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Zlobin IE, Danilova ED, Murgan OK, Kolomeichuk LV, Litvinovskaya RP, Sauchuk AL, Kuznetsov VV, Efimova MV. Structurally Different Exogenic Brassinosteroids Protect Plants under Polymetallic Pollution via Structure-Specific Changes in Metabolism and Balance of Cell-Protective Components. Molecules 2023; 28:molecules28052077. [PMID: 36903322 PMCID: PMC10003821 DOI: 10.3390/molecules28052077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/08/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Heavy metals and aluminum are among the most significant abiotic factors that reduce the productivity and quality of crops in acidic and contaminated soils. The protective effects of brassinosteroids containing lactone are relatively well-studied under heavy metal stress, but the effects of brassinosteroids containing ketone are almost unstudied. Moreover, there are almost no data in the literature on the protective role of these hormones under polymetallic stress. The aim of our study was to compare the stress-protective effects of lactone-containing (homobrassinolide) and ketone-containing (homocastasterone) brassinosteroids on the barley plant's resistance to polymetallic stress. Barley plants were grown under hydroponic conditions; brassinosteroids, increased concentrations of heavy metals (Mn, Ni, Cu, Zn, Cd, and Pb), and Al were added to the nutrient medium. It was found that homocastasterone was more effective than homobrassinolide in mitigating the negative effects of stress on plant growth. Both brassinosteroids had no significant effect on the antioxidant system of plants. Both homobrassinolide and homocastron equally reduced the accumulation of toxic metals (except for Cd) in plant biomass. Both hormones improved Mg nutrition of plants treated with metal stress, but the positive effect on the content of photosynthetic pigments was observed only for homocastasterone and not for homobrassinolide. In conclusion, the protective effect of homocastasterone was more prominent compared to homobrassinolide, but the biological mechanisms of this difference remain to be elucidated.
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Affiliation(s)
- Ilya E. Zlobin
- Department of Plant Physiology, Biotechnology and Bioinformatics, Biological Institute, National Research Tomsk State University, Lenin Avenue 36, Tomsk 634050, Russia
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Street 35, Moscow 127276, Russia
| | - Elena D. Danilova
- Department of Plant Physiology, Biotechnology and Bioinformatics, Biological Institute, National Research Tomsk State University, Lenin Avenue 36, Tomsk 634050, Russia
| | - Ol’ga K. Murgan
- Department of Plant Physiology, Biotechnology and Bioinformatics, Biological Institute, National Research Tomsk State University, Lenin Avenue 36, Tomsk 634050, Russia
| | - Liliya V. Kolomeichuk
- Department of Plant Physiology, Biotechnology and Bioinformatics, Biological Institute, National Research Tomsk State University, Lenin Avenue 36, Tomsk 634050, Russia
| | - Raisa P. Litvinovskaya
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Kuprevich Street 5/2, 220084 Minsk, Belarus
| | - Alina L. Sauchuk
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Kuprevich Street 5/2, 220084 Minsk, Belarus
| | - Vladimir V. Kuznetsov
- Department of Plant Physiology, Biotechnology and Bioinformatics, Biological Institute, National Research Tomsk State University, Lenin Avenue 36, Tomsk 634050, Russia
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Street 35, Moscow 127276, Russia
- Correspondence: (V.V.K.); (M.V.E.); Tel.: +7-966-060-5878 (V.V.K.); +7-903-952-9672 (M.V.E.)
| | - Marina V. Efimova
- Department of Plant Physiology, Biotechnology and Bioinformatics, Biological Institute, National Research Tomsk State University, Lenin Avenue 36, Tomsk 634050, Russia
- Correspondence: (V.V.K.); (M.V.E.); Tel.: +7-966-060-5878 (V.V.K.); +7-903-952-9672 (M.V.E.)
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Cui J, Zhu Y, Du H, Liu Z, Shen S, Wang T, Cui W, Zhang R, Jiang S, Wu Y, Gu X, Yu H, Liang Z. Chromosome-level reference genome of tetraploid Isoetes sinensis provides insights into evolution and adaption of lycophytes. Gigascience 2022; 12:giad079. [PMID: 37776367 PMCID: PMC10541799 DOI: 10.1093/gigascience/giad079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/09/2023] [Accepted: 09/11/2023] [Indexed: 10/02/2023] Open
Abstract
BACKGROUND The Lycophyta species are the extant taxa most similar to early vascular plants that were once abundant on Earth. However, their distribution has greatly diminished. So far, the absence of chromosome-level assembled lycophyte genomes has hindered our understanding of evolution and environmental adaption of lycophytes. FINDINGS We present the reference genome of the tetraploid aquatic quillwort, Isoetes sinensis, a lycophyte. This genome represents the first chromosome-level assembled genome of a tetraploid seed-free plant. Comparison of genomes between I. sinensis and Isoetestaiwanensis revealed conserved and different genomic features between diploid and polyploid lycophytes. Comparison of the I. sinensis genome with those of other species representing the evolutionary lineages of green plants revealed the inherited genetic tools for transcriptional regulation and most phytohormones in I. sinensis. The presence and absence of key genes related to development and stress responses provide insights into environmental adaption of lycophytes. CONCLUSIONS The high-quality reference genome and genomic analysis presented in this study are crucial for future genetic and environmental studies of not only I. sinensis but also other lycophytes.
