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Jhanani GK, Govindasamy C, Raghavendra T. Germination and biological adaptation approaches as salt-stress tolerance process in selected paddy cultivars under salinity stress. ENVIRONMENTAL RESEARCH 2024; 259:119566. [PMID: 38971355 DOI: 10.1016/j.envres.2024.119566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/25/2024] [Accepted: 07/04/2024] [Indexed: 07/08/2024]
Abstract
Cultivating productive paddy crops on salty soil to maximise production is a challenging approach to meeting the world's growing food demand. Thus, determining salinity tolerance rates in specific paddy cultivars is urgently needed. In this study, the salt tolerance traits of selected paddy cultivars, ADT45 and ADT39, were investigated by analysing germination, metabolites (pigments and biomolecules), and enzymatic (Superoxide dismutase (SOD), Catalase (CAT), and Peroxidase (POD) adaptation strategies as salt-stress tolerance mechanisms. This study found that salinity-induced reactive oxygen species (ROS) were efficiently detoxified by the antioxidant enzymes Superoxide dismutase (SOD), Catalase (CAT), and Peroxidase (POD) in ADT45 paddy varieties, followed by ADT39. Salinity stress had a significant impact on pigments and essential biomolecules in ADT45 and ADT39 paddy cultivars, including total chlorophyll, anthocyanin, carotenoids, ascorbic acid, hydrogen peroxide (H2O2), malondialdehyde, and proline. ADT45 demonstrated a significant relationship between H2O2 and antioxidant enzyme levels, followed by ADT39 paddy but not IR64. Morphological, physiological, and biochemical analyses revealed that ADT45, followed by ADT39, is a potential salt-tolerant rice cultivar.
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Affiliation(s)
- G K Jhanani
- University Centre for Research & Development, Chandigarh University, Mohali, 140103, India.
| | - Chandramohan Govindasamy
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia
| | - T Raghavendra
- Environmental Science Division, H&S Department, CVR College of Engineering, Hyderabad, Telangana, India
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da Silva Junior ALS, Nascimento MM, Santos HM, Lôbo IP, de Oliveira RA, de Jesus RM. Methylxanthine and Flavonoid Contents from Guarana Seeds ( Paullinia cupana): Comparison of Different Drying Techniques and Effects of UV Radiation. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2024; 2024:7310510. [PMID: 38984058 PMCID: PMC11233186 DOI: 10.1155/2024/7310510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 05/23/2024] [Accepted: 06/15/2024] [Indexed: 07/11/2024]
Abstract
Guarana seeds are typically processed using one of three drying methods: traditional sun exposure, greenhouse drying, or the alguidar oven technique. In our research, we evaluated the contents of methylxanthines and flavan-3-ols in sun- and alguidar-dried guarana seeds from Bahia State's Low Sul Identity Territory. Caffeine, theobromine, catechin, and epicatechin were determined by high-performance liquid chromatography with UV-visible detection (HPLC/UV-vis). Statistical tools, including analysis of variance (ANOVA), Tukey's test, and exploratory analysis, were employed to analyze the obtained data. Our findings indicated that the flavan-3-ols content in sun-dried guarana samples was lower compared to those dried using the alguidar oven, possibly due to exposure to ultraviolet radiation from solar energy. Conversely, we observed no significant differences (p > 0.05) in the average contents of methylxanthines between the two drying methods. Our supplementary experiments involving UV-A and UV-C radiation lamps revealed a decreasing trend in methylxanthines and flavan-3-ols contents with increasing duration of UV radiation exposure.
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Affiliation(s)
- André Luiz Sampaio da Silva Junior
- Laboratório de Pesquisa em Química AnalíticaDepartamento de Ciências ExatasUniversidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16 45662-900, Ilhéus, Bahia, Brazil
| | - Madson Moreira Nascimento
- Centro Universitário SENAI CIMATECAv. Orlando Gomes, 1845 - Piatã 41650-010, Salvador, Bahia, Brazil
| | - Herick Macedo Santos
- Laboratório de Pesquisa em Química AnalíticaDepartamento de Ciências ExatasUniversidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16 45662-900, Ilhéus, Bahia, Brazil
| | - Ivon Pinheiro Lôbo
- Laboratório de Pesquisa em Química AnalíticaDepartamento de Ciências ExatasUniversidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16 45662-900, Ilhéus, Bahia, Brazil
| | - Rosilene Aparecida de Oliveira
- Laboratório de Pesquisa em Química AnalíticaDepartamento de Ciências ExatasUniversidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16 45662-900, Ilhéus, Bahia, Brazil
| | - Raildo Mota de Jesus
- Laboratório de Pesquisa em Química AnalíticaDepartamento de Ciências ExatasUniversidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16 45662-900, Ilhéus, Bahia, Brazil
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Stefanello R, Puntel RT, da Silva Garcia WJ, Strazzabosco Dorneles L. Mitigating salt stress by conditioning seeds with ultraviolet light (UV-C) in white oats ( Avena sativa L.). JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024; 87:533-540. [PMID: 38660981 DOI: 10.1080/15287394.2024.2345878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Seed conditioning with ultraviolet light (UV-C) might (1) improve crop yield and quality, (2) reduce the use of agrochemicals during cultivation, and (3) increase plant survival in high salinity environments. The aim of this study was to examine the effects of UV-C conditioning of white oat seeds at two doses (0.85 and 3.42 kJ m-2) under salinity stress (100 mM NaCl). Seeds were sown on germination paper and kept in a germination chamber at 20°C. Germination and seedling growth parameters were evaluated after 5 and 10 days. Data demonstrated that excess salt reduced germination and initial growth of white oat seedlings. In all the variables analyzed, exposure of seeds to UV-C under salt stress exerted a positive effect compared to non-irradiated control. The attenuating influence of UV-C in germination was greater at 0.85 than at 3.42 kJ m-2. Thus, data indicate that conditioning white oat seeds in UV-C light produced greater tolerance to salt stress. These findings suggest that UV-C conditioning of white oat seeds may be considered as a simple and economical strategy to alleviate salt-induced stress.
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Affiliation(s)
- Raquel Stefanello
- Department of Biology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Raissa Tainá Puntel
- Graduate of Agronomy, Federal University of Santa Maria, Santa Maria, Brazil
| | | | - Lucio Strazzabosco Dorneles
- Laboratory of Nanostructured Magnetic Materials, Department of Physics, Federal University of Santa Maria, Santa Maria, Brazil
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Yan W, Dong X, Li R, Zhao X, Zhou Q, Luo D, Liu Z. Genome-wide identification of JAZ gene family members in autotetraploid cultivated alfalfa (Medicago sativa subsp. sativa) and expression analysis under salt stress. BMC Genomics 2024; 25:636. [PMID: 38926665 PMCID: PMC11201308 DOI: 10.1186/s12864-024-10460-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Jasmonate ZIM-domain (JAZ) proteins, which act as negative regulators in the jasmonic acid (JA) signalling pathway, have significant implications for plant development and response to abiotic stress. RESULTS Through a comprehensive genome-wide analysis, a total of 20 members of the JAZ gene family specific to alfalfa were identified in its genome. Phylogenetic analysis divided these 20 MsJAZ genes into five subgroups. Gene structure analysis, protein motif analysis, and 3D protein structure analysis revealed that alfalfa JAZ genes in the same evolutionary branch share similar exon‒intron, motif, and 3D structure compositions. Eight segmental duplication events were identified among these 20 MsJAZ genes through collinearity analysis. Among the 32 chromosomes of the autotetraploid cultivated alfalfa, there were 20 MsJAZ genes distributed on 17 chromosomes. Extensive stress-related cis-acting elements were detected in the upstream sequences of MsJAZ genes, suggesting that their response to stress has an underlying function. Furthermore, the expression levels of MsJAZ genes were examined across various tissues and under the influence of salt stress conditions, revealing tissue-specific expression and regulation by salt stress. Through RT‒qPCR experiments, it was discovered that the relative expression levels of these six MsJAZ genes increased under salt stress. CONCLUSIONS In summary, our study represents the first comprehensive identification and analysis of the JAZ gene family in alfalfa. These results provide important information for exploring the mechanism of JAZ genes in alfalfa salt tolerance and identifying candidate genes for improving the salt tolerance of autotetraploid cultivated alfalfa via genetic engineering in the future.
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Affiliation(s)
- Wei Yan
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Xueming Dong
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Rong Li
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Xianglong Zhao
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Qiang Zhou
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Dong Luo
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Zhipeng Liu
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China.
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Bhabani MG, Shams R, Dash KK. Microgreens and novel non-thermal seed germination techniques for sustainable food systems: a review. Food Sci Biotechnol 2024; 33:1541-1557. [PMID: 38623424 PMCID: PMC11016050 DOI: 10.1007/s10068-024-01529-9] [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: 09/11/2023] [Revised: 01/07/2024] [Accepted: 01/15/2024] [Indexed: 04/17/2024] Open
Abstract
There are a number of cutting-edge techniques implemented in the germination process, including high pressure processing, ultrasonic, ultraviolet, light, non-thermal plasma, magnetic field, microwave radiation, electrolyzed oxidizing water, and plasma activated water. The influence of these technological advances on seed germination procedure is addressed in this review. The use of these technologies has several benefits, including the enhancement of plant growth rate and the modulation of bioactive chemicals like ABA, protein, and peroxidase concentrations, as well as the suppression of microbial development. Microgreens' positive health effects, such as their antioxidant, anticancer, antiproliferative/pro-oxidant, anti-obesity, and anti-inflammatory properties are extensively reviewed. The phytochemical and bioactive components of microgreens were investigated, including the concentrations of vitamin K, vitamin C, vitamin E, micro and macro nutrients, pro-vitamin A, polyphenols, and glucosinolates. Furthermore, the potential commercial uses of microgreens, as well as the current market transformation and prospects for the future are explored.
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Affiliation(s)
- Mulakala Geeta Bhabani
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, Punjab India
| | - Rafeeya Shams
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, Punjab India
| | - Kshirod Kumar Dash
- Department of Food Processing Technology, Ghani Khan Choudhury Institute of Engineering and Technology, Malda, West Bengal India
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Rachappanavar V, Kumar M, Negi N, Chowdhury S, Kapoor M, Singh S, Rustagi S, Rai AK, Shreaz S, Negi R, Yadav AN. Silicon derived benefits to combat biotic and abiotic stresses in fruit crops: Current research and future challenges. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108680. [PMID: 38701606 DOI: 10.1016/j.plaphy.2024.108680] [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: 11/05/2023] [Revised: 03/19/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Fruit crops are frequently subjected to biotic and abiotic stresses that can significantly reduce the absorption and translocation of essential elements, ultimately leading to a decrease in crop yield. It is imperative to grow fruits and vegetables in areas prone to drought, salinity, and extreme high, and low temperatures to meet the world's minimum nutrient demand. The use of integrated approaches, including supplementation of beneficial elements like silicon (Si), can enhance plant resilience under various stresses. Silicon is the second most abundant element on the earth crust, following oxygen, which plays a significant role in development and promote plant growth. Extensive efforts have been made to explore the advantages of Si supplementation in fruit crops. The application of Si to plants reinforces the cell wall, providing additional support through enhancing a mechanical and biochemical processes, thereby improving the stress tolerance capacity of crops. In this review, the molecular and physiological mechanisms that explain the beneficial effects of Si supplementation in horticultural crop species have been discussed. The review describes the role of Si and its transporters in mitigation of abiotic stress conditions in horticultural plants.
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Affiliation(s)
- Vinaykumar Rachappanavar
- MS Swaminathan School of Agriculture, Shoolini University of Biotechnology and Management Sciences, Solan, Himachal Pradesh, India; Department of Seed Science and Technology, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, India.
| | - Manish Kumar
- Department of Seed Science and Technology, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, India
| | - Narender Negi
- ICAR-National Bureau of Plant Genetic Resources-Regional Station, Shimla, Phagli Shimla, Himachal Pradesh, India
| | - Sohini Chowdhury
- Chitkara Center for Research and Development, Chitkara University, Himachal Pradesh, India
| | - Monit Kapoor
- Centre of Research Impact and Outcome, University Institute of Engineering and Technology, Chitkara University, Rajpura, Punjab, India
| | - Sangram Singh
- Department of Biochemistry, Dr. Ram Manohar Lohia Avadh University, Faizabad, Uttar Pradesh, India
| | - Sarvesh Rustagi
- Department of Food Technology, School of Applied and Life Sciences, Uttaranchal University, Dehradun, Uttarakhand, India
| | - Ashutosh Kumar Rai
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Sheikh Shreaz
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, PO Box 24885, 13109, Safat, Kuwait
| | - Rajeshwari Negi
- Department of Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, Sirmaur, Himachal Pradesh, India
| | - Ajar Nath Yadav
- Department of Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, Sirmaur, Himachal Pradesh, India.
