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Chowardhara B, Saha B, Awasthi JP, Deori BB, Nath R, Roy S, Sarkar S, Santra SC, Hossain A, Moulick D. An assessment of nanotechnology-based interventions for cleaning up toxic heavy metal/metalloid-contaminated agroecosystems: Potentials and issues. CHEMOSPHERE 2024; 359:142178. [PMID: 38704049 DOI: 10.1016/j.chemosphere.2024.142178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 03/22/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024]
Abstract
Heavy metals (HMs) are among the most dangerous environmental variables for a variety of life forms, including crops. Accumulation of HMs in consumables and their subsequent transmission to the food web are serious concerns for scientific communities and policy makers. The function of essential plant cellular macromolecules is substantially hampered by HMs, which eventually have a detrimental effect on agricultural yield. Among these HMs, three were considered, i.e., arsenic, cadmium, and chromium, in this review, from agro-ecosystem perspective. Compared with conventional plant growth regulators, the use of nanoparticles (NPs) is a relatively recent, successful, and promising method among the many methods employed to address or alleviate the toxicity of HMs. The ability of NPs to reduce HM mobility in soil, reduce HM availability, enhance the ability of the apoplastic barrier to prevent HM translocation inside the plant, strengthen the plant's antioxidant system by significantly enhancing the activities of many enzymatic and nonenzymatic antioxidants, and increase the generation of specialized metabolites together support the effectiveness of NPs as stress relievers. In this review article, to assess the efficacy of various NP types in ameliorating HM toxicity in plants, we adopted a 'fusion approach', in which a machine learning-based analysis was used to systematically highlight current research trends based on which an extensive literature survey is planned. A holistic assessment of HMs and NMs was subsequently carried out to highlight the future course of action(s).
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Affiliation(s)
- Bhaben Chowardhara
- Department of Botany, Faculty of Science and Technology, Arunachal University of Studies, Namsai, Arunachal Pradesh-792103, India.
| | - Bedabrata Saha
- Plant Pathology and Weed Research Department, Newe Ya'ar Research Centre, Agricultural Research Organization, Ramat Yishay-3009500, Israel.
| | - Jay Prakash Awasthi
- Department of Botany, Government College Lamta, Balaghat, Madhya Pradesh 481551, India.
| | - Biswajit Bikom Deori
- Department of Environmental Science, Faculty of Science and Technology, Arunachal University of Studies, Namsai, Arunachal Pradesh 792103, India.
| | - Ratul Nath
- Department of Life-Science, Dibrugarh University, Dibrugarh, Assam-786004, India.
| | - Swarnendu Roy
- Department of Botany, University of North Bengal, P.O.- NBU, Dist- Darjeeling, West Bengal, 734013, India.
| | - Sukamal Sarkar
- Division of Agronomy, School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute, Narendrapur Campus, Kolkata, India.
| | - Subhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, 741235, India.
| | - Akbar Hossain
- Division of Soil Science, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh.
| | - Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, 741235, India.
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Ezaki K, Koga H, Takeda-Kamiya N, Toyooka K, Higaki T, Sakamoto S, Tsukaya H. Precocious cell differentiation occurs in proliferating cells in leaf primordia in Arabidopsis angustifolia3 mutant. FRONTIERS IN PLANT SCIENCE 2024; 15:1322223. [PMID: 38689848 PMCID: PMC11058843 DOI: 10.3389/fpls.2024.1322223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 04/02/2024] [Indexed: 05/02/2024]
Abstract
During leaf development, the timing of transition from cell proliferation to expansion is an important factor in determining the final organ size. However, the regulatory system involved in this transition remains less understood. To get an insight into this system, we investigated the compensation phenomenon, in which the cell number decreases while the cell size increases in organs with determinate growth. Compensation is observed in several plant species suggesting coordination between cell proliferation and expansion. In this study, we examined an Arabidopsis mutant of ANGUSTIFOLIA 3 (AN3)/GRF-INTERACTING FACTOR 1, a positive regulator of cell proliferation, which exhibits the compensation. Though the AN3 role has been extensively investigated, the mechanism underlying excess cell expansion in the an3 mutant remains unknown. Focusing on the early stage of leaf development, we performed kinematic, cytological, biochemical, and transcriptome analyses, and found that the cell size had already increased during the proliferation phase, with active cell proliferation in the an3 mutant. Moreover, at this stage, chloroplasts, vacuoles, and xylem cells developed earlier than in the wild-type cells. Transcriptome data showed that photosynthetic activity and secondary cell wall biosynthesis were activated in an3 proliferating cells. These results indicated that precocious cell differentiation occurs in an3 cells. Therefore, we suggest a novel AN3 role in the suppression of cell expansion/differentiation during the cell proliferation phase.
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Affiliation(s)
- Kazune Ezaki
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Hiroyuki Koga
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Noriko Takeda-Kamiya
- Technology Platform Division, Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, Japan
| | - Kiminori Toyooka
- Technology Platform Division, Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, Japan
| | - Takumi Higaki
- Faculty of Advanced Science and Technology, Kumamoto University, Chuo-ku, Kumamoto, Japan
- International Research Organization for Advanced Science and Technology, Kumamoto University, Chuo-ku, Kumamoto, Japan
| | - Shingo Sakamoto
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
| | - Hirokazu Tsukaya
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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Stanton C, Rodríguez-Celma J, Krämer U, Sanders D, Balk J. BRUTUS-LIKE (BTSL) E3 ligase-mediated fine-tuning of Fe regulation negatively affects Zn tolerance of Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:5767-5782. [PMID: 37393944 PMCID: PMC10540732 DOI: 10.1093/jxb/erad243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/01/2023] [Indexed: 07/04/2023]
Abstract
The mineral micronutrients zinc (Zn) and iron (Fe) are essential for plant growth and human nutrition, but interactions between the homeostatic networks of these two elements are not fully understood. Here we show that loss of function of BTSL1 and BTSL2, which encode partially redundant E3 ubiquitin ligases that negatively regulate Fe uptake, confers tolerance to Zn excess in Arabidopsis thaliana. Double btsl1 btsl2 mutant seedlings grown on high Zn medium accumulated similar amounts of Zn in roots and shoots to the wild type, but suppressed the accumulation of excess Fe in roots. RNA-sequencing analysis showed that roots of mutant seedlings had relatively higher expression of genes involved in Fe uptake (IRT1, FRO2, and NAS) and in Zn storage (MTP3 and ZIF1). Surprisingly, mutant shoots did not show the transcriptional Fe deficiency response which is normally induced by Zn excess. Split-root experiments suggested that within roots the BTSL proteins act locally and downstream of systemic Fe deficiency signals. Together, our data show that constitutive low-level induction of the Fe deficiency response protects btsl1 btsl2 mutants from Zn toxicity. We propose that BTSL protein function is disadvantageous in situations of external Zn and Fe imbalances, and formulate a general model for Zn-Fe interactions in plants.
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Affiliation(s)
- Camilla Stanton
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
| | | | - Ute Krämer
- Faculty of Biology and Biotechnology, Ruhr University Bochum, D-44801 Bochum, Germany
| | - Dale Sanders
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
| | - Janneke Balk
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, UK
- School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK
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Zhang H, Hu L, Du X, Shah AA, Ahmad B, Yang L, Mu Z. Response and Tolerance of Macleaya cordata to Excess Zinc Based on Transcriptome and Proteome Patterns. PLANTS (BASEL, SWITZERLAND) 2023; 12:2275. [PMID: 37375899 DOI: 10.3390/plants12122275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023]
Abstract
Macleaya cordata is a dominant plant of mine tailings and a zinc (Zn) accumulator with high Zn tolerance. In this study, M. cordata seedlings cultured in Hoagland solution were treated with 200 μmol·L-1 of Zn for 1 day or 7 days, and then, their leaves were taken for a comparative analysis of the transcriptomes and proteomes between the leaves of the control and Zn treatments. Differentially expressed genes included those that were iron (Fe)-deficiency-induced, such as vacuolar iron transporter VIT, ABC transporter ABCI17 and ferric reduction oxidase FRO. Those genes were significantly upregulated by Zn and could be responsible for Zn transport in the leaves of M. cordata. Differentially expressed proteins, such as chlorophyll a/b-binding proteins, ATP-dependent protease, and vacuolar-type ATPase located on the tonoplast, were significantly upregulated by Zn and, thus, could be important in chlorophyll biosynthesis and cytoplasm pH stabilization. Moreover, the changes in Zn accumulation, the production of hydrogen peroxide, and the numbers of mesophyll cells in the leaves of M. cordata were consistent with the expression of the genes and proteins. Thus, the proteins involved in the homeostasis of Zn and Fe are hypothesized to be the keys to the tolerance and accumulation of Zn in M. cordata. Such mechanisms in M. cordata can suggest novel approaches to genetically engineering and biofortifying crops.
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Affiliation(s)
- Hongxiao Zhang
- College of Agriculture, Henan University of Science and Technology, Luoyang 471000, China
| | - Linfeng Hu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Xinlong Du
- College of Agriculture, Henan University of Science and Technology, Luoyang 471000, China
| | - Assar Ali Shah
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Baseer Ahmad
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Liming Yang
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Zhiying Mu
- College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
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Zhang H, Hu L, Du X, Sun X, Wang T, Mu Z. Physiological and molecular response and tolerance of Macleaya cordata to lead toxicity. BMC Genomics 2023; 24:277. [PMID: 37226137 DOI: 10.1186/s12864-023-09378-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 05/14/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Macleaya cordata is a traditional medicinal herb, and it has high tolerance and accumulation ability to heavy metals, which make it a good candidate species for studying phytoremediation. The objectives of this study were to investigate response and tolerance of M. cordata to lead (Pb) toxicity based on comparative analysis of transcriptome and proteome. RESULTS In this study, the seedlings of M. cordata cultured in Hoagland solution were treated with 100 µmol·L- 1 Pb for 1 day (Pb 1d) or 7 days (Pb 7d), subsequently leaves of M. cordata were taken for the determination of Pb accumulation and hydrogen peroxide production (H2O2), meanwhile a total number of 223 significantly differentially expressed genes (DEGs) and 296 differentially expressed proteins (DEPs) were screened between control and Pb treatments. The results showed leaves of M. cordata had a special mechanism to maintain Pb at an appropriate level. Firstly, some DEGs were iron (Fe) deficiency-induced transporters, for example, genes of vacuolar iron transporter and three ABC transporter I family numbers were upregulated by Pb, which can maintain Fe homeostasis in cytoplasm or chloroplast. In addition, five genes of calcium (Ca2+) binding proteins were downregulated in Pb 1d, which may regulate cytoplasmic Ca2+ concentration and H2O2 signaling pathway. On the other hand, the cysteine synthase upregulated, glutathione S-transferase downregulated and glutathione reductase downregulated in Pb 7d can cause reduced glutathione accumulation and decrease Pb detoxification in leaves. Furthermore, DEPs of eight chlorophyll a/b binding proteins, five ATPases and eight ribosomal proteins can play a pivotal role on chloroplast turnover and ATP metabolism. CONCLUSIONS Our results suggest that the proteins involved in Fe homeostasis and chloroplast turnover in mesophyll cells may play key roles in tolerance of M. cordata to Pb. This study offers some novel insights into Pb tolerance mechanism of plants, and the potential valuable for environmental remediation of this important medicinal plant.
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Affiliation(s)
- Hongxiao Zhang
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471023, China.
| | - Linfeng Hu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300222, China
| | - Xinlong Du
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471023, China
| | - Xijing Sun
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471023, China
| | - Ting Wang
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471023, China
| | - Zhiying Mu
- College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou, 311300, China.
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Huertas R, Karpinska B, Ngala S, Mkandawire B, Maling'a J, Wajenkeche E, Kimani PM, Boesch C, Stewart D, Hancock RD, Foyer CH. Biofortification of common bean ( Phaseolus vulgaris L.) with iron and zinc: Achievements and challenges. Food Energy Secur 2023; 12:e406. [PMID: 38440694 PMCID: PMC10909572 DOI: 10.1002/fes3.406] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 06/01/2022] [Accepted: 06/08/2022] [Indexed: 03/06/2024] Open
Abstract
Micronutrient deficiencies (hidden hunger), particularly in iron (Fe) and zinc (Zn), remain one of the most serious public health challenges, affecting more than three billion people globally. A number of strategies are used to ameliorate the problem of micronutrient deficiencies and to improve the nutritional profile of food products. These include (i) dietary diversification, (ii) industrial food fortification and supplements, (iii) agronomic approaches including soil mineral fertilisation, bioinoculants and crop rotations, and (iv) biofortification through the implementation of biotechnology including gene editing and plant breeding. These efforts must consider the dietary patterns and culinary preferences of the consumer and stakeholder acceptance of new biofortified varieties. Deficiencies in Zn and Fe are often linked to the poor nutritional status of agricultural soils, resulting in low amounts and/or poor availability of these nutrients in staple food crops such as common bean. This review describes the genes and processes associated with Fe and Zn accumulation in common bean, a significant food source in Africa that plays an important role in nutritional security. We discuss the conventional plant breeding, transgenic and gene editing approaches that are being deployed to improve Fe and Zn accumulation in beans. We also consider the requirements of successful bean biofortification programmes, highlighting gaps in current knowledge, possible solutions and future perspectives.
