1
|
Mardani-Korrani F, Amooaghaie R, Ahadi A, Ghanadian M. RBOH-dependent signaling is involved in He-Ne laser-induced salt tolerance and production of rosmarinic acid and carnosol in Salvia officinalis. BMC PLANT BIOLOGY 2024; 24:798. [PMID: 39179969 PMCID: PMC11344448 DOI: 10.1186/s12870-024-05502-w] [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: 01/05/2024] [Accepted: 08/12/2024] [Indexed: 08/26/2024]
Abstract
BACKGROUND In the past two decades, the impacts of Helium-Neon (He-Ne) laser on stress resistance and secondary metabolism in plants have been studied, but the signaling pathway which by laser regulates this process remains unclear. Therefore, the current study sought to explore the role of RBOH-dependent signaling in He-Ne laser-induced salt tolerance and elicitation of secondary metabolism in Salvia officinalis. Seeds were primed with He-Ne laser (6 J cm- 2) and peroxide hydrogen (H2O2, 5 mM) and 15-old-day plants were exposed to two salinity levels (0, 75 mM NaCl). RESULTS Salt stress reduced growth parameters, chlorophyll content and relative water content (RWC) and increased malodialdehyde (MDA) and H2O2 contents in leaves of 45-old-day plants. After 48 h of salt exposure, higher transcription levels of RBOH (encoding NADPH oxidase), PAL (phenylalanine ammonia-lyase), and RAS (rosmarinic acid synthase) were recorded in leaves of plants grown from seeds primed with He-Ne laser and/or H2O2. Despite laser up-regulated RBOH gene in the early hours of exposing to salinity, H2O2 and MDA contents were lower in leaves of these plants after 30 days. Seed pretreatment with He-Ne laser and/or H2O2 augmented the accumulation of anthocyanins, total phenol, carnasol, and rosmarinic acid and increased total antioxidant capacity under non-saline and more extensively at saline conditions. Indeed, these treatments improved RWC, and K+/Na+ ratio, enhanced the activities of superoxide dismutase and ascorbate peroxidase and proline accumulation, and significantly decreased membrane injury and H2O2 content in leaves of 45-old-day plants under salt stress. However, applying diphenylene iodonium (DPI as an inhibitor of NADPH oxidase) and N, N-dimethyl thiourea (DMTU as a H2O2 scavenger) after laser priming reversed the aforementioned effects which in turn resulted in the loss of laser-induced salt tolerance and secondary metabolism. CONCLUSIONS These findings for the first time deciphered that laser can induce a transient RBOH-dependent H2O2 burst, which might act as a downstream signal to promote secondary metabolism and salt stress alleviation in S. officinalis plants.
Collapse
Affiliation(s)
| | - Rayhaneh Amooaghaie
- Plant Science Department, Science Faculty, Shahrekord University, Shahrekord, Iran.
- Biotechnology Research Institute, Shahrekord University, Shahrekord, Iran.
| | - Alimohammad Ahadi
- Genetic Department, Science Faculty, Shahrekord University, Shahrekord, Iran
| | - Mustafa Ghanadian
- Pharmacognosy Department, Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
2
|
Ikebudu VC, Nkuna M, Ndou N, Ajayi RF, Chivasa S, Cornish K, Mulaudzi T. Carbon Monoxide Alleviates Salt-Induced Oxidative Damage in Sorghum bicolor by Inducing the Expression of Proline Biosynthesis and Antioxidant Genes. PLANTS (BASEL, SWITZERLAND) 2024; 13:782. [PMID: 38592836 PMCID: PMC10974450 DOI: 10.3390/plants13060782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/26/2024] [Accepted: 03/05/2024] [Indexed: 04/11/2024]
Abstract
Crop growth and yield are affected by salinity, which causes oxidative damage to plant cells. Plants respond to salinity by maintaining cellular osmotic balance, regulating ion transport, and enhancing the expression of stress-responsive genes, thereby inducing tolerance. As a byproduct of heme oxygenase (HO)-mediated degradation of heme, carbon monoxide (CO) regulates plant responses to salinity. This study investigated a CO-mediated salt stress tolerance mechanism in sorghum seedlings during germination. Sorghum seeds were germinated in the presence of 250 mM NaCl only, or in combination with a CO donor (1 and 1.5 μM hematin), HO inhibitor (5 and 10 μM zinc protoporphyrin IX; ZnPPIX), and hemoglobin (0.1 g/L Hb). Salt stress decreased the germination index (47.73%) and root length (74.31%), while hydrogen peroxide (H2O2) (193.5%), and proline (475%) contents increased. This increase correlated with induced HO (137.68%) activity and transcripts of ion-exchanger and antioxidant genes. Salt stress modified vascular bundle structure, increased metaxylem pit size (42.2%) and the Na+/K+ ratio (2.06) and altered primary and secondary metabolites. However, exogenous CO (1 μM hematin) increased the germination index (63.01%) and root length (150.59%), while H2O2 (21.94%) content decreased under salt stress. Carbon monoxide further increased proline (147.62%), restored the vascular bundle structure, decreased the metaxylem pit size (31.2%) and Na+/K+ ratio (1.46), and attenuated changes observed on primary and secondary metabolites under salt stress. Carbon monoxide increased HO activity (30.49%), protein content, and antioxidant gene transcripts. The alleviatory role of CO was abolished by Hb, whereas HO activity was slightly inhibited by ZnPPIX under salt stress. These results suggest that CO elicited salt stress tolerance by reducing oxidative damage through osmotic adjustment and by regulating the expression of HO1 and the ion exchanger and antioxidant transcripts.