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Wang J, Meng Z, He H, Du P, Dijkwel PP, Shi S, Li H, Xie Q. Genome-Wide Analysis of BBX Gene Family in Three Medicago Species Provides Insights into Expression Patterns under Hormonal and Salt Stresses. Int J Mol Sci 2024; 25:5778. [PMID: 38891967 PMCID: PMC11171683 DOI: 10.3390/ijms25115778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
BBX protein is a class of zinc finger transcription factors that have B-box domains at the N-terminus, and some of these proteins contain a CCT domain at the C-terminus. It plays an important role in plant growth, development, and metabolism. However, the expression pattern of BBX genes in alfalfa under hormonal and salt stresses is still unclear. In this study, we identified a total of 125 BBX gene family members by the available Medicago reference genome in diploid alfalfa (Medicago sativa spp. Caerulea), a model plant (M. truncatula), and tetraploid alfalfa (M. sativa), and divided these members into five subfamilies. We found that the conserved motifs of BBXs of the same subfamily reveal similarities. We analyzed the collinearity relationship and duplication mode of these BBX genes and found that the expression pattern of BBX genes is specific in different tissues. Analysis of the available transcriptome data suggests that some members of the BBX gene family are involved in multiple abiotic stress responses, and the highly expressed genes are often clustered together. Furthermore, we identified different expression patterns of some BBX genes under salt, ethylene, salt and ethylene, salicylic acid, and salt and salicylic acid treatments, verified by qRT-PCR, and analyzed the subcellular localization of MsBBX2, MsBBX17, and MsBBX32 using transient expression in tobacco. The results showed that BBX genes were localized in the nucleus. This study systematically analyzed the BBX gene family in Medicago plants, which provides a basis for the study of BBX gene family tolerance to abiotic stresses.
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Affiliation(s)
- Jiayin Wang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832003, China; (J.W.); (Z.M.); (H.H.); (P.D.); (S.S.)
| | - Zhuang Meng
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832003, China; (J.W.); (Z.M.); (H.H.); (P.D.); (S.S.)
| | - Huan He
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832003, China; (J.W.); (Z.M.); (H.H.); (P.D.); (S.S.)
| | - Pingping Du
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832003, China; (J.W.); (Z.M.); (H.H.); (P.D.); (S.S.)
| | - Paul P. Dijkwel
- School of Natural Sciences, Massey University, Tennent Drive, Palmerston North 4474, New Zealand;
| | - Shandang Shi
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832003, China; (J.W.); (Z.M.); (H.H.); (P.D.); (S.S.)
| | - Hongbin Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832003, China; (J.W.); (Z.M.); (H.H.); (P.D.); (S.S.)
| | - Quanliang Xie
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-Basin System Ecology, College of Life Sciences, Shihezi University, Shihezi 832003, China; (J.W.); (Z.M.); (H.H.); (P.D.); (S.S.)
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8
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Zhang Z, Xia Z, Zhou C, Wang G, Meng X, Yin P. Insights into Salinity Tolerance in Wheat. Genes (Basel) 2024; 15:573. [PMID: 38790202 PMCID: PMC11121000 DOI: 10.3390/genes15050573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/26/2024] Open
Abstract
Salt stress has a detrimental impact on food crop production, with its severity escalating due to both natural and man-made factors. As one of the most important food crops, wheat is susceptible to salt stress, resulting in abnormal plant growth and reduced yields; therefore, damage from salt stress should be of great concern. Additionally, the utilization of land in coastal areas warrants increased attention, given diminishing supplies of fresh water and arable land, and the escalating demand for wheat. A comprehensive understanding of the physiological and molecular changes in wheat under salt stress can offer insights into mitigating the adverse effects of salt stress on wheat. In this review, we summarized the genes and molecular mechanisms involved in ion transport, signal transduction, and enzyme and hormone regulation, in response to salt stress based on the physiological processes in wheat. Then, we surveyed the latest progress in improving the salt tolerance of wheat through breeding, exogenous applications, and microbial pathways. Breeding efficiency can be improved through a combination of gene editing and multiple omics techniques, which is the fundamental strategy for dealing with salt stress. Possible challenges and prospects in this process were also discussed.
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Affiliation(s)
| | | | | | | | | | - Pengcheng Yin
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; (Z.Z.); (Z.X.); (C.Z.); (G.W.); (X.M.)
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9
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Dong L, Hua Y, Gao Z, Wu H, Hou Y, Chu Y, Zhang J, Cui G. The Multiple Promoting Effects of Suaeda glauca Root Exudates on the Growth of Alfalfa under NaCl Stress. PLANTS (BASEL, SWITZERLAND) 2024; 13:752. [PMID: 38592745 PMCID: PMC10974879 DOI: 10.3390/plants13060752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 04/10/2024]
Abstract
Under abiotic stress, plant root exudates can improve plant growth performance. However, studies on the effect of root exudates on the stress resistance of another plant are insufficient. In this study, root exudates (REs) were extracted from Suaeda glauca to explore their effect on alfalfa seedlings under salt stress. The results showed that the plant height and fresh weight of alfalfa significantly increased by 47.72% and 53.39% after 7 days of RE treatment at a 0.4% NaCl concentration. Under 1.2% salt stress, REs reduced the Malondialdehyde content in alfalfa by 30.14% and increased the activity of its antioxidant enzymes (peroxidase and catalase) and the content of its osmotic regulators (soluble sugar and proline) by 60.68%, 52%, 45.67%, and 38.67%, respectively. Soil enzyme activity and the abundance of soil-beneficial bacteria were increased by REs. Spearman analysis showed that urease and neutral phosphatase were related to the richness of beneficial bacteria. Redundancy analysis confirmed that urease affected the composition of the soil bacterial community. The partial least squares structural equation model (PLS-SEM) revealed that REs had a direct positive effect on alfalfa growth under salt stress by regulating the plant's injury and antioxidant systems, and the soil bacterial community had an indirect positive effect on alfalfa growth through soil enzyme activity.
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Affiliation(s)
| | | | | | | | | | | | | | - Guowen Cui
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (L.D.); (Y.H.); (Z.G.); (H.W.); (Y.H.); (Y.C.); (J.Z.)
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10
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Wang D, Lv S, Guo Z, Lin K, Zhang X, Jiang P, Lou T, Yi Z, Zhang B, Xie W, Li Y. PHT1;5 Repressed by ANT Mediates Pi Acquisition and Distribution under Low Pi and Salinity in Salt Cress. PLANT & CELL PHYSIOLOGY 2024; 65:20-34. [PMID: 37758243 DOI: 10.1093/pcp/pcad114] [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: 04/27/2023] [Revised: 09/19/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023]
Abstract
Salinity and phosphate (Pi) starvation are the most common abiotic stresses that threaten crop productivity. Salt cress (Eutrema salsugineum) displays good tolerance to both salinity and Pi limitation. Previously, we found several Phosphate Transporter (PHT) genes in salt cress upregulated under salinity. Here, EsPHT1;5 induced by both low Pi (LP) and salinity was further characterized. Overexpression of EsPHT1;5 in salt cress enhanced plant tolerance to LP and salinity, while the knock-down lines exhibited growth retardation. The analysis of phosphorus (P) content and shoot/root ratio of total P in EsPHT1;5-overexpressing salt cress seedlings and the knock-down lines as well as arsenate uptake assays suggested the role of EsPHT1;5 in Pi acquisition and root-shoot translocation under Pi limitation. In addition, overexpression of EsPHT1;5 driven by the native promoter in salt cress enhanced Pi mobilization from rosettes to siliques upon a long-term salt treatment. Particularly, the promoter of EsPHT1;5 outperformed that of AtPHT1;5 in driving gene expression under salinity. We further identified a transcription factor EsANT, which negatively regulated EsPHT1;5 expression and plant tolerance to LP and salinity. Taken together, EsPHT1;5 plays an integral role in Pi acquisition and distribution in plant response to LP and salt stress. Further, EsANT may be involved in the cross-talk between Pi starvation and salinity signaling pathways. This work provides further insight into the mechanism underlying high P use efficiency in salt cress in its natural habitat, and evidence for a link between Pi and salt signaling.
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Affiliation(s)
- Duoliya Wang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Sulian Lv
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Zijing Guo
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Kangqi Lin
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Xuan Zhang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Ping Jiang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Tengxue Lou
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Ze Yi
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Bo Zhang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Wenzhu Xie
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
| | - Yinxin Li
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing, China
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11
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Vergara-Diaz O, Velasco-Serrano E, Invernón-Garrido A, Katamadze A, Yoldi-Achalandabaso A, Serret MD, Vicente R. Quinoa panicles contribute to carbon assimilation and are more tolerant to salt stress than leaves. JOURNAL OF PLANT PHYSIOLOGY 2024; 292:154161. [PMID: 38142485 DOI: 10.1016/j.jplph.2023.154161] [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: 08/02/2023] [Revised: 11/20/2023] [Accepted: 12/08/2023] [Indexed: 12/26/2023]
Abstract
Contribution of inflorescences to seed filling have attracted great attention given the resilience of this photosynthetic organ to stressful conditions. However, studies have been almost exclusively focused to small grain cereals. In this study, we aimed to explore these responses in quinoa, as a climate resilient seed crop of elevated economic and nutritious potential. We compared the physiological and metabolic performance of panicles and leaves of two quinoa cultivars growing under contrasting salinity levels. Plant growth, photosynthetic and transpiratory gas exchange and chlorophyll fluorescence were monitored in inflorescences and leaves throughout the experiment. At flowering stage, young and mature leaves and panicles were sampled for key metabolic markers related to carbon, nitrogen and secondary metabolisms. When subjected to salt stress, panicles showed attenuated declines on photosynthesis, water use, pigments, amino acids, and protein levels as compared to leaves. In fact, the assimilation rates, together with a high hexose content evidenced an active photosynthetic role of the panicle under optimal and salt stress conditions. Moreover, we also found significant genotypic variability for physiological and metabolic traits of panicles and leaves, which emphasizes the study of genotype-dependent stress responses at the whole plant level. We conclude that quinoa panicles are less affected by salt stress than leaves, which encourages further research and exploitation of this organ for crop improvement and stress resilience considering the high natural diversity.
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Affiliation(s)
- Omar Vergara-Diaz
- Plant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal.
| | - Elena Velasco-Serrano
- Integrative Crop Ecophysiology Group, Section of Plant Physiology, Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain; AGROTECNIO-CERCA Center, 25198, Lleida, Spain.
| | - Alicia Invernón-Garrido
- Integrative Crop Ecophysiology Group, Section of Plant Physiology, Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain; AGROTECNIO-CERCA Center, 25198, Lleida, Spain.
| | - Artūrs Katamadze
- Plant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal.
| | - Ander Yoldi-Achalandabaso
- Plant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal; FisioClimaCO(2) Group, Department of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48080, Bilbao, Spain.
| | - Maria Dolores Serret
- Integrative Crop Ecophysiology Group, Section of Plant Physiology, Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain; AGROTECNIO-CERCA Center, 25198, Lleida, Spain.
| | - Rubén Vicente
- Plant Ecophysiology and Metabolism Group, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal.
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12
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Shi Y, Li Y, Liu T, Guo C, Liang W, Ma F, Li C. γ-Aminobutyric acid enhances salt tolerance by sustaining ion homeostasis in apples. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108306. [PMID: 38154298 DOI: 10.1016/j.plaphy.2023.108306] [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: 12/05/2023] [Accepted: 12/22/2023] [Indexed: 12/30/2023]
Abstract
Soil salinization had become a global ecological problem, which restricts the plant growth, and the quantity and quality of fruits. As a signaling molecule, γ-Aminobutyric acid (GABA) mediates a series of physiological processes and stress responses. Our previous research showed that GABA could alleviate drought, low phosphorus, cadmium stresses in apples, but the further research about its physiological mechanisms under salt stress was even more needed. The present study showed that the inhibition of salt stress on plant growth might be effectively alleviated by the treatment of 0.5 mM GABA, and the osmotic balance and photosynthetic capacity of plants could be maintained. Exogenous GABA could effectively inhibit the enrichment of reactive oxygen species and the uptake of Na+, while maintaining ion homeostasis. The experiment results indicated GABA could markedly promote the expression amount of Na+ and K+ transport-related genes (e.g., HKT1, AKT1, NHX1, SOS1, SOS2, and SOS3) in apples under salt stress. Overexpression and interference (RNAi) of MdGAD1 in apple roots, which is a crucial enzyme in the GABA biosynthesis, affected the salt tolerance of plants. Transgenic apple plants with roots of overexpression MdGAD1 showed less relative electrolyte leakage and more expression level of related ion transport genes than CK group, but RNAi MdGAD1 led to the opposite results. These results indicated that GABA accumulation could effectively strengthen the resistance of apple plants to salt stress and alleviate the injury of apple seedlings resulted from salinity.
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Affiliation(s)
- Yanjiao Shi
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yuxing Li
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Tanfang Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chengyu Guo
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wei Liang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Fengwang Ma
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Cuiying Li
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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13
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Li Q, Fu H, Yu X, Wen X, Guo H, Guo Y, Li J. The SALT OVERLY SENSITIVE 2-CONSTITUTIVE TRIPLE RESPONSE1 module coordinates plant growth and salt tolerance in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:391-404. [PMID: 37721807 DOI: 10.1093/jxb/erad368] [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: 06/01/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
High salinity stress promotes plant ethylene biosynthesis and triggers the ethylene signalling response. However, the precise mechanism underlying how plants transduce ethylene signalling in response to salt stress remains largely unknown. In this study, we discovered that SALT OVERLY SENSITIVE 2 (SOS2) inhibits the kinase activity of CONSTITUTIVE TRIPLE RESPONSE1 (CTR1) by phosphorylating the 87th serine (S87). This phosphorylation event activates the ethylene signalling response, leading to enhanced plant salt resistance. Furthermore, through genetic analysis, we determined that the loss of CTR1 or the gain of SOS2-mediated CTR1 phosphorylation both contribute to improved plant salt tolerance. Additionally, in the sos2 mutant, we observed compromised proteolytic processing of ETHYLENE INSENSITIVE 2 (EIN2) and reduced nuclear localization of EIN2 C-terminal fragments (EIN2-C), which correlate with decreased accumulation of ETHYLENE INSENSITIVE 3 (EIN3). Collectively, our findings unveil the role of the SOS2-CTR1 regulatory module in promoting the activation of the ethylene signalling pathway and enhancing plant salt tolerance.
