1
|
Xiao L, Hu Y, Wang Y, Lv C, Zhan N, Duan H, Su J. Hydrogen gas enhances Arabidopsis salt tolerance by modulating hydrogen peroxide-mediated redox and ion homeostasis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 352:112356. [PMID: 39653253 DOI: 10.1016/j.plantsci.2024.112356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2024] [Revised: 11/21/2024] [Accepted: 12/06/2024] [Indexed: 12/15/2024]
Abstract
Hydrogen gas (H2) plays a crucial role in mitigating salt stress in plants, but the underlying mechanisms is largely unknown. Herein, we employed the pharmacological, molecular, and genetic approaches to investigate the positive roles of hydrogen peroxide (H2O2) in endogenous H2-induced salt tolerance of Arabidopsis thaliana. H2-induecd salt tolerance of CrHYD1 (hydrogenase 1 gene from Chlamydomonas reinhardtii) transgenic Arabidopsis was blocked by H2O2 scavenger or NADPH oxidase inhibitor. When RESPIRATORY BURST OXIDASE HOMOLOG (RBOH) genes (AtrbohD or AtrbohF) were mutated, salt sensitivity of CrHYD1/atrboh (especially CrHYD1/atrbohD) hybrids was increased, but diminished by exogenous H2O2 administration. Salt-stimulated endogenous H2 enrichment consequently resulted in the rapid reactive oxygen species (ROS) accumulation under early salt stress, and the expression of AtrbohD (especially) and AtrbohF in CrHYD1 plants was higher than those in the wild-type (WT), suggesting that endogenous H2 could induce Atrboh-dependent ROS burst to respond salt stress. Further, H2-induced less 3,3'-diaminobenzidine (DAB) and nitro blue tetrazolium (NBT) stain in CrHYD1 plants was reversed under salt stress when either H2O2 was removed or Atrbohs were mutated, which could be explained by higher H2O2 and thiobarbituric acid reactive substances (TBARS) levels, as well as lower antioxidant enzyme activity. Additionally, H2-induced Na+ discharge and K+ accumulation in CrHYD1 plants under salt stress were blocked by either H2O2 removal or Atrboh knockout, which was validated by higher Na+/K+ ratios and lower ion transport-related gene expression. Our findings not only elucidate that endogenous H2 enhanced Arabidopsis salt tolerance by reestablishing H2O2-dependent ion and redox homeostasis, but provide new insights into the mechanisms of plant salinity responses.
Collapse
Affiliation(s)
- Linlin Xiao
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China; The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province, Xinxiang 453007, China
| | - Yueran Hu
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Yiting Wang
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Chengsi Lv
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Na Zhan
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Hongying Duan
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China; The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province, Xinxiang 453007, China
| | - Jiuchang Su
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, College of Life Sciences, Henan Normal University, Xinxiang 453007, China; The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province, Xinxiang 453007, China.
| |
Collapse
|
2
|
Zhang Y, Liu Z, Huang H, Li L, Xu S, Shen W. Molecular hydrogen positively influences root gravitropism involving auxin signaling and starch accumulation. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 120:2874-2888. [PMID: 39559980 DOI: 10.1111/tpj.17151] [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: 02/15/2024] [Revised: 09/23/2024] [Accepted: 11/05/2024] [Indexed: 11/20/2024]
Abstract
Although geoscience of natural hydrogen (H2), hydrogen-producing soil bacteria, and especially plant-based H2, has been observed, it is not clear whether or how above H2 resources influence root gravitropic responses. Here, pharmacological, genetic, molecular, and cell biological tools were applied to investigate how plant-based H2 coordinates gravity responses in Arabidopsis roots. Since roots show higher H2 production than shoots, exogenous H2 supply was used to mimic this function. After H2 supplementation, the asymmetric expression of the auxin-response reporter DR5 driven by auxin influx and efflux carriers, and thereafter positive root gravitropism were observed. These positive responses in root gravitropism were sensitive to auxin polar transport inhibitors, and importantly, the defective phenotypes observed in aux1-7, pin1, and pin2 mutants were not significantly altered by exogenous H2. The observed starch accumulation was matched with the reprogramming gene expression linked to starch synthesis and degradation. Transgenic plants expressing hydrogenase1 (CrHYD1) from Chlamydomonas reinhardtii not only displayed higher endogenous H2 concentrations, the inducible AUX1 gene expression and starch accumulation, but also showed pronounced root gravitropism. Collectively, above evidence preliminarily provides a framework for understanding the molecular basis of the possible functions of both plant/soil-based and nature H2 in root architecture.
Collapse
Affiliation(s)
- Yingying Zhang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ziyu Liu
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Huize Huang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Sheng Xu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| |
Collapse
|
3
|
Zhang Y, Cheng P, Wang Y, Lu X, Yao W, Li L, Jiang K, Shen W. The activation of autophagy by molecular hydrogen is functionally associated with osmotic tolerance in Arabidopsis. Free Radic Biol Med 2024; 225:63-74. [PMID: 39341299 DOI: 10.1016/j.freeradbiomed.2024.09.043] [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: 08/19/2024] [Revised: 09/23/2024] [Accepted: 09/24/2024] [Indexed: 10/01/2024]
Abstract
The role of molecular hydrogen (H2) in autophagy during inflammatory response is controversial in mammalian cells. Although the stimulation of H2 production in response to osmotic stress was observed in plants, its synthetic pathway and the interrelationship between its induction and plant autophagy remain unclear. Here, the induction of autophagy was observed in Arabidopsis upon osmotic stress, assessing by the autophagosome formation and autophagy-related genes expression. Above responses were intensified by H2 fumigation. Meanwhile, the reduction in seedling growth and roots vigor was obviously abolished, accompanied by reestablishing redox balance. These H2 responses were markedly impaired in T-DNA knockout lines atg2, atg5, and atg18. Further evidence showed that the increased endogenous H2 synthesis by genetic manipulation, not only stimulated autophagosome formation, but also triggered various plant responses toward osmotic stress. By contrast, these responses were obviously abolished by the disruption of endogenous H2 synthesis with the addition of 2,6-dichloroindophenol sodium salt. Together, the integrated genetic and molecular evidence clearly illustrated the requirement of autophagy activation in H2 control of plant osmotic tolerance.
