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Winkiel MJ, Chowański S, Walkowiak-Nowicka K, Lubawy J, Słocińska M. Modulation of the antioxidant system by glycoalkaloids in the beetle Tenebrio molitor L. Comp Biochem Physiol C Toxicol Pharmacol 2024; 286:110018. [PMID: 39218133 DOI: 10.1016/j.cbpc.2024.110018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/17/2024] [Accepted: 08/29/2024] [Indexed: 09/04/2024]
Abstract
Various factors may affect the antioxidative system in insects, including xenobiotics. Glycoalkaloids (GAs) are plant secondary metabolites produced mainly by the Solanaceae family (nightshades), such as the food crop tomato Solanum lycopersicum L. These compounds exhibit a wide range of biological activities and have attracted increasing interest in the context of potential insecticide properties. Therefore, the aim of the presented study was to analyze the effects of GAs (solanine, chaconine, tomatine, and extracts of tomato leaves) on lipid peroxidation; the expression levels of genes encoding manganese superoxide dismutase (MnSOD), catalase (CAT), and heat shock protein 70 (HSP70); and the enzymatic activity of SOD and CAT in Tenebrio molitor larvae. This species is amodel organism for toxicological and ecophysiological studies and is also a pest of grain storage. The reported changes depend on the GA concentration, incubation time, and type of insect tissue. We observed that the tested GAs affected MnSOD expression levels, increased SOD activity in the fat body, and reduced enzyme activity in the gut. The results showed that CAT expression was upregulated in the fat body and that the enzymatic activity of CAT in the gut was greater in the treated group than in the control group. Moreover, GAs affected HSP70 expression and malondialdehyde levels in both tested tissues. This research contributes to our knowledge about the effects of GAs on the antioxidative system of T. molitor beetles. As efficient antioxidative system functioning is necessary for survival, the tested components may be targets of potential bioinsecticides.
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Affiliation(s)
- Magdalena Joanna Winkiel
- Department of Animal Physiology and Developmental Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Szymon Chowański
- Department of Animal Physiology and Developmental Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Karolina Walkowiak-Nowicka
- Department of Animal Physiology and Developmental Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Jan Lubawy
- Department of Animal Physiology and Developmental Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Małgorzata Słocińska
- Department of Animal Physiology and Developmental Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
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Huang Y, Xia P. Biomolecular condensates in plant cells: Mediating and integrating environmental signals and development. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 347:112178. [PMID: 38971467 DOI: 10.1016/j.plantsci.2024.112178] [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: 04/23/2024] [Revised: 06/23/2024] [Accepted: 06/30/2024] [Indexed: 07/08/2024]
Abstract
In response to the spatiotemporal coordination of various biochemical reactions and membrane-encapsulated organelles, plants appear to provide another effective mechanism for cellular organization by phase separation that allows the internal compartmentalization of cells to form a variety of membrane-less organelles. Most of the research on phase separation has centralized in various non-plant systems, such as yeast and animal systems. Recent studies have shown a remarkable correlation between the formation of condensates in plant systems and the formation of condensates in these systems. Moreover, the last decade has made new advances in phase separation research in the context of plant biology. Here, we provide an overview of the physicochemical forces and molecular factors that drive liquid-liquid phase separation in plant cells and the biochemical characterization of condensates. We then explore new developments in phase separation research specific to plants, discussing examples of condensates found in green plants and detailing their role in plant growth and development. We propose that phase separation may be a conserved organizational mechanism in plant evolution to help plants respond rapidly and effectively to various environmental stresses as sessile organisms.
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Affiliation(s)
- Yang Huang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Pengguo Xia
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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Dong S, Zhang J, Ling J, Xie Z, Song L, Wang Y, Zhao L, Zhao T. Comparative analysis of physical traits, mineral compositions, antioxidant contents, and metabolite profiles in five cherry tomato cultivars. Food Res Int 2024; 194:114897. [PMID: 39232525 DOI: 10.1016/j.foodres.2024.114897] [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: 04/26/2024] [Revised: 07/28/2024] [Accepted: 08/09/2024] [Indexed: 09/06/2024]
Abstract
Cherry tomatoes (Solanum lycopersicum var. cerasiforme) are cultivated and consumed worldwide. While numerous cultivars have been bred to enhance fruit quality, few studies have comprehensively evaluated the fruit quality of cherry tomato cultivars. In this study, we assessed fruits of five cherry tomato cultivars (Qianxi, Fengjingling, Fushan88, Yanyu, and Qiyu) at the red ripe stage through detailed analysis of their physical traits, mineral compositions, antioxidant contents, and metabolite profiles. Significant variations were observed among the cultivars in terms of fruit size, shape, firmness, weight, glossiness, and sepal length, with each cultivar displaying unique attributes. Mineral analysis revealed distinct patterns of essential and trace element accumulation, with notable differences in calcium, sodium, manganese, and selenium concentrations. Fenjingling was identified as a selenium enriched cultivar. Analysis of antioxidant contents highlighted Yanyu as particularly rich in vitamin C and Fenjingling as having elevated antioxidant enzyme activities. Metabolomics analysis identified a total number of 3,396 annotated metabolites, and the five cultivars showed distinct metabolomics profiles. Amino acid analysis showed Fushan88 to possess a superior profile, while sweetness and tartness assessments indicated that Yanyu exhibited higher total soluble solids (TSS) and acidity. Notably, red cherry tomato cultivars (Fushan88, Yanyu, and Qiyu) accumulated significantly higher levels of eugenol and α-tomatine, compounds associated with undesirable flavors, compared to pink cultivars (Qianxi and Fengjingling). Taken together, our results provide novel insights into the physical traits, nutritional value, and flavor-associated metabolites of cherry tomatoes, offering knowledge that could be implemented for the breeding, cultivation, and marketing of cherry tomato cultivars.
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Affiliation(s)
- Shuchao Dong
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Jiangsu 210014, China
| | - Jingwen Zhang
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Jiangsu 210014, China; College of Horticulture, Nanjing Agricultural University, Nanjing 210000, China
| | - Jiayi Ling
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Jiangsu 210014, China; College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225100, China
| | - Zixin Xie
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Jiangsu 210014, China; College of Horticulture, Nanjing Agricultural University, Nanjing 210000, China
| | - Liuxia Song
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Jiangsu 210014, China
| | - Yinlei Wang
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Jiangsu 210014, China
| | - Liping Zhao
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Jiangsu 210014, China.
| | - Tongmin Zhao
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Jiangsu 210014, China.
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Zhang Y, Dai X, Yuan S, Zou Y, Li Y, Liu X, Gao F. Macrophage-Targeted GSH-Depleting Nanocomplexes for Synergistic Chemodynamic Therapy/Gas Therapy/Immunotherapy of Intracellular Bacterial Infection. Biomacromolecules 2024; 25:6026-6037. [PMID: 39137337 DOI: 10.1021/acs.biomac.4c00684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Intracellular pathogens can survive inside the macrophages to protect themselves from eradication by the innate immune system and conventional antibiotics, resulting in severe bacterial infections. In this work, an antibiotic-free nanocomplex (HA/GA-Fe@NO-DON), exhibiting macrophage-targeted synergistic gas therapy (nitric oxide, NO)/chemodynamic therapy/immunotherapy, was reported. HA/GA-Fe nanoparticles were synthesized by the strong coordination interactions among carboxyl groups of hyaluronic acid (HA), polyphenol groups of gallic acid (GA), and Fe(II) ions. The hydrophobic glutathione (GSH)-responsive NO donor (NO-DON) was encapsulated in HA/GA-Fe nanoparticles to form the final nanocomplexes (HA/GA-Fe@NO-DON). HA on the nanocomplexes guides the macrophage-specific uptake and intracellular accumulation. After the uptake, HA/GA-Fe@NO-DON nanocomplexes could not only generate highly toxic hydroxyl radicals (•OH) by the Fenton reaction and GSH depletion but also release NO when stimulated by intracellular GSH. Meanwhile, the nanocomplexes could trigger an efficient proinflammation immune response to reinforce the antibacterial activity. This work presents the development of antibiotic-free macrophage-targeted HA/GA-Fe@NO-DON nanocomplexes as an effective adjuvant nanomedicine with synergistic gas therapy/chemodynamic therapy/immunotherapy for eliminating intracellular bacterial infection.
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Affiliation(s)
- Yongjie Zhang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Xiaomei Dai
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Siyuan Yuan
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Yuqin Zou
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Yu Li
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Xiaojun Liu
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Feng Gao
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
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5
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Feng G, Zhang H, Liu H, Zhang X, Jiang H, Liao S, Luo X, Yao H, Xiang B, Liu S, Zhang J, Zhang J, Fang J. Natural Flavonoid-Derived Enzyme Mimics DHKNase Balance the Two-Edged Reactive Oxygen Species Function for Wound Healing and Inflammatory Bowel Disease Therapy. RESEARCH (WASHINGTON, D.C.) 2024; 7:0464. [PMID: 39253100 PMCID: PMC11381673 DOI: 10.34133/research.0464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 08/07/2024] [Indexed: 09/11/2024]
Abstract
Rational regulation of reactive oxygen species (ROS) plays a vital importance in maintaining homeostasis of living biological systems. For ROS-related pathologies, chemotherapy technology derived from metal nanomaterials currently occupies a pivotal position. However, they suffer from inherent issues such as complicated synthesis, batch-to-batch variability, high cost, and potential biological toxicity caused by metal elements. Here, we reported for the first time that dual-action 3,5-dihydroxy-1-ketonaphthalene-structured small-molecule enzyme imitator (DHKNase) exhibited 2-edged ROS regulation, catering to the execution of physiology-beneficial ROS destiny among diverse pathologies in living systems. Based on this, DHKNase is validated to enable remarkable therapeutic effects in 2 classic disease models, including the pathogen-infected wound-healing model and the dextran sulfate sodium (DSS)-caused inflammatory bowel disease (IBD). This work provides a guiding landmark for developing novel natural small-molecule enzyme imitator and significantly expands their application potential in the biomedical field.
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Affiliation(s)
- Guangfu Feng
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
| | - Huaizu Zhang
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
| | - Huipeng Liu
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
| | - Xiaoyan Zhang
- College of Life Science, Shihezi University, Shihezi, Xinjiang 832003, P.R. China
| | - Hongmei Jiang
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
| | - Sijie Liao
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
| | - Xingyu Luo
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
| | - Hao Yao
- Changsha IMADEK Intelligent Technology Co. Ltd., Changsha, Hunan 410081, P.R. China
| | - Bo Xiang
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
| | - Shiyu Liu
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
| | - Jiali Zhang
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
| | - Jiaheng Zhang
- College of Chemistry, Food Laboratory of Zhongyuan, Flavour Science Research Center of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Jun Fang
- School of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, P.R. China
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Zang J, Yao X, Zhang T, Yang B, Wang Z, Quan S, Zhang Z, Liu J, Chen H, Zhang X, Hou Y. Excess iron accumulation affects maize endosperm development by inhibiting starch synthesis and inducing DNA damage. J Cell Physiol 2024:e31427. [PMID: 39239803 DOI: 10.1002/jcp.31427] [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: 07/15/2024] [Revised: 08/21/2024] [Accepted: 08/26/2024] [Indexed: 09/07/2024]
Abstract
Iron (Fe) storage in cereal seeds is the principal source of dietary Fe for humans. In maize (Zea mays), the accumulation of Fe in seeds is known to be negatively correlated with crop yield. Hence, it is essential to understand the underlying mechanism, which is crucial for developing and breeding maize cultivars with high yields and high Fe concentrations in the kernels. Here, through the successful application of in vitro kernel culture, we demonstrated that excess Fe supply in the medium caused the kernel to become collapsed and lighter in color, consistent with those found in yellow strip like 2 (ysl2, a small kernel mutant), implicated a crucial role of Fe concentration in kernel development. Indeed, over-accumulation of Fe in endosperm inhibited the abundance and activity of ADP-glucose pyrophosphorylase (AGPase) and the kernel development defect was alleviated by overexpression of Briittle 2 (Bt2, encoding a small subunit of AGPase) in ysl2 mutant. Imaging and quantitative analyses of reactive oxygen species (ROS) and cell death showed that Fe stress-induced ROS burst and severe DNA damage in endosperm cells. In addition, we have successfully identified candidate genes that are associated with iron homeostasis within the kernel, as well as upstream transcription factors that regulate ZmYSL2 by yeast one-hybrid screening. Collectively, our study will provide insights into the molecular mechanism of Fe accumulation-regulated seed development and promote the future efficient application of Fe element in corn improvement.
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Affiliation(s)
- Jie Zang
- National Key Laboratory of Wheat Improvement, Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences in Weifang, Shandong, China
| | - Xueyan Yao
- National Key Laboratory of Wheat Improvement, Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences in Weifang, Shandong, China
| | - Tengfei Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Boming Yang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhen Wang
- National Key Laboratory of Wheat Improvement, Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences in Weifang, Shandong, China
| | - Shuxuan Quan
- National Key Laboratory of Wheat Improvement, Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences in Weifang, Shandong, China
| | - Zhaogui Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Juan Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Huabang Chen
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Xiansheng Zhang
- National Key Laboratory of Wheat Improvement, Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences in Weifang, Shandong, China
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong, China
| | - Yifeng Hou
- National Key Laboratory of Wheat Improvement, Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences in Weifang, Shandong, China
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Zhao XY, Wang HQ, Shi W, Zhang WW, Zhao FJ. The Respiratory Burst Oxidase Homologue OsRBOHE is crucial for root hair formation, drought resistance and tillering in rice. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39238330 DOI: 10.1111/pce.15114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 08/09/2024] [Indexed: 09/07/2024]
Abstract
Respiratory Burst Oxidase Homologues (RBOHs) are involved in plant growth, development, and stress adaptation. How OsRBOHs affect root hair formation and consequently nutrient acquisition and drought resistance in rice is not well understood. We knocked out six OsRBOH genes in rice that were expressed in roots and identified OsRBOHE as the only one affecting root hair formation. OsRBOHE was strongly expressed in the root epidermis, root hairs and tiller buds. OsRBOHE is localised at the plasma membrane. Knockout of OsRBOHE decreased reactive oxygen species generation in the root hairs and tiller buds, downregulated genes involved in cell wall biogenesis, and decreased root hair length and tillering by 90% and 30%, respectively. Knockout of OsRBOHE decreased phosphorus acquisition only in low available P soil under aerobic conditions, but not in high P soil or under flooded conditions when P was likely not limited by diffusion. Knockout of OsRBOHE markedly decreased drought resistance of rice plants through the effect on root hair formation and the associated rhizosheath. Taken together, OsRBOHE is crucial for root hair formation and tillering and consequently on drought resistance in rice. The contribution of root hairs to P acquisition in rice is limited to aerobic soil.