Collapse
Affiliation(s)
- Vivian Chigozie Ikebudu
- Life Sciences Building, Department of Biotechnology, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa; (V.C.I.); (M.N.); (N.N.)
| | - Mulisa Nkuna
- Life Sciences Building, Department of Biotechnology, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa; (V.C.I.); (M.N.); (N.N.)
| | - Nzumbululo Ndou
- Life Sciences Building, Department of Biotechnology, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa; (V.C.I.); (M.N.); (N.N.)
- SensorLab, Department of Chemical Sciences, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa;
| | - Rachel Fanelwa Ajayi
- SensorLab, Department of Chemical Sciences, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa;
| | - Stephen Chivasa
- Biosciences Department, Durham University, Durham DH1 3LE, UK;
| | - Katrina Cornish
- Department of Horticulture and Crop Science, Ohio Agricultural Research and Development Center, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691-4096, USA;
- Department of Food, Agriculture and Biological Engineering, Ohio Agricultural Research and Development Center, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691-4096, USA
| | - Takalani Mulaudzi
- Life Sciences Building, Department of Biotechnology, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa; (V.C.I.); (M.N.); (N.N.)
| |
Collapse
|
3
|
Feng L, Wei L, Liu Y, Ren J, Liao W. Carbon monoxide/heme oxygenase system in plant: Roles in abiotic stress response and crosstalk with other signals molecules. Nitric Oxide 2023; 138-139:51-63. [PMID: 37364740 DOI: 10.1016/j.niox.2023.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/15/2023] [Accepted: 06/23/2023] [Indexed: 06/28/2023]
Abstract
Carbon monoxide (CO) has been recognized as a crucial gasotransmitter mainly produced by heme oxygenase (HO)-catalyzed heme degradation in plant. Recent studies have shown that CO plays an important role in regulating growth and development of plant, as well as and responding to a variety of abiotic stresses. Meanwhile, many studies have reported on CO working in combination with other signal molecules to mitigate abiotic stress. Here, we presented a comprehensive overview of recent developments in which CO reduces plant damage caused by abiotic stresses. The regulation of antioxidant system, photosynthetic system, ion balance and transport are the main mechanisms of CO-alleviated abiotic stress. We also proposed and discussed the relationship between CO and other signal molecules, including nitric oxide (NO), hydrogen sulfide (H2S), hydrogen gas (H2), abscisic acid (ABA), indole 3-acetic acid (IAA), gibberellin (GA), cytokine (CTK), salicylic acid (SA), jasmonic acid (JA), hydrogen peroxide (H2O2) and calcium ion (Ca2+). Furthermore, the important role of HO genes in alleviating abiotic stress was also discussed. We proposed promising and new research directions for the study of plant CO, which can provide further insights on the role of CO in plant growth and development under abiotic stress.
