and searched for markers with significantly different allele frequencies in the two phenotypic groups using BayeScan, an FST-based test utilizing replicate pools, and a test based on error variance of replicate pools. Of the three methods, BayeScan was the least stringent, and the error variance-based test the most stringent. Fifteen significant markers were identified in common by all three tests. The candidate genes flanking the markers include genes with potential roles in the vernalization, autonomous, and photoperiod regulation of floral transition, hormonal regulation of stem elongation, and cell growth. These results provide a first insight into the potential genes and mechanisms controlling transition to stem elongation in a perennial legume, which lays a foundation for further functional studies of the genetic determinants regulating this important trait.
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Affiliation(s)
- Åshild Ergon
- Department of Plant Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway.
| | - Øystein W Milvang
- Department of Plant Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Leif Skøt
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, UK
| | - Tom Ruttink
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant Sciences Unit, Caritasstraat 39, B-9090 Melle, Belgium
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Wang YJ, Zhen XH, Zhou YJ, Wang YL, Hou JY, Wang X, Li RM, Liu J, Hu XW, Geng MT, Yao Y, Guo JC. MeNINV1: An Alkaline/Neutral Invertase Gene of Manihot esculenta, Enhanced Sucrose Catabolism and Promoted Plant Vegetative Growth in Transgenic Arabidopsis. PLANTS 2022; 11:plants11070946. [PMID: 35406926 PMCID: PMC9003190 DOI: 10.3390/plants11070946] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/16/2022] [Accepted: 03/25/2022] [Indexed: 11/16/2022]
Abstract
Alkaline/neutral invertase (A/N-INV) is an invertase that irreversibly decomposes sucrose into fructose as well as glucose and plays a role in plant growth and development, starch synthesis, abiotic stress, and other plant-life activities. Cassava is an economically important starch crop in tropical regions. During the development of cassava tuber roots, A/N-INV activity is relatively high, which indicates that it may participate in sucrose metabolism and starch synthesis. In this study, MeNINV1 was confirmed to function as invertase to catalyze sucrose decomposition in yeast. The optimal enzymatic properties of MeNINV1 were a pH of 6.5, a reaction temperature of 40 °C, and sucrose as its specific catalytic substrate. VB6, Zn2+, and Pb2+ at low concentrations as well as EDTA, DTT, Tris, Mg2+, and fructose inhibited A/N-INV enzymic activity. In cassava, the MeNINV1 gene was mainly expressed in the fibrous roots and the tuber root phloem, and its expression decreased as the tuber root grew. MeNINV1 was confirmed to localize in chloroplasts. In Arabidopsis, MeNINV1-overexpressing Arabidopsis had higher A/N-INV activity, and the increased glucose, fructose, and starch content in the leaves promoted plant growth and delayed flowering time but did not change its resistance to abiotic stress. Our results provide new insights into the biological function of MeNINV1.
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Affiliation(s)
- Ya-Jie Wang
- School of Life Sciences, Hainan University, Haikou 570228, China; (Y.-J.W.); (X.-H.Z.); (Y.-J.Z.); (J.-Y.H.); (X.W.); (X.-W.H.)
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (Y.-L.W.); (R.-M.L.); (J.L.)
| | - Xing-Hou Zhen
- School of Life Sciences, Hainan University, Haikou 570228, China; (Y.-J.W.); (X.-H.Z.); (Y.-J.Z.); (J.-Y.H.); (X.W.); (X.-W.H.)
| | - Yang-Jiao Zhou
- School of Life Sciences, Hainan University, Haikou 570228, China; (Y.-J.W.); (X.-H.Z.); (Y.-J.Z.); (J.-Y.H.); (X.W.); (X.-W.H.)
| | - Yun-Lin Wang
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (Y.-L.W.); (R.-M.L.); (J.L.)
| | - Jing-Yi Hou
- School of Life Sciences, Hainan University, Haikou 570228, China; (Y.-J.W.); (X.-H.Z.); (Y.-J.Z.); (J.-Y.H.); (X.W.); (X.-W.H.)
| | - Xin Wang
- School of Life Sciences, Hainan University, Haikou 570228, China; (Y.-J.W.); (X.-H.Z.); (Y.-J.Z.); (J.-Y.H.); (X.W.); (X.-W.H.)
| | - Rui-Mei Li
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (Y.-L.W.); (R.-M.L.); (J.L.)
| | - Jiao Liu
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (Y.-L.W.); (R.-M.L.); (J.L.)
| | - Xin-Wen Hu
- School of Life Sciences, Hainan University, Haikou 570228, China; (Y.-J.W.); (X.-H.Z.); (Y.-J.Z.); (J.-Y.H.); (X.W.); (X.-W.H.)
| | - Meng-Ting Geng
- School of Life Sciences, Hainan University, Haikou 570228, China; (Y.-J.W.); (X.-H.Z.); (Y.-J.Z.); (J.-Y.H.); (X.W.); (X.-W.H.)
- Correspondence: (M.-T.G.); (Y.Y.); (J.-C.G.); Tel.: +86-898-6696-2953 (Y.Y.); +86-898-6696-2953 (J.-C.G.)
| | - Yuan Yao
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (Y.-L.W.); (R.-M.L.); (J.L.)
- Correspondence: (M.-T.G.); (Y.Y.); (J.-C.G.); Tel.: +86-898-6696-2953 (Y.Y.); +86-898-6696-2953 (J.-C.G.)
| | - Jian-Chun Guo
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (Y.-L.W.); (R.-M.L.); (J.L.)
- Correspondence: (M.-T.G.); (Y.Y.); (J.-C.G.); Tel.: +86-898-6696-2953 (Y.Y.); +86-898-6696-2953 (J.-C.G.)
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9
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Goetz M, Rabinovich M, Smith HM. The role of auxin and sugar signaling in dominance inhibition of inflorescence growth by fruit load. PLANT PHYSIOLOGY 2021; 187:1189-1201. [PMID: 34734274 PMCID: PMC8566266 DOI: 10.1093/plphys/kiab237] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/03/2021] [Indexed: 05/29/2023]
Abstract
Dominance inhibition of shoot growth by fruit load is a major factor that regulates shoot architecture and limits yield in agriculture and horticulture crops. In annual plants, the inhibition of inflorescence growth by fruit load occurs at a late stage of inflorescence development termed the end of flowering transition. Physiological studies show this transition is mediated by production and export of auxin from developing fruits in close proximity to the inflorescence apex. In the meristem, cessation of inflorescence growth is controlled in part by the age-dependent pathway, which regulates the timing of arrest. Here, we show the end of flowering transition is a two-step process in Arabidopsis (Arabidopsis thaliana). The first stage is characterized by a cessation of inflorescence growth, while immature fruit continues to develop. At this stage, dominance inhibition of inflorescence growth by fruit load is associated with a selective dampening of auxin transport in the apical region of the stem. Subsequently, an increase in auxin response in the vascular tissues of the apical stem where developing fruits are attached marks the second stage for the end of flowering transition. Similar to the vegetative and floral transition, the end of flowering transition is associated with a change in sugar signaling and metabolism in the inflorescence apex. Taken together, our results suggest that during the end of flowering transition, dominance inhibition of inflorescence shoot growth by fruit load is mediated by auxin and sugar signaling.
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Affiliation(s)
- Marc Goetz
- CSIRO Agriculture and Food, Locked Bag 2, Glen Osmond, SA 5064, Australia
| | - Maia Rabinovich
- CSIRO Agriculture and Food, Locked Bag 2, Glen Osmond, SA 5064, Australia
| | - Harley M Smith
- CSIRO Agriculture and Food, Locked Bag 2, Glen Osmond, SA 5064, Australia
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10
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Li W, Huang L, Liu N, Pandey MK, Chen Y, Cheng L, Guo J, Yu B, Luo H, Zhou X, Huai D, Chen W, Yan L, Wang X, Lei Y, Varshney RK, Liao B, Jiang H. Key Regulators of Sucrose Metabolism Identified through Comprehensive Comparative Transcriptome Analysis in Peanuts. Int J Mol Sci 2021; 22:ijms22147266. [PMID: 34298903 PMCID: PMC8306169 DOI: 10.3390/ijms22147266] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 12/02/2022] Open
Abstract
Sucrose content is a crucial indicator of quality and flavor in peanut seed, and there is a lack of clarity on the molecular basis of sucrose metabolism in peanut seed. In this context, we performed a comprehensive comparative transcriptome study on the samples collected at seven seed development stages between a high-sucrose content variety (ICG 12625) and a low-sucrose content variety (Zhonghua 10). The transcriptome analysis identified a total of 8334 genes exhibiting significantly different abundances between the high- and low-sucrose varieties. We identified 28 differentially expressed genes (DEGs) involved in sucrose metabolism in peanut and 12 of these encoded sugars will eventually be exported transporters (SWEETs). The remaining 16 genes encoded enzymes, such as cell wall invertase (CWIN), vacuolar invertase (VIN), cytoplasmic invertase (CIN), cytosolic fructose-bisphosphate aldolase (FBA), cytosolic fructose-1,6-bisphosphate phosphatase (FBP), sucrose synthase (SUS), cytosolic phosphoglucose isomerase (PGI), hexokinase (HK), and sucrose-phosphate phosphatase (SPP). The weighted gene co-expression network analysis (WGCNA) identified seven genes encoding key enzymes (CIN, FBA, FBP, HK, and SPP), three SWEET genes, and 90 transcription factors (TFs) showing a high correlation with sucrose content. Furthermore, upon validation, six of these genes were successfully verified as exhibiting higher expression in high-sucrose recombinant inbred lines (RILs). Our study suggested the key roles of the high expression of SWEETs and enzymes in sucrose synthesis making the genotype ICG 12625 sucrose-rich. This study also provided insights into the molecular basis of sucrose metabolism during seed development and facilitated exploring key candidate genes and molecular breeding for sucrose content in peanuts.
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Affiliation(s)
- Weitao Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Li Huang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Nian Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Manish K. Pandey
- Center of Excellence in Genomics & Systems Biology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad 502324, India; (M.K.P.); (R.K.V.)
| | - Yuning Chen
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Liangqiang Cheng
- Oil Research Institute of Guizhou Province, Guizhou Academy of Agricultural Science, Guiyang 550006, China;
| | - Jianbin Guo
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Bolun Yu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Huaiyong Luo
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Xiaojing Zhou
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Dongxin Huai
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Weigang Chen
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Liying Yan
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Xin Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Yong Lei
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Rajeev K. Varshney
- Center of Excellence in Genomics & Systems Biology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad 502324, India; (M.K.P.); (R.K.V.)
- State Agricultural Biotechnology Centre, Centre for Crop and Food Innovation, Murdoch University, Murdoch 6150, Australia
| | - Boshou Liao
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
| | - Huifang Jiang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.L.); (L.H.); (N.L.); (Y.C.); (J.G.); (B.Y.); (H.L.); (X.Z.); (D.H.); (W.C.); (L.Y.); (X.W.); (Y.L.); (B.L.)