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Affiliation(s)
- Jinteng Cui
- College of Landscape Architecture, Beijing University of Agriculture, Beijing 102206,China
| | - Yunke Zhu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Glbizzia Biosciences, Beijing 102699, China
| | - Hai Du
- College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China
| | | | - Siqian Shen
- College of Landscape Architecture, Beijing University of Agriculture, Beijing 102206, China
| | - Tongxin Wang
- College of Landscape Architecture, Beijing University of Agriculture, Beijing 102206, China
| | - Wenwen Cui
- College of Landscape Architecture, Beijing University of Agriculture, Beijing 102206, China
| | - Rong Zhang
- Fisheries Science Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100068, China
| | | | - Yanmin Wu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiaofeng Gu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Hao Yu
- Department of Biological Sciences, National University of Singapore, Singapore117543, Singapore
| | - Zhe Liang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Sharma A, Ramakrishnan M, Khanna K, Landi M, Prasad R, Bhardwaj R, Zheng B. Brassinosteroids and metalloids: Regulation of plant biology. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127518. [PMID: 34836689 DOI: 10.1016/j.jhazmat.2021.127518] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 06/28/2021] [Accepted: 10/13/2021] [Indexed: 05/06/2023]
Abstract
Metalloid contamination in the environment is one of the serious concerns posing threat to our ecosystems. Excess of metalloid concentrations (including antimony, arsenic, boron, selenium etc.) in soil results in their over accumulation in plant tissues, which ultimately causes phytotoxicity and their bio-magnification. So, it is very important to find some ecofriendly approaches to counter negative impacts of above mentioned metalloids on plant system. Brassinosteroids (BRs) belong to family of plant steroidal hormones, and are considered as one of the ecofriendly way to counter metalloid phytotoxicity. This phytohormone regulates the plant biology in presence of metalloids by modulating various key biological processes like cell signaling, primary and secondary metabolism, bio-molecule crosstalk and redox homeostasis. The present review explains the in-depth mechanisms of BR regulated plant responses in presence of metalloids, and provides some biotechnological aspects towards ecofriendly management of metalloid contamination.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
| | - Muthusamy Ramakrishnan
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Kanika Khanna
- Plant Stress Physiology Lab, Department of Botanical and Environment Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, I-56124, Pisa, Italy; CIRSEC, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, I-56124, Pisa, Italy
| | - Rajendra Prasad
- Department of Horticulture, Kulbhaskar Ashram Post Graduate College, Prayagraj, Uttar Pradesh, India
| | - Renu Bhardwaj
- Plant Stress Physiology Lab, Department of Botanical and Environment Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
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Saini S, Kaur N, Pati PK. Phytohormones: Key players in the modulation of heavy metal stress tolerance in plants. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 223:112578. [PMID: 34352573 DOI: 10.1016/j.ecoenv.2021.112578] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 07/22/2021] [Accepted: 07/28/2021] [Indexed: 05/07/2023]
Abstract
Heavy metal (HM) stress in plants has received considerable global attention as it threatens sustainable growth in agriculture worldwide. Hence, desperate efforts have been undertaken for combating the effects of this stress in plants. Interestingly, the use of phytohormones in reducing the impact of HM toxicity has gained much momentum in the recent past. Phytohormones act as chemical messengers that improve the HM stress resistance in plants, thus allowing them to retain their growth and developmental plasticity. Their exogenous application as well as manipulation of endogenous levels through precise targeting of their biosynthesis/signaling components is a promising approach for providing a protective shield against HM stress in plants. However, for the successful use of phytohormones for field plants exposed to HM toxicity, in-depth knowledge of the key pathways regulated by them is of prime importance. Hence, the present review mainly summarizes the key conceptual developments on the involvement of phytohormones in the mitigation of HM stress in plants. The role of various genes, proteins, and signaling components involved in phytohormones associated HM stress tolerance and their modulation has also been discussed. Thus, this update will pave the way for improving HM stress tolerance in plants with the advent of phytohormones for sustainable agriculture growth in the future.
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Affiliation(s)
- Shivani Saini
- Department of Botany, GGDSD College, Sector-32C, Chandigarh, India.
| | - Navdeep Kaur
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India; Centre for Agricultural Research and Innovation, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
| | - Pratap Kumar Pati
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India; Centre for Agricultural Research and Innovation, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
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Nguyen TQ, Sesin V, Kisiala A, Emery RJN. Phytohormonal Roles in Plant Responses to Heavy Metal Stress: Implications for Using Macrophytes in Phytoremediation of Aquatic Ecosystems. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:7-22. [PMID: 33074580 DOI: 10.1002/etc.4909] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 05/25/2020] [Accepted: 10/15/2020] [Indexed: 05/20/2023]
Abstract
Heavy metals can represent a threat to the health of aquatic ecosystems. Unlike organic chemicals, heavy metals cannot be eliminated by natural processes such as their degradation into less toxic compounds, and this creates unique challenges for their remediation from soil, water, and air. Phytoremediation, defined as the use of plants for the removal of environmental contaminants, has many benefits compared to other pollution-reducing methods. Phytoremediation is simple, efficient, cost-effective, and environmentally friendly because it can be carried out at the polluted site, which simplifies logistics and minimizes exposure to humans and wildlife. Macrophytes represent a unique tool to remediate diverse environmental media because they can accumulate heavy metals from contaminated sediment via roots, from water via submerged leaves, and from air via emergent shoots. In this review, a synopsis is presented about how plants, especially macrophytes, respond to heavy metal stress; and we propose potential roles that phytohormones can play in the alleviation of metal toxicity in the aquatic environment. We focus on the uptake, translocation, and accumulation mechanisms of heavy metals in organs of macrophytes and give examples of how phytohormones interact with plant defense systems under heavy metal exposure. We advocate for a more in-depth understanding of these processes to inform more effective metal remediation techniques from metal-polluted water bodies. Environ Toxicol Chem 2021;40:7-22. © 2020 SETAC.
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Affiliation(s)
- Thien Q Nguyen
- Department of Biology, Trent University, Peterborough, Ontario, Canada
| | - Verena Sesin
- Environmental and Life Sciences, Trent University, Peterborough, Ontario, Canada
| | - Anna Kisiala
- Department of Biology, Trent University, Peterborough, Ontario, Canada
| | - R J Neil Emery
- Department of Biology, Trent University, Peterborough, Ontario, Canada
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López-Ruiz BA, Zluhan-Martínez E, Sánchez MDLP, Álvarez-Buylla ER, Garay-Arroyo A. Interplay between Hormones and Several Abiotic Stress Conditions on Arabidopsis thaliana Primary Root Development. Cells 2020; 9:E2576. [PMID: 33271980 PMCID: PMC7759812 DOI: 10.3390/cells9122576] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 01/17/2023] Open
Abstract
As sessile organisms, plants must adjust their growth to withstand several environmental conditions. The root is a crucial organ for plant survival as it is responsible for water and nutrient acquisition from the soil and has high phenotypic plasticity in response to a lack or excess of them. How plants sense and transduce their external conditions to achieve development, is still a matter of investigation and hormones play fundamental roles. Hormones are small molecules essential for plant growth and their function is modulated in response to stress environmental conditions and internal cues to adjust plant development. This review was motivated by the need to explore how Arabidopsis thaliana primary root differentially sense and transduce external conditions to modify its development and how hormone-mediated pathways contribute to achieve it. To accomplish this, we discuss available data of primary root growth phenotype under several hormone loss or gain of function mutants or exogenous application of compounds that affect hormone concentration in several abiotic stress conditions. This review shows how different hormones could promote or inhibit primary root development in A. thaliana depending on their growth in several environmental conditions. Interestingly, the only hormone that always acts as a promoter of primary root development is gibberellins.
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Affiliation(s)
- Brenda Anabel López-Ruiz
- Laboratorio de Genética Molecular, Desarrollo y Evolución de Plantas, Departamento de Ecología Funcional, Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico; (B.A.L.-R.); (E.Z.-M.); (M.d.l.P.S.); (E.R.Á.-B.)
| | - Estephania Zluhan-Martínez
- Laboratorio de Genética Molecular, Desarrollo y Evolución de Plantas, Departamento de Ecología Funcional, Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico; (B.A.L.-R.); (E.Z.-M.); (M.d.l.P.S.); (E.R.Á.-B.)
| | - María de la Paz Sánchez
- Laboratorio de Genética Molecular, Desarrollo y Evolución de Plantas, Departamento de Ecología Funcional, Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico; (B.A.L.-R.); (E.Z.-M.); (M.d.l.P.S.); (E.R.Á.-B.)
| | - Elena R. Álvarez-Buylla
- Laboratorio de Genética Molecular, Desarrollo y Evolución de Plantas, Departamento de Ecología Funcional, Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico; (B.A.L.-R.); (E.Z.-M.); (M.d.l.P.S.); (E.R.Á.-B.)