Collapse
Affiliation(s)
- Yihua Zhang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China; College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China
| | - Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xing Lu
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China
| | - Wenrong Yao
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China
| | - Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ke Jiang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| |
Collapse
|
4
|
Zhang Y, Lu X, Yao W, Cheng X, Wang Q, Feng Y, Shen W. Magnesium Hydride Confers Osmotic Tolerance in Mung Bean Seedlings by Promoting Ascorbate-Glutathione Cycle. PLANTS (BASEL, SWITZERLAND) 2024; 13:2819. [PMID: 39409689 PMCID: PMC11478981 DOI: 10.3390/plants13192819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 10/02/2024] [Accepted: 10/06/2024] [Indexed: 10/20/2024]
Abstract
Despite substantial evidence suggesting that hydrogen gas (H2) can enhance osmotic tolerance in plants, the conventional supply method of hydrogen-rich water (HRW) poses challenges for large-scale agricultural applications. Recently, magnesium hydride (MgH2), a hydrogen storage material in industry, has been reported to yield beneficial effects in plants. This study aimed to investigate the effects and underlying mechanisms of MgH2 in plants under osmotic stress. Mung bean seedlings were cultured under control conditions or with 20% polyethylene glycol (PEG)-6000, with or without MgH2 addition (0.01 g L-1). Under our experimental conditions, the MgH2 solution maintained a higher H2 content and longer retention time than HRW. Importantly, PEG-stimulated endogenous H2 production was further triggered by MgH2 application. Further results revealed that MgH2 significantly alleviated the inhibition of seedling growth and reduced oxidative damage induced by osmotic stress. Pharmacological evidence suggests the MgH2-reestablished redox homeostasis was associated with activated antioxidant systems, particularly the ascorbate-glutathione cycle. The above observations were further supported by the enhanced activities and gene transcriptional levels of ascorbate peroxidase, monodehydroascorbate reductase, dehydroascorbate reductase, and glutathione reductase. Overall, this study demonstrates the importance of MgH2 in mitigating osmotic stress in mung bean seedlings, providing novel insights into the potential agricultural applications of hydrogen storage materials.
Collapse
Affiliation(s)
- Yihua Zhang
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, China; (X.L.); (W.Y.); (X.C.); (Q.W.); (Y.F.)
| | - Xing Lu
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, China; (X.L.); (W.Y.); (X.C.); (Q.W.); (Y.F.)
| | - Wenrong Yao
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, China; (X.L.); (W.Y.); (X.C.); (Q.W.); (Y.F.)
| | - Xiaoqing Cheng
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, China; (X.L.); (W.Y.); (X.C.); (Q.W.); (Y.F.)
| | - Qiao Wang
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, China; (X.L.); (W.Y.); (X.C.); (Q.W.); (Y.F.)
| | - Yu Feng
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, China; (X.L.); (W.Y.); (X.C.); (Q.W.); (Y.F.)
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;
| |
Collapse
|
5
|
Bajwa NA, Bajwa AA, Ghazala S, Masood U. Dimethyl Fumarate-Associated Enterocolitis. Am J Ther 2024; 31:e448-e450. [PMID: 38525954 DOI: 10.1097/mjt.0000000000001660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Affiliation(s)
- Numra A Bajwa
- Department of Internal Medicine, University at Buffalo Catholic Health, Buffalo, NY
| | - Azka A Bajwa
- Department of Obstetrics and Gynecology, Central Military Hospital, Lahore, Punjab, Pakistan
| | - Seham Ghazala
- Department of Gastroenterology, University at Buffalo Catholic Health, Buffalo, NY
| | - Umair Masood
- Department of Gastroenterology, University at Buffalo Catholic Health, Buffalo, NY
| |
Collapse
|
6
|
Li L, Huang H, Jin Z, Jiang K, Zeng Y, Pathier D, Cheng X, Shen W. Strawberry Yield Improvement by Hydrogen-Based Irrigation Is Functionally Linked to Altered Rhizosphere Microbial Communities. PLANTS (BASEL, SWITZERLAND) 2024; 13:1723. [PMID: 38999563 PMCID: PMC11243525 DOI: 10.3390/plants13131723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/10/2024] [Accepted: 06/17/2024] [Indexed: 07/14/2024]
Abstract
Molecular hydrogen (H2) is crucial for agricultural microbial systems. However, the mechanisms underlying its influence on crop yields is yet to be fully elucidated. This study observed that H2-based irrigation significantly increased strawberry (Fragaria × ananassa Duch.) yield with/without nutrient fertilization. The reduction in soil available nitrogen (N), phosphorus (P), potassium (K), and organic matter was consistent with the increased expression levels of N/P/K-absorption-related genes in root tissues at the fruiting stage. Metagenomics profiling showed the alterations in rhizosphere microbial community composition achieved by H2, particularly under the conditions without fertilizers. These included the enrichment of plant-growth-promoting rhizobacteria, such as Burkholderia, Pseudomonas, and Cupriavidus genera. Rhizobacteria with the capability to oxidize H2 (group 2a [NiFe] hydrogenase) were also enriched. Consistently, genes related to soil carbon (C) fixation (i.e., rbcL, porD, frdAB, etc.), dissimilar nitrate reduction (i.e., napAB and nrfAH), and P solublization, mineralization, and transportation (i.e., ppx-gppA, appA, and ugpABCE) exhibited higher abundance. Contrary tendencies were observed in the soil C degradation and N denitrification genes. Together, these results clearly indicate that microbe-mediated soil C, N, and P cycles might be functionally altered by H2, thus increasing plant nutrient uptake capacity and horticultural crop yield.
