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Han R, Wei Y, Xie Y, Liu L, Jiang C, Yu Y. Quantitative phosphoproteomic analysis provides insights into the aluminum-responsiveness of Tamba black soybean. PLoS One 2020; 15:e0237845. [PMID: 32813721 PMCID: PMC7437914 DOI: 10.1371/journal.pone.0237845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 08/04/2020] [Indexed: 01/01/2023] Open
Abstract
Aluminum (Al3+) toxicity is one of the most important limitations to agricultural production worldwide. The overall response of plants to Al3+ stress has been documented, but the contribution of protein phosphorylation to Al3+ detoxicity and tolerance in plants is unclear. Using a combination of tandem mass tag (TMT) labeling, immobilized metal affinity chromatography (IMAC) enrichment and liquid chromatography-tandem mass spectrometry (LC-MS/MS), Al3+-induced phosphoproteomic changes in roots of Tamba black soybean (TBS) were investigated in this study. The Data collected in this study are available via ProteomeXchange with the identifier PXD019807. After the Al3+ treatment, 189 proteins harboring 278 phosphosites were significantly changed (fold change > 1.2 or < 0.83, p < 0.05), with 88 upregulated, 96 downregulated and 5 up-/downregulated. Enrichment and protein interaction analyses revealed that differentially phosphorylated proteins (DPPs) under the Al3+ treatment were mainly related to G-protein-mediated signaling, transcription and translation, transporters and carbohydrate metabolism. Particularly, DPPs associated with root growth inhibition or citric acid synthesis were identified. The results of this study provide novel insights into the molecular mechanisms of TBS post-translational modifications in response to Al3+ stress.
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Affiliation(s)
- Rongrong Han
- College of Animal Science and Technology, Southwest University, Beibei, Chongqing, China
| | - Yunmin Wei
- College of Animal Science and Technology, Southwest University, Beibei, Chongqing, China
| | - Yonghong Xie
- College of Animal Science and Technology, Southwest University, Beibei, Chongqing, China
| | - Lusheng Liu
- College of Animal Science and Technology, Southwest University, Beibei, Chongqing, China
| | - Caode Jiang
- College of Animal Science and Technology, Southwest University, Beibei, Chongqing, China
| | - Yongxiong Yu
- College of Animal Science and Technology, Southwest University, Beibei, Chongqing, China
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52
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Li CX, Yan JY, Ren JY, Sun L, Xu C, Li GX, Ding ZJ, Zheng SJ. A WRKY transcription factor confers aluminum tolerance via regulation of cell wall modifying genes. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:1176-1192. [PMID: 31729146 DOI: 10.1111/jipb.12888] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 11/14/2019] [Indexed: 05/06/2023]
Abstract
Modification of cell wall properties has been considered as one of the determinants that confer aluminum (Al) tolerance in plants, while how cell wall modifying processes are regulated remains elusive. Here, we present a WRKY transcription factor WRKY47 involved in Al tolerance and root growth. Lack of WRKY47 significantly reduces, while overexpression of it increases Al tolerance. We show that lack of WRKY47 substantially affects subcellular Al distribution in the root, with Al content decreased in apoplast and increased in symplast, which is attributed to the reduced cell wall Al-binding capacity conferred by the decreased content of hemicellulose I in the wrky47-1 mutant. Based on microarray, real time-quantitative polymerase chain reaction and chromatin immunoprecipitation assays, we further show that WRKY47 directly regulates the expression of EXTENSIN-LIKE PROTEIN (ELP) and XYLOGLUCAN ENDOTRANSGLUCOSYLASE-HYDROLASES17 (XTH17) responsible for cell wall modification. Increasing the expression of ELP and XTH17 rescued Al tolerance as well as root growth in wrky47-1 mutant. In summary, our results demonstrate that WRKY47 is required for root growth under both normal and Al stress conditions via direct regulation of cell wall modification genes, and that the balance of Al distribution between root apoplast and symplast conferred by WRKY47 is important for Al tolerance.
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Affiliation(s)
- Chun Xiao Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jing Ying Yan
- Agricultural Experiment Station, Zhejiang University, Hangzhou, 310058, China
| | - Jiang Yuan Ren
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Li Sun
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chen Xu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Gui Xin Li
- College of Agronomy and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Zhong Jie Ding
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Shao Jian Zheng
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
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53
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Sun L, Zhang M, Liu X, Mao Q, Shi C, Kochian LV, Liao H. Aluminium is essential for root growth and development of tea plants (Camellia sinensis). JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:984-997. [PMID: 32320136 PMCID: PMC7383589 DOI: 10.1111/jipb.12942] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 04/14/2020] [Indexed: 05/09/2023]
Abstract
On acid soils, the trivalent aluminium ion (Al3+ ) predominates and is very rhizotoxic to most plant species. For some native plant species adapted to acid soils including tea (Camellia sinensis), Al3+ has been regarded as a beneficial mineral element. In this study, we discovered that Al3+ is actually essential for tea root growth and development in all the tested varieties. Aluminum ion promoted new root growth in five representative tea varieties with dose-dependent responses to Al3+ availability. In the absence of Al3+ , the tea plants failed to generate new roots, and the root tips were damaged within 1 d of Al deprivation. Structural analysis of root tips demonstrated that Al was required for root meristem development and activity. In situ morin staining of Al3+ in roots revealed that Al mainly localized to nuclei in root meristem cells, but then gradually moved to the cytosol when Al3+ was subsequently withdrawn. This movement of Al3+ from nuclei to cytosols was accompanied by exacerbated DNA damage, which suggests that the nuclear-targeted Al primarily acts to maintain DNA integrity. Taken together, these results provide novel evidence that Al3+ is essential for root growth in tea plants through maintenance of DNA integrity in meristematic cells.
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Affiliation(s)
- Lili Sun
- Root Biology Center, College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou350002China
| | - Mengshi Zhang
- Root Biology Center, College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou350002China
| | - Xiaomei Liu
- Root Biology Center, College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou350002China
| | - Qianzhuo Mao
- Vector‐Borne Virus Research CenterFujian Agriculture and Forestry UniversityFuzhou350002China
| | - Chen Shi
- Root Biology Center, College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou350002China
| | - Leon V. Kochian
- Global Institute for Food SecurityUniversity of SaskatchewanSaskatoonS7N 4J8Canada
| | - Hong Liao
- Root Biology Center, College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou350002China
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54
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Wei Y, Jiang C, Han R, Xie Y, Liu L, Yu Y. Plasma membrane proteomic analysis by TMT-PRM provides insight into mechanisms of aluminum resistance in tamba black soybean roots tips. PeerJ 2020; 8:e9312. [PMID: 32566407 PMCID: PMC7293186 DOI: 10.7717/peerj.9312] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 05/17/2020] [Indexed: 11/20/2022] Open
Abstract
Aluminum (Al) toxicity in acid soil is a worldwide agricultural problem that inhibits crop growth and productivity. However, the signal pathways associated with Al tolerance in plants remain largely unclear. In this study, tandem mass tag (TMT)-based quantitative proteomic methods were used to identify the differentially expressed plasma membrane (PM) proteins in Tamba black soybean (TBS) root tips under Al stress. Data are available via ProteomeXchange with identifier PXD017160. In addition, parallel reaction monitoring (PRM) was used to verify the protein quantitative data. The results showed that 907 PM proteins were identified in Al-treated plants. Among them, compared to untreated plants, 90 proteins were differentially expressed (DEPs) with 46 up-regulated and 44 down-regulated (fold change > 1.3 or < 0.77, p < 0.05). Functional enrichment based on GO, KEGG and protein domain revealed that the DEPs were associated with membrane trafficking and transporters, modifying cell wall composition, defense response and signal transduction. In conclusion, our results highlight the involvement of GmMATE13, GmMATE75, GmMATE87 and H+-ATPase in Al-induced citrate secretion in PM of TBS roots, and ABC transporters and Ca2+ have been implicated in internal detoxification and signaling of Al, respectively. Importantly, our data provides six receptor-like protein kinases (RLKs) as candidate proteins for further investigating Al signal transmembrane mechanisms.
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Affiliation(s)
- Yunmin Wei
- Southwest University, College of Animal Science and Technology, Chongqing, China
| | - Caode Jiang
- Southwest University, College of Animal Science and Technology, Chongqing, China
| | - Rongrong Han
- Southwest University, College of Animal Science and Technology, Chongqing, China
| | - Yonghong Xie
- Southwest University, College of Animal Science and Technology, Chongqing, China
| | - Lusheng Liu
- Southwest University, College of Animal Science and Technology, Chongqing, China
| | - Yongxiong Yu
- Southwest University, College of Animal Science and Technology, Chongqing, China
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Liu Y, Xu J, Guo S, Yuan X, Zhao S, Tian H, Dai S, Kong X, Ding Z. AtHB7/12 Regulate Root Growth in Response to Aluminum Stress. Int J Mol Sci 2020; 21:ijms21114080. [PMID: 32517364 PMCID: PMC7312248 DOI: 10.3390/ijms21114080] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 01/19/2023] Open
Abstract
Aluminum (Al) stress is a major limiting factor for plant growth and crop production in acid soils. At present, only a few transcription factors involved in the regulation of Al resistance have been characterized. Here, we used reversed genetic approach through phenotype analysis of overexpressors and mutants to demonstrate that AtHB7 and AtHB12, two HD-Zip I transcription factors, participate in Al resistance. In response to Al stress, AtHB7 and AtHB12 displayed different dynamic expression patterns. Although both AtHB7 and AtHB12 positively regulate root growth in the absence of Al stress, our results showed that AtHB7 antagonizes with AtHB12 to control root growth in response to Al stress. The athb7/12 double mutant displayed a wild-type phenotype under Al stress. Consistently, our physiological analysis showed that AtHB7 and AtHB12 oppositely regulate the capacity of cell wall to bind Al. Yeast two hybrid assays showed that AtHB7 and AtHB12 could form homo-dimers and hetero-dimers in vitro, suggesting the interaction between AtHB7 and AtHB12 in the regulation of root growth. The conclusion was that AtHB7 and AtHB12 oppositely regulate Al resistance by affecting Al accumulation in root cell wall.
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Affiliation(s)
- Yang Liu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao 266237, China; (Y.L.); (J.X.); (H.T.)
| | - Jiameng Xu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao 266237, China; (Y.L.); (J.X.); (H.T.)
| | - Siyi Guo
- The Key Laboratory of Plant Stress Biology, School of Life Science, Henan University, JinMing Avenue, Henan University, Kaifeng 475004, China;
| | - Xianzheng Yuan
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; (X.Y.); (S.Z.)
| | - Shan Zhao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; (X.Y.); (S.Z.)
| | - Huiyu Tian
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao 266237, China; (Y.L.); (J.X.); (H.T.)
| | - Shaojun Dai
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China;
| | - Xiangpei Kong
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao 266237, China; (Y.L.); (J.X.); (H.T.)
- Correspondence: (X.K.); (Z.D.); Tel.: +86-532-5863-0889 (Z.D.)
| | - Zhaojun Ding
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao 266237, China; (Y.L.); (J.X.); (H.T.)
- Correspondence: (X.K.); (Z.D.); Tel.: +86-532-5863-0889 (Z.D.)
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Sun C, Lv T, Huang L, Liu X, Jin C, Lin X. Melatonin ameliorates aluminum toxicity through enhancing aluminum exclusion and reestablishing redox homeostasis in roots of wheat. J Pineal Res 2020; 68:e12642. [PMID: 32092171 DOI: 10.1111/jpi.12642] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/10/2020] [Accepted: 02/20/2020] [Indexed: 12/18/2022]
Abstract
Melatonin is a universal regulator modulating plant development and responses to abiotic stresses. The alteration and potential roles of melatonin in mediating aluminum (Al) tolerance were investigated in two wheat genotypes differing in Al resistance. Using the high-resolution mass spectrometry, we observed that melatonin contents in Xi Aimai-1 were 1.7-fold higher than that in Yangmai-5. Application of melatonin conferred Al resistance in both genotypes. Melatonin treatment scavenged reactive oxygen species (ROS) accumulation and alleviated Al-induced oxidative damage to lipids and proteins by stimulating antioxidant enzymes and augmenting antioxidants. Additionally, melatonin treatment decreased root tip-Al contents by 19.0% and 15.5% in Xi Aimai-1 and Yangmai-5, respectively. Malate efflux, however, was not altered by melatonin under Al stress. The amount of cell wall polysaccharide and pectin methylesterase activity was significantly increased by Al treatment; but suppressed by melatonin. Melatonin synthesis inhibitor, p-CPA, significantly increased the amount of the Al binding in cell walls of the tolerant genotype, whereas exogenous melatonin decreased cell wall Al content in the sensitive genotype. These results suggest that melatonin alleviated Al toxicity through augmenting antioxidants and inducing antioxidant enzymes to control ROS and enhancing exclusion of Al from root apex by altering cell wall polysaccharides in wheat.