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
| | - Adriana Garay-Arroyo
- Laboratorio de Genética Molecular, Desarrollo y Evolución de Plantas, Departamento de Ecología Funcional, Instituto de Ecología, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico; (B.A.L.-R.); (E.Z.-M.); (M.d.l.P.S.); (E.R.Á.-B.)
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
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Dawuda MM, Liao W, Hu L, Yu J, Xie J, Calderón-Urrea A, Jin X, Wu Y. Root tolerance and biochemical response of Chinese lettuce ( Lactuca sativa L.) genotypes to cadmium stress. PeerJ 2019; 7:e7530. [PMID: 31497397 PMCID: PMC6708574 DOI: 10.7717/peerj.7530] [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: 04/15/2019] [Accepted: 07/22/2019] [Indexed: 11/28/2022] Open
Abstract
This study was conducted to determine the root tolerance and biochemical responses of four Chinese Lactuca sativa L. genotypes (Lüsu, Lümeng, Yidali and Anyan) to cadmium (Cd2+) stress. Twenty-eight days old seedlings were exposed to Hoagland’s nutrient solution supplied with or without 100 µM CdCl2 and monitored for seven days in a climate controlled room. The 100 µM CdCl2 significantly (P < 0.001) decreased all the root morphological indexes of the four genotypes. However, Yidali, which possessed the smallest root system, exhibited greater root tolerance to Cd2+ by having the highest tolerance indexes for root volume (46%), surface area (61%), projected area (74%) and numbers of root forks (63%) and root tips (58%). Moreover, Cd2+ stress also caused increases in H2O2 contents in the roots but the increase was least in Yidali which showed greater root tolerance to Cd2+stress. The effect of Cd2+ stress on the contents of hormones in the roots depended on the genotypes. Under Cd2+ stress, abscisic acid correlated positively with indole-3-acetic acid (r = 0.669*), gibberellic acid (r = 0.630*) and cytokinin (r = 0.785**). The antioxidant enzyme activities and proline responses of the four genotypes to Cd2+ stress were similar. The SOD activity was decreased whiles the CAT and POD activities, as well as the contents of proline increased in all the genotypes under the stress condition. These results suggest that lettuce genotypes with smaller root systems could be more tolerant to Cd2+ stress compared to those with larger root systems.
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Affiliation(s)
- Mohammed Mujitaba Dawuda
- Department of Horticulture, Faculty of Agriculture, University for Development Studies, Tamale, Ghana.,College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Weibiao Liao
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Linli Hu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jihua Yu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jianming Xie
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Alejandro Calderón-Urrea
- Department of Biology, California State University, Fresno, Fresno, CA, United States of America
| | - Xin Jin
- College of Agriculture and Forest Science, Linyi University, Linyi, Shandong Province, China
| | - Yue Wu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
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Wu C, Li F, Xu H, Zeng W, Yu R, Wu X, Shen L, Liu Y, Li J. The potential role of brassinosteroids (BRs) in alleviating antimony (Sb) stress in Arabidopsis thaliana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 141:51-59. [PMID: 31128563 DOI: 10.1016/j.plaphy.2019.05.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 05/09/2019] [Accepted: 05/09/2019] [Indexed: 06/09/2023]
Abstract
Brassinosteroids (BRs) play a crucial role in improving plant resistance to various environmental stresses. In this study, we aimed to explore the potential role of BRs in protecting plants from antimony (Sb) toxicity. In the in vitro agar-plate culture experiments, the level changes of BR in wide-type plants and BR biosynthesis mutant dwrf4-1 significantly affected the corresponding response of Arabidopsis to Sb stress. Increasing the BR content significantly enhanced Sb-induced root growth inhibition and lowering the BR level appeared to reduce the plant sensitivity to Sb stress. Foliar application of eBL, however, significantly decreased the Sb accumulation and peroxidation of membrane lipids, increased the contents of chlorophyll and proline, and further boosted and strengthened the antioxidant enzymes activities. These experiments demonstrated that BRs played an important role in regulating heavy metal stress responses in plants and exogenous foliar spray of eBL was an important method for alleviating toxicity of Sb.
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Affiliation(s)
- Chenchen Wu
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China
| | - Fang Li
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China
| | - Hui Xu
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China
| | - Weimin Zeng
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China; CSIRO Mineral Resources, Clayton South, Vic 3169, Australia
| | - Runlan Yu
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China
| | - Xueling Wu
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China
| | - Li Shen
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China
| | - Yuandong Liu
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China
| | - Jiaokun Li
- School of Minerals Processing and Bioengineering, Central South University (CSU), Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Central South University (CSU), Changsha, 410083, China.
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Surgun-Acar Y, Zemheri-Navruz F. 24-Epibrassinolide promotes arsenic tolerance in Arabidopsis thaliana L. by altering stress responses at biochemical and molecular level. JOURNAL OF PLANT PHYSIOLOGY 2019; 238:12-19. [PMID: 31121523 DOI: 10.1016/j.jplph.2019.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 04/26/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
In this study, the effect of 24-Epibrassinolide (EBL) on antioxidant system in Arabidopsis thaliana were investigated under arsenate [As(V)] stress. The enzyme activity of superoxide dismutase (SOD) and catalase (CAT), total antioxidant status, malondialdehyde (MDA) level and free proline content, as well as the expression levels of SOD isoforms (Cu-ZnSODs, FeSODs and MnSOD), CAT isoforms (CAT1, CAT2 and CAT3), some heat shock proteins (Hsp70-4 and Hsp90-1) and proline biosynthesis (P5CS1 and P5CS2) genes were determined in rosette leaves of eight-week old plants under exposure of 100 and 200 μM As(V) and/or 1 μM EBL treatments for 24 h. Total SOD and CAT enzyme activities increased as a result of 100 μM As(V) + EBL treatments compared to 100 μM As(V) treatment. Total antioxidant and proline levels increased in plants subjected to As(V), and the treatment of EBL together with stress caused further increase. As the MDA level increased in As-treated plants, 100 μM As(V) + EBL treatment decreased MDA level. Transcript levels of CSD1, CSD2, FSD1, FSD2, MSD1 and CAT2 genes increased as a result of combined treatment of EBL and As(V) compared to control and alone stress treatments (except CSD1 gene). Expression level of CSD3, CAT1 and CAT3 genes were downregulated in response to As(V) and/or EBL treatments. EBL application alone and in combination with As(V) elevated the expression level of P5CS1 gene dramatically. Treatment with 100 μM As(V) and EBL increased the transcript level of Hsp70-4 and Hsp90-1 genes in leaves compared to 100 μM As(V) treatment. To our best knowledge, this is the first detailed study to evaluate the improving effect of EBL on antioxidant defense system at biochemical and transcriptional level in A. thaliana plants under As(V) stress.