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Affiliation(s)
- Raul Huertas
- Environmental and Biochemical SciencesThe James Hutton InstituteDundeeUK
| | - Barbara Karpinska
- School of Biosciences, College of Life and Environmental SciencesUniversity of BirminghamEdgbastonUK
| | - Sophia Ngala
- Department of Plant Science and Crop Protection, College of Agriculture and Veterinary SciencesUniversity of NairobiNairobiKenya
| | - Bertha Mkandawire
- The Food, Agriculture and Natural Resources Policy Analysis Network (FANRPAN)PretoriaSouth Africa
| | - Joyce Maling'a
- Kenya Agriculture and Livestock Research Organization (KALRO)Food Crops Research InstituteKitaleKenya
| | - Elizabeth Wajenkeche
- Kenya Agriculture and Livestock Research Organization (KALRO)Food Crops Research InstituteKitaleKenya
| | - Paul M. Kimani
- Department of Plant Science and Crop Protection, College of Agriculture and Veterinary SciencesUniversity of NairobiNairobiKenya
| | | | - Derek Stewart
- Environmental and Biochemical SciencesThe James Hutton InstituteDundeeUK
- School of Engineering and Physical SciencesHeriot‐Watt UniversityEdinburghUK
| | | | - Christine H. Foyer
- School of Biosciences, College of Life and Environmental SciencesUniversity of BirminghamEdgbastonUK
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Zhang H, Sun X, Hwarari D, Du X, Wang Y, Xu H, Lv S, Wang T, Yang L, Hou D. Oxidative Stress Response and Metal Transport in Roots of Macleaya cordata Exposed to Lead and Zinc. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12030516. [PMID: 36771604 PMCID: PMC9920459 DOI: 10.3390/plants12030516] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/19/2023] [Accepted: 01/19/2023] [Indexed: 05/31/2023]
Abstract
Heavy metal pollution possesses potential hazards to plant, animal and human health, which has become the focus of recent attention. Hence, phytoremediation has been regarded as one of the most important remediation technologies for heavy-metal-contaminated soils. In this research, a dominant mine tailing plant, Macleaya cordata, was used as the experimental material to compare the metal transport and oxidative stress response in its roots under lead (Pb) and zinc (Zn) treatments. The result showed that Pb was mainly accumulated in the roots of M. cordata under the Pb treatment; less than 1% Pb was transported to the parts above. An analysis of the Zn content demonstrated a 39% accumulation in the shoots. The production of reactive oxygen species was detected using the in situ histological staining of roots, which showed that hydrogen peroxide in the root tips was observed to increase with the increase in both Pb and Zn concentrations. No significant superoxide anion changes were noted in the root tips under the Pb treatment. An analysis of the root enzyme activity showed that increase in NADPH oxidase activity can be responsible for the production of superoxide anions, subsequent the inhibition of root growth and decrease in antioxidant enzyme activities in the roots of M. cordata exposed to excess Zn. In total, this research provides evidence that the root of M. cordata has a high antioxidant capacity for Pb stress, so it can accumulate more Pb without oxidative damage. On the other hand, the Zn accumulated in the roots of M. cordata causes oxidative damage to the root tips, which can stimulate more Zn transport to the shoots to reduce the damage to the roots. This result will provide a basis for the application of M. cordata in the phytoremediation of soil polluted by Pb-Zn compounds.
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Affiliation(s)
- Hongxiao Zhang
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Xijing Sun
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Delight Hwarari
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Xinlong Du
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Yinghao Wang
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Huawei Xu
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Shufang Lv
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Ting Wang
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Liming Yang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Dianyun Hou
- College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China
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Wang Z, Wang Y, Du Q, Yan P, Yu B, Li WX, Zou CQ. The auxin signaling pathway contributes to phosphorus-mediated zinc homeostasis in maize. BMC PLANT BIOLOGY 2023; 23:20. [PMID: 36627574 PMCID: PMC9830811 DOI: 10.1186/s12870-023-04039-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Although the interaction between P and Zn has long been recognized in plants, the physiological and molecular mechanisms underlying P and Zn interactions are poorly understood. We show here that P supply decreases the Zn concentration in maize shoots and roots. Compared to +P + Zn (addition of both P and Zn), +P-Zn reduced and -P-Zn increased the total length of 1° lateral roots (LRs). Under +P + Zn, both P and Zn concentrations were lower in the sl1 mutant roots than in wild-type (WT) maize roots, and P accumulation did not reduce the Zn concentration in ll1 mutant roots. Transcriptome profiling showed that the auxin signaling pathway contributed to P-mediated Zn homeostasis in maize. Auxin production and distribution were altered by changes in P and Zn supply. Cytosolic Zn co-localized with auxin accumulation under +P + Zn. Exogenous application of 1-NAA and L-Kyn altered the P-mediated root system architecture (RSA) under Zn deficiency. -P-Zn repressed the expression of miR167. Overexpression of ZmMIR167b increased the lengths of 1° LRs and the concentrations of P and Zn in maize. These results indicate that auxin-dependent RSA is important for P-mediated Zn homeostasis in maize.HighlightAuxin-dependent RSA is important for P-mediated Zn homeostasis in maize.
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Affiliation(s)
- Zhonghua Wang
- College of Resources and Environmental Sciences; National Academy of Agriculture Green Development; Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Yafei Wang
- National Engineering Laboratory for Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Qingguo Du
- National Engineering Laboratory for Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Pengshuai Yan
- National Engineering Laboratory for Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Baogang Yu
- College of Resources and Environmental Sciences; National Academy of Agriculture Green Development; Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Wen-Xue Li
- National Engineering Laboratory for Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Chun-Qin Zou
- College of Resources and Environmental Sciences; National Academy of Agriculture Green Development; Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing, 100193 People’s Republic of China
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Claeijs N, Vissenberg K. Phenotypic effect of growth media on Arabidopsis thaliana root hair growth. PLANT SIGNALING & BEHAVIOR 2022; 17:2104002. [PMID: 36000477 PMCID: PMC9466613 DOI: 10.1080/15592324.2022.2104002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/15/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Over the years, many different growth media have been used to grow Arabidopsis thaliana in vitro in petri dishes. For these media the nutrient composition may vary, sugars may or may not be added, the medium may or may not be buffered and there is a choice between different gelling agents. The magnitude of possible combinations of these variables obstructs easy comparison of seedling phenotypes grown on the different media. This is especially obvious when it concerns the study of root hairs that are extremely sensitive to changes in their environment. To demonstrate this effect, we have grown Arabidopsis thaliana wild-type seeds on 18 different combinations of growth media and quantified root hair development. Comparison of root hair length and the respective root hair profiles identified the media that result in the formation of the longest root hairs. On these favored media they elongate through tip growth at a constant growth rate until they reach their final length (around 0.6 mm) at a distance of ±4 mm from the root tip.
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Affiliation(s)
- Naomi Claeijs
- Integrated Molecular Plant Physiology Research (IMPRES); Biology Department, University of Antwerp, Antwerp, Belgium
| | - Kris Vissenberg
- Integrated Molecular Plant Physiology Research (IMPRES); Biology Department, University of Antwerp, Antwerp, Belgium
- Plant Biochemistry & Biotechnology Lab, Department of Agriculture, Hellenic Mediterranean University, Heraklion, Greece
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Langenbach T, Pessoa DMM, Soares MLG, Magdaleno ACRM, Hagler A, de Campos TMP. Zinc and cadmium contamination in an Avicennia schaueriana mangrove environment: Mass balance and tissue distribution. MARINE POLLUTION BULLETIN 2022; 184:114170. [PMID: 36307951 DOI: 10.1016/j.marpolbul.2022.114170] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
The leachate pond of a Zn processing plant in Rio de Janeiro, Brazil, released Zn and Cd into a mangrove during three decades. Soil, root, stems, leaves and phloem bark samples of Avicenna schaueriana from the mangrove were collected and analyzed. Zn and Cd levels were measured by atomic absorption and were much more concentrated in soil at 76 kg/ha and 424 kg/ha respectively than in the trees (272.3 kg/ha Zn and 0.046 kg/ha Cd). This species shows a protective mechanism against uptake. The high content of Cd in the bark phloem was due to exposure to tidal flooding with high concentrations of Cd, not translocation from the roots. Allometry, and the biomass of roots, stems, leaves and bark showed that only a small percentage was phytoextracted by A. schaueriana, so this species under the described concentrations cannot phytoaccumulate and should not be used in phytoextraction.
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Affiliation(s)
- Tomaz Langenbach
- Department of Civil and Environmental Engineering, Pontifical Catholic University of Rio de Janeiro, Scientific Technical Center (CTC), Rua Marquês de São Vicente, Rio de Janeiro 22451-900, Brazil.
| | - Denise Maria Mano Pessoa
- Department of Civil and Environmental Engineering, Pontifical Catholic University of Rio de Janeiro, Scientific Technical Center (CTC), Rua Marquês de São Vicente, Rio de Janeiro 22451-900, Brazil.
| | - Mário Luiz Gomes Soares
- Faculty of Oceanography, Center for Technology and Sciences, Rio de Janeiro State University, Rua São Francisco Xavier, Maracanã, Rio de Janeiro 20550013, Brazil.
| | - Anna Carolina Ribeiro Mendes Magdaleno
- Post-graduation in Plant Biotechnology Program, Health Sciences Center (CCS), Block K, Federal University of Rio de Janeiro, Cidade Universitária, Rio de Janeiro 21941-902, Brazil.
| | - Allen Hagler
- Department of General Microbiology, Institute of Microbiology Professor Paulo de Góes, Health Sciences Center (CCS), Block I, Federal University of Rio de Janeiro, Cidade Universitária, Rio de Janeiro 21941-902, Brazil.
| | - Tácio Mauro Pereira de Campos
- Department of Civil and Environmental Engineering, Pontifical Catholic University of Rio de Janeiro, Scientific Technical Center (CTC), Rua Marquês de São Vicente, Rio de Janeiro 22451-900, Brazil.
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11
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Jue D, Liu L, Sang X, Shi S. A comparative proteomic analysis provides insight into the molecular mechanism of bud break in longan. BMC PLANT BIOLOGY 2022; 22:486. [PMID: 36224553 PMCID: PMC9558362 DOI: 10.1186/s12870-022-03868-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND The timing of bud break is very important for the flowering and fruiting of longan. To obtain new insights into the underlying regulatory mechanism of bud break in longan, a comparative analysis was conducted in three flower induction stages of two longan varieties with opposite flowering phenotypes by using isobaric tags for relative and absolute quantification (iTRAQ). RESULTS In total, 3180 unique proteins were identified in 18 samples, and 1101 differentially abundant proteins (DAPs) were identified. "SX" ("Shixia"), a common longan cultivated variety that needs an appropriate period of low temperatures to accumulate energy and nutrients for flower induction, had a strong primary inflorescence, had a strong axillary inflorescence, and contained high contents of sugars, and most DAPs during the bud break process were enriched in assimilates and energy metabolism. Combined with our previous transcriptome data, it was observed that sucrose synthase 6 (SS6) and granule-bound starch synthase 1 (GBSSI) might be the key DAPs for "SX" bud break. Compared to those of "SX", the primary inflorescence, axillary inflorescence, floral primordium, bract, and prophyll of "SJ" ("Sijimi") were weaker. In addition, light, rather than a high sugar content or chilling duration, might act as the key signal for triggering bud break. In addition, catalase isozyme 1, an important enzyme in the redox cycle, and RuBisCO, a key enzyme in the Calvin cycle of photosynthetic carbon assimilation, might be the key DAPs for SJ bud break. CONCLUSION Our results present a dynamic picture of the bud break of longan, not only revealing the temporal specific expression of key candidate genes and proteins but also providing a scientific basis for the genetic improvement of this fruit tree species.
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Affiliation(s)
- Dengwei Jue
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Center of Special Plant Industry in Chongqing, Chongqing Engineering Research Center for Special Plant Seedling, Institute of Special Plants, Chongqing University of Arts and Sciences, 402160, Yongchuan, China
- Key Laboratory of Horticulture Science for Southern Mountains Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, 400715, Beibei, Chongqing, China
| | - Liqin Liu
- Key Laboratory of Tropical Fruit Biology (Ministry of Agriculture), South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, 524091, Zhanjiang, China
| | - Xuelian Sang
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Center of Special Plant Industry in Chongqing, Chongqing Engineering Research Center for Special Plant Seedling, Institute of Special Plants, Chongqing University of Arts and Sciences, 402160, Yongchuan, China.
| | - Shengyou Shi
- Key Laboratory of Tropical Fruit Biology (Ministry of Agriculture), South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, 524091, Zhanjiang, China.
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12
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Hassan SH, Sferra G, Simiele M, Scippa GS, Morabito D, Trupiano D. Root and shoot biology of Arabidopsis halleri dissected by WGCNA: an insight into the organ pivotal pathways and genes of an hyperaccumulator. Funct Integr Genomics 2022; 22:1159-1172. [PMID: 36094581 DOI: 10.1007/s10142-022-00897-x] [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: 06/29/2022] [Revised: 08/15/2022] [Accepted: 08/31/2022] [Indexed: 11/27/2022]
Abstract
Arabidopsis halleri is a hyperaccumulating pseudo-metallophyte and an emerging model to explore molecular basis of metal tolerance and hyperaccumulation. In this regard, understanding of interacting genes can be a crucial aspect as these interactions regulate several biological functions at molecular level in response to multiple signals. In this current study, we applied a weighted gene co-expression network analysis (WGCNA) on root and shoot RNA-seq data of A. halleri to predict the related scale-free organ specific co-expression networks, for the first time. A total of 19,653 genes of root and 18,081 genes of shoot were grouped into 14 modules and subjected to GO and KEGG enrichment analysis. "Photosynthesis" and "photosynthesis-antenna proteins" were identified as the most enriched and common pathway to both root and shoot. Whereas "glucosinolate biosynthesis," "autophagy," and "SNARE interactions in vesicular transport" were specific to root, and "circadian rhythm" was found to be enriched only in shoot. Later, hub and bottleneck genes were identified in each module by using cytoHubba plugin based on Cytoscape and scoring the relevance of each gene to the topology of the network. The modules with the most significant differential expression pattern across control and treatment (Cd-Zn treatment) were selected and their hub and bottleneck genes were screened to validate their possible involvement in heavy metal stress. Moreover, we combined the analysis of co-expression modules together with protein-protein interactions (PPIs), confirming some genes as potential candidates in plant heavy metal stress and as biomarkers. The results from this analysis shed the light on the pivotal functions to the hyperaccumulative trait of A. halleri, giving perspective to new paths for future research on this species.
