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Mohagheghian B, Saeidi G, Arzani A. Phenolic compounds, antioxidant enzymes, and oxidative stress in barley (Hordeum vulgare L.) genotypes under field drought-stress conditions. BMC PLANT BIOLOGY 2025; 25:709. [PMID: 40426053 PMCID: PMC12108047 DOI: 10.1186/s12870-025-06750-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2025] [Accepted: 05/19/2025] [Indexed: 05/29/2025]
Abstract
Climate change has exacerbated drought, making water scarcity a significant constraint on crop production. This study aimed to evaluate drought stress responses of 21 barley cultivars and breeding lines, using various traits of leaf oxidative stress [DPPH radical scavenging, malondialdehyde (MDA), and hydrogen peroxide (H2O2)], antioxidants (enzymes and polyphenols), photosynthetic pigments and chlorophyll fluorescence (F) [carotenoid (Car), chlorophyll (Chl), Fm, F0, and Fv/Fm], relative water content (RWC), electrolyte leakage (EL), proline (Pro), protein content (PC), and grain yield. Field experiments were conducted under both normal and drought stress conditions. Significant effects of moisture conditions were observed for most of the traits, except for Chla/b, carotenoids, and EL. Syringic acid, gallic acid, chlorogenic acid, ferulic acid, ellagic acid, caffeic acid, vanillic acid, and p-coumaric acid were the prominent phenolic acids in barley genotypes. The predominant leaf flavonoids were luteolin, apigenin, and rutin. There was significant genetic variation among genotypes for all traits except Chla/b. Drought stress caused significant increases in DPPH, MDA, H2O2, total phenolic content, total flavonoid content, peroxidase, and Pro. While catalase, ascorbate peroxidase, Chla, Chlb, Tchl, Fv/Fm, F0, Fm, RWC, PC, and grain yield were significantly decreased due to water stress. These findings offer key insights into barley genotypes' drought stress response, aiding breeders in identifying key physiological and biochemical traits as markers for developing drought-tolerant cultivars.
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Affiliation(s)
- Behnaz Mohagheghian
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Ghodratollah Saeidi
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Ahmad Arzani
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran
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Sun P, Hao R, Fan F, Wang Y, Zhu F. Adaptation of High-Altitude Plants to Plateau Abiotic Stresses: A Case Study of the Qinghai-Tibet Plateau. Int J Mol Sci 2025; 26:2292. [PMID: 40076909 PMCID: PMC11900590 DOI: 10.3390/ijms26052292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2025] [Revised: 02/22/2025] [Accepted: 03/02/2025] [Indexed: 03/14/2025] Open
Abstract
High-altitude regions offer outstanding opportunities for investigating the impacts of combined abiotic stresses on plant physiological processes given their significant differences in terms of the ecological environment in high-elevation areas, low anthropogenic disturbance, and obvious distribution characteristics of plants along altitudinal gradients. Therefore, plants in high-altitude areas can be used as good targets for exploring plant adaptations to abiotic stress under extreme conditions. Plants that thrive in high-altitude environments such as the Qinghai-Tibet Plateau endure extreme abiotic stresses, including low temperatures, high UV radiation, and nutrient-poor soils. This study explores their adaptation mechanisms via phenotypic variation analyses and multiomics approaches. Key findings highlight traits such as increased photosynthetic efficiency, robust antioxidant systems, and morphological modifications tailored to high-altitude conditions. These insights advance our understanding of plant evolution in harsh environments and inform strategies to increase stress resistance in crops.
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Affiliation(s)
| | | | | | | | - Fuyuan Zhu
- Southern Modern Forestry Collaborative Innovation Center, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of State Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China; (P.S.); (R.H.); (F.F.); (Y.W.)