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Affiliation(s)
- Xing-Yu Zhao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilisation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Han-Qing Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilisation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Wen Shi
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilisation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Wen-Wen Zhang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilisation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Fang-Jie Zhao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilisation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
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Yan T, Wang Y, Cui G, Wansee S, Wang X, Guo Y, Zhao H, Wang N, Kang Z, Tang C, Wang X. Virulent Effector Hasp155 of Puccinia striiformis f. sp. tritici Suppresses Plant Immunity and Promotes Fungus Infection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:19295-19303. [PMID: 39177757 DOI: 10.1021/acs.jafc.4c04091] [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: 08/24/2024]
Abstract
As a kind of obligate biotrophic fungus, Puccinia striiformis f. sp. tritici (Pst) secretes vast effectors via haustoria to host cells during the infection to inhibit host defense responses and promote fungal invasion. In this study, based on the completion of genome sequencing and haustorial transcriptome sequencing of Pst, we identified a Pst effector (Hasp155) that is significantly induced in the early stage of Pst infection to wheat. The 18 N-terminal amino acids of Hasp155 encoded a signal peptide with a secretory function. Transient expression of Hasp155 in Nicotiana benthamiana inhibited Bax-induced cell death as well as chitin-triggered callose deposition and defense-related gene expression. Moreover, delivery of the Hasp155 protein into wheat cells via type three secretion systems (TTSS) led to reduced plant immunity to nonpathogenic bacteria and to the avirulent Pst race with decreased H2O2 accumulation and promoted Pst development. Furthermore, transgenic overexpression of Hasp155 significantly renders wheat resistance susceptible, resulting in a decreased defense response and increased Pst pathogenicity. Overall, these results indicate that Hasp155 is an important effector of Pst pathogenicity by suppressing plant immunity.
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Affiliation(s)
- Tong Yan
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuteng Wang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Genfu Cui
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Somying Wansee
- College of International Education, Northwest A&F University, Yangling 712100, China
| | - Xinshi Wang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yaqi Guo
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hua Zhao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ning Wang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhensheng Kang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chunlei Tang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaojie Wang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
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9
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Touzout N, Bouchibane M, Tahraoui H, Mihoub A, Zhang J, Amrane A, Ahmad I, Danish S, Alahmadi TA, Ansari MJ. Silicon-mediated resilience: Unveiling the protective role against combined cypermethrin and hymexazol phytotoxicity in tomato seedlings. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 369:122370. [PMID: 39236605 DOI: 10.1016/j.jenvman.2024.122370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 08/18/2024] [Accepted: 08/31/2024] [Indexed: 09/07/2024]
Abstract
Insecticides and fungicides present potential threats to non-target crops, yet our comprehension of their combined phytotoxicity to plants is limited. Silicon (Si) has been acknowledged for its ability to induce crop tolerance to xenobiotic stresses. However, the specific role of Si in alleviating the cypermethrin (CYP) and hymexazol (HML) combined stress has not been thoroughly explored. This study aims to assess the effectiveness of Si in alleviating phytotoxic effects and elucidating the associated mechanisms of CYP and/or HML in tomato seedlings. The findings demonstrated that, compared to exposure to CYP or HML alone, the simultaneous exposure of CYP and HML significantly impeded seedling growth, resulting in more pronounced phytotoxic effects in tomato seedlings. Additionally, CYP and/or HML exposures diminished the content of photosynthetic pigments and induced oxidative stress in tomato seedlings. Pesticide exposure heightened the activity of both antioxidant and detoxification enzymes, increased proline and phenolic accumulation, and reduced thiols and ascorbate content in tomato seedlings. Applying Si (1 mM) to CYP- and/or HML-stressed seedlings alleviated pigment inhibition and oxidative damage by enhancing the activity of the pesticide metabolism system and secondary metabolism enzymes. Furthermore, Si stimulated the phenylpropanoid pathway by boosting phenylalanine ammonia-lyase activity, as confirmed by the increased total phenolic content. Interestingly, the application of Si enhanced the thiols profile, emphasizing its crucial role in pesticide detoxification in plants. In conclusion, these results suggest that externally applying Si significantly alleviates the physio-biochemical level in tomato seedlings exposed to a combination of pesticides, introducing innovative strategies for fostering a sustainable agroecosystem.
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Affiliation(s)
- Nabil Touzout
- Department of Nature and Life Sciences, Faculty of Sciences, Pole Urban Ouzera, University of Medea, Medea, 26000, Algeria.
| | - Malika Bouchibane
- Department of Nature and Life Sciences, Faculty of Sciences, Pole Urban Ouzera, University of Medea, Medea, 26000, Algeria
| | - Hichem Tahraoui
- Laboratory of Biomaterials and Transport Phenomena (LBMPT), University of MÉDÉA, ALGERIA, Nouveau Pôle Urbain, Médéa University, 26000, Médéa, Algeria
| | - Adil Mihoub
- Biophysical Environment Station, Center for Scientific and Technical Research on Arid Regions, Touggourt, Algeria
| | - Jie Zhang
- School of Engineering, Merz Court, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - Abdeltif Amrane
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000, Rennes, France
| | - Iftikhar Ahmad
- Department of Environmental Sciences, COMSATS University Islamabad Vehari-Campus, Vehari, 61100, Pakistan.
| | - Subhan Danish
- Pesticide Quality Control Laboratory, Agriculture Complex, Old Shujabad Road, Multan, 60000, Punjab, Pakistan.
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh, 11461, Saudi Arabia.
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad, Mahatma Jyotiba Phule Rohilkhand University Bareilly, India, 244001.
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10
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Zhang L, Wang L, Fang Y, Gao Y, Yang S, Su J, Ni J, Teng Y, Bai S. Phosphorylated transcription factor PuHB40 mediates ROS-dependent anthocyanin biosynthesis in pear exposed to high light. THE PLANT CELL 2024; 36:3562-3583. [PMID: 38842382 PMCID: PMC11371158 DOI: 10.1093/plcell/koae167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 05/15/2024] [Accepted: 06/03/2024] [Indexed: 06/07/2024]
Abstract
Plants are increasingly vulnerable to environmental stresses because of global warming and climate change. Stress-induced reactive oxygen species (ROS) accumulation results in plant cell damage, even cell death. Anthocyanins are important antioxidants that scavenge ROS to maintain ROS homeostasis. However, the mechanism underlying ROS-induced anthocyanin accumulation is unclear. In this study, we determined that the HD-Zip I family member transcription factor PuHB40 mediates ROS-dependent anthocyanin biosynthesis under high-light stress in pear (Pyrus ussuriensis). Specifically, PuHB40 induces the PuMYB123-like-PubHLH3 transcription factor complex for anthocyanin biosynthesis. The PuHB40-mediated transcriptional activation depends on its phosphorylation level, which is regulated by protein phosphatase PP2A. Elevated ROS content maintains high PuHB40 phosphorylation levels while also enhancing the PuHB40-induced PuMYB123-like transcription by decreasing the PuPP2AA2 expression, ultimately leading to increased anthocyanin biosynthesis. Our study reveals a pathway regulating the ROS-induced anthocyanin biosynthesis in pears, further clarifying the mechanism underlying the abiotic stress-induced anthocyanin biosynthesis, which may have implications for improving plant stress tolerance.
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Affiliation(s)
- Lu Zhang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Lu Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Yongchen Fang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Yuhao Gao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Shulin Yang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Jun Su
- Institute of Horticulture, Yunnan Academy of Agricultural Sciences, Kunming 650205, China
| | - Junbei Ni
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Yuanwen Teng
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, China
| | - Songling Bai
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang, China
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11
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Wal A, Piekarniak M, Staszek P, Chodór K, Bieniek J, Gniazdowska A, Krasuska U. Nitric oxide action in the digestive fluid of Nepenthes × ventrata is linked to the modulation of ROS level. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 216:109088. [PMID: 39241628 DOI: 10.1016/j.plaphy.2024.109088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 08/30/2024] [Accepted: 09/01/2024] [Indexed: 09/09/2024]
Abstract
Nepenthes are carnivorous plants with photoactive leaves converted into jug-shaped containers filled with the digestive fluid. The digestion requires various enzymes and reactive oxygen species (ROS) that facilitate proteolysis. Reactive nitrogen species are present in the digestive fluid of Nepenthes × ventrata, and the increased nitric oxide (NO) formation is associated with protein degradation. The aim of the work was to verify the beneficial effect of NO application into the trap on the dynamics of protein digestion and ROS homeostasis. Measurements were done using the digestive fluid or the tissue collected from the mature pitcher plants (fed) grown in a greenhouse. Two independent methods confirmed NO formation in the digestive fluid of fed and non-fed traps. NO supplementation with food into the trap accelerated protein degradation in the digestive fluid by increasing the proteolytic activity. NO modulated free radical formation (as the result of direct impact on NADPH oxidase), stimulated ROS scavenging capacity, increased -SH groups and flavonoids content, particularly at the beginning of the digestion. In non-fed traps, the relatively high level of protein nitration in the digestive fluid may prevent self-protein proteolysis. Whereas, after initiation of the digestion decreasing level of nitrated proteins in the fluid may indicate their accelerated degradation. Therefore, it can be assumed that NO exhibits a protective effect on the fluid and the trap tissue before digestion, while during digestion, NO is an accelerator of protein decomposition and the ROS balance keeper.
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Affiliation(s)
- Agnieszka Wal
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland.
| | - Maciej Piekarniak
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Pawel Staszek
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Kamila Chodór
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Jakub Bieniek
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Agnieszka Gniazdowska
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Urszula Krasuska
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland.
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12
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Basini G, Bertini S, Bussolati S, Zappavigna F, Berni M, Scaltriti E, Ramoni R, Grolli S, Quintavalla F, Grasselli F. The porcine corpus luteum as a model for studying the effects of nanoplastics. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 110:104503. [PMID: 39025424 DOI: 10.1016/j.etap.2024.104503] [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: 05/31/2024] [Revised: 07/10/2024] [Accepted: 07/14/2024] [Indexed: 07/20/2024]
Abstract
Nanoplastics (NPs) affect fertility. We evaluated the effects of NPs treatment on luteal and endothelial cells. We examined crucial markers of growth and redox status. NPs treatment did not induce changes in ATP levels in luteal cells, while it increased (p< 0.05) their proliferation. In endothelial cells, no change in proliferation was detected, while an increase (p<0.05) in ATP levels was observed. The increase of reactive oxygen species, superoxide anion (p<0.05) and nitric oxide (p<0.001) was detected in both cell types, which also showed changes in superoxide dismutase enzyme activity as well as an increase of non-enzymatic antioxidant power (p<0.05). A decrease (p<0.05) in progesterone production as well as an increase of vascular endothelial growth factor A levels were detected (p<0.05). In addition, a dose-dependent accumulation of NPs in endothelial cells was shown, that likely occurred through adhesion and internalization. Results underline potential risk of NPs for corpus luteum functionality.
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Affiliation(s)
- Giuseppina Basini
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Via del Taglio 10, Parma 43126, Italy.
| | - Simone Bertini
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Via del Taglio 10, Parma 43126, Italy
| | - Simona Bussolati
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Via del Taglio 10, Parma 43126, Italy
| | - Francesca Zappavigna
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Via del Taglio 10, Parma 43126, Italy
| | - Melissa Berni
- Risk Analysis and Genomic Epidemiology Unit, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Strada dei Mercati 13a, Parma 43126, Italy
| | - Erika Scaltriti
- Risk Analysis and Genomic Epidemiology Unit, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Strada dei Mercati 13a, Parma 43126, Italy
| | - Roberto Ramoni
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Via del Taglio 10, Parma 43126, Italy
| | - Stefano Grolli
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Via del Taglio 10, Parma 43126, Italy
| | - Fausto Quintavalla
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Via del Taglio 10, Parma 43126, Italy
| | - Francesca Grasselli
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Via del Taglio 10, Parma 43126, Italy
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13
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Das M, Mondal S, Ghosh R, Darbar S, Roy L, Das AK, Pal D, Bhattacharya SS, Mallick AK, Kundu JK, Pal SK. A study of scarless wound healing through programmed inflammation, proliferation and maturation using a redox balancing nanogel. J Biomed Mater Res A 2024; 112:1594-1611. [PMID: 38545912 DOI: 10.1002/jbm.a.37712] [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: 01/10/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 07/12/2024]
Abstract
In the study, we have shown the efficacy of an indigenously developed redox balancing chitosan gel with impregnated citrate capped Mn3O4 nanoparticles (nanogel). Application of the nanogel on a wound of preclinical mice model shows role of various signaling molecules and growth factors, and involvement of reactive oxygen species (ROS) at every stage, namely hemostasis, inflammation, and proliferation leading to complete maturation for the scarless wound healing. While in vitro characterization of nanogel using SEM, EDAX, and optical spectroscopy reveals pH regulated redox buffering capacity, in vivo preclinical studies on Swiss albino involving IL-12, IFN-γ, and α-SMA signaling molecules and detailed histopathological investigation and angiogenesis on every stage elucidate role of redox buffering for the complete wound healing process.