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Affiliation(s)
- Qinpei Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Haiqi Fu
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiang Yu
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xing Wen
- Institute of Plant and Food Science, Department of Biology, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hongwei Guo
- Institute of Plant and Food Science, Department of Biology, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jingrui Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
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14
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Goswami SK, Kashyap AS, Kumar R, Gujjar RS, Singh A, Manzar N. Harnessing Rhizospheric Microbes for Eco-friendly and Sustainable Crop Production in Saline Environments. Curr Microbiol 2023; 81:14. [PMID: 38006515 DOI: 10.1007/s00284-023-03538-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/24/2023] [Indexed: 11/27/2023]
Abstract
Soil salinization is a global issue that negatively impacts crop yield and has become a prime concern for researchers worldwide. Many important crop plants are susceptible to salinity-induced stresses, including ionic and osmotic stress. Approximately, 20% of the world's cultivated and 33% of irrigated land is affected by salt. While various agricultural practices have been successful in alleviating salinity stress, they can be costly and not environment-friendly. Therefore, there is a need for cost-effective and eco-friendly practices to improve soil health. One promising approach involves utilizing microbes found in the vicinity of plant roots to mitigate the effects of salinity stress and enhance plant growth as well as crop yield. By exploiting the salinity tolerance of plants and their associated rhizospheric microorganisms, which have plant growth-promoting properties, it is possible to reduce the adverse effects of salt stress on crop plants. The soil salinization is a common problem in the world, due to which we are unable to use the saline land. To make proper use of this land for different crops, microorganisms can play an important role. Looking at the increasing population of the world, this will be an appreciated effort to make the best use of the wasted land for food security. The updated information on this issue is needed. In this context, this article provides a concise review of the latest research on the use of salt-tolerant rhizospheric microorganisms to mitigate salinity stress in crop plants.
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Affiliation(s)
- Sanjay K Goswami
- ICAR-Indian Institute of Sugarcane Research, Rai Bareli Road, Dilkusha, Lucknow, Uttar Pradesh, 220026, India
| | - Abhijeet S Kashyap
- ICAR-National Bureau of Agriculturally Important Microorganism, Mau, 275103, India
| | - Rajeev Kumar
- ICAR-Indian Institute of Sugarcane Research, Rai Bareli Road, Dilkusha, Lucknow, Uttar Pradesh, 220026, India
| | - Ranjit Singh Gujjar
- ICAR-Indian Institute of Sugarcane Research, Rai Bareli Road, Dilkusha, Lucknow, Uttar Pradesh, 220026, India.
| | - Arjun Singh
- ICAR-CSSRI Regional Research Station, Rai Bareli Road, Dilkusha, Lucknow, Uttar Pradesh, 220026, India
| | - Nazia Manzar
- ICAR-National Bureau of Agriculturally Important Microorganism, Mau, 275103, India
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15
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Du J, Zhu X, He K, Kui M, Zhang J, Han X, Fu Q, Jiang Y, Hu Y. CONSTANS interacts with and antagonizes ABF transcription factors during salt stress under long-day conditions. PLANT PHYSIOLOGY 2023; 193:1675-1694. [PMID: 37379562 DOI: 10.1093/plphys/kiad370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/30/2023]
Abstract
CONSTANS (CO) is a critical regulator of flowering that combines photoperiodic and circadian signals in Arabidopsis (Arabidopsis thaliana). CO is expressed in multiple tissues, including seedling roots and young leaves. However, the roles and underlying mechanisms of CO in modulating physiological processes outside of flowering remain obscure. Here, we show that the expression of CO responds to salinity treatment. CO negatively mediated salinity tolerance under long-day (LD) conditions. Seedlings from co-mutants were more tolerant to salinity stress, whereas overexpression of CO resulted in plants with reduced tolerance to salinity stress. Further genetic analyses revealed the negative involvement of GIGANTEA (GI) in salinity tolerance requires a functional CO. Mechanistic analysis demonstrated that CO physically interacts with 4 critical basic leucine zipper (bZIP) transcription factors; ABSCISIC ACID-RESPONSIVE ELEMENT BINDING FACTOR1 (ABF1), ABF2, ABF3, and ABF4. Disrupting these ABFs made plants hypersensitive to salinity stress, demonstrating that ABFs enhance salinity tolerance. Moreover, ABF mutations largely rescued the salinity-tolerant phenotype of co-mutants. CO suppresses the expression of several salinity-responsive genes and influences the transcriptional regulation function of ABF3. Collectively, our results show that the LD-induced CO works antagonistically with ABFs to modulate salinity responses, thus revealing how CO negatively regulates plant adaptation to salinity stress.
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Affiliation(s)
- Jiancan Du
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Xiang Zhu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Institute for Laboratory Animal Research, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Kunrong He
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengyi Kui
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juping Zhang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao Han
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Qiantang Fu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanjuan Jiang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanru Hu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
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16
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Li L, Du L, Cao Q, Yang Z, Liu Y, Yang H, Duan X, Meng Z. Salt Tolerance Evaluation of Cucumber Germplasm under Sodium Chloride Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:2927. [PMID: 37631139 PMCID: PMC10459999 DOI: 10.3390/plants12162927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/29/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
Cucumber (Cucumis sativus L.) is an important horticultural crop worldwide. Sodium (Na+) and chloride (Cl-) in the surface soil are the major limiting factors in coastal areas of Shandong Province in China. Therefore, to understand the mechanism used by cucumber to adapt to sodium chloride (NaCl), we analyzed the phenotypic and physiological indicators of eighteen cucumber germplasms after three days under 100 and 150 mM NaCl treatment. A cluster analysis revealed that eighteen germplasms could be divided into five groups based on their physiological indicators. The first three groups consisted of seven salt-tolerant and medium salt-tolerant germplasms, including HLT1128h, Zhenni, and MC2065. The two remaining groups consisted of five medium salt-sensitive germplasms, including DM26h and M1-2-h-10, and six salt-sensitive germplasms including M1XT and 228. A principal component analysis revealed that the trend of comprehensive scores was consistent with the segmental cluster analysis and survival rates of cucumber seedlings. Overall, the phenotype, comprehensive survival rate, cluster analysis, and principal component analysis revealed that the salt-tolerant and salt-sensitive germplasms were Zhenni, F11-15, MC2065, M1XT, M1-2-h-10, and DM26h. The results of this study will provide references to identify or screen salt-tolerant cucumber germplasms and lay a foundation for breeding salt-tolerant cucumber varieties.
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Affiliation(s)
- Libin Li
- Key Laboratory of Greenhouse Vegetable Biology of Shandong Province, Vegetable Science Observation and Experiment Station in Huang—Huai Region of Ministry of Agriculture (Shandong), Shandong Branch of National Vegetable Improvement Center, Vegetable Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China (Q.C.)
| | - Lianda Du
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian 271018, China
| | - Qiwei Cao
- Key Laboratory of Greenhouse Vegetable Biology of Shandong Province, Vegetable Science Observation and Experiment Station in Huang—Huai Region of Ministry of Agriculture (Shandong), Shandong Branch of National Vegetable Improvement Center, Vegetable Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China (Q.C.)
| | - Zonghui Yang
- Key Laboratory of Greenhouse Vegetable Biology of Shandong Province, Vegetable Science Observation and Experiment Station in Huang—Huai Region of Ministry of Agriculture (Shandong), Shandong Branch of National Vegetable Improvement Center, Vegetable Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China (Q.C.)
| | - Yihan Liu
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Hua Yang
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Xi Duan
- College of Agricultural Science and Technology, Shandong Agriculture and Engineering University, Jinan 250100, China
| | - Zhaojuan Meng
- Key Laboratory of Greenhouse Vegetable Biology of Shandong Province, Vegetable Science Observation and Experiment Station in Huang—Huai Region of Ministry of Agriculture (Shandong), Shandong Branch of National Vegetable Improvement Center, Vegetable Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China (Q.C.)
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17
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Ye N, Wang Y, Yu H, Qin Z, Zhang J, Duan M, Liu L. Abscisic Acid Enhances Trehalose Content via OsTPP3 to Improve Salt Tolerance in Rice Seedlings. PLANTS (BASEL, SWITZERLAND) 2023; 12:2665. [PMID: 37514279 PMCID: PMC10383865 DOI: 10.3390/plants12142665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/13/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023]
Abstract
Salt stress is one of the major environmental stresses that imposes constraints to plant growth and production. Abscisic acid (ABA) has been well-proven to function as a central integrator in plant under salt stress, and trehalose (Tre) has emerged as an excellent osmolyte to induce salt tolerance. However, the interacting mechanism between ABA and Tre in rice seedlings under salt stress is still obscure. Here, we found that the application of exogenous Tre significantly promoted the salt tolerance of rice seedlings by enhancing the activities of antioxidant enzymes. In addition, the expression of OsNCED3 was significantly induced by salt stress. The overexpression of the OsNCED3 gene enhanced the salt tolerance, while the knockout of OsNCED3 reduced the salt tolerance of the rice seedlings. Metabolite analysis revealed that the Tre content was increased in the OsNCED3-overexpressing seedlings and reduced in the nced3 mutant. The application of both ABA and Tre improved the salt tolerance of the nced3 mutant when compared with the WT seedling. OsTPP3 was found to be induced by both the ABA and salt treatments. Consistent with the OsNCED3 gene, the overexpression of OsTPP3 enhanced salt tolerance while the knockout of OsTPP3 reduced the salt tolerance of the rice seedlings. In addition, the Tre content was also higher in the OsTPP3-overexpressing seedling and lower in the tpp3 mutant seedling than the WT plant. The application of exogenous Tre also enhanced the salt tolerance of the tpp3 mutant plant. Overall, our results demonstrate that salt-increased ABA activated the expression of OsTPP3, which resulted in elevated Tre content and thus an improvement in the salt tolerance of rice seedlings.
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Affiliation(s)
- Nenghui Ye
- Hunan Provincial Key Laboratory of Rice Stress Biology, College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Key Laboratory of Crop Physiology and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha 410128, China
| | - Yuxing Wang
- Hunan Provincial Key Laboratory of Rice Stress Biology, College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Huihui Yu
- Hunan Provincial Key Laboratory of Rice Stress Biology, College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Zhonge Qin
- Hunan Provincial Key Laboratory of Rice Stress Biology, College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Kowloon, Hong Kong 999077, China
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong 999077, China
| | - Meijuan Duan
- Hunan Provincial Key Laboratory of Rice Stress Biology, College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Key Laboratory of Crop Physiology and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha 410128, China
| | - Ling Liu
- Hunan Provincial Key Laboratory of Rice Stress Biology, College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Key Laboratory of Crop Physiology and Molecular Biology, Ministry of Education, Hunan Agricultural University, Changsha 410128, China
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18
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Fu H, Yang Y. How Plants Tolerate Salt Stress. Curr Issues Mol Biol 2023; 45:5914-5934. [PMID: 37504290 PMCID: PMC10378706 DOI: 10.3390/cimb45070374] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 07/29/2023] Open
Abstract
Soil salinization inhibits plant growth and seriously restricts food security and agricultural development. Excessive salt can cause ionic stress, osmotic stress, and ultimately oxidative stress in plants. Plants exclude excess salt from their cells to help maintain ionic homeostasis and stimulate phytohormone signaling pathways, thereby balancing growth and stress tolerance to enhance their survival. Continuous innovations in scientific research techniques have allowed great strides in understanding how plants actively resist salt stress. Here, we briefly summarize recent achievements in elucidating ionic homeostasis, osmotic stress regulation, oxidative stress regulation, and plant hormonal responses under salt stress. Such achievements lay the foundation for a comprehensive understanding of plant salt-tolerance mechanisms.