Collapse
Affiliation(s)
- Li Feng
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, China
| | - Lijuan Wei
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, China
| | - Yayu Liu
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, China
| | - Jiaxuan Ren
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, China
| | - Weibiao Liao
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, China.
| |
Collapse
|
4
|
Gour T, Sharma A, Lal R, Heikrujam M, Gupta A, Agarwal LK, Chetri SP, Kumar R, Sharma K. Amelioration of the physio-biochemical responses to salinity stress and computing the primary germination index components in cauliflower on seed priming. Heliyon 2023; 9:e14403. [PMID: 36950655 PMCID: PMC10025027 DOI: 10.1016/j.heliyon.2023.e14403] [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: 11/02/2022] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
The significant horticultural crop, cauliflower (Brassica oleracea L. var. botrytis) is vulnerable to the excessive salt concentration in the soil, which contributes to its scaled-down growth and productivity, among other indices. The current study examines the efficacy of hydropriming, halopriming, and osmopriming on the physio-biochemical attributes and tolerance to salinity (100 mM NaCl) in cauliflower under controlled conditions. The results showed that the salinity (100 mM NaCl) has significant deleterious impacts on cauliflower seed germination, seedling growth, and photosynthetic attributes, and provoked the production of reactive oxygen species. In contrast, different priming approaches proved beneficial in mitigating the negative effects of salinity and boosted the germination, vigor indices, seedling growth, and physio-biochemical attributes like photosynthetic pigments, protein, and proline content while suppressing oxidative damage and MDA content in cauliflower seedlings in treatment- and dose-dependent manner. PCA revealed 61% (PC1) and 15% (PC2) of the total variance with substantial positive relationships and high loading conditions on all germination attributes on PC1 with greater PC1 scores for PEG treatments showing the increased germination indices in PEG-treated seeds among all the priming treatments tested. All 13 distinct priming treatments tried clustered into three groups as per Ward's approach of systematic categorization, clustering the third group showing relatively poor germination performances. Most germination traits exhibited statistically significant associations at the p < 0.01 level. Overall, the results established the usefulness of the different priming approaches facilitating better germination, survival, and resistance against salinity in the cauliflower to be used further before sowing in the salt-affected agro-ecosystems.
Collapse
Affiliation(s)
- Tripti Gour
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Anukriti Sharma
- Department of Environmental Sciences, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Ratan Lal
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Monika Heikrujam
- Department of Botany, Maitreyi College, University of Delhi, Delhi, India
| | - Anshul Gupta
- Department of Agriculture, Rajasthan Govt., Jaipur, Rajasthan, India
| | - Lokesh Kumar Agarwal
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Siva P.K. Chetri
- Department of Botany, Dimoria College, Khetri, Kamrup (M), Guwahati, Assam, India
| | - Rajesh Kumar
- Department of Botany, Hindu College, University of Delhi, Delhi, India
| | - Kuldeep Sharma
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
- Corresponding author. Laboratory for Plant Translational, Research & Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur- 313001, Rajasthan, India.
| |
Collapse
|
5
|
Hudeček M, Nožková V, Plíhalová L, Plíhal O. Plant hormone cytokinin at the crossroads of stress priming and control of photosynthesis. FRONTIERS IN PLANT SCIENCE 2023; 13:1103088. [PMID: 36743569 PMCID: PMC9889983 DOI: 10.3389/fpls.2022.1103088] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 12/29/2022] [Indexed: 06/18/2023]
Abstract
To cope with biotic and abiotic stress conditions, land plants have evolved several levels of protection, including delicate defense mechanisms to respond to changes in the environment. The benefits of inducible defense responses can be further augmented by defense priming, which allows plants to respond to a mild stimulus faster and more robustly than plants in the naïve (non-primed) state. Priming provides a low-cost protection of agriculturally important plants in a relatively safe and effective manner. Many different organic and inorganic compounds have been successfully tested to induce resistance in plants. Among the plethora of commonly used physicochemical techniques, priming by plant growth regulators (phytohormones and their derivatives) appears to be a viable approach with a wide range of applications. While several classes of plant hormones have been exploited in agriculture with promising results, much less attention has been paid to cytokinin, a major plant hormone involved in many biological processes including the regulation of photosynthesis. Cytokinins have been long known to be involved in the regulation of chlorophyll metabolism, among other functions, and are responsible for delaying the onset of senescence. A comprehensive overview of the possible mechanisms of the cytokinin-primed defense or stress-related responses, especially those related to photosynthesis, should provide better insight into some of the less understood aspects of this important group of plant growth regulators.