- Correspondence: ; Tel.: +86-27-8671-1550; Fax: +86-27-8681-6451
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11
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Cisneros-Hernández I, Vargas-Ortiz E, Sánchez-Martínez ES, Martínez-Gallardo N, Soto González D, Délano-Frier JP. Highest Defoliation Tolerance in Amaranthus cruentus Plants at Panicle Development Is Associated With Sugar Starvation Responses. FRONTIERS IN PLANT SCIENCE 2021; 12:658977. [PMID: 34163500 PMCID: PMC8215675 DOI: 10.3389/fpls.2021.658977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/19/2021] [Indexed: 05/15/2023]
Abstract
Defoliation tolerance (DT) in Amaranthus cruentus is known to reach its apex at the panicle emergence (PE) phase and to decline to minimal levels at flowering (FL). In this study, defoliation-induced changes were recorded in the content of non-structural carbohydrates and raffinose family oligosaccharides (RFOs), and in the expression and/or activity of sugar starvation response-associated genes in plants defoliated at different vegetative and reproductive stages. This strategy identified sugar-starvation-related factors that explained the opposite DT observed at these key developmental stages. Peak DT at PE was associated with increased cytosolic invertase (CI) activity in all organs and with the extensive induction of various class II trehalose-phosphate synthase (TPS) genes. Contrariwise, least DT at FL coincided with a sharp depletion of starch reserves and with sucrose (Suc) accumulation, in leaves and stems, the latter of which was consistent with very low levels of CI and vacuolar invertase activities that were not further modified by defoliation. Increased Suc suggested growth-inhibiting conditions associated with altered cytosolic Suc-to-hexose ratios in plants defoliated at FL. Augmented cell wall invertase activity in leaves and roots, probably acting in a regulatory rather than hydrolytic role, was also associated with minimal DT observed at FL. The widespread contrast in gene expression patterns in panicles also matched the opposite DT observed at PE and FL. These results reinforce the concept that a localized sugar starvation response caused by C partitioning is crucial for DT in grain amaranth.
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Affiliation(s)
| | - Erandi Vargas-Ortiz
- Facultad de Agrobiología, Universidad Michoacana de San Nicolás de Hidalgo, Uruapan, Mexico
| | | | | | | | - John Paul Délano-Frier
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Irapuato, Mexico
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12
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Zhou Y, Underhill SJR. Differential transcription pathways associated with rootstock-induced dwarfing in breadfruit (Artocarpus altilis) scions. BMC PLANT BIOLOGY 2021; 21:261. [PMID: 34090350 PMCID: PMC8178858 DOI: 10.1186/s12870-021-03013-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/26/2021] [Indexed: 05/07/2023]
Abstract
BACKGROUND Breadfruit (Artocarpus altilis) is a traditional staple tree crop throughout the tropics. Through interspecific grafting, a dwarf phenotype with over 50% reduction in plant height was identified when marang (Artocarpus odoratissimus) rootstocks were used. However, the molecular mechanism underlying the rootstock-induced breadfruit dwarfing is poorly understood. RESULTS An RNA-sequencing study of breadfruit scions at 22 months after grafting identified 5409 differentially expressed genes (DEGs) of which 2069 were upregulated and 3339 were downregulated in scion stems on marang rootstocks compared to those on self-graft. The DEGs were predominantly enriched for biological processes involved in carbon metabolism, cell wall organization, plant hormone signal transduction and redox homeostasis. The down-regulation of genes encoding vacuolar acid invertases and alkaline/neutral invertases, was consistent with the decreased activity of both enzymes, accompanying with a higher sucrose but lower glucose and fructose levels in the tissues. Key genes of biosynthetic pathways for amino acids, lipids and cell wall were down regulated, reflecting reduction of sucrose utilisation for stem growth on dwarfing rootstocks. Genes encoding sugar transporters, amino acid transporters, choline transporters, along with large number of potassium channels and aquaporin family members were down-regulated in scion stems on marang rootstocks. Lower activity of plasma membrane H+-ATPase, together with the predominance of genes encoding expansins, wall-associated receptor kinases and key enzymes for biosynthesis and re-modelling of cellulose, xyloglucans and pectins in down-regulated DGEs suggested impairment of cell expansion. Signalling pathways of auxin and gibberellin, along with strigolacton and brassinosteroid biosynthetic genes dominated the down-regulated DEGs. Phenylpropanoid pathway was enriched, with key lignin biosynthetic genes down-regulated, and flavonoid biosynthetic genes upregulated in scions on marang rootstocks. Signalling pathways of salicylic acid, jasmonic acid, ethylene and MAPK cascade were significantly enriched in the upregulated DEGs. CONCLUSIONS Rootstock-induced disruption in pathways regulating nutrient transport, sucrose utilisation, cell wall biosynthesis and networks of hormone transduction are proposed to impair cell expansion and stem elongation, leading to dwarf phenotype in breadfruit scions. The information provides opportunity to develop screening strategy for rootstock breeding and selection for breadfruit dwarfing.
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Affiliation(s)
- Yuchan Zhou
- Australian Centre for Pacific Islands Research, University of the Sunshine Coast, Sippy Downs, QLD, 4556, Australia.
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Steven J R Underhill
- Australian Centre for Pacific Islands Research, University of the Sunshine Coast, Sippy Downs, QLD, 4556, Australia
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, St Lucia, QLD, 4072, Australia
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13
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Coluccio Leskow C, Conte M, Del Pozo T, Bermúdez L, Lira BS, Gramegna G, Baroli I, Burgos E, Zavallo D, Kamenetzky L, Asís R, Gonzalez M, Fernie AR, Rossi M, Osorio S, Carrari F. The cytosolic invertase NI6 affects vegetative growth, flowering, fruit set, and yield in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2525-2543. [PMID: 33367755 DOI: 10.1093/jxb/eraa594] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
Sucrose metabolism is important for most plants, both as the main source of carbon and via signaling mechanisms that have been proposed for this molecule. A cleaving enzyme, invertase (INV) channels sucrose into sink metabolism. Although acid soluble and insoluble invertases have been largely investigated, studies on the role of neutral invertases (A/N-INV) have lagged behind. Here, we identified a tomato A/N-INV encoding gene (NI6) co-localizing with a previously reported quantitative trait locus (QTL) largely affecting primary carbon metabolism in tomato. Of the eight A/N-INV genes identified in the tomato genome, NI6 mRNA is present in all organs, but its expression was higher in sink tissues (mainly roots and fruits). A NI6-GFP fusion protein localized to the cytosol of mesophyll cells. Tomato NI6-silenced plants showed impaired growth phenotype, delayed flowering and a dramatic reduction in fruit set. Global gene expression and metabolite profile analyses of these plants revealed that NI6 is not only essential for sugar metabolism, but also plays a signaling role in stress adaptation. We also identified major hubs, whose expression patterns were greatly affected by NI6 silencing; these hubs were within the signaling cascade that coordinates carbohydrate metabolism with growth and development in tomato.
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Affiliation(s)
- Carla Coluccio Leskow
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (IB-INTA), and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), B1712WAA Hurlingham, Argentina
| | - Mariana Conte
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (IB-INTA), and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), B1712WAA Hurlingham, Argentina
| | - Talia Del Pozo
- Centro Tecnológico de Recursos Vegetales, Escuela de Agronomía, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - Luisa Bermúdez
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (IB-INTA), and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), B1712WAA Hurlingham, Argentina
- Cátedra de Genética, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Bruno Silvestre Lira
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Giovanna Gramegna
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Irene Baroli
- Instituto de Biodiversidad y Biología Experimental Aplicada., IBBEA, CONICET, Buenos Aires, Argentina
| | - Estanislao Burgos
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Diego Zavallo
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (IB-INTA), and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), B1712WAA Hurlingham, Argentina
| | - Laura Kamenetzky
- Laboratorio de Genómica y Bioinformática de Patógenos. iB3 | Instituto de Biociencias, Biotecnología y Biología traslacional. Departamento de Fisiologia y Biologia Molecular y Celular Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
| | - Ramón Asís
- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Mauricio Gonzalez
- Centro Tecnológico de Recursos Vegetales, Escuela de Agronomía, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - Alisdair Robert Fernie
- Max Planck Institute for Molecular Plant Physiology, Wissenschafts Park Golm, Am Mühlenberg 1, Potsdam-Golm, D-14 476, Germany
| | - Magdalena Rossi
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Sonia Osorio
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," University of Malaga-Consejo Superior de Investigaciones Científicas, Department of Molecular Biology and Biochemistry, Campus de Teatinos, 29071 Malaga, Spain
| | - Fernando Carrari
- Cátedra de Genética, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
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14
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Pignocchi C, Ivakov A, Feil R, Trick M, Pike M, Wang TL, Lunn JE, Smith AM. Restriction of cytosolic sucrose hydrolysis profoundly alters development, metabolism, and gene expression in Arabidopsis roots. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:1850-1863. [PMID: 33378456 PMCID: PMC7921298 DOI: 10.1093/jxb/eraa581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 12/10/2020] [Indexed: 05/28/2023]
Abstract
Plant roots depend on sucrose imported from leaves as the substrate for metabolism and growth. Sucrose and hexoses derived from it are also signalling molecules that modulate growth and development, but the importance for signalling of endogenous changes in sugar levels is poorly understood. We report that reduced activity of cytosolic invertase, which converts sucrose to hexoses, leads to pronounced metabolic, growth, and developmental defects in roots of Arabidopsis (Arabidopsis thaliana) seedlings. In addition to altered sugar and downstream metabolite levels, roots of cinv1 cinv2 mutants have reduced elongation rates, cell and meristem size, abnormal meristematic cell division patterns, and altered expression of thousands of genes of diverse functions. Provision of exogenous glucose to mutant roots repairs relatively few of the defects. The extensive transcriptional differences between mutant and wild-type roots have hallmarks of both high sucrose and low hexose signalling. We conclude that the mutant phenotype reflects both low carbon availability for metabolism and growth and complex sugar signals derived from elevated sucrose and depressed hexose levels in the cytosol of mutant roots. Such reciprocal changes in endogenous sucrose and hexose levels potentially provide rich information about sugar status that translates into flexible adjustments of growth and development.
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Affiliation(s)
| | - Alexander Ivakov
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Potsdam-Golm, Am Mühlenberg, Potsdam-Golm, Germany
| | - Regina Feil
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Potsdam-Golm, Am Mühlenberg, Potsdam-Golm, Germany
| | - Martin Trick
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Marilyn Pike
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - Trevor L Wang
- John Innes Centre, Norwich Research Park, Norwich, UK
| | - John E Lunn
- Max Planck Institute of Molecular Plant Physiology, Wissenschaftspark Potsdam-Golm, Am Mühlenberg, Potsdam-Golm, Germany
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Wang ZH, Liu S, Zhang Q, Jiang J. RNA interference silencing of the cytoplasmic invertases SlCIN7 leads to reduction in pollen viability and parthenocarpic fruit in tomato. Gene 2020; 771:145367. [PMID: 33346101 DOI: 10.1016/j.gene.2020.145367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/04/2020] [Accepted: 12/11/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Zhi-He Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning 110866, China; Weifang University of Science and Technology, Shouguang 262700, China
| | - Shuang Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Qiongqiong Zhang
- College of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Jing Jiang
- College of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning 110866, China; Key Laboratory of Protected Horticulture of Education Ministry, Shenyang, Liaoning 110866, China.