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Affiliation(s)
- Haiqi Fu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
- Tianjin Key Laboratory of Crop Genetics and Breeding, Institute of Crop Sciences, Tianjin Academy of Agricultural Sciences, Tianjin 300380, China
| | - Yongqing Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
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19
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Fgaier S, Aarrouf J, Lopez-Lauri F, Lizzi Y, Poiroux F, Urban L. Effect of high salinity and of priming of non-germinated seeds by UV-C light on photosynthesis of lettuce plants grown in a controlled soilless system. FRONTIERS IN PLANT SCIENCE 2023; 14:1198685. [PMID: 37469782 PMCID: PMC10352585 DOI: 10.3389/fpls.2023.1198685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 06/14/2023] [Indexed: 07/21/2023]
Abstract
High salinity results in a decrease in plant photosynthesis and crop productivity. The aim of the present study was to evaluate the effect of UV-C priming treatments of lettuce seeds on photosynthesis of plants grown at high salinity. Non-primed and primed seeds were grown in an hydroponic system, with a standard nutrient solution, either supplemented with 100 mM NaCl (high salinity), or not (control). Considering that leaf and root K+ concentrations remained constant and that chlorophyll fluorescence parameters and root growth were not affected negatively in the high salinity treatment, we conclude that the latter was at the origin of a moderate stress only. A substantial decrease in leaf net photosynthetic assimilation (Anet) was however observed as a consequence of stomatal and non-stomatal limitations in the high salinity treatment. This decrease in Anet translated into a decrease in growth parameters; it may be attributed partially to the high salinity-associated increase in leaf concentration in abscisic acid and decrease in stomatal conductance. Priming by UV-C light resulted in an increase in total photosynthetic electron transport rate and Anet in the leaves of plants grown at high salinity. The increase of the latter translated into a moderate increase in growth parameters. It is hypothesized that the positive effect of UV-C priming on Anet and growth of the aerial part of lettuce plants grown at high salinity, is mainly due to its stimulating effect on leaf concentration in salicylic acid. Even though leaf cytokinins' concentration was higher in plants from primed seeds, maintenance of the cytokinins-to-abscisic acid ratio also supports the idea that UV-C priming resulted in protection of plants exposed to high salinity.
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Affiliation(s)
- Salah Fgaier
- Unité Propre de Recherche Innovante, Equipe de Recherche et d'Innovations Thématiques (ERIT) Plant Science, Interactions and Innovation, Avignon Université, Avignon, France
- Nova Genetic, Zone Anjou Actiparc de Jumelles, Longué-Jumelles, France
| | - Jawad Aarrouf
- Unité Propre de Recherche Innovante, Equipe de Recherche et d'Innovations Thématiques (ERIT) Plant Science, Interactions and Innovation, Avignon Université, Avignon, France
| | - Félicie Lopez-Lauri
- Unité Propre de Recherche Innovante, Equipe de Recherche et d'Innovations Thématiques (ERIT) Plant Science, Interactions and Innovation, Avignon Université, Avignon, France
| | - Yves Lizzi
- Unité Propre de Recherche Innovante, Equipe de Recherche et d'Innovations Thématiques (ERIT) Plant Science, Interactions and Innovation, Avignon Université, Avignon, France
| | - Florine Poiroux
- Nova Genetic, Zone Anjou Actiparc de Jumelles, Longué-Jumelles, France
| | - Laurent Urban
- Unité Propre de Recherche Innovante, Equipe de Recherche et d'Innovations Thématiques (ERIT) Plant Science, Interactions and Innovation, Avignon Université, Avignon, France
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Yin Y, Fan S, Li S, Amombo E, Fu J. Involvement of cell cycle and ion transferring in the salt stress responses of alfalfa varieties at different development stages. BMC PLANT BIOLOGY 2023; 23:343. [PMID: 37370008 DOI: 10.1186/s12870-023-04335-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND Alfalfa (Medicago sativa) is the worldwide major feed crop for livestock. However, forage quality and productivity are reduced by salt stress, which is a common issue in alfalfa-growing regions. The relative salt tolerance is changed during plant life cycle. This research aimed to investigate the relative salt tolerance and the underlying mechanisms of two alfalfa varieties at different developmental stages. RESULTS Two alfalfa varieties, "Zhongmu No.1 (ZM1)" and "D4V", with varying salt tolerance, were subjected to salt stress (0, 100, 150 mM NaCl). When the germinated seeds were exposed to salt stress, D4V exhibited enhanced primary root growth compared to ZM1 due to the maintenance of meristem size, sustained or increased expression of cell cycle-related genes, greater activity of antioxidant enzymes and higher level of IAA. These findings indicated that D4V was more tolerant than ZM1 at early developmental stage. However, when young seedlings were exposed to salt stress, ZM1 displayed a lighter wilted phenotype and leaf cell death, higher biomass and nutritional quality, lower relative electrolytic leakage (EL) and malondialdehyde (MDA) concentration. In addition, ZM1 obtained a greater antioxidant capacity in leaves, indicated by less accumulation of hydrogen peroxide (H2O2) and higher activity of antioxidant enzymes. Further ionic tissue-distribution analysis identified that ZM1 accumulated less Na+ and more K+ in leaves and stems, resulting in lower Na+/K+ ratio, because of possessing higher expression of ion transporters and sensitivity of stomata closure. Therefore, the relative salt tolerance of ZM1 and D4V was reversed at young seedling stages, with the young seedlings of the former being more salt-tolerant. CONCLUSION Our data revealed the changes of relative order of salt tolerance between alfalfa varieties as they develop. Meristem activity in primary root tips and ion transferring at young seedling stages were underlying mechanisms that resulted in differences in salt tolerance at different developmental stages.
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Affiliation(s)
- YanLing Yin
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, People's Republic of China
| | - ShuGao Fan
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, People's Republic of China
| | - Shuang Li
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, People's Republic of China
| | - Erick Amombo
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, People's Republic of China
| | - JinMin Fu
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, People's Republic of China.
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Czarnek K, Tatarczak-Michalewska M, Dreher P, Rajput VD, Wójcik G, Gierut-Kot A, Szopa A, Blicharska E. UV-C Seed Surface Sterilization and Fe, Zn, Mg, Cr Biofortification of Wheat Sprouts as an Effective Strategy of Bioelement Supplementation. Int J Mol Sci 2023; 24:10367. [PMID: 37373518 PMCID: PMC10298951 DOI: 10.3390/ijms241210367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/10/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Metalloenzymes play an important role in the regulation of many biological functions. An effective way to prevent deficiencies of essential minerals in human diets is the biofortification of plant materials. The process of enriching crop sprouts under hydroponic conditions is the easiest and cheapest to conduct and control. In this study, the sprouts of the wheat (Triticum aestivum L.) varieties Arkadia and Tonacja underwent biofortification with Fe, Zn, Mg, and Cr solutions in hydroponic media at four concentrations (0, 50, 100, and 200 µg g-1) over four and seven days. Moreover, this study is the first to combine sprout biofortification with UV-C (λ = 254 nm) radiation treatment for seed surface sterilization. The results showed that UV-C radiation was effective in suppressing seed germination contamination by microorganisms. The seed germination energy was slightly affected by UV-C radiation but remained at a high level (79-95%). The influence of this non-chemical sterilization process on seeds was tested in an innovative manner using a scanning electron microscope (SEM) and EXAKT thin-section cutting. The applied sterilization process reduced neither the growth and development of sprouts nor nutrient bioassimilation. In general, wheat sprouts easily accumulate Fe, Zn, Mg, and Cr during the applied growth period. A very strong correlation between the ion concentration in the media and microelement assimilation in the plant tissues (R2 > 0.9) was detected. The results of the quantitative ion assays performed with atomic absorption spectrometry (AAS) using the flame atomization method were correlated with the morphological evaluation of sprouts in order to determine the optimum concentration of individual elements in the hydroponic solution. The best conditions were indicated for 7-day cultivation in 100 µg g-1 of solutions with Fe (218% and 322% better nutrient accumulation in comparison to the control condition) and Zn (19 and 29 times richer in zinc concentration compared to the sprouts without supplementation). The maximum plant product biofortification with magnesium did not exceed 40% in intensity compared to the control sample. The best-developed sprouts were grown in the solution with 50 µg g-1 of Cr. In contrast, the concentration of 200 µg g-1 was clearly toxic to the wheat sprouts.
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Affiliation(s)
- Katarzyna Czarnek
- Institute of Medical Science, Faculty of Medical, The John Paul II Catholic University of Lublin, Konstantynów 1 H Str., 20-708 Lublin, Poland
| | - Małgorzata Tatarczak-Michalewska
- Department of Pathobiochemistry and Interdisciplinary Applications of Ion Chromatography, Biomedical Sciences, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland;
| | - Piotr Dreher
- Chair and Department of Public Health, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland;
| | - Vishnu D. Rajput
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia;
| | - Grzegorz Wójcik
- Department of Inorganic Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland;
| | - Anna Gierut-Kot
- Intermag sp. z o.o. R+D Department, Al. 1000-Lecia 15G, 32-300 Olkusz, Poland;
| | - Agnieszka Szopa
- Chair and Department of Pharmaceutical Botany, Jagiellonian University Medical College, Medyczna 9 Str., 30-688 Kraków, Poland;
| | - Eliza Blicharska
- Department of Pathobiochemistry and Interdisciplinary Applications of Ion Chromatography, Biomedical Sciences, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland;
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22
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Sun M, Liu X, Zhang B, Yu W, Xiao Y, Peng F. Lipid Metabolomic and Transcriptomic Analyses Reveal That Phosphatidylcholine Enhanced the Resistance of Peach Seedlings to Salt Stress through Phosphatidic Acid. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37262364 DOI: 10.1021/acs.jafc.3c01383] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Soil salinity is a major conlinet limiting sustainable agricultural development in peach tree industry. In this study, lipid metabolomic pathway analysis indicated that phosphatidic acid is essential for root resistance to salt stress in peach seedlings. Through functional annotation analysis of differentially expressed genes in transcriptomics, we found that MAPK signaling pathway is closely related to peach tree resistance to salt stress, wherein PpMPK6 expression is significantly upregulated. Under salt conditions, the OE-PpMPK6 Arabidopsis thaliana (L.) Heynh. line showed higher resistance to salt stress than WT and KO-AtMPK6 lines. Furthermore, we found that the Na+ content in OE-PpMPK6 roots was significantly lower than that in WT and KO-AtMPK6 roots, indicating that phosphatidic acid combined with PpMPK6 activated the SOS1 (salt-overly-sensitive 1) protein to enhance Na+ efflux, thus alleviating the damage caused by NaCl in roots; these findings provide insight into the salt stress-associated transcriptional regulation.
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Affiliation(s)
- Maoxiang Sun
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Xiaolong Liu
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Binbin Zhang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Wen Yu
- Key Laboratory of Biochemistry and Molecular Biology in Universities of Shandong, College of Seed and Facility Agricultural Engineering, Weifang University, Weifang 261061, Shandong, China
| | - Yuansong Xiao
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Futian Peng
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
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Gureeva MV, Gureev AP. Molecular Mechanisms Determining the Role of Bacteria from the Genus Azospirillum in Plant Adaptation to Damaging Environmental Factors. Int J Mol Sci 2023; 24:ijms24119122. [PMID: 37298073 DOI: 10.3390/ijms24119122] [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: 04/28/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
Agricultural plants are continuously exposed to environmental stressors, which can lead to a significant reduction in yield and even the death of plants. One of the ways to mitigate stress impacts is the inoculation of plant growth-promoting rhizobacteria (PGPR), including bacteria from the genus Azospirillum, into the rhizosphere of plants. Different representatives of this genus have different sensitivities or resistances to osmotic stress, pesticides, heavy metals, hydrocarbons, and perchlorate and also have the ability to mitigate the consequences of such stresses for plants. Bacteria from the genus Azospirillum contribute to the bioremediation of polluted soils and induce systemic resistance and have a positive effect on plants under stress by synthesizing siderophores and polysaccharides and modulating the levels of phytohormones, osmolytes, and volatile organic compounds in plants, as well as altering the efficiency of photosynthesis and the antioxidant defense system. In this review, we focus on molecular genetic features that provide bacterial resistance to various stress factors as well as on Azospirillum-related pathways for increasing plant resistance to unfavorable anthropogenic and natural factors.
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Affiliation(s)
- Maria V Gureeva
- Department of Biochemistry and Cell Physiology, Voronezh State University, 394018 Voronezh, Russia
| | - Artem P Gureev
- Department of Biochemistry and Cell Physiology, Voronezh State University, 394018 Voronezh, Russia
- Department of Genetics, Cytology and Bioengineering, Voronezh State University, 394018 Voronezh, Russia
- Laboratory of Metagenomics and Food Biotechnology, Voronezh State University of Engineering Technology, 394036 Voronezh, Russia
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24
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Xu S, Cui J, Cao H, Liang S, Ma T, Liu H, Wang J, Yang L, Xin W, Jia Y, Zou D, Zheng H. Identification of candidate genes for salinity tolerance in Japonica rice at the seedling stage based on genome-wide association study and linkage mapping. FRONTIERS IN PLANT SCIENCE 2023; 14:1184416. [PMID: 37235029 PMCID: PMC10206223 DOI: 10.3389/fpls.2023.1184416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 04/11/2023] [Indexed: 05/28/2023]
Abstract
Background Salinity tolerance plays a vital role in rice cultivation because the strength of salinity tolerance at the seedling stage directly affects seedling survival and final crop yield in saline soils. Here, we combined a genome-wide association study (GWAS) and linkage mapping to analyze the candidate intervals for salinity tolerance in Japonica rice at the seedling stage. Results We used the Na+ concentration in shoots (SNC), K+ concentration in shoots (SKC), Na+/K+ ratio in shoots (SNK), and seedling survival rate (SSR) as indices to assess the salinity tolerance at the seedling stage in rice. The GWAS identified the lead SNP (Chr12_20864157), associated with an SNK, which the linkage mapping detected as being in qSK12. A 195-kb region on chromosome 12 was selected based on the overlapping regions in the GWAS and the linkage mapping. Based on haplotype analysis, qRT-PCR, and sequence analysis, we obtained LOC_Os12g34450 as a candidate gene. Conclusion Based on these results, LOC_Os12g34450 was identified as a candidate gene contributing to salinity tolerance in Japonica rice. This study provides valuable guidance for plant breeders to improve the response of Japonica rice to salt stress.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Detang Zou
- *Correspondence: Detang Zou, ; Hongliang Zheng,
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25
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Song Q, Zhou M, Wang X, Brestic M, Liu Y, Yang X. RAP2.6 enhanced salt stress tolerance by reducing Na + accumulation and stabilizing the electron transport in Arabidopsis thaliana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 195:134-143. [PMID: 36634508 DOI: 10.1016/j.plaphy.2023.01.003] [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: 10/10/2022] [Revised: 12/09/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
The transcription factors of the AP2/ERF family are involved in plant growth and development and responses to biotic and abiotic stresses. Here, we found RAP2.6, a transcription factor which belongs to the ERF subfamily, was responsive to salt stress in Arabidopsis. Under salt stress conditions, rap2.6 mutant seedlings were the sensitivity deficiency to salt stress which was reflected in higher germination rate and longer root length compared to the wild type. Also, the expressions of salt-related gene including SOS1, SOS2, SOS3, NHX1, NHX3, NHX5 and HKT1 in rap2.6 mutant seedlings were lower than the wild type under salt stress. rap2.6 mutant adult lacked salt stress tolerance based on the results of the phenotype, survival rates and ion leakage. Compared to wild type, rap2.6 mutant adult accumulated more Na+ in leaves and roots while the salt-related gene expressions were lower. In addition, the photosynthetic electron transport and PSII energy distribution in rap2.6 mutant plant leaves had been more seriously affected under salt stress conditions compared to the wild type. In summary, this study identified essential roles of RAP2.6 in regulating salt stress tolerance in Arabidopsis.