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Affiliation(s)
- Sayyeda Hira Hassan
- Department of Biosciences and Territory, University of Molise, 86090, Pesche, Italy
| | - Gabriella Sferra
- Department of Biosciences and Territory, University of Molise, 86090, Pesche, Italy.
| | - Melissa Simiele
- Department of Biosciences and Territory, University of Molise, 86090, Pesche, Italy
| | | | - Domenico Morabito
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC-EA1207), Université d'Orléans, 45067, Orléans CEDEX 2, France
| | - Dalila Trupiano
- Department of Biosciences and Territory, University of Molise, 86090, Pesche, Italy
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13
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Silva SVE, Gallia MC, da Luz JRD, de Rezende AA, Bongiovanni GA, Araujo-Silva G, Almeida MDG. Antioxidant Effect of Coenzyme Q10 in the Prevention of Oxidative Stress in Arsenic-Treated CHO-K1 Cells and Possible Participation of Zinc as a Pro-Oxidant Agent. Nutrients 2022; 14:nu14163265. [PMID: 36014770 PMCID: PMC9412518 DOI: 10.3390/nu14163265] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress is an imbalance between levels of reactive oxygen species (ROS) and antioxidant enzymes. Compounds with antioxidant properties, such as coenzyme Q10 (CoQ10), can reduce cellular imbalance caused by an increase in ROS. CoQ10 participates in modulating redox homeostasis due to its antioxidant activity and its preserving mitochondrial functions. Thus, the present study demonstrated the protective effects of CoQ10 against oxidative stress and cytotoxicity induced by arsenic (As). Antioxidant capacity, formation of hydroperoxides, generation of ROS, and the effect on cellular viability of CoQ10, were investigated to determine the protective effect of CoQ10 against As and pro-oxidant compounds, such as zinc. Cell viability assays showed that CoQ10 is cytoprotective under cellular stress conditions, with potent antioxidant activity, regardless of the concentration tested. Zn, when used at higher concentrations, can increase ROS and show a pro-oxidant effect causing cell damage. The cytotoxic effect observed for As, Zn, or the combination of both could be prevented by CoQ10, without any decrease in its activity at cellular levels when combined with Zn.
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Affiliation(s)
- Saulo Victor e Silva
- Post-Graduation Program in Pharmaceutical Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, Federal University of the Rio Grande do Norte (UFRN), Natal 59012570, Brazil
| | - María Celeste Gallia
- Institute of Research and Development in Process Engineering, Biotechnology and Alternative Energies (PROBIEN), National Council for Scientific and Technical Research (CONICET), School of Agricultural Sciences, Neuquén 8300, Argentina
| | - Jefferson Romáryo Duarte da Luz
- Post-Graduation Program in Health Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, UFRN, Natal 59012570, Brazil
- Organic Chemistry and Biochemistry Laboratory, State University of Amapá (UEAP), Macapá 68900070, Brazil
| | - Adriana Augusto de Rezende
- Post-Graduation Program in Pharmaceutical Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, Federal University of the Rio Grande do Norte (UFRN), Natal 59012570, Brazil
- Post-Graduation Program in Health Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, UFRN, Natal 59012570, Brazil
| | - Guillermina Azucena Bongiovanni
- Institute of Research and Development in Process Engineering, Biotechnology and Alternative Energies (PROBIEN), National Council for Scientific and Technical Research (CONICET), School of Agricultural Sciences, Neuquén 8300, Argentina
| | - Gabriel Araujo-Silva
- Organic Chemistry and Biochemistry Laboratory, State University of Amapá (UEAP), Macapá 68900070, Brazil
| | - Maria das Graças Almeida
- Post-Graduation Program in Pharmaceutical Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, Federal University of the Rio Grande do Norte (UFRN), Natal 59012570, Brazil
- Post-Graduation Program in Health Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, UFRN, Natal 59012570, Brazil
- Sciences Center, UFRN, Natal 59012570, Brazil
- Correspondence:
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14
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Seidel T. The Plant V-ATPase. FRONTIERS IN PLANT SCIENCE 2022; 13:931777. [PMID: 35845650 PMCID: PMC9280200 DOI: 10.3389/fpls.2022.931777] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/03/2022] [Indexed: 05/25/2023]
Abstract
V-ATPase is the dominant proton pump in plant cells. It contributes to cytosolic pH homeostasis and energizes transport processes across endomembranes of the secretory pathway. Its localization in the trans Golgi network/early endosomes is essential for vesicle transport, for instance for the delivery of cell wall components. Furthermore, it is crucial for response to abiotic and biotic stresses. The V-ATPase's rather complex structure and multiple subunit isoforms enable high structural flexibility with respect to requirements for different organs, developmental stages, and organelles. This complexity further demands a sophisticated assembly machinery and transport routes in cells, a process that is still not fully understood. Regulation of V-ATPase is a target of phosphorylation and redox-modifications but also involves interactions with regulatory proteins like 14-3-3 proteins and the lipid environment. Regulation by reversible assembly, as reported for yeast and the mammalian enzyme, has not be proven in plants but seems to be absent in autotrophic cells. Addressing the regulation of V-ATPase is a promising approach to adjust its activity for improved stress resistance or higher crop yield.
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15
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Cheng S, Wang Q, Manghwar H, Liu F. Autophagy-Mediated Regulation of Different Meristems in Plants. Int J Mol Sci 2022; 23:ijms23116236. [PMID: 35682913 PMCID: PMC9180974 DOI: 10.3390/ijms23116236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/01/2022] [Accepted: 06/01/2022] [Indexed: 02/07/2023] Open
Abstract
Autophagy is a highly conserved cell degradation process that widely exists in eukaryotic cells. In plants, autophagy helps maintain cellular homeostasis by degrading and recovering intracellular substances through strict regulatory pathways, thus helping plants respond to a variety of developmental and environmental signals. Autophagy is involved in plant growth and development, including leaf starch degradation, senescence, anthers development, regulation of lipid metabolism, and maintenance of peroxisome mass. More and more studies have shown that autophagy plays a role in stress response and contributes to maintain plant survival. The meristem is the basis for the formation and development of new tissues and organs during the post-embryonic development of plants. The differentiation process of meristems is an extremely complex process, involving a large number of morphological and structural changes, environmental factors, endogenous hormones, and molecular regulatory mechanisms. Recent studies have demonstrated that autophagy relates to meristem development, affecting plant growth and development under stress conditions, especially in shoot and root apical meristem. Here, we provide an overview of the current knowledge about how autophagy regulates different meristems under different stress conditions and possibly provide new insights for future research.
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Affiliation(s)
| | | | | | - Fen Liu
- Correspondence: (H.M.); (F.L.)
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16
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Fanara S, Schloesser M, Hanikenne M, Motte P. Altered metal distribution in the sr45-1 Arabidopsis mutant causes developmental defects. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 110:1332-1352. [PMID: 35305053 DOI: 10.1111/tpj.15740] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
The plant serine/arginine-rich (SR) splicing factor SR45 plays important roles in several biological processes, such as splicing, DNA methylation, innate immunity, glucose regulation, and abscisic acid signaling. A homozygous Arabidopsis sr45-1 null mutant is viable, but exhibits diverse phenotypic alterations, including delayed root development, late flowering, shorter siliques with fewer seeds, narrower leaves and petals, and unusual numbers of floral organs. Here, we report that the sr45-1 mutant presents an unexpected constitutive iron deficiency phenotype characterized by altered metal distribution in the plant. RNA-Sequencing highlighted severe perturbations in metal homeostasis, the phenylpropanoid pathway, oxidative stress responses, and reproductive development. Ionomic quantification and histochemical staining revealed strong iron accumulation in the sr45-1 root tissues accompanied by iron starvation in aerial parts. Mis-splicing of several key iron homeostasis genes, including BTS, bHLH104, PYE, FRD3, and ZIF1, was observed in sr45-1 roots. We showed that some sr45-1 developmental abnormalities can be complemented by exogenous iron supply. Our findings provide new insight into the molecular mechanisms governing the phenotypes of the sr45-1 mutant.
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Affiliation(s)
- Steven Fanara
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging and Centre for Assistance in Technology of Microscopy (CAREm), University of Liège, 4000, Liège, Belgium
| | - Marie Schloesser
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging and Centre for Assistance in Technology of Microscopy (CAREm), University of Liège, 4000, Liège, Belgium
| | - Marc Hanikenne
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging and Centre for Assistance in Technology of Microscopy (CAREm), University of Liège, 4000, Liège, Belgium
| | - Patrick Motte
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging and Centre for Assistance in Technology of Microscopy (CAREm), University of Liège, 4000, Liège, Belgium
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17
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Nyiraguhirwa S, Grana Z, Ouabbou H, Iraqi D, Ibriz M, Mamidi S, Udupa SM. A Genome-Wide Association Study Identifying Single-Nucleotide Polymorphisms for Iron and Zinc Biofortification in a Worldwide Barley Collection. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11101349. [PMID: 35631775 PMCID: PMC9148054 DOI: 10.3390/plants11101349] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/28/2022] [Accepted: 05/05/2022] [Indexed: 05/12/2023]
Abstract
Micronutrient deficiency affects half of the world’s population, mostly in developing countries. Severe health issues such as anemia and inadequate growth in children below five years of age and pregnant women have been linked to mineral deficiencies (mostly zinc and iron). Improving the mineral content in staple crops, also known as mineral biofortification, remains the best approach to address mineral malnutrition. Barley is a staple crop in some parts of the world and is a healthy choice since it contains β-glucan, a high dietary protein. Barley mineral biofortification, especially with zinc and iron, can be beneficial since barley easily adapts to marginalized areas and requires less input than other frequently consumed cereals. In this study, we analyzed zinc and iron content in 496 barley samples. The samples were genotyped with an Illumina 50 K SNP chip. Genome-wide association studies (GWAS) identified 62 SNPs and 68 SNPs (p < 0.001) associated with iron and zinc content in grains, respectively. After a Bonferroni correction (p < 0.005), there were 12 SNPs (single-nucleotide polymorphism) associated with Zn and 6 for iron. SNP annotations revealed proteins involved in membrane transport, Zn and Fe binding, linked to nutrient remobilization in grains. These results can be used to develop biofortified barley via marker-assisted selection (MAS), which could alleviate mineral malnutrition.
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Affiliation(s)
- Solange Nyiraguhirwa
- International Center for Agriculture Research in Dry Areas (ICARDA), Rue Hafiane Chekaoui, P.O. Box 6299, Rabat 10000, Morocco; (S.N.); (Z.G.)
- Institut National de Recherche Agronomique (INRA), Avenue Ennasr, P.O. Box 415, Rabat 10080, Morocco; (H.O.); (D.I.)
- Faculty of Sciences, Ibn Tofail University, University Campus, P.O. Box 133, Kénitra 14000, Morocco;
| | - Zahra Grana
- International Center for Agriculture Research in Dry Areas (ICARDA), Rue Hafiane Chekaoui, P.O. Box 6299, Rabat 10000, Morocco; (S.N.); (Z.G.)
- Institut National de Recherche Agronomique (INRA), Avenue Ennasr, P.O. Box 415, Rabat 10080, Morocco; (H.O.); (D.I.)
- Faculty of Sciences, Ibn Tofail University, University Campus, P.O. Box 133, Kénitra 14000, Morocco;
| | - Hassan Ouabbou
- Institut National de Recherche Agronomique (INRA), Avenue Ennasr, P.O. Box 415, Rabat 10080, Morocco; (H.O.); (D.I.)
| | - Driss Iraqi
- Institut National de Recherche Agronomique (INRA), Avenue Ennasr, P.O. Box 415, Rabat 10080, Morocco; (H.O.); (D.I.)
| | - Mohammed Ibriz
- Faculty of Sciences, Ibn Tofail University, University Campus, P.O. Box 133, Kénitra 14000, Morocco;
| | - Sujan Mamidi
- Hudson Alpha Institute for Biotechnology, 601 Genome Way Northwest, Huntsville, AL 35806, USA;
| | - Sripada M. Udupa
- International Center for Agriculture Research in Dry Areas (ICARDA), Rue Hafiane Chekaoui, P.O. Box 6299, Rabat 10000, Morocco; (S.N.); (Z.G.)
- Correspondence: ; Tel.: +212-673346102
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18
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Hao P, Lv X, Fu M, Xu Z, Tian J, Wang Y, Zhang X, Xu X, Wu T, Han Z. Long-distance mobile mRNA CAX3 modulates iron uptake and zinc compartmentalization. EMBO Rep 2022; 23:e53698. [PMID: 35254714 PMCID: PMC9066076 DOI: 10.15252/embr.202153698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 01/25/2022] [Accepted: 02/24/2022] [Indexed: 12/15/2022] Open
Abstract
Iron deficiency in plants can lead to excessive absorption of zinc; however, important details of this mechanism have yet to be elucidated. Here, we report that MdCAX3 mRNA is transported from the leaf to the root, and that MdCAX3 is then activated by MdCXIP1. Suppression of MdCAX3 expression leads to an increase in the root apoplastic pH, which is associated with the iron deficiency response. Notably, overexpression of MdCAX3 does not affect the apoplastic pH in a MdCXIP1 loss-of-function Malus baccata (Mb) mutant that has a deletion in the MdCXIP1 promoter. This deletion in Mb weakens MdCXIP1 expression. Co-expression of MdCAX3 and MdCXIP1 in Mb causes a decrease in the root apoplastic pH. Furthermore, suppressing MdCAX3 in Malus significantly reduces zinc vacuole compartmentalization. We also show that MdCAX3 activated by MdCXIP1 is not only involved in iron uptake, but also in regulating zinc detoxification by compartmentalizing zinc in vacuoles to avoid iron starvation-induced zinc toxicity. Thus, mobile MdCAX3 mRNA is involved in the regulation of iron and zinc homeostasis in response to iron starvation.