Collapse
Affiliation(s)
- Longna Li
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.L.); (H.H.); (Z.J.); (K.J.)
| | - Huize Huang
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.L.); (H.H.); (Z.J.); (K.J.)
| | - Zhiwei Jin
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.L.); (H.H.); (Z.J.); (K.J.)
| | - Ke Jiang
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.L.); (H.H.); (Z.J.); (K.J.)
| | - Yan Zeng
- Air Liquide (China) R&D Co., Ltd., Shanghai 201108, China; (Y.Z.); (D.P.); (X.C.)
| | - Didier Pathier
- Air Liquide (China) R&D Co., Ltd., Shanghai 201108, China; (Y.Z.); (D.P.); (X.C.)
| | - Xu Cheng
- Air Liquide (China) R&D Co., Ltd., Shanghai 201108, China; (Y.Z.); (D.P.); (X.C.)
| | - Wenbiao Shen
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (L.L.); (H.H.); (Z.J.); (K.J.)
| |
Collapse
|
7
|
Wang Y, Jin S, Liu Z, Chen G, Cheng P, Li L, Xu S, Shen W. H2 supplied via ammonia borane stimulates lateral root branching via phytomelatonin signaling. PLANT PHYSIOLOGY 2024; 194:884-901. [PMID: 37944026 DOI: 10.1093/plphys/kiad595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/17/2023] [Accepted: 10/17/2023] [Indexed: 11/12/2023]
Abstract
A reliable and stable hydrogen gas (H2) supply will benefit agricultural laboratory and field trials. Here, we assessed ammonia borane (AB), an efficient hydrogen storage material used in the energy industry, and determined its effect on plant physiology and the corresponding mechanism. Through hydroponics and pot experiments, we discovered that AB increases tomato (Solanum lycopersicum) lateral root (LR) branching and this function depended on the increased endogenous H2 level caused by the sustainable H2 supply. In particular, AB might trigger LR primordia initiation. Transgenic tomato and Arabidopsis (Arabidopsis thaliana) expressing hydrogenase1 (CrHYD1) from Chlamydomonas reinhardtii not only accumulated higher endogenous H2 and phytomelatonin levels but also displayed pronounced LR branching. These endogenous H2 responses achieved by AB or genetic manipulation were sensitive to the pharmacological removal of phytomelatonin, indicating the downstream role of phytomelatonin in endogenous H2 control of LR formation. Consistently, extra H2 supply failed to influence the LR defective phenotypes in phytomelatonin synthetic mutants. Molecular evidence showed that the phytomelatonin-regulated auxin signaling network and cell-cycle regulation were associated with the AB/H2 control of LR branching. Also, AB and melatonin had little effect on LR branching in the presence of auxin synthetic inhibitors. Collectively, our integrated approaches show that supplying H2 via AB increases LR branching via phytomelatonin signaling. This finding might open the way for applying hydrogen storage materials to horticultural production.
Collapse
Affiliation(s)
- Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Shanshan Jin
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Ziyu Liu
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Genmei Chen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Sheng Xu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| |
Collapse
|
8
|
Cheng P, Wang Y, Cai C, Li L, Zeng Y, Cheng X, Shen W. Molecular hydrogen positively regulates nitrate uptake and seed size by targeting nitrate reductase. PLANT PHYSIOLOGY 2023; 193:2734-2749. [PMID: 37625793 DOI: 10.1093/plphys/kiad474] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/25/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023]
Abstract
Although the sources of molecular hydrogen (H2) synthesis in plants remain to be fully elucidated, ample evidence shows that plant-based H2 can regulate development and stress responses. Here, we present genetic and molecular evidence indicating that nitrate reductase (NR) might be a target of H2 sensing that positively regulates nitrogen use efficiency (NUE) and seed size in Arabidopsis (Arabidopsis thaliana). The expression level of NR and changes of NUE under control and, in particular, low nitrogen supply were positively associated with H2 addition supplied exogenously or through genetic manipulation. The improvement in nitrate assimilation achieved by H2 was also mediated via NR dephosphorylation. H2 control of seed size was impaired by NR mutation. Further genetic evidence revealed that H2, NR, and nitric oxide can synergistically regulate nitrate assimilation in response to N starvation conditions. Collectively, our data indicate that NR might be a target for H2 sensing, ultimately positively regulating nitrate uptake and seed size. These results provide insights into H2 signaling and its functions in plant metabolism.
Collapse
Affiliation(s)
- Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chenxu Cai
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yan Zeng
- Life Science Group, Air Liquide (China) R&D Co., Ltd., Shanghai 201108, China
| | - Xu Cheng
- Life Science Group, Air Liquide (China) R&D Co., Ltd., Shanghai 201108, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| |
Collapse
|
9
|
Shao Y, Lin F, Wang Y, Cheng P, Lou W, Wang Z, Liu Z, Chen D, Guo W, Lan Y, Du L, Zhou Y, Zhou T, Shen W. Molecular Hydrogen Confers Resistance to Rice Stripe Virus. Microbiol Spectr 2023; 11:e0441722. [PMID: 36840556 PMCID: PMC10100981 DOI: 10.1128/spectrum.04417-22] [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: 10/31/2022] [Accepted: 01/31/2023] [Indexed: 02/25/2023] Open
Abstract
Although molecular hydrogen (H2) has potential therapeutic effects in animals, whether or how this gas functions in plant disease resistance has not yet been elucidated. Here, after rice stripe virus (RSV) infection, H2 production was pronouncedly stimulated in Zhendao 88, a resistant rice variety, compared to that in a susceptible variety (Wuyujing No.3). External H2 supply remarkably reduced the disease symptoms and RSV coat protein (CP) levels, especially in Wuyujing No.3. The above responses were abolished by the pharmacological inhibition of H2 production. The transgenic Arabidopsis plants overexpressing a hydrogenase gene from Chlamydomonas reinhardtii also improved plant resistance. In the presence of H2, the transcription levels of salicylic acid (SA) synthetic genes were stimulated, and the activity of SA glucosyltransferases was suppressed, thus facilitating SA accumulation. Genetic evidence revealed that two SA synthetic mutants of Arabidopsis (sid2-2 and pad4) were more susceptible to RSV than the wild type (WT). The treatments with H2 failed to improve the resistance to RSV in two SA synthetic mutants. The above results indicated that H2 enhances rice resistance to RSV infection possibly through the SA-dependent pathway. This study might open a new window for applying the H2-based approach to improve plant disease resistance. IMPORTANCE Although molecular hydrogen has potential therapeutic effects in animals, whether or how this gas functions in plant disease resistance has not yet been elucidated. RSV was considered the most devastating plant virus in rice, since it could cause severe losses in field production. This disease was thus selected as a classical model to explore the interrelationship between molecular hydrogen and plant pathogen resistance. In this study, we discovered that both exogenous and endogenous H2 could enhance plant resistance against Rice stripe virus infection by regulating salicylic acid signaling. Compared with some frequently used agrochemicals, H2 is almost nontoxic. We hope that the findings presented here will serve as an opportunity for the scientific community to push hydrogen-based agriculture forward.