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Yu L, Tian Y, Wang X, Cao F, Wang H, Huang R, Guo C, Zhang H, Zhang J. Genome-wide identification, phylogeny, evolutionary expansion, and expression analyses of ABC gene family in Castanea mollissima under temperature stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2025; 219:109450. [PMID: 39731982 DOI: 10.1016/j.plaphy.2024.109450] [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: 10/04/2024] [Revised: 12/07/2024] [Accepted: 12/23/2024] [Indexed: 12/30/2024]
Abstract
The ATP-binding cassette (ABC) gene family comprises some of the most critical transporter proteins in plants, playing vital roles in maintaining cellular homeostasis and adapting to environmental changes. While ABC transporters have been extensively characterized in various plant species, their profile in C. mollissima remains less understood. In this study, 164 ABC genes were identified and characterized within the C. mollissima genome, and subsequently classified into eight subfamilies. Collinear analysis suggested that dispersed duplication was the primary mechanism driving the expansion of the CmABC gene family. The study also examined morphological and physiological changes in C. mollissima under temperature stress, highlighting significant decreases in photosynthetic indicators and SOD enzyme activity, while other indicators varied. Transcriptome analysis revealed distinct expression patterns of various CmABC genes under temperature stress, identifying CmABCG29c and CmABCB11e as key candidates for responding to temperature stress. This was based on their expression patterns, correlation with physiological indicators, and WGCNA analysis. The expression levels of CmABC genes measured in RT-qPCR experiments were consistent with those observed in RNA-seq analysis. This research provides a theoretical foundation for understanding the physiological and gene expression responses of C. mollissima to temperature stress.
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Affiliation(s)
- Liyang Yu
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China; Hebei Key Laboratory of Horicultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, China.
| | - Yujuan Tian
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China
| | - Xiangyu Wang
- The Office of Scientific Research, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China
| | - Fei Cao
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China; Hebei Key Laboratory of Horicultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, China
| | - Haifen Wang
- Research Center for Rural Vitalization, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China
| | - Ruimin Huang
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China; Hebei Key Laboratory of Horicultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, China
| | - Chunlei Guo
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China; Hebei Key Laboratory of Horicultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, China
| | - Haie Zhang
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China; Hebei Key Laboratory of Horicultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, China
| | - Jingzheng Zhang
- Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, Hebei, China; Hebei Key Laboratory of Horicultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, 066600, Hebei, China
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Wang Q, Lu X, Sun Y, Yu J, Cao Q, Xiao Y, Jiang N, Chen L, Zhou Y. Studies on the Physiological Response of Hemerocallis middendorffii to Two Types of Drought Stresses. Int J Mol Sci 2024; 25:13733. [PMID: 39769494 PMCID: PMC11677105 DOI: 10.3390/ijms252413733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2024] [Revised: 12/16/2024] [Accepted: 12/17/2024] [Indexed: 01/11/2025] Open
Abstract
Drought is a major environmental factor limiting plant growth and development. Hemerocallis middendorffii is a perennial herbaceous plant with high drought resistance, and high ornamental and application values. Understanding the mechanism of drought stress resistance in H. middendorffii is helpful for better utilization of plant resources and selection of excellent germplasms. In this study, the phenological and physiological traits of H. middendorffii were comprehensively analyzed under natural drought stress (ND) and PEG-simulated drought stress (PD), and the resistance of H. middendorffii to different levels of drought stress was evaluated. ND was treated using a natural water loss method. PD was treated under drought stress by using PEG-6000. H. middendorffii were able to grow within 15 d of ND and 4 d of 20% PD. Beyond this drought time, H. middendorffii will wilt and lose their ornamental value. Further study showed that H. middendorffii protect themselves from damage and enhance drought resistance mainly by increasing the content of osmoregulatory substances, enhancing the activity of antioxidant enzymes, and inhibiting photosynthesis. Malondialdehyde (MDA) content accumulated rapidly at 15 d of ND and 7 d of PD. Antioxidant enzyme activities peaked at 15 d of ND and 4 d of PD. Photosynthetic parameters decreased at 15 d of ND and 4 d of 20% PD, respectively. Moreover, we identified that the HmWRKY9 gene was up-regulated for expression in the leaves after ND and PD. HmWRKY9 may be involved in regulating the response of H. middendorffii to drought stress.