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Affiliation(s)
- Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Ting Lv
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Lin Huang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Xiaoxia Liu
- Zhejiang Provincial Cultivated Land Quality and Fertilizer Administration Station, Hangzhou, China
| | - Chongwei Jin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
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57
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Liu YT, Shi QH, Cao HJ, Ma QB, Nian H, Zhang XX. Heterologous Expression of a Glycine soja C2H2 Zinc Finger Gene Improves Aluminum Tolerance in Arabidopsis. Int J Mol Sci 2020; 21:E2754. [PMID: 32326652 PMCID: PMC7215988 DOI: 10.3390/ijms21082754] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/01/2020] [Accepted: 04/07/2020] [Indexed: 11/16/2022] Open
Abstract
Aluminum (Al) toxicity limits plant growth and has a major impact on the agricultural productivity in acidic soils. The zinc-finger protein (ZFP) family plays multiple roles in plant development and abiotic stresses. Although previous reports have confirmed the function of these genes, their transcriptional mechanisms in wild soybean (Glycine soja) are unclear. In this study, GsGIS3 was isolated from Al-tolerant wild soybean gene expression profiles to be functionally characterized in Arabidopsis. Laser confocal microscopic observations demonstrated that GsGIS3 is a nuclear protein, containing one C2H2 zinc-finger structure. Our results show that the expression of GsGIS3 was of a much higher level in the stem than in the leaf and root and was upregulated under AlCl3, NaCl or GA3 treatment. Compared to the control, overexpression of GsGIS3 in Arabidopsis improved Al tolerance in transgenic lines with more root growth, higher proline and lower Malondialdehyde (MDA) accumulation under concentrations of AlCl3. Analysis of hematoxylin staining indicated that GsGIS3 enhanced the resistance of transgenic plants to Al toxicity by reducing Al accumulation in Arabidopsis roots. Moreover, GsGIS3 expression in Arabidopsis enhanced the expression of Al-tolerance-related genes. Taken together, our findings indicate that GsGIS3, as a C2H2 ZFP, may enhance tolerance to Al toxicity through positive regulation of Al-tolerance-related genes.
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Affiliation(s)
- Yuan-Tai Liu
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China; (Y.-T.L.); (Q.-H.S.); (H.-J.C.); (Q.-B.M.)
- The Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou 510642, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- The Guangdong Subcenter of National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Qi-Han Shi
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China; (Y.-T.L.); (Q.-H.S.); (H.-J.C.); (Q.-B.M.)
- The Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou 510642, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- The Guangdong Subcenter of National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - He-Jie Cao
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China; (Y.-T.L.); (Q.-H.S.); (H.-J.C.); (Q.-B.M.)
- The Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou 510642, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- The Guangdong Subcenter of National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Qi-Bin Ma
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China; (Y.-T.L.); (Q.-H.S.); (H.-J.C.); (Q.-B.M.)
- The Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou 510642, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- The Guangdong Subcenter of National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Hai Nian
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China; (Y.-T.L.); (Q.-H.S.); (H.-J.C.); (Q.-B.M.)
- The Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou 510642, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- The Guangdong Subcenter of National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Xiu-Xiang Zhang
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China; (Y.-T.L.); (Q.-H.S.); (H.-J.C.); (Q.-B.M.)
- The Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou 510642, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- The Guangdong Subcenter of National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
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Wang Y, Yu W, Cao Y, Cai Y, Lyi SM, Wu W, Kang Y, Liang C, Liu J. An exclusion mechanism is epistatic to an internal detoxification mechanism in aluminum resistance in Arabidopsis. BMC PLANT BIOLOGY 2020; 20:122. [PMID: 32188405 PMCID: PMC7079475 DOI: 10.1186/s12870-020-02338-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 03/11/2020] [Indexed: 05/31/2023]
Abstract
BACKGROUND In Arabidopsis, the aluminum (Al) exclusion mechanism is mainly facilitated by ALMT1-mediated malate exudation and MATE-mediated citrate releases from the root. Recently, we have demonstrated that coordinated functioning between an ALMT1-mediated Al exclusion mechanism, via exudation of malate from the root tip, and a NIP1;2-facilitated internal detoxification mechanism, via removal of Al from the root cell wall and subsequent root-to-shoot Al translocation, plays critical roles in achieving overall Al resistance. However, the genetic relationship between ALMT1 and NIP1;2 in these processes remained unclear. RESULTS Through genetic and physiological analyses, we demonstrate that unlike ALMT1 and MATE, which function independently and additively, ALMT1 and NIP1;2 show an epistatic relationship in Al resistance. These results indicate that ALMT1 and NIP1;2 function in the same biochemical pathway, whereas ALMT1 and MATE in different ones. CONCLUSION The establishment of the epistatic relationship and the coordinated functioning between the ALMT1 and NIP1;2-mediated exclusion and internal detoxification mechanisms are pivotal for achieving overall Al resistance in the non-accumulating Arabidopsis plant. We discuss and emphasize the indispensable roles of the root cell wall for the implementation of the Al exclusion mechanism and for the establishment of an epistatic relationship between the ALMT1-mediated exclusion mechanism and the NIP1;2-facilitated internal detoxification mechanism.
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Affiliation(s)
- Yuqi Wang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, China
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
| | - Wancong Yu
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
- Medical Plant Laboratory, Tianjin Research Center of Agricultural Biotechnology, Tianjin, 300384, China
| | - Yu Cao
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Yanfei Cai
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Sangbom M Lyi
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
| | - Weiwei Wu
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Yan Kang
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
- School of Life Sciences, Inner Mongolia University, Hohhot, 010021, Inner Mongolia, China
| | - Cuiyue Liang
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Jiping Liu
- Robert Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA.
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Root transcriptome reveals efficient cell signaling and energy conservation key to aluminum toxicity tolerance in acidic soil adapted rice genotype. Sci Rep 2020; 10:4580. [PMID: 32165659 PMCID: PMC7067865 DOI: 10.1038/s41598-020-61305-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 02/25/2020] [Indexed: 11/24/2022] Open
Abstract
Aluminium (Al) toxicity is the single most important contributing factor constraining crop productivity in acidic soils. Hydroponics based screening of three rice genotypes, a tolerant (ARR09, AR), a susceptible (IR 1552, IR) and an acid soil adapted landrace (Theruvii, TH) revealed that AR accumulates less Al and shows minimum decrease in shoot and root biomass under Al toxicity conditions when compared with IR. Transcriptome data generated on roots (grown in presence or absence of Al) led to identification of ~1500 transcripts per genotype with percentage annotation ranging from 21.94% (AR) to 29.94% (TH). A total of 511, 804 and 912 DEGs were identified in genotypes AR, IR and TH, respectively. IR showed upregulation of transcripts involved in exergonic processes. AR appears to conserve energy by downregulating key genes of glycolysis pathway and maintaining transcript levels of key exergonic step enzymes under Al stress. The tolerance in AR appears to be as a result of novel mechanism as none of the reported Al toxicity genes or QTLs overlap with significant DEGs. Components of signal transduction and regulatory machinery like transcripts encoding zinc finger protein, calcieurin binding protein and cell wall associated transcripts are among the highly upregulated DEGs in AR, suggesting increased and better signal transduction in response to Al stress in tolerant rice. Sequencing of NRAT1 and glycine-rich protein A3 revealed distinct haplotype for indica type AR. The newly identified components of Al tolerance will help in designing molecular breeding tools to enhance rice productivity in acidic soils.
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Badia MB, Maurino VG, Pavlovic T, Arias CL, Pagani MA, Andreo CS, Saigo M, Drincovich MF, Gerrard Wheeler MC. Loss of function of Arabidopsis NADP-malic enzyme 1 results in enhanced tolerance to aluminum stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 101:653-665. [PMID: 31626366 DOI: 10.1111/tpj.14571] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 09/10/2019] [Accepted: 09/19/2019] [Indexed: 05/29/2023]
Abstract
In acidic soils, aluminum (Al) toxicity is a significant limitation to crop production worldwide. Given its Al-binding capacity, malate allows internal as well as external detoxification strategies to cope with Al stress, but little is known about the metabolic processes involved in this response. Here, we analyzed the relevance of NADP-dependent malic enzyme (NADP-ME), which catalyzes the oxidative decarboxylation of malate, in Al tolerance. Plants lacking NADP-ME1 (nadp-me1) display reduced inhibition of root elongation along Al treatment compared with the wild type (wt). Moreover, wt roots exposed to Al show a drastic decrease in NADP-ME1 transcript levels. Although malate levels in seedlings and root exudates are similar in nadp-me1 and wt, a significant increase in intracellular malate is observed in roots of nadp-me1 after long exposure to Al. The nadp-me1 plants also show a lower H2 O2 content in root apices treated with Al and no inhibition of root elongation when exposed to glutamate, an amino acid implicated in Al signaling. Proteomic studies showed several differentially expressed proteins involved in signal transduction, primary metabolism and protection against biotic and other abiotic stimuli and redox processes in nadp-me1, which may participate directly or indirectly in Al tolerance. The results indicate that NADP-ME1 is involved in adjusting the malate levels in the root apex, and its loss results in an increased content of this organic acid. Furthermore, the results suggest that NADP-ME1 affects signaling processes, such as the generation of reactive oxygen species and those that involve glutamate, which could lead to inhibition of root growth.
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Affiliation(s)
- Mariana Beatriz Badia
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
| | - Verónica Graciela Maurino
- Institute of Developmental and Molecular Biology of Plants, Plant Molecular Physiology and Biotechnology Group, Heinrich-Heine-Universität, Universitätsstrasse 1, 40225, Düsseldorf, Germany
- Cluster of Excellence on Plant Sciences (CEPLAS), Universitätsstrasse 1, 40225, Düsseldorf, Germany
| | - Tatiana Pavlovic
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
| | - Cintia Lucía Arias
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
| | - María Ayelén Pagani
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
| | - Carlos Santiago Andreo
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
| | - Mariana Saigo
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
| | - María Fabiana Drincovich
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
| | - Mariel Claudia Gerrard Wheeler
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
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Gallo-Franco JJ, Sosa CC, Ghneim-Herrera T, Quimbaya M. Epigenetic Control of Plant Response to Heavy Metal Stress: A New View on Aluminum Tolerance. FRONTIERS IN PLANT SCIENCE 2020; 11:602625. [PMID: 33391313 PMCID: PMC7772216 DOI: 10.3389/fpls.2020.602625] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/23/2020] [Indexed: 05/05/2023]
Abstract
High concentrations of heavy metal (HM) ions impact agronomic staple crop production in acid soils (pH ≤ 5) due to their cytotoxic, genotoxic, and mutagenic effects. Among cytotoxic ions, the trivalent aluminum cation (Al3+) formed by solubilization of aluminum (Al) into acid soils, is one of the most abundant and toxic elements under acidic conditions. In recent years, several studies have elucidated the different signal transduction pathways involved in HM responses, identifying complementary genetic mechanisms conferring tolerance to plants. Although epigenetics has become more relevant in abiotic stress studies, epigenetic mechanisms underlying plant responses to HM stress remain poorly understood. This review describes the main epigenetic mechanisms related to crop responses during stress conditions, specifically, the molecular evidence showing how epigenetics is at the core of plant adaptation responses to HM ions. We highlight the epigenetic mechanisms that induce Al tolerance. Likewise, we analyze the pivotal relationship between epigenetic and genetic factors associated with HM tolerance. Finally, using rice as a study case, we performed a general analysis over previously whole-genome bisulfite-seq published data. Specific genes related to Al tolerance, measured in contrasting tolerant and susceptible rice varieties, exhibited differences in DNA methylation frequency. The differential methylation patterns could be associated with epigenetic regulation of rice responses to Al stress, highlighting the major role of epigenetics over specific abiotic stress responses.
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Affiliation(s)
- Jenny Johana Gallo-Franco
- Departamento de Ciencias Naturales y Matemáticas, Pontificia Universidad Javeriana, Cali, Cali, Colombia
| | - Chrystian Camilo Sosa
- Departamento de Ciencias Naturales y Matemáticas, Pontificia Universidad Javeriana, Cali, Cali, Colombia
- Grupo de Investigación en Evolución, Ecología y Conservación EECO, Programa de Biología, Facultad de Ciencias Básicas y Tecnologías, Universidad del Quindío, Armenia, Colombia
| | | | - Mauricio Quimbaya
- Departamento de Ciencias Naturales y Matemáticas, Pontificia Universidad Javeriana, Cali, Cali, Colombia
- *Correspondence: Mauricio Quimbaya,
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Yang S, Li H, Bhatti S, Zhou S, Yang Y, Fish T, Thannhauser TW. The Al-induced proteomes of epidermal and outer cortical cells in root apex of cherry tomato ‘LA 2710’. J Proteomics 2020; 211:103560. [DOI: 10.1016/j.jprot.2019.103560] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 10/25/2022]
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Analysis of Interacting Proteins of Aluminum Toxicity Response Factor ALS3 and CAD in Citrus. Int J Mol Sci 2019; 20:ijms20194846. [PMID: 31569546 PMCID: PMC6801426 DOI: 10.3390/ijms20194846] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 12/31/2022] Open
Abstract
Aluminum (Al) treatment significantly decreased the dry weight (DW) of stem, shoot and whole plant of both Citrus sinensis and C. grandis, but did not change that of root. Al significantly decreased leaf DW of C. grandis, increased the ratio of root to shoot and the lignin content in roots of both species. The higher content of Al in leaves and stems and lignin in roots of C. grandis than that of C. sinensis might be due to the over-expression of Al sensitive 3 (ALS3) and cinnamyl alcohol deaminase (CAD) in roots of C. grandis, respectively. By using yeast-two-hybridazation (Y2H) and bimolecular fluorescence complementation (BiFC) techniques, we obtained the results that glutathione S-transferase (GST), vacuolar-type proton ATPase (V-ATPase), aquaporin PIP2 (PIP2), ubiquitin carboxyl-terminal hydrolase 13 (UCT13), putative dicyanin blue copper protein (DCBC) and uncharacterized protein 2 (UP2) were interacted with ALS3 and GST, V-ATPase, Al sensitive 3 (ALS3), cytochrome P450 (CP450), PIP2, uncharacterized protein 1 (UP1) and UP2 were interacted with CAD. Annotation analysis revealed that these proteins were involved in detoxification, cellular transport, post-transcriptional modification and oxidation-reduction homeostasis or lignin biosynthesis in plants. Real-time quantitative PCR (RT-qPCR) analysis further revealed that the higher gene expression levels of most of these interacting proteins in C. grandis roots than that in C. sinensis ones were consistent with the higher contents of lignin in C. grandis roots and Al absorbed by C. grandis. In conclusion, our study identified some key interacting components of Al responsive proteins ALS3 and CAD, which could further help us to understand the molecular mechanism of Al tolerance in citrus plants and provide new information to the selection and breeding of tolerant cultivars, which are cultivated in acidic areas.