Collapse
Affiliation(s)
- Yudong Shao
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Feng Lin
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Wang Lou
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Zhaoyun Wang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Zhiyang Liu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Dongyue Chen
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Wei Guo
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Ying Lan
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Linlin Du
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Yijun Zhou
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Tong Zhou
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
10
|
Cheng P, Feng L, Zhang S, Li L, Guan R, Long W, Xian Z, Zhang J, Shen W. Ammonia borane positively regulates cold tolerance in Brassica napus via hydrogen sulfide signaling. BMC PLANT BIOLOGY 2022; 22:585. [PMID: 36517759 PMCID: PMC9749201 DOI: 10.1186/s12870-022-03973-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 12/01/2022] [Indexed: 05/16/2023]
Abstract
BACKGROUND Cold stress adversely influences rapeseeds (Brassica napus L.) growth and yield during winter and spring seasons. Hydrogen (H2) is a potential gasotransmitter that is used to enhance tolerance against abiotic stress, including cold stress. However, convenience and stability are two crucial limiting factors upon the application of H2 in field agriculture. To explore the application of H2 in field, here we evaluated the role of ammonia borane (AB), a new candidate for a H2 donor produced by industrial chemical production, in plant cold tolerance. RESULTS The application with AB could obviously alleviate the inhibition of rapeseed seedling growth and reduce the oxidative damage caused by cold stress. The above physiological process was closely related to the increased antioxidant enzyme system and reestablished redox homeostasis. Importantly, cold stress-triggered endogenous H2S biosynthesis was further stimulated by AB addition. The removal or inhibition of H2S synthesis significantly abolished plant tolerance against cold stress elicited by AB. Further field experiments demonstrated that the phenotypic and physiological performances of rapeseed plants after challenged with cold stress in the winter and early spring seasons were significantly improved by administration with AB. Particularly, the most studied cold-stress response pathway, the ICE1-CBF-COR transcriptional cascade, was significantly up-regulated either. CONCLUSION Overall, this study clearly observed the evidence that AB-increased tolerance against cold stress could be suitable for using in field agriculture by stimulation of H2S signaling.
Collapse
Affiliation(s)
- Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Liying Feng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Shuoyu Zhang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Rongzhan Guan
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Weihua Long
- The Institute of Industrial CropsJiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Zhihui Xian
- The Institute of Industrial CropsJiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Jiefu Zhang
- The Institute of Industrial CropsJiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
| |
Collapse
|
11
|
Liu F, Wang Y, Zhang G, Li L, Shen W. Molecular hydrogen positively influences lateral root formation by regulating hydrogen peroxide signaling. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 325:111500. [PMID: 36257409 DOI: 10.1016/j.plantsci.2022.111500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/01/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Although a previous study discovered that exogenous molecular hydrogen (H2) supplied with hydrogen-rich water (HRW) can mediate lateral root (LR) development, whether or how endogenous H2 influences LR formation is still elusive. In this report, mimicking the induction responses in tomato seedlings achieved by HRW or exogenous hydrogen peroxide (H2O2; a positive control), transgenic Arabidopsis that overexpressed the hydrogenase1 gene (CrHYD1) from Chlamydomonas reinhardtii not only stimulated endogenous hydrogen peroxide (H2O2) production, but also markedly promoted LR formation. Above H2 and H2O2 responses were abolished by the removal of endogenous H2O2. Moreover, the changes in transcriptional patterns of representative cell cycle genes and auxin signaling-related genes during LR development in both tomato and transgenic Arabidopsis thaliana matched with above phenotypes. The alternations in the levels of GUS transcripts driven by the CYCB1 promoter and expression of PIN1 protein further indicated that H2O2 synthesis was tightly linked to LR formation achieved by endogenous H2, and cell cycle regulation and auxin-dependent pathway might be their targets. There results might provide a reference for molecular mechanism underlying the regulation of root morphogenesis by H2.
Collapse
Affiliation(s)
- Feijie Liu
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Guhua Zhang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| |
Collapse
|
12
|
Yang Z, Wang X, Feng J, Zhu S. Biological Functions of Hydrogen Sulfide in Plants. Int J Mol Sci 2022; 23:ijms232315107. [PMID: 36499443 PMCID: PMC9736554 DOI: 10.3390/ijms232315107] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/27/2022] [Accepted: 11/27/2022] [Indexed: 12/05/2022] Open
Abstract
Hydrogen sulfide (H2S), which is a gasotransmitter, can be biosynthesized and participates in various physiological and biochemical processes in plants. H2S also positively affects plants' adaptation to abiotic stresses. Here, we summarize the specific ways in which H2S is endogenously synthesized and metabolized in plants, along with the agents and methods used for H2S research, and outline the progress of research on the regulation of H2S on plant metabolism and morphogenesis, abiotic stress tolerance, and the series of different post-translational modifications (PTMs) in which H2S is involved, to provide a reference for future research on the mechanism of H2S action.
Collapse
Affiliation(s)
- Zhifeng Yang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai’an 271018, China
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832000, China
| | - Xiaoyu Wang
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832000, China
| | - Jianrong Feng
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832000, China
| | - Shuhua Zhu
- College of Chemistry and Material Science, Shandong Agricultural University, Tai’an 271018, China
- Correspondence:
| |
Collapse
|
13
|
Hydrogen sulfide treatment improves quality attributes via regulating the antioxidant system in goji berry (Lycium barbarum L.). Food Chem 2022; 405:134858. [DOI: 10.1016/j.foodchem.2022.134858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022]
|
14
|
Wang W, Ni ZJ, Thakur K, Cao SQ, Wei ZJ. Recent update on the mechanism of hydrogen sulfide improving the preservation of postharvest fruits and vegetables. Curr Opin Food Sci 2022. [DOI: 10.1016/j.cofs.2022.100906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
15
|
Liu Y, Pan J, Ni S, Xing B, Cheng K, Peng X. Transcriptome and Metabonomics Combined Analysis Revealed the Defense Mechanism Involved in Hydrogen-Rich Water-Regulated Cold Stress Response of Tetrastigma hemsleyanum. FRONTIERS IN PLANT SCIENCE 2022; 13:889726. [PMID: 35812920 PMCID: PMC9260428 DOI: 10.3389/fpls.2022.889726] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
The poor resistance to cold stress conditions has become the bottleneck problem in Tetrastigma hemsleyanum (T. hemsleyanum) planting industry. Exogenous hydrogen (H2) plays an important role in improving stress resistance in plants. However, the key factors and regulatory network of plants in response to hydrogen-rich water (HRW) treatment under environmental stress are not clear. Here, we conducted integrative analyses of metabolome and transcriptome profiles to reveal the defense mechanism involved in the HRW-regulated cold stress response of T. hemsleyanum. The application of 75% HRW could alleviate stress damage by decreasing stomatal apparatus density and significantly increasing photosynthetic efficiency and mitigating physiological indexes of resistance, such as Pn, Cond, MDA, SOD, etc., which were changed by cold stress conditions. A total of 7,883 DEGs and 439 DEMs were identified. DEGs were the most relevant to phenylpropanoid, isoflavonoid, monoterpenoid, and flavonoid biosynthesis pathways. Using gene co-expression analysis (WGCNA), we identified one gene module that showed a strong correlation between total antioxidant capacity and transpiration rate. Trend analysis indicated that the phenylpropanoid biosynthesis pathway played a major role in the transcription and metabolism process of HRW treatment under cold stress. Based on the integrated analysis of genes and metabolites, the results showed cold stress upregulated the expression of PAL, CHS, COMT, CCR, AtBG1, etc., resulting in the accumulation of coniferyl alcohol and eriodictyol contents in T. hemsleyanum under cold stress, but the 75% HRW treatment could attenuate the enhancement. The study not only identified the main strategy of HRW protection against cold stress but also provided candidate genes for flavonoid biosynthesis, so as to better improve cold tolerance through molecular breeding techniques.