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Affiliation(s)
- Monojit Das
- Department of Zoology, Vidyasagar University, Midnapore, India
- Department of Zoology, Uluberia College, University of Calcutta, Howrah, India
| | - Susmita Mondal
- Department of Chemical, and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India
| | - Ria Ghosh
- Department of Chemical, and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India
- Department of Biochemistry, University of Calcutta, Kolkata, India
| | - Soumendra Darbar
- Research and Development Division, Dey's Medical Stores (Mfg.) Ltd, Kolkata, India
| | - Lopamudra Roy
- Department of Applied Optics and Photonics, University of Calcutta, Kolkata, West Bengal, India
| | - Anjan Kumar Das
- Department of Pathology, Coochbehar Government Medical College and Hospital, India
| | - Debasish Pal
- Department of Zoology, Uluberia College, University of Calcutta, Howrah, India
| | | | - Asim Kumar Mallick
- Department of Pediatrics, Nil RatanSircar Medical College and Hospital, Kolkata, India
| | | | - Samir Kumar Pal
- Department of Zoology, Uluberia College, University of Calcutta, Howrah, India
- Department of Chemical, and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India
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14
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Zhang S, Wang X, Zhao T, Zhou C. Effector CLas0185 targets methionine sulphoxide reductase B1 of Citrus sinensis to promote multiplication of 'Candidatus Liberibacter asiaticus' via enhancing enzymatic activity of ascorbate peroxidase 1. MOLECULAR PLANT PATHOLOGY 2024; 25:e70002. [PMID: 39215961 PMCID: PMC11365454 DOI: 10.1111/mpp.70002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 07/17/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024]
Abstract
Citrus huanglongbing (HLB) has been causing enormous damage to the global citrus industry. As the main causal agent, 'Candidatus Liberibacter asiaticus' (CLas) delivers a set of effectors to modulate host responses, while the modes of action adopted remain largely unclear. Here, we demonstrated that CLIBASIA_00185 (CLas0185) could attenuate reactive oxygen species (ROS)-mediated cell death in Nicotiana benthamiana. Transgenic expression of CLas0185 in Citrus sinensis 'Wanjincheng' enhanced plant susceptibility to CLas. We found that methionine sulphoxide reductase B1 (CsMsrB1) was targeted by the effector, and its abundance was elevated in CLas0185-transgenic citrus plants. Their interaction promoted CLas proliferation. We then determined that CsMsrB1 sustained redox state and enzymatic activity of ascorbate peroxidase 1 (CsAPX1) under oxidative stress. The latter reduced H2O2 accumulation and was associated with host susceptibility to CLas infection. Consistently, citrus plants expressing CLas0185 and CsMsrB1 conferred enhanced APX activity and decreased H2O2 content. Taken together, these findings revealed how CLas0185 benefits CLas colonization by targeting CsMsrB1, which facilitated the antioxidant activity and depressed ROS during pathogen infection.
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Affiliation(s)
- Shushe Zhang
- Citrus Research InstituteSouthwest University, National Citrus Engineering Research CenterChongqingChina
- State Key Laboratory for Biology of Plant Diseases and Insect PestsChinese Academy of Agriculture Sciences, Institute of Plant ProtectionBeijingChina
| | - Xuefeng Wang
- Citrus Research InstituteSouthwest University, National Citrus Engineering Research CenterChongqingChina
| | - Tingchang Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect PestsChinese Academy of Agriculture Sciences, Institute of Plant ProtectionBeijingChina
| | - Changyong Zhou
- Citrus Research InstituteSouthwest University, National Citrus Engineering Research CenterChongqingChina
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15
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Fu X, Yang Z, Guo L, Luo L, Tao Y, Lan T, Hu J, Li Z, Luo K, Xu C. Restorer of fertility like 30, encoding a mitochondrion-localized pentatricopeptide repeat protein, regulates wood formation in poplar. HORTICULTURE RESEARCH 2024; 11:uhae188. [PMID: 39247885 PMCID: PMC11377185 DOI: 10.1093/hr/uhae188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 07/01/2024] [Indexed: 09/10/2024]
Abstract
Nuclear-mitochondrial communication is crucial for plant growth, particularly in the context of cytoplasmic male sterility (CMS) repair mechanisms linked to mitochondrial genome mutations. The restorer of fertility-like (RFL) genes, known for their role in CMS restoration, remain largely unexplored in plant development. In this study, we focused on the evolutionary relationship of RFL family genes in poplar specifically within the dioecious Salicaceae plants. PtoRFL30 was identified to be preferentially expressed in stem vasculature, suggesting a distinct correlation with vascular cambium development. Transgenic poplar plants overexpressing PtoRFL30 exhibited a profound inhibition of vascular cambial activity and xylem development. Conversely, RNA interference-mediated knockdown of PtoRFL30 led to increased wood formation. Importantly, we revealed that PtoRFL30 plays a crucial role in maintaining mitochondrial functional homeostasis. Treatment with mitochondrial activity inhibitors delayed wood development in PtoRFL30-RNAi transgenic plants. Further investigations unveiled significant variations in auxin accumulation levels within vascular tissues of PtoRFL30-transgenic plants. Wood development anomalies resulting from PtoRFL30 overexpression and knockdown were rectified by NAA and NPA treatments, respectively. Our findings underscore the essential role of the PtoRFL30-mediated mitochondrion-auxin signaling module in wood formation, shedding light on the intricate nucleus-organelle communication during secondary vascular development.
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Affiliation(s)
- Xiaokang Fu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Ziwei Yang
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Li Guo
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Lianjia Luo
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Yuanxun Tao
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Ting Lan
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jian Hu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Zeyu Li
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Keming Luo
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Changzheng Xu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
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16
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Ibrahim S, Mira MM, Hill RD, Stasolla C. The Brassica napus phytoglobin 1 (BnPgb1) mitigates the decrease in plant fertility resulting from high temperature stress. JOURNAL OF PLANT PHYSIOLOGY 2024; 300:154302. [PMID: 38945072 DOI: 10.1016/j.jplph.2024.154302] [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: 05/03/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/02/2024]
Abstract
High temperature stress during flowering adversely affects plant fertility, decreasing plant productivity. Daily cycles of heat stress (HS), imposed on Brassica napus L. plants by slowly ramping the temperature from 23 °C to 35 °C before lowering back to pre-stress conditions, inhibited flower and silique formation, with fewer seeds per silique during the stress period, as well as decreased pollen viability. Heat stress also elevated the transcripts and protein levels of class 1 phytoglobin BnPgb1, with the protein accumulating preferentially within the anther walls. Over-expression of BnPgb1 was sufficient to attenuate the reduction in plant fertility at high temperatures while its down-regulation exacerbated the effects of HS. Relative to WT anthers, the rise in ROS and ROS-induced damage caused by HS was limited when BnPgb1 was over-expressed, and this was linked to changes in antioxidant responses. High temperatures reduced the level of ascorbic acid (AsA) in anthers by favoring its oxidation via ascorbate oxidase (AOA) and limiting its regeneration through suppression of monodehydroascorbate reductase (MDHAR) and dehydroascorbate reductase (DHAR). Anthers of heat-stressed plants over-expressing BnPgb1 retained a higher AsA content with concomitant increased activities of DHAR, MDHAR, ascorbate peroxidase (APX) and superoxide dismutase (SOD). These changes suggest that BnPgb1 potentiates antioxidant responses during HS which mitigate the depression of fertility.
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Affiliation(s)
- Shimaa Ibrahim
- Department of Plant Science, University of Manitoba, Winnipeg, R3T2N2, MB, Canada
| | - Mohammed M Mira
- Department of Plant Science, University of Manitoba, Winnipeg, R3T2N2, MB, Canada
| | - Robert D Hill
- Department of Plant Science, University of Manitoba, Winnipeg, R3T2N2, MB, Canada
| | - Claudio Stasolla
- Department of Plant Science, University of Manitoba, Winnipeg, R3T2N2, MB, Canada.
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17
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Cheng L, Zhao S, Li F, Ni X, Yang N, Yu J, Wang X. Overexpression of EgrZFP6 from Eucalyptus grandis increases ROS levels by downregulating photosynthesis in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 214:108972. [PMID: 39067106 DOI: 10.1016/j.plaphy.2024.108972] [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: 03/03/2024] [Revised: 07/06/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024]
Abstract
In plants, abiotic stressors are frequently encountered during growth and development. To counteract these challenges, zinc finger proteins play a critical role as transcriptional regulators. The EgrZFP6 gene, which codes for a zinc finger protein of the C2H2 type, was shown to be considerably elevated in the leaves of Eucalyptus grandis seedlings in the current study when they were subjected to a variety of abiotic stimuli, including heat, salinity, cold, and drought. Analysis conducted later showed that in EgrZFP6 transgenic Arabidopsis thaliana, EgrZFP6 was essential for causing hyponastic leaves and controlling the stress response. Furthermore, the transgenic plants showed elevated levels of reactive oxygen species (ROS), such as superoxide and hydrogen peroxide (H2O2). Additionally, in EgrZFP6-overexpressing plants, transcriptome sequencing analysis demonstrated a considerable downregulation of many genes involved in photosynthesis, decreasing electron transport efficiency and perhaps promoting the buildup of ROS. Auxin levels were higher and auxin signal transduction was compromised in the transgenic plants. Stress-related genes were also upregulated in Arabidopsis as a result of EgrZFP6 overexpression. It is hypothesized that EgrZFP6 can downregulate photosynthesis, which would cause the production of ROS in chloroplasts. As a result, this protein may alter plant stress responses and leaf morphology via a retrograde mechanism driven by ROS. These results highlight the significance of zinc finger proteins in this sophisticated process and advance our understanding of the complex link between gene regulation, ROS signaling, and plant stress responses.
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Affiliation(s)
- Longjun Cheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China.
| | - Shuang Zhao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China
| | - Fangyan Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China
| | - Xiaoxiang Ni
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China
| | - Ning Yang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China
| | - Jianfeng Yu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China
| | - Xiaofei Wang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China.
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18
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Tao HZ, He WB, Ding L, Wen L, Xu Z, Cheng YH, Chen ML. Enrichment of antioxidant peptide from rice protein hydrolysates via rice husk derived biochar. Food Chem 2024; 463:141050. [PMID: 39236384 DOI: 10.1016/j.foodchem.2024.141050] [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: 07/09/2024] [Revised: 08/25/2024] [Accepted: 08/28/2024] [Indexed: 09/07/2024]
Abstract
In this study, rice husk biochar was engineered with abundant iron ion sites to enhance the enrichment of antioxidant peptides from rice protein hydrolysates through metal-chelating interactions. The π-π interactions and metal ion chelation were identified as the primary mechanisms for the enrichment process. Through peptide sequencing, four peptides were identified: LKFL (P1: Leu-Lys-Phe-Leu), QLLF (P2: Gln-Leu-Leu-Phe), WLAYG (P3: Trp-Leu-Ala-Tyr-Gly), and HFCGG (P4: His-Phe-Cys-Gly-Gly). The vitro analysis and molecular docking revealed that peptides P1-P4 possessed remarkable scavenging ability against radicals and Fe2+ chelating ability. Notably, peptide P4 showed radical scavenging activity comparable to glutathione (GSH) against 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis-3-ethylbenzthiazoline-6-sulphonate (ABTS) radicals. Cellular experiments further confirmed that peptide P4 effectively protected HepG2 cells from oxidative stress-induced damage. The modified rice husk biochar proved to be an effective means for enriching rice antioxidant peptides from protein hydrolysates.
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Affiliation(s)
- Hui-Zhen Tao
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
| | - Wen-Bin He
- Hunan Provincial Institute of Product and Goods Quality Inspection, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan, China 410007
| | - Li Ding
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
| | - Li Wen
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
| | - Zhou Xu
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
| | - Yun-Hui Cheng
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China.
| | - Mao-Long Chen
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China.
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19
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Kargı-Gemici E, Şengelen A, Aksüt Y, Akyol O, Şengi Z-Erhan S, Bay M, Önay-Uçar E, Selcan A, Demi Rgan S. Cerium oxide nanoparticles (nanoceria) pretreatment attenuates cell death in the hippocampus and cognitive dysfunction due to repeated isoflurane anesthesia in newborn rats. Neurotoxicology 2024; 105:82-93. [PMID: 39216603 DOI: 10.1016/j.neuro.2024.08.005] [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: 05/10/2024] [Revised: 08/15/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
General anesthetics exposure, particularly prolonged or repeated exposure, is a crucial cause of neurological injuries. Notably, isoflurane (ISO), used in pediatric anesthesia practice, is toxic to the developing brain. The relatively weak antioxidant system at early ages needs antioxidant support to protect the brain against anesthesia. Cerium oxide nanoparticles (CeO2-NPs, nanoceria) are nano-antioxidants and stand out due to their unique surface chemistry, high stability, and biocompatibility. Although CeO2-NPs have been shown to exhibit neuroprotective and cognitive function-facilitating effects, there are no reports on their protective effects against anesthesia-induced neurotoxicity and cognitive impairments. Herein, Wistar albino rat pups were exposed to ISO (1.5 %, 3-h) at postnatal day (P)7+P9+P11, and the protective properties of CeO2-NP pretreatment (0.5 mg/kg, intraperitoneal route) were investigated for the first time. The control group at P7+9+11 received 50 % O2 (3-h) instead of ISO. Exposure to nanoceria one-hour before ISO protected hippocampal neurons of the developing rat brain against apoptosis [determined by hematoxylin-eosin (HE) staining, immunohistochemistry (IHC) analysis with caspase-3, and immunoblotting with Bax/Bcl2, cleaved caspase-3 and PARP1] oxidative stress, and inflammation [determined by immunoblotting with 4-hydroxynonenal (4HNE), nuclear factor kappa-B (NF-κB), and tumor necrosis factor-alpha (TNF-α)]. CeO2-NP pretreatment also reduced ISO-induced learning (at P28-32) and memory (at P33) deficits evaluated by Morris Water Maze. However, memory deficits and thigmotactic behaviors were detected in the agent-control group; elimination of these harmful effects will be possible with dose studies, thus providing evidence supporting safer use. Overall, our findings support pretreatment with nanoceria application as a simple strategy that might be used for pediatric anesthesia practice to protect infants and children from ISO-induced cell death and learning and memory deficits.
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Affiliation(s)
- Ezgi Kargı-Gemici
- Clinic of Anesthesiology and Reanimation, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkiye.
| | - Aslıhan Şengelen
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Istanbul, Turkiye.
| | - Yunus Aksüt
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Istanbul, Turkiye; Department of Molecular Biology and Genetics, Basic Medical Sciences, School of Medicine, Koç University, Istanbul, Turkiye.
| | - Onat Akyol
- Clinic of Anesthesiology and Reanimation, Istanbul Florence Nightingale Hospital, Istanbul, Turkiye.
| | - Selma Şengi Z-Erhan
- Clinic of Pathology, University of Health Sciences, Prof. Dr. Cemil Taşçıoğlu City Hospital, Istanbul, Turkiye.
| | - Mehmet Bay
- Clinic of Anesthesiology and Reanimation, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkiye.
| | - Evren Önay-Uçar
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Istanbul, Turkiye.
| | - Ayşin Selcan
- Clinic of Anesthesiology and Reanimation, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkiye.
| | - Serdar Demi Rgan
- Clinic of Anesthesiology and Reanimation, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkiye; Department of Molecular Biology and Genetics, Institute of Graduate Studies in Sciences, Istanbul University, Istanbul, Turkiye.