Collapse
Affiliation(s)
- Martin Hudeček
- Laboratory of Growth Regulators, Faculty of Science of Palacký University and Institute of Experimental Botany of the Czech Academy of Sciences, Olomouc, Czechia
| | - Vladimíra Nožková
- Department of Chemical Biology, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Lucie Plíhalová
- Department of Chemical Biology, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Ondřej Plíhal
- Laboratory of Growth Regulators, Faculty of Science of Palacký University and Institute of Experimental Botany of the Czech Academy of Sciences, Olomouc, Czechia
| |
Collapse
|
6
|
Mardani Korrani F, Amooaghaie R, Ahadi A. He-Ne Laser Enhances Seed Germination and Salt Acclimation in Salvia officinalis Seedlings in a Manner Dependent on Phytochrome and H 2O 2. PROTOPLASMA 2023; 260:103-116. [PMID: 35471709 DOI: 10.1007/s00709-022-01762-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
In the current study the role of H2O2 in He-Ne laser-induced effects on seed germination and post-germinative performance of Salvia officinalis seedlings was assessed under both non-stress and saline conditions. Salinity had adverse impacts on seed germination and root length and decreased seed germination tolerance index. Seed priming with H2O2 and He-Ne laser impacted the seed germination and vigoration in a dose-dependent manner. The optimal effects were gathered by energy dose of 6 J/cm2 laser and concentration of 5 mM H2O2. These pre-treatments enhanced seed germination due to increasing contents of total soluble and reducing sugars and the amylase activity in seeds and improved seedling performance under saline and non-saline conditions. Furthermore, Phy B transcripts were upregulated, salt-accrued oxidative stress was mitigated, and the activities of POD and CAT increased in seedlings primed with H2O2 and laser. Interestingly, applying diphenyleneiodonium (DPI as an inhibitor of NADPH oxidase activity) and N, N-dimethyl thiourea (DMTU as a H2O2 scavenger) arrested the upregulation of phy B gene and abolished stimulatory impact of laser priming on the aforementioned attributes under both non-stress and saline conditions. These novel findings suggest that H2O2 as a downstream signal modulates the impacts of He-Ne laser on seed germination, seedling performance and salt acclimation in sage seedlings, and likely phy B also is involved in these responses.
Collapse
Affiliation(s)
| | - Rayhaneh Amooaghaie
- Plant Science Department, Science Faculty, Shahrekord University, Shahrekord, Iran.
- Biotechnology Research Institute, Shahrekord University, Shahrekord, Iran.
| | - Alimohammad Ahadi
- Genetic Department, Science Faculty, Shahrekord University, Shahrekord, Iran
| |
Collapse
|
7
|
Arikan B, Ozfidan-Konakci C, Alp FN, Zengin G, Yildiztugay E. Rosmarinic acid and hesperidin regulate gas exchange, chlorophyll fluorescence, antioxidant system and the fatty acid biosynthesis-related gene expression in Arabidopsis thaliana under heat stress. PHYTOCHEMISTRY 2022; 198:113157. [PMID: 35271935 DOI: 10.1016/j.phytochem.2022.113157] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/26/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
The impacts of exogenous rosmarinic acid (RA, 100 μM) and/or hesperidin (HP, 100 μM) were evaluated in improving tolerance on the gas exchange, chlorophyll fluorescence and efficiencies, phenomenological fluxes of photosystems, antioxidant system and gene expression related to the lipid biosynthesis under heat stress. For this purpose, Arabidopsis thaliana was grown under RA and HP with heat stress (S, 38 °C) for 24 h(h). As shown in gas exchange parameters, heat stress caused mesophyll efficiency and non-stomatal restrictions. Both alone and combined forms of RA and HP to stress-treated A. thaliana alleviated the disturbance of carbon assimilation, transpiration rate and internal CO2 concentrations. Stress impaired the levels of energy flow reaching reaction centers of PSII and the photon capture ability of active reaction centers. RA and/or HP enhanced photosystems' structural/functional characteristics and photosynthetic performance. Histochemical staining and biochemical analyses revealed that heat stress caused the oxidation in A. thaliana. By activating several defensive mechanisms, RA and/or HP could reverse the harm caused by radical production. Both alone and combined forms of RA and HP removed superoxide anion radical (O2•-) accumulation, inducing superoxide dismutase (SOD). The common enzyme that scavenged hydrogen peroxide (H2O2) at all three applications (S + RA, S + HP and S + RA + HP) was POX. Also, only RA could utilize the ascorbate (AsA) regeneration in response to stress, suggesting increased ascorbate peroxidase (APX), monodehydroascorbate (MDHAR) and dehydroascorbate (DHAR) activities. However, the regeneration/redox state of AsA and glutathione (GSH) did not maintain under S + HP and S + RA + HP. While RA had no positive influence on the saturated fatty acids under stress, HP increased the total saturated fatty acids (primarily palmitic acid). Besides, the combined application of RA + HP effectively created the stress response by increasing the expression of genes involved in fatty acid synthesis. The synergetic interactions of RA and HP could explain the increased levels of saturated fatty acids in combining these compounds. The data obtained from the study will contribute to the responses of phenolic compounds in plants to heat stress.