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Qiu W, Wang N, Dai J, Wang T, Kochian LV, Liu J, Zuo Y. AhFRDL1-mediated citrate secretion contributes to adaptation to iron deficiency and aluminum stress in peanuts. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:2873-2886. [PMID: 30825369 DOI: 10.1093/jxb/erz089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 03/17/2019] [Indexed: 05/22/2023]
Abstract
Although citrate transporters are involved in iron (Fe) translocation and aluminum (Al) tolerance in plants, to date none of them have been shown to confer both biological functions in plant species that utilize Fe-absorption Strategy I. In this study, we demonstrated that AhFRDL1, a citrate transporter gene from peanut (Arachis hypogaea) that is induced by both Fe-deficiency and Al-stress, participates in both root-to-shoot Fe translocation and Al tolerance. Expression of AhFRDL1 induced by Fe deficiency was located in the root stele, but under Al-stress expression was observed across the entire root-tip cross-section. Overexpression of AhFRDL1 restored efficient Fe translocation in Atfrd3 mutants and Al resistance in AtMATE-knockout mutants. Knocking down AhFRDL1 in the roots resulted in reduced xylem citrate and reduced concentrations of active Fe in young leaves. Furthermore, AhFRDL1-knockdown lines had reduced root citrate exudation and were more sensitive to Al toxicity. Compared to an Al-sensitive variety, enhanced AhFRDL1 expression in an Fe-efficient variety contributed to higher levels of Al tolerance and Fe translocation by promoting citrate secretion. These results indicate that AhFRDL1 plays a significant role in Fe translocation and Al tolerance in Fe-efficient peanut varieties under different soil-stress conditions. Given its dual biological functions, AhFRDL1 may serve as a useful genetic marker for breeding for high Fe efficiency and Al tolerance.
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Affiliation(s)
- Wei Qiu
- Key Laboratory of Plant-Soil Interactions, MOE, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Nanqi Wang
- Key Laboratory of Plant-Soil Interactions, MOE, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Jing Dai
- Key Laboratory of Plant-Soil Interactions, MOE, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Tianqi Wang
- Key Laboratory of Plant-Soil Interactions, MOE, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Leon V Kochian
- Robert W. Holley Center, US Department of Agriculture-Agricultural Research Service, Ithaca, NY, USA
| | - Jiping Liu
- Robert W. Holley Center, US Department of Agriculture-Agricultural Research Service, Ithaca, NY, USA
| | - Yuanmei Zuo
- Key Laboratory of Plant-Soil Interactions, MOE, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
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65
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Surface Functionalization of Exposed Core Glass Optical Fiber for Metal Ion Sensing. SENSORS 2019; 19:s19081829. [PMID: 30999613 PMCID: PMC6515075 DOI: 10.3390/s19081829] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/12/2019] [Accepted: 04/15/2019] [Indexed: 11/28/2022]
Abstract
One of the biggest challenges associated with exposed core glass optical fiber-based sensing is the availability of techniques that can be used to generate reproducible, homogeneous and stable surface coating. We report a one step, solvent free method for surface functionalization of exposed core glass optical fiber that allows achieving binding of fluorophore of choice for metal ion sensing. The plasma polymerization-based method yielded a homogeneous, reproducible and stable coating, enabling high sensitivity aluminium ion sensing. The sensing platform reported in this manuscript is versatile and can be used to bind different sensing molecules opening new avenues for optical fiber-based sensing.
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66
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Molecular Mechanisms for Coping with Al Toxicity in Plants. Int J Mol Sci 2019; 20:ijms20071551. [PMID: 30925682 PMCID: PMC6480313 DOI: 10.3390/ijms20071551] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 03/25/2019] [Accepted: 03/25/2019] [Indexed: 01/03/2023] Open
Abstract
Aluminum (Al) toxicity is one of the major constraints to agricultural production in acid soils. Molecular mechanisms of coping with Al toxicity have now been investigated in a range of plant species. Two main mechanisms of Al tolerance in plants are Al exclusion from the roots and the ability to tolerate Al in the roots. This review focuses on the recent discovery of novel genes and mechanisms that confer Al tolerance in plants and summarizes our understanding of the physiological, genetic, and molecular basis for plant Al tolerance. We hope this review will provide a theoretical basis for the genetic improvement of Al tolerance in plants.
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67
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Brun NR, Fields PD, Horsfield S, Mirbahai L, Ebert D, Colbourne JK, Fent K. Mixtures of Aluminum and Indium Induce More than Additive Phenotypic and Toxicogenomic Responses in Daphnia magna. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:1639-1649. [PMID: 30608651 DOI: 10.1021/acs.est.8b05457] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Aquatic systems are contaminated by many metals but their effects as mixtures on organisms are not well understood. Here, we assessed effects of aluminum with fairly well-known modes of actions and indium, an understudied emerging contaminant from electronics, followed by studying equi-effective mixtures thereof. We report acute and adverse phenotypic effects in Daphnia magna adults and global transcriptomic effects employing RNA sequencing in neonates. The mixture induced more than additive activity in mortality and in physiological effects, including growth and reproduction. Similarly, transcriptomic effects were more than additive, as indicated by a markedly higher number of 463 differentially expressed transcripts in the mixture and by distinct classes of genes assigned to several biological functions, including metabolic processes, suggesting depleted energy reserves, which may be responsible for the observed impaired reproduction and growth. A gene set enrichment analysis (GSEA) of a priori known response pathways for aluminum confirmed activation of distinct molecular pathways by indium. Our study is highlighting more than additive effects at the transcriptional and physiological level and is providing a state-of-the art approach to mixture analysis, which is important for risk assessment of these metals and metal mixtures.
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Affiliation(s)
- Nadja R Brun
- School of Life Sciences , University of Applied Sciences and Arts Northwestern Switzerland , Langackerstrasse 30 , 4132 Muttenz , Switzerland
- Institute of Biogeochemistry and Pollutant Dynamics , ETH Zürich , Universitätsstrasse 16 , 8092 Zürich , Switzerland
| | - Peter D Fields
- Zoological Institute , University of Basel , Vesalgasse 1 , 4051 Basel , Switzerland
| | - Samuel Horsfield
- School of Biosciences , University of Birmingham , Edgbaston, Birmingham B15 2TT , United Kingdom
| | - Leda Mirbahai
- School of Biosciences , University of Birmingham , Edgbaston, Birmingham B15 2TT , United Kingdom
| | - Dieter Ebert
- Zoological Institute , University of Basel , Vesalgasse 1 , 4051 Basel , Switzerland
| | - John K Colbourne
- School of Biosciences , University of Birmingham , Edgbaston, Birmingham B15 2TT , United Kingdom
| | - Karl Fent
- School of Life Sciences , University of Applied Sciences and Arts Northwestern Switzerland , Langackerstrasse 30 , 4132 Muttenz , Switzerland
- Institute of Biogeochemistry and Pollutant Dynamics , ETH Zürich , Universitätsstrasse 16 , 8092 Zürich , Switzerland
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68
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Fan W, Xu JM, Wu P, Yang ZX, Lou HQ, Chen WW, Jin JF, Zheng SJ, Yang JL. Alleviation by abscisic acid of Al toxicity in rice bean is not associated with citrate efflux but depends on ABI5-mediated signal transduction pathways. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2019; 61:140-154. [PMID: 29975451 DOI: 10.1111/jipb.12695] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 07/04/2018] [Indexed: 06/08/2023]
Abstract
Under conditions of aluminum (Al) toxicity, which severely inhibits root growth in acidic soils, plants rapidly alter their gene expression to optimize physiological fitness for survival. Abscisic acid (ABA) has been suggested as a mediator between Al stress and gene expression, but the underlying mechanisms remain largely unknown. Here, we investigated ABA-mediated Al-stress responses, using integrated physiological and molecular biology approaches. We demonstrate that Al stress caused ABA accumulation in the root apex of rice bean (Vigna umbellata [Thunb.] Ohwi & Ohashi), which positively regulated Al tolerance. However, this was not associated with known Al-tolerance mechanisms. Transcriptomic analysis revealed that nearly one-third of the responsive genes were shared between the Al-stress and ABA treatments. We further identified a transcription factor, ABI5, as being positively involved in Al tolerance. Arabidopsis abi5 mutants displayed increased sensitivity to Al, which was not related to the regulation of AtALMT1 and AtMATE expression. Functional categorization of ABI5-mediated genes revealed the importance of cell wall modification and osmoregulation in Al tolerance, a finding supported by osmotic stress treatment on Al tolerance. Our results suggest that ABA signal transduction pathways provide an additional layer of regulatory control over Al tolerance in plants.
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Affiliation(s)
- Wei Fan
- College of Resources and Environment, Yunan Agricultural University, Kunming 650201, China
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jia Meng Xu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Pei Wu
- College of Resources and Environment, Yunan Agricultural University, Kunming 650201, China
| | - Zhi Xin Yang
- College of Resources and Environment, Yunan Agricultural University, Kunming 650201, China
| | - He Qiang Lou
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wei Wei Chen
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou, Normal University, Hangzhou 310036, China
| | - Jian Fen Jin
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shao Jian Zheng
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jian Li Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
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F-box protein RAE1 regulates the stability of the aluminum-resistance transcription factor STOP1 in Arabidopsis. Proc Natl Acad Sci U S A 2018; 116:319-327. [PMID: 30559192 DOI: 10.1073/pnas.1814426116] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Aluminum (Al) toxicity is a major factor limiting crop production on acid soils, which represent over 30% of the world's arable land. Some plants have evolved mechanisms to detoxify Al. Arabidopsis, for example, secretes malate via the AtALMT1 transporter to chelate and detoxify Al. The C2H2-type transcription factor STOP1 plays a crucial role in Al resistance by inducing the expression of a set of genes, including AtALMT1 Here, we identify and characterize an F-box protein-encoding gene regulation of Atalmt1 expression 1 (RAE1) that regulates the level of STOP1. Mutation and overexpression of RAE1 increases or decreases the expression of AtALMT1 and other STOP1-regulated genes, respectively. RAE1 interacts with and promotes the degradation of STOP1 via the ubiquitin-26S proteasome pathway, while Al stress promotes the accumulation of STOP1. We find that STOP1 up-regulates RAE1 expression by directly binding to the RAE1 promoter, thus forming a negative feedback loop between STOP1 and RAE1. Our results demonstrate that RAE1 influences Al resistance through the ubiquitination and degradation of STOP1.
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70
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Chen L, Cai Y, Liu X, Guo C, Yao W, Sun S, Wu C, Jiang B, Han T, Hou W. GmGRP-like gene confers Al tolerance in Arabidopsis. Sci Rep 2018; 8:13601. [PMID: 30206281 PMCID: PMC6134052 DOI: 10.1038/s41598-018-31703-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/23/2018] [Indexed: 11/09/2022] Open
Abstract
Aluminium (Al) toxicity restrains water and nutrient uptake and is toxic to plant roots, ultimately inhibiting crop production. Here, we isolated and characterized a soybean glycine-rich protein-like gene (GmGRPL) that is mainly expressed in the root and that is regulated by Al treatment. Overexpression of GmGRPL can alleviate Al-induced root growth inhibition in Arabidopsis. The levels of IAA and ethylene in GmGRPL-overexpressing hairy roots were lower than those in control and RNA interference-exposed GmGRPL hairy roots with or without Al stress, which were mainly regulated by TAA1 and ACO, respectively. In transgenic soybean hairy roots, the MDA, H2O2 and O2-·content in GmGRPL-overexpressing hairy roots were less than that in control and RNA interference-exposed GmGRPL hairy roots under Al stress. In addition, IAA and ACC can enhance the expression level of the GmGRPL promoter with or without Al stress. These results indicated that GmGRPL can alleviate Al-induced root growth inhibition by regulating the level of IAA and ethylene and improving antioxidant activity.