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20
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Li J, Yan Y, Yang L, Ding S, Zheng Y, Xiao Z, Yang A, Liang W. Duality of H 2O 2 detoxification and immune activation of Ralstonia solanacearum alkyl hydroperoxide reductase C (AhpC) in tobacco. Int J Biol Macromol 2024; 279:135138. [PMID: 39214231 DOI: 10.1016/j.ijbiomac.2024.135138] [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: 04/07/2024] [Revised: 08/20/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
Although microbial pathogens utilize various strategies to evade plant immunity, host plants have evolved powerful defense mechanisms that can be activated in preparation for threat by infective organisms. Here, we identified one 24 kDa alkyl hydroperoxide reductase C (AhpC) from the culture supernatant of Ralstonia solanacearum strain FQY-4 (denoted RsAhpC) in the presence of host roots. RsAhpC contributes to H2O2 detoxification and the pathogenicity of R. solanacearum. However, the introduction of RsAhpC into the apoplast could activate immune defense, leading to suppression of pathogen colonization in both Nicotiana benthamiana and the Honghua Dajinyuan (HD) cultivar of N. tabacum. Consequently, overexpression of RsAhpC in the HD cultivar enhanced the resistance of tobacco to bacterial wilt disease caused by FQY-4. Overall, this study provides insight into the arms race between pathogens and their plant hosts. Specifically, it is firstly reported that plants can sense pathogen-derived AhpC to activate defenses, in addition to the role of AhpC in pathogen ROS detoxification. Therefore, the macromolecule AhpC produced by Ralstonia solanacearum has the ability to enhance plant defense as an elicitor, which provides a practical strategy for disease resistance breeding.
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Affiliation(s)
- Jingtao Li
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Yu Yan
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Limei Yang
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Shuzhi Ding
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Yaning Zheng
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Zhiliang Xiao
- The Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Aiguo Yang
- The Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Wenxing Liang
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China.
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21
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Mamani Ramos Y, Huamán Castilla NL, Colque Ayma EJ, Mamani Condori N, Campos Quiróz CN, Vilca FZ. Divergent effects of azithromycin on purple corn (Zea mays L.) cultivation: Impact on biomass and antioxidant compounds. PLoS One 2024; 19:e0307548. [PMID: 39172948 PMCID: PMC11340972 DOI: 10.1371/journal.pone.0307548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 07/08/2024] [Indexed: 08/24/2024] Open
Abstract
The present study assessed the impact of using irrigation water contaminated with Azithromycin (AZM) residues on the biomass and antioxidant compounds of purple corn; for this purpose, the plants were cultivated under ambient conditions, and the substrate used consisted of soil free from AZM residues, mixed with compost in a ratio of 1:1 (v/v). The experiment was completely randomized with four replications, with treatments of 0, 1, 10, and 100 μg/L of AZM. The results indicate that the presence of AZM in irrigation water at doses of 1 and 10 μg/L increases the weight of dry aboveground biomass, while at an amount of 100 μg/L, it decreases. Likewise, this study reveals that by increasing the concentration of AZM from 1 to 10 μg/L, total polyphenols and monomeric anthocyanins double, in contrast, with an increase to 100 μg/L, these decrease by 44 and 53%, respectively. It has been demonstrated that purple corn exposed to the antibiotic AZM at low doses has a notable antioxidant function in terms of DPPH and ORAC. The content of flavonols, phenolic acids, and flavanols increases by 57, 28, and 83%, respectively, when the AZM concentration is from 1 to 10 μg/L. However, with an increase to 100 μg/L, these compounds decrease by 17, 40, and 42%, respectively. On the other hand, stem length, root length, and dry weight of root biomass are not significantly affected by the presence of AZM in irrigation water.
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Affiliation(s)
- Yoselin Mamani Ramos
- Escuela Profesional de Ingeniería Ambiental de la Universidad Nacional de Moquegua, Urb Ciudad Jardín-Pacocha-Ilo, Perú
- Laboratorio de Contaminantes Orgánicos y Ambiente del IINDEP de la Universidad Nacional de Moquegua, Urb Ciudad Jardín-Pacocha-Ilo, Perú
| | - Nils Leander Huamán Castilla
- Escuela Profesional de Ingeniería Agroindustrial, Universidad Nacional de Moquegua, Moquegua, Perú
- Laboratorio de Tecnologías Sustentables para la Extracción de Compuestos de Alto Valor, Instituto de Investigación para el Desarrollo del Perú, Universidad Nacional de Moquegua, Moquegua, Perú
| | - Elvis Jack Colque Ayma
- Laboratorio de Contaminantes Orgánicos y Ambiente del IINDEP de la Universidad Nacional de Moquegua, Urb Ciudad Jardín-Pacocha-Ilo, Perú
| | - Noemi Mamani Condori
- Escuela Profesional de Ingeniería Ambiental de la Universidad Nacional de Moquegua, Urb Ciudad Jardín-Pacocha-Ilo, Perú
- Laboratorio de Contaminantes Orgánicos y Ambiente del IINDEP de la Universidad Nacional de Moquegua, Urb Ciudad Jardín-Pacocha-Ilo, Perú
| | - Clara Nely Campos Quiróz
- Laboratorio de Contaminantes Orgánicos y Ambiente del IINDEP de la Universidad Nacional de Moquegua, Urb Ciudad Jardín-Pacocha-Ilo, Perú
| | - Franz Zirena Vilca
- Escuela Profesional de Ingeniería Ambiental de la Universidad Nacional de Moquegua, Urb Ciudad Jardín-Pacocha-Ilo, Perú
- Laboratorio de Contaminantes Orgánicos y Ambiente del IINDEP de la Universidad Nacional de Moquegua, Urb Ciudad Jardín-Pacocha-Ilo, Perú
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22
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Singh S, Viswanath A, Chakraborty A, Narayanan N, Malipatil R, Jacob J, Mittal S, Satyavathi TC, Thirunavukkarasu N. Identification of key genes and molecular pathways regulating heat stress tolerance in pearl millet to sustain productivity in challenging ecologies. FRONTIERS IN PLANT SCIENCE 2024; 15:1443681. [PMID: 39239194 PMCID: PMC11374647 DOI: 10.3389/fpls.2024.1443681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Accepted: 07/29/2024] [Indexed: 09/07/2024]
Abstract
Pearl millet is a nutri-cereal that is mostly grown in harsh environments, making it an ideal crop to study heat tolerance mechanisms at the molecular level. Despite having a better-inbuilt tolerance to high temperatures than other crops, heat stress negatively affects the crop, posing a threat to productivity gain. Hence, to understand the heat-responsive genes, the leaf and root samples of two contrasting pearl millet inbreds, EGTB 1034 (heat tolerant) and EGTB 1091 (heat sensitive), were subjected to heat-treated conditions and generated genome-wide transcriptomes. We discovered 13,464 differentially expressed genes (DEGs), of which 6932 were down-regulated and 6532 up-regulated in leaf and root tissues. The pairwise analysis of the tissue-based transcriptome data of the two genotypes demonstrated distinctive genotype and tissue-specific expression of genes. The root exhibited a higher number of DEGs compared to the leaf, emphasizing different adaptive strategies of pearl millet. A large number of genes encoding ROS scavenging enzymes, WRKY, NAC, enzymes involved in nutrient uptake, protein kinases, photosynthetic enzymes, and heat shock proteins (HSPs) and several transcription factors (TFs) involved in cross-talking of temperature stress responsive mechanisms were activated in the stress conditions. Ribosomal proteins emerged as pivotal hub genes, highly interactive with key genes expressed and involved in heat stress response. The synthesis of secondary metabolites and metabolic pathways of pearl millet were significantly enriched under heat stress. Comparative synteny analysis of HSPs and TFs in the foxtail millet genome demonstrated greater collinearity with pearl millet compared to proso millet, rice, sorghum, and maize. In this study, 1906 unannotated DEGs were identified, providing insight into novel participants in the molecular response to heat stress. The identified genes hold promise for expediting varietal development for heat tolerance in pearl millet and similar crops, fostering resilience and enhancing grain yield in heat-prone environments.
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Affiliation(s)
- Swati Singh
- Genomics and Molecular Breeding Lab, Global Center of Excellence on Millets (Shree Anna), ICAR-Indian Institute of Millets Research, Hyderabad, India
| | - Aswini Viswanath
- Genomics and Molecular Breeding Lab, Global Center of Excellence on Millets (Shree Anna), ICAR-Indian Institute of Millets Research, Hyderabad, India
| | - Animikha Chakraborty
- Genomics and Molecular Breeding Lab, Global Center of Excellence on Millets (Shree Anna), ICAR-Indian Institute of Millets Research, Hyderabad, India
| | - Neha Narayanan
- Genomics and Molecular Breeding Lab, Global Center of Excellence on Millets (Shree Anna), ICAR-Indian Institute of Millets Research, Hyderabad, India
| | - Renuka Malipatil
- Genomics and Molecular Breeding Lab, Global Center of Excellence on Millets (Shree Anna), ICAR-Indian Institute of Millets Research, Hyderabad, India
| | - Jinu Jacob
- Genomics and Molecular Breeding Lab, Global Center of Excellence on Millets (Shree Anna), ICAR-Indian Institute of Millets Research, Hyderabad, India
| | - Shikha Mittal
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, India
| | - Tara C Satyavathi
- Genomics and Molecular Breeding Lab, Global Center of Excellence on Millets (Shree Anna), ICAR-Indian Institute of Millets Research, Hyderabad, India
| | - Nepolean Thirunavukkarasu
- Genomics and Molecular Breeding Lab, Global Center of Excellence on Millets (Shree Anna), ICAR-Indian Institute of Millets Research, Hyderabad, India
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23
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Dhiman S, Debnath N, Bandyopadhyay K, Das S. Novel Approach of Nanophotonic Electron Transfer for Augmenting Photosynthesis in Arachis hypogaea: A Biophysical Rationale behind the Plasmonic Enhancement of Chemical Energy Transfer. ACS OMEGA 2024; 9:35332-35347. [PMID: 39184485 PMCID: PMC11339815 DOI: 10.1021/acsomega.4c00550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 07/02/2024] [Accepted: 07/08/2024] [Indexed: 08/27/2024]
Abstract
Plant photosynthetic machinery is the main source of acquisition and conversion of solar energy to chemical energy with the capacity for autonomous self-repair. However, the major limitation of the chloroplast photosystem is that it can absorb light only within the visible range of the spectrum, which is roughly 50% of the incident solar radiation. Moreover, the photosynthetic apparatus is saturated by less than 10% of available sunlight. If the capacity of solar light absorption and the transmission of resulting photons through the photosynthetic electron transport chain (ETC) can be extended, the overall efficiency of photosynthesis can be improved. The plant nanobionic approach can address this via the introduction of nanoparticles into or in the vicinity of the photosynthetic machinery/chloroplast. We have studied this exceptional nanobionic-mediated capability of two optically active nanostructures and evaluated the impact of their optical properties on plant photosynthesis. Our study revealed that metal (Ag) and core-shell metal nanostructures (AgS) can increase light absorption and improve electron transport through ETC. Both nanostructures were found to have a beneficial effect on the photoluminescence property of the isolated chloroplast. Translocation studies confirmed systemic transportation of the nanomaterial in different plant tissues. The primary growth parameters showed no detrimental effect until 21 days of treatment on Arachis hypogaea. The nano silver/silica core/shell structure (AgS) was found to be more advantageous over nano silver (AgNP) in photon entrapment, light-dependent biochemical reactions, and toxicity parameters. In the future, these nanostructures can enhance photosynthesis by increasing light absorption and resulting in higher assimilatory power generation in the form of ATP and NADPH. This approach may lead to a paradigm shift toward a sustainable method for the configuration of plant chloroplast-based hybrid energy harvesting devices.
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Affiliation(s)
- Shikha Dhiman
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram 122413, India
| | - Nitai Debnath
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram 122413, India
| | | | - Sumistha Das
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram 122413, India
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24
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Bugyna L, Bilská K, Boháč P, Pribus M, Bujdák J, Bujdáková H. Anti-Biofilm Effect of Hybrid Nanocomposite Functionalized with Erythrosine B on Staphylococcus aureus Due to Photodynamic Inactivation. Molecules 2024; 29:3917. [PMID: 39202995 PMCID: PMC11357139 DOI: 10.3390/molecules29163917] [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: 07/08/2024] [Revised: 08/05/2024] [Accepted: 08/13/2024] [Indexed: 09/03/2024] Open
Abstract
Resistant biofilms formed by Staphylococcus aureus on medical devices pose a constant medical threat. A promising alternative to tackle this problem is photodynamic inactivation (PDI). This study focuses on a polyurethane (PU) material with an antimicrobial surface consisting of a composite based on silicate, polycation, and erythrosine B (EryB). The composite was characterized using X-ray diffraction and spectroscopy methods. Anti-biofilm effectiveness was determined after PDI by calculation of CFU mL-1. The liquid PU precursors penetrated a thin silicate film resulting in effective binding of the PU/silicate composite and the PU bulk phases. The incorporation of EryB into the composite matrix did not significantly alter the spectral properties or photoactivity of the dye. A green LED lamp and laser were used for PDI, while irradiation was performed for different periods. Preliminary experiments with EryB solutions on planktonic cells and biofilms optimized the conditions for PDI on the nanocomposite materials. Significant eradication of S. aureus biofilm on the composite surface was achieved by irradiation with an LED lamp and laser for 1.5 h and 10 min, respectively, resulting in a 10,000-fold reduction in biofilm growth. These results demonstrate potential for the development of antimicrobial polymer surfaces for modification of medical materials and devices.
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Affiliation(s)
- Larysa Bugyna
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia; (L.B.); (K.B.)
| | - Katarína Bilská
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia; (L.B.); (K.B.)
| | - Peter Boháč
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 36 Bratislava, Slovakia; (P.B.); (M.P.); (J.B.)
| | - Marek Pribus
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 36 Bratislava, Slovakia; (P.B.); (M.P.); (J.B.)
| | - Juraj Bujdák
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 36 Bratislava, Slovakia; (P.B.); (M.P.); (J.B.)
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia
| | - Helena Bujdáková
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia; (L.B.); (K.B.)
