1
|
Morales-Merida BE, Grimaldi-Olivas JC, Cruz-Mendívil A, Villicaña C, Valdez-Torres JB, Heredia JB, León-Chan RG, Lightbourn-Rojas LA, Monribot-Villanueva JL, Guerrero-Analco JA, Ruiz-May E, León-Félix J. Integrating Proteomics and Metabolomics Approaches to Elucidate the Mechanism of Responses to Combined Stress in the Bell Pepper ( Capsicum annuum). PLANTS (BASEL, SWITZERLAND) 2024; 13:1861. [PMID: 38999705 PMCID: PMC11244445 DOI: 10.3390/plants13131861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 06/21/2024] [Accepted: 07/03/2024] [Indexed: 07/14/2024]
Abstract
Bell pepper plants are sensitive to environmental changes and are significantly affected by abiotic factors such as UV-B radiation and cold, which reduce their yield and production. Various approaches, including omics data integration, have been employed to understand the mechanisms by which this crop copes with abiotic stress. This study aimed to find metabolic changes in bell pepper stems caused by UV-B radiation and cold by integrating omic data. Proteome and metabolome profiles were generated using liquid chromatography coupled with mass spectrometry, and data integration was performed in the plant metabolic pathway database. The combined stress of UV-B and cold induced the accumulation of proteins related to photosynthesis, mitochondrial electron transport, and a response to a stimulus. Further, the production of flavonoids and their glycosides, as well as affecting carbon metabolism, tetrapyrrole, and scopolamine pathways, were identified. We have made the first metabolic regulatory network map showing how bell pepper stems respond to cold and UV-B stress. We did this by looking at changes in proteins and metabolites that help with respiration, photosynthesis, and the buildup of photoprotective and antioxidant compounds.
Collapse
Affiliation(s)
- Brandon Estefano Morales-Merida
- Laboratorio de Biología Molecular y Genómica Funcional, Centro de Investigación en Alimentación y Desarrollo, A.C., Carretera a Eldorado Km 5.5, Campo el Diez, Culiacán 80110, Sinaloa, Mexico
| | - Jesús Christian Grimaldi-Olivas
- Laboratorio de Biología Molecular y Genómica Funcional, Centro de Investigación en Alimentación y Desarrollo, A.C., Carretera a Eldorado Km 5.5, Campo el Diez, Culiacán 80110, Sinaloa, Mexico
| | - Abraham Cruz-Mendívil
- CONAHCYT-Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa, Guasave 81101, Sinaloa, Mexico
| | - Claudia Villicaña
- CONAHCYT-Laboratorio de Biología Molecular y Genómica Funcional, Centro de Investigación en Alimentación y Desarrollo, A.C., Carretera a Eldorado Km 5.5, Campo el Diez, Culiacán 80110, Sinaloa, Mexico
| | - José Benigno Valdez-Torres
- Laboratorio de Biología Molecular y Genómica Funcional, Centro de Investigación en Alimentación y Desarrollo, A.C., Carretera a Eldorado Km 5.5, Campo el Diez, Culiacán 80110, Sinaloa, Mexico
| | - J Basilio Heredia
- Laboratorio de Biología Molecular y Genómica Funcional, Centro de Investigación en Alimentación y Desarrollo, A.C., Carretera a Eldorado Km 5.5, Campo el Diez, Culiacán 80110, Sinaloa, Mexico
| | - Rubén Gerardo León-Chan
- Laboratorio de Genética, Instituto de Investigación Lightbourn, A.C., Carretera las Pampas Km 2.5, Jiménez 33980, Chihuahua, Mexico
| | - Luis Alberto Lightbourn-Rojas
- Laboratorio de Genética, Instituto de Investigación Lightbourn, A.C., Carretera las Pampas Km 2.5, Jiménez 33980, Chihuahua, Mexico
| | - Juan L Monribot-Villanueva
- Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C., Carretera Antigua a Coatepec 351, Congregación el Haya, Xalapa 91073, Veracruz, Mexico
| | - José A Guerrero-Analco
- Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C., Carretera Antigua a Coatepec 351, Congregación el Haya, Xalapa 91073, Veracruz, Mexico
| | - Eliel Ruiz-May
- Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C., Carretera Antigua a Coatepec 351, Congregación el Haya, Xalapa 91073, Veracruz, Mexico
| | - Josefina León-Félix
- Laboratorio de Biología Molecular y Genómica Funcional, Centro de Investigación en Alimentación y Desarrollo, A.C., Carretera a Eldorado Km 5.5, Campo el Diez, Culiacán 80110, Sinaloa, Mexico
| |
Collapse
|
2
|
Liu M, Gong F, Yu W, Cao K, Xu H, Zhou X. The Rhododendron Chrysanthum Pall.s' Acetylation Modification of Rubisco Enzymes Controls Carbon Cycling to Withstand UV-B Stress. Biomolecules 2024; 14:732. [PMID: 38927135 PMCID: PMC11201758 DOI: 10.3390/biom14060732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/11/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Lysine acetylation of proteins plays a critical regulatory function in plants. A few advances have been made in the study of plant acetylproteome. However, until now, there have been few data on Rhododendron chrysanthum Pall. (R. chrysanthum). We analyzed the molecular mechanisms of photosynthesis and stress resistance in R. chrysanthum under UV-B stress. We measured chlorophyll fluorescence parameters of R. chrysanthum under UV-B stress and performed a multi-omics analysis. Based on the determination of chlorophyll fluorescence parameters, R. chrysanthum Y(NO) (Quantum yield of non-photochemical quenching) increased under UV-B stress, indicating that the plant was damaged and photosynthesis decreased. In the analysis of acetylated proteomics data, acetylated proteins were found to be involved in a variety of biological processes. Notably, acetylated proteins were significantly enriched in the pathways of photosynthesis and carbon fixation, suggesting that lysine acetylation modifications have an important role in these activities. Our findings suggest that R. chrysanthum has decreased photosynthesis and impaired photosystems under UV-B stress, but NPQ shows that plants are resistant to UV-B. Acetylation proteomics revealed that up- or down-regulation of acetylation modification levels alters protein expression. Acetylation modification of key enzymes of the Calvin cycle (Rubisco, GAPDH) regulates protein expression, making Rubisco and GAPDH proteins expressed as significantly different proteins, which in turn affects the carbon fixation capacity of R. chrysanthum. Thus, Rubisco and GAPDH are significantly differentially expressed after acetylation modification, which affects the carbon fixation capacity and thus makes the plant resistant to UV-B stress. Lysine acetylation modification affects biological processes by regulating the expression of key enzymes in photosynthesis and carbon fixation, making plants resistant to UV-B stress.