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Affiliation(s)
- Pengbo Hao
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Xinmin Lv
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Mengmeng Fu
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Zhen Xu
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Ji Tian
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Yi Wang
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Xinzhong Zhang
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Xuefeng Xu
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Ting Wu
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
| | - Zhenhai Han
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, China
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Amini S, Arsova B, Hanikenne M. The molecular basis of zinc homeostasis in cereals. PLANT, CELL & ENVIRONMENT 2022; 45:1339-1361. [PMID: 35037265 DOI: 10.1111/pce.14257] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 11/12/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Plants require zinc (Zn) as an essential cofactor for diverse molecular, cellular and physiological functions. Zn is crucial for crop yield, but is one of the most limiting micronutrients in soils. Grasses like rice, wheat, maize and barley are crucial sources of food and nutrients for humans. Zn deficiency in these species therefore not only reduces annual yield but also directly results in Zn malnutrition of more than two billion people in the world. There has been good progress in understanding Zn homeostasis and Zn deficiency mechanisms in plants. However, our current knowledge of monocots, including grasses, remains insufficient. In this review, we provide a summary of our knowledge of molecular Zn homeostasis mechanisms in monocots, with a focus on important cereal crops. We additionally highlight divergences in Zn homeostasis of monocots and the dicot model Arabidopsis thaliana, as well as important gaps in our knowledge that need to be addressed in future research on Zn homeostasis in cereal monocots.
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Affiliation(s)
- Sahand Amini
- InBioS-PhytoSystems, Translational Plant Biology, University of Liège, Liège, Belgium
| | - Borjana Arsova
- Root Dynamics Group, IBG-2 - Plant Sciences, Institut für Bio- und Geowissenschaften (IBG), Forschungszentrum, Jülich, Germany
| | - Marc Hanikenne
- InBioS-PhytoSystems, Translational Plant Biology, University of Liège, Liège, Belgium
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20
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Quantitative Estimation of Synergistic Toxicity of Cu and Zn on Growth of Arabidopsis thaliana by Isobolographic Method. TOXICS 2022; 10:toxics10040195. [PMID: 35448456 PMCID: PMC9031100 DOI: 10.3390/toxics10040195] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 02/01/2023]
Abstract
Heavy metal is one of the most frequent soil contaminants and contaminated soils generally include numerous metals. Although exposure to multiple metals may increase the toxicity to humans and ecosystems, only additive effects are considered in the risk assessment. In this study, the synergistic effect of heavy metals (Cu and Zn) on a model plant, Arabidopsis thaliana, was quantified by the isobolographic method. The plant was cultured via the growth assay method on a plant agar containing individual heavy metals or combinations of Cu + Zn in a growth chamber. The concentration of Cu varied by eight levels from 0 to 200 μM and the concentration of Zn also varied by eight levels from 0 to 400 μM. In the combination of metals, each of the three levels of Cu (25–75 μM) and Zn (20–100 μM) were applied. After 8 days, plants were harvested for root/shoot weight and measured for leaf chlorophyll and carotenoid content. The primary and secondary root elongation of A. thaliana was estimated using image analysis to calculate total root length. The EC50 values of Cu and Zn on A. thaliana, based on the total root length, were 40.0 and 76.4 μM, respectively. When two heavy metals were administered in combination, the EC values decreased less than those of the individual metals. The average value of the combination index was 0.6, proving the synergistic toxic effect on the root growth of A. Thaliana. As a result, the isobolograhic method is a useful tool for estimating the quantitative toxic effect of chemicals on plants.
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21
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Lešková A, Javot H, Giehl RFH. Metal crossroads in plants: modulation of nutrient acquisition and root development by essential trace metals. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1751-1765. [PMID: 34791130 DOI: 10.1093/jxb/erab483] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
The metals iron, zinc, manganese, copper, molybdenum, and nickel are essential for the growth and development of virtually all plant species. Although these elements are required at relatively low amounts, natural factors and anthropogenic activities can significantly affect their availability in soils, inducing deficiencies or toxicities in plants. Because essential trace metals can shape root systems and interfere with the uptake and signaling mechanisms of other nutrients, the non-optimal availability of any of them can induce multi-element changes in plants. Interference by one essential trace metal with the acquisition of another metal or a non-metal nutrient can occur prior to or during root uptake. Essential trace metals can also indirectly impact the plant's ability to capture soil nutrients by targeting distinct root developmental programs and hormone-related processes, consequently inducing largely metal-specific changes in root systems. The presence of metal binding domains in many regulatory proteins also enables essential trace metals to coordinate nutrient uptake by acting at high levels in hierarchical signaling cascades. Here, we summarize the known molecular and cellular mechanisms underlying trace metal-dependent modulation of nutrient acquisition and root development, and highlight the importance of considering multi-element interactions to breed crops better adapted to non-optimal trace metal availabilities.
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Affiliation(s)
- Alexandra Lešková
- Aix Marseille Univ, CEA, CNRS, Bioscience and Biotechnology Institut of Aix-Marseille (BIAM), SAVE, Saint Paul-Lez-Durance, F-13108, France
| | - Hélène Javot
- Aix Marseille Univ, CEA, CNRS, Bioscience and Biotechnology Institut of Aix-Marseille (BIAM), SAVE, Saint Paul-Lez-Durance, F-13108, France
| | - Ricardo F H Giehl
- Department of Physiology & Cell Biology, Leibniz-Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, 06466 Seeland, Germany
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22
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van Dijk JR, Kranchev M, Blust R, Cuypers A, Vissenberg K. Arabidopsis root growth and development under metal exposure presented in an adverse outcome pathway framework. PLANT, CELL & ENVIRONMENT 2022; 45:737-750. [PMID: 34240430 PMCID: PMC9290988 DOI: 10.1111/pce.14147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 05/06/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
Due to human activities, soils become more and more polluted with metals, which imposes risks for human health and wildlife welfare. As most of the metals end up in the food chain through accumulation in plants, we need to establish science-based environmental criteria and risk management policies. To meet these necessities, a thorough understanding is required of how these metals accumulate in and affect plants. Many studies have been conducted towards this aim, but strikingly, only a few entries can be found in ecotoxicological databases, especially on Arabidopsis thaliana, which serves as a model species for plant (cell) physiology and genetic studies. As experimental conditions seem to vary considerably throughout literature, extrapolation or comparison of data is rather difficult or should be approached with caution. Furthermore, metal-polluted soils often contain more than one metal, yet limited studies investigated the impact of metal mixtures on plants. This review aims to compile all data concerning root system architecture under Cu, Cd and Zn stress, in single or multi-metal exposure in A. thaliana, and link it to metal-induced responses at different biological levels. Global incorporation into an adverse outcome pathway framework is presented.
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Affiliation(s)
- Jesper R. van Dijk
- Integrated Molecular Plant Physiology Research, Department of BiologyUniversity of AntwerpAntwerpBelgium
- Adrem Data Lab, Department of Mathematics and Computer Science and Biomedical Informatics Research Network Antwerp (Biomina)University of AntwerpAntwerpBelgium
| | - Mario Kranchev
- Integrated Molecular Plant Physiology Research, Department of BiologyUniversity of AntwerpAntwerpBelgium
| | - Ronny Blust
- Systemic Physiological and Ecotoxicological Research, Department of BiologyUniversity of AntwerpAntwerpBelgium
| | - Ann Cuypers
- Environmental Biology, Centre for Environmental SciencesHasselt UniversityHasseltBelgium
| | - Kris Vissenberg
- Integrated Molecular Plant Physiology Research, Department of BiologyUniversity of AntwerpAntwerpBelgium
- Plant Biochemistry & Biotechnology Lab, Department of AgricultureHellenic Mediterranean UniversityHeraklionGreece
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Tang X, Shi F, Wang Y, Huang S, Zhao Y, Feng H. Proteomic analysis of a plastid gene encoding RPS4 mutant in Chinese cabbage (Brassica campestris L. ssp. pekinensis). Funct Integr Genomics 2021; 22:113-130. [PMID: 34881421 DOI: 10.1007/s10142-021-00808-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/20/2021] [Accepted: 09/18/2021] [Indexed: 10/19/2022]
Abstract
Plastids are important plant cell organelles containing a genome and bacterial-type 70S ribosomes-primarily composed of plastid ribosomal proteins and ribosomal RNAs. In this study, a chlorophyll-deficient mutant (cdm) obtained from double-haploid Chinese cabbage 'FT' was identified as a plastome mutant with an A-to-C base substitution in the plastid gene encoding the ribosomal protein RPS4. To further elucidate the function and regulatory mechanisms of RPS4, a comparative proteomic analysis was conducted between cdm and its wild-type 'FT' plants by isobaric tags and a relative and absolute quantitation (iTRAQ)-based strategy. A total of 6,245 proteins were identified, 540 of which were differentially abundant proteins (DAPs) in the leaves of cdm as compared to those of 'FT'-including 233 upregulated and 307 downregulated proteins. Upregulated DAPs were mainly involved in translation, organonitrogen compound biosynthetic process, ribosomes, and spliceosomes. Meanwhile, downregulated DAPs were mainly involved in photosynthesis, photosynthetic reaction centres, photosynthetic light harvesting, carbon fixation, and chlorophyll binding. These results indicated an important role of RPS4 in the regulation of growth and development of Chinese cabbage, possibly by regulating plastid translation activity by affecting the expression of specific photosynthesis- and cold stress-related proteins. Moreover, a multiple reaction monitoring (MRM) test and quantitative real-time polymerase chain reaction analysis confirmed our iTRAQ results. Quantitative proteomic analysis allowed us to confirm diverse changes in the metabolic pathways between cdm and 'FT' plants. This work provides new insights into the regulation of chlorophyll biosynthesis and photosynthesis in Chinese cabbage.
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Affiliation(s)
- Xiaoyan Tang
- Department of Horticulture, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang, 110866, China.,Anhui Provincial Engineering Laboratory of Horticultural Crop Breeding College of Horticulture, Anhui Agricultural University, 130 Changjiang West Road, Shushan District, Hefei, China
| | - Fengyan Shi
- Department of Horticulture, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang, 110866, China
| | - Yiheng Wang
- Biotechnology Research Institute, Xiqing District, Tianjin Academy of Agricultural Sciences, Jinjing Road 17 km, Tianjin, 300384, China
| | - Shengnan Huang
- Department of Horticulture, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang, 110866, China
| | - Ying Zhao
- Department of Horticulture, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang, 110866, China
| | - Hui Feng
- Department of Horticulture, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang, 110866, China.
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Wang C, Xiang Y, Qian D. Current progress in plant V-ATPase: From biochemical properties to physiological functions. JOURNAL OF PLANT PHYSIOLOGY 2021; 266:153525. [PMID: 34560396 DOI: 10.1016/j.jplph.2021.153525] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/12/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
Vacuolar-type adenosine triphosphatase (V-ATPase, VHA) is a highly conserved, ATP-driven multisubunit proton pump that is widely distributed in all eukaryotic cells. V-ATPase consists of two domains formed by at least 13 different subunits, the membrane peripheral V1 domain responsible for ATP hydrolysis, and the membrane-integral V0 domain responsible for proton translocation. V-ATPase plays an essential role in energizing secondary active transport and is indispensable to plants. In addition to multiple stress responses, plant V-ATPase is also implicated in physiological processes such as growth, development, and morphogenesis. Based on the identification of distinct V-ATPase mutants and advances in luminal pH measurements in vivo, it has been revealed that this holoenzyme complex plays a pivotal role in pH homeostasis of the plant endomembrane system and endocytic and secretory trafficking. Here, we review recent progress in comprehending the biochemical properties and physiological functions of plant V-ATPase and explore the topics that require further elucidation.
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Affiliation(s)
- Chao Wang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yun Xiang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Dong Qian
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
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Fan X, Zhou X, Chen H, Tang M, Xie X. Cross-Talks Between Macro- and Micronutrient Uptake and Signaling in Plants. FRONTIERS IN PLANT SCIENCE 2021; 12:663477. [PMID: 34721446 PMCID: PMC8555580 DOI: 10.3389/fpls.2021.663477] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 08/30/2021] [Indexed: 05/05/2023]
Abstract
In nature, land plants as sessile organisms are faced with multiple nutrient stresses that often occur simultaneously in soil. Nitrogen (N), phosphorus (P), sulfur (S), zinc (Zn), and iron (Fe) are five of the essential nutrients that affect plant growth and health. Although these minerals are relatively inaccessible to plants due to their low solubility and relative immobilization, plants have adopted coping mechanisms for survival under multiple nutrient stress conditions. The double interactions between N, Pi, S, Zn, and Fe have long been recognized in plants at the physiological level. However, the molecular mechanisms and signaling pathways underlying these cross-talks in plants remain poorly understood. This review preliminarily examined recent progress and current knowledge of the biochemical and physiological interactions between macro- and micro-mineral nutrients in plants and aimed to focus on the cross-talks between N, Pi, S, Zn, and Fe uptake and homeostasis in plants. More importantly, we further reviewed current studies on the molecular mechanisms underlying the cross-talks between N, Pi, S, Zn, and Fe homeostasis to better understand how these nutrient interactions affect the mineral uptake and signaling in plants. This review serves as a basis for further studies on multiple nutrient stress signaling in plants. Overall, the development of an integrative study of multiple nutrient signaling cross-talks in plants will be of important biological significance and crucial to sustainable agriculture.