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25
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Wang S, Zeng J, Zhang T, Yang L, Yang Y, Lu Z, Jin X, Wang M, Guo S. Ammonium enhances rice resistance to Magnaporthe oryzae through H 2O 2 accumulation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109058. [PMID: 39181086 DOI: 10.1016/j.plaphy.2024.109058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 08/02/2024] [Accepted: 08/19/2024] [Indexed: 08/27/2024]
Abstract
Nitrogen (N) is essential for the physiological processes of plants. However, the specific mechanisms by which different nitrogen forms influence rice blast pathogenesis remain poorly understood. This study used hydroponic assays to explore how ammonium (NH4+) and nitrate (NO3-) affect rice after inoculation with Magnaporthe oryzae (M. oryzae). The results showed that NH4+, compared to NO3-, significantly reduced disease severity, fungal growth, fungal hyphae number, the expansion capacity of infectious hyphae, and disease-related loss of photosynthesis. Additionally, NH4+ enhanced the expression of defense-related genes, including OsPBZ1, OsCHT1, OsPR1a, and OsPR10. NH4+-treated rice also exhibited higher hydrogen peroxide (H2O2) accumulation and increased antioxidant enzyme activities. Moreover, susceptibility to rice blast disease increased when H2O2 was scavenged, while a reduction in susceptibility was observed with the application of exogenous H2O2. These results suggest that ammonium enhances rice resistance to M. oryzae, potentially through H2O2 accumulation. The findings provide valuable insights into how different nitrogen forms affect plant immunity in rice, which is crucial for controlling rice blast and ensuring stable food production.
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Affiliation(s)
- Shiyu Wang
- Key Lab of Organic-based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Jixing Zeng
- Key Lab of Organic-based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Tianyao Zhang
- Key Lab of Organic-based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Lei Yang
- Key Lab of Organic-based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yating Yang
- Key Lab of Organic-based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Zhifeng Lu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, Wuhan, 430070, China.
| | - Xiang Jin
- Changbaishan Vocational Technical College, Baishan, 134300, China.
| | - Min Wang
- Key Lab of Organic-based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Shiwei Guo
- Key Lab of Organic-based Fertilizers of China and Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
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Wang R, Li J, Liang Y. Role of ROS signaling in the plant defense against vascular pathogens. CURRENT OPINION IN PLANT BIOLOGY 2024; 81:102617. [PMID: 39163783 DOI: 10.1016/j.pbi.2024.102617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/14/2024] [Accepted: 07/26/2024] [Indexed: 08/22/2024]
Abstract
Reactive oxygen species (ROS) is a collective term for highly reactive oxygen derivatives, including singlet oxygen, hydroxyl radicals, superoxide anions, and hydrogen peroxide. In plants, ROS are produced in apoplasts, chloroplasts, mitochondria, and peroxisomes. Although ROS are toxic when their levels exceed a certain threshold, low-concentration ROS can serve as essential signaling molecules for plant growth and development, as well as plant responses to abiotic and biotic stresses. Various aspects of the role of ROS in plants have been discussed in previous reviews. In this review, we first summarize recent progress in the regulatory mechanisms of apoplastic ROS signaling and then propose its potential roles in plant defense against vascular pathogens to provide new ideas for the prevention and control of vascular diseases.
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Affiliation(s)
- Ran Wang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory for Agricultural Microbiome of the Ministry of Agriculture and Rural Affairs, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jianwei Li
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory for Agricultural Microbiome of the Ministry of Agriculture and Rural Affairs, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yan Liang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory for Agricultural Microbiome of the Ministry of Agriculture and Rural Affairs, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China.
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27
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Rezazadehfar P, Rezayian M, Niknam V, Mirmasoumi M. Elicitor-enhanced steroidal sapogenin accumulation in hairy root cultures of Trigonella foenum-graecum. Sci Rep 2024; 14:19106. [PMID: 39154043 PMCID: PMC11330440 DOI: 10.1038/s41598-024-69625-8] [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: 02/19/2024] [Accepted: 08/07/2024] [Indexed: 08/19/2024] Open
Abstract
In current work, we studied hairy root induction in Trigonella foenum graecum, which is an important medicinal plant, and examined the impact of different elicitors on some phytochemical characteristics and metabolites production in hairy root cultures. Accordingly, some factors such as five strain types of Agrobacterium rhizogenes (1724, 15834, A4, A13 and MSU) and three different explants, namely leaf, cotyledon and hypocotyl were studied. The results showed that different A. rhizogenes strains exhibited different infection efficiency. MSU and 15834 had highest efficiency of hairy root induction than other strains. Also, hairy root induction frequency in leaf explants was higher than in other explants. Salicylic acid (SA), nitric oxide (NO), CaCl2 and penconazole (PEN) were used in elicitation process. Hairy roots were treated with SA (0.1 and 0.5 mM), NO (10 and 50 µM), CaCl2 (5 and 10 mM) and PEN (5 and 10 mg/L). Applied elicitors enhanced antioxidant enzymes activities and reduced oxidative stress markers; this observation might be ascribed to regulation of the oxidative status of the elicited cells. Significant increase of antioxidant metabolites (total phenol, flavonoid and anthocyanin) in PEN-treated hairy roots was associated to phenylalanine ammonia lyase activity, indicating an up-regulation of phenylpropanoid/flavonoid metabolism. PEN and CaCl2 treatment enhanced steroidal sapogenin in hairy root cultures. These results suggested that use of elicitors can enhance the production of secondary metabolites in transformed hairy roots. Among the elicitors applied, CaCl2 and PEN were the most effective in increasing secondary metabolite production in transformed hairy roots of T. foenum graecum.
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Affiliation(s)
- Poorak Rezazadehfar
- Department of Plant Biology, School of Biology, College of Science, University of Tehran, Tehran, 14155, Iran
| | - Maryam Rezayian
- Department of Plant Biology, School of Biology, College of Science, University of Tehran, Tehran, 14155, Iran
| | - Vahid Niknam
- Department of Plant Biology, School of Biology, College of Science, University of Tehran, Tehran, 14155, Iran.
- Center of Excellence in Medicinal Plant Metabolites, Tarbiat Modares University, Tehran, Iran.
| | - Masoud Mirmasoumi
- Department of Plant Biology, School of Biology, College of Science, University of Tehran, Tehran, 14155, Iran
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Hoshika Y, Agathokleous E, Moura BB, Paoletti E. Ozone risk assessment with free-air controlled exposure (FACE) experiments: A critical revisit. ENVIRONMENTAL RESEARCH 2024; 255:119215. [PMID: 38782333 DOI: 10.1016/j.envres.2024.119215] [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: 02/05/2024] [Revised: 05/03/2024] [Accepted: 05/21/2024] [Indexed: 05/25/2024]
Abstract
Since risk assessments of tropospheric ozone (O3) are crucial for agricultural and forestry sectors, there is a growing body for realistic assessments by a stomatal flux-based approach in Free-Air Controlled Exposure (FACE) facilities. Ozone risks are normally described as relative risks (RRs), which are calculated by assuming the biomass or yield at zero O3 dose as "reference". However, the estimation of the reference biomass or yield is challenging due to a lack of O3-clean-air treatment at the FACEs and the extrapolation without data in a low O3 range increases the bias for estimating the reference values. Here, we reviewed a current methodology for the risk assessment at FACEs and presented a simple and effective way ("modified Paoletti's approach") of defining RRs just using biomass or yield data with a range of expected impacts under the FACE conditions hypothesizing three possible scenarios based on prediction limits using 95% credible intervals (CI) (1. Best fit using the intercept as reference, 2. Optimistic scenario using a lower CI and 3. Worst scenario using an upper CI). As a result, O3-sensitive species show a relatively narrow effect range (optimistic vs. worst scenario) whereas a wide range of response may be possibly taken in resistant species. Showing a possible effect range allows for a comprehensive understanding of the potential risks and its uncertainties related to a species sensitivity to O3. As a supporting approach, we also recommend to use scientifically relevant tools (i.e., ethylenediurea treatments; mechanistic plant models) for strengthening the obtained results for the RRs against O3. Interestingly, the moderately sensitive or resistant species showed non-linear rather than linear dose-response relationships, suggesting a need for the flexible functional form for the risk assessment to properly describe the complex plant response such as hormesis, which depends on their plasticity to O3 stress.
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Affiliation(s)
- Yasutomo Hoshika
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council of Italy (CNR), Via Madonna del Piano, I-50019, Sesto Fiorentino, Italy; NBFC, National Biodiversity Future Center, Palermo, 90133, Italy.
| | - Evgenios Agathokleous
- School of Ecology and Applied Meteorology, Nanjing University of Information Science and Technology (NUIST), Ningliu Rd. 219, Nanjing, Jiangsu, 210044, China
| | - Barbara Baesso Moura
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council of Italy (CNR), Via Madonna del Piano, I-50019, Sesto Fiorentino, Italy; NBFC, National Biodiversity Future Center, Palermo, 90133, Italy
| | - Elena Paoletti
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council of Italy (CNR), Via Madonna del Piano, I-50019, Sesto Fiorentino, Italy; NBFC, National Biodiversity Future Center, Palermo, 90133, Italy
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Chang RR, Yao W, Pang JL, Dong KY, Lu YY, Huang BC, Jin RC. External redox couple enhanced anammox sludge activity at low temperature: Insight into intracellular resource synthesis. WATER RESEARCH 2024; 260:121904. [PMID: 38878317 DOI: 10.1016/j.watres.2024.121904] [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: 04/18/2024] [Revised: 05/28/2024] [Accepted: 06/06/2024] [Indexed: 07/27/2024]
Abstract
Anaerobic ammonium oxidation (anammox), an energy-efficient deamination biotechnology, faces operational challenges in low-temperature environments. Enhancing the metabolic activity of anammox bacteria (AnAOB) is pivotal for advancing its application in mainstream municipal wastewater treatment. Inspired by the metabolic adaptability of AnAOB and based on our previous findings, this work investigated the enhancement of intracellular ATP and NADH synthesis through the exogenous supply of reduced humic acid (HAred) and H2O2 redox couple, aiming to augment AnAOB activity under low-temperature conditions. Our experimental setup involved continuous dosing of 0.0067 μmol g-1 volatile suspended solid of H2O2 and 10 mg g-1 volatile suspended solid of HAred into a mainstream anammox reactor operated at 15 °C with an influent TN content of 60 mg/L. The results showed that HAred / H2O2 couple succeeded in maintaining the effluent TN at 10.72 ± 0.91 mg l-1. The specific anammox activity, ATP and NADH synthesis levels of sludge increased by 1.34, 2.33 and 6.50 folds, respectively, over the control setup devoid of the redox couple. High-throughput sequencing analysis revealed that the relative abundance of Candidatus Kuenenia after adding HAred / H2O2 couple reached 3.65 % at the end of operation, which was 5.14 folds higher than that of the control group. Further metabolomics analysis underscored an activation in the metabolism of amino acids, nucleotides, and phospholipids, which collectively enhanced the availability of ATP and NADH for the respiratory processes. These findings may provide guidance on strategy development for improving the electron transfer efficiency of AnAOB and underscore the potential of using redox couples to promote the mainstream application of anammox technology.
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Affiliation(s)
- Rong-Rong Chang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Wei Yao
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Jin-Luo Pang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Kai-Yue Dong
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Yao-Yao Lu
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Bao-Cheng Huang
- School of Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Ren-Cun Jin
- School of Engineering, Hangzhou Normal University, Hangzhou 311121, China
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Khokhar AA, Hui L, Khan D, You Z, Zaman QU, Usman B, Wang HF. Transcriptome Profiles Reveal Key Regulatory Networks during Single and Multifactorial Stresses Coupled with Melatonin Treatment in Pitaya ( Selenicereus undatus L.). Int J Mol Sci 2024; 25:8901. [PMID: 39201587 PMCID: PMC11354645 DOI: 10.3390/ijms25168901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Revised: 08/03/2024] [Accepted: 08/13/2024] [Indexed: 09/02/2024] Open
Abstract
In response to evolving climatic conditions, plants frequently confront multiple abiotic stresses, necessitating robust adaptive mechanisms. This study focuses on the responses of Selenicereus undatus L. to both individual stresses (cadmium; Cd, salt; S, and drought; D) and their combined applications, with an emphasis on evaluating the mitigating effects of (M) melatonin. Through transcriptome analysis, this study identifies significant gene expression changes and regulatory network activations. The results show that stress decreases pitaya growth rates by 30%, reduces stem and cladode development by 40%, and increases Cd uptake under single and combined stresses by 50% and 70%, respectively. Under stress conditions, enhanced activities of H2O2, POD, CAT, APX, and SOD and elevated proline content indicate strong antioxidant defenses. We identified 141 common DEGs related to stress tolerance, most of which were related to AtCBP, ALA, and CBP pathways. Interestingly, the production of genes related to signal transduction and hormones, including abscisic acid and auxin, was also significantly induced. Several calcium-dependent protein kinase genes were regulated during M and stress treatments. Functional enrichment analysis showed that most of the DEGs were enriched during metabolism, MAPK signaling, and photosynthesis. In addition, weighted gene co-expression network analysis (WGCNA) identified critical transcription factors (WRKYs, MYBs, bZIPs, bHLHs, and NACs) associated with antioxidant activities, particularly within the salmon module. This study provides morpho-physiological and transcriptome insights into pitaya's stress responses and suggests molecular breeding techniques with which to enhance plant resistance.
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Affiliation(s)
- Aamir Ali Khokhar
- Hainan Yazhou-Bay Seed Laboratory, School of Breeding and Multiplication, Hainan University, Sanya 572025, China; (A.A.K.); (L.H.); (D.K.); (Z.Y.); (Q.U.Z.)
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, School of Tropical Crops and Forestry, Hainan University, Haikou 570228, China
| | - Liu Hui
- Hainan Yazhou-Bay Seed Laboratory, School of Breeding and Multiplication, Hainan University, Sanya 572025, China; (A.A.K.); (L.H.); (D.K.); (Z.Y.); (Q.U.Z.)
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, School of Tropical Crops and Forestry, Hainan University, Haikou 570228, China
| | - Darya Khan
- Hainan Yazhou-Bay Seed Laboratory, School of Breeding and Multiplication, Hainan University, Sanya 572025, China; (A.A.K.); (L.H.); (D.K.); (Z.Y.); (Q.U.Z.)
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, School of Tropical Crops and Forestry, Hainan University, Haikou 570228, China
| | - Zhang You
- Hainan Yazhou-Bay Seed Laboratory, School of Breeding and Multiplication, Hainan University, Sanya 572025, China; (A.A.K.); (L.H.); (D.K.); (Z.Y.); (Q.U.Z.)
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, School of Tropical Crops and Forestry, Hainan University, Haikou 570228, China
| | - Qamar U Zaman
- Hainan Yazhou-Bay Seed Laboratory, School of Breeding and Multiplication, Hainan University, Sanya 572025, China; (A.A.K.); (L.H.); (D.K.); (Z.Y.); (Q.U.Z.)
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, School of Tropical Crops and Forestry, Hainan University, Haikou 570228, China
| | - Babar Usman
- Hainan Yazhou-Bay Seed Laboratory, School of Breeding and Multiplication, Hainan University, Sanya 572025, China; (A.A.K.); (L.H.); (D.K.); (Z.Y.); (Q.U.Z.)