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Affiliation(s)
| | | | | | | | | | | | | | - Lifei Chen
- College of Horticulture, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China; (Q.W.); (X.L.); (Y.S.); (J.Y.); (Q.C.); (Y.X.); (N.J.)
| | - Yunwei Zhou
- College of Horticulture, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China; (Q.W.); (X.L.); (Y.S.); (J.Y.); (Q.C.); (Y.X.); (N.J.)
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Yang Y, Wang C, Liang Y, Xiao D, Fu T, Yang X, Liu J, Wang S, Wang Y. PagTPS1 and PagTPS10, the trehalose-6-phosphate synthase genes, increase trehalose content and enhance drought tolerance. Int J Biol Macromol 2024; 279:135518. [PMID: 39260634 DOI: 10.1016/j.ijbiomac.2024.135518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/25/2024] [Accepted: 09/08/2024] [Indexed: 09/13/2024]
Abstract
Trehalose-6-phosphate synthase (TPS) genes play an active role in the trehalose metabolism pathway that regulates the responses of plants to diverse stresses. However, the functional identification, comparison, and conservatism of TPS genes in the responses of woody plants, especially poplars, to drought stress remain unclear. Here, the trehalose content of 84K (Populus alba × P. glandulosa) poplars was down-regulated and PagTPS and PagTPP genes had diverse response patterns under drought stress. Physicochemical properties, expression patterns, and functions of PagTPS1 and PagTPS10, two class I members of TPS gene family, were identified and compared. Transgenic 84K poplars overexpressing PagTPS1 and PagTPS10 had significantly higher trehalose content with approximately 138% and 123%, respectively, and stronger drought tolerance compared to WT. PagTPS1 and PagTPS10 promoted the expression of TPPA genes and drought-responsive genes. Accordingly, poplars inhibiting PagTPS1 and PagTPS10 expression via RNA interference had lower trehalose content and drought tolerance. Simultaneously, overexpressing PagTPS1 and PagTPS10 improved the trehalose content and drought tolerance of Arabidopsis. Overall, we proposed a model of the effects of PagTPS1 and PagTPS10 as conservative regulators on the responses of plants to drought, which would provide new insights into the functional explorations of TPS genes in plants.
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Affiliation(s)
- Yuzhang Yang
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Chun Wang
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Yanting Liang
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Dandan Xiao
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Tiantian Fu
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Xiaoqian Yang
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Jiahao Liu
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Shuli Wang
- Puyang Academy of Agriculture and Forestry Sciences, China
| | - Yanwei Wang
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
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Li X, Wei L, Zhao H, Wang Y, Sun F, Wu M. Ecophysiological, transcriptomic and metabolomic analyses shed light on the response mechanism of Bruguiera gymnorhiza to upwelling stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109074. [PMID: 39213943 DOI: 10.1016/j.plaphy.2024.109074] [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: 02/22/2024] [Revised: 08/07/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Mangroves, due to their unique habitats, endure dual stressors from land to ocean and ocean to land directions. While extensive researches have been conducted on land-ocean stressors, studies on ocean-land stressors like upwelling are considerably scarce. In this study, ecophysiological, transcriptome, and metabolome analyses were conducted to determine the responses of mangrove plant (Bruguiera gymnorhiza, B. gymnorhiza) to upwelling stress. The results suggested that upwelling stress in B. gymnorhiza induces oxidative stress and membrane damage, which are mitigated by the synergistic actions of antioxidant enzymes and osmoprotectants. Transcriptomic and metabolomic analyses revealed that upregulated genes related to oxidation-reduction and carbohydrate metabolism, along with accumulated metabolites such as amino acids, lipids, phenols, and organic acids, contribute to enhancing antioxidant capacity and maintaining osmotic balance. Further analysis identified key KEGG pathways involved in the response to upwelling stress, including amino acid metabolism, carbohydrate and energy metabolism, flavonoid biosynthesis, and plant hormone signal transduction. These findings provide vital information into the multi-level response mechanisms of mangrove plants to upwelling stress.