Collapse
Affiliation(s)
- Busra Arikan
- Department of Biotechnology, Faculty of Science, Selcuk University, Selcuklu, 42130, Konya, Turkey.
| | - Ceyda Ozfidan-Konakci
- Department of Molecular Biology and Genetics, Faculty of Science, Necmettin Erbakan University, Meram, 42090, Konya, Turkey.
| | - Fatma Nur Alp
- Department of Biotechnology, Faculty of Science, Selcuk University, Selcuklu, 42130, Konya, Turkey.
| | - Gökhan Zengin
- Department of Biology, Faculty of Science, Selcuk University, Selcuklu, 42130, Konya, Turkey.
| | - Evren Yildiztugay
- Department of Biotechnology, Faculty of Science, Selcuk University, Selcuklu, 42130, Konya, Turkey.
| |
Collapse
|
8
|
Singh N, Bhatla SC. Heme oxygenase-nitric oxide crosstalk-mediated iron homeostasis in plants under oxidative stress. Free Radic Biol Med 2022; 182:192-205. [PMID: 35247570 DOI: 10.1016/j.freeradbiomed.2022.02.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/25/2022] [Accepted: 02/28/2022] [Indexed: 12/22/2022]
Abstract
Plant growth under abiotic stress conditions significantly enhances intracellular generation of reactive oxygen species (ROS). Oxidative status of plant cells is directly affected by the modulation of iron homeostasis. Among mammals and plants, heme oxygenase-1 (HO-1) is a well-known antioxidant enzyme. It catalyzes oxygenation of heme, thereby producing Fe2+, CO and biliverdin as byproducts. The antioxidant potential of HO-1 is primarily due to its catalytic reaction byproducts. Biliverdin and bilirubin possess conjugated π-electrons which escalate the ability of these biomolecules to scavenge free radicals. CO also enhances the ROS scavenging ability of plants cells by upregulating catalase and peroxidase activity. Enhanced expression of HO-1 in plants under oxidative stress accompanies sequestration of iron in specialized iron storage proteins localized in plastids and mitochondria, namely ferritin for Fe3+ storage and frataxin for storage of Fe-S clusters, respectively. Nitric oxide (NO) crosstalks with HO-1 at multiple levels, more so in plants under oxidative stress, in order to maintain intracellular iron status. Formation of dinitrosyl-iron complexes (DNICs) significantly prevents Fenton reaction during oxidative stress. DNICs also release NO upon dissociation in target cells over long distance in plants. They also function as antioxidants against superoxide anions and lipidic free radicals. A number of NO-modulated transcription factors also facilitate iron homeostasis in plant cells. Plants facing oxidative stress exhibit modulation of lateral root formation by HO-1 through NO and auxin-dependent pathways. The present review provides an in-depth analysis of the structure-function relationship of HO-1 in plants and mammals, correlating them with their adaptive mechanisms of survival under stress.
Collapse
Affiliation(s)
- Neha Singh
- Department of Botany, Gargi College, University of Delhi, India.
| | - Satish C Bhatla
- Laboratory of Plant Physiology and Biochemistry, Department of Botany, University of Delhi, Delhi, 110007, India.
| |
Collapse
|
9
|
Vafadar F, Amooaghaie R, Ehsanzadeh P, Ghanati F. Melatonin improves the photosynthesis in Dracocephalum kotschyi under salinity stress in a Ca 2+/CaM-dependent manner. FUNCTIONAL PLANT BIOLOGY : FPB 2021; 49:89-101. [PMID: 34794543 DOI: 10.1071/fp21233] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
This study investigated: (1) the effects of various concentrations of melatonin (MT) and Ca2+; and (2) the impact of crosstalk between these signal molecules on photosynthesis and salt tolerance of Dracocephalum kotschyi Boiss. Results indicated that 5mM CaCl2, as well as 100μM MT were the best concentrations for increasing shoot dry weight, leaf area, SPAD index, maximum quantum efficiency of photosystem II (Fv/Fm), and decreasing malondialdehyde content under salinity stress. The impact of MT on growth and photosynthesis was closely linked to its effect on enhancing antioxidant enzyme activities in leaves. Application of p-chlorophenylalanine, as an inhibitor of MT biosynthesis, negated the impacts of MT on the aforementioned attributes. Salinity and MT boosted cytosolic Ca2+ concentration. Exogenous MT, as well as Ca2+, enhanced tolerance index, membrane stability, leaf area, the content of chlorophyll (Chl) a, Chl b, and carotenoids (Car), Fv/Fm, and stomatal conductance under salinity stress. These impacts of MT were eliminated by applying a calmodulin antagonist, a Ca2+ chelator and a Ca2+ channel blocker. These novel findings indicate that the MT-induced effects on photosynthetic parameters and salt-evoked oxidative stress were mediated through calcium/calmodulin (Ca2+/CaM) signalling.