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Affiliation(s)
- Yonca Surgun-Acar
- Department of Agricultural Biotechnology, Faculty of Agriculture, Çanakkale Onsekiz Mart University, Çanakkale, Turkey.
| | - Fahriye Zemheri-Navruz
- Department of Molecular Biology and Genetics, Faculty of Science, Bartın University, Bartın, Turkey.
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Kong X, Li C, Zhang F, Yu Q, Gao S, Zhang M, Tian H, Zhang J, Yuan X, Ding Z. Ethylene promotes cadmium-induced root growth inhibition through EIN3 controlled XTH33 and LSU1 expression in Arabidopsis. PLANT, CELL & ENVIRONMENT 2018; 41:2449-2462. [PMID: 29869796 DOI: 10.1111/pce.13361] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 05/22/2018] [Accepted: 05/27/2018] [Indexed: 05/29/2023]
Abstract
Cadmium (Cd) stress is one of the most serious heavy metal stresses limiting plant growth and development. However, the molecular mechanisms underlying Cd-induced root growth inhibition remain unclear. Here, we found that ethylene signalling positively regulates Cd-induced root growth inhibition. Arabidopsis seedlings pretreated with the ethylene precursor 1-aminocyclopropane-1-carboxylic acid exhibited enhanced Cd-induced root growth inhibition, whereas the addition of the ethylene biosynthesis inhibitor aminoethoxyvinyl glycine decreased Cd-induced root growth inhibition. Consistently, ethylene-insensitive mutants, such as ein4-1, ein3-1 eil1-1 double mutant, and EBF1ox, displayed an increased tolerance to Cd. Furthermore, we also observed that Cd inhibited EIN3 protein degradation, a process that was regulated by ethylene signalling. Genetic and biochemical analyses showed that EIN3 enhanced root growth inhibition under Cd stress through direct binding to the promoters and regulating the expression of XTH33 and LSU1, which encode key regulators of cell wall extension and sulfur metabolic process, respectively. Collectively, our study demonstrates that ethylene plays a positive role in Cd-regulated root growth inhibition through EIN3-mediated transcriptional regulation of XTH33 and LSU1 and provides a molecular framework for the integration of environmental signals and intrinsic regulators in modulating plant root growth.
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Affiliation(s)
- Xiangpei Kong
- Shandong University, The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Science, Jinan, China
| | - Cuiling Li
- Shandong University, The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Science, Jinan, China
| | - Feng Zhang
- Shandong University, The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Science, Jinan, China
| | - Qianqian Yu
- Liaocheng University, College of Life Sciences, Liaocheng, Shandong, China
| | - Shan Gao
- Qilu Normal University, College of Life Sciences, Jinan, Shandong, China
| | - Maolin Zhang
- Shandong University, The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Science, Jinan, China
| | - Huiyu Tian
- Shandong University, The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Science, Jinan, China
| | - Jian Zhang
- Shandong University, Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Jinan, Shandong, China
| | - Xianzheng Yuan
- Shandong University, Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Jinan, Shandong, China
| | - Zhaojun Ding
- Shandong University, The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, College of Life Science, Jinan, China
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11
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Park JH, Kang CH, Nawkar GM, Lee ES, Paeng SK, Chae HB, Chi YH, Kim WY, Yun DJ, Lee SY. EMR, a cytosolic-abundant ring finger E3 ligase, mediates ER-associated protein degradation in Arabidopsis. THE NEW PHYTOLOGIST 2018; 220:163-177. [PMID: 29932218 DOI: 10.1111/nph.15279] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 05/18/2018] [Indexed: 05/16/2023]
Abstract
Investigation of the endoplasmic reticulum-associated degradation (ERAD) system in plants led to the identification of ERAD-mediating RING finger protein (EMR) as a plant-specific ERAD E3 ligase from Arabidopsis. EMR was significantly up-regulated under endoplasmic reticulum (ER) stress conditions. The EMR protein purified from bacteria displayed high E3 ligase activity, and tobacco leaf-produced EMR mediated mildew resistance locus O-12 (MLO12) degradation in a proteasome-dependent manner. Subcellular localization and coimmunoprecipitation analyses showed that EMR forms a complex with ubiquitin-conjugating enzyme 32 (UBC32) as a cytosolic interaction partner. Mutation of EMR and RNA interference (RNAi) increased the tolerance of plants to ER stress. EMR RNAi in the bri1-5 background led to partial recovery of the brassinosteroid (BR)-insensitive phenotypes as compared with the original mutant plants and increased ER stress tolerance. The presented results suggest that EMR is involved in the plant ERAD system that affects BR signaling under ER stress conditions as a novel Arabidopsis ring finger E3 ligase mainly present in cytosol while the previously identified ERAD E3 components are typically membrane-bound proteins.
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Affiliation(s)
- Joung Hun Park
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Chang Ho Kang
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Ganesh M Nawkar
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Eun Seon Lee
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Seol Ki Paeng
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Ho Byoung Chae
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Yong Hun Chi
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Woe Yeon Kim
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Dae-Jin Yun
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, 05029, Korea
| | - Sang Yeol Lee
- Division of Applied Life Sciences (BK21+) and Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
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12
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Shukla A, Srivastava S, Suprasanna P. Genomics of Metal Stress-Mediated Signalling and Plant Adaptive Responses in Reference to Phytohormones. Curr Genomics 2017; 18:512-522. [PMID: 29204080 PMCID: PMC5684655 DOI: 10.2174/1389202918666170608093327] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 10/15/2016] [Accepted: 10/30/2016] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION As a consequence of a sessile lifestyle, plants often have to face a number of life threatening abiotic and biotic stresses. Plants counteract the stresses through morphological and physiological adaptations, which are imparted through flexible and well-coordinated network of signalling and effector molecules, where phytohormones play important role. Hormone synthesis, signal transduction, perception and cross-talks create a complex network. Omics approaches, which include transcriptomics, genomics, proteomics and metabolomics, have opened new paths to understand such complex networks. OBJECTIVE This review concentrates on the importance of phytohormones and enzymatic expressions under metal stressed conditions. CONCLUSION This review sheds light on gene expressions involved in plant adaptive and defence responses during metal stress. It gives an insight of genomic approaches leading to identification and functional annotation of genes involved in phytohormone signal transduction and perception. Moreover, it also emphasizes on perception, signalling and cross-talks among various phytohormones and other signalling components viz., Reactive Oxygen Species (ROS) and Reactive Nitrogen Species (RNS).