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Affiliation(s)
- Xiaomei Li
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Guangdong Academy of Forestry, Guangzhou, 510520, China; Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangzhou, 510520, China; Guangdong Coastal Shelterbelt Forest Ecosystem National Observation and Research Station, Guangzhou, 510520, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Long Wei
- Guangdong Academy of Forestry, Guangzhou, 510520, China; Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangzhou, 510520, China; Guangdong Coastal Shelterbelt Forest Ecosystem National Observation and Research Station, Guangzhou, 510520, China
| | - Hui Zhao
- College of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Yutu Wang
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Fulin Sun
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Meilin Wu
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
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Hao X, Lv J, Zhao Z, Tong Y, Deng M, Wen J. Compositional variances in petal cuticular wax of eight rose species and their impacts on vase life under water-loss stress. FRONTIERS IN PLANT SCIENCE 2024; 15:1412617. [PMID: 39301155 PMCID: PMC11410625 DOI: 10.3389/fpls.2024.1412617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 07/30/2024] [Indexed: 09/22/2024]
Abstract
Cuticular wax is the first barrier between plants and the environment. Here, the densities of cuticular wax crystals on the petals of eight rose cultivars were determined to be sparse; the crystals were mostly granular and only a few rod-shaped crystals were observed in 'Sweet'. The total contents and chemical compositions of waxes were significantly different among the rose varieties. The waxes were mainly composed of n-alkanes, iso-alananes and alkenes. Under water-loss stress, 'Diana' and 'Carola' cultivars, having high petal wax contents, had low water permeability levels, long vase lives, high relative water contents and low relative conductivity levels. However, the low wax contents of the 'Jubilance' and 'Candy Avalanche' cultivars resulted in high water permeability levels and short vase lives. Pearson correlation analyses showed the total wax content in petal epidermis was positively correlated with vase life. The data provide novel insights into the compositional variances in the cuticular waxes of rose petals and their impacts on cut rose vase lives.
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Affiliation(s)
- Xuan Hao
- Faculty of Architecture and City Planning, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Junheng Lv
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming, China
| | - Zixian Zhao
- Faculty of Architecture and City Planning, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yuxin Tong
- Faculty of Architecture and City Planning, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Minghua Deng
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming, China
| | - Jinfen Wen
- Faculty of Architecture and City Planning, Kunming University of Science and Technology, Kunming, Yunnan, China
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Song R, Shi P, Xiang L, He Y, Dong Y, Miao Y, Qi J. Evaluation of barley genotypes for drought adaptability: based on stress indices and comprehensive evaluation as criteria. FRONTIERS IN PLANT SCIENCE 2024; 15:1436872. [PMID: 39253570 PMCID: PMC11381406 DOI: 10.3389/fpls.2024.1436872] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 08/08/2024] [Indexed: 09/11/2024]
Abstract
The prevalence of drought events worldwide emphasizes the importance of screening and cultivating drought-adapted crops. In this study, 206 germplasm resources were used as materials, dry weight as target trait, and two genotyping methods as criteria to evaluate drought adaptability at the seedling establishment stage. The results showed a significant decrease in average dry weight of the tested germplasm resources (from 746.90 mg to 285.40 mg) and rich variation in the responses of dry weight among each genotype to drought (CV=61.14%). In traditional evaluation method, drought resistance coefficient (DC), geometric mean productivity index (GMP), mean productivity index (MP), stress susceptibility index (SSI), stress tolerance index (STI), and tolerance index (TOL) also exhibited diversity in tested genotypes (CV>30%). However, these indices showed varying degrees of explanation for dry weight under stress and non-stress environments and failed to differentiate drought adaptability among genotypes clearly. In new evaluation method, four stress indices were developed to quantify barley seedling production and stability capacities. Compared to traditional stress indices, the stress production index (SI) explained dry weight more comprehensively under stress conditions (R2 = 0.98), while the ideal production index (II) explained dry weight better under non-stress conditions (R2 = 0.89). Furthermore, the potential index (PI) and elasticity index (EI) eliminated disparities in traditional stress indices and comprehensively clarified the contribution of elasticity and potential to production capacity under drought stress. Ultimately, through grading evaluation and cluster analysis, the tested germplasm resources were effectively categorized, and 11 genotypes were identified as suitable for cultivation in arid areas. Overall, the comprehensive evaluation method based on the newly developed stress indices surpasses the traditional method in screening drought adaptability of crops and serves as a vital tool for identifying high-stability and high-production capacities genotypes in various environments, which is expected to provide practical guidance for barley planting and breeding in arid areas.