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Affiliation(s)
| | | | | | - Ming Tang
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Xianan Xie
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
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26
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Amini S, Arsova B, Gobert S, Carnol M, Bosman B, Motte P, Watt M, Hanikenne M. Transcriptional regulation of ZIP genes is independent of local zinc status in Brachypodium shoots upon zinc deficiency and resupply. PLANT, CELL & ENVIRONMENT 2021; 44:3376-3397. [PMID: 34263935 DOI: 10.1111/pce.14151] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 07/05/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
The biological processes underlying zinc homeostasis are targets for genetic improvement of crops to counter human malnutrition. Detailed phenotyping, ionomic, RNA-Seq analyses and flux measurements with 67 Zn isotope revealed whole-plant molecular events underlying zinc homeostasis upon varying zinc supply and during zinc resupply to starved Brachypodium distachyon (Brachypodium) plants. Although both zinc deficiency and excess hindered Brachypodium growth, accumulation of biomass and micronutrients into roots and shoots differed depending on zinc supply. The zinc resupply dynamics involved 1,893 zinc-responsive genes. Multiple zinc-regulated transporter and iron-regulated transporter (IRT)-like protein (ZIP) transporter genes and dozens of other genes were rapidly and transiently down-regulated in early stages of zinc resupply, suggesting a transient zinc shock, sensed locally in roots. Notably, genes with identical regulation were observed in shoots without zinc accumulation, pointing to root-to-shoot signals mediating whole-plant responses to zinc resupply. Molecular events uncovered in the grass model Brachypodium are useful for the improvement of staple monocots.
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Affiliation(s)
- Sahand Amini
- InBioS - PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, Liège, Belgium
| | - Borjana Arsova
- Root Dynamics Group, IBG-2 - Plant Sciences, Institut für Bio- und Geowissenschaften (IBG), Forschungszentrum Jülich, Jülich, Germany
| | - Sylvie Gobert
- Laboratory of Oceanology, MARE Center, FOCUS, University of Liège, Liège, Belgium
- Station de Recherches Sous-Marines et Océanographiques (STARESO), Pointe de la Revellata, Calvi, France
| | - Monique Carnol
- InBioS - PhytoSystems, Laboratory of Plant and Microbial Ecology, Department of Biology, Ecology, Evolution, University of Liège, Liège, Belgium
| | - Bernard Bosman
- InBioS - PhytoSystems, Laboratory of Plant and Microbial Ecology, Department of Biology, Ecology, Evolution, University of Liège, Liège, Belgium
| | - Patrick Motte
- InBioS - PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, Liège, Belgium
| | - Michelle Watt
- Root Dynamics Group, IBG-2 - Plant Sciences, Institut für Bio- und Geowissenschaften (IBG), Forschungszentrum Jülich, Jülich, Germany
| | - Marc Hanikenne
- InBioS - PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, Liège, Belgium
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Shinozaki D, Yoshimoto K. Autophagy balances the zinc-iron seesaw caused by Zn-stress. TRENDS IN PLANT SCIENCE 2021; 26:882-884. [PMID: 34330656 DOI: 10.1016/j.tplants.2021.06.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
Under zinc (Zn) deficiency, plants take up excess iron (Fe), but the uptake is inhibited under Zn excess. Coordination between intracellular recycling, transport, and sensing is essential for Zn-Fe homeostasis. A new study shows that autophagy resupplies Zn2+ and Fe2+ to correct intracellular Zn-Fe imbalances.
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Affiliation(s)
- Daiki Shinozaki
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan; Life Sciences Program, Graduate School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan; Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Kohki Yoshimoto
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan; Life Sciences Program, Graduate School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan.
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28
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Shinozaki D, Tanoi K, Yoshimoto K. Optimal Distribution of Iron to Sink Organs via Autophagy Is Important for Tolerance to Excess Zinc in Arabidopsis. PLANT & CELL PHYSIOLOGY 2021; 62:515-527. [PMID: 33528512 DOI: 10.1093/pcp/pcab017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
Zinc (Zn) is nutritionally an essential metal element, but excess Zn in the environment is toxic to plants. Autophagy is a major pathway responsible for intracellular degradation. Here, we demonstrate the important role of autophagy in adaptation to excess Zn stress. We found that autophagy-defective Arabidopsis thaliana (atg2 and atg5) exhibited marked excess Zn-induced chlorosis and growth defects relative to wild-type (WT). Imaging and biochemical analyses revealed that autophagic activity was elevated under excess Zn. Interestingly, the excess Zn symptoms of atg5 were alleviated by supplementation of high levels of iron (Fe) to the media. Under excess Zn, in atg5, Fe starvation was especially severe in juvenile true leaves. Consistent with this, accumulation levels of Fe3+ near the shoot apical meristem remarkably reduced in atg5. Furthermore, excision of cotyledons induced severe excess Zn symptoms in WT, similar to those observed in atg5.Our data suggest that Fe3+ supplied from source leaves (cotyledons) via autophagy is distributed to sink leaves (true leaves) to promote healthy growth under excess Zn, revealing a new dimension, the importance of heavy-metal stress responses by the intracellular recycling.
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Affiliation(s)
- Daiki Shinozaki
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa, 214-8571 Japan
- Life Sciences Program, Graduate School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa, 214-8571 Japan
| | - Keitaro Tanoi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Kohki Yoshimoto
- Department of Life Sciences, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa, 214-8571 Japan
- Life Sciences Program, Graduate School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa, 214-8571 Japan
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29
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Abstract
This review highlights the most recent updated information available about Zn phytotoxicity at physiological, biochemical and molecular levels, uptake mechanisms as well as excess Zn homeostasis in plants. Zinc (Zn) is a natural component of soil in terrestrial environments and is a vital element for plant growth, as it performs imperative functions in numerous metabolic pathways. However, potentially noxious levels of Zn in soils can result in various alterations in plants like reduced growth, photosynthetic and respiratory rate, imbalanced mineral nutrition and enhanced generation of reactive oxygen species. Zn enters into soils through various sources, such as weathering of rocks, forest fires, volcanoes, mining and smelting activities, manure, sewage sludge and phosphatic fertilizers. The rising alarm in environmental facet, as well as, the narrow gap between Zn essentiality and toxicity in plants has drawn the attention of the scientific community to its effects on plants and crucial role in agricultural sustainability. Hence, this review focuses on the most recent updates about various physiological and biochemical functions perturbed by high levels of Zn, its mechanisms of uptake and transport as well as molecular aspects of surplus Zn homeostasis in plants. Moreover, this review attempts to understand the mechanisms of Zn toxicity in plants and to present novel perspectives intended to drive future investigations on the topic. The findings will further throw light on various mechanisms adopted by plants to cope with Zn stress which will be of great significance to breeders for enhancing tolerance to Zn contamination.
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Affiliation(s)
- Harmanjit Kaur
- Department of Botany, Akal University, Bathinda, 151302, Punjab, India
| | - Neera Garg
- Department of Botany, Panjab University, Chandigarh, 160014, India.
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30
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Root hairs: the villi of plants. Biochem Soc Trans 2021; 49:1133-1146. [PMID: 34013353 DOI: 10.1042/bst20200716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/16/2021] [Accepted: 04/23/2021] [Indexed: 01/04/2023]
Abstract
Strikingly, evolution shaped similar tubular structures at the µm to mm scale in roots of sessile plants and in small intestines of mobile mammals to ensure an efficient transfer of essential nutrients from 'dead matter' into biota. These structures, named root hairs (RHs) in plants and villi in mammals, numerously stretch into the environment, and extremely enlarge root and intestine surfaces. They are believed to forage for nutrients, and mediate their uptake. While the conceptional understanding of plant RH function in hydromineral nutrition seems clear, experimental evidence presented in textbooks is restricted to a very limited number of reference-nutrients. Here, we make an element-by-element journey through the periodic table and link individual nutrient availabilities to the development, structure/shape and function of RHs. Based on recent developments in molecular biology and the identification of mutants differing in number, length or other shape-related characteristics of RHs in various plant species, we present comprehensive advances in (i) the physiological role of RHs for the uptake of specific nutrients, (ii) the developmental and morphological responses of RHs to element availability and (iii) RH-localized nutrient transport proteins. Our update identifies crucial roles of RHs for hydromineral nutrition, mostly under nutrient and/or water limiting conditions, and highlights the influence of certain mineral availabilities on early stages of RH development, suggesting that nutritional stimuli, as deficiencies in P, Mn or B, can even dominate over intrinsic developmental programs underlying RH differentiation.
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Cai Y, Li Y, Liang G. FIT and bHLH Ib transcription factors modulate iron and copper crosstalk in Arabidopsis. PLANT, CELL & ENVIRONMENT 2021; 44:1679-1691. [PMID: 33464620 DOI: 10.1111/pce.14000] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 05/22/2023]
Abstract
Although the crosstalk between iron (Fe) and copper (Cu) homeostasis signalling networks exists in plants, the underlined molecular mechanism remains unclear. FIT (FER-LIKE IRON DEFICIENCY-INDUCED TRANSCRIPTION FACTOR) and four bHLH Ib members (bHLH38, bHLH39, bHLH100 and bHLH101) are the key regulators of Fe homeostasis. Here, we reveal that FIT and bHLH Ib control the up-regulation of Cu-uptake genes (COPT2, FRO4 and FRO5) by Fe deficiency, and Cu is required for improving plant growth under Fe-deficiency conditions. The induction of Cu-uptake gene expression and the elevation of Cu concentration are inhibited in the fit-2 or bhlh4x (the quadruple mutant of four bHLH Ib genes) under Fe-deficiency conditions. The dual overexpression of both bHLH38 (or bHLH39) and FIT activates the expression of COPT2, FRO4 and FRO5 and increases Cu accumulation. Furthermore, bHLH Ib proteins directly bind to the promoters of COPT2, FRO4 and FRO5. Either Cu supplement or overexpression of COPT2 or FRO4 improves the growth of fit-2 under Fe-deficiency conditions. Moreover, the induction of COPT2, FRO4 and FRO5 by Fe deficiency is independent of SPL7, a central regulator of Cu-deficiency responses. This work through the link between bHLH Ib/FIT and COPT2/FRO4/FRO5 under Fe-deficiency conditions establishes a new relationship between Cu and Fe homeostasis.
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Affiliation(s)
- Yuerong Cai
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, China
- The College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yang Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, China
| | - Gang Liang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, China
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Mahmoudi H, Salah IB, Zaouali W, Zorrig W, Smaoui A, Ali T, Gruber M, Ouerghi Z, Hosni K. Impact of Zinc Excess on Germination, Growth Parameters and Oxidative Stress of Sweet Basil (Ocimum basilicum L.). BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:899-907. [PMID: 33811508 DOI: 10.1007/s00128-021-03188-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
In the present study, the effects of elevated zinc concentrations on germination, physiological and biochemical parameters were investigated in basil (Ocimum basilicum L.). Results indicate that zinc excess (1-5 mM ZnSO4) did not affect germination process, but it drastically reduced vigor index and radicle elongation, and induced oxidative stress. Exposure of basil plants to 400 and 800 µM Zn decreased aerial parts and roots dry biomass, root length and leaf number. Under these conditions, the reduction of plant growth was associated with the formation of branched and abnormally shaped brown roots. Translocation factor < 1 and bioconcentration factor > 1 was observed for 100 µM Zn suggested the possible use of basil as a phytostabiliser. Excess of Zn supply (> 100 µM) decreased chlorophyll content, total phenol and total flavonoid contents. Additionally, an increased TBARS levels reflecting an oxidative burst was observed in Zn-treated plants. These findings suggest that excess Zn adversely affects plant growth, photosynthetic pigments, phenolic and flavonoid contents, and enhances oxidative stress in basil plants.
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Affiliation(s)
- Hela Mahmoudi
- Laboratoire Productivité Végétale et Contraintes Environnementales, Département des Sciences Biologiques, Faculté des Sciences de Tunis, Université Tunis El Manar, 2092, Tunis, Tunisia
| | - Imene Ben Salah
- Laboratoire Productivité Végétale et Contraintes Environnementales, Département des Sciences Biologiques, Faculté des Sciences de Tunis, Université Tunis El Manar, 2092, Tunis, Tunisia.
| | - Wafa Zaouali
- Laboratoire Productivité Végétale et Contraintes Environnementales, Département des Sciences Biologiques, Faculté des Sciences de Tunis, Université Tunis El Manar, 2092, Tunis, Tunisia
| | - Walid Zorrig
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj-Cedria, P. O. Box 901, 2050, Hammam-Lif, Tunisia
| | - Ameni Smaoui
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj-Cedria, P. O. Box 901, 2050, Hammam-Lif, Tunisia
| | - Taheri Ali
- Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, 3500 John A Merritt Blvd., Nashville, TN, 37069, USA
| | - Margaret Gruber
- Agriculture and Agri-Food Canada, Saskatoon Research and Development Centre, 107 Science Place, Saskatoon, SK, S7N 0X2, Canada
| | - Zeineb Ouerghi
- Laboratoire Productivité Végétale et Contraintes Environnementales, Département des Sciences Biologiques, Faculté des Sciences de Tunis, Université Tunis El Manar, 2092, Tunis, Tunisia
| | - Karim Hosni
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-Chimique, 2020, Sidi Thabet, Tunisia
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33
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Hanikenne M, Esteves SM, Fanara S, Rouached H. Coordinated homeostasis of essential mineral nutrients: a focus on iron. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2136-2153. [PMID: 33175167 DOI: 10.1093/jxb/eraa483] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/13/2020] [Indexed: 05/22/2023]
Abstract
In plants, iron (Fe) transport and homeostasis are highly regulated processes. Fe deficiency or excess dramatically limits plant and algal productivity. Interestingly, complex and unexpected interconnections between Fe and various macro- and micronutrient homeostatic networks, supposedly maintaining general ionic equilibrium and balanced nutrition, are currently being uncovered. Although these interactions have profound consequences for our understanding of Fe homeostasis and its regulation, their molecular bases and biological significance remain poorly understood. Here, we review recent knowledge gained on how Fe interacts with micronutrient (e.g. zinc, manganese) and macronutrient (e.g. sulfur, phosphate) homeostasis, and on how these interactions affect Fe uptake and trafficking. Finally, we highlight the importance of developing an improved model of how Fe signaling pathways are integrated into functional networks to control plant growth and development in response to fluctuating environments.