Collapse
Affiliation(s)
- Farinaz Vafadar
- Plant Biology Department, Faculty of Science, Shahrekord University, Shahrekord, Iran
| | - Rayhaneh Amooaghaie
- Plant Biology Department, Faculty of Science, Shahrekord University, Shahrekord, Iran; and Biotechnology Research Institute, Shahrekord University, Shahrekord, Iran
| | - Parviz Ehsanzadeh
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Faezeh Ghanati
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB 14115-154, Tehran, Iran
| |
Collapse
|
10
|
Lana LG, de Araújo LM, Silva TF, Modolo LV. Interplay between gasotransmitters and potassium is a K +ey factor during plant response to abiotic stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 169:322-332. [PMID: 34837865 DOI: 10.1016/j.plaphy.2021.11.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/15/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Carbon monoxide (CO), nitric oxide (NO) and hydrogen sulfide (H2S) are gasotransmitters known for their roles in plant response to (a)biotic stresses. The crosstalk between these gasotransmitters and potassium ions (K+) has received considerable attention in recent years, particularly due to the dual role of K+ as an essential mineral nutrient and a promoter of plant tolerance to abiotic stress. This review brings together what it is known about the interplay among NO, CO, H2S and K+ in plants with focus on the response to high salinity. Some findings obtained for plants under water deficit and metal stress are also presented and discussed since both abiotic stresses share similarities with salt stress. The molecular targets of the gasotransmitters NO, CO and H2S in root and guard cells that drive plant tolerance to salt stress are highlighted as well.
Collapse
Affiliation(s)
- Luísa Gouveia Lana
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Lara Matos de Araújo
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Thamara Ferreira Silva
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Luzia Valentina Modolo
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
| |
Collapse
|
11
|
Vafadar F, Amooaghaie R, Ehsanzadeh P, Ghanadian M, Talebi M, Ghanati F. Melatonin and calcium modulate the production of rosmarinic acid, luteolin, and apigenin in Dracocephalum kotschyi under salinity stress. PHYTOCHEMISTRY 2020; 177:112422. [PMID: 32593901 DOI: 10.1016/j.phytochem.2020.112422] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 05/19/2020] [Accepted: 05/25/2020] [Indexed: 05/27/2023]
Abstract
Melatonin (Mel) and calcium (Ca2+) have a regulatory role in the induction of specialized metabolites production and defensive responses against stresses. Therefore, in this study, the effects of Mel and Ca2+ and the possible relationship between them in the increase of the production of phenolic compounds in Dracocephalum kotschyi Boiss. under both control and salinity stress conditions were investigated. The results showed that 75 mM NaCl reduced shoot dry biomass but elevated H2O2 content, electrolyte leakage (EL) level, total phenolic and flavonoid contents (TPC and TFC), and DPPH scavenging capacity. Salinity stress also upregulated gene expression of phenylalanine ammonia-lyase (PAL) and rosmarinic acid synthase (RAS), as well as the activities of PAL and tyrosine ammonia-lyase (TAL) enzymes. Pre-treatment of the plants with CaCl2 and Mel affected these attributes in a dose-dependent manner. Application of 5 mM Ca2+ and 100 μM Mel improved shoot dry biomass and reduced the level of EL and H2O2 content but enhanced TPC and TFC, DPPH scavenging capacity, PAL and TAL activities, PAL and RAS transcripts, and content of rosmarinic acid (RA), luteolin flavone (LF) and apigenin flavone (AF) under salinity stress. Pre-treatment of D. kotschyi with lanthanum chloride (LaCl3) as a plasma membrane channel blocker, ethylene glycol tetra-acetic acid (EGTA) as a Ca2+ chelator and trifluoperazine (TFP) as a calmodulin (CaM) antagonist, impaired Mel effects on the above attributes under salinity stress. In contrast, pre-treatment with p-chlorophenylalanine (p-CPA), as an inhibitor of Mel biosynthesis, did not impair the impacts of Ca2+ on the production of phenolic compounds in salt-exposed plants. These results suggested that the effect of Mel on the induction of phenolic compounds production requires the influx of extracellular Ca2+ into the cells and is dependent on Ca2+/CaM signaling.