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Affiliation(s)
- Ruijiao Song
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Group-College of Agriculture, Shihezi University, Shihezi, China
| | - Peichun Shi
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Group-College of Agriculture, Shihezi University, Shihezi, China
| | - Li Xiang
- Qitai Triticeae Crops Experimental Station, Xinjiang Academy of Agricultural Sciences, Qitai, China
| | - Yu He
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Group-College of Agriculture, Shihezi University, Shihezi, China
| | - Yusheng Dong
- Qitai Triticeae Crops Experimental Station, Xinjiang Academy of Agricultural Sciences, Qitai, China
| | - Yu Miao
- Qitai Triticeae Crops Experimental Station, Xinjiang Academy of Agricultural Sciences, Qitai, China
| | - Juncang Qi
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Group-College of Agriculture, Shihezi University, Shihezi, China
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Wang W, Liu Y, Kang Y, Liu W, Li S, Wang Z, Xia X, Chen X, Qian L, Xiong X, Liu Z, Guan C, He X. Genome-wide characterization of LEA gene family reveals a positive role of BnaA.LEA6.a in freezing tolerance in rapeseed (Brassica napus L.). BMC PLANT BIOLOGY 2024; 24:433. [PMID: 38773359 PMCID: PMC11106994 DOI: 10.1186/s12870-024-05111-7] [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: 01/28/2024] [Accepted: 05/06/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND Freezing stress is one of the major abiotic stresses that causes extensive damage to plants. LEA (Late embryogenesis abundant) proteins play a crucial role in plant growth, development, and abiotic stress. However, there is limited research on the function of LEA genes in low-temperature stress in Brassica napus (rapeseed). RESULTS Total 306 potential LEA genes were identified in B. rapa (79), B. oleracea (79) and B. napus (148) and divided into eight subgroups. LEA genes of the same subgroup had similar gene structures and predicted subcellular locations. Cis-regulatory elements analysis showed that the promoters of BnaLEA genes rich in cis-regulatory elements related to various abiotic stresses. Additionally, RNA-seq and real-time PCR results indicated that the majority of BnaLEA family members were highly expressed in senescent tissues of rapeseed, especially during late stages of seed maturation, and most BnaLEA genes can be induced by salt and osmotic stress. Interestingly, the BnaA.LEA6.a and BnaC.LEA6.a genes were highly expressed across different vegetative and reproductive organs during different development stages, and showed strong responses to salt, osmotic, and cold stress, particularly freezing stress. Further analysis showed that overexpression of BnaA.LEA6.a increased the freezing tolerance in rapeseed, as evidenced by lower relative electrical leakage and higher survival rates compared to the wild-type (WT) under freezing treatment. CONCLUSION This study is of great significance for understanding the functions of BnaLEA genes in freezing tolerance in rapeseed and offers an ideal candidate gene (BnaA.LEA6.a) for molecular breeding of freezing-tolerant rapeseed cultivars.
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Affiliation(s)
- Weiping Wang
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Yan Liu
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Yu Kang
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Wei Liu
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Shun Li
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Zhonghua Wang
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Xiaoyan Xia
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Xiaoyu Chen
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Lunwen Qian
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Xinghua Xiong
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Zhongsong Liu
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Chunyun Guan
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Xin He
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, China.