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Affiliation(s)
- Li Chen
- National Center for Transgenic Research in Plants, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yupeng Cai
- National Center for Transgenic Research in Plants, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiujie Liu
- National Center for Transgenic Research in Plants, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chen Guo
- National Center for Transgenic Research in Plants, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Weiwei Yao
- National Center for Transgenic Research in Plants, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shi Sun
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Cunxiang Wu
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Bingjun Jiang
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Tianfu Han
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Wensheng Hou
- National Center for Transgenic Research in Plants, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
- Ministry of Agriculture Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Zyablitsin AV, Dmitriev AA, Krasnov GS, Bolsheva NL, Rozhmina TA, Muravenko OV, Fedorova MS, Snezhkina AV, Kudryavtseva AV, Melnikova NV. CAX3 Gene is Involved in Flax Response to High Soil Acidity and Aluminum Exposure. Mol Biol 2018. [DOI: 10.1134/s0026893318040192] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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72
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Insights into aluminum-tolerance pathways in Stylosanthes as revealed by RNA-Seq analysis. Sci Rep 2018; 8:6072. [PMID: 29666506 PMCID: PMC5904178 DOI: 10.1038/s41598-018-24536-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 04/03/2018] [Indexed: 11/09/2022] Open
Abstract
Stylo has a great potential for Al3+ resistance in acidic soils through secretion of citrate from the roots. To get insight into the molecular mechanisms responsible, transcriptomic changes were investigated in the roots after treatment with T01 (-Al3+, pH6.0), T02 (-Al3+, pH4.3) and T03 (50 µM AlCl3, pH4.3). In total, 83,197 unigenes generated from 130,933 contigs were obtained. Of them, 282, 148 and 816 differentially expressed unigenes (DEGs) were revealed in T01_vs_T02, T02_vs_T03 and T01_vs_T03 comparison, respectively (FDR < 0.001, log2FC > 2). DEGs by Al3+ were related to G-proteins, diacyglycerol and inositol metabolism, calcium-signaling, transcription regulation, protein modification and transporters for detoxification of Al3+. Additionally, Al3+ facilitates citrate synthesis via modifying gene expression of pathways responsible for citrate metabolism. Overall, Al3+ resistance in stylo involves multiple strategies and enhancement of citrate anabolism. The Al3+ signal transmits through heterotrimeric G-proteins, phospholipase C, inositol triphosphate, diacylglycerol, Ca2+ and protein kinases, thereby activating transcription and anion channels in plasma membrane, and resulting in citrate secretion from stylo roots.
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Peng W, Wu W, Peng J, Li J, Lin Y, Wang Y, Tian J, Sun L, Liang C, Liao H. Characterization of the soybean GmALMT family genes and the function of GmALMT5 in response to phosphate starvation. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2018; 60:216-231. [PMID: 29045000 DOI: 10.1111/jipb.12604] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 10/16/2017] [Indexed: 05/27/2023]
Abstract
A potential mechanism to enhance utilization of sparingly soluble forms of phosphorus (P) is the root secretion of malate, which is mainly mediated by the ALMT gene family in plants. In this study, a total of 34 GmALMT genes were identified in the soybean genome. Expression patterns diverged considerably among GmALMTs in response to phosphate (Pi) starvation in leaves, roots and flowers, with expression altered by P availability in 26 of the 34 GmALMTs. One root-specific GmALMT whose expression was significantly enhanced by Pi-starvation, GmALMT5, was studied in more detail to determine its possible role in soybean P nutrition. Analysis of GmALMT5 tissue expression patterns, subcellular localization, and malate exudation from transgenic soybean hairy roots overexpressing GmALMT5, demonstrated that GmALMT5 is a plasma membrane protein that mediates malate efflux from roots. Furthermore, both growth and P content of transgenic Arabidopsis overexpressing GmALMT5 were significantly increased when sparingly soluble Ca-P was used as the external P source. Taken together, these results indicate that members of the soybean GmALMT gene family exhibit diverse responses to Pi starvation. One member of this family, GmALMT5, might contribute to soybean P efficiency by enhancing utilization of sparingly soluble P sources under P limited conditions.
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Affiliation(s)
- Wenting Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China
| | - Weiwei Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China
| | - Junchu Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China
| | - Jiaojiao Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China
| | - Yan Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China
| | - Yanan Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China
| | - Jiang Tian
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China
| | - Lili Sun
- Root Biology Center, Hai Xia Institute of Science and Technology, Fu Jian Agricultural and Forest University, Fuzhou 350002, China
| | - Cuiyue Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China
| | - Hong Liao
- Root Biology Center, Hai Xia Institute of Science and Technology, Fu Jian Agricultural and Forest University, Fuzhou 350002, China
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Wagatsuma T, Maejima E, Watanabe T, Toyomasu T, Kuroda M, Muranaka T, Ohyama K, Ishikawa A, Usui M, Hossain Khan S, Maruyama H, Tawaraya K, Kobayashi Y, Koyama H. Dark conditions enhance aluminum tolerance in several rice cultivars via multiple modulations of membrane sterols. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:567-577. [PMID: 29294038 PMCID: PMC5853495 DOI: 10.1093/jxb/erx414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/30/2017] [Indexed: 05/22/2023]
Abstract
Aluminum-sensitive rice (Oryza sativa L.) cultivars showed increased Al tolerance under dark conditions, because less Al accumulated in the root tips (1 cm) under dark than under light conditions. Under dark conditions, the root tip concentration of total sterols, which generally reduce plasma membrane permeabilization, was higher in the most Al-sensitive japonica cultivar, Koshihikari (Ko), than in the most Al-tolerant cultivar, Rikuu-132 (R132), but the phospholipid content did not differ between the two. The Al treatment increased the proportion of stigmasterol (which has no ability to reduce membrane permeabilization) out of total sterols similarly in both cultivars under light conditions, but it decreased more in Ko under dark conditions. The carotenoid content in the root tip of Al-treated Ko was significantly lower under dark than under light conditions, indicating that isopentenyl diphosphate transport from the cytosol to plastids was decreased under dark conditions. HMG2 and HMG3 (encoding the key sterol biosynthetic enzyme 3-hydroxy-3-methylglutaryl CoA reductase) transcript levels in the root tips were enhanced under dark conditions. We suggest that the following mechanisms contribute to the increase in Al tolerance under dark conditions: inhibition of stigmasterol formation to retain membrane integrity; greater partitioning of isopentenyl diphosphate for sterol biosynthesis; and enhanced expression of HMGs to increase sterol biosynthesis.
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Affiliation(s)
- Tadao Wagatsuma
- Faculty of Agriculture, Yamagata University, Tsuruoka, Japan
- Correspondence:
| | - Eriko Maejima
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | | | | | | | - Toshiya Muranaka
- Plant Science Center, RIKEN, Yokohama, Japan
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
| | | | | | - Masami Usui
- Faculty of Agriculture, Yamagata University, Tsuruoka, Japan
| | | | - Hayato Maruyama
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | | | - Yuriko Kobayashi
- Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Hiroyuki Koyama
- Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
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75
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Wang Y, Cai Y, Cao Y, Liu J. Aluminum-activated root malate and citrate exudation is independent of NIP1;2-facilitated root-cell-wall aluminum removal in Arabidopsis. PLANT SIGNALING & BEHAVIOR 2018; 13:e1422469. [PMID: 29293394 PMCID: PMC5790415 DOI: 10.1080/15592324.2017.1422469] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 12/12/2017] [Accepted: 12/21/2017] [Indexed: 05/27/2023]
Abstract
In Arabidopsis, aluminum (Al) exclusion from the root is mainly facilitated by Al-activated root malate and citrate exudation through the ALMT1 malate transporter and the MATE citrate transporter, respectively. However, the nature of an internal Al tolerance mechanism remains largely unknown. In a recent study, we showed that NIP1;2 facilitates Al-malate transport from the root cell wall into the root symplasm and subsequent root-to-shoot translocation and thus NIP1;2 plays key roles in Al detoxification and internal tolerance in Arabidopsis. We discovered that the NIP1;2-mediated Al removal from the root cell wall requires a functional ALMT1-mediated malate exudation system, which allows the formation of an Al-malate complex in the root cell wall. Thus, a coordinated function between the exclusion and the internal resistance mechanisms, linked by the ALMT1-mediated root malate exudation and the NIP1;2-mediated Al uptake system, is critical for Al resistance in Arabidopsis.
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Affiliation(s)
- Yuqi Wang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
- Robert W. Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, USA
| | - Yanfei Cai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yu Cao
- Robert W. Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, USA
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jiping Liu
- Robert W. Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, USA
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76
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Alarcón-Poblete E, Inostroza-Blancheteau C, Alberdi M, Rengel Z, Reyes-Díaz M. Molecular regulation of aluminum resistance and sulfur nutrition during root growth. PLANTA 2018; 247:27-39. [PMID: 29119269 DOI: 10.1007/s00425-017-2805-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/31/2017] [Indexed: 06/07/2023]
Abstract
Aluminum toxicity and sulfate deprivation both regulate microRNA395 expression, repressing its low-affinity sulfate transporter ( SULTR2;1 ) target. Sulfate deprivation also induces the high-affinity sulfate transporter gene ( SULTR12 ), allowing enhanced sulfate uptake. Few studies about the relationships between sulfate, a plant nutrient, and aluminum, a toxic ion, are available; hence, the molecular and physiological processes underpinning this interaction are poorly understood. The Al-sulfate interaction occurs in acidic soils, whereby relatively high concentrations of trivalent toxic aluminum (Al3+) may hamper root growth, limiting uptake of nutrients, including sulfur (S). On the other side, Al3+ may be detoxified by complexation with sulfate in the acid soil solution as well as in the root-cell vacuoles. In this review, we focus on recent insights into the mechanisms governing plant responses to Al toxicity and its relationship with sulfur nutrition, emphasizing the role of phytohormones, microRNAs, and ion transporters in higher plants. It is known that Al3+ disturbs gene expression and enzymes involved in biosynthesis of S-containing cysteine in root cells. On the other hand, Al3+ may induce ethylene biosynthesis, enhance reactive oxygen species production, alter phytohormone transport, trigger root growth inhibition and promote sulfate uptake under S deficiency. MicroRNA395, regulated by both Al toxicity and sulfate deprivation, represses its low-affinity Sulfate Transporter 2;1 (SULTR2;1) target. In addition, sulfate deprivation induces High Affinity Sulfate Transporters (HAST; SULTR1;2), improving sulfate uptake from low-sulfate soil solutions. Identification of new microRNAs and cloning of their target genes are necessary for a better understanding of the role of molecular regulation of plant resistance to Al stress and sulfate deprivation.
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Affiliation(s)
- Edith Alarcón-Poblete
- Programa de Doctorado en Ciencias de Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
| | - Claudio Inostroza-Blancheteau
- Escuela de Agronomía, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 56-D, Temuco, Chile
- Núcleo de Investigación en Producción Alimentaría, Universidad Católica de Temuco, P.O. Box 56-D, Temuco, Chile
| | - Miren Alberdi
- Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco, Chile
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Casilla 54-D, Temuco, Chile
| | - Zed Rengel
- Soil Science and Plant Nutrition, UWA School of Agriculture and Environment, University of Western Australia, Perth, WA, 6009, Australia
| | - Marjorie Reyes-Díaz
- Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco, Chile.
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Casilla 54-D, Temuco, Chile.
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77
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Wu W, Lin Y, Chen Q, Peng W, Peng J, Tian J, Liang C, Liao H. Functional Conservation and Divergence of Soybean GmSTOP1 Members in Proton and Aluminum Tolerance. FRONTIERS IN PLANT SCIENCE 2018; 9:570. [PMID: 29755502 PMCID: PMC5932199 DOI: 10.3389/fpls.2018.00570] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 04/11/2018] [Indexed: 05/13/2023]
Abstract
Proton (H+) and aluminum (Al) rhizotoxicity are two major factors limiting crop production in acid soils. Orthologs of the zinc-finger transcription factor, Sensitive To Proton Rhizotoxicity1 (STOP1), have been found to play an essential role in the tolerance to both stresses by regulating the transcription of multiple H+ and Al tolerant genes. In the present study, color three GmSTOP1 homologs were identified in the soybean genome. All three GmSTOP1 exhibited similar properties as reflected by the harboring of four potential zinc finger domains, localizing in the nucleus, and having transactivation activity. Expression profiling showed that H+ stress slightly modulated transcription of all three GmSTOP1s, while Al significantly up-regulated GmSTOP1-1 and GmSTOP1-3 in root apexes and GmSTOP1-3 in basal root regions. Furthermore, complementation assays in an Arabidopsis Atstop1 mutant line overexpressing these GmSTOP1s demonstrated that all three GmSTOP1s largely reverse the H+ sensitivity of the Atstop1 mutant and restore the expression of genes involved in H+ tolerance. In contrast, only GmSTOP1-1 and GmSTOP1-3 could partially recover Al tolerance in the Atstop1 mutant. These results suggest that the function of three GmSTOP1s is evolutionarily conserved in H+ tolerance, but not in Al tolerance.