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16
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GhN/AINV13 positively regulates cotton stress tolerance by interacting with the 14-3-3 protein. Genomics 2020; 113:44-56. [PMID: 33276005 DOI: 10.1016/j.ygeno.2020.11.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 11/27/2020] [Accepted: 11/29/2020] [Indexed: 02/06/2023]
Abstract
Neutral/alkaline invertases (N/AINVs) are sucrose hydrolases with important roles in plants. In this study, 15, 15, 15, 29, and 30 N/AINVs were identified in the Gossypium species, G. raimondii, G. herbaceum, G. arboreum, G. hirsutum, and G. barbadense, respectively. Along with two previously discovered branches, α and β, a new clade γ was first discovered in our study. Investigation of gene collinearity showed that whole-genome duplication (WGD) and polyploidization were responsible for the expansion of the N/AINV gene family in allopolyploid Gossypium. Moreover, expression patterns revealed that GhN/AINV3/13/17/23/24/28 from the β clade is highly expressed during the period of fiber initiation. The invertase activity of GhN/AINV13 and GhN/AINV23 were confirmed by restoring defects of invertase-deficient yeast mutant SEY2102. Treatments of abiotic stress showed that most GhN/AINVs were induced in response to polyethylene glycol (PEG) or salt stress. A virus-induced gene-silencing (VIGS) experiment and yeast two-hybrid assay demonstrated that GhN/AINV13 may interact with their positive regulators Gh14-3-3 proteins and participate in the fiber initiation or stress tolerance of cotton. Our results provided fundamental information regarding N/AINVs and highlight their potential functions in cotton stress tolerance.
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Wang Z, Hassan MU, Nadeem F, Wu L, Zhang F, Li X. Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-Analysis. FRONTIERS IN PLANT SCIENCE 2020; 10:1727. [PMID: 32038691 PMCID: PMC6992656 DOI: 10.3389/fpls.2019.01727] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 12/09/2019] [Indexed: 05/19/2023]
Abstract
Magnesium deficiency is a frequently occurring limiting factor for crop production due to low levels of exchangeable Mg (ex-Mg) in acidic soil, which negatively affects sustainability of agriculture development. How Mg fertilization affects crop yield and subsequent physiological outcomes in different crop species, as well as agronomic efficiencies of Mg fertilizers, under varying soil conditions remain particular interesting questions to be addressed. A meta-analysis was performed with 570 paired observations retrieved from 99 field research articles to compare effects of Mg fertilization on crop production and corresponding agronomic efficiencies in different production systems under varying soil conditions. The mean value of yield increase and agronomic efficiency derived from Mg application was 8.5% and 34.4 kg kg-1 respectively, when combining all yield measurements together, regardless of the crop type, soil condition, and other factors. Under severe Mg deficiency (ex-Mg < 60 mg kg-1), yield increased up to 9.4%, nearly two folds of yield gain (4.9%) in the soil containing more than 120 mg kg-1 ex-Mg. The effects of Mg fertilization on yield was 11.3% when soil pH was lower than 6.5. The agronomic efficiency of Mg fertilizers was negatively correlated with application levels of Mg, with 38.3 kg kg-1 at lower MgO levels (0-50 kg ha-1) and 32.6 kg kg-1 at higher MgO levels (50-100 kg ha-1). Clear interactions existed between soil ex-Mg, pH, and types and amount of Mg fertilizers in terms of crop yield increase. With Mg supplementation, Mg accumulation in the leaf tissues increased by 34.3% on average; and concentrations of sugar in edible organs were 5.5% higher compared to non-Mg supplemented treatments. Our analysis corroborated that Mg fertilization enhances crop performance by improving yield or resulting in favorable physiological outcomes, providing great potentials for integrated Mg management for higher crop yield and quality.
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Affiliation(s)
- Zheng Wang
- Department of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, China
- National Academy of Agriculture Green Development, China Agricultural University, Beijing, China
- International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Mahmood Ul Hassan
- Department of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, China
| | - Faisal Nadeem
- Department of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, China
| | - Liangquan Wu
- International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Fusuo Zhang
- Department of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, China
- National Academy of Agriculture Green Development, China Agricultural University, Beijing, China
- International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xuexian Li
- Department of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, China
- National Academy of Agriculture Green Development, China Agricultural University, Beijing, China
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18
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Wu T, Liu Z, Yang L, Cheng Y, Tu J, Yang F, Zhu H, Li X, Dai Y, Nie X, Qin Z. The Pyrus bretschneideri invertase gene family: identification, phylogeny and expression patterns. BIOTECHNOL BIOTEC EQ 2020. [DOI: 10.1080/13102818.2020.1745688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Tao Wu
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Zheng Liu
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Li Yang
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Yinsheng Cheng
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Junfan Tu
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Fuchen Yang
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Hongyan Zhu
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Xianming Li
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Yonghong Dai
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Xianshuang Nie
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
| | - Zhongqi Qin
- Department of Pear Research, Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, P.R. China
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19
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Pan L, Guo Q, Chai S, Cheng Y, Ruan M, Ye Q, Wang R, Yao Z, Zhou G, Li Z, Deng M, Jin F, Liu L, Wan H. Evolutionary Conservation and Expression Patterns of Neutral/Alkaline Invertases in Solanum. Biomolecules 2019; 9:biom9120763. [PMID: 31766568 PMCID: PMC6995568 DOI: 10.3390/biom9120763] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/15/2019] [Accepted: 11/20/2019] [Indexed: 01/22/2023] Open
Abstract
The invertase gene family in plants is composed of two subfamilies of enzymes, namely, acid- and neutral/alkaline invertases (cytosolic invertase, CIN). Both can irreversibly cleave sucrose into fructose and glucose, which are thought to play key roles in carbon metabolism and plant growth. CINs are widely found in plants, but little is reported about this family. In this paper, a comparative genomic approach was used to analyze the CIN gene family in Solanum, including Solanum tuberosum, Solanum lycopersicum, Solanum pennellii, Solanum pimpinellifolium, and Solanum melongena. A total of 40 CINs were identified in five Solanum plants, and sequence features, phylogenetic relationships, motif compositions, gene structure, collinear relationship, and expression profile were further analyzed. Sequence analysis revealed a remarkable conservation of CINs in sequence length, gene number, and molecular weight. The previously verified four amino acid residues (D188, E414, Arg430, and Ser547) were also observed in 39 out of 40 CINs in our study, showing to be deeply conserved. The CIN gene family could be distinguished into groups α and β, and α is further subdivided into subgroups α1 and α2 in our phylogenetic tree. More remarkably, each species has an average of four CINs in the α and β groups. Marked interspecies conservation and collinearity of CINs were also further revealed by chromosome mapping. Exon-intron configuration and conserved motifs were consistent in each of these α and β groups on the basis of in silico analysis. Expression analysis indicated that CINs were constitutively expressed and share similar expression profiles in all tested samples from S. tuberosum and S. lycopersicum. In addition, in CIN genes of the tomato and potato in response to abiotic and biotic stresses, phytohormones also performed. Overall, CINs in Solanum were encoded by a small and highly conserved gene family, possibly reflecting structural and functional conservation in Solanum. These results lay the foundation for further expounding the functional characterization of CIN genes and are also significant for understanding the evolutionary profiling of the CIN gene family in Solanum.
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Affiliation(s)
- Luzhao Pan
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China; (L.P.); (S.C.); (L.L.)
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Qinwei Guo
- Quzhou Academy of Agricultural Sciences, Quzhou 324000, Zhejiang, China;
| | - Songlin Chai
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China; (L.P.); (S.C.); (L.L.)
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Yuan Cheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Meiying Ruan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Qingjing Ye
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Rongqing Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Zhuping Yao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Guozhi Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Zhimiao Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
| | - Minghua Deng
- College of Horticulture and landscape, Yunnan Agricultural University, Kunming 650201, China;
| | - Fengmei Jin
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300192, China;
| | - Lecheng Liu
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China; (L.P.); (S.C.); (L.L.)
| | - Hongjian Wan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (Y.C.); (M.R.); (Q.Y.); (R.W.); (Z.Y.); (G.Z.); (Z.L.)
- China-Australia Research Centre for Crop Improvement, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Correspondence: ; Tel.: +86-571-86407677; Fax: +86-571-86400997
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20
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Zhou H, Li C, Qiu X, Lu S. Systematic Analysis of Alkaline/Neutral Invertase Genes Reveals the Involvement of Smi-miR399 in Regulation of SmNINV3 and SmNINV4 in Salvia miltiorrhiza. PLANTS 2019; 8:plants8110490. [PMID: 31717988 PMCID: PMC6918228 DOI: 10.3390/plants8110490] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 01/25/2023]
Abstract
Alkaline/neutral invertases (NINVs), which irreversibly catalyze the hydrolysis of sucrose into fructose and glucose, play crucial roles in carbohydrate metabolism and plant development. Comprehensive insights into NINV genes are lacking in Salvia miltiorrhiza, a well-known traditional Chinese medicinal (TCM) plant with significant medicinal and economic value. Through genome-wide prediction, nine putative SmNINV genes, termed SmNINV1-SmNINV9, were identified. Integrated analysis of gene structures, sequence features, conserved domains, conserved motifs and phylogenetic trees revealed the conservation and divergence of SmNINVs. The identified SmNINVs were differentially expressed in roots, stems, leaves, flowers, and different root tissues. They also responded to drought, salicylic acid, yeast extract, and methyl jasmonate treatments. More importantly, computational prediction and experimental validation showed that SmNINV3 and SmNINV4 were targets of Smi-miR399, a conserved miRNA previously shown to affect Pi uptake and translocation through the cleavage of PHOSPHATE2 (PHO2). Consistently, analysis of 43 NINV genes and 26 miR399 sequences from Arabidopsis thaliana, Populus trichocarpa, Manihot esculenta, and Solanum lycopersicum showed that various AtNINV, PtNINV, MeNINV, and SlNINV genes were regulated by miR399. It indicates that the miR399-NINV module exists widely in plants. Furthermore, Smi-miR399 also cleaved SmPHO2 transcripts in S. miltiorrhiza, suggesting the complexity of NINVs, PHO2, and miR399 networks.
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Affiliation(s)
| | | | | | - Shanfa Lu
- Correspondence: ; Tel./Fax: +86-10-57833366
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21
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Eom SH, Rim Y, Hyun TK. Genome-wide identification and evolutionary analysis of neutral/alkaline invertases in Brassica rapa. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1643784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Seung Hee Eom
- Department of Industrial Plant Science and Technology, College of Agricultural, Life and Environmental Sciences, Chungbuk National University, Cheongju, Republic of Korea
| | - Yeonggil Rim
- Department of Biochemistry, Systems & Synthetic Agrobiotech Center, Gyeongsang National University, Jinju, Republic of Korea
| | - Tae Kyung Hyun
- Department of Industrial Plant Science and Technology, College of Agricultural, Life and Environmental Sciences, Chungbuk National University, Cheongju, Republic of Korea
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22
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Mahboubi A, Niittylä T. Sucrose transport and carbon fluxes during wood formation. PHYSIOLOGIA PLANTARUM 2018; 164:67-81. [PMID: 29572842 DOI: 10.1111/ppl.12729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/05/2018] [Accepted: 03/15/2018] [Indexed: 06/08/2023]
Abstract
Wood biosynthesis defines the chemical and structural properties of wood. The metabolic pathways that produce the precursors of wood cell wall polymers have a central role in defining wood properties. To make rational design of wood properties feasible, we need not only to understand the cell wall biosynthetic machinery, but also how sucrose transport and metabolism in developing wood connect to cell wall biosynthesis and how they respond to genetic and environmental cues. Here, we review the current understanding of the sucrose transport and primary metabolism pathways leading to the precursors of cell wall biosynthesis in woody plant tissues. We present both old, persistent questions and new emerging themes with a focus on wood formation in trees and draw upon evidence from the xylem tissues of herbaceous plants when it is relevant.