Collapse
Affiliation(s)
- Farinaz Vafadar
- Plant Biology Department, Faculty of Science, Shahrekord University, Shahrekord, Iran.
| | - Rayhaneh Amooaghaie
- Plant Biology Department, Faculty of Science, Shahrekord University, Shahrekord, Iran; Biotechnology Research Institute, Shahrekord University, Shahrekord, Iran.
| | - Parviz Ehsanzadeh
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Mustafa Ghanadian
- Department of Pharmacognosy, Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Majid Talebi
- Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Faezeh Ghanati
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB141115-154, Tehran, Iran.
| |
Collapse
|
12
|
Vafadar F, Amooaghaie R, Ehsanzadeh P, Ghanati F, Sajedi RH. Crosstalk between melatonin and Ca 2+/CaM evokes systemic salt tolerance in Dracocephalum kotschyi. JOURNAL OF PLANT PHYSIOLOGY 2020; 252:153237. [PMID: 32768684 DOI: 10.1016/j.jplph.2020.153237] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 07/07/2020] [Accepted: 07/10/2020] [Indexed: 05/23/2023]
Abstract
In this study, the role of calcium/calmodulin (Ca2+/CaM) and melatonin (Mel) as two signal molecules in inducing systemic salt tolerance of Dracocephalum kotschyi Boiss. was investigated. Salinity stress (100 mM NaCl) reduced plant growth and induced ionic, osmotic, and oxidative damages in D. kotschyi leaves. Detection of cytosolic free Ca2+ ([Ca2+]cyt) by the Fura-2 method and the measurement of endogenous Mel by GC-MS demonstrated that salinity induced Ca2+ burst and increased endogenous Mel content in D. kotschyi leaves. Root pretreatment with 5 mM Ca2+ or 100 μM Mel recovered plant growth, reduced leaf electrolytic leakage, H2O2, and MDA contents and improved membrane integrity not only at the application site (roots), but also at the untreated distal parts (leaves) under salt stress. Rhizospheric treatment with Mel and Ca2+ triggered systemic tolerance in D. kotschyi, as judged from improving RWC, increasing proline content, modulating Na+, K+, and Ca2+ homeostasis, and enhancing the activities of SOD, CAT, APX, and POD in the leaves of salt-stressed plants. Mel augmented [Ca2+]cyt, but the rhizospheric application of Ca2+ antagonists impaired the latter responses. Furthermore, root pretreatment with Ca2+ increased Mel content, but the application of p-chlorophenylalanine (as an inhibitor of Mel biosynthesis) decreased the above attributes in the leaves of Ca2+-treated plants, leading to an arrest in the Ca2+-induced systemic salt tolerance. These novel results suggest that interaction of Ca2+/CaM and Mel is involved in overcoming salt-induced ionic, osmotic, and oxidative damages and Ca2+ and Mel may act as long-distance signals for inducing systemic salt tolerance in D. kotschyi.
Collapse
Affiliation(s)
- Farinaz Vafadar
- Plant Biology Department, Faculty of Science, Shahrekord University, Shahrekord, Iran.
| | - Rayhaneh Amooaghaie
- Plant Biology Department, Faculty of Science, Shahrekord University, Shahrekord, Iran; Biotechnology Research Institute, Shahrekord University, Shahrekord, Iran.
| | - Parviz Ehsanzadeh
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Faezeh Ghanati
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB141115-154, Tehran, Iran.
| | - Reza H Sajedi
- Department of Biochemistry, Faculty of Biological Science, Tarbiat Modares University (TMU), POB141115-154, Tehran, Iran.