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Affiliation(s)
- Weiwei Wu
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
| | - Yan Lin
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
| | - Qianqian Chen
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
| | - Wenting Peng
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Junchu Peng
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
| | - Jiang Tian
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
| | - Cuiyue Liang
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- *Correspondence: Cuiyue Liang,
| | - Hong Liao
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou, China
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78
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Huang S, Gao J, You J, Liang Y, Guan K, Yan S, Zhan M, Yang Z. Identification of STOP1-Like Proteins Associated With Aluminum Tolerance in Sweet Sorghum ( Sorghum bicolor L.). FRONTIERS IN PLANT SCIENCE 2018; 9:258. [PMID: 29541086 PMCID: PMC5835670 DOI: 10.3389/fpls.2018.00258] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Aluminum (Al) toxicity in acidic soils affects crop production worldwide. C2H2-type zinc finger transcription factor STOP1/ART1-mediated expression of Al tolerance genes has been shown to be important for Al resistance in Arabidopsis, rice and other crop plants. Here, we identified and characterized four STOP1-like proteins (SbSTOP1a, SbSTOP1b, SbSTOP1c, and SbSTOP1d) in sweet sorghum, a variant of grain sorghum (Sorghum bicolor L.). Al induced the transcription of the four SbSTOP1 genes in both time- and Al concentration-dependent manners. All SbSTOP1 proteins localized to the cell nucleus, and they showed transcriptional activity in a yeast expression system. In the HEK 293 coexpression system, SbSTOP1d showed transcriptional regulation of SbSTAR2 and SbMATE, indicating the possible existence of another SbSTOP1 and SbSTAR2-dependent Al tolerance mechanism in sorghum apart from the reported SbMATE-mediated Al exclusion mechanism. A transgenic complementation assay showed that SbSTOP1d significantly rescued the Al-sensitivity characteristic of the Atstop1 mutant. Additionally, yeast two-hybrid and bimolecular fluorescence complementation (BiFC) assays showed that SbSTOP1d interacted with SbSTOP1b and SbSTOP1d itself, suggesting that SbSTOP1 may function as a homodimer and/or heterodimer. These results indicate that STOP1 plays an important role in Al tolerance in sweet sorghum and extend our understanding of the complex regulatory mechanisms of STOP1-like proteins in response to Al toxicity.
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79
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Zhang J, Wei J, Li D, Kong X, Rengel Z, Chen L, Yang Y, Cui X, Chen Q. The Role of the Plasma Membrane H +-ATPase in Plant Responses to Aluminum Toxicity. FRONTIERS IN PLANT SCIENCE 2017; 8:1757. [PMID: 29089951 PMCID: PMC5651043 DOI: 10.3389/fpls.2017.01757] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 09/25/2017] [Indexed: 05/04/2023]
Abstract
Aluminum (Al) toxicity is a key factor limiting plant growth and crop production on acid soils. Increasing the plant Al-detoxification capacity and/or breeding Al-resistant cultivars are a cost-effective strategy to support crop growth on acidic soils. The plasma membrane H+-ATPase plays a central role in all plant physiological processes. Changes in the activity of the plasma membrane H+-ATPase through regulating the expression and phosphorylation of this enzyme are also involved in many plant responses to Al toxicity. The plasma membrane H+-ATPase mediated H+ influx may be associated with the maintenance of cytosolic pH and the plasma membrane gradients as well as Al-induced citrate efflux mediated by a H+-ATPase-coupled MATE co-transport system. In particular, modulating the activity of plasma membrane H+-ATPase through application of its activators (e.g., magnesium or IAA) or using transgenics has effectively enhanced plant resistance to Al stress in several species. In this review, we critically assess the available knowledge on the role of the plasma membrane H+-ATPase in plant responses to Al stress, incorporating physiological and molecular aspects.
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Affiliation(s)
- Jiarong Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Jian Wei
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Dongxu Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Xiangying Kong
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
- Faculty of Architecture and City Planning, Kunming University of Science and Technology, Kunming, China
| | - Zed Rengel
- UWA School of Agriculture and Environment, Faculty of Science, University of Western Australia, Perth, WA, Australia
| | - Limei Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Ye Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Xiuming Cui
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Qi Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
- UWA School of Agriculture and Environment, Faculty of Science, University of Western Australia, Perth, WA, Australia
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80
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Kichigina NE, Puhalsky JV, Shaposhnikov AI, Azarova TS, Makarova NM, Loskutov SI, Safronova VI, Tikhonovich IA, Vishnyakova MA, Semenova EV, Kosareva IA, Belimov AA. Aluminum exclusion from root zone and maintenance of nutrient uptake are principal mechanisms of Al tolerance in Pisum sativum L. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2017; 23:851-863. [PMID: 29158634 PMCID: PMC5671451 DOI: 10.1007/s12298-017-0469-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/21/2017] [Accepted: 09/11/2017] [Indexed: 05/29/2023]
Abstract
Our study aimed to evaluate intraspecific variability of pea (Pisum sativum L.) in Al tolerance and to reveal mechanisms underlying genotypic differences in this trait. At the first stage, 106 pea genotypes were screened for Al tolerance using root re-elongation assay based on staining with eriochrome cyanine R. The root re-elongation zone varied from 0.5 mm to 14 mm and relationships between Al tolerance and provenance or phenotypic traits of genotypes were found. Tolerance index (TI), calculated as a biomass ratio of Al-treated and non-treated contrasting genotypes grown in hydroponics for 10 days, varied from 30% to 92% for roots and from 38% to 90% for shoots. TI did not correlate with root or shoot Al content, but correlated positively with increasing pH and negatively with residual Al concentration in nutrient solution in the end of experiments. Root exudation of organic acid anions (mostly acetate, citrate, lactate, pyroglutamate, pyruvate and succinate) significantly increased in several Al-treated genotypes, but did not correlate with TI. Al-treatment decreased Ca, Co, Cu, K, Mg, Mn, Mo, Ni, S and Zn contents in roots and/or shoots, whereas contents of several elements (P, B, Fe and Mo in roots and B and Fe in shoots) increased, suggesting that Al toxicity induced substantial disturbances in uptake and translocation of nutrients. Nutritional disturbances were more pronounced in Al sensitive genotypes. In conclusion, pea has a high intraspecific variability in Al tolerance and this trait is associated with provenance and phenotypic properties of plants. Transformation of Al to unavailable (insoluble) forms in the root zone and the ability to maintain nutrient uptake are considered to be important mechanisms of Al tolerance in this plant species.
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Affiliation(s)
- Natalia E. Kichigina
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
| | - Jan V. Puhalsky
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
| | - Aleksander I. Shaposhnikov
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
| | - Tatiana S. Azarova
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
| | - Natalia M. Makarova
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
| | - Svyatoslav I. Loskutov
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
| | - Vera I. Safronova
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
| | - Igor A. Tikhonovich
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
- Saint-Petersburg State University, University Embankment, Saint-Petersburg, Russian Federation 199034
| | - Margarita A. Vishnyakova
- N.I. Vavilov Institute of Plant Genetic Resources, B. Morskaya Str. 42-44, Saint-Petersburg, Russian Federation 190000
| | - Elena V. Semenova
- N.I. Vavilov Institute of Plant Genetic Resources, B. Morskaya Str. 42-44, Saint-Petersburg, Russian Federation 190000
| | - Irina A. Kosareva
- N.I. Vavilov Institute of Plant Genetic Resources, B. Morskaya Str. 42-44, Saint-Petersburg, Russian Federation 190000
| | - Andrey A. Belimov
- All-Russia Research Institute for Agricultural Microbiology, Podbelskogo sh. 3, Pushkin, Saint-Petersburg, Russian Federation 196608
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81
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Chen WW, Xu JM, Jin JF, Lou HQ, Fan W, Yang JL. Genome-Wide Transcriptome Analysis Reveals Conserved and Distinct Molecular Mechanisms of Al Resistance in Buckwheat (Fagopyrum esculentum Moench) Leaves. Int J Mol Sci 2017; 18:ijms18091859. [PMID: 28846612 PMCID: PMC5618508 DOI: 10.3390/ijms18091859] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 08/16/2017] [Accepted: 08/17/2017] [Indexed: 11/16/2022] Open
Abstract
Being an Al-accumulating crop, buckwheat detoxifies and tolerates Al not only in roots but also in leaves. While much progress has recently been made toward Al toxicity and resistance mechanisms in roots, little is known about the molecular basis responsible for detoxification and tolerance processes in leaves. Here, we carried out transcriptome analysis of buckwheat leaves in response to Al stress (20 µM, 24 h). We obtained 33,931 unigenes with 26,300 unigenes annotated in the NCBI database, and identified 1063 upregulated and 944 downregulated genes under Al stress. Functional category analysis revealed that genes related to protein translation, processing, degradation and metabolism comprised the biological processes most affected by Al, suggesting that buckwheat leaves maintain flexibility under Al stress by rapidly reprogramming their physiology and metabolism. Analysis of genes related to transcription regulation revealed that a large proportion of chromatin-regulation genes are specifically downregulated by Al stress, whereas transcription factor genes are overwhelmingly upregulated. Furthermore, we identified 78 upregulated and 22 downregulated genes that encode transporters. Intriguingly, only a few genes were overlapped with root Al-regulated transporter genes, which include homologs of AtMATE, ALS1, STAR1, ALS3 and a divalent ion symporter. In addition, we identified a subset of genes involved in development, in which genes associated with flowering regulation were important. Based on these data, it is proposed that buckwheat leaves develop conserved and distinct mechanisms to cope with Al toxicity.
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Affiliation(s)
- Wei Wei Chen
- Research Centre for Plant RNA Signaling , College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China.
- Global Institute for Food Security, University of Saskatchewan, Saskatoon, SK S7N 4J8, Canada.
| | - Jia Meng Xu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Jian Feng Jin
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
| | - He Qiang Lou
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Wei Fan
- College of Resource and Environment, Yunnan Agricultural University, Kunming 650201, China.
| | - Jian Li Yang
- Global Institute for Food Security, University of Saskatchewan, Saskatoon, SK S7N 4J8, Canada.
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
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82
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Jiang F, Wang T, Wang Y, Kochian LV, Chen F, Liu J. Identification and characterization of suppressor mutants of stop1. BMC PLANT BIOLOGY 2017; 17:128. [PMID: 28738784 PMCID: PMC5525285 DOI: 10.1186/s12870-017-1079-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 07/20/2017] [Indexed: 05/06/2023]
Abstract
BACKGROUND Proton stress and aluminum (Al) toxicity are major constraints limiting crop growth and yields on acid soils (pH < 5). In Arabidopsis, STOP1 is a master transcription factor that controls the expression of a set of well-characterized Al tolerance genes and unknown processes involved in low pH resistance. As a result, loss-of-function stop1 mutants are extremely sensitive to low pH and Al stresses. RESULTS Here, we report on screens of an ethyl-methane sulphonate (EMS)-mutagenized stop1 population and isolation of nine strong stop1 suppressor mutants, i.e., the tolerant to proton stress (tps) mutants, with significantly enhanced root growth at low pH (4.3). Genetic analyses indicated these dominant and partial gain-of-function mutants are caused by mutations in single nuclear genes outside the STOP1 locus. Physiological characterization of the responses of these tps mutants to excess levels of Al and other metal ions further classified them into five groups. Three tps mutants also displayed enhanced resistance to Al stress, indicating that these tps mutations partially rescue the hypersensitive phenotypes of stop1 to both low pH stress and Al stress. The other six tps mutants showed enhanced resistance only to low pH stress but not to Al stress. We carried out further physiologic and mapping-by-sequencing analyses for two tps mutants with enhanced resistance to both low pH and Al stresses and identified the genomic regions and candidate loci in chromosomes 1 and 2 that harbor these two TPS genes. CONCLUSION We have identified and characterized nine strong stop1 suppressor mutants. Candidate loci for two tps mutations that partially rescue the hypersensitive phenotypes of stop1 to low pH and Al stresses were identified by mapping-by-sequencing approaches. Further studies could provide insights into the structure and function of TPSs and the regulatory networks underlying the STOP1-mediated processes that lead to resistance to low pH and Al stresses in Arabidopsis.
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Affiliation(s)
- Fei Jiang
- Robert W. Holley Center, US Department of Agriculture-Agricultural Research Service, Ithaca, NY 14853 USA
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan China
- College of Life Science, Sichuan University, Chengdu, Sichuan China
| | - Tao Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan China
| | - Yuqi Wang
- Robert W. Holley Center, US Department of Agriculture-Agricultural Research Service, Ithaca, NY 14853 USA
| | - Leon V. Kochian
- Global Institute for Food Security, University of Saskatchewan, Saskatoon, S7N 4J8 Canada
| | - Fang Chen
- College of Life Science, Sichuan University, Chengdu, Sichuan China
| | - Jiping Liu
- Robert W. Holley Center, US Department of Agriculture-Agricultural Research Service, Ithaca, NY 14853 USA
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Xu JM, Fan W, Jin JF, Lou HQ, Chen WW, Yang JL, Zheng SJ. Transcriptome Analysis of Al-Induced Genes in Buckwheat ( Fagopyrum esculentum Moench) Root Apex: New Insight into Al Toxicity and Resistance Mechanisms in an Al Accumulating Species. FRONTIERS IN PLANT SCIENCE 2017; 8:1141. [PMID: 28702047 PMCID: PMC5487443 DOI: 10.3389/fpls.2017.01141] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/14/2017] [Indexed: 05/06/2023]
Abstract
Relying on Al-activated root oxalate secretion, and internal detoxification and accumulation of Al, buckwheat is highly Al resistant. However, the molecular mechanisms responsible for these processes are still poorly understood. It is well-known that root apex is the critical region of Al toxicity that rapidly impairs a series of events, thus, resulting in inhibition of root elongation. Here, we carried out transcriptome analysis of the buckwheat root apex (0-1 cm) with regards to early response (first 6 h) to Al stress (20 μM), which is crucial for identification of both genes and processes involved in Al toxicity and tolerance mechanisms. We obtained 34,469 unigenes with 26,664 unigenes annotated in the NCBI database, and identified 589 up-regulated and 255 down-regulated differentially expressed genes (DEGs) under Al stress. Functional category analysis revealed that biological processes differ between up- and down-regulated genes, although 'metabolic processes' were the most affected category in both up- and down-regulated DEGs. Based on the data, it is proposed that Al stress affects a variety of biological processes that collectively contributes to the inhibition of root elongation. We identified 30 transporter genes and 27 transcription factor (TF) genes induced by Al. Gene homology analysis highlighted candidate genes encoding transporters associated with Al uptake, transport, detoxification, and accumulation. We also found that TFs play critical role in transcriptional regulation of Al resistance genes in buckwheat. In addition, gene duplication events are very common in the buckwheat genome, suggesting a possible role for gene duplication in the species' high Al resistance. Taken together, the transcriptomic analysis of buckwheat root apex shed light on the processes that contribute to the inhibition of root elongation. Furthermore, the comprehensive analysis of both transporter genes and TF genes not only deep our understanding on the responses of buckwheat roots to Al toxicity but provide a good start for functional characterization of genes critical for Al tolerance.