Collapse
Affiliation(s)
- Yuxiu Liu
- Ningbo Municipal Hospital of TCM, Affiliated Hospital of Zhejiang Chinese Medical University, Ningbo, China
- School of Marine Sciences, Ningbo University, Ningbo, China
| | - Junjie Pan
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui, China
| | - Sui Ni
- School of Marine Sciences, Ningbo University, Ningbo, China
| | - Bincong Xing
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
| | - Kejun Cheng
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui, China
| | - Xin Peng
- Ningbo Municipal Hospital of TCM, Affiliated Hospital of Zhejiang Chinese Medical University, Ningbo, China
| |
Collapse
|
16
|
Raza A, Tabassum J, Mubarik MS, Anwar S, Zahra N, Sharif Y, Hafeez MB, Zhang C, Corpas FJ, Chen H. Hydrogen sulfide: an emerging component against abiotic stress in plants. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:540-558. [PMID: 34870354 DOI: 10.1111/plb.13368] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/04/2021] [Indexed: 05/05/2023]
Abstract
As a result of climate change, abiotic stresses are the most common cause of crop losses worldwide. Abiotic stresses significantly impair plants' physiological, biochemical, molecular and cellular mechanisms, limiting crop productivity under adverse climate conditions. However, plants can implement essential mechanisms against abiotic stressors to maintain their growth and persistence under such stressful environments. In nature, plants have developed several adaptations and defence mechanisms to mitigate abiotic stress. Moreover, recent research has revealed that signalling molecules like hydrogen sulfide (H2 S) play a crucial role in mitigating the adverse effects of environmental stresses in plants by implementing several physiological and biochemical mechanisms. Mainly, H2 S helps to implement antioxidant defence systems, and interacts with other molecules like nitric oxide (NO), reactive oxygen species (ROS), phytohormones, etc. These molecules are well-known as the key players that moderate the adverse effects of abiotic stresses. Currently, little progress has been made in understanding the molecular basis of the protective role of H2 S; however, it is imperative to understand the molecular basis using the state-of-the-art CRISPR-Cas gene-editing tool. Subsequently, genetic engineering could provide a promising approach to unravelling the molecular basis of stress tolerance mediated by exogenous/endogenous H2 S. Here, we review recent advances in understanding the beneficial roles of H2 S in conferring multiple abiotic stress tolerance in plants. Further, we also discuss the interaction and crosstalk between H2 S and other signal molecules; as well as highlighting some genetic engineering-based current and future directions.
Collapse
Affiliation(s)
- A Raza
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - J Tabassum
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Science (CAAS), Zhejiang, China
| | - M S Mubarik
- Department of Biotechnology, University of Narowal (UON), Narowal, 51600, Pakistan
| | - S Anwar
- Department of Agronomy, University of Florida, Gainesville, USA
| | - N Zahra
- Department of Botany, University of Agriculture, Faisalabad, Pakistan
| | - Y Sharif
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - M B Hafeez
- College of Agronomy, Northwest A&F University, Yangling, China
| | - C Zhang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - F J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Granada, Spain
| | - H Chen
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| |
Collapse
|
17
|
Zhang T, Wang Y, Zhao Z, Xu S, Shen W. Degradation of Carbendazim by Molecular Hydrogen on Leaf Models. PLANTS (BASEL, SWITZERLAND) 2022; 11:621. [PMID: 35270091 PMCID: PMC8912477 DOI: 10.3390/plants11050621] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 12/17/2022]
Abstract
Although molecular hydrogen can alleviate herbicide paraquat and Fusarium mycotoxins toxicity in plants and animals, whether or how molecular hydrogen influences pesticide residues in plants is not clear. Here, pot experiments in greenhouse revealed that degradation of carbendazim (a benzimidazole pesticide) in leaves could be positively stimulated by molecular hydrogen, either exogenously applied or with genetic manipulation. Pharmacological and genetic increased hydrogen gas could increase glutathione metabolism and thereafter carbendazim degradation, both of which were abolished by the removal of endogenous glutathione with its synthetic inhibitor, in both tomato and in transgenic Arabidopsis when overexpressing the hydrogenase 1 gene from Chlamydomonas reinhardtii. Importantly, the antifungal effect of carbendazim in tomato plants was not obviously altered regardless of molecular hydrogen addition. The contribution of glutathione-related detoxification mechanism achieved by molecular hydrogen was confirmed. Our results might not only illustrate a previously undescribed function of molecular hydrogen in plants, but also provide an environmental-friendly approach for the effective elimination or reduction of pesticides residues in crops when grown in pesticides-overused environmental conditions.