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Affiliation(s)
- Qiping Song
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, 271018, China
| | - Min Zhou
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, 271018, China
| | - Xipan Wang
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, 271018, China
| | - Marian Brestic
- Department of Plant Physiology, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76, Nitra, Slovak Republic
| | - Yang Liu
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, 271018, China.
| | - Xinghong Yang
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, 271018, China.
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26
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Alamer KH, Attia H. UV-C seed priming improves tomato plant growth against salt stress. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2022.2153443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Khalid H. Alamer
- Biological Sciences Department, Faculty of Science and Arts, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Houneida Attia
- Department of Biology, Laboratory of Vegetable Productivity and Environmental Constraint LR18ES04, University Tunis El Manar II, Tunis, Tunisia
- Department of Biology, College of Sciences, Taif University, Taif, Saudi Arabia
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27
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Khan TA, Saleem M, Fariduddin Q. Recent advances and mechanistic insights on Melatonin-mediated salt stress signaling in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 188:97-107. [PMID: 35995025 DOI: 10.1016/j.plaphy.2022.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 08/06/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Salinity stress is one of the major abiotic constraints that limit plant growth and yield, which thereby is a serious concern to world food security. It adversely affects crop production by inducing hyperosmotic stress and ionic toxicity as well as secondary stresses such as oxidative stress, all of which disturb optimum physiology and metabolism. Nonetheless, various strategies have been employed to improve salt tolerance in crop plants, among which the application of Melatonin (Mel) could also be used as it has demonstrated promising results. The ongoing experimental evidence revealed that Mel is a pleiotropic signaling molecule, which besides being involved in various growth and developmental processes also mediates environmental stress responses. The current review systematically discusses and summarizes how Mel mediates the response of plants under salt stress and could optimize the balance between plant growth performances and stress responses. Specifically, it covers the latest advances of Mel in fine-tuning the signaling in plants. Furthermore, it highlights plant-built tolerance of salt stress by manifesting the biosynthesis of Mel, its cross talks with nitric oxide (NO), and Mel as a multifaceted antioxidant molecule.
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Affiliation(s)
- Tanveer Ahmad Khan
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Mohd Saleem
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Qazi Fariduddin
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
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Involvement of Auxin-Mediated CqEXPA50 Contributes to Salt Tolerance in Quinoa (Chenopodium quinoa) by Interaction with Auxin Pathway Genes. Int J Mol Sci 2022; 23:ijms23158480. [PMID: 35955612 PMCID: PMC9369402 DOI: 10.3390/ijms23158480] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 11/20/2022] Open
Abstract
Soil salinization is a global problem that limits crop yields and threatens agricultural development. Auxin-induced expansins contribute to plant salt tolerance through cell wall loosening. However, how auxins and expansins contribute to the adaptation of the halophyte quinoa (Chenopodium quinoa) to salt stress has not yet been reported. Here, auxin was found to contribute to the salt tolerance of quinoa by promoting the accumulation of photosynthetic pigments under salt stress, maintaining enzymatic and nonenzymatic antioxidant systems and scavenging excess reactive oxygen species (ROS). The Chenopodium quinoa expansin (Cqexpansin) family and the auxin pathway gene family (Chenopodium quinoa auxin response factor (CqARF), Chenopodium quinoa auxin/indoleacetic acid (CqAux/IAA), Chenopodium quinoa Gretchen Hagen 3 (CqGH3) and Chenopodium quinoa small auxin upregulated RNA (CqSAUR)) were identified from the quinoa genome. Combined expression profiling identified Chenopodium quinoa α-expansin 50 (CqEXPA50) as being involved in auxin-mediated salt tolerance. CqEXPA50 enhanced salt tolerance in quinoa seedlings was revealed by transient overexpression and physiological and biochemical analyses. Furthermore, the auxin pathway and salt stress-related genes regulated by CqEXPA50 were identified. The interaction of CqEXPA50 with these proteins was demonstrated by bimolecular fluorescence complementation (BIFC). The proteins that interact with CqEXPA50 were also found to improve salt tolerance. In conclusion, this study identified some genes potentially involved in the salt tolerance regulatory network of quinoa, providing new insights into salt tolerance.
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Li J, Li C, Tsuruta M, Matsushita N, Goto S, Shen Z, Tsugama D, Zhang S, Lian C. Physiological and transcriptional responses of the ectomycorrhizal fungus Cenococcum geophilum to salt stress. MYCORRHIZA 2022; 32:327-340. [PMID: 35546369 DOI: 10.1007/s00572-022-01078-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 04/25/2022] [Indexed: 06/15/2023]
Abstract
Ectomycorrhizal (ECM) fungi improve the host plant's tolerance to abiotic and biotic stresses. Cenococcum geophilum (Cg) is among the most common ECM fungi worldwide and often grows in saline environments. However, the physiological and molecular mechanisms of salt tolerance in this fungus are largely unknown. In the present study, 12 isolates collected from different ecogeographic regions were used to investigate the mechanism of salt tolerance of Cg. The isolates were classified into four groups (salt-sensitive, moderately salt-tolerant, salt-tolerant, and halophilic) based on their in vitro mycelial growth under 0, 50, 125, 250, and 500 mM NaCl concentrations. Hence, the Na, Ca, P, and K concentrations of mycelia and the pH of the culture solution were determined. Compared with salt-tolerant isolates, treatment with 250 mM NaCl significantly increased the sodium concentration and decreased the potassium concentration of salt-sensitive isolates. RNA-sequencing and qRT-PCR analysis were conducted to identify differentially expressed genes (DEGs) involved in transmembrane transport and oxidoreductase activity pathways. The hydrogen peroxide concentration and activities of peroxidase and superoxide dismutase in mycelia were determined, and the accumulation and scavenging of reactive oxygen species in the salt-sensitive isolates were more active than those in the salt-tolerant isolates. The results supply functional validations to RNA-seq and qRT-PCR analysis. This study provides novel insights into the salt-stress response of Cg isolates and provides a foundation for elucidation of the salt-tolerance mechanism of ECM fungi.
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Affiliation(s)
- Jiali Li
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo, 188-0002, Japan
| | - Chaofeng Li
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo, 188-0002, Japan.
| | - Momi Tsuruta
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo, 188-0002, Japan
- Department of Forest Molecular Genetics and Biotechnology, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki, 305-8687, Japan
| | - Norihisa Matsushita
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Susumu Goto
- The University of Tokyo Forests, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Zhenguo Shen
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Daisuke Tsugama
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo, 188-0002, Japan
| | - Shijie Zhang
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo, 188-0002, Japan
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Chunlan Lian
- Asian Research Center for Bioresource and Environmental Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo, 188-0002, Japan.
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The Effect of UV-C Irradiation on the Mechanical and Physiological Properties of Potato Tuber and Different Products. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12125907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Amongst the surface treatment technologies to emerge in the last few decades, UV-C radiation surface treatment is widely used in food process industries for the purpose of shelf life elongation, bacterial inactivation, and stimulation. However, the short wave application is highly dose-dependent and induces different properties of the product during exposure. Mechanical properties of the agricultural products and their derivatives represent the key indicator of acceptability by the end-user. This paper surveys the recent findings of the influence of UV-C on the stress response and physiological change concerning the mechanical and textural properties of miscellaneous agricultural products with a specific focus on a potato tuber. This paper also reviewed the hormetic effect of UV-C triggered at a different classification of doses studied so far on the amount of phenolic content, antioxidants, and other chemicals responsible for the stimulation process. The combined technologies with UV-C for product quality improvement are also highlighted. The review work draws the current challenges as well as future perspectives. Moreover, a way forward in the key areas of improvement of UV-C treatment technologies is suggested that can induce a favorable stress, enabling the product to achieve self-defense mechanisms against wound, impact, and mechanical damage.
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An X, Chen J, Liu T, Li W, Luo X, Zou L. Transcriptomic and Metabolic Profiling of Kenaf Stems under Salinity Stress. PLANTS 2022; 11:plants11111448. [PMID: 35684221 PMCID: PMC9182824 DOI: 10.3390/plants11111448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/04/2022] [Accepted: 05/26/2022] [Indexed: 11/29/2022]
Abstract
Kenaf (Hibiscus cannabinus L.) is an indispensable fiber crop that faces increasing salinity stress. In previous studies regarding the molecular mechanisms of how kenaf may respond to salt stress, no metabolic evidences have been reported. Meanwhile, studies regarding kenaf stems under adverse growth conditions have not been conducted. In the present study, multiple-layer evidences including physiological, transcriptomic, and metabolic data regarding how kenaf stems were affected by the salt stress are provided, wherein the stem growth, especially the lignification process, is retarded. Meanwhile, the transcriptomic data indicated genes involved in the photosynthesis are significantly repressed while the multiple flavonoid metabolism genes are enriched. As to the metabolic data, the content variation for the growth-promotion phytohormones such as IAA and the stress-responding ones including ABA are within or without expectations, implying these phytohormones played complicated roles when the kenaf stems encounter salt stress. However, the metabolite variations did not always agree with the expression levels of corresponding key pathway genes, possibly because the metabolite could be biosynthesized or catabolized in multiple pathways. Collectively, our data may enlighten, more specifically, downstream studies on kenaf responses against salinity and other adverse conditions.
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Affiliation(s)
- Xia An
- Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops, Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences, Hangzhou 311251, China; (T.L.); (W.L.); (X.L.); (L.Z.)
- Correspondence: ; Tel./Fax: +86–571-82724635
| | - Jie Chen
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
| | - Tingting Liu
- Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops, Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences, Hangzhou 311251, China; (T.L.); (W.L.); (X.L.); (L.Z.)
| | - Wenlue Li
- Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops, Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences, Hangzhou 311251, China; (T.L.); (W.L.); (X.L.); (L.Z.)
| | - Xiahong Luo
- Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops, Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences, Hangzhou 311251, China; (T.L.); (W.L.); (X.L.); (L.Z.)
| | - Lina Zou
- Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops, Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences, Hangzhou 311251, China; (T.L.); (W.L.); (X.L.); (L.Z.)