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Affiliation(s)
- Marc Hanikenne
- InBioS - PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, 4000 Liège, Belgium
| | - Sara M Esteves
- InBioS - PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, 4000 Liège, Belgium
| | - Steven Fanara
- InBioS - PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, 4000 Liège, Belgium
| | - Hatem Rouached
- BPMP, Univ. Montpellier, CNRS, INRA, Montpellier SupAgro, Montpellier, France
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
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34
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Asaoka M, Ooe M, Gunji S, Milani P, Runel G, Horiguchi G, Hamant O, Sawa S, Tsukaya H, Ferjani A. Stem integrity in Arabidopsis thaliana requires a load-bearing epidermis. Development 2021; 148:148/4/dev198028. [PMID: 33637612 DOI: 10.1242/dev.198028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 01/11/2021] [Indexed: 01/02/2023]
Abstract
Because plant cells are glued to each other via their cell walls, failure to coordinate growth among adjacent cells can create cracks in tissues. Here, we find that the unbalanced growth of inner and outer tissues in the clavata3 de-etiolated3 (clv3 det3) mutant of Arabidopsis thaliana stretched epidermal cells, ultimately generating cracks in stems. Stem growth slowed before cracks appeared along clv3 det3 stems, whereas inner pith cells became drastically distorted and accelerated their growth, yielding to stress, after the appearance of cracks. This is consistent with a key role of the epidermis in restricting growth. Mechanical property measurements recorded using an atomic force microscope revealed that epidermal cell wall stiffness decreased in det3 and clv3 det3 epidermises. Thus, we hypothesized that stem integrity depends on the epidermal resistance to mechanical stress. To formally test this hypothesis, we used the DET3 gene as part of a tissue-specific strategy to complement cell expansion defects. Epidermis-driven DET3 expression restored growth and restored the frequency of stem cracking to 20% of the clv3 det3 mutant, demonstrating the DET3-dependent load-bearing role of the epidermis.
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Affiliation(s)
- Mariko Asaoka
- Department of Biology, Tokyo Gakugei University, 184-8501 Tokyo, Japan.,Laboratoire de Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, 69007 Lyon, France
| | - Mao Ooe
- Department of Biology, Tokyo Gakugei University, 184-8501 Tokyo, Japan
| | - Shizuka Gunji
- Department of Biology, Tokyo Gakugei University, 184-8501 Tokyo, Japan.,United Graduated School of Education, Tokyo Gakugei University, 184-8501 Tokyo, Japan
| | - Pascale Milani
- BioMeca company, Ecole Normale Superieure de Lyon, 69007 Lyon, France
| | - Gaël Runel
- BioMeca company, Ecole Normale Superieure de Lyon, 69007 Lyon, France
| | - Gorou Horiguchi
- Department of Life Science, College of Science, Rikkyo University, 171-0021 Tokyo, Japan.,Research Center for Life Science, College of Science, Rikkyo University, 171-0021 Tokyo, Japan
| | - Olivier Hamant
- Laboratoire de Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, 69007 Lyon, France.,The International Research Organization for Advanced Science and Technology, Kumamoto University, 860-8555 Kumamoto, Japan
| | - Shinichiro Sawa
- Graduate School of Science and Technology, Kumamoto University, 860-8555 Kumamoto, Japan
| | - Hirokazu Tsukaya
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 113-0033 Tokyo, Japan
| | - Ali Ferjani
- Department of Biology, Tokyo Gakugei University, 184-8501 Tokyo, Japan .,United Graduated School of Education, Tokyo Gakugei University, 184-8501 Tokyo, Japan
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Romdhane L, Ebinezer LB, Panozzo A, Barion G, Dal Cortivo C, Radhouane L, Vamerali T. Effects of Soil Amendment With Wood Ash on Transpiration, Growth, and Metal Uptake in Two Contrasting Maize ( Zea mays L.) Hybrids to Drought Tolerance. FRONTIERS IN PLANT SCIENCE 2021. [PMID: 34093619 DOI: 10.3390/agronomy11010178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Wood ash as a soil amendment has gained wide spread acceptance in the recent years as a sustainable alternative to chemical fertilizers, although information regarding the effects of its application on maize growth and yield in the context of climate change and increasing drought severity is lacking till date. In the present study, field and pot trials were carried out at the experimental farm of the University of Padova at Legnaro (NE Italy) in a silty-loam soil in order to investigate the effects of soil amendment with wood ash (0.1% w/w, incorporated into the 0.2-m top soil) on the bioavailability of mineral elements and their uptake by maize. Characteristics analyzed included plant growth, leaf transpiration dynamics, and productivity in two contrasting hybrids, P1921 (drought sensitive) and D24 (drought tolerant). Wood ash contained relevant amounts of Ca, K, Mg, P, and S, and hazardous levels of Zn (732 mg kg-1), Pb (527 mg kg-1), and Cu (129 mg kg-1), although no significant changes in total soil element concentration, pH, and electrical conductivity were detected in open field. Ash application led to a general increasing trend of diethylene triamine penta-acetic acid (DTPA)-extractable of various elements, bringing to higher grain P in D24 hybrid, and Zn and Ni reductions in P1921 hybrid. Here, the results demonstrated that ash amendment enhanced shoot growth and the number of leaves, causing a reduction of harvest index, without affecting grain yield in both hybrids. The most relevant result was a retarded inhibition of leaf transpiration under artificial progressive water stress, particularly in the drought-tolerant D24 hybrid that could be sustained by root growth improvements in the field across the whole 0-1.5 m soil profile in D24, and in the amended top soil in P1921. It is concluded that woody ash can be profitably exploited in maize fertilization for enhancing shoot and root growth and drought tolerance, thanks to morphological and physiological improvements, although major benefits are expected to be achieved in drought tolerant hybrids. Attention should be payed when using ash derived by metal contaminated wood stocks to avoid any health risk in food uses.
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Affiliation(s)
- Leila Romdhane
- Laboratoire Sciences et Techniques Agronomiques (LR16INRAT05), National Institute of Agricultural Research (INRAT), University of Carthage, Ariana, Tunisia
- Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padua, Legnaro, Italy
| | - Leonard Barnabas Ebinezer
- Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padua, Legnaro, Italy
| | - Anna Panozzo
- Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padua, Legnaro, Italy
| | - Giuseppe Barion
- Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padua, Legnaro, Italy
| | - Cristian Dal Cortivo
- Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padua, Legnaro, Italy
| | - Leila Radhouane
- Laboratoire Sciences et Techniques Agronomiques (LR16INRAT05), National Institute of Agricultural Research (INRAT), University of Carthage, Ariana, Tunisia
| | - Teofilo Vamerali
- Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padua, Legnaro, Italy
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Wang Y, Yang J, Miao R, Kang Y, Qi Z. A novel zinc transporter essential for Arabidopsis zinc and iron-dependent growth. JOURNAL OF PLANT PHYSIOLOGY 2021; 256:153296. [PMID: 33161180 DOI: 10.1016/j.jplph.2020.153296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/03/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
Zinc (Zn), an essential micronutrient, is absorbed by plant roots and redistributed to leaves. This process must be finely regulated in order to avoid toxic Zn2+ overaccumulation, which can arise due to Zn2+ oversupply or Zn2+ hyperaccumulation induced by Fe2+ deficiency. Although several proteins in Arabidopsis thaliana are essential for retaining Zn in the root and partitioning it from roots to leaves, how Zn2+ homeostasis in leaves is maintained is largely unknown. In this study, we identified a novel Golgi-localized protein named ZINC NUTRIENT ESSENTIAL1 (AtZNE1,At3g08650) in Arabidopsis. AtZNE1 contains 14 putative transmembrane domains. AtZNE1 promoter has strong activity in the root and leaf. Its expression complemented the increased sensitivity of a yeast mutant to excess Zn2+. The disruption of AtZNE1 in the T-DNA insertion mutant atzne1 caused growth defect under excess-Zn or Fe deficit conditions, but had no effects on the total Zn and Fe contents. We propose that AtZNE1 plays a vital role in plant adaptation to excess Zn or Fe deficiency.
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Affiliation(s)
- Yaohui Wang
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China
| | - Ju Yang
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China
| | - Ruiying Miao
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China
| | - Yan Kang
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China.
| | - Zhi Qi
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China.
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Zhang H, Xu Z, Guo K, Huo Y, He G, Sun H, Guan Y, Xu N, Yang W, Sun G. Toxic effects of heavy metal Cd and Zn on chlorophyll, carotenoid metabolism and photosynthetic function in tobacco leaves revealed by physiological and proteomics analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110856. [PMID: 32629202 DOI: 10.1016/j.ecoenv.2020.110856] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 05/18/2023]
Abstract
To explore the mechanisms underlying the action of the heavy metals Cd and Zn on the photosynthetic function of plant leaves, the effects of 100 μmol L-1 Cd and 200 μmol L-1 Zn stress (the exposure concentrations of Cd and Zn in the culture medium were 2.24 mg kg-1 and 5.36 mg kg-1) on the chlorophyll and carotenoid contents as well as the photosynthetic function of tobacco leaves (Long Jiang 911) were studied. The key proteins in these physiological processes were quantitatively analyzed using a TMT-based proteomics approach. Cd stress was found to inhibit the expression of key enzymes during chlorophyll synthesis in leaves, resulting in a decrease of the Chl content. However, Zn stress did not significantly influence the chlorophyll content. Leaves adapted to Zn stress by upregulating CAO expression and increase the Chl b content. Although the Car content in leaves did not significantly change under either Cd or Zn stress, the expressions of ZE and VDE during Car metabolism decreased significantly under Cd stress. This was accompanied by damages to the xanthophyll cycle and the NPQ-dependent energy dissipation mechanism. In contrast, under Zn stress, leaves adapted to Zn stress by increasing the expression of VDE, thus improving NPQ. Under Cd stress, the expressions of three sets of proteins were significantly down-regulated, including PSII donor-side proteins (PPD3, PPD6, OEE1, OEE2-1, OEE2-2, OEE2-3, and OEE3-2), receptor-side proteins (D1, D2, CP43, CP47, Cyt b559α, Cyt b559β, PsbL, PsbQ, PsbR, Psb27-H1, and Psb28), and core proteins of the PSI reaction center (psaA, psaB, psaC, psaD, psaE-A, PsaE-B, psaF, psaG, psaH-1, psaK, psaL, psaN, and psaOL). In comparison, only eight of the above proteins (PPD6, OEE3-2, PsbL, PsbQ, Psb27-H1, psaL, and psaOL) were significantly down-regulated by Zn stress. Under Cd stress, both the donor side and the receptor side of PSII were damaged, and PSII and PSI experienced severe photoinhibition. However, Zn stress did not decrease either PSII or PSI activities in tobacco leaves. In addition, the expression of electron transport-related proteins (cytb6/f complex, PC, Fd, and FNR), ATPase subunits, Rubisco subunits, and RCA decreased significantly in leaves under Cd stress. However, no significant changes were observed in any of these proteins under Zn stress. Although Cd stress was found to up-regulate the expressions of PGRL1A and PGRL1B and induce an increase of PGR5/PGRL1-CEF in tobacco leaves, NDH-CEF was significantly inhibited. Under Zn stress, the expressions of ndhH and PGRL1A in leaves were significantly up-regulated, but there were no significant changes in either NDH-CEF or PGR5/PGRL-CEF. Under Cd stress, the expressions of proteins related to Fd-dependent nitrogen metabolism and reactive oxygen species (ROS) scavenging processes (e.g., FTR, Fd-NiR, and Fd-GOGAT) were significantly down-regulated in leaves. However, no significant changes of any of the above proteins were identified under Zn stress. In summary, Cd stress could inhibit the synthesis of chlorophyll in tobacco leaves, significantly down-regulate the expressions of photosynthesis-related proteins or subunits, and suppress both the xanthophyll cycle and NDH-CEF process. The expressions of proteins related to the Fd-dependent nitrogen metabolism and ROS scavenging were also significantly down-regulated, which blocked the photosynthetic electron transport, thus resulting in severe photoinhibition of both PSII and PSI. However, Zn stress had little effect on the photosynthetic function of tobacco leaves.
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Affiliation(s)
- Huihui Zhang
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China; Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Zisong Xu
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Kaiwen Guo
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Yuze Huo
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Guoqiang He
- Mudanjiang Tobacco Science Research Institute, Mudanjiang, Heilongjiang, China
| | - Hongwei Sun
- Mudanjiang Tobacco Science Research Institute, Mudanjiang, Heilongjiang, China
| | - Yupeng Guan
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Nan Xu
- Natural Resources and Ecology Institute, Heilongjiang Sciences Academy, Harbin, Heilongjiang, China
| | - Wei Yang
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China.
| | - Guangyu Sun
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China.
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Wen D, Xu H, He M, Zhang C. Proteomic analysis of wheat seeds produced under different nitrogen levels before and after germination. Food Chem 2020; 340:127937. [PMID: 32889215 DOI: 10.1016/j.foodchem.2020.127937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 07/27/2020] [Accepted: 08/23/2020] [Indexed: 12/28/2022]
Abstract
The objective of this study was to investigate differentially abundant proteins (DAPs) of wheat seeds produced under two nitrogen levels (0 and 240 kg/ha) before and after germination. We selected samples at 8 and 72 h after imbibition (HAI) to identify DAPs by iTRAQ. The results showed 190 and 124 DAPs at 8 and 72 HAI, respectively. Alpha-gliadin and chlorophyll a-b binding protein showed the biggest difference in abundance before and after germination. In GO enrichment analysis, the most significantly enriched GO term was nutrient reservoir activity at 8 HAI and endopeptidase inhibitor activity at 72 HAI. Moreover, many DAPs involved in mobilization of stored nutrients and photosynthesis were mapped to KEGG pathways. Dough development time, dough stability time and seedling chlorophyll content under N240 were significantly higher than those under N0, which validated the results of proteomic analysis. These results are crucial for food nutrition and food processing.