Collapse
Affiliation(s)
- Tong Zhang
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (T.Z.); (Y.W.); (Z.Z.)
| | - Yueqiao Wang
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (T.Z.); (Y.W.); (Z.Z.)
| | - Zhushan Zhao
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (T.Z.); (Y.W.); (Z.Z.)
| | - Sheng Xu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China;
| | - Wenbiao Shen
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (T.Z.); (Y.W.); (Z.Z.)
| |
Collapse
|
18
|
Wang Y, Zhang T, Wang J, Xu S, Shen W. Regulation of chlorothalonil degradation by molecular hydrogen. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127291. [PMID: 34583156 DOI: 10.1016/j.jhazmat.2021.127291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/06/2021] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
Pesticides can accumulate throughout the food chain to potentially endanger human health. Although molecular hydrogen (H2) is widely used in industry and medicine, its application in agriculture is just beginning. This study showed that H2 enhances the degradation of the fungicide chlorothalonil (CHT) in plants, but does not reduce its antifungal efficacy. Pharmacological evidence confirmed the contribution of H2-stimulated brassinosteroids (BRs) in the above responses. The genetic increased endogenous H2 with overexpression of hydrogenase 1 gene (CrHYD1) from Chlamydomonas reinhardtii in Arabidopsis not only increased BRs levels, but also eventually intensified the degradation of CHT. Expression of genes encoding some enzymes responsible for detoxification in tomato and Arabidopsis were also stimulated. Contrasting responses were observed after the pharmacological removal of endogenous BR. We further proved that H2 control of CHT degradation was relatively universal, with at least since its degradation in Chinese cabbage, cucumber, radish, alfalfa, rice, and rapeseed were differentially enhanced by H2. Collectively, above results clearly indicated that both exogenously and endogenously applied with H2 could stimulate degradation of CHT partially via BR-dependent detoxification. These results may open a new window for environmental-friendly hydrogen-based agriculture.
Collapse
Affiliation(s)
- Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Tong Zhang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jun Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Sheng Xu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
| |
Collapse
|
19
|
He J, Cheng P, Wang J, Xu S, Zou J, Shen W. Magnesium hydride confers copper tolerance in alfalfa via regulating nitric oxide signaling. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 231:113197. [PMID: 35032725 DOI: 10.1016/j.ecoenv.2022.113197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/27/2021] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
Magnesium hydride (MgH2) as a solid-state hydrogen source might be potentially applied in industry and medicine. However, its biological function in plants has not yet been fully discovered. In this report, it was observed that MgH2 administration could relieve copper (Cu) toxicity in alfalfa that was confirmed by a reduction in root growth inhibition. By using old MgH2 as a negative control, it was concluded that above MgH2 function was primarily derived from the releasing of molecular hydrogen (H2), but not caused by either magnesium metabolites or pH alteration. Further results revealed that Cu-triggered nitric oxide (NO) production was intensified by MgH2. Subsequent pharmacological and biochemical experiments suggested that nitrate reductase might be mainly responsible for NO production during above processes. Cu accumulation in the root tissues was also obviously reduced in the presence of MgH2. Meanwhile, increased non-protein thiols (NPTs) content and the deposition of Cu in cell wall of seedling roots could be used to explain the mechanism underlying MgH2-alleviated Cu toxicity via NO signaling. Further, the plant redox balance was reestablished since the Cu stress-modulated antioxidant enzymes activities, reactive oxygen species (ROS) accumulation, and oxidative injury detected by in vivo histochemical and biochemical analyses, were differentially abolished by MgH2. The above responses could be blocked by the removal of endogenous NO after the addition of its scavenger. Taken together, these results clearly suggested that MgH2 control of plant tolerance against Cu toxicity might be mediated by NO signaling, which might open a new window for the application of solid-state hydrogen materials in agriculture.
Collapse
Affiliation(s)
- Junjie He
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Jun Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Sheng Xu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China.
| | - Jianxin Zou
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
| |
Collapse
|
20
|
Wang Y, Wang J, Kuang Y, Shen W. Packaging with hydrogen gas modified atmosphere can extend chicken egg storage. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:976-983. [PMID: 34302359 DOI: 10.1002/jsfa.11431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/05/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Although hydrogen gas (H2 ) has been widely used in industry and gradually used in medicine, it is less applied to agriculture, especially in modified atmosphere packing (MAP). RESULTS During chicken egg storage, H2 MAP not only slowed down or delayed the reduction in antioxidant capacities, but also alleviated the deterioration of egg quality. The extent of micro-cracks in the eggshell was also negatively influenced by H2 , which might result in eggs being less vulnerable to microbes. The earlier results demonstrated that the H2 MAP-extended shelf life of chicken eggs might be caused by the responses of eggshell and re-establishment of redox homeostasis. According to the data collected from different provinces of China, cost-economics analysis further suggested that the increase in the extra cost caused by H2 was trivial compared with the original price of eggs. CONCLUSION Together, H2 MAP can prolong the shelf life of chicken eggs with the prospect of wider application. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Yueqiao Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agriculture University, Nanjing, P.R. China
| | - Junjie Wang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agriculture University, Nanjing, P.R. China
| | - Yong Kuang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agriculture University, Nanjing, P.R. China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agriculture University, Nanjing, P.R. China
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, P.R. China
| |
Collapse
|
21
|
Abstract
Improvements in the growth, yield, and quality of horticultural crops require the development of simply integrated, cost-efficient, and eco-friendly solutions. Hydrogen gas (H2) has been observed to have fertilization effects on soils by influencing rhizospheric microorganisms, resulting in improvements in crop yield and quality. Ample studies have shown that H2 has positive effects on horticultural crops, such as promoting root development, enhancing tolerance against abiotic and biotic stress, prolonging storage life, and improving postharvest quality of fruits, vegetables and cut flowers. In this review, we aim to evaluate the feasibility of molecular hydrogen application in horticulture and the strategies for its application, including H2 delivery methods, treatment timing, and the concentration of H2 applied. The discussion will be accompanied by outlining the effects of H2 and the likely mechanisms of its efficacy. In short, the application of H2 may provide novel opportunities for simple and cost efficient improvements of horticultural production in terms of increased yield and product quality but with low carbon dioxide emissions.