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Peng Y, Chen Y, Yuan Y, Liu B, Yu P, Song S, Yi Y, Teng Z, Yi Z, Zhang J, Meng S, Ye N, Duan M. Post‐anthesis saline‐alkali stress inhibits grain filling by promoting ethylene production and signal transduction. Food Energy Secur 2022. [DOI: 10.1002/fes3.384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Yaqiong Peng
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
- Hengyang Academy of Agricultural Sciences Hengyang China
| | - Yinke Chen
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
| | | | - Bohan Liu
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
| | - Peng Yu
- Bureau of Agriculture and Rural Affairs of Hengshan County Hengyang China
| | - Shihao Song
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
| | - Yake Yi
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
| | - Zhenning Teng
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
| | - Zhenxie Yi
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
- College of Agriculture Hunan Agricultural University Changsha China
| | - Jianhua Zhang
- Department of Biology Hong Kong Baptist University Kowloon China
- School of Life Sciences and State Key Laboratory of Agrobiotechnology The Chinese University of Hong Kong Shatin China
| | - Shuan Meng
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
- College of Agriculture Hunan Agricultural University Changsha China
| | - Nenghui Ye
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
- College of Agriculture Hunan Agricultural University Changsha China
| | - Meijuan Duan
- Hunan Provincial Key Laboratory of Rice Stress Biology Hunan Agricultural University Changsha China
- College of Agriculture Hunan Agricultural University Changsha China
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Effect of Postharvest UV-C Radiation on Nutritional Quality, Oxidation and Enzymatic Browning of Stored Mature Date. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12104947] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The effect of three doses of UV-C radiation (1, 3 and 6 kJ m−2) on conservation potential after harvest of the Deglet-Nour date for five months of storage at 10 °C was studied. Contents of water, total sugar, carotenoids, proteins, total polyphenols, flavonoids and condensed tannins, as well as browning index, enzyme activities of polyphenoloxidase and peroxidase and antioxidant capacity of samples were monitored during storage using standard methods. Doses 1 and 6 kJ m−2 significantly slowed the water loss of samples until the second month of storage, with 17.68% and 16.02% of loss compared to control (31.45%). In the second month of storage, a significant increase in carotenoids was also observed for doses 1 and 6 kJ m−2, with values of 4.17 and 4.02 mg kg−1 versus the control (3.45 mg kg−1), which resulted in deceleration in carotenoid degradation. A gradual decrease in total sugar content was noted for all samples; it was slower within irradiated ones at the second month, where the slowing down of sugar consumption was significantly favored in the samples irradiated at 1 and 6 kJ m−2, which was marked by decreases of 4.98% and 4.57% versus 8.96% in the control. Protein content of irradiated samples (3 and 6 kJ m−2) increased at the third month, giving 1.70 and 2.41 g kg−1 compared to 1.29 g kg−1 for the control. An important decrease in enzymatic activity of polyphenoloxidase was detected, in addition to a fluctuation in peroxidase during storage. The browning index was lower in the irradiated sample until the fourth month of storage, where the result was more significant. An increase in the content of condensed tannins was detected, especially during the two first months, and while the significant increase in the content of flavonoids was read at the last month, it was detected from the first month for polyphenols. This was more significant for the highest dose, were the content reached 0.537 g kg−1 versus 0.288 g kg−1 in control at the first month. A dose-dependent increase in antiradical activity was noted during the last months of storage, while the increase in iron-reducing power was detected at the first month. UV-C delayed installation of Deglet-Nour browning and enriched it with antioxidants.
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Effects of Azorhizobium caulinodans and Piriformospora indica Co-Inoculation on Growth and Fruit Quality of Tomato (Solanum lycopersicum L.) under Salt Stress. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8040302] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Salt stress is a worldwide environmental signal, reducing the growth and yield of crops. To improve crop tolerance to salt, several beneficial microbes are utilized. Here, nitrogen-fixing bacterium Azorhizobium caulinodans and root endophytic fungus Piriformospora indica were used to inoculate tomato (Solanum lycopersicum) under salt stress, and the effects of the co-inoculation were investigated. Results showed that A. caulinodans colonized in the intercellular space in stems and roots of tomato plants, while P. indica colonized in the root cortex. Two weeks following salt treatment, co-inoculated tomato plants grew substantially taller and had larger stem base diameters. Activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and reduced and oxidized ascorbate and glutathione (i.e., AsA, DHA, GSH, and GSSG, respectively) concentrations along with the ratios of AsA/(AsA + DHA) and GSH/(GSH + GSSG) increased in the leaves of co-inoculated plants under salt stress. The co-inoculation significantly increased soluble proteins and AsA in fruits; however, concentrations of soluble sugars and proanthocyanins did not show significant changes, compared with NaCl only treatment. Data suggest that A. caulinodans and P. indica co-inoculation boosted tomato growth and improved the quality of tomato fruits under salt stress. O-inoculation of A. caulinodans and P. indica might be employed to enhance tomato plant salt tolerance.
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Sun M, Liu X, Gao H, Zhang B, Peng F, Xiao Y. Phosphatidylcholine Enhances Homeostasis in Peach Seedling Cell Membrane and Increases Its Salt Stress Tolerance by Phosphatidic Acid. Int J Mol Sci 2022; 23:ijms23052585. [PMID: 35269728 PMCID: PMC8910501 DOI: 10.3390/ijms23052585] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/23/2022] [Accepted: 02/23/2022] [Indexed: 02/01/2023] Open
Abstract
Salt stress is a major adverse abiotic factor seriously affecting fruit tree growth and development. It ultimately lowers fruit quality and reduces yield. Phosphatidylcholine (PC) is an important cell membrane component that is critical for cell structure and membrane stability maintenance. In this study, we found that the addition of external PC sources significantly increased the tolerance of one-year-old peach trees, Prunus persica (L.) Batsch., to salt stress and attenuated their damage. The effect of exogenous application of 200 mg/L PC exerted the most significant positive effect. Its use caused seedling leaf stomatal opening, contributing to normal gas exchange. Moreover, beneficial effects were exerted also to the root system, which grew normally under salt stress. Meanwhile, phospholipase D activity in the cell was promoted. The production of phosphatidic acid (PA) was enhanced by increased decomposition of phospholipids; PA serves as a secondary messenger involved in plant biological process regulation and the reduction in the reactive oxygen species- and peroxide-induced damage caused by salt stress. The possible mechanism of action is via promoted plant osmotic regulation and tolerance to salt stress, reducing salt stress-induced injury to plants.
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Affiliation(s)
| | | | | | | | - Futian Peng
- Correspondence: (F.P.); (Y.X.); Tel.: +86-13563821651 (F.P.); +86-15163873786 (Y.X.)
| | - Yuansong Xiao
- Correspondence: (F.P.); (Y.X.); Tel.: +86-13563821651 (F.P.); +86-15163873786 (Y.X.)
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36
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Wang S, Lv X, Zhang J, Chen D, Chen S, Fan G, Ma C, Wang Y. Roles of E3 Ubiquitin Ligases in Plant Responses to Abiotic Stresses. Int J Mol Sci 2022; 23:ijms23042308. [PMID: 35216424 PMCID: PMC8878164 DOI: 10.3390/ijms23042308] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/13/2022] [Accepted: 02/16/2022] [Indexed: 01/09/2023] Open
Abstract
Plants are frequently exposed to a variety of abiotic stresses, such as those caused by salt, drought, cold, and heat. All of these stressors can induce changes in the proteoforms, which make up the proteome of an organism. Of the many different proteoforms, protein ubiquitination has attracted a lot of attention because it is widely involved in the process of protein degradation; thus regulates many plants molecular processes, such as hormone signal transduction, to resist external stresses. Ubiquitin ligases are crucial in substrate recognition during this ubiquitin modification process. In this review, the molecular mechanisms of plant responses to abiotic stresses from the perspective of ubiquitin ligases have been described. This information is critical for a better understanding of plant molecular responses to abiotic stresses.
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Affiliation(s)
- Shuang Wang
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China; (S.W.); (J.Z.)
| | - Xiaoyan Lv
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, China;
| | - Jialin Zhang
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China; (S.W.); (J.Z.)
| | - Daniel Chen
- Judy Genshaft Honors College and College of Arts and Sciences, University of South Florida, Tampa, FL 33620, USA;
| | - Sixue Chen
- Plant Molecular and Cellular Biology Program, Department of Biology, Genetics Institude, University of Florida, Gainesville, FL 32610, USA;
| | - Guoquan Fan
- Industrial Crops Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China;
| | - Chunquan Ma
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China; (S.W.); (J.Z.)
- Correspondence: (C.M.); (Y.W.)
| | - Yuguang Wang
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China; (S.W.); (J.Z.)
- Correspondence: (C.M.); (Y.W.)
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Martins ACQ, Mota APZ, Carvalho PASV, Passos MAS, Gimenes MA, Guimaraes PM, Brasileiro ACM. Transcriptome Responses of Wild Arachis to UV-C Exposure Reveal Genes Involved in General Plant Defense and Priming. PLANTS 2022; 11:plants11030408. [PMID: 35161389 PMCID: PMC8838480 DOI: 10.3390/plants11030408] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/26/2022] [Accepted: 01/28/2022] [Indexed: 11/18/2022]
Abstract
Stress priming is an important strategy for enhancing plant defense capacity to deal with environmental challenges and involves reprogrammed transcriptional responses. Although ultraviolet (UV) light exposure is a widely adopted approach to elicit stress memory and tolerance in plants, the molecular mechanisms underlying UV-mediated plant priming tolerance are not fully understood. Here, we investigated the changes in the global transcriptome profile of wild Arachis stenosperma leaves in response to UV-C exposure. A total of 5751 differentially expressed genes (DEGs) were identified, with the majority associated with cell signaling, protein dynamics, hormonal and transcriptional regulation, and secondary metabolic pathways. The expression profiles of DEGs known as indicators of priming state, such as transcription factors, transcriptional regulators and protein kinases, were further characterized. A meta-analysis, followed by qRT-PCR validation, identified 18 metaDEGs as being commonly regulated in response to UV and other primary stresses. These genes are involved in secondary metabolism, basal immunity, cell wall structure and integrity, and may constitute important players in the general defense processes and establishment of a priming state in A. stenosperma. Our findings contribute to a better understanding of transcriptional dynamics involved in wild Arachis adaptation to stressful conditions of their natural habitats.
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Affiliation(s)
- Andressa Cunha Quintana Martins
- Embrapa Genetic Resources and Biotechnology, Brasília 70770-917, DF, Brazil; (A.C.Q.M.); (A.P.Z.M.); (P.A.S.V.C.); (M.A.S.P.); (M.A.G.); (P.M.G.)
- National Institute of Science and Technology—INCT PlantStress Biotech—EMBRAPA, Brasília 70770-917, DF, Brazil
| | - Ana Paula Zotta Mota
- Embrapa Genetic Resources and Biotechnology, Brasília 70770-917, DF, Brazil; (A.C.Q.M.); (A.P.Z.M.); (P.A.S.V.C.); (M.A.S.P.); (M.A.G.); (P.M.G.)
- National Institute of Science and Technology—INCT PlantStress Biotech—EMBRAPA, Brasília 70770-917, DF, Brazil
- CIRAD, UMR AGAP, F-34398 Montpellier, France
| | - Paula Andrea Sampaio Vasconcelos Carvalho
- Embrapa Genetic Resources and Biotechnology, Brasília 70770-917, DF, Brazil; (A.C.Q.M.); (A.P.Z.M.); (P.A.S.V.C.); (M.A.S.P.); (M.A.G.); (P.M.G.)
- Instituto de Biociências, Department de Genética, Universidade Estadual Paulista (UNESP), Botucatu 70770-917, SP, Brazil
| | - Mario Alfredo Saraiva Passos
- Embrapa Genetic Resources and Biotechnology, Brasília 70770-917, DF, Brazil; (A.C.Q.M.); (A.P.Z.M.); (P.A.S.V.C.); (M.A.S.P.); (M.A.G.); (P.M.G.)
- National Institute of Science and Technology—INCT PlantStress Biotech—EMBRAPA, Brasília 70770-917, DF, Brazil
| | - Marcos Aparecido Gimenes
- Embrapa Genetic Resources and Biotechnology, Brasília 70770-917, DF, Brazil; (A.C.Q.M.); (A.P.Z.M.); (P.A.S.V.C.); (M.A.S.P.); (M.A.G.); (P.M.G.)
| | - Patricia Messenberg Guimaraes
- Embrapa Genetic Resources and Biotechnology, Brasília 70770-917, DF, Brazil; (A.C.Q.M.); (A.P.Z.M.); (P.A.S.V.C.); (M.A.S.P.); (M.A.G.); (P.M.G.)
- National Institute of Science and Technology—INCT PlantStress Biotech—EMBRAPA, Brasília 70770-917, DF, Brazil
| | - Ana Cristina Miranda Brasileiro
- Embrapa Genetic Resources and Biotechnology, Brasília 70770-917, DF, Brazil; (A.C.Q.M.); (A.P.Z.M.); (P.A.S.V.C.); (M.A.S.P.); (M.A.G.); (P.M.G.)
- National Institute of Science and Technology—INCT PlantStress Biotech—EMBRAPA, Brasília 70770-917, DF, Brazil
- Correspondence:
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Xing L, Zhu M, Luan M, Zhang M, Jin L, Liu Y, Zou J, Wang L, Xu M. miR169q and NUCLEAR FACTOR YA8 enhance salt tolerance by activating PEROXIDASE1 expression in response to ROS. PLANT PHYSIOLOGY 2022; 188:608-623. [PMID: 34718783 PMCID: PMC8774724 DOI: 10.1093/plphys/kiab498] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/28/2021] [Indexed: 05/10/2023]
Abstract
Salt stress significantly reduces the productivity of crop plants including maize (Zea mays). miRNAs are major regulators of plant growth and stress responses, but few studies have examined the potential impacts of miRNAs on salt stress responses in maize. Here, we show that ZmmiR169q is responsive to stress-induced ROS signals. After detecting that salt stress and exogenous H2O2 treatment reduced the accumulation of ZmmiR169q, stress assays with transgenic materials showed that depleting ZmmiR169q increased seedling salt tolerance whereas overexpressing ZmmiR169q decreased salt tolerance. Helping explain these observations, we found that ZmmiR169q repressed the transcript abundance of its target NUCLEAR FACTOR YA8 (ZmNF-YA8), and overexpression of ZmNF-YA8 in maize improved salt tolerance, specifically by transcriptionally activating the expression of the efficient antioxidant enzyme PEROXIDASE1. Our study reveals a direct functional link between salt stress and a miR169q-NF-YA8 regulatory module that plants use to manage ROS stress and strongly suggests that ZmNF-YA8 can be harnessed as a resource for developing salt-tolerant crop varieties.