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, School of Tropical Crops and Forestry, Hainan University, Haikou 570228, China
| | - Hua-Feng Wang
- Hainan Yazhou-Bay Seed Laboratory, School of Breeding and Multiplication, Hainan University, Sanya 572025, China; (A.A.K.); (L.H.); (D.K.); (Z.Y.); (Q.U.Z.)
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, School of Tropical Crops and Forestry, Hainan University, Haikou 570228, China
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Cai Y, Shi Z, Zhao P, Yang Y, Cui Y, Tian M, Wang J. Temporal transcriptome and metabolome study revealed molecular mechanisms underlying rose responses to red spider mite infestation and predatory mite antagonism. FRONTIERS IN PLANT SCIENCE 2024; 15:1436429. [PMID: 39224847 PMCID: PMC11368075 DOI: 10.3389/fpls.2024.1436429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 07/29/2024] [Indexed: 09/04/2024]
Abstract
Introduction Red spider mite (Tetranychus urticae) infestation (SMI) is a detrimental factor for roses grown indoors. Although predatory mite (Neoseiulus californicus) antagonism (PMA) is often utilized to alleviate SMI damage, little is known about the defensive response of greenhouse-grown roses to SMI and the molecular mechanism by which PMA protects roses. Methods To determine the transcriptome and metabolome responses of roses to SMI and PMA, the leaves of a rose cultivar ("Fairy Zixia/Nightingale") were infested with T. urticae, followed by the introduction of predator mite. Leaf samples were collected at various time points and subjected to transcriptome and metabolome analyses. Results We found that 24 h of SMI exerted the most changes in the expression of defense-related genes and metabolites in rose leaves. KEGG pathway analysis of differentially expressed genes (DEGs) and metabolites revealed that rose responses to SMI and PMA were primarily enriched in pathways such as sesquiterpenoid and triterpenoid biosynthesis, benzoxazinoid biosynthesis, stilbenoid, diarylheptanoid and gingerol biosynthesis, phytosterol biosynthesis, MAPK signaling pathway, phenylpropanoid biosynthesis, and other pathways associated with resistance to biotic stress. Rose reacted to SMI and PMA by increasing the expression of structural genes and metabolite levels in phytosterol biosynthesis, mevalonate (MVA) pathway, benzoxazinoid biosynthesis, and stilbenoid biosynthesis. In addition, PMA caused a progressive recover from SMI, allowing rose to revert to its normal growth state. PMA restored the expression of 190 essential genes damaged by SMI in rose leaves, including transcription factors DRE1C, BH035, MYB14, EF110, WRKY24, NAC71, and MY108. However, after 144 h of PMA treatment, rose responsiveness to stimulation was diminished, and after 192 h, the metabolic levels of organic acids and lipids were recovered in large measure. Conclusion In conclusion, our results offered insights on how roses coordinate their transcriptome and metabolome to react to SMI and PMA, therefore shedding light on how roses, T. urticae, and N. californicus interact.
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Affiliation(s)
- Yanfei Cai
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China
- Yunnan Flower Technology Innovation Center, Kunming, Yunnan, China
- Yunnan Seed Laboratory, Kunming, Yunnan, China
| | - Ziming Shi
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China
- Yunnan Flower Technology Innovation Center, Kunming, Yunnan, China
- Yunnan Seed Laboratory, Kunming, Yunnan, China
| | - Peifei Zhao
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China
- Yunnan Flower Technology Innovation Center, Kunming, Yunnan, China
- Yunnan Seed Laboratory, Kunming, Yunnan, China
| | - Yingjie Yang
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China
- Yunnan Flower Technology Innovation Center, Kunming, Yunnan, China
- Yunnan Seed Laboratory, Kunming, Yunnan, China
| | - Yinshan Cui
- Yunnan Pulis Biotechnology Co. Ltd., Kunming, Yunnan, China
| | - Min Tian
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China
- Yunnan Flower Technology Innovation Center, Kunming, Yunnan, China
- Yunnan Seed Laboratory, Kunming, Yunnan, China
| | - Jihua Wang
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China
- Yunnan Flower Technology Innovation Center, Kunming, Yunnan, China
- Yunnan Seed Laboratory, Kunming, Yunnan, China
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Gajewska E, Witusińska A, Bernat P. Nickel-induced oxidative stress and phospholipid remodeling in cucumber leaves. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 348:112229. [PMID: 39151803 DOI: 10.1016/j.plantsci.2024.112229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/16/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Nickel phytotoxicity has been attributed, among others, to oxidative stress. However, little is known about Ni-induced phospholipid modifications, including the oxidative ones. Accumulation of reactive oxygen species (ROS), antioxidative enzyme activities, malondialdehyde and the early lipid oxidation products contents, membrane permeability, phospholipid profile as well as phospholipid unsaturation degree were studied in the 1st and the 2nd leaves of hydroponically grown cucumber seedlings subjected to Ni stress. Compared to the 2nd leaf the 1st one showed stronger visual Ni toxicity symptoms, higher Ni, O2.- and H2O2 accumulation as well as greater enhancement in membrane permeability. Enzyme activities were differently influenced by Ni stress, however most pronounced changes were generally found in the 1st leaf. Ni treatment resulted in oxidation of leaf lipids, which was evidenced by appearance of increased contents of MDA and the early produced oxylipins. Among the latter 9-hydroxyoctadecatrienoic acid (9-HOTrE) and 13-hydroxyoctadecatrienoic acid (13-HOTrE) contents showed the most pronounced increase in response to Ni treatment. Exposure to the metal led to the changes in the leaf phospholipid profile and increased degree of phospholipid unsaturation. The obtained results have been discussed in relation to the difference in Ni stress severity between the 1st and the 2nd leaves.
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Affiliation(s)
- Ewa Gajewska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Plant Physiology and Biochemistry, Banacha 12/16, Lodz 90-237, Poland.
| | - Aleksandra Witusińska
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Plant Physiology and Biochemistry, Banacha 12/16, Lodz 90-237, Poland.
| | - Przemysław Bernat
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Industrial Microbiology and Biotechnology, Banacha 12/16, Lodz 90-237, Poland.
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Gupta R, Verma N, Tewari RK. Micronutrient deficiency-induced oxidative stress in plants. PLANT CELL REPORTS 2024; 43:213. [PMID: 39133336 DOI: 10.1007/s00299-024-03297-6] [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: 01/11/2024] [Accepted: 08/01/2024] [Indexed: 08/13/2024]
Abstract
Micronutrients like iron (Fe), zinc (Zn), copper (Cu), manganese (Mn), boron (B), nickel (Ni), and molybdenum (Mo) perform significant roles in the regulation of plant metabolism, growth, and development. Micronutrients, namely Fe, Zn, Cu, Mn, and Ni, are involved in oxidative stress and antioxidant defense as they are cofactors or activators of various antioxidant enzymes, viz., superoxide dismutase (Fe, Cu/Zn, Mn, and Ni), catalase (Fe), and ascorbate peroxidase (Fe). An effort has been made to incorporate recent advances along with classical work done on the micronutrient deficiency-induced oxidative stress and associated antioxidant responses of plants. Deficiency of a micronutrient produces ROS in the cellular compartments. Enzymatic and non-enzymatic antioxidant defense systems are often modulated by micronutrient deficiency to regulate redox balance and scavenge deleterious ROS for the safety of cellular constituents. ROS can strike cellular constituents such as lipids, proteins, and nucleic acids and can destruct cellular membranes and proteins. ROS might act as a signaling molecule and activate the antioxidant proteins by interacting with signaling partners such as respiratory burst oxidase homolog (RBOH), G-proteins, Ca2+, mitogen activated protein kinases (MAPKs), and various transcription factors (TFs). Opinions on probable ROS signaling under micronutrient deficiency have been described in this review. However, further research is required to decipher micronutrient deficiency-induced ROS generation, perception, and associated downstream signaling events, leading to the development of antioxidant responses in plants.
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Affiliation(s)
- Roshani Gupta
- Department of Botany, University of Lucknow, Lucknow, 226007, India
| | - Nikita Verma
- Department of Botany, University of Lucknow, Lucknow, 226007, India
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Hino Y, Inada T, Yoshioka M, Yoshioka H. NADPH oxidase-mediated sulfenylation of cysteine derivatives regulates plant immunity. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:4641-4654. [PMID: 38577861 DOI: 10.1093/jxb/erae111] [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: 11/24/2023] [Accepted: 04/04/2024] [Indexed: 04/06/2024]
Abstract
Reactive oxygen species (ROS) are rapidly generated during plant immune responses by respiratory burst oxidase homolog (RBOH), which is a plasma membrane-localized NADPH oxidase. Although regulatory mechanisms of RBOH activity have been well documented, the ROS-mediated downstream signaling is unclear. We here demonstrated that ROS sensor proteins play a central role in ROS signaling via oxidative post-translational modification of cysteine residues, sulfenylation. To detect protein sulfenylation, we used dimedone, which specifically and irreversibly binds to sulfenylated proteins. The sulfenylated proteins were labeled by dimedone in Nicotiana benthamiana leaves, and the conjugates were detected by immunoblot analyses. In addition, a reductant dissociated H2O2-induced conjugates, suggesting that cysteine persulfide and/or polysulfides are involved in sulfenylation. These sulfenylated proteins were continuously increased during both pattern-triggered immunity (PTI) and effector-triggered immunity (ETI) in a RBOH-dependent manner. Pharmacological inhibition of ROS sensor proteins by dimedone perturbated cell death, ROS accumulation induced by INF1 and MEK2DD, and defense against fungal pathogens. On the other hand, Rpi-blb2-mediated ETI responses were enhanced by dimedone. These results suggest that the sulfenylation of cysteine and its derivatives in various ROS sensor proteins are important events downstream of the RBOH-dependent ROS burst to regulate plant immune responses.
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Affiliation(s)
- Yuta Hino
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Taichi Inada
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Miki Yoshioka
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Hirofumi Yoshioka
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
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Lopez LE, Ibeas MA, Diaz Dominguez G, Estevez JM. Exploring the puzzle of reactive oxygen species acting on root hair cells. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:4589-4598. [PMID: 38833316 DOI: 10.1093/jxb/erae260] [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: 04/25/2024] [Accepted: 06/03/2024] [Indexed: 06/06/2024]
Abstract
Reactive oxygen species (ROS) are essential signaling molecules that enable cells to respond rapidly to a range of stimuli. The ability of plants to recognize various stressors, incorporate a variety of environmental inputs, and initiate stress-response networks depends on ROS. Plants develop resilience and defensive systems as a result of these processes. Root hairs are central components of root biology since they increase the surface area of the root, anchor it in the soil, increase its ability to absorb water and nutrients, and foster interactions between microorganisms. In this review, we specifically focused on root hair cells and we highlighted the identification of ROS receptors, important new regulatory hubs that connect ROS production, transport, and signaling in the context of two hormonal pathways (auxin and ethylene) and under low temperature environmental input related to nutrients. As ROS play a crucial role in regulating cell elongation rates, root hairs are rapidly gaining traction as a very valuable single plant cell model for investigating ROS homeostasis and signaling. These promising findings might soon facilitate the development of plants and roots that are more resilient to environmental stressors.
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Affiliation(s)
- Leonel E Lopez
- Fundación Instituto Leloir and IIBBA-CONICET, Av. Patricias Argentinas 435, Buenos Aires CP C1405BWE, Argentina
| | - Miguel A Ibeas
- Centro de Biotecnología Vegetal (CBV), Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Gabriela Diaz Dominguez
- Fundación Instituto Leloir and IIBBA-CONICET, Av. Patricias Argentinas 435, Buenos Aires CP C1405BWE, Argentina
| | - Jose M Estevez
- Fundación Instituto Leloir and IIBBA-CONICET, Av. Patricias Argentinas 435, Buenos Aires CP C1405BWE, Argentina
- Centro de Biotecnología Vegetal (CBV), Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
- ANID-Millennium Science Initiative Program-Millennium Nucleus for the Development of Super Adaptable Plants (MN-SAP), Santiago, Chile
- ANID-Millennium Science Initiative Program-Millennium Institute for Integrative Biology (iBio), Santiago, Chile
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Auverlot J, Dard A, Sáez-Vásquez J, Reichheld JP. Redox regulation of epigenetic and epitranscriptomic gene regulatory pathways in plants. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:4459-4475. [PMID: 38642408 DOI: 10.1093/jxb/erae165] [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: 02/05/2024] [Accepted: 04/18/2024] [Indexed: 04/22/2024]
Abstract
Developmental and environmental constraints influence genome expression through complex networks of regulatory mechanisms. Epigenetic modifications and remodelling of chromatin are some of the major actors regulating the dynamic of gene expression. Unravelling the factors relaying environmental signals that induce gene expression reprogramming under stress conditions is an important and fundamental question. Indeed, many enzymes involved in epigenetic and chromatin modifications are regulated by redox pathways, through post-translational modifications of proteins or by modifications of the flux of metabolic intermediates. Such modifications are potential hubs to relay developmental and environmental changes for gene expression reprogramming. In this review, we provide an update on the interaction between major redox mediators, such as reactive oxygen and nitrogen species and antioxidants, and epigenetic changes in plants. We detail how redox status alters post-translational modifications of proteins, intracellular epigenetic and epitranscriptional modifications, and how redox regulation interplays with DNA methylation, histone acetylation and methylation, miRNA biogenesis, and chromatin structure and remodelling to reprogram genome expression under environmental constraints.
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Affiliation(s)
- Juline Auverlot
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, CNRS, F-66860 Perpignan, France
| | - Avilien Dard
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, CNRS, F-66860 Perpignan, France
- Centre for Plant Systems Biology, VIB, 9052, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
| | - Julio Sáez-Vásquez
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, CNRS, F-66860 Perpignan, France
| | - Jean-Philippe Reichheld
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, CNRS, F-66860 Perpignan, France
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Fu Q, Liu S, Hu P, Chen H, Zheng J, Shi S, Xu M, Zhou T, Sun Y. Diclofenac Sodium Restores the Sensitivity of Colistin-Resistant Gram-Negative Bacteria to Colistin. ACS Infect Dis 2024; 10:2860-2869. [PMID: 39073350 DOI: 10.1021/acsinfecdis.4c00207] [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] [Indexed: 07/30/2024]
Abstract
The continuous rise of multidrug-resistant (MDR) Gram-negative bacteria poses a severe threat to public health worldwide. Colistin(COL), employed as the last-line antibiotic against MDR pathogens, is now at risk due to the emergence of colistin-resistant (COL-R) bacteria, potentially leading to adverse patient outcomes. In this study, synergistic activity was observed when colistin and diclofenac sodium (DS) were combined and used against clinical COL-R strains of Escherichia coli (E. coli), Klebsiella pneumoniae (K. pneumoniae), Acinetobacter baumannii (A. baumannii), and Pseudomonas aeruginosa (P. aeruginosa) both in vitro and in vivo. The checkerboard method and time-killing assay showed that DS, when combined with COL, exhibited enhanced antibacterial activity compared to DS and COL monotherapies. Crystal violet staining and scanning electron microscopy showed that COL-DS inhibited biofilm formation compared with monotherapy. The in vivo experiment showed that the combination of DS and COL reduced bacterial loads in infected mouse thighs. Synergistic activity was observed when COL and DS were use in combination against clinical COL-R strains of E. coli, K. pneumoniae, A. baumannii and P. aeruginosa both in vitro and in vivo. The synergistic antibacterial effect of the COL-DS combination has been confirmed by performing various in vitro and in vivo experiments, which provides a new treatment strategy for infections caused by MDR bacteria.