Collapse
|
22
|
Hydrogen Sulfide in Plants: Crosstalk with Other Signal Molecules in Response to Abiotic Stresses. Int J Mol Sci 2021; 22:ijms222112068. [PMID: 34769505 PMCID: PMC8585011 DOI: 10.3390/ijms222112068] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 12/21/2022] Open
Abstract
Hydrogen sulfide (H2S) has recently been considered as a crucial gaseous transmitter occupying extensive roles in physiological and biochemical processes throughout the life of plant species. Furthermore, plenty of achievements have been announced regarding H2S working in combination with other signal molecules to mitigate environmental damage, such as nitric oxide (NO), abscisic acid (ABA), calcium ion (Ca2+), hydrogen peroxide (H2O2), salicylic acid (SA), ethylene (ETH), jasmonic acid (JA), proline (Pro), and melatonin (MT). This review summarizes the current knowledge within the mechanism of H2S and the above signal compounds in response to abiotic stresses in plants, including maintaining cellular redox homeostasis, exchanging metal ion transport, regulating stomatal aperture, and altering gene expression and enzyme activities. The potential relationship between H2S and other signal transmitters is also proposed and discussed.
Collapse
|
23
|
Zulfiqar F, Russell G, Hancock JT. Molecular hydrogen in agriculture. PLANTA 2021; 254:56. [PMID: 34420086 DOI: 10.1007/s00425-021-03706-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 08/14/2021] [Indexed: 05/04/2023]
Abstract
H2 gas, usually in the form of H2-saturated water, could play a useful role in improving many aspects of plant growth and productivity, including resistance to stress tolerance and improved post-harvest durability. Therefore, molecular hydrogen delivery systems should be considered as a valuable addition within agricultural practice. Agriculture and food security are both impacted by plant stresses, whether that is directly from human impact or through climate change. A continuously increasing human population and rising food consumption means that there is need to search for agriculturally useful and environment friendly strategies to ensure future food security. Molecular hydrogen (H2) research has gained momentum in plant and agricultural science owing to its multifaceted and diverse roles in plants. H2 application can mitigate against a range of stresses, including salinity, heavy metals and drought. Therefore, knowing how endogenous, or exogenously applied, H2 enhances the growth and tolerance against numerous plant stresses will enhance our understanding of how H2 may be useful for future to agriculture and horticulture. In this review, recent progress and future implication of H2 in agriculture is highlighted, focusing on how H2 impacts on plant cell function and how it can be applied for better plant performance. Although the exact molecular action of H2 in plants remains elusive, this safe and easy to apply treatment should have a future in agricultural practice.
Collapse
Affiliation(s)
- Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan.
| | - Grace Russell
- Department of Applied Sciences, University of the West of England, Bristol, UK
| | - John T Hancock
- Department of Applied Sciences, University of the West of England, Bristol, UK
| |
Collapse
|
24
|
Zhao G, Cheng P, Zhang T, Abdalmegeed D, Xu S, Shen W. Hydrogen-rich water prepared by ammonia borane can enhance rapeseed (Brassica napus L.) seedlings tolerance against salinity, drought or cadmium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 224:112640. [PMID: 34392154 DOI: 10.1016/j.ecoenv.2021.112640] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 05/04/2023]
Abstract
Hydrogen agriculture is recently recognized as an emerging and promising approach for low-carbon society. Since shorter retention time for hydrogen gas (H2) in conventional electrolytically produced hydrogen-rich water (HRW) limits its application, seeking a more suitable method to produce and maintain H2 level in HRW for longer time remain a challenge for scientific community. To solve above problems, we compared and concluded that the H2 in HRW prepared by ammonia borane (NH3·BH3) could meet above requirement. The biological effects of HRW prepared by NH3·BH3 were further evaluated in seedlings of rapeseed, the most important crop for producing vegetable oil worldwide. Under our experimental conditions, 2 mg/L NH3·BH3-prepared HRW could confer 3-day-old hydroponic seedlings tolerance against 150 mM sodium chloride (NaCl), 20% polyethylene glycol (PEG; w/v), or 100 μM CdCl2 stress, and intensify endogenous nitric oxide (NO) accumulation under above stresses. The alleviation of seedlings growth stunt was confirmed by reducing cell death and reestablishing redox homeostasis. Reconstructing ion homeostasis, increasing proline content, and reducing Cd accumulation were accordingly observed. Above responses were sensitive to the removal of endogenous NO with its scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethyl-imidazoline-1-1-oxyl-3-oxide (cPTIO; 100 μM), reflecting the requirement of NO functioning in the regulation of plant physiology achieved by NH3·BH3-prepared HRW. The application of 1 mM tungstate, an inhibitor of nitrate reductase (NR; an important NO synthetic enzyme), showed the similar blocking responses in the phenotype, suggesting that NR might be the major source of NO involved in above H2 actions. Together, these results revealed that HRW prepared by NH3·BH3 could enhance rapeseed seedlings tolerance against abiotic stress, thus opening a new window for the application of H2 in agricultural production.
Collapse
Affiliation(s)
- Gan Zhao
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Tong Zhang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Dyaaaldin Abdalmegeed
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Sheng Xu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
| |
Collapse
|
25
|
Thakur M, Anand A. Hydrogen sulfide: An emerging signaling molecule regulating drought stress response in plants. PHYSIOLOGIA PLANTARUM 2021; 172:1227-1243. [PMID: 33860955 DOI: 10.1111/ppl.13432] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
Hydrogen sulfide (H2 S) is a small, reactive signaling molecule that is produced within chloroplasts of plant cells as an intermediate in the assimilatory sulfate reduction pathway by the enzyme sulfite reductase. In addition, H2 S is also produced in cytosol and mitochondria by desulfhydration of l-cysteine catalyzed by l-cysteine desulfhydrase (DES1) in the cytosol and from β-cyanoalanine in mitochondria, in a reaction catalyzed by β-cyano-Ala synthase C1 (CAS-C1). H2 S exerts its numerous biological functions by post-translational modification involving oxidation of cysteine residues (RSH) to persulfides (RSSH). At lower concentrations (10-1000 μmol L-1 ), H2 S shows huge agricultural potential as it increases the germination rate, the size, fresh weight, and ultimately the crop yield. It is also involved in abiotic stress response against drought, salinity, high temperature, and heavy metals. H2 S donor, for example, sodium hydrosulfide (NaHS), has been exogenously applied on plants by various researchers to provide drought stress tolerance. Exogenous application results in the accumulation of polyamines, sugars, glycine betaine, and enhancement of the antioxidant enzyme activities in response to drought-induced osmotic and oxidative stress, thus, providing stress adaptation to plants. At the biochemical level, administration of H2 S donors reduces malondialdehyde content and lipoxygenase activity to maintain the cell integrity, causes abscisic acid-mediated stomatal closure to prevent water loss through transpiration, and accelerates the photosystem II repair cycle. Here, we review the crosstalk of H2 S with secondary messengers and phytohormones towards the regulation of drought stress response and emphasize various approaches that can be addressed to strengthen research in this area.