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Affiliation(s)
- Lijuan Xing
- CAAS/Key Laboratory of Agricultural Genomics (Beijing), Ministry of Agriculture, Biotechnology Research Institute, 100081 Beijing, China
| | - Ming Zhu
- CAAS/Key Laboratory of Agricultural Genomics (Beijing), Ministry of Agriculture, Biotechnology Research Institute, 100081 Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, 100081 Beijing, China
| | - Mingda Luan
- CAAS/Key Laboratory of Agricultural Genomics (Beijing), Ministry of Agriculture, Biotechnology Research Institute, 100081 Beijing, China
| | - Min Zhang
- CAAS/Key Laboratory of Agricultural Genomics (Beijing), Ministry of Agriculture, Biotechnology Research Institute, 100081 Beijing, China
| | - Lian Jin
- CAAS/Key Laboratory of Agricultural Genomics (Beijing), Ministry of Agriculture, Biotechnology Research Institute, 100081 Beijing, China
| | - Yueping Liu
- College of Bioscience and Resources Environment, Beijing University of Agriculture, 102206 Beijing, China
| | - Junjie Zou
- CAAS/Key Laboratory of Agricultural Genomics (Beijing), Ministry of Agriculture, Biotechnology Research Institute, 100081 Beijing, China
| | - Lei Wang
- CAAS/Key Laboratory of Agricultural Genomics (Beijing), Ministry of Agriculture, Biotechnology Research Institute, 100081 Beijing, China
| | - Miaoyun Xu
- CAAS/Key Laboratory of Agricultural Genomics (Beijing), Ministry of Agriculture, Biotechnology Research Institute, 100081 Beijing, China
- Author for communication:
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Bera K, Dutta P, Sadhukhan S. Seed priming with non-ionizing physical agents: plant responses and underlying physiological mechanisms. PLANT CELL REPORTS 2022; 41:53-73. [PMID: 34654949 DOI: 10.1007/s00299-021-02798-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Seed priming has long been explored as an effective value-added potential technique that results in improved germination, reduced seedling emergence time, shortened crop duration, increased stress tolerance and eventually increased higher grain production. However, the wider applicability of water or chemical-based conventional methods of seed priming is often restricted considering its deleterious effects on post-treatment storability or agricultural pollution due to the persistence of chemicals in plant systems or in the environment. In this context, the utilization of physical methods of seed priming for enhancing plant productivity has created a new horizon in the domain of seed technology. Being eco-friendly and cost-effective approaches, priming with extra-terrestrial or physical agents such as ionizing radiation such as X-rays and gamma rays and non-ionizing radiation such as ultrasonic wave, magnetic field, microwaves, and infrared light offers many advantages along with ensuring enhanced production over conventional methods. Ultraviolet radiations, bridging between ionizing and non-ionizing radiation, are important electromagnetic waves that would also be an effective priming agent. Non-ionizing radiation has certain biological advantages over ionizing radiation since it does not generate charged ions while passing through a subject, but has enough energy to cause biological effects. Extensive research works to study the effects of various non-ionizing physical priming methods are required before their wider exploitation in agriculture. With this background, this review aims to highlight the current understanding of non-ionizing physical methods of seed priming and its applicability to combat present-day challenges to achieve agro-ecological resilience.
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Affiliation(s)
- Kuntal Bera
- Department of Seed Science and Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal, 736165, India
- Plant Molecular Biology Laboratory, Department of Botany, Raiganj University, Raiganj, Uttar Dinajpur, West Bengal, 733134, India
| | - Puspendu Dutta
- Department of Seed Science and Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal, 736165, India
| | - Sanjoy Sadhukhan
- Plant Molecular Biology Laboratory, Department of Botany, Raiganj University, Raiganj, Uttar Dinajpur, West Bengal, 733134, India.
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Hernandez-Aguilar C, Palma-Tenango M, Miguel-Chavez RS, Dominguez-Pacheco A, Soto-Hernández M, del Carmen Valderrama Bravo M, Ivanov R, Ordoñez-Miranda J. Induced changes of phenolic compounds in turmeric bread by UV-C radiation. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [PMCID: PMC8617559 DOI: 10.1007/s11694-021-01231-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Phenolic compounds of breads added with turmeric at different concentrations (A: 0, B: 1.25, C: 2.5, D: 5 and E:10%) and radiated by UV-C (I. 0, II. 15, III. 30 and IV. 60 s), have been evaluated by HPLC (High-performance liquid chromatography). It is shown that: (i) UV-C radiation modifies the content of phenolic compounds as a function of the percentage of addition of turmeric and the exposure time. There were significant differences (ρ ≤ 0.05) in the concentration of phenolic acids of the turmeric bread (TB): 0 s (sinapic, chlorogenic, protocatechuic), 15 s (chlorogenic, ferulic, protocatechuic, p-hydroxybenzoic, gallic), 30 s (chlorogenic and gallic) and 60 s (chlorogenic). (ii) In TB without radiation appeared, the sinapic, beta resorcylic, syringic and ferulic acids. In the radiation of bread at 15 s, the phenolic acids chlorogenic, ferulic, protocatechuic, p-hydroxybenzoic, gallic, had the highest concentration in the breads added with turmeric at 10% (0.02 μg mL−1), 10% (0.38 μg mL−1), 1.25, 2.5, 5% (0.39 μg mL−1), 10% (1.06 μg mL −1) and 0% (1.10 μg mL−1). (iii) There was a degradation of phenolic acids due to UV-C radiation at 30 and 60 s. At 15 s radiation, sinapic, beta resorcylic, syringic and ferulic acids were not detected in turmeric breads from breads added with turmeric at (1.25, 1.25, 0 and 0%). In radiation at 60 s, beta resorcylic, syringic and ferulic acids were not detected in any bread added with turmeric. In addition, measurements of proximate chemistry, color, sensory analysis, and number of fungal colonies were performed. It is important to mention that the sanitary quality is improved by both UV-C radiation and turmeric. However, the highest results in sanitary quality improvement were due to turmeric.
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41
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Li H, La S, Zhang X, Gao L, Tian Y. Salt-induced recruitment of specific root-associated bacterial consortium capable of enhancing plant adaptability to salt stress. THE ISME JOURNAL 2021; 15:2865-2882. [PMID: 33875820 PMCID: PMC8443564 DOI: 10.1038/s41396-021-00974-2] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 03/12/2021] [Accepted: 04/06/2021] [Indexed: 02/01/2023]
Abstract
Salinity is a major abiotic stress threatening crop production. Root-derived bacteria (RDB) are hypothesized to play a role in enhancing plant adaptability to various stresses. However, it is still unclear whether and how plants build up specific RDB when challenged by salinity. In this study, we measured the composition and variation in the rhizosphere and endophyte bacteria of salt-sensitive (SSs) and salt-resistant (SRs) plants under soil conditions with/without salinity. The salt-induced RDB (both rhizobiomes and endophytes) were isolated to examine their effects on the physiological responses of SSs and SRs to salinity challenge. Moreover, we examined whether functional redundancy exists among salt-induced RDB in enhancing plant adaptability to salt stress. We observed that although SSs and SRs recruited distinct RDB and relevant functions when challenged by salinity, salt-induced recruitment of specific RDB led to a consistent growth promotion in plants regardless of their salinity tolerance capacities. Plants employed a species-specific strategy to recruit beneficial soil bacteria in the rhizosphere rather than in the endosphere. Furthermore, we demonstrated that the consortium, but not individual members of the salt-induced RDB, provided enduring resistance against salt stress. This study confirms the critical role of salt-induced RDB in enhancing plant adaptability to salt stress.
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Affiliation(s)
- Hong Li
- grid.22935.3f0000 0004 0530 8290Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, P. R. China
| | - Shikai La
- grid.22935.3f0000 0004 0530 8290Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, P. R. China
| | - Xu Zhang
- grid.22935.3f0000 0004 0530 8290Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, P. R. China
| | - Lihong Gao
- grid.22935.3f0000 0004 0530 8290Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, P. R. China
| | - Yongqiang Tian
- grid.22935.3f0000 0004 0530 8290Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, P. R. China
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Quitadamo F, De Simone V, Beleggia R, Trono D. Chitosan-Induced Activation of the Antioxidant Defense System Counteracts the Adverse Effects of Salinity in Durum Wheat. PLANTS (BASEL, SWITZERLAND) 2021; 10:1365. [PMID: 34371568 PMCID: PMC8309458 DOI: 10.3390/plants10071365] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 06/28/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
The present study was carried out with the aim of (i) evaluating the effect of chitosan (CTS) on the growth of durum wheat under salinity and (ii) examining CTS-regulated mechanisms of salinity tolerance associated with the antioxidant defense system. To achieve these goals, durum wheat seedlings were treated with CTS at different molecular weight, low (L-CTS, 50-190 kDa), medium (M-CTS, 190-310 kDa) and high (H-CTS, 310-375 kDa). The results obtained show that exposure to 200 mM NaCl reduced the shoot and the root dried biomass by 38% and 59%, respectively. The growth impairment induced by salinity was strongly correlated with an increase in the superoxide anion production (5-fold), hydrogen peroxide content (2-fold) and malondialdehyde (MDA) content (4-fold). Seedlings responded to the oxidative stress triggered by salinity with an increase in the total phenolic content (TPC), total flavonoid content (TFC) and total antioxidant activity (TAA) by 67%, 51% and 32%, respectively. A salt-induced increase in the activity of the antioxidant enzymes superoxide dismutase and catalase (CAT) of 89% and 86%, respectively, was also observed. Treatment of salt-stressed seedlings with exogenous CTS significantly promoted seedling growth, with the strongest effects observed for L-CTS and M-CTS, which increased the shoot biomass of stressed seedlings by 32% and 44%, respectively, whereas the root dried biomass increased by 87% and 64%, respectively. L-CTS and M-CTS treatments also decreased the superoxide anion production (57% and 59%, respectively), the hydrogen peroxide content (35% and 38%, respectively) and the MDA content (48% and 56%, respectively) and increased the TPC (23% and 14%, respectively), the TFC (19% and 10%, respectively), the TAA (up to 10% and 7%, respectively) and the CAT activity (29% and 20%, respectively). Overall, our findings indicate that CTS exerts its protective role against the oxidative damages induced by salinity by enhancing the antioxidant defense system. L-CTS and M-CTS were the most effective in alleviating the adverse effect of NaCl, thus demonstrating that the CTS action is strictly related to its molecular weight.
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Affiliation(s)
| | | | | | - Daniela Trono
- Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria, Centro di Ricerca Cerealicoltura e, Colture Industriali, S.S. 673, Km 25,200, 71122 Foggia, Italy; (F.Q.); (V.D.S.); (R.B.)
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Sarri E, Termentzi A, Abraham EM, Papadopoulos GK, Baira E, Machera K, Loukas V, Komaitis F, Tani E. Salinity Stress Alters the Secondary Metabolic Profile of M. sativa, M. arborea and Their Hybrid (Alborea). Int J Mol Sci 2021; 22:ijms22094882. [PMID: 34063053 PMCID: PMC8124458 DOI: 10.3390/ijms22094882] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/26/2021] [Accepted: 05/02/2021] [Indexed: 01/11/2023] Open
Abstract
Increased soil salinity, and therefore accumulation of ions, is one of the major abiotic stresses of cultivated plants that negatively affect their growth and yield. Among Medicago species, only Medicago truncatula, which is a model plant, has been extensively studied, while research regarding salinity responses of two important forage legumes of Medicago sativa (M. sativa) and Medicago arborea (M. arborea) has been limited. In the present work, differences between M. arborea, M. sativa and their hybrid Alborea were studied regarding growth parameters and metabolomic responses. The entries were subjected to three different treatments: (1) no NaCl application (control plants), (2) continuous application of 100 mM NaCl (acute stress) and (3) gradual application of NaCl at concentrations of 50-75-150 mM by increasing NaCl concentration every 10 days. According to the results, M. arborea maintained steady growth in all three treatments and appeared to be more resistant to salinity. Furthermore, results clearly demonstrated that M. arborea presented a different metabolic profile from that of M. sativa and their hybrid. In general, it was found that under acute and gradual stress, M. sativa overexpressed saponins in the shoots while M. arborea overexpressed saponins in the roots, which is the part of the plant where most of the saponins are produced and overexpressed. Alborea did not perform well, as more metabolites were downregulated than upregulated when subjected to salinity stress. Finally, saponins and hydroxycinnamic acids were key players of increased salinity tolerance.