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Affiliation(s)
- Amir Mahboubi
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, Umeå, Sweden
| | - Totte Niittylä
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
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23
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Thal B, Braun HP, Eubel H. Proteomic analysis dissects the impact of nodulation and biological nitrogen fixation on Vicia faba root nodule physiology. PLANT MOLECULAR BIOLOGY 2018; 97:233-251. [PMID: 29779088 DOI: 10.1007/s11103-018-0736-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 05/08/2018] [Indexed: 05/25/2023]
Abstract
Symbiotic nitrogen fixation in root nodules of legumes is a highly important biological process which is only poorly understood. Root nodule metabolism differs from that of roots. Differences in root and nodule metabolism are expressed by altered protein abundances and amenable to quantitative proteome analyses. Differences in the proteomes may either be tissue specific and related to the presence of temporary endosymbionts (the bacteroids) or related to nitrogen fixation activity. An experimental setup including WT bacterial strains and strains not able to conduct symbiotic nitrogen fixation as well as root controls enables identification of tissue and nitrogen fixation specific proteins. Root nodules are specialized plant organs housing and regulating the mutual symbiosis of legumes with nitrogen fixing rhizobia. As such, these organs fulfill unique functions in plant metabolism. Identifying the proteins required for the metabolic reactions of nitrogen fixation and those merely involved in sustaining the rhizobia:plant symbiosis, is a challenging task and requires an experimental setup which allows to differentiate between these two physiological processes. Here, quantitative proteome analyses of nitrogen fixing and non-nitrogen fixing nodules as well as fertilized and non-fertilized roots were performed using Vicia faba and Rhizobium leguminosarum. Pairwise comparisons revealed altered enzyme abundance between active and inactive nodules. Similarly, general differences between nodules and root tissue were observed. Together, these results allow distinguishing the proteins directly involved in nitrogen fixation from those related to nodulation. Further observations relate to the control of nodulation by hormones and provide supportive evidence for the previously reported correlation of nitrogen and sulfur fixation in these plant organs. Additionally, data on altered protein abundance relating to alanine metabolism imply that this amino acid may be exported from the symbiosomes of V. faba root nodules in addition to ammonia. Data are available via ProteomeXchange with identifier PXD008548.
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Affiliation(s)
- Beate Thal
- Institut für Pflanzengenetik, Leibniz Universität Hannover, Herrenhäuser Str. 2, 30419, Hanover, Germany
| | - Hans-Peter Braun
- Institut für Pflanzengenetik, Leibniz Universität Hannover, Herrenhäuser Str. 2, 30419, Hanover, Germany
| | - Holger Eubel
- Institut für Pflanzengenetik, Leibniz Universität Hannover, Herrenhäuser Str. 2, 30419, Hanover, Germany.
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24
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Barnes WJ, Anderson CT. Cytosolic invertases contribute to cellulose biosynthesis and influence carbon partitioning in seedlings of Arabidopsis thaliana. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 94:956-974. [PMID: 29569779 DOI: 10.1111/tpj.13909] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/15/2018] [Accepted: 03/08/2018] [Indexed: 05/07/2023]
Abstract
In plants, UDP-glucose is the direct precursor for cellulose biosynthesis, and can be converted into other NDP-sugars required for the biosynthesis of wall matrix polysaccharides. UDP-glucose is generated from sucrose by two distinct metabolic pathways. The first pathway is the direct conversion of sucrose to UDP-glucose and fructose by sucrose synthase. The second pathway involves sucrose hydrolysis by cytosolic invertase (CINV), conversion of glucose to glucose-6-phosphate and glucose-1-phosphate, and UDP-glucose generation by UDP-glucose pyrophosphorylase (UGP). Previously, Barratt et al. (Proc. Natl Acad. Sci. USA, 106, 2009 and 13124) have found that an Arabidopsis double mutant lacking CINV1 and CINV2 displayed drastically reduced growth. Whether this reduced growth is due to deficient cell wall production caused by limited UDP-glucose supply, pleiotropic effects, or both, remained unresolved. Here, we present results indicating that the CINV/UGP pathway contributes to anisotropic growth and cellulose biosynthesis in Arabidopsis. Biochemical and imaging data demonstrate that cinv1 cinv2 seedlings are deficient in UDP-glucose production, exhibit abnormal cellulose biosynthesis and microtubule properties, and have altered cellulose organization without substantial changes to matrix polysaccharide composition, suggesting that the CINV/UGP pathway is a key metabolic route to UDP-glucose synthesis in Arabidopsis. Furthermore, differential responses of cinv1 cinv2 seedlings to exogenous sugar supplementation support a function of CINVs in influencing carbon partitioning in Arabidopsis. From these data and those of previous studies, we conclude that CINVs serve central roles in cellulose biosynthesis and carbon allocation in Arabidopsis.
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Affiliation(s)
- William J Barnes
- Department of Biology, The Pennsylvania State University, University Park, PA, 16802, USA
- Center for Lignocellulose Structure and Formation, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Charles T Anderson
- Department of Biology, The Pennsylvania State University, University Park, PA, 16802, USA
- Center for Lignocellulose Structure and Formation, The Pennsylvania State University, University Park, PA, 16802, USA
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25
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Wan H, Wu L, Yang Y, Zhou G, Ruan YL. Evolution of Sucrose Metabolism: The Dichotomy of Invertases and Beyond. TRENDS IN PLANT SCIENCE 2018; 23:163-177. [PMID: 29183781 DOI: 10.1016/j.tplants.2017.11.001] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/13/2017] [Accepted: 11/02/2017] [Indexed: 05/07/2023]
Abstract
In higher plants, invertases hydrolyze sucrose (Suc), the major end product of photosynthesis, into glucose (Glc) and fructose (Fru), which are used as nutrients, energy sources, and signaling molecules for plant growth, yield formation, and stress responses. The invertase enzymes, named CWINs, VINs, and CINs, are located in the cell wall, vacuole, and cytosol, respectively. We hypothesize, based on their distinctive subcellular locations and physiological roles, that invertases may have undergone different modes during evolution with important functional implications. Here, we provide phylogenetic and functional genomic evidence that CINs are evolutionarily and functionally more stable compared with CWINs and VINs, possibly reflecting their roles in maintaining cytosolic sugar homeostasis for cellular function, and that CWINs have coevolved with the vasculature, likely as a functional component of phloem unloading.
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Affiliation(s)
- Hongjian Wan
- Institute of Vegetables and State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; Australia-China Research Centre for Crop Improvement, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Limin Wu
- Australia-China Research Centre for Crop Improvement, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Yuejian Yang
- Institute of Vegetables and State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Guozhi Zhou
- Institute of Vegetables and State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yong-Ling Ruan
- Australia-China Research Centre for Crop Improvement, The University of Newcastle, Callaghan, NSW 2308, Australia; School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
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26
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Genome-Wide Identification, Expression, and Functional Analysis of the Alkaline/Neutral Invertase Gene Family in Pepper. Int J Mol Sci 2018; 19:ijms19010224. [PMID: 29324672 PMCID: PMC5796173 DOI: 10.3390/ijms19010224] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/05/2018] [Accepted: 01/08/2018] [Indexed: 01/15/2023] Open
Abstract
Alkaline/neutral invertase (NINV) proteins irreversibly cleave sucrose into fructose and glucose, and play important roles in carbohydrate metabolism and plant development. To investigate the role of NINVs in the development of pepper fruits, seven NINV genes (CaNINV1-7) were identified. Phylogenetic analysis revealed that the CaNINV family could be divided into α and β groups. CaNINV1-6 had typical conserved regions and similar protein structures to the NINVs of other plants, while CaNINV7 lacked amino acid sequences at the C-terminus and N-terminus ends. An expression analysis of the CaNINV genes in different tissues demonstrated that CaNINV5 is the dominant NINV in all the examined tissues (root, stem, leaf, bud, flower, and developmental pepper fruits stage). Notably, the expression of CaNINV5 was found to gradually increase at the pre-breaker stages, followed by a decrease at the breaker stages, while it maintained a low level at the post-breaker stages. Furthermore, the invertase activity of CaNINV5 was identified by functional complementation of the invertase-deficient yeast strain SEY2102, and the optimum pH of CaNINV5 was found to be ~7.5. The gene expression and enzymatic activity of CaNINV5 suggest that it might be the main NINV enzyme for hydrolysis of sucrose during pepper fruit development.
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Verbančič J, Lunn JE, Stitt M, Persson S. Carbon Supply and the Regulation of Cell Wall Synthesis. MOLECULAR PLANT 2018; 11:75-94. [PMID: 29054565 DOI: 10.1016/j.molp.2017.10.004] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 10/04/2017] [Accepted: 10/05/2017] [Indexed: 05/23/2023]
Abstract
All plant cells are surrounded by a cell wall that determines the directionality of cell growth and protects the cell against its environment. Plant cell walls are comprised primarily of polysaccharides and represent the largest sink for photosynthetically fixed carbon, both for individual plants and in the terrestrial biosphere as a whole. Cell wall synthesis is a highly sophisticated process, involving multiple enzymes and metabolic intermediates, intracellular trafficking of proteins and cell wall precursors, assembly of cell wall polymers into the extracellular matrix, remodeling of polymers and their interactions, and recycling of cell wall sugars. In this review we discuss how newly fixed carbon, in the form of UDP-glucose and other nucleotide sugars, contributes to the synthesis of cell wall polysaccharides, and how cell wall synthesis is influenced by the carbon status of the plant, with a focus on the model species Arabidopsis (Arabidopsis thaliana).
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Affiliation(s)
- Jana Verbančič
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany; School of Biosciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - John Edward Lunn
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany.
| | - Mark Stitt
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Staffan Persson
- School of Biosciences, University of Melbourne, Parkville, VIC 3010, Australia.
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Silva AT, Ligterink W, Hilhorst HWM. Metabolite profiling and associated gene expression reveal two metabolic shifts during the seed-to-seedling transition in Arabidopsis thaliana. PLANT MOLECULAR BIOLOGY 2017; 95:481-496. [PMID: 29046998 PMCID: PMC5688192 DOI: 10.1007/s11103-017-0665-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 10/04/2017] [Indexed: 05/02/2023]
Abstract
Metabolic and transcriptomic correlation analysis identified two distinctive profiles involved in the metabolic preparation for seed germination and seedling establishment, respectively. Transcripts were identified that may control metabolic fluxes. The transition from a quiescent metabolic state (dry seed) to the active state of a vigorous seedling is crucial in the plant's life cycle. We analysed this complex physiological trait by measuring the changes in primary metabolism that occur during the transition in order to determine which metabolic networks are operational. The transition involves several developmental stages from seed germination to seedling establishment, i.e. between imbibition of the mature dry seed and opening of the cotyledons, the final stage of seedling establishment. We hypothesized that the advancement of growth is associated with certain signature metabolite profiles. Metabolite-metabolite correlation analysis underlined two specific profiles which appear to be involved in the metabolic preparation for seed germination and efficient seedling establishment, respectively. Metabolite profiles were also compared to transcript profiles and although transcriptional changes did not always equate to a proportional metabolic response, in depth correlation analysis identified several transcripts that may directly influence the flux through metabolic pathways during the seed-to-seedling transition. This correlation analysis also pinpointed metabolic pathways which are significant for the seed-to-seedling transition, and metabolite contents that appeared to be controlled directly by transcript abundance. This global view of the transcriptional and metabolic changes during the seed-to-seedling transition in Arabidopsis opens up new perspectives for understanding the complex regulatory mechanism underlying this transition.
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Affiliation(s)
- Anderson Tadeu Silva
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands.
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, USA.
| | - Wilco Ligterink
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Henk W M Hilhorst
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands.