| |
Collapse
|
13
|
Salinity stress alters ion homeostasis, antioxidant activities and the production of rosmarinic acid, luteolin and apigenin in Dracocephalum kotschyi Boiss. Biologia (Bratisl) 2020. [DOI: 10.2478/s11756-020-00562-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
14
|
Valivand M, Amooaghaie R, Ahadi A. Seed priming with H 2S and Ca 2+ trigger signal memory that induces cross-adaptation against nickel stress in zucchini seedlings. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 143:286-298. [PMID: 31539758 DOI: 10.1016/j.plaphy.2019.09.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/11/2019] [Accepted: 09/11/2019] [Indexed: 05/08/2023]
Abstract
In this study, the effect of seed priming with sodium hydro sulfide (NaHS) and CaCl2 as well as the possible relationship between them in inducing post-germinative cross-adaptation in zucchini seedlings (cv Courgette d'Italie) were investigated. Results showed that Ni toxicity reduced plant growth and photosynthetic pigments, decreased the content of ascorbate (AsA) and total thiols, increased hydrogen peroxide (H2O2) content and electrolyte leakage (EL), up-regulated the transcription levels of Ca2+-dependent protein kinase (CDPK) and phytochelatin (PCs) genes and elevated H2S content in leaves of zucchini seedlings. Individual or combined seed priming with Ca2+ and NaHS improved the content of photosynthetic pigments and seedling biomass, reduced H2O2 content and EL, increased the content of AsA and total thiols, decreased ascorbate peroxidase activity and enhanced glutathione reductase activity in leaves. These findings suggest the last time effect of seed priming with Ca2+ and NaHS on inducing cross-adaptation in seedlings under Ni stress. H2S accumulation and other responses induced with Ca2+ in leaves were weakened with hypotaurine (HT as H2S scavenger), denoting seed priming with Ca2+ established cross-adaptation in a H2S-dependent manner. Seed priming with NaHS amplified CDPK transcripts in leaves of seedlings and seed priming with ethylene glycol tetraacetic acid (as Ca2+ chelator), lanthanum chloride and verapamil (as plasma membrane channel blockers) reduced transcript levels of CDPK and PCs genes and reversed impacts of seed priming with NaHS. These results indicated that the cross-adaptation induced with NaHS is mediated through Ca2+ signaling. Overall our findings suggest that two-side cross-talk between Ca2+ and H2S is involved in the acquisition of a signal memory in seed embryo cells which can be employed upon a later Ni-exposure and more strongly enhance AsA-GSH cycle, redox homeostasis and phytochelatin transcripts in leaves of zucchini seedlings grown from primed seeds.
Collapse
Affiliation(s)
- Maryam Valivand
- Plant Science Department, Science Faculty, Shahrekord University, Shahrekord, Iran.
| | - Rayhaneh Amooaghaie
- Plant Science Department, Science Faculty, Shahrekord University, Shahrekord, Iran; Biotechnology Research Institute, Shahrekord University, Shahrekord, Iran
| | - Alimohammad Ahadi
- Genetic Department, Science Faculty, Shahrekord University, Shahrekord, Iran
| |
Collapse
|
15
|
Amooaghaie R, Tabatabaei F, Ahadi A. Alterations in HO-1 expression, heme oxygenase activity and endogenous NO homeostasis modulate antioxidant responses of Brassica nigra against nano silver toxicity. JOURNAL OF PLANT PHYSIOLOGY 2018; 228:75-84. [PMID: 29870881 DOI: 10.1016/j.jplph.2018.01.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 12/04/2017] [Accepted: 01/16/2018] [Indexed: 06/08/2023]
Abstract
Silver nanoparticles (AgNPs) are one of the most widely-used nanomaterials, which are toxic and can cause physiological disorders in plants. The aim of the present study was to investigate whether a possible signaling link between heme oxygenase (HO) and nitric oxide (NO) is implicated in alleviating the toxicity of AgNPs as well as AgNO3. The results showed that exposure to 400 mg L-1 of AgNPs or AgNO3 reduced the chlorophyll content and the growth parameters in Brassica nigra. Data on Ag accumulation as well as the evaluation of lipid peroxidation and the H2O2 content in roots and shoots revealed that AgNP exerted more toxicity than AgNO3. Applying AgNP and AgNO3, respectively, increased HO transcripts by 87.5 and 37.3% and elevated the endogenous NO content 51.8 and 28.5%. The application of both hematin (as an inducer of HO) and sodium nitroprusside (SNP, as a NO donor) reversed the chlorosis and improved plant growth under AgNP and Ag+ ions stresses. Hematin decreased Ag accumulation in plants, indicating that this compound triggered an avoidance mechanism. Hematin and SNP enhanced the activities of antioxidant enzymes and proline accumulation, in parallel to increasing HO transcripts and NO release levels in the roots. ZnPPIX, as the inhibitor of HO, and cPTIO, as the specific NO scavenger, differentially blocked these effects. These findings revealed for the first time that HO might confer an increased tolerance to AgNP by activating the antioxidant systems, which was partially mediated by NO signal.
Collapse
Affiliation(s)
- Rayhaneh Amooaghaie
- Biology Department, Science Faculty, Shahrekord University, Shahrekord, Iran.
| | - Fatemeh Tabatabaei
- Biology Department, Science Faculty, Shahrekord University, Shahrekord, Iran
| | - Alimohammad Ahadi
- Genetic Department, Science Faculty, Shahrekord University, Shahrekord, Iran
| |
Collapse
|