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Affiliation(s)
- Anurakti Shukla
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi - 221005, U.P., India
| | - Sudhakar Srivastava
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi - 221005, U.P., India
| | - Penna Suprasanna
- Nuclear Agriculture & Biotechnology Division, Bhabha Atomic Research Centre, Mumbai - 400085, Maharashtra, India
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13
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Jakubowska D, Janicka M. The role of brassinosteroids in the regulation of the plasma membrane H +-ATPase and NADPH oxidase under cadmium stress. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 264:37-47. [PMID: 28969801 DOI: 10.1016/j.plantsci.2017.08.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 08/19/2017] [Accepted: 08/21/2017] [Indexed: 05/10/2023]
Abstract
The present research aim was to define the role of brassinosteroids (BRs) in plant adaptation to cadmium stress. We observed a stimulating effect of exogenous BR on the activity of two plasma membrane enzymes which play a key role in plants adaptation to cadmium stress, H+-ATPase (EC 3.6.3.14) and NADPH oxidase (EC 1.6.3.1). Using anti-phosphothreonine antibody we showed that modification of PM H+-ATPase activity under BR action could result from phosphorylation of the enzyme protein. Also the relative expression of genes encoding both PM H+-ATPase and NADPH oxidase was affected by BR. To confirm the role of BR in the cadmium stimulating effect on activity of both studied plasma membrane enzymes, an assay in the presence of a BR biosynthesis inhibitor (propiconazole) was performed. Moreover, as a tool in our work we used commercially available plant mutants unable to BR biosynthesis or with dysfunctional BR signaling pathway, to further confirm participation of BR in plant adaptation to heavy metal stress. Presented results demonstrate some elements of the brassinosteroid-induced pathway activated under cadmium stress, wherein H+-ATPase and NADPH oxidase are key factors.
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Affiliation(s)
- Dagmara Jakubowska
- Department of Plant Molecular Physiology, Institute of Experimental Biology, University of Wrocław, Kanonia Street 6/8, 50-328 Wrocław, Poland.
| | - Małgorzata Janicka
- Department of Plant Molecular Physiology, Institute of Experimental Biology, University of Wrocław, Kanonia Street 6/8, 50-328 Wrocław, Poland.
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14
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Nawaz F, Naeem M, Zulfiqar B, Akram A, Ashraf MY, Raheel M, Shabbir RN, Hussain RA, Anwar I, Aurangzaib M. Understanding brassinosteroid-regulated mechanisms to improve stress tolerance in plants: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:15959-15975. [PMID: 28540554 DOI: 10.1007/s11356-017-9163-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 05/01/2017] [Indexed: 05/25/2023]
Abstract
Brassinosteroids (BRs) are steroidal plant hormones involved in regulation of physiological and molecular processes to ameliorate various biotic and abiotic stresses. Exogenous application of BRs to improve stress tolerance in plants has recently become a high research priority. Several studies have revealed the involvement of these steroidal hormones in upregulation of stress-related defense genes and their cross talk with other metabolic pathways. This is likely to stimulate research on many unanswered questions regarding their role in enhancing the ability of plants to tolerate adverse environmental conditions. Thus, this review appraises new insights on mechanisms mediating BR-regulated changes in plants, focused mainly on their involvement in regulation of physiological and molecular mechanisms under stress conditions. Herein, examples of BR-stimulated modulation of antioxidant defense system and upregulation of transcription factors in plants exposed to various biotic (bacterial, viral, and fungal attack) and abiotic stresses (drought, salinity, heat, low temperature, and heavy metal stress) are discussed. Based on these insights, future research in the current direction can be helpful to increase our understanding of BR-mediated complex and interrelated processes under stress conditions.
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Affiliation(s)
- Fahim Nawaz
- Department of Agronomy, MNS University of Agriculture, Multan, Pakistan.
| | - Muhammad Naeem
- Department of Agronomy, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Bilal Zulfiqar
- Department of Agronomy, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Asim Akram
- Department of Agronomy, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Yasin Ashraf
- Crop Stress Management Group, Nuclear Institute for Agriculture and Biology, Faisalabad, Pakistan
| | - Muhammad Raheel
- Department of Plant Pathology, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Rana Nauman Shabbir
- Department of Agronomy, Agriculture College, Bahauddin Zakariya University, Multan, Pakistan
| | - Rai Altaf Hussain
- Department of Agronomy, PMAS Arid Agriculture University, Rawalpindi, Pakistan
| | - Irfan Anwar
- Department of Agronomy, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
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15
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Yamaguchi C, Takimoto Y, Ohkama-Ohtsu N, Hokura A, Shinano T, Nakamura T, Suyama A, Maruyama-Nakashita A. Effects of Cadmium Treatment on the Uptake and Translocation of Sulfate in Arabidopsis thaliana. PLANT & CELL PHYSIOLOGY 2016; 57:2353-2366. [PMID: 27590710 DOI: 10.1093/pcp/pcw156] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 08/29/2016] [Indexed: 05/23/2023]
Abstract
Cadmium (Cd) is a highly toxic and non-essential element for plants, whereas phytochelatins and glutathione are low-molecular-weight sulfur compounds that function as chelators and play important roles in detoxification. Cadmium exposure is known to induce the expression of sulfur-assimilating enzymes and sulfate uptake by roots. However, the molecular mechanism underlying Cd-induced changes remains largely unknown. Accordingly, we analyzed the effects of Cd treatment on the uptake and translocation of sulfate and accumulation of thiols in Arabidopsis thaliana Both wild type (WT) and null mutant (sel1-10 and sel1-18) plants of the sulfate transporter SULTR1;2 exhibited growth inhibition when treated with CdCl2 However, the mutant plants exhibited a lower growth rate and lower Cd accumulation. Cadmium treatment also upregulated the transcription of SULTR1;2 and sulfate uptake activity in WT plants, but not in mutant plants. In addition, the sulfate, phytochelatin and total sulfur contents were preferentially accumulated in the shoots of both WT and mutant plants treated with CdCl2, and sulfur K-edge XANES spectra suggested that sulfate was the main compound responsible for the increased sulfur content in the shoots of CdCl2-treated plants. Our results demonstrate that Cd-induced sulfate uptake depends on SULTR1;2 activity, and that CdCl2 treatment greatly shifts the distribution of sulfate to shoots, increases the sulfate concentration of xylem sap and upregulates the expression of SULTRs involved in root-to-shoot sulfate transport. Therefore, we conclude that root-to-shoot sulfate transport is stimulated by Cd and suggest that the uptake and translocation of sulfate in CdCl2-treated plants are enhanced by demand-driven regulatory networks.