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Affiliation(s)
- Jia Meng Xu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang UniversityHangzhou, China
| | - Wei Fan
- College of Resources and Environment, Yunnan Agricultural UniversityKunming, China
| | - Jian Feng Jin
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang UniversityHangzhou, China
| | - He Qiang Lou
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang UniversityHangzhou, China
| | - Wei Wei Chen
- Institute of Life Sciences, College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China
- Global Institute for Food Security, University of Saskatchewan, SaskatoonSK, Canada
| | - Jian Li Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang UniversityHangzhou, China
- Global Institute for Food Security, University of Saskatchewan, SaskatoonSK, Canada
| | - Shao Jian Zheng
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang UniversityHangzhou, China
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84
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Liu X, Lin Y, Liu D, Wang C, Zhao Z, Cui X, Liu Y, Yang Y. MAPK-mediated auxin signal transduction pathways regulate the malic acid secretion under aluminum stress in wheat (Triticum aestivum L.). Sci Rep 2017; 7:1620. [PMID: 28487539 PMCID: PMC5431644 DOI: 10.1038/s41598-017-01803-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 04/05/2017] [Indexed: 01/17/2023] Open
Abstract
An isobaric tags for relative and absolute quantitative (iTRAQ)-based quantitative proteomic approach was used to screen the differentially expressed proteins during control treatment (CK), aluminum (Al) and Al+ indole-3-acetic acid (IAA) treatment of wheat lines ET8 (Al-tolerant). Further, the the expression levels of auxin response factor (ARF), Aux/IAA, Mitogen activated protein kinase (MAPK) 2c, and MAPK1a were analyzed. Results showed that 16 proteins were determined to be differentially expressed in response to Al and IAA co-treatment compared with Al alone. Among them, MAPK2c and MAPK1a proteins displayed markedly differential expression during the processes. The expression of ARF2 was upregulated and Aux/IAA was downregulated by Al, while both in concentration- and time-dependent manners. Western-blot detection of MAPK2c and MAPK1a indicated that Al upregulated MAPK2c and downregulated MAPK1a in both concentration- and time-dependent manners. Exogenous IAA could promote the expression of MAPK2c, but inhibit the expression of MAPK1a in the presence/absence of Al. These findings indicated that IAA acted as one of the key signaling molecule controls the response mechanism of wheat malic acid efflux to Al stress through the suppression/activation of Aux/IAA and ARFs, and the activity of MAPK2c and MAPK1a were positively or negatively regulated.
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Affiliation(s)
- Xinwei Liu
- Yunnan Provincial Key Laboratory of Panax notoginseng, Key Laboratory of Panax notoginseng Resources Sustainable Development and Utilization of State Administration of Traditional Chinese Medicine, Kunming Key Laboratory of Sustainable Development and Utilization of Famous-Region Drug, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.,Centre for Microelement Research of Huazhong Agricultural University, Wuhan, 430070, China
| | - Yameng Lin
- Yunnan Provincial Key Laboratory of Panax notoginseng, Key Laboratory of Panax notoginseng Resources Sustainable Development and Utilization of State Administration of Traditional Chinese Medicine, Kunming Key Laboratory of Sustainable Development and Utilization of Famous-Region Drug, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.,Centre for Microelement Research of Huazhong Agricultural University, Wuhan, 430070, China
| | - Diqiu Liu
- Yunnan Provincial Key Laboratory of Panax notoginseng, Key Laboratory of Panax notoginseng Resources Sustainable Development and Utilization of State Administration of Traditional Chinese Medicine, Kunming Key Laboratory of Sustainable Development and Utilization of Famous-Region Drug, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Chengxiao Wang
- Yunnan Provincial Key Laboratory of Panax notoginseng, Key Laboratory of Panax notoginseng Resources Sustainable Development and Utilization of State Administration of Traditional Chinese Medicine, Kunming Key Laboratory of Sustainable Development and Utilization of Famous-Region Drug, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zhuqing Zhao
- Centre for Microelement Research of Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiuming Cui
- Yunnan Provincial Key Laboratory of Panax notoginseng, Key Laboratory of Panax notoginseng Resources Sustainable Development and Utilization of State Administration of Traditional Chinese Medicine, Kunming Key Laboratory of Sustainable Development and Utilization of Famous-Region Drug, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Ying Liu
- Yunnan Provincial Key Laboratory of Panax notoginseng, Key Laboratory of Panax notoginseng Resources Sustainable Development and Utilization of State Administration of Traditional Chinese Medicine, Kunming Key Laboratory of Sustainable Development and Utilization of Famous-Region Drug, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Ye Yang
- Yunnan Provincial Key Laboratory of Panax notoginseng, Key Laboratory of Panax notoginseng Resources Sustainable Development and Utilization of State Administration of Traditional Chinese Medicine, Kunming Key Laboratory of Sustainable Development and Utilization of Famous-Region Drug, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.
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85
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NIP1;2 is a plasma membrane-localized transporter mediating aluminum uptake, translocation, and tolerance in Arabidopsis. Proc Natl Acad Sci U S A 2017; 114:5047-5052. [PMID: 28439024 DOI: 10.1073/pnas.1618557114] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Members of the aquaporin (AQP) family have been suggested to transport aluminum (Al) in plants; however, the Al form transported by AQPs and the roles of AQPs in Al tolerance remain elusive. Here we report that NIP1;2, a plasma membrane-localized member of the Arabidopsis nodulin 26-like intrinsic protein (NIP) subfamily of the AQP family, facilitates Al-malate transport from the root cell wall into the root symplasm, with subsequent Al xylem loading and root-to-shoot translocation, which are critical steps in an internal Al tolerance mechanism in Arabidopsis We found that NIP1;2 transcripts are expressed mainly in the root tips, and that this expression is enhanced by Al but not by other metal stresses. Mutations in NIP1;2 lead to hyperaccumulation of toxic Al3+ in the root cell wall, inhibition of root-to-shoot Al translocation, and a significant reduction in Al tolerance. NIP1;2 facilitates the transport of Al-malate, but not Al3+ ions, in both yeast and Arabidopsis We demonstrate that the formation of the Al-malate complex in the root tip apoplast is a prerequisite for NIP1;2-mediated Al removal from the root cell wall, and that this requires a functional root malate exudation system mediated by the Al-activated malate transporter, ALMT1. Taken together, these findings reveal a critical linkage between the previously identified Al exclusion mechanism based on root malate release and an internal Al tolerance mechanism identified here through the coordinated function of NIP1;2 and ALMT1, which is required for Al removal from the root cell wall, root-to-shoot Al translocation, and overall Al tolerance in Arabidopsis.
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86
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Ligaba-Osena A, Fei Z, Liu J, Xu Y, Shaff J, Lee SC, Luan S, Kudla J, Kochian L, Piñeros M. Loss-of-function mutation of the calcium sensor CBL1 increases aluminum sensitivity in Arabidopsis. THE NEW PHYTOLOGIST 2017; 214:830-841. [PMID: 28150888 DOI: 10.1111/nph.14420] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 12/01/2016] [Indexed: 05/11/2023]
Abstract
Despite the physiological importance of aluminum (Al) phytotoxicity for plants, it remained unknown if, and how, calcineurin B-like calcium sensors (CBLs) and CBL-interacting protein kinases (CIPKs) are involved in Al resistance. We performed a comparative physiological and whole transcriptome investigation of an Arabidopsis CBL1 mutant (cbl1) and the wild-type (WT). cbl1 plants exudated less Al-chelating malate, accumulated more Al, and displayed a severe root growth reduction in response to Al. Genes involved in metabolism, transport, cell wall modification, transcription and oxidative stress were differentially regulated between the two lines, under both control and Al stress treatments. Exposure to Al resulted in up-regulation of a large set of genes only in WT and not cbl1 shoots, while a different set of genes were down-regulated in cbl1 but not in WT roots. These differences allowed us, for the first time, to define a calcium-regulated/dependent transcriptomic network for Al stress responses. Our analyses reveal not only the fundamental role of CBL1 in the adjustment of central transcriptomic networks involved in maintaining adequate physiological homeostasis processes, but also that a high shoot-root dynamics is required for the proper deployment of Al resistance responses in the root.
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Affiliation(s)
- Ayalew Ligaba-Osena
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, 14853, USA
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, NY, 14853, USA
| | - Jiping Liu
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, 14853, USA
| | - Yimin Xu
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, NY, 14853, USA
| | - Jon Shaff
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, 14853, USA
| | - Sung-Chul Lee
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA
- Department of Life Science, Chung-Ang University, Seoul, 06974, Korea
| | - Sheng Luan
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA
| | - Jörg Kudla
- Westfälische Wilhelms-Universität Münster, Institut für Biologie und Biotechnologie der Pflanzen, Schlossplatz 7, 48149, Münster, Germany
| | - Leon Kochian
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, 14853, USA
| | - Miguel Piñeros
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, 14853, USA
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87
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Dmitriev AA, Krasnov GS, Rozhmina TA, Kishlyan NV, Zyablitsin AV, Sadritdinova AF, Snezhkina AV, Fedorova MS, Yurkevich OY, Muravenko OV, Bolsheva NL, Kudryavtseva AV, Melnikova NV. Glutathione S-transferases and UDP-glycosyltransferases Are Involved in Response to Aluminum Stress in Flax. FRONTIERS IN PLANT SCIENCE 2016; 7:1920. [PMID: 28066475 PMCID: PMC5174120 DOI: 10.3389/fpls.2016.01920] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 12/02/2016] [Indexed: 05/19/2023]
Abstract
About 30% of the world's ice-free land area is occupied by acid soils. In soils with pH below 5, aluminum (Al) releases to the soil solution, and becomes highly toxic for plants. Therefore, breeding of varieties that are resistant to Al is needed. Flax (Linum usitatissimum L.) is grown worldwide for fiber and seed production. Al toxicity in acid soils is a serious problem for flax cultivation. However, very little is known about mechanisms of flax resistance to Al and the genetics of this resistance. In the present work, we sequenced 16 transcriptomes of flax cultivars resistant (Hermes and TMP1919) and sensitive (Lira and Orshanskiy) to Al, which were exposed to control conditions and aluminum treatment for 4, 12, and 24 h. In total, 44.9-63.3 million paired-end 100-nucleotide reads were generated for each sequencing library. Based on the obtained high-throughput sequencing data, genes with differential expression under aluminum exposure were revealed in flax. The majority of the top 50 up-regulated genes were involved in transmembrane transport and transporter activity in both the Al-resistant and Al-sensitive cultivars. However, genes encoding proteins with glutathione transferase and UDP-glycosyltransferase activity were in the top 50 up-regulated genes only in the flax cultivars resistant to aluminum. For qPCR analysis in extended sampling, two UDP-glycosyltransferases (UGTs), and three glutathione S-transferases (GSTs) were selected. The general trend of alterations in the expression of the examined genes was the up-regulation under Al stress, especially after 4 h of Al exposure. Moreover, in the flax cultivars resistant to aluminum, the increase in expression was more pronounced than that in the sensitive cultivars. We speculate that the defense against the Al toxicity via GST antioxidant activity is the probable mechanism of the response of flax plants to aluminum stress. We also suggest that UGTs could be involved in cell wall modification and protection from reactive oxygen species (ROS) in response to Al stress in L. usitatissimum. Thus, GSTs and UGTs, probably, play an important role in the response of flax to Al via detoxification of ROS and cell wall modification.