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Affiliation(s)
- Daxing Wen
- State Key Laboratory of Crop Biology, Agronomy College, Shandong Agricultural University, Tai'an, Shandong Province 271018, PR China.
| | - Haicheng Xu
- State Key Laboratory of Crop Biology, Agronomy College, Shandong Agricultural University, Tai'an, Shandong Province 271018, PR China
| | - Mingrong He
- State Key Laboratory of Crop Biology, Agronomy College, Shandong Agricultural University, Tai'an, Shandong Province 271018, PR China.
| | - Chunqing Zhang
- State Key Laboratory of Crop Biology, Agronomy College, Shandong Agricultural University, Tai'an, Shandong Province 271018, PR China.
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Pan W, You Y, Shentu JL, Weng YN, Wang ST, Xu QR, Liu HJ, Du ST. Abscisic acid (ABA)-importing transporter 1 (AIT1) contributes to the inhibition of Cd accumulation via exogenous ABA application in Arabidopsis. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:122189. [PMID: 32044630 DOI: 10.1016/j.jhazmat.2020.122189] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/23/2020] [Accepted: 01/24/2020] [Indexed: 05/18/2023]
Abstract
Soil cadmium (Cd) accumulation presents risks to crop safety and productivity. However, through an exogenous application of abscisic acid (ABA), its accumulation in plants can be reduced and its toxicity mitigated, thereby providing an alternative strategy to counteract Cd contamination of arable soil. In the present study, we demonstrated that exogenous ABA application alleviates Cd-induced growth inhibition and photosynthetic damage in wild-type (Col-0) Arabidopsis plants. However, these positive effects were weakened in the ABA-importing transporter (AIT1)-deficient mutant (ait1). Through further analysis, we found that upon ABA application, the decrease in Cd level significantly differed among ait1, Col-0, and the two AIT1-overexpressing transgenic plants (AIT1ox-1 and AIT1ox-2), suggesting that AIT1 mediates the Cd-reducing effects of ABA. ABA application also inhibited the expression of IRT1, ZIP1, ZIP4, and Nramp1 in Col-0 plants subjected to Cd stress. However, significant differences among the genotypes (ait1, Col-0 and AIT1ox) were only observed in terms of IRT1 expression. Overall, our findings suggest that the suppression of Cd accumulation and restoration of plant growth by exogenous ABA require the ABA-importing activity of AIT1 to inhibit IRT1 expression.
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Affiliation(s)
- Wei Pan
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yue You
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Jia-Li Shentu
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310018, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yi-Neng Weng
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Sheng-Tao Wang
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qian-Ru Xu
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Hui-Jun Liu
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310018, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou 310018, China
| | - Shao-Ting Du
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310018, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou 310018, China.
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Uraguchi S, Ohshiro Y, Otsuka Y, Tsukioka H, Yoneyama N, Sato H, Hirakawa M, Nakamura R, Takanezawa Y, Kiyono M. Selection of Agar Reagents for Medium Solidification Is a Critical Factor for Metal(loid) Sensitivity and Ionomic Profiles of Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2020; 11:503. [PMID: 32499794 PMCID: PMC7243937 DOI: 10.3389/fpls.2020.00503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
For researchers in the plant metal field, the agar reagent used for the solid plate medium is a problematic factor because application of different agar types and even a different lot of the same agar type can mask the plant metal-related phenotypes and impair the reproducibility. In this study, we systematically assessed effects of different agar reagents on metal(loid) sensitivity and element accumulation of the Arabidopsis metal sensitive mutants. Three established mutants (cad1-3, cad1-6, and abcc1/2), and three different types of purified agar reagents (Type A, Type E, and Nacalai) with two independent batches for each reagent were subjected to the analyses. First, we found that element concentrations in the agar reagents largely varied among the agar types. Then the effects of agar reagents on the mutant metal(loid)-sensitivity were examined under As(III), Hg(II), Cd(II), and excess Zn(II) conditions. A significant variation of the mutant metal(loid)-sensitivity was observed among the different agar plates but the variation depended on the combination of metal(loid) stress and agar reagents. Briefly, the type-dependent variation was more evident under As(III) and Hg(II) than Cd(II) or excess Zn(II) conditions. A lot-dependent variation was also observed for Type A and Type E but not for Nacalai: hypersensitive phenotypes of cad1-3, cad1-6, and abcc1/2 under As(III) or Hg(II) treatments were diminished when different batches of the Type A or Type E agar types were used. We also found a significant variation of As and Hg accumulation in the wild-type and cad1-3. Plant As and Hg concentrations were remarkably higher and the difference between the genotypes was more evident when grown with Type A agar plates. We finally analyzed ionomic profiles in the plants exposed to As(III) stress. Agar-type specific ionomic changes in cad1-3 were more observed with the Type A plates than with the Nacalai plates. The presented results overall suggest that suitability of agar reagents for metal(loid)-related phenotyping depends on the experimental design, and an inappropriate selection of agar reagents can mask even very clear phenotypes of the established mutant like cad1-3. We also discuss perspectives on the agar problem in the plant metal study.
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Shirani Bidabadi S. The role of Fe-nano particles in scarlet sage responses to heavy metals stress. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:1259-1268. [PMID: 32393119 DOI: 10.1080/15226514.2020.1759507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Despite the stabilized ornamental markets for scarlet sage (Salvia splendens), little is known about the stress resistance of heavy metals (HMs). Therefore, a hydroponic study was conducted to determine whether the addition of Fe nanoparticles (Fe NPs) at 0, 5, 10, 20 and 30 µM in Hoagland's nutrient solution reduce the toxicity caused by 100 μM of HMs (Cd, Cu, Ni, Cr and Pb). Exposure to HMs significantly reduced relative growth rate (RGR), chlorophyll content, chlorophyll fluorescence (Fv/Fm), total antioxidant activity (TAA), total phenol content (TPC) and antioxidant power assay (FRAP), while the malondialdehyde (MDA) accumulation, H2O2 generation and electrolyte leakage (EL) significantly increased. Fe NPs improved HMs toxicity by significant reduction in MDA content, H2O2 generation and EL while increase in the PGR, chlorophyll content, Fv/Fm, the TAA, TPC and FRAP. Exposure to HMs caused Fe deficiency-induced chlorosis while Fe NPs reduced the negative effects of HM by preventing further reduction of leaf Fe. The results highlighted that although using Fe NPs significantly improved plant growth and motivated the plant defense mechanisms in response to HMs toxicity, it had a negative effect on the phytoremediation properties of salvia splendens by reducing the accumulation of HMs in plant organs.
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Scheepers M, Spielmann J, Boulanger M, Carnol M, Bosman B, De Pauw E, Goormaghtigh E, Motte P, Hanikenne M. Intertwined metal homeostasis, oxidative and biotic stress responses in the Arabidopsis frd3 mutant. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 102:34-52. [PMID: 31721347 DOI: 10.1111/tpj.14610] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/24/2019] [Accepted: 10/31/2019] [Indexed: 05/22/2023]
Abstract
FRD3 (FERRIC REDUCTASE DEFECTIVE 3) plays a major role in iron (Fe) and zinc (Zn) homeostasis in Arabidopsis. It transports citrate, which enables metal distribution in the plant. An frd3 mutant is dwarf and chlorotic and displays a constitutive Fe-deficiency response and strongly altered metal distribution in tissues. Here, we have examined the interaction between Fe and Zn homeostasis in an frd3 mutant exposed to varying Zn supply. Detailed phenotyping using transcriptomic, ionomic, histochemical and spectroscopic approaches revealed the full complexity of the frd3 mutant phenotype, which resulted from altered transition metal homeostasis, manganese toxicity, and oxidative and biotic stress responses. The cell wall played a key role in these processes, as a site for Fe and hydrogen peroxide accumulation, and displayed modified structure in the mutant. Finally, we showed that Zn excess interfered with these mechanisms and partially restored root growth of the mutant, without reverting the Fe-deficiency response. In conclusion, the frd3 mutant molecular phenotype is more complex than previously described and illustrates how the response to metal imbalance depends on multiple signaling pathways.
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Affiliation(s)
- Maxime Scheepers
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, 4000, Liège, Belgium
| | - Julien Spielmann
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, 4000, Liège, Belgium
| | - Madeleine Boulanger
- Laboratory of Mass Spectrometry, Departement of Chemistry, University of Liège, 4000, Liège, Belgium
- InBioS-Center for Protein Engineering (CIP), Bacterial Physiology and Genetics, University of Liège, 4000, Liège, Belgium
| | - Monique Carnol
- InBioS-PhytoSystems, Laboratory of Plant and Microbial Ecology, University of Liège, 4000, Liège, Belgium
| | - Bernard Bosman
- InBioS-PhytoSystems, Laboratory of Plant and Microbial Ecology, University of Liège, 4000, Liège, Belgium
| | - Edwin De Pauw
- Laboratory of Mass Spectrometry, Departement of Chemistry, University of Liège, 4000, Liège, Belgium
| | - Erik Goormaghtigh
- Structure and Function of Biological membranes, Center for Structural Biology and Bioinformatics, Université Libre de Bruxelles, 1050, Brussels, Belgium
| | - Patrick Motte
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, 4000, Liège, Belgium
| | - Marc Hanikenne
- InBioS-PhytoSystems, Functional Genomics and Plant Molecular Imaging, University of Liège, 4000, Liège, Belgium
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Plant Growth Promoting Rhizobacteria (PGPR) Regulated Phyto and Microbial Beneficial Protein Interactions. Open Life Sci 2020. [DOI: 10.1515/biol-2020-0008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
AbstractPlant Growth Promoting Rhizobacteria (PGPR) influence plants’ physiological characteristics, metabolites, pathways and proteins via alteration of corresponding gene expression. In the current study, a total of 42 upregulated uncharacterized sorghum bicolor root proteins influenced by PGPR were subjected to different analyses: phylogenetic tree, protein functional network, sequences similarity network (SSN), Genome Neighborhood Network (GNN) and motif analysis. The screen for homologous bacterial proteins to uncover associated protein families and similar proteins in non-PGPRs was identified. The sorghum roots’ uncharacterized protein sequences analysis indicated the existence of two protein categories, the first being related to phytobeneficial protein family associated with DNA regulation such as Sulfatase, FGGY_C, Phosphodiesterase or stress tolerance such as HSP70. The second is associated with bacterial transcriptional regulators such as FtsZ, MreB_Mbl and DNA-binding transcriptional regulators, as well as the AcrR family, which existed in PGPR and non PGPR. Therefore, Plant Growth-Promoting Rhizobacteria (PGPR) regulated phytobeneficial traits through reciprocal protein stimulation via microbe plant interactions, both during and post colonization.
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Kaznina NM, Titov AF, Repkina NS, Batova YV. Effect of Zinc Excess and Low Temperature on the IRT1 Gene Expression in the Roots and Leaves of Barley. DOKL BIOCHEM BIOPHYS 2019; 487:264-268. [PMID: 31559594 DOI: 10.1134/s1607672919040057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Indexed: 11/23/2022]
Abstract
We studied the effect of zinc excess (1000 μM) and low positive temperature (4°C) on the IRT1 gene expression in barley roots and leaves. Exposure at each of the stress factors separately induced an increase in the content of the HvIRT1 gene transcripts, which was more pronounced in leaves. At the same time, the growth of seedlings continued. Under the combined action of the stress factors in the first 3 days, the amount of mRNA also increased, but after 7 days of exposure it significantly declined, which correlated with the complete inhibition of seedling growth. It is assumed that the seedling growth inhibition under the combined effect of zinc excess and low temperature is associated with a decrease in the transcriptional activity of the HvIRT1 gene, due to the deficiency in a number of trace elements under these conditions.
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Affiliation(s)
- N M Kaznina
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, 185910, Petrozavodsk, Karelia, Russia.
| | - A F Titov
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, 185910, Petrozavodsk, Karelia, Russia
| | - N S Repkina
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, 185910, Petrozavodsk, Karelia, Russia
| | - Yu V Batova
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, 185910, Petrozavodsk, Karelia, Russia
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Ameztoy K, Baslam M, Sánchez-López ÁM, Muñoz FJ, Bahaji A, Almagro G, García-Gómez P, Baroja-Fernández E, De Diego N, Humplík JF, Ugena L, Spíchal L, Doležal K, Kaneko K, Mitsui T, Cejudo FJ, Pozueta-Romero J. Plant responses to fungal volatiles involve global posttranslational thiol redox proteome changes that affect photosynthesis. PLANT, CELL & ENVIRONMENT 2019; 42:2627-2644. [PMID: 31222760 DOI: 10.1111/pce.13601] [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: 03/22/2019] [Revised: 05/31/2019] [Accepted: 06/03/2019] [Indexed: 05/22/2023]
Abstract
Microorganisms produce volatile compounds (VCs) that promote plant growth and photosynthesis through complex mechanisms involving cytokinin (CK) and abscisic acid (ABA). We hypothesized that plants' responses to microbial VCs involve posttranslational modifications of the thiol redox proteome through action of plastidial NADPH-dependent thioredoxin reductase C (NTRC), which regulates chloroplast redox status via its functional relationship with 2-Cys peroxiredoxins. To test this hypothesis, we analysed developmental, metabolic, hormonal, genetic, and redox proteomic responses of wild-type (WT) plants and a NTRC knockout mutant (ntrc) to VCs emitted by the phytopathogen Alternaria alternata. Fungal VC-promoted growth, changes in root architecture, shifts in expression of VC-responsive CK- and ABA-regulated genes, and increases in photosynthetic capacity were substantially weaker in ntrc plants than in WT plants. As in WT plants, fungal VCs strongly promoted growth, chlorophyll accumulation, and photosynthesis in ntrc-Δ2cp plants with reduced 2-Cys peroxiredoxin expression. OxiTRAQ-based quantitative and site-specific redox proteomic analyses revealed that VCs promote global reduction of the thiol redox proteome (especially of photosynthesis-related proteins) of WT leaves but its oxidation in ntrc leaves. Our findings show that NTRC is an important mediator of plant responses to microbial VCs through mechanisms involving global thiol redox proteome changes that affect photosynthesis.