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Affiliation(s)
- Qingxia Fu
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University; Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, Wenzhou, Zhejiang Province, China 325000
| | - Sichen Liu
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University; Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, Wenzhou, Zhejiang Province, China 325000
| | - Panjie Hu
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang Province, China 325000
| | - Huanchang Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University; Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, Wenzhou, Zhejiang Province, China 325000
| | - Junyuan Zheng
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University; Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, Wenzhou, Zhejiang Province, China 325000
| | - Shiyi Shi
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang Province, China 325000
| | - Mengxin Xu
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University; Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, Wenzhou, Zhejiang Province, China 325000
| | - Tieli Zhou
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University; Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, Wenzhou, Zhejiang Province, China 325000
| | - Yao Sun
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University; Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, Wenzhou, Zhejiang Province, China 325000
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Touzout N, Mihoub A, Ahmad I, Jamal A, Danish S. Deciphering the role of nitric oxide in mitigation of systemic fungicide induced growth inhibition and oxidative damage in wheat. CHEMOSPHERE 2024; 364:143046. [PMID: 39117087 DOI: 10.1016/j.chemosphere.2024.143046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 08/03/2024] [Accepted: 08/06/2024] [Indexed: 08/10/2024]
Abstract
Consento (CON) poses a significant environmental hazard as a systemic fungicide, adversely affecting the health of non-target organisms. Nitric oxide (NO), a signaling molecule, is known to play a crucial role in plant physiology and abiotic stress tolerance. However, whether NO plays any role to enhance fungicide CON tolerance in wheat seedlings is yet unclear. Therefore, we conducted a hydroponic experiment i) to investigate the morpho-physio-biochemical changes of wheat seedlings to fungicide CON stress, and ii) to examine the effects of NO and fungicide CON treatments on oxidative damage, antioxidant system, secondary metabolism and detoxification of systemic fungicide in wheat seedlings. The results showed that CON fungicide at the highest (4X) concentration significantly decreased wheat seedlings fresh weight (46.89%), shoot length (40.26%), root length (56.11%) and total chlorophyll contents (67.44%) in a dose response relationship. Moreover, CON significantly increased hydrogen peroxide, malondialdehyde, catalase, ascorbate peroxidase, glutathione-S-transferase, and peroxidase activities while decreased reduced glutathione (GSH) content. This ultimately impaired the redox homeostasis of cells, leading to oxidative damage in cell membrane. Under fungicide treatment, the addition of NO reduced the fungicide phytotoxicity, with an increase of over 60% in seedling growth. The NO application mitigated CON phytotoxicity as reflected by significantly increased chlorophyll pigments (69.88%) and decreased oxidative damage in wheat leaves. Indeed, the NO alleviatory effect was able to increase the tolerance of seedlings to fungicide, which resulted increments in antioxidant and detoxification enzymes activity, with the enhanced GSH level (78.54%). Interestingly, NO alleviated CON phytotoxicity through the phenylpropanoid pathway by enhancing the activity of secondary metabolism enzymes such as phenylalanine ammonia-lyase (47.28%), polyphenol oxidase (9%), and associated metabolites such as phenolic acids (77.62%), flavonoids (34.33%) in wheat leaves. Our study has provided evidence that NO plays a key role in the metabolism and detoxification of systemic fungicide in wheat through enhanced activity of antioxidants, detoxifications and secondary metabolic enzymes.
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Affiliation(s)
- Nabil Touzout
- Department of Nature and Life Sciences, Faculty of Sciences, Pole Urban Ouzera, University of Medea, Medea, 26000, Algeria
| | - Adil Mihoub
- Biophysical Environment Station, Center for Scientific and Technical Research on Arid Regions, Touggourt, Algeria
| | - Iftikhar Ahmad
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan.
| | - Aftab Jamal
- Department of Soil and Environmental Sciences, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar, 25130, Pakistan
| | - Subhan Danish
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, 60000, Punjab, Pakistan; Pesticide Quality Control Laboratory, Agriculture Complex, Old Shujabad Road, Multan, 60000, Punjab, Pakistan
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Zhang Z, Xu Y, Liu C, Chen L, Zhang Y, He Z, Wang R, Xun C, Ma Y, Yuan X, Wang X, Chen Y, Yang X. Cataloging the Genetic Response: Unveiling Drought-Responsive Gene Expression in Oil Tea Camellia ( Camellia oleifera Abel.) through Transcriptomics. Life (Basel) 2024; 14:989. [PMID: 39202731 PMCID: PMC11355629 DOI: 10.3390/life14080989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2024] [Revised: 08/03/2024] [Accepted: 08/06/2024] [Indexed: 09/03/2024] Open
Abstract
Drought stress is a critical environmental factor that significantly impacts plant growth and productivity. However, the transcriptome analysis of differentially expressed genes in response to drought stress in Camellia oleifera Abel. is still unclear. This study analyzed the transcriptome sequencing data of C. oleifera under drought treatments. A total of 20,674 differentially expressed genes (DEGs) were identified under drought stress, with the number of DEGs increasing with the duration of drought. Specifically, 11,793 and 18,046 DEGs were detected after 8 and 15 days of drought treatment, respectively, including numerous upregulated and downregulated genes. Gene Ontology (GO) enrichment analysis showed that the DEGs were primarily involved in various biological processes. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis revealed that carbon metabolism, glyoxylate and dicarboxylate metabolism, proteasome, glycine, serine, and threonine metabolism were the main affected pathways. Among the DEGs, 376 protein kinases, 42 proteases, 168 transcription factor (TF) genes, and 152 other potential functional genes were identified, which may play significant roles in the drought response of C. oleifera. The expression of relevant functional genes was further validated using quantitative real-time PCR (qRT-PCR). These findings contribute to the comprehension of drought tolerance mechanisms in C. oleifera and bolster the identification of drought-resistant genes for molecular breeding purposes.
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Affiliation(s)
- Zhen Zhang
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Yanming Xu
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Caixia Liu
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Longsheng Chen
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Ying Zhang
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Zhilong He
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Rui Wang
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Chengfeng Xun
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Yushen Ma
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Xiaokang Yuan
- Hunan Key Laboratory of Meteorological Disaster Prevention and Reduction, Hunan Research Institute of Meteorological Sciences, Changsha 410000, China;
| | - Xiangnan Wang
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Yongzhong Chen
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
| | - Xiaohu Yang
- Hunan Academy of Forestry, Changsha 410000, China; (Z.Z.); (Y.X.); (C.L.); (L.C.); (Y.Z.); (Z.H.); (R.W.); (C.X.); (Y.M.); (X.W.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410000, China
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Luo C, Li Z, Shi Y, Gao Y, Xu Y, Zhang Y, Chu H. Arbuscular mycorrhizal fungi enhance drought resistance in Bombax ceiba by regulating SOD family genes. PeerJ 2024; 12:e17849. [PMID: 39131625 PMCID: PMC11316461 DOI: 10.7717/peerj.17849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 07/10/2024] [Indexed: 08/13/2024] Open
Abstract
The physiological activity facilitated by arbuscular mycorrhizal fungi (AMF) contributes to plants' ability to tolerate drought. Nevertheless, it is unclear if AMF colonization affects the expression of genes in the host plant that encode antioxidant enzymes in the superoxide dismutase (SOD) family, which help alleviate drought stress in plants. Here, we conducted a pot trial to determine whether colonization by the AMF Rhizophagus irregularis improves drought resistance in Bombax ceiba. We comprehensively analyzed the SOD gene family and evaluated genome-wide expression patterns of SODs and SOD activity in AMF-colonized and non-mycorrhizal plants under simulated drought. We identified a total of 13 SODs in the genome of B. ceiba, including three FeSODs (BcFSDs), three MnSODs (BcMSDs), and seven Cu/ZnSODs (BcCSDs). Phylogenetic analysis based on binding domain revealed that SOD genes from B. ceiba and various other plant species can be divided into three separate groups, showing significant bootstrap values. Our examination of gene composition and patterns suggests that most BcSOD genes in these three subgroups are significantly conserved. Additionally, it was noted that hormones and stress-responsive cis-regulatory elements were found in all BcSOD promoters. Expression profiling by qRT-PCR demonstrated that AMF increased relative expression levels of Cu/Zn-SODs in both roots and shoots under drought stress, except for BcCSD3 in roots. Furthermore, AMF colonization increased the relative expression of BcMSD1a and BcMSD1b in roots, augmenting SOD activities and increasing ROS scavenging during drought. In general, this work offers molecular evidence in support of the beneficial effect of AMF colonization on drought tolerance in B. ceiba. It also elucidates the expression patterns of SOD genes, which will support efforts to optimize mycorrhizal seedling cultivation under stressful conditions.
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Affiliation(s)
- Changxin Luo
- College of Biological Resource and Food Engineering, Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing, Yunnan, China
| | - Zhumei Li
- College of Biological Resource and Food Engineering, Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing, Yunnan, China
| | - Yumei Shi
- College of Biological Resource and Food Engineering, Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing, Yunnan, China
| | - Yong Gao
- College of Biological Resource and Food Engineering, Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing, Yunnan, China
| | - Yanguo Xu
- College of Biological Resource and Food Engineering, Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing, Yunnan, China
| | - Yanan Zhang
- College of Biological Resource and Food Engineering, Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing, Yunnan, China
| | - Honglong Chu
- College of Biological Resource and Food Engineering, Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing, Yunnan, China
- Qujing Normal University, Key Laboratory of Yunnan Provincial Department of Education of the Deep-Time Evolution on Biodiversity from the Origin of the Pearl River, Qujing, Yunnan, China
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Wu W, Jiang C, Wei Q, He L, Jin G, Zheng Y, Qi J, Zhang R, Yao Y, Wan D, Lv J. Comparative transcriptome provides new insights into the molecular regulation of olive trees to chilling stress. TREE PHYSIOLOGY 2024; 44:tpae075. [PMID: 38965676 DOI: 10.1093/treephys/tpae075] [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: 03/04/2024] [Revised: 06/06/2024] [Accepted: 07/03/2024] [Indexed: 07/06/2024]
Abstract
Olive (Olea europaea L.), an economically important oil-producing crop, is sensitive to low temperature, which severely limits its productivity and geographical distribution. However, the underlying mechanism of cold tolerance in olive remains elusive. In this study, a chilling experiment (4 °C) on the living saplings of two olive cultivars revealed that O. europaea cv. Arbequina showed stronger cold tolerance with greater photosynthetic activity compared with O. europaea cv. Leccino. Transcriptome analyses revealed that early light-inducible protein 1 (ELIP1), the main regulator for chlorophyll synthesis, is dramatically induced to protect the photosynthesis at low temperatures. Furthermore, weighted gene co-expression network analysis, yeast one-hybrid and luciferase assays demonstrated that transcription factor bHLH66 serves as an important regulator of ELIP1 transcription by binding to the G-box motif in the promoter. Taken together, our research revealed a novel transcriptional module consisting of bHLH66-ELIP1 in the adaptation of olive trees to cold stress.
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Affiliation(s)
- Wenjun Wu
- Gansu Research Academy of Forestry Science and Technology, Duanjiatan Street, Lanzhou 730020, China
| | - Chengying Jiang
- Gansu Research Academy of Forestry Science and Technology, Duanjiatan Street, Lanzhou 730020, China
| | - Qianqian Wei
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Tianshui South Road, Lanzhou 730000, China
| | - Ling He
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Tianshui South Road, Lanzhou 730000, China
| | - Gaoming Jin
- Gansu Research Academy of Forestry Science and Technology, Duanjiatan Street, Lanzhou 730020, China
| | - Yuming Zheng
- Gansu Research Academy of Forestry Science and Technology, Duanjiatan Street, Lanzhou 730020, China
| | - Jianli Qi
- Gansu Research Academy of Forestry Science and Technology, Duanjiatan Street, Lanzhou 730020, China
| | - Rong Zhang
- Gansu Research Academy of Forestry Science and Technology, Duanjiatan Street, Lanzhou 730020, China
| | - Yufang Yao
- Gansu Research Academy of Forestry Science and Technology, Duanjiatan Street, Lanzhou 730020, China
| | - Dongshi Wan
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Tianshui South Road, Lanzhou 730000, China
- College of Horticulture, Gansu Agricultural University, Yintan Road, 730070 Lanzhou, China
| | - Jiaojiao Lv
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Tianshui South Road, Lanzhou 730000, China
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Yu X, Niu H, Liu C, Wang H, Yin W, Xia X. PTI-ETI synergistic signal mechanisms in plant immunity. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:2113-2128. [PMID: 38470397 PMCID: PMC11258992 DOI: 10.1111/pbi.14332] [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: 06/19/2023] [Revised: 02/16/2024] [Accepted: 02/28/2024] [Indexed: 03/13/2024]
Abstract
Plants face a relentless onslaught from a diverse array of pathogens in their natural environment, to which they have evolved a myriad of strategies that unfold across various temporal scales. Cell surface pattern recognition receptors (PRRs) detect conserved elicitors from pathogens or endogenous molecules released during pathogen invasion, initiating the first line of defence in plants, known as pattern-triggered immunity (PTI), which imparts a baseline level of disease resistance. Inside host cells, pathogen effectors are sensed by the nucleotide-binding/leucine-rich repeat (NLR) receptors, which then activate the second line of defence: effector-triggered immunity (ETI), offering a more potent and enduring defence mechanism. Moreover, PTI and ETI collaborate synergistically to bolster disease resistance and collectively trigger a cascade of downstream defence responses. This article provides a comprehensive review of plant defence responses, offering an overview of the stepwise activation of plant immunity and the interactions between PTI-ETI synergistic signal transduction.