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Affiliation(s)
- Alexey A. Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
| | - George S. Krasnov
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
| | - Tatiana A. Rozhmina
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
- All-Russian Research Institute for FlaxTorzhok, Russia
| | | | | | - Asiya F. Sadritdinova
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
| | | | - Maria S. Fedorova
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
| | - Olga Y. Yurkevich
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
| | - Olga V. Muravenko
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
| | - Nadezhda L. Bolsheva
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
| | - Anna V. Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
| | - Nataliya V. Melnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of SciencesMoscow, Russia
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88
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Kopittke PM. Role of phytohormones in aluminium rhizotoxicity. PLANT, CELL & ENVIRONMENT 2016; 39:2319-28. [PMID: 27352002 DOI: 10.1111/pce.12786] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 06/16/2016] [Accepted: 06/19/2016] [Indexed: 05/06/2023]
Abstract
Elevated concentrations of soluble aluminium (Al) reduce root growth in acid soils, but much remains unknown regarding the toxicity of this Al as well as the mechanisms by which plants respond. This review examines changes in phytohormones in Al-stressed plants. Al often results in a rapid 'burst' of ethylene in root apical tissues within 15-30 min, with this regulating an increase in auxin. This production of ethylene and auxin seems to be a component of a plant-response to toxic Al, resulting in cell wall modification or regulation of organic acid release. There is also evidence of a role of auxin in the expression of Al toxicity itself, with Al decreasing basipetal transport of auxin, thereby potentially decreasing wall loosening as required for elongation. Increasingly, changes in abscisic acid in root apices also seem to be involved in plant-responses to toxic Al. Changes in cytokinins, gibberellins and jasmonates following exposure to Al are also examined, although little information is available. Finally, although not a phytohormone, concentrations of nitric oxide change rapidly in Al-exposed tissues. The information presented in this review will assist in focusing future research efforts in examining the importance of phytohormones in plant tissues exposed to toxic levels of Al.
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Affiliation(s)
- Peter M Kopittke
- The University of Queensland, School of Agriculture and Food Sciences, St Lucia, QLD, 4072, Australia.
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89
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Poot-Poot W, Rodas-Junco BA, Muñoz-Sánchez JA, Hernández-Sotomayor SMT. Protoplasts: a friendly tool to study aluminum toxicity and coffee cell viability. SPRINGERPLUS 2016; 5:1452. [PMID: 27652028 PMCID: PMC5005246 DOI: 10.1186/s40064-016-3140-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 08/23/2016] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Aluminum toxicity is a major limiting factor with regard to crop production and quality in most acidic soils around the world. We propose the use of C. arabica L. protoplasts to evaluate the toxic effects of aluminum, the nuclear localization of aluminum and propensity of aluminum to cause DNA damage. RESULTS After protoplasts were exposed to aluminum (Al) for varying periods of time (0, 5, 10, 20 and 30 min), we detected a reduction in protoplast viability. Additionally, we observed a rapid decline in the ability of protoplasts to synthesize DNA following exposure to Al for 30 min. Furthermore, DNA damage was observed after 10 min of treatment with Al. CONCLUSIONS Protoplasts can be used to evaluate the effects of Al upon entry into the cell, which affects the structure of the nucleus. These results indicate that protoplasts provide a useful model for the study Al toxicity at the cellular level.
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Affiliation(s)
- Wilberth Poot-Poot
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán (CICY), Calle 43 No. 130, Col. Chuburná de Hidalgo, 97205 Mérida, YUC Mexico
| | - Beatriz A. Rodas-Junco
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán (CICY), Calle 43 No. 130, Col. Chuburná de Hidalgo, 97205 Mérida, YUC Mexico
- CONACYT, Facultad de Ingeniería Química, Campus de Ciencias Exactas e Ingeniería, Universidad Autónoma de Yucatán, Periférico Norte, Km 33.5, Tablaje catastral 13615 Col Chuburná de Hidalgo, 97203 Mérida, YUC Mexico
| | - J. Armando Muñoz-Sánchez
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán (CICY), Calle 43 No. 130, Col. Chuburná de Hidalgo, 97205 Mérida, YUC Mexico
| | - S. M. Teresa Hernández-Sotomayor
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán (CICY), Calle 43 No. 130, Col. Chuburná de Hidalgo, 97205 Mérida, YUC Mexico
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90
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Kopittke PM, Menzies NW, Wang P, Blamey FPC. Kinetics and nature of aluminium rhizotoxic effects: a review. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:4451-67. [PMID: 27302129 DOI: 10.1093/jxb/erw233] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Acid soils with elevated levels of soluble aluminium (Al) comprise ~40% of the world's arable land, but there remains much uncertainty regarding the mechanisms by which Al is rhizotoxic. This review examines the kinetics of the toxic effects of Al on the root elongation rate (RER), its effects on root tissues, and its location at a subcellular level. Depending upon the concentration and plant species, soluble Al decreases the RER in a median time of 73min, but in as little as 5min in soybean. This is initially due to a decreased rate at which cells expand anisotropically in the elongation zone. Thereafter, rhizodermal and outer cortical cells rupture through decreased cell wall relaxation. It is in this region where most Al accumulates in the apoplast. Subsequently, Al impacts root growth at a subcellular level through adverse effects on the plasma membrane (PM), cytoplasm, and nucleus. At the PM, Al alters permeability, fluidity, and integrity in as little as 0.5h, whilst it also depolarizes the PM and reduces H(+)-ATPase activity. The Al potentially crosses the PM within 0.5h where it is able to bind to the nucleus and inhibit cell division; sequestration within the vacuole is required to reduce the toxic effects of Al within the cytoplasm. This review demonstrates the increasing evidence of the importance of the initial Al-induced inhibition of wall loosening, but there is evidence also of the deleterious effects of Al on other cellular processes which are important for long-term root growth and function.
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Affiliation(s)
- Peter M Kopittke
- The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland 4072, Australia
| | - Neal W Menzies
- The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland 4072, Australia
| | - Peng Wang
- The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland 4072, Australia
| | - F Pax C Blamey
- The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland 4072, Australia
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91
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Aluminum Toxicity-Induced Alterations of Leaf Proteome in Two Citrus Species Differing in Aluminum Tolerance. Int J Mol Sci 2016; 17:ijms17071180. [PMID: 27455238 PMCID: PMC4964550 DOI: 10.3390/ijms17071180] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/13/2016] [Accepted: 07/13/2016] [Indexed: 11/17/2022] Open
Abstract
Seedlings of aluminum-tolerant ‘Xuegan’ (Citrus sinensis) and Al-intolerant ‘sour pummelo’ (Citrus grandis) were fertigated for 18 weeks with nutrient solution containing 0 and 1.2 mM AlCl3·6H2O. Al toxicity-induced inhibition of photosynthesis and the decrease of total soluble protein only occurred in C. grandis leaves, demonstrating that C. sinensis had higher Al tolerance than C. grandis. Using isobaric tags for relative and absolute quantification (iTRAQ), we obtained more Al toxicity-responsive proteins from C. sinensis than from C. grandis leaves, which might be responsible for the higher Al tolerance of C. sinensis. The following aspects might contribute to the Al tolerance of C. sinensis: (a) better maintenance of photosynthesis and energy balance via inducing photosynthesis and energy-related proteins; (b) less increased requirement for the detoxification of reactive oxygen species and other toxic compounds, such as aldehydes, and great improvement of the total ability of detoxification; and (c) upregulation of low-phosphorus-responsive proteins. Al toxicity-responsive proteins related to RNA regulation, protein metabolism, cellular transport and signal transduction might also play key roles in the higher Al tolerance of C. sinensis. We present the global picture of Al toxicity-induced alterations of protein profiles in citrus leaves, and identify some new Al toxicity-responsive proteins related to various biological processes. Our results provide some novel clues about plant Al tolerance.
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92
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Moustaka J, Ouzounidou G, Bayçu G, Moustakas M. Aluminum resistance in wheat involves maintenance of leaf Ca(2+) and Mg(2+) content, decreased lipid peroxidation and Al accumulation, and low photosystem II excitation pressure. Biometals 2016; 29:611-23. [PMID: 27188757 DOI: 10.1007/s10534-016-9938-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 05/11/2016] [Indexed: 11/30/2022]
Abstract
The phytotoxic aluminum species (Al(3+)) is considered as the primary factor limiting crop productivity in over 40 % of world's arable land that is acidic. We evaluated the responses of two wheat cultivars (Triticum aestivum L.) with differential Al resistance, cv. Yecora E (Al-resistant) and cv. Dio (Al-sensitive), exposed to 0, 37, 74 and 148 μM Al for 14 days in hydroponic culture at pH 4.5. With increasing Al concentration, leaf Ca(2+) and Mg(2+) content decreased, as well as the effective quantum yield of photosystem II (PSII) photochemistry (Φ PSII ), while a gradual increase in leaf membrane lipid peroxidation, Al accumulation, photoinhibition (estimated as F v /F m ), and PSII excitation pressure (1 - q p ) occurred. However, the Al-resistant cultivar with lower Al accumulation, retained larger concentrations of Ca(2+) and Mg(2+) in the leaves and kept a larger fraction of the PSII reaction centres (RCs) in an open configuration, i.e. a higher ratio of oxidized to reduced quinone A (QA), than plants of the Al-sensitive cultivar. Four times higher Al concentration in the nutrient solution was required for Al-resistant plants (148 μM Al) than for Al-sensitive (37 μM Al), in order to establish the same closed RCs. Yet, the decline in photosynthetic efficiency in the cultivar Dio was not only due to closure of PSII RCs but also to a decrease in the quantum yield of the open RCs. We suggest that Al(3+) toxicity may be mediated by nutrient deficiency and oxidative stress, and that Al-resistance of the wheat cultivar Yecora E, may be due at least partially, from the decreased Al accumulation that resulted to decreased reactive oxygen species (ROS) formation. However, under equal internal Al accumulation (exposure Al concentration: Dio 74 μM, Yecora E 148 μM) that resulted to the same oxidative stress, the reduced PSII excitation pressure and the better PSII functioning of the Al-resistant cultivar was probably due to the larger concentrations of Ca(2+) and Mg(2+) in the leaves. We propose that the different sensitivities of wheat cultivars to Al(3+) toxicity can be correlated to differences in the redox state of QA. Thus, chlorophyll fluorescence measurements can be a promising tool for rapid screening of Al resistance in wheat cultivars.
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Affiliation(s)
- Julietta Moustaka
- Department of Botany, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.,Department of Biology, University of Crete, Voutes University Campus, 70013, Heraklion, Crete, Greece
| | - Georgia Ouzounidou
- Institute of Food Technology, Hellenic Agricultural Organization-Demeter, 1 S. Venizelou str., 14123, Lycovrissi, Greece
| | - Gülriz Bayçu
- Division of Botany, Department of Biology, Faculty of Science, Istanbul University, 34134, Istanbul, Turkey
| | - Michael Moustakas
- Department of Botany, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece. .,Division of Botany, Department of Biology, Faculty of Science, Istanbul University, 34134, Istanbul, Turkey.
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93
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Zhou S, Okekeogbu I, Sangireddy S, Ye Z, Li H, Bhatti S, Hui D, McDonald DW, Yang Y, Giri S, Howe KJ, Fish T, Thannhauser TW. Proteome Modification in Tomato Plants upon Long-Term Aluminum Treatment. J Proteome Res 2016; 15:1670-84. [DOI: 10.1021/acs.jproteome.6b00128] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Suping Zhou
- Department
of Agricultural and Environmental Sciences, College of Agriculture,
Human and Natural Sciences, Tennessee State University, 3500 John
A Merritt Blvd, Nashville, Tennessee 37209, United States
| | - Ikenna Okekeogbu
- Department
of Agricultural and Environmental Sciences, College of Agriculture,
Human and Natural Sciences, Tennessee State University, 3500 John
A Merritt Blvd, Nashville, Tennessee 37209, United States
| | - Sasikiran Sangireddy
- Department
of Agricultural and Environmental Sciences, College of Agriculture,
Human and Natural Sciences, Tennessee State University, 3500 John
A Merritt Blvd, Nashville, Tennessee 37209, United States
| | - Zhujia Ye
- Department
of Agricultural and Environmental Sciences, College of Agriculture,
Human and Natural Sciences, Tennessee State University, 3500 John
A Merritt Blvd, Nashville, Tennessee 37209, United States
| | - Hui Li
- Department
of Agricultural and Environmental Sciences, College of Agriculture,
Human and Natural Sciences, Tennessee State University, 3500 John
A Merritt Blvd, Nashville, Tennessee 37209, United States
| | - Sarabjit Bhatti
- Department
of Agricultural and Environmental Sciences, College of Agriculture,
Human and Natural Sciences, Tennessee State University, 3500 John
A Merritt Blvd, Nashville, Tennessee 37209, United States
| | - Dafeng Hui
- Department
of Agricultural and Environmental Sciences, College of Agriculture,
Human and Natural Sciences, Tennessee State University, 3500 John
A Merritt Blvd, Nashville, Tennessee 37209, United States
| | - Daniel W. McDonald
- Phenotype Screening Corporation, 4028 Papermill Road, Knoxville, Tennessee 37909, United States
| | - Yong Yang
- RW Holley
Center for Agriculture and Health, Plant, Soil and Nutrition Research Unit, USDA-ARS, Tower Rd, Ithaca, New York 14853, United States
| | - Shree Giri
- RW Holley
Center for Agriculture and Health, Plant, Soil and Nutrition Research Unit, USDA-ARS, Tower Rd, Ithaca, New York 14853, United States
| | - Kevin J. Howe
- RW Holley
Center for Agriculture and Health, Plant, Soil and Nutrition Research Unit, USDA-ARS, Tower Rd, Ithaca, New York 14853, United States
| | - Tara Fish
- RW Holley
Center for Agriculture and Health, Plant, Soil and Nutrition Research Unit, USDA-ARS, Tower Rd, Ithaca, New York 14853, United States
| | - Theodore W. Thannhauser
- RW Holley
Center for Agriculture and Health, Plant, Soil and Nutrition Research Unit, USDA-ARS, Tower Rd, Ithaca, New York 14853, United States
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94
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Xu Q, Wang Y, Ding Z, Song L, Li Y, Ma D, Wang Y, Shen J, Jia S, Sun H, Zhang H. Aluminum induced metabolic responses in two tea cultivars. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 101:162-172. [PMID: 26895429 DOI: 10.1016/j.plaphy.2016.02.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 01/28/2016] [Accepted: 02/03/2016] [Indexed: 05/20/2023]
Abstract
Tea [Camellia sinensis (L.)], is an aluminum (Al(3+)) hyperaccumulator plant and grows well in acid soils. In the present study, roots of two tea cultivars, JHC and YS were treated with different concentrations of Al(3+). After treatments, the root length, dry matter, root activity and chlorophyll content (SPAD value) of JHC had greater increase than that of YS. We also detected metabolic changes of two varieties using GC-MS method. Comparison between two cultivars indicated that shikimic pathway was more enhanced in YS roots by Al(3+) with higher levels of catechine, quinic acid and shikimic acid. While, more active amino acid synthesis was found in JHC roots and JHC leaves remained the higher level contents of metabolites related to cysteine synthesis. The comparison also showed that a large amount of sugar alcohols were accumulated in roots of two varieties, whereas most of them were reduced in YS leaves. Other well-known ligands, such as phosphoric acid and malic acid were observed in two cultivars that showed significantly altered abundances under Al(3+) treatments. The results indicated that Al(3+) adaptation of two cultivars may be correlated with their differential metabolism of amino acids, sugars and shikimic acids.