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Guo J, Bao G, Zhang X, Pan X, Zhao H, Fan C, Li G. Artemisinin and Ambrosia trifida extract aggravate the effects of short freeze-thaw stress in winter rye ( Secale cereale) seedlings. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:497-506. [PMID: 37105725 DOI: 10.1071/fp22271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/11/2023] [Indexed: 06/07/2023]
Abstract
The freeze-thaw and allelopathy from alien giant ragweed (Ambrosia trifida L.) and artemisinin have led to a serious stress to plants, influencing the agricultural quality and crop yield in north-east China. Yet, little is known how allelopathy affect plants under the freeze-thaw process. In this study, the characteristics in winter rye (Secale cereale L.) seedlings were investigated by laboratory simulation. The results showed that during the freezing process, application of artemisinin and A. trifida extract significantly increased the soluble protein content and accelerated lipid peroxidation, while they significantly inhibited antioxidant enzymes, photosynthesis and respiration (P <0.05). During the thawing process, the freezing pressure decreased, and activities of antioxidant enzymes were significantly improved to mitigate artemisinin and A. trifida extract induced stress (P <0.05). In addition, the sensitivity of the investigated metabolic processes in winter rye seedlings were highest to artemisinin and A. trifida extract in the freezing process. This study suggested that the stress response induced by artemisinin and A. trifida extract on winter rye seedlings in the freezing process was greater than that in the thawing process.
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Affiliation(s)
- Jiancai Guo
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education (Jilin University); Jilin Provincial Key Laboratory of Water Resources and Environment; College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Guozhang Bao
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education (Jilin University); Jilin Provincial Key Laboratory of Water Resources and Environment; College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Xin Zhang
- College of Biological and Agricultural Engineering, Jilin University, Changchun 130012, China
| | - Xinyu Pan
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education (Jilin University); Jilin Provincial Key Laboratory of Water Resources and Environment; College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Hongwei Zhao
- The Administration of Jingyu Water Conservation, Jingyu 135200, China
| | - Cunxin Fan
- The Administration of Jingyu Water Conservation, Jingyu 135200, China
| | - Guomei Li
- Yushu Forestry and Grassland Comprehensive Service Center, Yushu 815000, China
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Radziemska M, Gusiatin MZ, Cydzik-Kwiatkowska A, Blazejczyk A, Holatko J, Brtnicky M. Does biochar in combination with compost effectively promote phytostabilization of heavy metals in soil under different temperature regimes? THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 882:163634. [PMID: 37088391 DOI: 10.1016/j.scitotenv.2023.163634] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/15/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
The article presents the effect of a combined amendment, i.e., biochar+compost (BC), on the process of Cd, Cu, Ni, Pb and Zn immobilization in soil cultivated with L. perenne under freezing and thawing conditions (FTC). In particular, the speciation analysis of the examined elements in phytostabilized soils based on their response using the sequential extraction, and the variability of the soil microbiome using 16S rRNA gene amplicon sequencing were systematically assessed. Metal stability in soils was evaluated by the reduced distribution index (Ir). Plants were grown in pots for 52 days under greenhouse conditions. After termination, phytostabilization was continued in a temperature chamber for 64 days to provide FTC. As a result, it was noted that biomass yield of L. perenne was promoted by BC (39 % higher than in the control pots) and reduced by FTC (45 % lower than in the BC-enriched soil not exposed to FTC). An efficacious level of phytostabilization, i.e., higher content of heavy metals in plant roots, was found in the BC-enriched soil, regardless of the changes in soil temperature conditions. BC improved soil pH before applying FTC more than after applying FTC. BC had the greatest impact on increasing Cu stability by redistributing it from the F1 and F2 fractions to the F3 and F4 fractions. For most metals, phytostabilization under FTC resulted in an increase in the proportion of the F1 fraction and a decrease in its stability. Only for Pb and Zn, FTC had greater impact on their stability than BC addition. In all soil samples, the core genera with about 2-3 % abundances were Sphingomonas sp. and Mycobacterium sp. FTC favored the growth of Bacteroidetes and Proteobacteria in soil. Microbial taxa that coped well with FTC but only in the absence of BC were Rhodococcus, Alkanindiges sp., Flavobacterium sp., Williamsia sp. Thermomonas sp.