Collapse
Affiliation(s)
- Meenakshi Thakur
- College of Horticulture and Forestry (Dr. Y.S. Parmar University of Horticulture and Forestry), Neri, Hamirpur, India
| | - Anjali Anand
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| |
Collapse
|
26
|
Jiang K, Kuang Y, Feng L, Liu Y, Wang S, Du H, Shen W. Molecular Hydrogen Maintains the Storage Quality of Chinese Chive through Improving Antioxidant Capacity. PLANTS 2021; 10:plants10061095. [PMID: 34072565 PMCID: PMC8227461 DOI: 10.3390/plants10061095] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/23/2021] [Accepted: 05/27/2021] [Indexed: 01/03/2023]
Abstract
Chinese chive usually becomes decayed after a short storage time, which was closely observed with the redox imbalance. To cope with this practical problem, in this report, molecular hydrogen (H2) was used to evaluate its influence in maintaining storage quality of Chinese chive, and the changes in antioxidant capacity were also analyzed. Chives were treated with 1%, 2%, or 3% H2, and with air as the control, and then were stored at 4 ± 1 °C. We observed that, compared with other treatment groups, the application of 3% H2 could significantly prolong the shelf life of Chinese chive, which was also confirmed by the obvious mitigation of decreased decay index, the loss ratio of weight, and the reduction in soluble protein content. Meanwhile, the decreasing tendency in total phenolic, flavonoid, and vitamin C contents was obviously impaired or slowed down by H2. Results of antioxidant capacity revealed that the accumulation of reactive oxygen species (ROS) and hydrogen peroxide (H2O2) was differentially alleviated, which positively matched with 2,2-Diphenyl-1-picrylhydrazyl (DPPH) scavenging activity and the improved activities of antioxidant enzymes, including superoxide dismutase (SOD), guaiacol peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX). Above results clearly suggest that postharvest molecular hydrogen application might be a potential useful approach to improve the storage quality of Chinese chive, which is partially achieved through the alleviation of oxidative damage happening during the storage periods. These findings also provide potential theoretical and practical significance for transportation and consumption of perishable vegetables.
Collapse
Affiliation(s)
- Ke Jiang
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (K.J.); (Y.K.); (L.F.); (Y.L.); (S.W.)
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yong Kuang
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (K.J.); (Y.K.); (L.F.); (Y.L.); (S.W.)
| | - Liying Feng
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (K.J.); (Y.K.); (L.F.); (Y.L.); (S.W.)
| | - Yuhao Liu
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (K.J.); (Y.K.); (L.F.); (Y.L.); (S.W.)
| | - Shu Wang
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (K.J.); (Y.K.); (L.F.); (Y.L.); (S.W.)
| | - Hongmei Du
- School of Design, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Wenbiao Shen
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (K.J.); (Y.K.); (L.F.); (Y.L.); (S.W.)
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
- Correspondence: ; Tel.: +86-25-84-399-032; Fax: +86-25-84-396-542
| |
Collapse
|
27
|
Li L, Lou W, Kong L, Shen W. Hydrogen Commonly Applicable from Medicine to Agriculture: From Molecular Mechanisms to the Field. Curr Pharm Des 2021; 27:747-759. [PMID: 33290194 DOI: 10.2174/1381612826666201207220051] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 11/08/2020] [Indexed: 11/22/2022]
Abstract
The emerging field of hydrogen biology has to date mainly been applied in medicine. However, hydrogen biology can also enable positive outcomes in agriculture. Agriculture faces significant challenges resulting from a growing population, climate change, natural disasters, environmental pollution, and food safety issues. In fact, hydrogen agriculture is a practical application of hydrogen biology, which may assist in addressing many of these challenges. It has been demonstrated that hydrogen gas (H2) may enhance plant tolerance towards abiotic and biotic stresses, regulate plant growth and development, increase nutritional values, prolong the shelf life, and decrease the nitrite accumulation during the storage of vegetables, as well as increase the resilience of livestock to pathogens. Our field trials show that H2 may have a promising potential to increase yield and improve the quality of agricultural products. This review aims to elucidate mechanisms for a novel agricultural application of H2 in China. Future development of hydrogen agriculture is proposed as well. Obviously, hydrogen agriculture belongs to a low carbon economy, and has great potential to provide "safe, tasty, healthy, and high-yield" agricultural products so that it may improve the sustainability of agriculture.
Collapse
Affiliation(s)
- Longna Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Wang Lou
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Lingshuai Kong
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| |
Collapse
|
28
|
Su J, Yang X, Shao Y, Chen Z, Shen W. Molecular hydrogen-induced salinity tolerance requires melatonin signalling in Arabidopsis thaliana. PLANT, CELL & ENVIRONMENT 2021; 44:476-490. [PMID: 33103784 DOI: 10.1111/pce.13926] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 05/21/2023]
Abstract
Melatonin (MT) plays positive roles in salinity stress tolerance. However, the upstream signalling components that regulate MT are poorly understood. Here, we report that endogenous MT acts downstream of molecular hydrogen (H2 ) in the salinity response in Arabidopsis. The addition of hydrogen-rich water and expression of the hydrogenase1 gene (CrHYD1) from Chlamydomonas reinhardtii increased endogenous H2 and MT levels and enhanced salinity tolerance. These results were not observed in the absence of serotonin N-acetyltransferase gene (SNAT). H2 increased the levels of SNAT transcripts in the wild-type and CrHYD1 lines, which had lower Na+ /K+ ratios and higher levels of ion transport-related gene transcripts. These changes were not observed in atsnat/CrHYD1-4 hybrids. The increased MT-dependent Na+ extrusion observed in the CrHYD1 plants resulted, at least in part, from enhanced Na+ /H+ antiport across the plasma membrane. The endogenous H2 -induced MT-dependent regulation of ion and redox homeostasis was impaired in the atsnat/CrHYD1-4 hybrids. Taken together, these results demonstrate that MT-induced salinity tolerance is induced by a H2 signalling cascade that regulates ion and redox homeostasis in response to salinity.
Collapse
Affiliation(s)
- Jiuchang Su
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xinghao Yang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Yudong Shao
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Ziping Chen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|