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Affiliation(s)
- Qingshan Xu
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China; State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China
| | - Yu Wang
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Zhaotang Ding
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China.
| | - Lubin Song
- Institue of Pomology, Shandong Academy of Agricultural Sciences, Taian 271000, China
| | - Yusheng Li
- Fruit and Tea Technology Extension Station, Jinan 250013, Shandong Province, China
| | - Dexin Ma
- Communication College, Qingdao Agricultural University, Qingdao 266109, China
| | - Yi Wang
- Qingdao Fruits, Tea and Flowers Workstation, Qingdao City, Qingdao 266071, China
| | - Jiazhi Shen
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Sisi Jia
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Haiwei Sun
- Taishan Academy of Forestry Sciences, Taian City, Taian 271000, China
| | - Hong Zhang
- Taishan Academy of Forestry Sciences, Taian City, Taian 271000, China
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95
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Zhang M, Deng X, Yin L, Qi L, Wang X, Wang S, Li H. Regulation of Galactolipid Biosynthesis by Overexpression of the Rice MGD Gene Contributes to Enhanced Aluminum Tolerance in Tobacco. FRONTIERS IN PLANT SCIENCE 2016; 7:337. [PMID: 27066017 PMCID: PMC4811928 DOI: 10.3389/fpls.2016.00337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 03/04/2016] [Indexed: 05/18/2023]
Abstract
Membrane lipid alterations affect Al tolerance in plants, but little is known about the regulation of membrane lipid metabolism in response to Al stress. Transgenic tobacco (Nicotiana tabacum) overexpressing rice monogalactosyldiacylglycerol (MGDG) synthase (OsMGD) gene and wild-type tobacco plants were exposed to AlCl3, and the impact of Al toxicity on root growth, Al accumulation, plasma membrane integrity, lipid peroxidation and membrane lipid composition were investigated. Compared with the wild type, the transgenic plants exhibited rapid regrowth of roots after removal of Al and less damage to membrane integrity and lipid peroxidation under Al stress, meanwhile, the Al accumulation showed no difference between wild-type and transgenic plants. Lipid analysis showed that Al treatment dramatically decreased the content of MGDG and the ratio of MGDG to digalactosyldiacylglycerol (DGDG) in wild-type plants, while it was unchanged in transgenic plants. The stable of MGDG level and the ratio of MGDG/DGDG contribute to maintain the membrane stability and permeability. Moreover, Al caused a significant increase in phospholipids in wild-type plants, resulting in a high proportion of phospholipids and low proportion of galactolipids, but these proportions were unaffected in transgenic plants. The high proportion of phospholipids could contribute to a higher rate of Al(3+) binding in the membrane and thereby leads to more membrane perturbation and damage. These results show that the regulation of galactolipid biosynthesis could play an important role in maintaining membrane structure and function under Al stress.
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Affiliation(s)
- Meijuan Zhang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F UniversityYangling, China
- College of Life Sciences, Northwest A&F UniversityYangling, China
| | - Xiping Deng
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F UniversityYangling, China
- College of Life Sciences, Northwest A&F UniversityYangling, China
- Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water ResourcesYangling, China
| | - Lina Yin
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F UniversityYangling, China
- Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water ResourcesYangling, China
- College of Natural Resources and Environment, Northwest A&F UniversityYangling, China
| | - Lingyun Qi
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F UniversityYangling, China
- College of Natural Resources and Environment, Northwest A&F UniversityYangling, China
| | - Xinyue Wang
- Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water ResourcesYangling, China
| | - Shiwen Wang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F UniversityYangling, China
- Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water ResourcesYangling, China
| | - Hongbing Li
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F UniversityYangling, China
- Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water ResourcesYangling, China
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96
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97
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Sun C, Lu L, Yu Y, Liu L, Hu Y, Ye Y, Jin C, Lin X. Decreasing methylation of pectin caused by nitric oxide leads to higher aluminium binding in cell walls and greater aluminium sensitivity of wheat roots. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:979-89. [PMID: 26663393 PMCID: PMC4737084 DOI: 10.1093/jxb/erv514] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nitric oxide (NO) is an important bioactive molecule involved in cell wall metabolism, which has been recognized as a major target of aluminium (Al) toxicity. We have investigated the effects of Al-induced NO production on cell wall composition and the subsequent Al-binding capacity in roots of an Al-sensitive cultivar of wheat (Triticum aestivum L. cv. Yang-5). We found that Al exposure induced NO accumulation in the root tips. Eliminating NO production with an NO scavenger (cPTIO) significantly alleviated the Al-induced inhibition of root growth and thus reduced Al accumulation. Elimination of NO, however, did not significantly affect malate efflux or rhizosphere pH changes under Al exposure. Levels of cell wall polysaccharides (pectin, hemicelluloses 1, and hemicelluloses 2) and pectin methylesterase activity, as well as pectin demethylation in the root apex, significantly increased under Al treatment. Exogenous cPTIO application significantly decreased pectin methylesterase activity and increased the degree of methylation of pectin in the root cell wall, thus decreasing the Al-binding capacity of pectin. These results suggest that the Al-induced enhanced production of NO decreases cell wall pectin methylation, thus increasing the Al-binding capacity of pectin and negatively regulating Al tolerance in wheat.
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Affiliation(s)
- Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Lingli Lu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yan Yu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Lijuan Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yan Hu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yiquan Ye
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Chongwei Jin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, PR China Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, PR China Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
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98
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Yu Y, Jin C, Sun C, Wang J, Ye Y, Zhou W, Lu L, Lin X. Inhibition of ethylene production by putrescine alleviates aluminium-induced root inhibition in wheat plants. Sci Rep 2016; 6:18888. [PMID: 26744061 PMCID: PMC4705537 DOI: 10.1038/srep18888] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 11/27/2015] [Indexed: 11/18/2022] Open
Abstract
Inhibition of root elongation is one of the most distinct symptoms of aluminium (Al) toxicity. Although putrescine (Put) has been identified as an important signaling molecule involved in Al tolerance, it is yet unknown how Put mitigates Al-induced root inhibition. Here, the possible mechanism was investigated by using two wheat genotypes differing in Al resistance: Al-tolerant Xi Aimai-1 and Al-sensitive Yangmai-5. Aluminium caused more root inhibition in Yangmai-5 and increased ethylene production at the root apices compared to Xi Aimai-1, whereas the effects were significantly reversed by ethylene biosynthesis inhibitors. The simultaneous exposure of wheat seedlings to Al and ethylene donor, ethephon, or ethylene biosynthesis precursor, 1-aminocyclopropane-1-carboxylic acid (ACC), increased ethylene production and aggravated root inhibition, which was more pronounced in Xi Aimai-1. In contrast, Put treatment decreased ethylene production and alleviated Al-induced root inhibition in both genotypes, and the effects were more conspicuous in Yangmai-5. Furthermore, our results indicated that Al-induced ethylene production was mediated by ACC synthase (ACS) and ACC oxidase, and that Put decreased ethylene production by inhibiting ACS. Altogether, these findings indicate that ethylene is involved in Al-induced root inhibition and this process could be alleviated by Put through inhibiting ACS activity.
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Affiliation(s)
- Yan Yu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chongwei Jin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | | | - Yiquan Ye
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Weiwei Zhou
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lingli Lu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
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99
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Yu W, Kan Q, Zhang J, Zeng B, Chen Q. Role of the plasma membrane H(+)-ATPase in the regulation of organic acid exudation under aluminum toxicity and phosphorus deficiency. PLANT SIGNALING & BEHAVIOR 2016; 11:e1106660. [PMID: 26713714 PMCID: PMC4871650 DOI: 10.1080/15592324.2015.1106660] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 10/01/2015] [Accepted: 10/05/2015] [Indexed: 05/19/2023]
Abstract
Aluminum (Al) toxicity and phosphorus (P) deficiency are 2 major limiting factors for plant growth and crop production in acidic soils. Organic acids exuded from roots have been generally regarded as a major resistance mechanism to Al toxicity and P deficiency. The exudation of organic acids is mediated by membrane-localized OA transporters, such as ALMT (Al-activated malate transporter) and MATE (multidrug and toxic compound extrusion). Beside on up-regulation expression of organic acids transporter gene, transcriptional, translational and post-translational regulation of the plasma membrane H(+)-ATPase are also involved in organic acid release process under Al toxicity and P deficiency. This mini-review summarizes the current knowledge about this field of study on the role of the plasma membrane H(+)-ATPase in organic acid exudation under Al toxicity and P deficiency conditions.
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Affiliation(s)
- Wenqian Yu
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
| | - Qi Kan
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
| | - Jiarong Zhang
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
| | - Bingjie Zeng
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
| | - Qi Chen
- Faculty of Life Science and Biotechnology; Kunming University of Science and Technology; Kunming, China
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100
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Jiang HX, Yang LT, Qi YP, Lu YB, Huang ZR, Chen LS. Root iTRAQ protein profile analysis of two Citrus species differing in aluminum-tolerance in response to long-term aluminum-toxicity. BMC Genomics 2015; 16:949. [PMID: 26573913 PMCID: PMC4647617 DOI: 10.1186/s12864-015-2133-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 10/23/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Limited information is available on aluminum (Al)-toxicity-responsive proteins in woody plant roots. Seedlings of 'Xuegan' (Citrus sinensis) and 'Sour pummelo' (Citrus grandis) were treated for 18 weeks with nutrient solution containing 0 (control) or 1.2 mM AlCl3 · 6H2O (+Al). Thereafter, we investigated Citrus root protein profiles using isobaric tags for relative and absolute quantification (iTRAQ). The aims of this work were to determine the molecular mechanisms of plants to deal with Al-toxicity and to identify differentially expressed proteins involved in Al-tolerance. RESULTS C. sinensis was more tolerant to Al-toxicity than C. grandis. We isolated 347 differentially expressed proteins from + Al Citrus roots. Among these proteins, 202 (96) proteins only presented in C. sinensis (C. grandis), and 49 proteins were shared by the two species. Of the 49 overlapping proteins, 45 proteins were regulated in the same direction upon Al exposure in the both species. These proteins were classified into following categories: sulfur metabolism, stress and defense response, carbohydrate and energy metabolism, nucleic acid metabolism, protein metabolism, cell transport, biological regulation and signal transduction, cell wall and cytoskeleton metabolism, and jasmonic acid (JA) biosynthesis. The higher Al-tolerance of C. sinensis may be related to several factors, including: (a) activation of sulfur metabolism; (b) greatly improving the total ability of antioxidation and detoxification; (c) up-regulation of carbohydrate and energy metabolism; (d) enhancing cell transport; (e) decreased (increased) abundances of proteins involved in protein synthesis (proteiolysis); (f) keeping a better balance between protein phosphorylation and dephosphorylation; and (g) increasing JA biosynthesis. CONCLUSIONS Our results demonstrated that metabolic flexibility was more remarkable in C. sinenis than in C. grandis roots, thus improving the Al-tolerance of C. sinensis. This provided the most integrated view of the adaptive responses occurring in Al-toxicity roots.
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Affiliation(s)
- Huan-Xin Jiang
- Institute of Plant Nutritional Physiology and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Lin-Tong Yang
- Institute of Plant Nutritional Physiology and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Yi-Ping Qi
- Institute of Materia Medica, Fujian Academy of Medical Sciences, Fuzhou, 350001, China.
| | - Yi-Bin Lu
- Institute of Plant Nutritional Physiology and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Zeng-Rong Huang
- Institute of Plant Nutritional Physiology and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Li-Song Chen
- Institute of Plant Nutritional Physiology and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,The Higher Educational Key Laboratory of Fujian Province for Soil Ecosystem Health and Regulation, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. .,Fujian Key Laboratory for Plant Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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