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Affiliation(s)
- Maja Radziemska
- Institute of Environmental Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland.
| | - Mariusz Z Gusiatin
- Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Słoneczna St. 45G, 10-719 Olsztyn, Poland
| | - Agnieszka Cydzik-Kwiatkowska
- Institute of Environmental Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Aurelia Blazejczyk
- Institute of Civil Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Jiri Holatko
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic; Agrovyzkum Rapotin, Ltd., Vyzkumniku 267, 788 13 Rapotin, Czech Republic
| | - Martin Brtnicky
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic
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Jiang G, Wang S, Xie J, Tan P, Han L. Discontinuous low temperature stress and plant growth regulators during the germination period promote roots growth in alfalfa (Medicago sativa L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 197:107624. [PMID: 36948023 DOI: 10.1016/j.plaphy.2023.03.001] [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: 10/29/2022] [Revised: 02/15/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
In high-cold regions, alfalfa is susceptible to cold damage during the seed germination. The effects of discontinuous low temperature stress and plant growth regulators (PGRs) on alfalfa were studied in response to the high day/night temperature differentials in the area. The experiments included seed germination, seedling cold tolerance and plant recovery. Variable temperatures (VT) of 0 °C/15 °C, 5 °C/20 °C and 10 °C/25 °C were set and seeds were soaked with alginate oligosaccharides (AOS), brassinolide (BR) and diethyl aminoethyl hexanoate (DA-6) during the germination period. Parameters such as seed germination and mean germination time (MGT), phenylalanine ammonia-lyase (PAL) activity and oligomeric proanthocyanidins (OPC) content of early seedlings, dry matter accumulation and root crown of the restored plants were analysed. The results showed that low variable-temperature (LVT) stress prolonged the MGT but had little inhibitory effect on germination percentage. Early seedlings adapted to LVT stress by regulating their own water and OPC content, PAL activity and other parameters. LVT induced early alfalfa seedlings to increase their underground biomass by shortening root length and increasing root diameter, and those that had accumulated more underground biomass had faster growth rates and higher total biomass when the ambient temperature rose. AOS also promoted an increase in root crown diameter and root dry weight. This research proved that LVT stress and AOS during the germination process can lead to better growth of alfalfa in high cold regions.
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Affiliation(s)
- Gaoqian Jiang
- Institute of Genetics and Developmental Biology Center for Agricultural Resources Research, Chinese Academy of Sciences / Hebei Key Laboratory of Soil Ecology / Key Laboratory of Agricultural Water Resources, Chinese Academy of Sciences, Shijiazhuang, 050022, China; University of Chinese Academy of Sciences, Beijing, China
| | - Shichao Wang
- Institute of Genetics and Developmental Biology Center for Agricultural Resources Research, Chinese Academy of Sciences / Hebei Key Laboratory of Soil Ecology / Key Laboratory of Agricultural Water Resources, Chinese Academy of Sciences, Shijiazhuang, 050022, China
| | - Jin Xie
- Institute of Genetics and Developmental Biology Center for Agricultural Resources Research, Chinese Academy of Sciences / Hebei Key Laboratory of Soil Ecology / Key Laboratory of Agricultural Water Resources, Chinese Academy of Sciences, Shijiazhuang, 050022, China
| | - Pan Tan
- Institute of Genetics and Developmental Biology Center for Agricultural Resources Research, Chinese Academy of Sciences / Hebei Key Laboratory of Soil Ecology / Key Laboratory of Agricultural Water Resources, Chinese Academy of Sciences, Shijiazhuang, 050022, China; University of Chinese Academy of Sciences, Beijing, China
| | - Lipu Han
- Institute of Genetics and Developmental Biology Center for Agricultural Resources Research, Chinese Academy of Sciences / Hebei Key Laboratory of Soil Ecology / Key Laboratory of Agricultural Water Resources, Chinese Academy of Sciences, Shijiazhuang, 050022, China; University of Chinese Academy of Sciences, Beijing, China.