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Battaglia ME, Martin MV, Lechner L, Martínez-Noël GMA, Salerno GL. The riddle of mitochondrial alkaline/neutral invertases: A novel Arabidopsis isoform mainly present in reproductive tissues and involved in root ROS production. PLoS One 2017; 12:e0185286. [PMID: 28945799 PMCID: PMC5612693 DOI: 10.1371/journal.pone.0185286] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 09/08/2017] [Indexed: 01/18/2023] Open
Abstract
Alkaline/neutral invertases (A/N-Inv), glucosidases that irreversibly hydrolyze sucrose into glucose and fructose, play significant roles in plant growth, development, and stress adaptation. They occur as multiple isoforms located in the cytosol or organelles. In Arabidopsis thaliana, two mitochondrial A/N-Inv genes (A/N-InvA and A/N-InvC) have already been investigated. In this study, we functionally characterized A/N-InvH, a third Arabidopsis gene coding for a mitochondrial-targeted protein. The phenotypic analysis of knockout mutant plants (invh) showed a severely reduced shoot growth, while root development was not affected. The emergence of the first floral bud and the opening of the first flower were the most affected stages, presenting a significant delay. A/N-InvH transcription is markedly active in reproductive tissues. It is also expressed in the elongation and apical meristem root zones. Our results show that A/N-InvH expression is not evident in photosynthetic tissues, despite being of relevance in developmental processes and mitochondrial functional status. NaCl and mannitol treatments increased A/N-InvH expression twofold in the columella root cap. Moreover, the absence of A/N-InvH prevented ROS formation, not only in invh roots of salt- and ABA-treated seedlings but also in invh control roots. We hypothesize that this isoform may take part in the ROS/sugar (sucrose or its hydrolysis products) signaling pathway network, involved in reproductive tissue development, cell elongation, and abiotic stress responses.
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Affiliation(s)
- Marina E. Battaglia
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC-CONICET) and Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
| | - María Victoria Martin
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC-CONICET) and Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
| | - Leandra Lechner
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC-CONICET) and Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
| | - Giselle M. A. Martínez-Noël
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC-CONICET) and Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
| | - Graciela L. Salerno
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC-CONICET) and Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
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30
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Roach M, Arrivault S, Mahboubi A, Krohn N, Sulpice R, Stitt M, Niittylä T. Spatially resolved metabolic analysis reveals a central role for transcriptional control in carbon allocation to wood. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68. [PMID: 28645173 PMCID: PMC5853372 DOI: 10.1093/jxb/erx200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The contribution of transcriptional and post-transcriptional regulation to modifying carbon allocation to developing wood of trees is not well defined. To clarify the role of transcriptional regulation, the enzyme activity patterns of eight central primary metabolism enzymes across phloem, cambium, and developing wood of aspen (Populus tremula L.) were compared with transcript levels obtained by RNA sequencing of sequential stem sections from the same trees. Enzymes were selected on the basis of their importance in sugar metabolism and in linking primary metabolism to lignin biosynthesis. Existing enzyme assays were adapted to allow measurements from ~1 mm3 sections of dissected stem tissue. These experiments provided high spatial resolution of enzyme activity changes across different stages of wood development, and identified the gene transcripts probably responsible for these changes. In most cases, there was a clear positive relationship between transcripts and enzyme activity. During secondary cell wall formation, the increases in transcript levels and enzyme activities also matched with increased levels of glucose, fructose, hexose phosphates, and UDP-glucose, emphasizing an important role for transcriptional regulation in carbon allocation to developing aspen wood. These observations corroborate the efforts to increase carbon allocation to wood by engineering gene regulatory networks.
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Affiliation(s)
- Melissa Roach
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | | | - Amir Mahboubi
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Nicole Krohn
- Max Planck Institute for Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Ronan Sulpice
- Max Planck Institute for Molecular Plant Physiology, Potsdam-Golm, Germany
- Plant Systems Biology Laboratory, Plant AgriBiosciences Research Centre, School of Natural Science, Galway, Ireland
| | - Mark Stitt
- Max Planck Institute for Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Totte Niittylä
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
- Correspondence:
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Meng LS, Xu MK, Li D, Zhou MM, Jiang JH. Soluble Sugar Accumulation Can Influence Seed Size via AN3-YDA Gene Cascade. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4121-4132. [PMID: 28489361 DOI: 10.1021/acs.jafc.7b00228] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In higher plants, seed size is central to many aspects in evolutionary fitness and is a crucial agricultural trait. In this study, Arabidopsis an3 (angustifolia3) mutants present with increased seed size. Target-gene analysis revealed that YDA, which encodes a mitogen-activated protein kinase kinase kinase, is a target gene of AN3. Indeed, the loss of YDA function decreases seed size. Furthermore, AN3 and YDA mutations both disrupt normal sucrose and glucose contents and cause altered seed size in an3 or yda mutants. With these results, we provide a molecular model in which soluble sugar accumulation might affect seed size regulation via the AN3-YDA gene cascade. Our findings guide the synthesis of a model that predicts the integration of soluble sugar accumulation at AN3 to control the establishment of seed size.
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Affiliation(s)
- Lai-Sheng Meng
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University , Xuzhou, Jiangsu 221116, People's Republic of China
| | - Meng-Ke Xu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University , Xuzhou, Jiangsu 221116, People's Republic of China
| | - Dan Li
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University , Xuzhou, Jiangsu 221116, People's Republic of China
| | - Ming-Ming Zhou
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University , Xuzhou, Jiangsu 221116, People's Republic of China
| | - Ji-Hong Jiang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University , Xuzhou, Jiangsu 221116, People's Republic of China
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32
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Rende U, Wang W, Gandla ML, Jönsson LJ, Niittylä T. Cytosolic invertase contributes to the supply of substrate for cellulose biosynthesis in developing wood. THE NEW PHYTOLOGIST 2017; 214:796-807. [PMID: 28032636 DOI: 10.1111/nph.14392] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 11/18/2016] [Indexed: 05/08/2023]
Abstract
Carbon for cellulose biosynthesis is derived from sucrose. Cellulose is synthesized from uridine 5'-diphosphoglucose (UDP-glucose), but the enzyme(s) responsible for the initial sucrose cleavage and the source of UDP-glucose for cellulose biosynthesis in developing wood have not been defined. We investigated the role of CYTOSOLIC INVERTASEs (CINs) during wood formation in hybrid aspen (Populus tremula × tremuloides) and characterized transgenic lines with reduced CIN activity during secondary cell wall biosynthesis. Suppression of CIN activity by 38-55% led to a 9-13% reduction in crystalline cellulose. The changes in cellulose were reflected in reduced diameter of acid-insoluble cellulose microfibrils and increased glucose release from wood upon enzymatic digestion of cellulose. Reduced CIN activity decreased the amount of the cellulose biosynthesis precursor UDP-glucose in developing wood, pointing to the likely cause of the cellulose phenotype. The findings suggest that CIN activity has an important role in the cellulose biosynthesis of trees, and indicate that cellulose biosynthesis in wood relies on a quantifiable UDP-glucose pool. The results also introduce a concept of altering cellulose microfibril properties by modifying substrate supply to cellulose biosynthesis.
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Affiliation(s)
- Umut Rende
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE 901 83, Umeå, Sweden
| | - Wei Wang
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE 901 83, Umeå, Sweden
| | | | - Leif J Jönsson
- Department of Chemistry, Umeå University, SE 901 87, Umeå, Sweden
| | - Totte Niittylä
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE 901 83, Umeå, Sweden
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Root nodule symbiosis in Lotus japonicus drives the establishment of distinctive rhizosphere, root, and nodule bacterial communities. Proc Natl Acad Sci U S A 2016; 113:E7996-E8005. [PMID: 27864511 DOI: 10.1073/pnas.1616564113] [Citation(s) in RCA: 181] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Lotus japonicus has been used for decades as a model legume to study the establishment of binary symbiotic relationships with nitrogen-fixing rhizobia that trigger root nodule organogenesis for bacterial accommodation. Using community profiling of 16S rRNA gene amplicons, we reveal that in Lotus, distinctive nodule- and root-inhabiting communities are established by parallel, rather than consecutive, selection of bacteria from the rhizosphere and root compartments. Comparative analyses of wild-type (WT) and symbiotic mutants in Nod factor receptor5 (nfr5), Nodule inception (nin) and Lotus histidine kinase1 (lhk1) genes identified a previously unsuspected role of the nodulation pathway in the establishment of different bacterial assemblages in the root and rhizosphere. We found that the loss of nitrogen-fixing symbiosis dramatically alters community structure in the latter two compartments, affecting at least 14 bacterial orders. The differential plant growth phenotypes seen between WT and the symbiotic mutants in nonsupplemented soil were retained under nitrogen-supplemented conditions that blocked the formation of functional nodules in WT, whereas the symbiosis-impaired mutants maintain an altered community structure in the nitrogen-supplemented soil. This finding provides strong evidence that the root-associated community shift in the symbiotic mutants is a direct consequence of the disabled symbiosis pathway rather than an indirect effect resulting from abolished symbiotic nitrogen fixation. Our findings imply a role of the legume host in selecting a broad taxonomic range of root-associated bacteria that, in addition to rhizobia, likely contribute to plant growth and ecological performance.
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34
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Qian W, Yue C, Wang Y, Cao H, Li N, Wang L, Hao X, Wang X, Xiao B, Yang Y. Identification of the invertase gene family (INVs) in tea plant and their expression analysis under abiotic stress. PLANT CELL REPORTS 2016; 35:2269-2283. [PMID: 27538912 DOI: 10.1007/s00299-016-2033-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 07/25/2016] [Indexed: 05/02/2023]
Abstract
Fourteen invertase genes were identified in the tea plant, all of which were shown to participate in regulating growth and development, as well as in responding to various abiotic stresses. Invertase (INV) can hydrolyze sucrose into glucose and fructose, which plays a principal role in regulating plant growth and development as well as the plants response to various abiotic and biotic stresses. However, currently, there is a lack of reported information, regarding the roles of INVs in either tea plant development or in the tea plants response to various stresses. In this study, 14 INV genes were identified from the transcriptome data of the tea plant (Camellia sinensis (L.) O. Kuntze), and named CsINV1-5 and CsINV7-15. Based on the results of a Blastx search and phylogenetic analysis, the CsINV genes could be clustered into 6 acid invertase (AI) genes and 8 alkaline/neutral invertase (A/N-Inv) genes. The results of tissue-specific expression analysis showed that the transcripts of all the identified CsINV genes are detectable in various tissues. Under various abiotic stress conditions, the expression patterns of the 14 CsINV genes were diverse in both the leaves and roots, and some of them were shown to be significantly expressed. Overall, we hypothesize that the identified CsINV genes all participate in regulating growth and development in the tea plant, and most likely through different signaling pathways that regulate the carbohydrate allocation and the ratio of hexose and sucrose for improving the resistance of the leaves and the roots of the tea plant to various abiotic stresses.
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Affiliation(s)
- Wenjun Qian
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Chuan Yue
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
- Department of Tea Science, College of Horticulture, Fujian A&F University, Fuzhou, 350002, China
| | - Yuchun Wang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Hongli Cao
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
- Department of Tea Science, College of Horticulture, Fujian A&F University, Fuzhou, 350002, China
| | - Nana Li
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Lu Wang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Xinyuan Hao
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China
| | - Xinchao Wang
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China.
| | - Bin Xiao
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Yajun Yang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
- Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou, 310008, China.