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Affiliation(s)
- Kinia Ameztoy
- Instituto de Agrobiotecnología, Consejo Superior de Investigaciones Científicas/Gobierno de Navarra, Avenida Pamplona 123, Mutilva, Navarra, 31192, Spain
| | - Marouane Baslam
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata, 950-2181, Japan
| | - Ángela María Sánchez-López
- Instituto de Agrobiotecnología, Consejo Superior de Investigaciones Científicas/Gobierno de Navarra, Avenida Pamplona 123, Mutilva, Navarra, 31192, Spain
| | - Francisco José Muñoz
- Instituto de Agrobiotecnología, Consejo Superior de Investigaciones Científicas/Gobierno de Navarra, Avenida Pamplona 123, Mutilva, Navarra, 31192, Spain
| | - Abdellatif Bahaji
- Instituto de Agrobiotecnología, Consejo Superior de Investigaciones Científicas/Gobierno de Navarra, Avenida Pamplona 123, Mutilva, Navarra, 31192, Spain
| | - Goizeder Almagro
- Instituto de Agrobiotecnología, Consejo Superior de Investigaciones Científicas/Gobierno de Navarra, Avenida Pamplona 123, Mutilva, Navarra, 31192, Spain
| | - Pablo García-Gómez
- Instituto de Agrobiotecnología, Consejo Superior de Investigaciones Científicas/Gobierno de Navarra, Avenida Pamplona 123, Mutilva, Navarra, 31192, Spain
| | - Edurne Baroja-Fernández
- Instituto de Agrobiotecnología, Consejo Superior de Investigaciones Científicas/Gobierno de Navarra, Avenida Pamplona 123, Mutilva, Navarra, 31192, Spain
| | - Nuria De Diego
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, CZ-78371, Czech Republic
| | - Jan F Humplík
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, CZ-78371, Czech Republic
| | - Lydia Ugena
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, CZ-78371, Czech Republic
| | - Lukáš Spíchal
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, CZ-78371, Czech Republic
| | - Karel Doležal
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, CZ-78371, Czech Republic
| | - Kentaro Kaneko
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata, 950-2181, Japan
| | - Toshiaki Mitsui
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata, 950-2181, Japan
| | - Francisco Javier Cejudo
- Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla and Consejo Superior de Investigaciones Científicas, Seville, 41092, Spain
| | - Javier Pozueta-Romero
- Instituto de Agrobiotecnología, Consejo Superior de Investigaciones Científicas/Gobierno de Navarra, Avenida Pamplona 123, Mutilva, Navarra, 31192, Spain
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Wang Z, Shi H, Yu S, Zhou W, Li J, Liu S, Deng M, Ma J, Wei Y, Zheng Y, Liu Y. Comprehensive transcriptomics, proteomics, and metabolomics analyses of the mechanisms regulating tiller production in low-tillering wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2019; 132:2181-2193. [PMID: 31020386 DOI: 10.1007/s00122-019-03345-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/09/2019] [Indexed: 06/09/2023]
Abstract
Tiller development in low-tillering wheat is related to several differentially expressed genes, proteins, and metabolites, as determined by an integrated omics approach combining transcriptome analysis, iTRAQ, and HPLC-MS on multiple NILs. Tillering is an important aspect of plant morphology that affects spike number, thereby contributing to the final crop yield. However, the mechanisms inhibiting tiller production in low-tillering wheat are poorly characterized. To investigate this aspect of wheat biology, two pairs of near-isogenic lines were developed, and an integrated omics approach combining transcriptome analysis, isobaric tags for relative and absolute quantification, and high-performance liquid chromatography-mass spectrometry were used to compare the free-tillering and low-tillering caused by an allele at Qltn.sicau-2D in wheat samples. Overall, 474 genes, 166 proteins, and 28 metabolites were identified as tillering-associated differentially expressed genes, proteins, and metabolites (DEGs, DEPs, and DEMs, respectively). Functional analysis indicated that the abundance of DEGs/DEPs/DEMs was related to lignin and cellulose metabolism, cell division, cell cycle processes, and glycerophospholipid metabolism; three transcription factor families, GRAS, GRF, and REV, might be related to the decrease in tillering in low-tillering wheat. These findings contribute to improve our understanding of the mechanisms responsible for the inhibition of tiller development in low-tillering wheat cultivars.
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Affiliation(s)
- Zhiqiang Wang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Haoran Shi
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Shifan Yu
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Wanlin Zhou
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Jing Li
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Shihang Liu
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Mei Deng
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Jian Ma
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Yuming Wei
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Youliang Zheng
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Yaxi Liu
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.
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Tan Y, Zhang J, Sun Y, Tong Z, Peng C, Chang L, Guo A, Wang X. Comparative Proteomics of Phytase-transgenic Maize Seeds Indicates Environmental Influence is More Important than that of Gene Insertion. Sci Rep 2019; 9:8219. [PMID: 31160654 PMCID: PMC6547748 DOI: 10.1038/s41598-019-44748-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 04/23/2019] [Indexed: 12/30/2022] Open
Abstract
Proteomic differences were compared between phytase-transgenic (PT) maize seeds and nontransgenic (NT) maize seeds through two-dimensional electrophoresis (2-DE) with mass spectrometry (MS). When maize was grown under field conditions, 30 differentially accumulated proteins (DAPs) were successfully identified in PT seeds (PT/NT). Clusters of Orthologous Groups (COG) functional classification of these proteins showed that the largest group was associated with posttranslational modifications. To investigate the effects of environmental factors, we further compared the seed protein profiles of the same maize planted in a greenhouse or under field conditions. There were 76 DAPs between the greenhouse- and field-grown NT maize seeds and 77 DAPs between the greenhouse- and field-grown PT maize seeds However, under the same planting conditions, there were only 43 DAPs (planted in the greenhouse) or 37 DAPs (planted in the field) between PT and NT maize seeds. The results revealed that DAPs caused by environmental factors were more common than those caused by the insertion of exogenous genes, indicating that the environment has much more important effects on the seed protein profiles. Our maize seed proteomics results also indicated that the occurrence of unintended effects is not specific to genetically modified crops (GMCs); instead, such effects often occur in traditionally bred plants. Our data may be beneficial for biosafety assessments of GMCs at the protein profile level in the future.
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Affiliation(s)
- Yanhua Tan
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Jiaming Zhang
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Yong Sun
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China.,College of Life Sciences, Key Laboratory for Ecology of Tropical Islands, Ministry of Education, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Zheng Tong
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Cunzhi Peng
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Lili Chang
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Anping Guo
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China.
| | - Xuchu Wang
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China. .,College of Life Sciences, Key Laboratory for Ecology of Tropical Islands, Ministry of Education, Hainan Normal University, Haikou, Hainan, 571158, China.
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Gao Y, Long R, Kang J, Wang Z, Zhang T, Sun H, Li X, Yang Q. Comparative Proteomic Analysis Reveals That Antioxidant System and Soluble Sugar Metabolism Contribute to Salt Tolerance in Alfalfa ( Medicago sativa L.) Leaves. J Proteome Res 2018; 18:191-203. [PMID: 30359026 DOI: 10.1021/acs.jproteome.8b00521] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Soil salinity poses a serious threat to alfalfa ( Medicago sativa L.) productivity. To characterize the molecular mechanisms of salinity tolerance in Medicago, the comparative proteome of leaves from Medicago sativa cv. Zhongmu No.1 (ZM1, salt-tolerant) and Medicago truncatula cv. Jemalong A17 (A17, salt-sensitive) was performed using the iTRAQ approach. A total of 438 differentially expressed proteins (DEPs) were identified, among which 282 and 120 DEPs were specific to A17 and ZM1, respectively. In salt-tolerant ZM1, key DEPs were primarily enriched in antioxidant system, starch and sucrose metabolism, and secondary metabolism. ZM1 possessed a greater ability to remove reactive oxygen species and methylglyoxal under salt stress, as demonstrated by enhancement of the antioxidant system and secondary metabolism. Moreover, ZM1 orchestrated starch and sucrose metabolism to accumulate various soluble sugars (sucrose, maltose, glucose, and trehalose), which in turn facilitate osmotic homeostasis. Salt stress dramatically inhibited photosynthesis of A17 due to the downregulation of the light-harvesting complex and photosystem II related protein. Quantitative analyses of photochemical efficiency, antioxidant enzyme activities, hydrogen peroxide, malondialdehyde, and soluble sugar contents were consistent with the alterations predicted on the basis of DEP functions. These results shed light on our understanding of the mechanisms underlying the salt tolerance of alfalfa.
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Affiliation(s)
- Yanli Gao
- Institute of Animal Sciences , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Ruicai Long
- Institute of Animal Sciences , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Junmei Kang
- Institute of Animal Sciences , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Zhen Wang
- Institute of Animal Sciences , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Tiejun Zhang
- Institute of Animal Sciences , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Hao Sun
- Institute of Animal Sciences , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Xiao Li
- Institute of Animal Sciences , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Qingchuan Yang
- Institute of Animal Sciences , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
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Chen CL, Cui Y, Cui M, Zhou WJ, Wu HL, Ling HQ. A FIT-binding protein is involved in modulating iron and zinc homeostasis in Arabidopsis. PLANT, CELL & ENVIRONMENT 2018; 41:1698-1714. [PMID: 29677391 DOI: 10.1111/pce.13321] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/23/2018] [Accepted: 04/10/2018] [Indexed: 05/22/2023]
Abstract
Fe and Zn are essential micronutrients for plant growth, and the interrelationship regarding their homeostasis is very complicated. In this study, we identified a FIT-binding protein (FBP) using the yeast two-hybrid system. The C-terminus of FBP binds to the bHLH domain of FIT, abolishing the DNA-binding capacity of FIT. Knockout of FBP results in an enhanced expression of NAS genes and a higher nicotianamine content, and the fbp mutant exhibits tolerance to excessive Zn. Physiological analyses reveal that the mutant fbp retains a larger amount of Zn in roots and transfers a greater proportion of Fe to shoots than that in wild type under Zn-excessive stress. As FBP is expressed in the root stele, the negative regulation caused by sequestration of FIT is restricted to this tissue, whereas other FIT-regulated genes, such as IRT1 and FRO2, which mainly expressed in root epidermis, do not show transcriptional upregulation in the fbp mutant. As an antagonistic partner, FBP offers a new approach to spatially fine-tune the expression of genes controlled by FIT. In conclusion, our findings provide a new insight to understand the interrelationship of Fe and Zn homeostasis in plants.
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Affiliation(s)
- Chun-Lin Chen
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Cui
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Man Cui
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wen-Juan Zhou
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Hui-Lan Wu
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Hong-Qing Ling
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Xu Q, Pan W, Zhang R, Lu Q, Xue W, Wu C, Song B, Du S. Inoculation with Bacillus subtilis and Azospirillum brasilense Produces Abscisic Acid That Reduces Irt1-Mediated Cadmium Uptake of Roots. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:5229-5236. [PMID: 29738246 DOI: 10.1021/acs.jafc.8b00598] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Cadmium (Cd) contamination of agricultural soils represents a serious risk to crop safety. A new strategy using abscisic acid (ABA)-generating bacteria, Bacillus subtilis or Azospirillum brasilense, was developed to reduce the Cd accumulation in plants grown in Cd-contaminated soil. Inoculation with either bacterium resulted in a pronounced increase in the ABA level in wild-type Arabidopsis Col-0 plants, accompanied by a decrease in Cd levels in plant tissues, which mitigated the Cd toxicity. As a consequence, the growth of plants exposed to Cd was improved. Nevertheless, B. subtilis and A. brasilense inoculation had little effect on Cd levels and toxicity in the ABA-insensitive mutant snrk 2.2/2.3, indicating that the action of ABA is required for these bacteria to reduce Cd accumulation in plants. Furthermore, inoculation with either B. subtilis or A. brasilense downregulated the expression of IRT1 (iron-regulated transporter 1) in the roots of wild-type plants and had little effect on Cd levels in the IRT1-knockout mutants irt1-1 and irt1-2. In summary, we conclude that B. subtilis and A. brasilense can reduce Cd levels in plants via an IRT1-dependent ABA-mediated mechanism.
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Affiliation(s)
- Qianru Xu
- College of Environmental Science and Engineering , Zhejiang Gongshang University , Hangzhou 310018 , China
| | - Wei Pan
- College of Environmental Science and Engineering , Zhejiang Gongshang University , Hangzhou 310018 , China
| | - Ranran Zhang
- College of Environmental Science and Engineering , Zhejiang Gongshang University , Hangzhou 310018 , China
| | - Qi Lu
- College of Environmental Science and Engineering , Zhejiang Gongshang University , Hangzhou 310018 , China
| | - Wanlei Xue
- College of Environmental Science and Engineering , Zhejiang Gongshang University , Hangzhou 310018 , China
| | - Cainan Wu
- College of Environmental Science and Engineering , Zhejiang Gongshang University , Hangzhou 310018 , China
| | - Bixiu Song
- College of Environmental Science and Engineering , Zhejiang Gongshang University , Hangzhou 310018 , China
| | - Shaoting Du
- College of Environmental Science and Engineering , Zhejiang Gongshang University , Hangzhou 310018 , China
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