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Affiliation(s)
- Chisato Yamaguchi
- Graduate School of Agricultural Science, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Yuki Takimoto
- Faculty of Bioscience, Fukui Prefectural University, 4-1-1 Kenjojima, Matsuoka, Eiheiji-town, Fukui 910-1195, Japan
| | - Naoko Ohkama-Ohtsu
- Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
| | - Akiko Hokura
- Department of Green and Sustainable Chemistry School of Engineering, Tokyo Denki University, 5 Senju-Asahicho, Adachi, Tokyo 120-8551, Japan
| | - Takuro Shinano
- NARO Hokkaido Agricultural Research Center, 1 Hitsujigaoka, Toyohira-ku, Sapporo, 062-8555, Japan
- Present address: Agricultural Radiation Research Center, NARO Tohoku Agricultural Research Center, 50 Aza-Harajyukuminami, Arai, Fukushima, 210-2156
| | - Toshiki Nakamura
- Graduate School of Agricultural Science, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Akiko Suyama
- Graduate School of Agricultural Science, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Akiko Maruyama-Nakashita
- Graduate School of Agricultural Science, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
- Faculty of Bioscience, Fukui Prefectural University, 4-1-1 Kenjojima, Matsuoka, Eiheiji-town, Fukui 910-1195, Japan
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16
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Wilkins KA, Matthus E, Swarbreck SM, Davies JM. Calcium-Mediated Abiotic Stress Signaling in Roots. FRONTIERS IN PLANT SCIENCE 2016; 7:1296. [PMID: 27621742 PMCID: PMC5002411 DOI: 10.3389/fpls.2016.01296] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/12/2016] [Indexed: 05/20/2023]
Abstract
Roots are subjected to a range of abiotic stresses as they forage for water and nutrients. Cytosolic free calcium is a common second messenger in the signaling of abiotic stress. In addition, roots take up calcium both as a nutrient and to stimulate exocytosis in growth. For calcium to fulfill its multiple roles must require strict spatio-temporal regulation of its uptake and efflux across the plasma membrane, its buffering in the cytosol and its sequestration or release from internal stores. This prompts the question of how specificity of signaling output can be achieved against the background of calcium's other uses. Threats to agriculture such as salinity, water availability and hypoxia are signaled through calcium. Nutrient deficiency is also emerging as a stress that is signaled through cytosolic free calcium, with progress in potassium, nitrate and boron deficiency signaling now being made. Heavy metals have the capacity to trigger or modulate root calcium signaling depending on their dose and their capacity to catalyze production of hydroxyl radicals. Mechanical stress and cold stress can both trigger an increase in root cytosolic free calcium, with the possibility of membrane deformation playing a part in initiating the calcium signal. This review addresses progress in identifying the calcium transporting proteins (particularly channels such as annexins and cyclic nucleotide-gated channels) that effect stress-induced calcium increases in roots and explores links to reactive oxygen species, lipid signaling, and the unfolded protein response.
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Affiliation(s)
| | | | | | - Julia M. Davies
- Department of Plant Sciences, University of CambridgeCambridge, UK
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17
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Singh S, Parihar P, Singh R, Singh VP, Prasad SM. Heavy Metal Tolerance in Plants: Role of Transcriptomics, Proteomics, Metabolomics, and Ionomics. FRONTIERS IN PLANT SCIENCE 2016; 6:1143. [PMID: 26904030 PMCID: PMC4744854 DOI: 10.3389/fpls.2015.01143] [Citation(s) in RCA: 425] [Impact Index Per Article: 53.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 12/02/2015] [Indexed: 05/18/2023]
Abstract
Heavy metal contamination of soil and water causing toxicity/stress has become one important constraint to crop productivity and quality. This situation has further worsened by the increasing population growth and inherent food demand. It has been reported in several studies that counterbalancing toxicity due to heavy metal requires complex mechanisms at molecular, biochemical, physiological, cellular, tissue, and whole plant level, which might manifest in terms of improved crop productivity. Recent advances in various disciplines of biological sciences such as metabolomics, transcriptomics, proteomics, etc., have assisted in the characterization of metabolites, transcription factors, and stress-inducible proteins involved in heavy metal tolerance, which in turn can be utilized for generating heavy metal-tolerant crops. This review summarizes various tolerance strategies of plants under heavy metal toxicity covering the role of metabolites (metabolomics), trace elements (ionomics), transcription factors (transcriptomics), various stress-inducible proteins (proteomics) as well as the role of plant hormones. We also provide a glance of some strategies adopted by metal-accumulating plants, also known as "metallophytes."
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Affiliation(s)
- Samiksha Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Parul Parihar
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Rachana Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Vijay P. Singh
- Department of Botany, Government Ramanuj Pratap Singhdev Post Graduate College, Sarguja UniversityBaikunthpur, India
| | - Sheo M. Prasad
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
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18
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Gómez-Sagasti MT, Barrutia O, Ribas G, Garbisu C, Becerril JM. Early transcriptomic response of Arabidopsis thaliana to polymetallic contamination: implications for the identification of potential biomarkers of metal exposure. Metallomics 2016; 8:518-31. [DOI: 10.1039/c6mt00014b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Yue R, Lu C, Qi J, Han X, Yan S, Guo S, Liu L, Fu X, Chen N, Yin H, Chi H, Tie S. Transcriptome Analysis of Cadmium-Treated Roots in Maize (Zea mays L.). FRONTIERS IN PLANT SCIENCE 2016; 7:1298. [PMID: 27630647 PMCID: PMC5006096 DOI: 10.3389/fpls.2016.01298] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/15/2016] [Indexed: 05/05/2023]
Abstract
Cadmium (Cd) is a heavy metal and is highly toxic to all plant species. However, the underlying molecular mechanism controlling the effects of auxin on the Cd stress response in maize is largely unknown. In this study, the transcriptome produced by maize 'Zheng 58' root responses to Cd stress was sequenced using Illumina sequencing technology. In our study, six RNA-seq libraries yielded a total of 244 million clean short reads and 30.37 Gb of sequence data. A total of 6342 differentially expressed genes (DEGs) were grouped into 908 Gene Ontology (GO) categories and 198 Kyoto Encyclopedia of Genes and Genomes terms. GO term enrichment analysis indicated that various auxin signaling pathway-related GO terms were significantly enriched in DEGs. Comparison of the transcript abundances for auxin biosynthesis, transport, and downstream response genes revealed a universal expression response under Cd treatment. Furthermore, our data showed that free indole-3-acetic acid (IAA) levels were significantly reduced; but IAA oxidase activity was up-regulated after Cd treatment in maize roots. The analysis of Cd activity in maize roots under different Cd and auxin conditions confirmed that auxin affected Cd accumulation in maize seedlings. These results will improve our understanding of the complex molecular mechanisms underlying the response to Cd stress in maize roots.