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Affiliation(s)
- Xiao‐Qian Yu
- State Key Laboratory of Tree Genetics and BreedingCollege of Biological Sciences and Technology, College of Biological Sciences and Technology, Beijing Forestry UniversityBeijingChina
| | - Hao‐Qiang Niu
- State Key Laboratory of Tree Genetics and BreedingCollege of Biological Sciences and Technology, College of Biological Sciences and Technology, Beijing Forestry UniversityBeijingChina
| | - Chao Liu
- State Key Laboratory of Tree Genetics and BreedingCollege of Biological Sciences and Technology, College of Biological Sciences and Technology, Beijing Forestry UniversityBeijingChina
| | - Hou‐Ling Wang
- State Key Laboratory of Tree Genetics and BreedingCollege of Biological Sciences and Technology, College of Biological Sciences and Technology, Beijing Forestry UniversityBeijingChina
| | - Weilun Yin
- State Key Laboratory of Tree Genetics and BreedingCollege of Biological Sciences and Technology, College of Biological Sciences and Technology, Beijing Forestry UniversityBeijingChina
| | - Xinli Xia
- State Key Laboratory of Tree Genetics and BreedingCollege of Biological Sciences and Technology, College of Biological Sciences and Technology, Beijing Forestry UniversityBeijingChina
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Myers RJ, Peláez-Vico MÁ, Fichman Y. Functional analysis of reactive oxygen species-driven stress systemic signalling, interplay and acclimation. PLANT, CELL & ENVIRONMENT 2024; 47:2842-2851. [PMID: 38515255 DOI: 10.1111/pce.14894] [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: 10/31/2023] [Revised: 02/13/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
Reactive oxygen species (ROS) play a critical role in plant development and stress responses, acting as key components in rapid signalling pathways. The 'ROS wave' triggers essential acclimation processes, ultimately ensuring plant survival under diverse challenges. This review explores recent advances in understanding the composition and functionality of the ROS wave within plant cells. During their initiation and propagation, ROS waves interact with other rapid signalling pathways, hormones and various molecular compounds. Recent research sheds light on the intriguing lack of a rigid hierarchy governing these interactions, highlighting a complex interplay between diverse signals. Notably, ROS waves culminate in systemic acclimation, a crucial outcome for enhanced stress tolerance. This review emphasizes the versatility of ROS, which act as flexible players within a network of short- and long-term factors contributing to plant stress resilience. Unveiling the intricacies of these interactions between ROS and various signalling molecules holds immense potential for developing strategies to augment plant stress tolerance, contributing to improved agricultural practices and overall ecosystem well-being.
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Affiliation(s)
- Ronald J Myers
- Division of Plant Sciences and Technology, College of Agriculture Food and Natural Resources and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - María Ángeles Peláez-Vico
- Division of Plant Sciences and Technology, College of Agriculture Food and Natural Resources and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Yosef Fichman
- Division of Plant Sciences and Technology, College of Agriculture Food and Natural Resources and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- School of Plant Sciences and Food Security, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
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Hong CY, Yun JH, Kim GH. Ca 2+-mediated reactive oxygen species signaling regulates cell repair after mechanical wounding in the red alga Griffithsia monilis. JOURNAL OF PHYCOLOGY 2024; 60:853-870. [PMID: 38935837 DOI: 10.1111/jpy.13476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/23/2024] [Accepted: 04/23/2024] [Indexed: 06/29/2024]
Abstract
Mechanical damage to a cell can be fatal, and the cell must reseal its membrane and restore homeostasis to survive. Plant cell repair involves additional steps such as rebuilding vacuoles, rearranging chloroplasts, and remodeling the cell wall. When we pierced a Griffithsia monilis cell with a glass needle, a large amount of intracellular contents was released, but the cell membrane resealed in less than a second. The turgor of the vacuole was quickly restored, and the punctured cell returned to its original shape within an hour. Organelles such as chloroplasts and nuclei migrated to the wound site for 12 h and then dispersed throughout the cell after the wound was covered by a new cell wall. Using fluorescent probes, high levels of reactive oxygen species (ROS) and calcium were detected at the wound site from 3 h after wounding, which disappeared when cell repair was complete. Wounding in a solution containing ROS scavengers inhibited cellular repair, and inhibiting nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity or blocking calcium influx reversibly inhibited cell repair. Oryzalin reversibly inhibited both chloroplast movement and ROS production during cell repair. Our results show that cell repair in G. monilis is regulated by calcium-mediated ROS signaling and that microtubules serve as mechanical effectors.
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Affiliation(s)
- Chan Young Hong
- Department of Biological Sciences, Kongju National University, Gongju, Korea
| | - Ji Ho Yun
- Department of Biological Sciences, Kongju National University, Gongju, Korea
| | - Gwang Hoon Kim
- Department of Biological Sciences, Kongju National University, Gongju, Korea
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Mittler R, Jones DP. The redox code of plants. PLANT, CELL & ENVIRONMENT 2024; 47:2821-2829. [PMID: 38088476 DOI: 10.1111/pce.14787] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 07/12/2024]
Abstract
Central metabolism is organised through high-flux, Nicotinamide Adenine Dinucleotide (NAD+/NADH) and NADP+/NADPH systems operating at near equilibrium. As oxygen is indispensable for aerobic organisms, these systems are also linked to the levels of reactive oxygen species, such as H2O2, and through H2O2 to the regulation of macromolecular structures and activities, via kinetically controlled sulphur switches in the redox proteome. Dynamic changes in H2O2 production, scavenging and transport, associated with development, growth and responses to the environment are, therefore, linked to the redox state of the cell and regulate cellular function. These basic principles form the 'redox code' of cells and were first defined by D. P. Jones and H. Sies in 2015. Here, we apply these principles to plants in which recent studies have shown that they can also explain cell-to-cell and even plant-to-plant signalling processes. The redox code is, therefore, an integral part of biological systems and can be used to explain multiple processes in plants at the subcellular, cellular, tissue, whole organism and perhaps even community and ecosystem levels. As the environmental conditions on our planet are worsening due to global warming, climate change and increased pollution levels, new studies are needed applying the redox code of plants to these changes.
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Affiliation(s)
- Ron Mittler
- Division of Plant Science and Technology, College of Agriculture Food and Natural Resources and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri, USA
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Dean P Jones
- Department of Medicine, Emory University, Atlanta, Georgia, USA
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Hatami M, Ghorbanpour M. Metal and metal oxide nanoparticles-induced reactive oxygen species: Phytotoxicity and detoxification mechanisms in plant cell. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 213:108847. [PMID: 38889532 DOI: 10.1016/j.plaphy.2024.108847] [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: 03/22/2024] [Revised: 05/17/2024] [Accepted: 06/15/2024] [Indexed: 06/20/2024]
Abstract
Nanotechnology is advancing rapidly in this century and the industrial use of nanoparticles for new applications in the modernization of different industries such as agriculture, electronic, food, energy, environment, healthcare and medicine is growing exponentially. Despite applications of several nanoparticles in different industries, they show harmful effects on biological systems, especially in plants. Various mechanisms for the toxic effects of nanoparticles have already been proposed; however, elevated levels of reactive oxygen species (ROS) molecules including radicals [(e.g., superoxide (O2•‒), peroxyl (HOO•), and hydroxyl (HO•) and non-radicals [(e.g., hydrogen peroxide (H2O2) and singlet oxygen (1O2) is more important. Excessive production/and accumulation of ROS in cells and subsequent induction of oxidative stress disrupts the normal functioning of physiological processes and cellular redox reactions. Some of the consequences of ROS overproduction include peroxidation of lipids, changes in protein structure, DNA strand breaks, mitochondrial damage, and cell death. Key enzymatic antioxidants with ROS scavenging ability comprised of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), peroxidase (POD), and glutathione reductase (GR), and non-enzymatic antioxidant systems including alpha-tocopherol, flavonoids, phenolic compounds, carotenoids, ascorbate, and glutathione play vital role in detoxification and maintaining plant health by balancing redox reactions and reducing the level of ROS. This review provides compelling evidence that phytotoxicity of nanoparticles, is mainly caused by overproduction of ROS after exposure. In addition, the present review also summarizes the intrinsic detoxification mechanisms in plants in response to nanoparticles accumulation within plant cells.
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Affiliation(s)
- Mehrnaz Hatami
- Department of Medicinal Plants, Faculty of Agriculture and Natural Resources, Arak University, Arak, 38156-8-8349, Iran
| | - Mansour Ghorbanpour
- Department of Medicinal Plants, Faculty of Agriculture and Natural Resources, Arak University, Arak, 38156-8-8349, Iran; Institute of Nanoscience and Nanotechnology, Arak University, 38156-8-8349, Arak, Iran.
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Hoh D, Froehlich JE, Kramer DM. Redox regulation in chloroplast thylakoid lumen: The pmf changes everything, again. PLANT, CELL & ENVIRONMENT 2024; 47:2749-2765. [PMID: 38111217 DOI: 10.1111/pce.14789] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 12/20/2023]
Abstract
Photosynthesis is the foundation of life on Earth. However, if not well regulated, it can also generate excessive reactive oxygen species (ROS), which can cause photodamage. Regulation of photosynthesis is highly dynamic, responding to both environmental and metabolic cues, and occurs at many levels, from light capture to energy storage and metabolic processes. One general mechanism of regulation involves the reversible oxidation and reduction of protein thiol groups, which can affect the activity of enzymes and the stability of proteins. Such redox regulation has been well studied in stromal enzymes, but more recently, evidence has emerged of redox control of thylakoid lumenal enzymes. This review/hypothesis paper summarizes the latest research and discusses several open questions and challenges to achieving effective redox control in the lumen, focusing on the distinct environments and regulatory components of the thylakoid lumen, including the need to transport electrons across the thylakoid membrane, the effects of pH changes by the proton motive force (pmf) in the stromal and lumenal compartments, and the observed differences in redox states. These constraints suggest that activated oxygen species are likely to be major regulatory contributors to lumenal thiol redox regulation, with key components and processes yet to be discovered.
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Affiliation(s)
- Donghee Hoh
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, Michigan, USA
| | - John E Froehlich
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, Michigan, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan, USA
| | - David M Kramer
- MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, Michigan, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan, USA
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Singh VP, Jaiswal S, Wang Y, Feng S, Tripathi DK, Singh S, Gupta R, Xue D, Xu S, Chen ZH. Evolution of reactive oxygen species cellular targets for plant development. TRENDS IN PLANT SCIENCE 2024; 29:865-877. [PMID: 38519324 DOI: 10.1016/j.tplants.2024.03.005] [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: 11/24/2023] [Revised: 02/25/2024] [Accepted: 03/06/2024] [Indexed: 03/24/2024]
Abstract
Reactive oxygen species (ROS) are the key players in regulating developmental processes of plants. Plants have evolved a large array of gene families to facilitate the ROS-regulated developmental process in roots and leaves. However, the cellular targets of ROS during plant evolutionary development are still elusive. Here, we found early evolution and large expansions of protein families such as mitogen-activated protein kinases (MAPK) in the evolutionarily important plant lineages. We review the recent advances in interactions among ROS, phytohormones, gasotransmitters, and protein kinases. We propose that these signaling molecules act in concert to maintain cellular ROS homeostasis in developmental processes of root and leaf to ensure the fine-tuning of plant growth for better adaptation to the changing climate.
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Affiliation(s)
- Vijay Pratap Singh
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj-211002, India.
| | - Saumya Jaiswal
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj-211002, India
| | - Yuanyuan Wang
- School of Science, Western Sydney University, Penrith, NSW 2751, Australia
| | - Shouli Feng
- Xianghu Laboratory, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Durgesh Kumar Tripathi
- Crop Nanobiology and Molecular Stress Physiology Lab, Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Sector-125, Noida 201313, India
| | - Samiksha Singh
- Department of Botany, S.N. Sen B.V. Post Graduate College, Chhatrapati Shahu Ji Maharaj University, Kanpur 208001, India
| | - Ravi Gupta
- College of General Education, Kookmin University, Seoul 02707, South Korea
| | - Dawei Xue
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310018, China
| | - Shengchun Xu
- Xianghu Laboratory, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
| | - Zhong-Hua Chen
- School of Science, Western Sydney University, Penrith, NSW 2751, Australia.
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Alazem M, Burch-Smith TM. Roles of ROS and redox in regulating cell-to-cell communication: Spotlight on viral modulation of redox for local spread. PLANT, CELL & ENVIRONMENT 2024; 47:2830-2841. [PMID: 38168864 DOI: 10.1111/pce.14805] [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: 11/10/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024]
Abstract
Reactive oxygen species (ROS) are important signalling molecules that influence many aspects of plant biology. One way in which ROS influence plant growth and development is by modifying intercellular trafficking through plasmodesmata (PD). Viruses have evolved to use PD for their local cell-to-cell spread between plant cells, so it is therefore not surprising that they have found ways to modulate ROS and redox signalling to optimise PD function for their benefit. This review examines how intracellular signalling via ROS and redox pathways regulate intercellular trafficking via PD during development and stress. The relationship between viruses and ROS-redox systems, and the strategies viruses employ to control PD function by interfering with ROS-redox in plants is also discussed.
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Affiliation(s)
- Mazen Alazem
- Donald Danforth Plant Science Center, Saint Louis, Missouri, USA
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50
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Yin X, Feng L, Hua Q, Ye J, Cai L. Progress in the study of mechanisms and pathways related to the survival of random skin flaps. Updates Surg 2024; 76:1195-1202. [PMID: 38308185 DOI: 10.1007/s13304-023-01746-7] [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: 11/21/2023] [Accepted: 12/29/2023] [Indexed: 02/04/2024]
Abstract
The clinical application of random flaps in wound repair has been a topic of discussion. Random flaps are prone to necrosis due to the lack of well-defined vascular blood supply during transfer surgery. Their clinical utility is restricted, financial and psychological burdens is imposed on patients due to this limitation. The survival of random skin flaps depends on factors such as ischemia-reperfusion injury, oxidative stress, local inflammatory response, and neovascularization. This review aims to provide an overview of the evidence supporting the use of random flaps in clinical practice. In addition, this review explores the impact of different medications on signaling pathways within the flap's local microcirculation and investigates the interconnections between these pathways.
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Affiliation(s)
- Xinghao Yin
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Liang Feng
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Qianqian Hua
- The First School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jiangtian Ye
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Leyi Cai
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China.
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, No. 109, XueYuan West Road, Luheng District, Wenzhou, Zhejiang, 325000, People's Republic of China.
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