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35
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Xie J, Cai K, Hu HX, Jiang YL, Yang F, Hu PF, Cao DD, Li WF, Chen Y, Zhou CZ. Structural Analysis of the Catalytic Mechanism and Substrate Specificity of Anabaena Alkaline Invertase InvA Reveals a Novel Glucosidase. J Biol Chem 2016; 291:25667-25677. [PMID: 27777307 DOI: 10.1074/jbc.m116.759290] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 10/11/2016] [Indexed: 11/06/2022] Open
Abstract
Invertases catalyze the hydrolysis of sucrose to glucose and fructose, thereby playing a key role in primary metabolism and plant development. According to the optimum pH, invertases are classified into acid invertases (Ac-Invs) and alkaline/neutral invertases (A/N-Invs), which share no sequence homology. Compared with Ac-Invs that have been extensively studied, the structure and catalytic mechanism of A/N-Invs remain unknown. Here we report the crystal structures of Anabaena alkaline invertase InvA, which was proposed to be the ancestor of modern plant A/N-Invs. These structures are the first in the GH100 family. InvA exists as a hexamer in both crystal and solution. Each subunit consists of an (α/α)6 barrel core structure in addition to an insertion of three helices. A couple of structures in complex with the substrate or products enabled us to assign the subsites -1 and +1 specifically binding glucose and fructose, respectively. Structural comparison combined with enzymatic assays indicated that Asp-188 and Glu-414 are putative catalytic residues. Further analysis of the substrate binding pocket demonstrated that InvA possesses a stringent substrate specificity toward the α1,2-glycosidic bond of sucrose. Together, we suggest that InvA and homologs represent a novel family of glucosidases.
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Affiliation(s)
- Jin Xie
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Kun Cai
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Hai-Xi Hu
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Yong-Liang Jiang
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Feng Yang
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Peng-Fei Hu
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Dong-Dong Cao
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Wei-Fang Li
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Yuxing Chen
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
| | - Cong-Zhao Zhou
- From the Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, China
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36
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Kryvoruchko IS, Sinharoy S, Torres-Jerez I, Sosso D, Pislariu CI, Guan D, Murray J, Benedito VA, Frommer WB, Udvardi MK. MtSWEET11, a Nodule-Specific Sucrose Transporter of Medicago truncatula. PLANT PHYSIOLOGY 2016; 171:554-65. [PMID: 27021190 PMCID: PMC4854692 DOI: 10.1104/pp.15.01910] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 03/21/2016] [Indexed: 05/18/2023]
Abstract
Optimization of nitrogen fixation by rhizobia in legumes is a key area of research for sustainable agriculture. Symbiotic nitrogen fixation (SNF) occurs in specialized organs called nodules and depends on a steady supply of carbon to both plant and bacterial cells. Here we report the functional characterization of a nodule-specific Suc transporter, MtSWEET11 from Medicago truncatula MtSWEET11 belongs to a clade of plant SWEET proteins that are capable of transporting Suc and play critical roles in pathogen susceptibility. When expressed in mammalian cells, MtSWEET11 transported sucrose (Suc) but not glucose (Glc). The MtSWEET11 gene was found to be expressed in infected root hair cells, and in the meristem, invasion zone, and vasculature of nodules. Expression of an MtSWEET11-GFP fusion protein in nodules resulted in green fluorescence associated with the plasma membrane of uninfected cells and infection thread and symbiosome membranes of infected cells. Two independent Tnt1-insertion sweet11 mutants were uncompromised in SNF Therefore, although MtSWEET11 appears to be involved in Suc distribution within nodules, it is not crucial for SNF, probably because other Suc transporters can fulfill its role(s).
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Affiliation(s)
- Igor S Kryvoruchko
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Senjuti Sinharoy
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Ivone Torres-Jerez
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Davide Sosso
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Catalina I Pislariu
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Dian Guan
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Jeremy Murray
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Vagner A Benedito
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Wolf B Frommer
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
| | - Michael K Udvardi
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK (I.S.K., S.S., I.T.-J., C.I.P., M.K.U.); Department of Plant Biology, Carnegie Institution of Science, Stanford, CA 94305 (D.S., W.B.F.); Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, United Kingdom (D.G., J.M.); and Division of Plant & Soil Sciences, West Virginia University, Morgantown, WV 26506 (V.A.B.)
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Dahro B, Wang F, Peng T, Liu JH. PtrA/NINV, an alkaline/neutral invertase gene of Poncirus trifoliata, confers enhanced tolerance to multiple abiotic stresses by modulating ROS levels and maintaining photosynthetic efficiency. BMC PLANT BIOLOGY 2016. [PMID: 27025596 DOI: 10.1016/j.envexpbot.2018.12.009] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
BACKGROUND Alkaline/neutral invertase (A/N-INV), an enzyme that hydrolyzes sucrose irreversibly into glucose and fructose, is essential for normal plant growth,development, and stress tolerance. However, the physiological and/or molecular mechanism underpinning the role of A/N-INV in abiotic stress tolerance is poorly understood. RESULTS In this report, an A/N-INV gene (PtrA/NINV) was isolated from Poncirus trifoliata, a cold-hardy relative of citrus, and functionally characterized. PtrA/NINV expression levels were induced by cold, salt, dehydration, sucrose, and ABA, but decreased by glucose. PtrA/NINV was found to localize in both chloroplasts and mitochondria. Overexpression of PtrA/NINV conferred enhanced tolerance to multiple stresses, including cold, high salinity, and drought, as supported by lower levels of reactive oxygen species (ROS), reduced oxidative damages, decreased water loss rate, and increased photosynthesis efficiency, relative to wild-type (WT). The transgenic plants exhibited higher A/N-INV activity and greater reducing sugar content under normal and stress conditions. CONCLUSIONS PtrA/NINV is an important gene implicated in sucrose decomposition, and plays a positive role in abiotic stress tolerance by promoting osmotic adjustment, ROS detoxification and photosynthesis efficiency. Thus, PtrA/NINV has great potential to be used in transgenic breeding for improvement of stress tolerance.
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Affiliation(s)
- Bachar Dahro
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria
| | - Fei Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ting Peng
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ji-Hong Liu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China.
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Dahro B, Wang F, Peng T, Liu JH. PtrA/NINV, an alkaline/neutral invertase gene of Poncirus trifoliata, confers enhanced tolerance to multiple abiotic stresses by modulating ROS levels and maintaining photosynthetic efficiency. BMC PLANT BIOLOGY 2016; 16:76. [PMID: 27025596 PMCID: PMC4812658 DOI: 10.1186/s12870-016-0761-0] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 03/15/2016] [Indexed: 05/09/2023]
Abstract
BACKGROUND Alkaline/neutral invertase (A/N-INV), an enzyme that hydrolyzes sucrose irreversibly into glucose and fructose, is essential for normal plant growth,development, and stress tolerance. However, the physiological and/or molecular mechanism underpinning the role of A/N-INV in abiotic stress tolerance is poorly understood. RESULTS In this report, an A/N-INV gene (PtrA/NINV) was isolated from Poncirus trifoliata, a cold-hardy relative of citrus, and functionally characterized. PtrA/NINV expression levels were induced by cold, salt, dehydration, sucrose, and ABA, but decreased by glucose. PtrA/NINV was found to localize in both chloroplasts and mitochondria. Overexpression of PtrA/NINV conferred enhanced tolerance to multiple stresses, including cold, high salinity, and drought, as supported by lower levels of reactive oxygen species (ROS), reduced oxidative damages, decreased water loss rate, and increased photosynthesis efficiency, relative to wild-type (WT). The transgenic plants exhibited higher A/N-INV activity and greater reducing sugar content under normal and stress conditions. CONCLUSIONS PtrA/NINV is an important gene implicated in sucrose decomposition, and plays a positive role in abiotic stress tolerance by promoting osmotic adjustment, ROS detoxification and photosynthesis efficiency. Thus, PtrA/NINV has great potential to be used in transgenic breeding for improvement of stress tolerance.
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Affiliation(s)
- Bachar Dahro
- />Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
- />Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria
| | - Fei Wang
- />Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Ting Peng
- />Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
| | - Ji-Hong Liu
- />Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 China
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Meng LS, Li YQ, Liu MQ, Jiang JH. The Arabidopsis ANGUSTIFOLIA3- YODA Gene Cascade Induces Anthocyanin Accumulation by Regulating Sucrose Levels. FRONTIERS IN PLANT SCIENCE 2016; 7:1728. [PMID: 27920784 PMCID: PMC5118565 DOI: 10.3389/fpls.2016.01728] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 11/02/2016] [Indexed: 05/09/2023]
Abstract
Anthocyanin accumulation specifically depends on sucrose (Suc) signaling/levels. However, the gene cascades specifically involved in the Suc signaling/level-mediated anthocyanin biosynthetic pathway are still unknown. Arabidopsis ANGUSTIFOLIA3 (AN3), a transcription coactivator, is involved in the regulation of leaf shape and drought tolerance. Recently, an AN3-CONSTITUTIVE PHOTOMORPHOGENIC 1 gene cascade has been reported to regulate the light signaling-mediated anthocyanin accumulation. Target gene analysis indicates that AN3 is associated with the YODA (YDA) promoter, a mitogen-activated protein kinase kinase kinase, in vivo for inducing anthocyanin accumulation. Indeed, loss-of-function mutants of YDA showed significantly increased anthocyanin accumulation. YDA mutation can also suppress the decrease in an3-4 anthocyanin accumulation. Further analysis indicates that the mutations of AN3 and YDA disrupt the normal Suc levels because of the changes of invertase activity in mutants of an3 or yda, which in turn induces the alterations of anthocyanin accumulation in mutants of an3 or yda via unknown regulatory mechanisms.
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Affiliation(s)
- Lai-Sheng Meng
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal UniversityXuzhou, China
- Centre for Transformational Biotechnology of Medicinal and Food Plants, Jiangsu Normal University – Edinburgh UniversityXuzhou, China
- *Correspondence: Lai-Sheng Meng, Ji-Hong, Jiang
| | - Ying-Qiu Li
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal UniversityXuzhou, China
- Centre for Transformational Biotechnology of Medicinal and Food Plants, Jiangsu Normal University – Edinburgh UniversityXuzhou, China
| | - Meng-Qian Liu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal UniversityXuzhou, China
- Centre for Transformational Biotechnology of Medicinal and Food Plants, Jiangsu Normal University – Edinburgh UniversityXuzhou, China
| | - Ji-Hong Jiang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal UniversityXuzhou, China
- Centre for Transformational Biotechnology of Medicinal and Food Plants, Jiangsu Normal University – Edinburgh UniversityXuzhou, China
- *Correspondence: Lai-Sheng Meng, Ji-Hong, Jiang
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Veillet F, Gaillard C, Coutos-Thévenot P, La Camera S. Targeting the AtCWIN1 Gene to Explore the Role of Invertases in Sucrose Transport in Roots and during Botrytis cinerea Infection. FRONTIERS IN PLANT SCIENCE 2016; 7:1899. [PMID: 28066461 PMCID: PMC5167757 DOI: 10.3389/fpls.2016.01899] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 11/30/2016] [Indexed: 05/15/2023]
Abstract
Cell wall invertases (CWIN) cleave sucrose into glucose and fructose in the apoplast. CWINs are key regulators of carbon partitioning and source/sink relationships during growth, development and under biotic stresses. In this report, we monitored the expression/activity of Arabidopsis cell wall invertases in organs behaving as source, sink, or subjected to a source/sink transition after infection with the necrotrophic fungus Botrytis cinerea. We showed that organs with different source/sink status displayed differential CWIN activities, depending on carbohydrate needs or availabilities in the surrounding environment, through a transcriptional and posttranslational regulation. Loss-of-function mutation of the Arabidopsis cell wall invertase 1 gene, AtCWIN1, showed that the corresponding protein was the main contributor to the apoplastic sucrose cleaving activity in both leaves and roots. The CWIN-deficient mutant cwin1-1 exhibited a reduced capacity to actively take up external sucrose in roots, indicating that this process is mainly dependent on the sucrolytic activity of AtCWIN1. Using T-DNA and CRISPR/Cas9 mutants impaired in hexose transport, we demonstrated that external sucrose is actively absorbed in the form of hexoses by a sugar/H+ symport system involving the coordinated activity of AtCWIN1 with several Sugar Transporter Proteins (STP) of the plasma membrane, i.e., STP1 and STP13. Part of external sucrose was imported without apoplastic cleavage into cwin1-1 seedling roots, highlighting an alternative AtCWIN1-independent pathway for the assimilation of external sucrose. Accordingly, we showed that several genes encoding sucrose transporters of the plasma membrane were expressed. We also detected transcript accumulation of vacuolar invertase (VIN)-encoding genes and high VIN activities. Upon infection, AtCWIN1 was responsible for all the Botrytis-induced apoplastic invertase activity. We detected a transcriptional activation of several AtSUC and AtVIN genes accompanied with an enhanced vacuolar invertase activity, suggesting that the AtCWIN1-independent pathway is efficient upon infection. In absence of AtCWIN1, we postulate that intracellular sucrose hydrolysis is sufficient to provide intracellular hexoses to maintain sugar homeostasis in host cells and to fuel plant defenses. Finally, we demonstrated that Botrytis cinerea possesses its own functional sucrolytic machinery and hexose uptake system, and does not rely on the host apoplastic invertases.