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Affiliation(s)
- Runqing Yue
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Caixia Lu
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Jianshuang Qi
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Xiaohua Han
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Shufeng Yan
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Shulei Guo
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Lu Liu
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Xiaolei Fu
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Nana Chen
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Haiyan Yin
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Haifeng Chi
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Shuanggui Tie
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
- *Correspondence: Shuanggui Tie,
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20
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Wu L, Yang H. Combined Application of Carboxymethyl Chitosan Coating and Brassinolide Maintains the Postharvest Quality and Shelf Life of Green Asparagus. J FOOD PROCESS PRES 2015. [DOI: 10.1111/jfpp.12592] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Lingyan Wu
- School of Agriculture and Food Science; Zhejiang Agricultural & Forestry University; Huan Cheng Bei Lu # 88, Lin'an Hangzhou Zhejiang 311300 China
| | - Huqing Yang
- School of Agriculture and Food Science; Zhejiang Agricultural & Forestry University; Huan Cheng Bei Lu # 88, Lin'an Hangzhou Zhejiang 311300 China
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21
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De Smet S, Cuypers A, Vangronsveld J, Remans T. Gene Networks Involved in Hormonal Control of Root Development in Arabidopsis thaliana: A Framework for Studying Its Disturbance by Metal Stress. Int J Mol Sci 2015; 16:19195-224. [PMID: 26287175 PMCID: PMC4581294 DOI: 10.3390/ijms160819195] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Accepted: 08/01/2015] [Indexed: 01/23/2023] Open
Abstract
Plant survival under abiotic stress conditions requires morphological and physiological adaptations. Adverse soil conditions directly affect root development, although the underlying mechanisms remain largely to be discovered. Plant hormones regulate normal root growth and mediate root morphological responses to abiotic stress. Hormone synthesis, signal transduction, perception and cross-talk create a complex network in which metal stress can interfere, resulting in root growth alterations. We focus on Arabidopsis thaliana, for which gene networks in root development have been intensively studied, and supply essential terminology of anatomy and growth of roots. Knowledge of gene networks, mechanisms and interactions related to the role of plant hormones is reviewed. Most knowledge has been generated for auxin, the best-studied hormone with a pronounced primary role in root development. Furthermore, cytokinins, gibberellins, abscisic acid, ethylene, jasmonic acid, strigolactones, brassinosteroids and salicylic acid are discussed. Interactions between hormones that are of potential importance for root growth are described. This creates a framework that can be used for investigating the impact of abiotic stress factors on molecular mechanisms related to plant hormones, with the limited knowledge of the effects of the metals cadmium, copper and zinc on plant hormones and root development included as case example.
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Affiliation(s)
- Stefanie De Smet
- Centre for Environmental Sciences, Environmental Biology, Hasselt University, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium.
| | - Ann Cuypers
- Centre for Environmental Sciences, Environmental Biology, Hasselt University, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium.
| | - Jaco Vangronsveld
- Centre for Environmental Sciences, Environmental Biology, Hasselt University, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium.
| | - Tony Remans
- Centre for Environmental Sciences, Environmental Biology, Hasselt University, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium.
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Asgher M, Khan MIR, Anjum NA, Khan NA. Minimising toxicity of cadmium in plants--role of plant growth regulators. PROTOPLASMA 2015; 252:399-413. [PMID: 25303855 DOI: 10.1007/s00709-014-0710-4] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 09/23/2014] [Indexed: 05/20/2023]
Abstract
A range of man-made activities promote the enrichment of world-wide agricultural soils with a myriad of chemical pollutants including cadmium (Cd). Owing to its significant toxic consequences in plants, Cd has been one of extensively studied metals. However, sustainable strategies for minimising Cd impacts in plants have been little explored. Plant growth regulators (PGRs) are known for their role in the regulation of numerous developmental processes. Among major PGRs, plant hormones (such as auxins, gibberellins, cytokinins, abscisic acid, jasmonic acid, ethylene and salicylic acid), nitric oxide (a gaseous signalling molecule), brassinosteroids (steroidal phytohormones) and polyamines (group of phytohormone-like aliphatic amine natural compounds with aliphatic nitrogen structure) have gained attention by agronomist and physiologist as a sustainable media to induce tolerance in abiotic-stressed plants. Considering recent literature, this paper: (a) overviews Cd status in soil and its toxicity in plants, (b) introduces major PGRs and overviews their signalling in Cd-exposed plants, (c) appraises mechanisms potentially involved in PGR-mediated enhanced plant tolerance to Cd and (d) highlights key aspects so far unexplored in the subject area.
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Affiliation(s)
- Mohd Asgher
- Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
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Moulis JM, Bourguignon J, Catty P. Cadmium. BINDING, TRANSPORT AND STORAGE OF METAL IONS IN BIOLOGICAL CELLS 2014. [DOI: 10.1039/9781849739979-00695] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Cadmium is not an essential element for life. It is geologically marginal but anthropogenic activities have contributed significantly to its dispersion in the environment and to cadmium exposure of living species. The natural speciation of the divalent cation Cd2+ is dominated by its high propensity to bind to sulfur ligands, but Cd2+ may also occupy sites providing imidazole and carboxylate ligands. It binds to cell walls by passive adsorption (bio-sorption) and it may interact with surface receptors. Cellular uptake can occur by ion mimicry through a variety of transporters of essential divalent cations, but not always. Once inside cells, Cd2+ preferentially binds to thiol-rich molecules. It can accumulate in intracellular vesicles. It may also be transported over long distances within multicellular organisms and be trapped in locations devoid of efficient excretion systems. These locations include the renal cortex of animals and the leaves of hyper-accumulating plants. No specific regulatory mechanism monitors Cd2+ cellular concentrations. Thiol recruitment by cadmium is a major interference mechanism with many signalling pathways that rely on thiolate-disulfide equilibria and other redox-related processes. Cadmium thus compromises the antioxidant intracellular response that relies heavily on molecules with reactive thiolates. These biochemical features dominate cadmium toxicity, which is complex because of the diversity of the biological targets and the consequent pleiotropic effects. This chapter compares the cadmium-handling systems known throughout phylogeny and highlights the basic principles underlying the impact of cadmium in biology.
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Affiliation(s)
- Jean-Marc Moulis
- CEA, Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire Chimie et Biologie des Métaux 17 rue des Martyrs F-38054 Grenoble France
- CNRS UMR5249 F-38054 Grenoble France
- Université Joseph Fourier-Grenoble I UMR5249 F-38041 Grenoble France
| | - Jacques Bourguignon
- CEA, Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire Physiologie Cellulaire et Végétale F-38054 Grenoble France
- CNRS UMR5168 F-38054 Grenoble France
- Université Joseph Fourier-Grenoble I UMR5168 F-38041 Grenoble France
- INRA USC1359 F-38054 Grenoble France
| | - Patrice Catty
- CEA, Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire Chimie et Biologie des Métaux 17 rue des Martyrs F-38054 Grenoble France
- CNRS UMR5249 F-38054 Grenoble France
- Université Joseph Fourier-Grenoble I UMR5249 F-38041 Grenoble France
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Villiers F, Bastien O, Kwak JM. R. S. WebTool, a web server for random sampling-based significance evaluation of pairwise distances. Nucleic Acids Res 2014; 42:W198-204. [PMID: 24878919 PMCID: PMC4086074 DOI: 10.1093/nar/gku427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Pairwise comparison of data vectors represents a large part of computational biology, especially with the continuous increase in genome-wide approaches yielding more information from more biological samples simultaneously. Gene clustering for function prediction as well as analyses of signalling pathways and the time-dependent dynamics of a system are common biological approaches that often rely on large dataset comparison. Different metrics can be used to evaluate the similarity between entities to be compared, such as correlation coefficients and distances. While the latter offers a more flexible way of measuring potential biological relationships between datasets, the significance of any given distance is highly dependent on the dataset and cannot be easily determined. Monte Carlo methods are robust approaches for evaluating the significance of distance values by multiple random permutations of the dataset followed by distance calculation. We have developed R. S. WebTool (http://rswebtool.kwaklab.org), a user-friendly online server for random sampling-based evaluation of distance significances that features an array of visualization and analysis tools to help non-bioinformaticist users extract significant relationships from random noise in distance-based dataset analyses.