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Affiliation(s)
- Efi Sarri
- Department of Crop Science, Laboratory of Plant Breeding and Biometry, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (E.S.); (G.K.P.); (V.L.)
| | - Aikaterini Termentzi
- Laboratory of Pesticides’ Toxicology, Department of Pesticides Control and Phytopharmacy, Benaki Phytopathological Institute, 8 St. Delta Street, Kifissia, 14561 Athens, Greece; (A.T.); (E.B.); (K.M.)
| | - Eleni M. Abraham
- Faculty of Agriculture, Forestry and Natural Environment, School of Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - George K. Papadopoulos
- Department of Crop Science, Laboratory of Plant Breeding and Biometry, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (E.S.); (G.K.P.); (V.L.)
| | - Eirini Baira
- Laboratory of Pesticides’ Toxicology, Department of Pesticides Control and Phytopharmacy, Benaki Phytopathological Institute, 8 St. Delta Street, Kifissia, 14561 Athens, Greece; (A.T.); (E.B.); (K.M.)
| | - Kyriaki Machera
- Laboratory of Pesticides’ Toxicology, Department of Pesticides Control and Phytopharmacy, Benaki Phytopathological Institute, 8 St. Delta Street, Kifissia, 14561 Athens, Greece; (A.T.); (E.B.); (K.M.)
| | - Vassilis Loukas
- Department of Crop Science, Laboratory of Plant Breeding and Biometry, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (E.S.); (G.K.P.); (V.L.)
| | - Fotios Komaitis
- Department of Biotechnology, Laboratory of Molecular Biology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece;
| | - Eleni Tani
- Department of Crop Science, Laboratory of Plant Breeding and Biometry, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece; (E.S.); (G.K.P.); (V.L.)
- Correspondence: ; Tel.: +30-2105294625
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UV Lighting in Horticulture: A Sustainable Tool for Improving Production Quality and Food Safety. HORTICULTURAE 2021. [DOI: 10.3390/horticulturae7010009] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ultraviolet (UV) is a component of solar radiation that can be divided into three types defined by waveband: UV-A (315–400 nm), UV-B (280–315 nm), and UV-C (<280 nm). UV light can influence the physiological responses of plants. Wavelength, intensity, and exposure have a great impact on plant growth and quality. Interaction between plants and UV light is regulated by photoreceptors such as UV Resistance Locus 8 (UVR8) that enables acclimation to UV-B stress. Although UV in high doses is known to damage quality and production parameters, some studies show that UV in low doses may stimulate biomass accumulation and the synthesis of healthy compounds that mainly absorb UV. UV exposure is known to induce variations in plant architecture, important in ornamental crops, increasing their economic value. Abiotic stress induced by UV exposure increases resistance to insects and pathogens, and reduce postharvest quality depletion. This review highlights the role that UV may play in plant growth, quality, photomorphogenesis, and abiotic/biotic stress resistance.
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KİBAR B. Ultraviyole-C ve Ultrason Uygulamalarının Domates ve Hıyarda Fide Gelişimi Üzerine Etkilerinin Belirlenmesi. ULUSLARARASI TARIM VE YABAN HAYATI BILIMLERI DERGISI 2020. [DOI: 10.24180/ijaws.814388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Forges M, Bardin M, Urban L, Aarrouf J, Charles F. Impact of UV-C Radiation Applied during Plant Growth on Pre- and Postharvest Disease Sensitivity and Fruit Quality of Strawberry. PLANT DISEASE 2020; 104:3239-3247. [PMID: 33026955 DOI: 10.1094/pdis-02-20-0306-re] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Ultraviolet-C (UV-C) radiation is efficient in reducing the development of diseases in many species, including strawberry (Fragaria × ananassa). Several studies suggest that UV-C radiation is effective not only because of its disinfecting effect but also because it may stimulate plant defenses. In this study, the effect of preharvest UV-C radiation applied during strawberry cultivation on plant growth, fruit quality, and susceptibility to major fungal diseases such as gray mold, powdery mildew, and soft rot was evaluated. UV-C treatments had an impact on flowering initiation and fruit development. Flowering occurred earlier for UV-C-treated plants than for nontreated plants. At harvest, a larger amount of fruit was produced by treated plants despite their slight decrease in leaf area. UV-C treatment did not improve strawberry shelf life but did not alter the physical integrity of strawberry fruit. Natural infection of leaves to powdery mildew and of fruit to Rhizopus spp. strongly decreased in response to UV-C treatment.
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Affiliation(s)
- M Forges
- Unité Mixte de Recherche Qualisud, Laboratoire de Physiologie des fruits et Légumes, Université d'Avignon, 301 Rue Baruch de Spinoza, BP2139-84916, Avignon, France
| | - M Bardin
- INRAE, Pathologie Végétale, F-84140, Montfavet, France
| | - L Urban
- Unité Mixte de Recherche Qualisud, Laboratoire de Physiologie des fruits et Légumes, Université d'Avignon, 301 Rue Baruch de Spinoza, BP2139-84916, Avignon, France
| | - J Aarrouf
- Unité Mixte de Recherche Qualisud, Laboratoire de Physiologie des fruits et Légumes, Université d'Avignon, 301 Rue Baruch de Spinoza, BP2139-84916, Avignon, France
| | - F Charles
- Unité Mixte de Recherche Qualisud, Laboratoire de Physiologie des fruits et Légumes, Université d'Avignon, 301 Rue Baruch de Spinoza, BP2139-84916, Avignon, France
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Hu L, Zhou K, Liu Y, Yang S, Zhang J, Gong X, Ma F. Overexpression of MdMIPS1 enhances salt tolerance by improving osmosis, ion balance, and antioxidant activity in transgenic apple. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 301:110654. [PMID: 33218625 DOI: 10.1016/j.plantsci.2020.110654] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/15/2020] [Accepted: 08/30/2020] [Indexed: 06/11/2023]
Abstract
Myo-inositol and its derivatives play vital roles in plant stress tolerance. Myo-inositol-1-phosphate synthase (MIPS) is the rate-limiting enzyme of myo-inositol biosynthesis. However, the role of apple MIPS-mediated myo-inositol biosynthesis in stress tolerance remains elusive. In this study, we found that ectopic expression of MdMIPS1 from apple increased myo-inositol content and enhanced tolerance to salt and osmotic stresses in transgenic Arabidopsis lines. In transgenic apple lines over-expressing MdMIPS1, the increased myo-inositol levels could promote accumulation of other osmoprotectants such as glucose, sucrose, galactose, and fructose, to alleviate salinity-induced osmotic stress. Also, it was shown that overexpression of MdMIPS1 enhanced salinity tolerance by improving the antioxidant system to scavenge ROS, as well as Na+ and K+ homeostasis. Taken together, our results revealed a protective role of MdMIPS1-mediated myo-inositol biosynthesis in salt tolerance by improving osmotic balance, antioxidant defense system, and ion homeostasis in apple.
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Affiliation(s)
- Lingyu Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China; Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Key Laboratory of South Subtropical Fruit, Biology and Genetic Resource Utilization, Ministry of Agriculture, Guangdong Key Laboratory of Tropical and Subtropical Fruit Tree Research, Guangzhou, 510640, China
| | - Kun Zhou
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yuan Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Shulin Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jingyun Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaoqing Gong
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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Wang Z, Liang Y, Jin Y, Tong X, Wei X, Ma F, Ma B, Li M. Ectopic expression of apple hexose transporter MdHT2.2 reduced the salt tolerance of tomato seedlings with decreased ROS-scavenging ability. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 156:504-513. [PMID: 33049446 DOI: 10.1016/j.plaphy.2020.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/01/2020] [Indexed: 06/11/2023]
Abstract
Salt is one of the main stresses that limit plant growth, especially at the seedling stage, reducing crop production and severely impacting food security. However, the relationship between salt stress and sugar content regulated by sugar transporters remains unknown. Here, we investigated the salt tolerance of transgenic tomato seedlings ectopically expressing MdHT2.2, which is a fructose and glucose/H+ symporter located on the plasma membrane in apple. Although the contents of fructose, glucose and sucrose in the leaves of seedlings ectopically expressing MdHT2.2 obviously increased compared with those of WT seedlings, the transgenic seedlings were significantly less tolerance to salt stress. Under salt stress, the SlSOS1/2 and SlNHX1 genes were highly expressed, and the accumulation of Na+ was lower in the transgenic seedlings than in WT, however, ROS accumulated to a greater degree in the former, and the ROS-scavenging-related enzyme activities and AsA content were lower in the transgenic seedlings than WT. Taken together, these results indicated that the relatively low salt tolerance of the MdHT2.2 transgenic seedlings was related with the accumulation of ROS, which was caused by reduced ROS-scavenging ability. Our results offer proof that changes in sugar content caused by sugar transporters are related to salt tolerance, and provide new insight into the regulation of sugar content, quality improvement and stress tolerance.
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Affiliation(s)
- Zhengyang Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yonghui Liang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yuru Jin
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xiaolei Tong
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xiaoyu Wei
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Baiquan Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Mingjun Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Yu Z, Duan X, Luo L, Dai S, Ding Z, Xia G. How Plant Hormones Mediate Salt Stress Responses. TRENDS IN PLANT SCIENCE 2020; 25:1117-1130. [PMID: 32675014 DOI: 10.1016/j.tplants.2020.06.008] [Citation(s) in RCA: 302] [Impact Index Per Article: 75.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/11/2020] [Accepted: 06/17/2020] [Indexed: 05/20/2023]
Abstract
Salt stress is one of the major environmental stresses limiting plant growth and productivity. To adapt to salt stress, plants have developed various strategies to integrate exogenous salinity stress signals with endogenous developmental cues to optimize the balance of growth and stress responses. Accumulating evidence indicates that phytohormones, besides controlling plant growth and development under normal conditions, also mediate various environmental stresses, including salt stress, and thus regulate plant growth adaptation. In this review, we mainly discuss and summarize how plant hormones mediate salinity signals to regulate plant growth adaptation. We also highlight how, in response to salt stress, plants build a defense system by orchestrating the synthesis, signaling, and metabolism of various hormones via multiple crosstalks.
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Affiliation(s)
- Zipeng Yu
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, Shandong, China
| | - Xiangbo Duan
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, Shandong, China
| | - Lu Luo
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, Shandong, China
| | - Shaojun Dai
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China.
| | - Zhaojun Ding
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, Shandong, China.
| | - Guangmin Xia
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, Shandong, China.
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Hamani AKM, Wang G, Soothar MK, Shen X, Gao Y, Qiu R, Mehmood F. Responses of leaf gas exchange attributes, photosynthetic pigments and antioxidant enzymes in NaCl-stressed cotton (Gossypium hirsutum L.) seedlings to exogenous glycine betaine and salicylic acid. BMC PLANT BIOLOGY 2020; 20:434. [PMID: 32957907 PMCID: PMC7507723 DOI: 10.1186/s12870-020-02624-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 08/25/2020] [Indexed: 05/18/2023]
Abstract
BACKGROUND Application of exogenous glycine betaine (GB) and exogenous salicylic acid (SA) mitigates the adverse effects of salinity. Foliar spraying with exogenous GB or SA alleviates salt stress in plants by increasing leaf gas exchange and stimulating antioxidant enzyme activity. The effects of foliar application of exogenous GB and SA on the physiology and biochemistry of cotton seedlings subjected to salt stress remain unclear. RESULTS Results showed that salt stress of 150 mM NaCl significantly reduced leaf gas exchange and chlorophyll fluorescence and decreased photosynthetic pigment quantities and leaf relative water content. Foliar spray concentrations of 5.0 mM exogenous GB and 1.0 mM exogenous SA promoted gas exchange and fluorescence in cotton seedlings, increased quantities of chlorophyll pigments, and stimulated the antioxidant enzyme activity. The foliar spray also increased leaf relative water content and endogenous GB and SA content in comparison with the salt-stressed only control. Despite the salt-induced increase in antioxidant enzyme content, exogenous GB and SA in experimental concentrations significantly increased the activity of glutathione reductase, ascorbate peroxidase, superoxide dismutase, catalase and peroxidase, and decreased malondialdehyde content under salt stress. Across all experimental foliar spray GB and SA concentrations, the photochemical efficiency of photosystem II (FV/FM) reached a peak at a concentration of 5.0 mM GB. The net photosynthetic rate (Pn) and FV/FM were positively correlated with chlorophyll a and chlorophyll b content in response to foliar spraying of exogenous GB and SA under salt stress. CONCLUSIONS We concluded, from our results, that concentrations of 5.0 mM GB or 1.0 mM SA are optimal choices for mitigating NaCl-induced damage in cotton seedlings because they promote leaf photosynthesis, increase quantities of photosynthetic pigments, and stimulate antioxidant enzyme activity. Among, 5.0 mM GB and 1.0 mM SA, the best performance in enhancing endogenous GB and SA concentrations was obtained with the foliar application of 1.0 mM SA under salt stress.
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Affiliation(s)
- Abdoul Kader Mounkaila Hamani
- Farmland Irrigation Research Institute, Chinese Academy of Agriculture Sciences/Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs, Xinxiang, Henan, 453002, PR China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China
| | - Guangshuai Wang
- Farmland Irrigation Research Institute, Chinese Academy of Agriculture Sciences/Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs, Xinxiang, Henan, 453002, PR China
| | - Mukesh Kumar Soothar
- Farmland Irrigation Research Institute, Chinese Academy of Agriculture Sciences/Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs, Xinxiang, Henan, 453002, PR China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China
| | - Xiaojun Shen
- Farmland Irrigation Research Institute, Chinese Academy of Agriculture Sciences/Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs, Xinxiang, Henan, 453002, PR China
| | - Yang Gao
- Farmland Irrigation Research Institute, Chinese Academy of Agriculture Sciences/Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs, Xinxiang, Henan, 453002, PR China.
| | - Rangjian Qiu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Jiangsu Key Laboratory of Agricultural Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
| | - Faisal Mehmood
- Farmland Irrigation Research Institute, Chinese Academy of Agriculture Sciences/Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs, Xinxiang, Henan, 453002, PR China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China
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