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Su T, Wolf S, Han M, Zhao H, Wei H, Greiner S, Rausch T. Reassessment of an Arabidopsis cell wall invertase inhibitor AtCIF1 reveals its role in seed germination and early seedling growth. PLANT MOLECULAR BIOLOGY 2016; 90:137-55. [PMID: 26546341 DOI: 10.1007/s11103-015-0402-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 10/30/2015] [Indexed: 05/19/2023]
Abstract
In higher plants, cell wall invertase (CWI) and vacuolar invertase (VI) are recognized as essential players in sugar metabolism and sugar signaling, thereby affecting source-sink interactions, plant development and responses to environmental cues. CWI and VI expression levels are transcriptionally controlled; however, both enzymes are also subject to posttranslational control by invertase inhibitor proteins. The physiological significances of inhibitor proteins during seed germination and early seedling development are not yet fully understood. Here, we demonstrate that the inhibitor isoform AtCIF1 impacted on seed germination and early seedling growth in Arabidopsis. The primary target of AtCIF1 was shown to be localized to the apoplast after expressing an AtCIF1 YFP-fusion construct in tobacco epidermis and transgenic Arabidopsis root. The analysis of expression patterns showed that AtCWI1 was co-expressed spatiotemporally with AtCIF1 within the early germinating seeds. Seed germination was observed to be accelerated independently of exogenous abscisic acid (ABA) in the AtCIF1 loss-of-function mutant cif1-1. This effect coincided with a drastic increase of CWI activity in cif1-1 mutant seeds by 24 h after the onset of germination, both in vitro and in planta. Accordingly, quantification of sugar content showed that hexose levels were significantly boosted in germinating seeds of the cif1-1 mutant. Further investigation of AtCIF1 overexpressors in Arabidopsis revealed a markedly suppressed CWI activity as well as delayed seed germination. Thus, we conclude that the posttranslational modulation of CWI activity by AtCIF1 helps to orchestrate seed germination and early seedling growth via fine-tuning sucrose hydrolysis and, possibly, sugar signaling.
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Affiliation(s)
- Tao Su
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada.
| | - Sebastian Wolf
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
| | - Mei Han
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada.
| | - Hongbo Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Hongbin Wei
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
| | - Steffen Greiner
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
| | - Thomas Rausch
- Plant Molecular Physiology, Centre for Organismal Studies (COS), Heidelberg University, Im Neuenheimer Feld 360, Heidelberg, 69120, Germany.
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Samac DA, Bucciarelli B, Miller SS, Yang SS, O'Rourke JA, Shin S, Vance CP. Transgene silencing of sucrose synthase in alfalfa (Medicago sativa L.) stem vascular tissue suggests a role for invertase in cell wall cellulose synthesis. BMC PLANT BIOLOGY 2015; 15:283. [PMID: 26627884 PMCID: PMC4666122 DOI: 10.1186/s12870-015-0649-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 10/20/2015] [Indexed: 05/11/2023]
Abstract
BACKGROUND Alfalfa (Medicago sativa L.) is a widely adapted perennial forage crop that has high biomass production potential. Enhanced cellulose content in alfalfa stems would increase the value of the crop as a bioenergy feedstock. We examined if increased expression of sucrose synthase (SUS; EC 2.4.1.13) would increase cellulose in stem cell walls. RESULTS Alfalfa plants were transformed with a truncated alfalfa phosphoenolpyruvate carboxylase gene promoter (PEPC7-P4) fused to an alfalfa nodule-enhanced SUS cDNA (MsSUS1) or the β-glucuronidase (GUS) gene. Strong GUS expression was detected in xylem and phloem indicating that the PEPC7-P4 promoter was active in stem vascular tissue. In contrast to expectations, MsSUS1 transcript accumulation was reduced 75-90 % in alfalfa plants containing the PEPC7-P4::MsSUS1 transgene compared to controls. Enzyme assays indicated that SUS activity in stems of selected down-regulated transformants was reduced by greater than 95 % compared to the controls. Although SUS activity was detected in xylem and phloem of control plants by in situ enzyme assays, plants with the PEPC7-P4::MsSUS1 transgene lacked detectable SUS activity in post-elongation stem (PES) internodes and had very low SUS activity in elongating stem (ES) internodes. Loss of SUS protein in PES internodes of down-regulated lines was confirmed by immunoblots. Down-regulation of SUS expression and activity in stem tissue resulted in no obvious phenotype or significant change in cell wall sugar composition. However, alkaline/neutral (A/N) invertase activity increased in SUS down-regulated lines and high levels of acid invertase activity were observed. In situ enzyme assays of stem tissue showed localization of neutral invertase in vascular tissues of ES and PES internodes. CONCLUSIONS These results suggest that invertases play a primary role in providing glucose for cellulose biosynthesis or compensate for the loss of SUS1 activity in stem vascular tissue.
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Affiliation(s)
- Deborah A Samac
- USDA-ARS-Plant Science Research Unit, St. Paul, MN, 55108, USA.
- Department of Plant Pathology, University of Minnesota, St. Paul, MN, 55108, USA.
| | | | - Susan S Miller
- Department of Plant Pathology, University of Minnesota, St. Paul, MN, 55108, USA.
| | - S Samuel Yang
- USDA-ARS-Plant Science Research Unit, St. Paul, MN, 55108, USA.
- Present address: Monsanto Company, Chesterfield, MO, 63017, USA.
| | - Jamie A O'Rourke
- USDA-ARS-Plant Science Research Unit, St. Paul, MN, 55108, USA.
- Present address: USDA-ARS-Corn Insects and Crop Genetics Research Unit, Ames, IA, 50011, USA.
| | - Sanghyun Shin
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN, 55108, USA.
- Present address: National Institute of Crop Science, Iksan, 570-080, Korea.
| | - Carroll P Vance
- USDA-ARS-Plant Science Research Unit, St. Paul, MN, 55108, USA.
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN, 55108, USA.
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Siddappaji MH, Scholes DR, Krishnankutty SM, Calla B, Clough SJ, Zielinski RE, Paige KN. The role of invertases in plant compensatory responses to simulated herbivory. BMC PLANT BIOLOGY 2015; 15:278. [PMID: 26572986 PMCID: PMC4647499 DOI: 10.1186/s12870-015-0655-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 10/23/2015] [Indexed: 05/23/2023]
Abstract
BACKGROUND The ability of a plant to overcome animal-induced damage is referred to as compensation or tolerance and ranges from undercompensation (decreased fitness when damaged) to overcompensation (increased fitness when damaged). Although it is clear that genetic variation for compensation exists among plants, little is known about the specific genetic underpinnings leading to enhanced fitness. Our previous study identified the enzyme GLUCOSE-6-PHOSPHATE DEHYDROGENASE 1 (G6PD1) as a key regulator contributing to the phenomenon of overcompensation via its role in the oxidative pentose phosphate pathway (OPPP). Apart from G6PD1 we also identified an invertase gene which was up-regulated following damage and that potentially integrates with the OPPP. The invertase family of enzymes hydrolyze sucrose to glucose and fructose, whereby the glucose produced is shunted into the OPPP and presumably supports plant regrowth, development, and ultimately compensation. In the current study, we measured the relative expression of 12 invertase genes over the course of plant development in the Arabidopsis thaliana genotypes Columbia-4 and Landsberg erecta, which typically overcompensate and undercompensate, respectively, when damaged. We also compared the compensatory performances of a set of invertase knockout mutants to the Columbia-4 wild type. RESULTS We report that Columbia-4 significantly up-regulated 9 of 12 invertase genes when damaged relative to when undamaged, and ultimately overcompensated for fruit production. Landsberg erecta, in contrast, down-regulated two invertase genes following damage and suffered reduced fitness. Knockout mutants of two invertase genes both exhibited significant undercompensation for fruit production, exhibiting a complete reversal of the wild type Col-4's overcompensation. CONCLUSION Collectively, these results confirm that invertases are essential for not only normal plant growth and development, but also plants' abilities to regrow and ultimately compensate for fitness following apical damage.
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Affiliation(s)
| | - Daniel R Scholes
- Department of Animal Biology, University of Illinois, Urbana, IL, 61801, USA.
- Department of Biology, University of Indianapolis, Indianapolis, IN, 46227, USA.
| | | | - Bernarda Calla
- USDA-Agricultural Research Service Pacific Basin, Agricultural Research Center, Hilo, HI, 96720, USA.
| | - Steven J Clough
- USDA-Agricultural Research Service and the Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA.
| | - Raymond E Zielinski
- Department of Plant Biology, University of Illinois, Urbana, IL, 61801, USA.
| | - Ken N Paige
- Department of Animal Biology, University of Illinois, Urbana, IL, 61801, USA.
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Chen Z, Gao K, Su X, Rao P, An X. Genome-Wide Identification of the Invertase Gene Family in Populus. PLoS One 2015; 10:e0138540. [PMID: 26393355 PMCID: PMC4579127 DOI: 10.1371/journal.pone.0138540] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 08/31/2015] [Indexed: 11/18/2022] Open
Abstract
Invertase plays a crucial role in carbohydrate partitioning and plant development as it catalyses the irreversible hydrolysis of sucrose into glucose and fructose. The invertase family in plants is composed of two sub-families: acid invertases, which are targeted to the cell wall and vacuole; and neutral/alkaline invertases, which function in the cytosol. In this study, 5 cell wall invertase genes (PtCWINV1-5), 3 vacuolar invertase genes (PtVINV1-3) and 16 neutral/alkaline invertase genes (PtNINV1-16) were identified in the Populus genome and found to be distributed on 14 chromosomes. A comprehensive analysis of poplar invertase genes was performed, including structures, chromosome location, phylogeny, evolutionary pattern and expression profiles. Phylogenetic analysis indicated that the two sub-families were both divided into two clades. Segmental duplication is contributed to neutral/alkaline sub-family expansion. Furthermore, the Populus invertase genes displayed differential expression in roots, stems, leaves, leaf buds and in response to salt/cold stress and pathogen infection. In addition, the analysis of enzyme activity and sugar content revealed that invertase genes play key roles in the sucrose metabolism of various tissues and organs in poplar. This work lays the foundation for future functional analysis of the invertase genes in Populus and other woody perennials.