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Affiliation(s)
- Florent Villiers
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20740, USA
| | - Olivier Bastien
- Laboratoire de Physiologie Cellulaire et Végétale, iRTSV, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France
| | - June M Kwak
- Center for Plant Aging Research, Institute for Basic Science, Department of New Biology, DGIST, Daegu 711-873, Republic of Korea
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Aranjuelo I, Doustaly F, Cela J, Porcel R, Müller M, Aroca R, Munné-Bosch S, Bourguignon J. Glutathione and transpiration as key factors conditioning oxidative stress in Arabidopsis thaliana exposed to uranium. PLANTA 2014; 239:817-30. [PMID: 24389672 DOI: 10.1007/s00425-013-2014-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 12/12/2013] [Indexed: 05/23/2023]
Abstract
Although oxidative stress has been previously described in plants exposed to uranium (U), some uncertainty remains about the role of glutathione and tocopherol availability in the different responsiveness of plants to photo-oxidative damage. Moreover, in most cases, little consideration is given to the role of water transport in shoot heavy metal accumulation. Here, we investigated the effect of uranyl nitrate exposure (50 μM) on PSII and parameters involved in water transport (leaf transpiration and aquaporin gene expression) of Arabidopsis wild type (WT) and mutant plants that are deficient in tocopherol (vte1: null α/γ-tocopherol and vte4: null α-tocopherol) and glutathione biosynthesis (high content: cad1.3 and low content: cad2.1). We show how U exposure induced photosynthetic inhibition that entailed an electron sink/source imbalance that caused PSII photoinhibition in the mutants. The WT was the only line where U did not damage PSII. The increase in energy thermal dissipation observed in all the plants exposed to U did not avoid photo-oxidative damage of mutants. The maintenance of control of glutathione and malondialdehyde contents probed to be target points for the overcoming of photoinhibition in the WT. The relationship between leaf U content and leaf transpiration confirmed the relevance of water transport in heavy metals partitioning and accumulation in leaves, with the consequent implication of susceptibility to oxidative stress.
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Affiliation(s)
- Iker Aranjuelo
- Instituto de Agrobiotecnología, Universidad Pública de Navarra-CSIC-Gobierno de Navarra, Campus de Arrosadía, 31192, Mutilva Baja, Spain,
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26
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Hu YF, Zhou G, Na XF, Yang L, Nan WB, Liu X, Zhang YQ, Li JL, Bi YR. Cadmium interferes with maintenance of auxin homeostasis in Arabidopsis seedlings. JOURNAL OF PLANT PHYSIOLOGY 2013; 170:965-75. [PMID: 23683587 DOI: 10.1016/j.jplph.2013.02.008] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 02/01/2013] [Accepted: 02/05/2013] [Indexed: 05/22/2023]
Abstract
Auxin and its homeostasis play key roles in many aspects of plant growth and development. Cadmium (Cd) is a phytotoxic heavy metal and its inhibitory effects on plant growth and development have been extensively studied. However, the underlying molecular mechanism of the effects of Cd stress on auxin homeostasis is still unclear. In the present study, we found that the root elongation, shoot weight, hypocotyl length and chlorophyll content in wild-type (WT) Arabidopsis seedlings were significantly reduced after exposure to Cd stress. However, the lateral root (LR) formation was markedly promoted by Cd stress. The level and distribution of auxin were both greatly altered in primary root tips and cotyledons of Cd-treated plants. The results also showed that after Cd treatment, the IAA content was significantly decreased, which was accompanied by increases in the activity of the IAA oxidase and alteration in the expression of several putative auxin biosynthetic and catabolic genes. Application of the auxin transport inhibitor, 1-naphthylphthalamic acid (NPA) and 1-naphthoxyacetic acid (1-NOA), reversed the effects of Cd on LR formation. Additionally, there was less promotion of LR formation by Cd treatment in aux1-7 and pin2 mutants than that in the WT. Meanwhile, Cd stress also altered the expression of PINs and AUX1 in Arabidopsis roots, implying that the auxin transport pathway is required for Cd-modulated LR development. Taken together, these findings suggest that Cd stress disturbs auxin homeostasis through affecting auxin level, distribution, metabolism, and transport in Arabidopsis seedling.
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Affiliation(s)
- Yan Feng Hu
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
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Hao J, Yin Y, Fei SZ. Brassinosteroid signaling network: implications on yield and stress tolerance. PLANT CELL REPORTS 2013; 32:1017-30. [PMID: 23568410 DOI: 10.1007/s00299-013-1438-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 03/19/2013] [Accepted: 03/25/2013] [Indexed: 05/03/2023]
Abstract
The steroidal hormone brassinosteroids (BRs) play important roles in plant growth and development. Genetic, genomic and proteomic studies in Arabidopsis have identified major BR signaling components and elucidated the signal transduction pathway from the cell surface receptor kinase BRI1 to the BES1/BZR1 family of transcription factors. BRs interact with other plant hormones in coordinating gene expression and plant growth and development. In this review, we provide an update on the latest progress in characterizing the BR signaling network and discuss its interactions with other hormone pathways in determining yield component traits and in regulating stress responses.
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Azevedo RA, Gratão PL, Monteiro CC, Carvalho RF. What is new in the research on cadmium‐induced stress in plants? Food Energy Secur 2012. [DOI: 10.1002/fes3.10] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Ricardo A. Azevedo
- Departamento de Genética Escola Superior de Agricultura Luiz de Queiroz Universidade de São Paulo (USP) Piracicaba São Paulo Brazil
| | - Priscila L. Gratão
- Departamento de Biologia Aplicada à Agropecuária Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Jaboticabal São Paulo Brazil
| | - Carolina C. Monteiro
- Departamento de Biologia Aplicada à Agropecuária Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Jaboticabal São Paulo Brazil
| | - Rogério F. Carvalho
- Departamento de Biologia Aplicada à Agropecuária Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Jaboticabal São Paulo Brazil
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