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Guo J, Bao G, Yang Y, Xi J, Zhang X, Pan X, Zhao H, Li G, Fan C. Impact of repeated freeze-thaw cycles environment on the allelopathic effect to Secale cereale L. seedlings. CHEMOSPHERE 2022; 308:136476. [PMID: 36122740 DOI: 10.1016/j.chemosphere.2022.136476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/23/2022] [Accepted: 09/13/2022] [Indexed: 06/15/2023]
Abstract
Allelopathy, as environmental stress, plays a prominent role in stress ecotoxicity, and global warming directly increases freeze-thaw cycles (FTCs) frequency in the winter. Yet, the effect between FTCs environment and allelopathy stress is rarely known, and the interaction of allelopathy stresses lacks consideration. Here, we addressed interactions between artemisinin stress (AS) and A. trifida extract stress (AES) under Non-FTCs and FTCs environments. The results found that AS and AES had an antagonistic relation under Non-FTCs environment, while a strong synergism and cooperation under FTCs environment affect the growth and physiology in S. cereale seedlings. Besides, AS and AES under FTCs environment had more inhibition on the growth of roots and shoots, chlorophylls, photosynthetic parameters, and relative water content; while more promotion on malondialdehyde, soluble sugar, and soluble protein. Moreover, the antioxidant enzyme activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and ascorbate peroxidase (APX) were increased by AS and AES, showing a good resistance of S. cereale seedlings to allelopathy stress, but FTCs environment significantly weakened this resistance. Thus, the allelopathic effect of AS and AES on S. cereale seedlings was significantly emphasized by FTCs environment.
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Affiliation(s)
- Jiancai Guo
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education (Jilin University); Jilin Provincial Key Laboratory of Water Resources and Environment; College of New Energy and Environment, Jilin University, Changchun, 130012, China
| | - Guozhang Bao
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education (Jilin University); Jilin Provincial Key Laboratory of Water Resources and Environment; College of New Energy and Environment, Jilin University, Changchun, 130012, China.
| | - Yinan Yang
- College of Horticulture, Jilin Agricultural University, Changchun, 130118, China
| | - Jinghui Xi
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Xin Zhang
- College of Biological and Agricultural Engineering, Jilin University, Changchun, 130012, China
| | - Xinyu Pan
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education (Jilin University); Jilin Provincial Key Laboratory of Water Resources and Environment; College of New Energy and Environment, Jilin University, Changchun, 130012, China
| | - Hongwei Zhao
- The Administration of Jingyu Water Conservation, Jilin province, Jingyu, 135200, China
| | - Guomei Li
- Yushu Forestry and Grassland Comprehensive Service Center, Yushu Tibetan Autonomous Prefecture, Yushu, 815000, China
| | - Cunxin Fan
- The Administration of Jingyu Water Conservation, Jilin province, Jingyu, 135200, China
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Transcriptome Profiling of Stem-Differentiating Xylem in Response to Abiotic Stresses Based on Hybrid Sequencing in Cunninghamia lanceolata. Int J Mol Sci 2022; 23:ijms232213986. [PMID: 36430463 PMCID: PMC9695776 DOI: 10.3390/ijms232213986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/22/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
Cunninghamia lanceolata (C. lanceolata) belongs to Gymnospermae, which are fast-growing and have desirable wood properties. However, C. lanceolata's stress resistance is little understood. To unravel the physiological and molecular regulation mechanisms under environmental stresses in the typical gymnosperm species of C. lanceolata, three-year-old plants were exposed to simulated drought stress (polyethylene glycol 8000), salicylic acid, and cold treatment at 4 °C for 8 h, 32 h, and 56 h, respectively. Regarding the physiological traits, we observed a decreased protein content and increased peroxidase upon salicylic acid and polyethylene glycol treatment. Superoxide dismutase activity either decreased or increased at first and then returned to normal under the stresses. Regarding the molecular regulation, we used both nanopore direct RNA sequencing and short-read sequencing to reveal a total of 5646 differentially expressed genes in response to different stresses, of which most had functions in lignin catabolism, pectin catabolism, and xylan metabolism, indicating that the development of stem-differentiating xylem was affected upon stress treatment. Finally, we identified a total of 51 AP2/ERF, 29 NAC, and 37 WRKY transcript factors in C. lanceolata. The expression of most of the NAC TFs increased under cold stress, and the expression of most of the WRKY TFs increased under cold and SA stress. These results revealed the transcriptomics responses in C. lanceolata to short-term stresses under this study's experimental conditions and provide preliminary clues about stem-differentiating xylem changes associated with different stresses.
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