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Affiliation(s)
- Zhong Chen
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Kai Gao
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Xiaoxing Su
- Beijing Berry Genomics Company Limited, Beijing, China
| | - Pian Rao
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Xinmin An
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
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Liu S, Lan J, Zhou B, Qin Y, Zhou Y, Xiao X, Yang J, Gou J, Qi J, Huang Y, Tang C. HbNIN2, a cytosolic alkaline/neutral-invertase, is responsible for sucrose catabolism in rubber-producing laticifers of Hevea brasiliensis (para rubber tree). THE NEW PHYTOLOGIST 2015; 206:709-25. [PMID: 25581169 DOI: 10.1111/nph.13257] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 11/29/2014] [Indexed: 05/21/2023]
Abstract
In Hevea brasiliensis, an alkaline/neutral invertase (A/N-Inv) is responsible for sucrose catabolism in latex (essentially the cytoplasm of rubber-producing laticifers, the source of natural rubber) and implicated in rubber yield. However, neither the gene encoding this enzyme nor its molecular and biochemical properties have been well documented. Three Hevea A/N-Inv genes, namely HbNIN1, 2 and 3, were first cloned and characterized in planta and in Escherichia coli. Cellular localizations of HbNIN2 mRNA and protein were probed. From latex, active A/N-Inv proteins were purified, identified, and explored for enzymatic properties. HbNIN2 was identified as the major A/N-Inv gene functioning in latex based on its functionality in E. coli, its latex-predominant expression, the conspicuous localization of its mRNA and protein in the laticifers, and its expressional correlation with rubber yield. An active A/N-Inv protein was partially purified from latex, and determined as HbNIN2. The enhancement of HbNIN2 enzymatic activity by pyridoxal is peculiar to A/N-Invs in other plants. We conclude that HbNIN2, a cytosolic A/N-Inv, is responsible for sucrose catabolism in rubber laticifers. The results contribute to the studies of sucrose catabolism in plants as a whole and natural rubber synthesis in particular.
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Affiliation(s)
- Shujin Liu
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737, Hainan, China; College of Agronomy, Hainan University, Haikou, 570228, Hainan, China
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Dong Y, Duan W, He H, Su P, Zhang M, Song G, Fu C, Yu L. Enhancing taxane biosynthesis in cell suspension culture of Taxus chinensis by overexpressing the neutral/alkaline invertase gene. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Rabot A, Portemer V, Péron T, Mortreau E, Leduc N, Hamama L, Coutos-Thévenot P, Atanassova R, Sakr S, Le Gourrierec J. Interplay of sugar, light and gibberellins in expression of Rosa hybrida vacuolar invertase 1 regulation. PLANT & CELL PHYSIOLOGY 2014; 55:1734-48. [PMID: 25108242 DOI: 10.1093/pcp/pcu106] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Our previous findings showed that the expression of the Rosa hybrida vacuolar invertase 1 gene (RhVI1) was tightly correlated with the ability of buds to grow out and was under sugar, gibberellin and light control. Here, we aimed to provide an insight into the mechanistic basis of this regulation. In situ hybridization showed that RhVI1 expression was localized in epidermal cells of young leaves of bursting buds. We then isolated a 895 bp fragment of the promoter of RhVI1. In silico analysis identified putative cis-elements involved in the response to sugars, light and gibberellins on its proximal part (595 bp). To carry out functional analysis of the RhVI1 promoter in a homologous system, we developed a direct method for stable transformation of rose cells. 5' deletions of the proximal promoter fused to the uidA reporter gene were inserted into the rose cell genome to study the cell's response to exogenous and endogenous stimuli. Deletion analysis revealed that the 468 bp promoter fragment is sufficient to trigger reporter gene activity in response to light, sugars and gibberellins. This region confers sucrose- and fructose-, but not glucose-, responsive activation in the dark. Inversely, the -595 to -468 bp region that carries the sugar-repressive element (SRE) is required to down-regulate the RhVI1 promoter in response to sucrose and fructose in the dark. We also demonstrate that sugar/light and gibberellin/light act synergistically to up-regulate β-glucuronidase (GUS) activity sharply under the control of the 595 bp pRhVI1 region. These results reveal that the 127 bp promoter fragment located between -595 and -468 bp is critical for light and sugar and light and gibberellins to act synergistically.
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Affiliation(s)
- Amélie Rabot
- Agrocampus-Ouest, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49045 Angers, France These authors contributed equally to this work
| | - Virginie Portemer
- Université de Poitiers, UMR 7267 CNRS/Université de Poitiers Écologie et Biologie des Interactions, équipe Physiologie Moléculaire du Transport des Sucres chez les végétaux, 3 rue Jacques Fort, B31, 86 000 Poitiers, France These authors contributed equally to this work. Present address: INRA, Institut Jean Pierre Bourgin, UMR 1318, F-78026 Versailles, France
| | - Thomas Péron
- Agrocampus-Ouest, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49045 Angers, France
| | - Eric Mortreau
- Agrocampus-Ouest, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49045 Angers, France
| | - Nathalie Leduc
- Université d'Angers, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49045 Angers, France
| | - Latifa Hamama
- Agrocampus-Ouest, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49045 Angers, France Université d'Angers, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49045 Angers, France INRA, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49071 Beaucouzé, France
| | - Pierre Coutos-Thévenot
- Université de Poitiers, UMR 7267 CNRS/Université de Poitiers Écologie et Biologie des Interactions, équipe Physiologie Moléculaire du Transport des Sucres chez les végétaux, 3 rue Jacques Fort, B31, 86 000 Poitiers, France
| | - Rossitza Atanassova
- Université de Poitiers, UMR 7267 CNRS/Université de Poitiers Écologie et Biologie des Interactions, équipe Physiologie Moléculaire du Transport des Sucres chez les végétaux, 3 rue Jacques Fort, B31, 86 000 Poitiers, France
| | - Soulaiman Sakr
- Agrocampus-Ouest, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49045 Angers, France
| | - José Le Gourrierec
- Université d'Angers, Institut de Recherche en Horticulture et Semences (INRA, Agrocampus-Ouest, Université d'Angers), SFR 149 QUASAV, F-49045 Angers, France
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Larrainzar E, Gil-Quintana E, Seminario A, Arrese-Igor C, González EM. Nodule carbohydrate catabolism is enhanced in the Medicago truncatula A17-Sinorhizobium medicae WSM419 symbiosis. Front Microbiol 2014; 5:447. [PMID: 25221545 PMCID: PMC4145349 DOI: 10.3389/fmicb.2014.00447] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 08/05/2014] [Indexed: 12/22/2022] Open
Abstract
The symbiotic association between Medicago truncatula and Sinorhizobium meliloti is a well-established model system in the legume–Rhizobium community. Despite its wide use, the symbiotic efficiency of this model has been recently questioned and an alternative microsymbiont, S. medicae, has been proposed. However, little is known about the physiological mechanisms behind the higher symbiotic efficiency of S. medicae WSM419. In the present study, we inoculated M. truncatula Jemalong A17 with either S. medicae WSM419 or S. meliloti 2011 and compared plant growth, photosynthesis, N2-fixation rates, and plant nodule carbon and nitrogen metabolic activities in the two systems. M. truncatula plants in symbiosis with S. medicae showed increased biomass and photosynthesis rates per plant. Plants grown in symbiosis with S. medicae WSM419 also showed higher N2-fixation rates, which were correlated with a larger nodule biomass, while nodule number was similar in both systems. In terms of plant nodule metabolism, M. truncatula–S. medicae WSM419 nodules showed increased sucrose-catabolic activity, mostly associated with sucrose synthase, accompanied by a reduced starch content, whereas nitrogen-assimilation activities were comparable to those measured in nodules infected with S. meliloti 2011. Taken together, these results suggest that S. medicae WSM419 is able to enhance plant carbon catabolism in M. truncatula nodules, which allows for the maintaining of high symbiotic N2-fixation rates, better growth and improved general plant performance.
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Affiliation(s)
- Estíbaliz Larrainzar
- Departamento de Ciencias del Medio Natural/Environmental Sciences, Universidad Pública de Navarra Pamplona, Spain
| | - Erena Gil-Quintana
- Departamento de Ciencias del Medio Natural/Environmental Sciences, Universidad Pública de Navarra Pamplona, Spain
| | - Amaia Seminario
- Departamento de Ciencias del Medio Natural/Environmental Sciences, Universidad Pública de Navarra Pamplona, Spain
| | - Cesar Arrese-Igor
- Departamento de Ciencias del Medio Natural/Environmental Sciences, Universidad Pública de Navarra Pamplona, Spain
| | - Esther M González
- Departamento de Ciencias del Medio Natural/Environmental Sciences, Universidad Pública de Navarra Pamplona, Spain
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Tauzin AS, Giardina T. Sucrose and invertases, a part of the plant defense response to the biotic stresses. FRONTIERS IN PLANT SCIENCE 2014; 5:293. [PMID: 25002866 PMCID: PMC4066202 DOI: 10.3389/fpls.2014.00293] [Citation(s) in RCA: 172] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 06/04/2014] [Indexed: 05/18/2023]
Abstract
Sucrose is the main form of assimilated carbon which is produced during photosynthesis and then transported from source to sink tissues via the phloem. This disaccharide is known to have important roles as signaling molecule and it is involved in many metabolic processes in plants. Essential for plant growth and development, sucrose is engaged in plant defense by activating plant immune responses against pathogens. During infection, pathogens reallocate the plant sugars for their own needs forcing the plants to modify their sugar content and triggering their defense responses. Among enzymes that hydrolyze sucrose and alter carbohydrate partitioning, invertases have been reported to be affected during plant-pathogen interactions. Recent highlights on the role of invertases in the establishment of plant defense responses suggest a more complex regulation of sugar signaling in plant-pathogen interaction.
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Affiliation(s)
| | - Thierry Giardina
- *Correspondence: Thierry Giardina, CNRS, Centrale Marseille, iSm2 UMR 7313, Aix Marseille Université, Avenue Escadrille Normandie-Niemen, 13397 Marseille, France e-mail:
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Ruan YL. Sucrose metabolism: gateway to diverse carbon use and sugar signaling. ANNUAL REVIEW OF PLANT BIOLOGY 2014; 65:33-67. [PMID: 24579990 DOI: 10.1146/annurev-arplant-050213-040251] [Citation(s) in RCA: 685] [Impact Index Per Article: 68.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Sucrose metabolism plays pivotal roles in development, stress response, and yield formation, mainly by generating a range of sugars as metabolites to fuel growth and synthesize essential compounds (including protein, cellulose, and starch) and as signals to regulate expression of microRNAs, transcription factors, and other genes and for crosstalk with hormonal, oxidative, and defense signaling. This review aims to capture the most exciting developments in this area by evaluating (a) the roles of key sucrose metabolic enzymes in development, abiotic stress responses, and plant-microbe interactions; (b) the coupling between sucrose metabolism and sugar signaling from extra- to intracellular spaces; (c) the different mechanisms by which sucrose metabolic enzymes could perform their signaling roles; and (d) progress on engineering sugar metabolism and transport for high yield and disease resistance. Finally, the review outlines future directions for research on sugar metabolism and signaling to better understand and improve plant performance.
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Affiliation(s)
- Yong-Ling Ruan
- School of Environment and Life Sciences and Australia-China Research Centre for Crop Improvement, University of Newcastle, Callaghan 2308, Australia;
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