Collapse
Affiliation(s)
| | | | | | | | - Hongwei Xu
- Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, China
| | - Xiaofu Zhou
- Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, China
| |
Collapse
|
3
|
Liaqat W, Altaf MT, Barutçular C, Nawaz H, Ullah I, Basit A, Mohamed HI. Ultraviolet-B radiation in relation to agriculture in the context of climate change: a review. CEREAL RESEARCH COMMUNICATIONS 2023; 52:1-24. [PMID: 37361481 PMCID: PMC10099031 DOI: 10.1007/s42976-023-00375-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/03/2023] [Indexed: 06/28/2023]
Abstract
Over the past few decades, the amount of ultraviolet-B radiation (UV-B) reaching the earth's surface has been altered due to climate change and stratospheric ozone dynamics. This narrow but highly biologically active spectrum of light (280-320 nm) can affect plant growth and development. Depletion of ozone and climate change are interlinked in a very complicated manner, i.e., significantly contributing to each other. The interaction of climate change, ozone depletion, and changes in UV-B radiation negatively affects the growth, development, and yield of plants. Furthermore, this interaction will become more complex in the coming years. The ozone layer reduction is paving a path for UV-B radiation to impact the surface of the earth and interfere with the plant's normal life by negatively affecting the plant's morphology and physiology. The nature and degree of the future response of the agricultural ecosystem to the decreasing or increasing UV-B radiation in the background of climate change and ozone dynamics are still unclear. In this regard, this review aims to elucidate the effects of enhanced UV-B radiation reaching the earth's surface due to the depletion of the ozone layer on plants' physiology and the performance of major cereals.
Collapse
Affiliation(s)
- Waqas Liaqat
- Department of Field Crops, Faculty of Agriculture, Institute of Natural and Applied Sciences, Çukurova University, 01330 Adana, Turkey
| | - Muhammad Tanveer Altaf
- Faculty of Agricultural Sciences and Technology, Department of Plant Protection, Sivas University of Science and Technology, 58140 Sivas, Turkey
| | - Celaleddin Barutçular
- Department of Field Crops, Faculty of Agriculture, Institute of Natural and Applied Sciences, Çukurova University, 01330 Adana, Turkey
| | - Hira Nawaz
- Department of Plant Protection, Faculty of Agriculture, Institute of Natural and Applied Sciences, Çukurova University, 01330 Adana, Turkey
| | - Izhar Ullah
- Department of Horticulture, Faculty of Agriculture, Ondokuz Mayis University, Samsun, Turkey
| | - Abdul Basit
- Department of Horticultural Science, Kyungpook National University, Daegu, 41566 South Korea
| | - Heba I. Mohamed
- Department of Biological and Geological Sciences, Faculty of Education, Ain Shams University, Cairo, 11341 Egypt
| |
Collapse
|
4
|
Yan K, Mei H, Dong X, Zhou S, Cui J, Sun Y. Dissecting photosynthetic electron transport and photosystems performance in Jerusalem artichoke ( Helianthus tuberosus L.) under salt stress. FRONTIERS IN PLANT SCIENCE 2022; 13:905100. [PMID: 35968142 PMCID: PMC9363833 DOI: 10.3389/fpls.2022.905100] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Jerusalem artichoke (Helianthus tuberosus L.), a vegetable with medical applications, has a strong adaptability to marginal barren land, but the suitability as planting material in saline land remains to be evaluated. This study was envisaged to examine salt tolerance in Jerusalem artichoke from the angle of photosynthetic apparatus stability by dissecting the photosynthetic electron transport process. Potted plants were exposed to salt stress by watering with a nutrient solution supplemented with NaCl. Photosystem I (PSI) and photosystem II (PSII) photoinhibition appeared under salt stress, according to the significant decrease in the maximal photochemical efficiency of PSI (△MR/MR0) and PSII. Consistently, leaf hydrogen peroxide (H2O2) concentration and lipid peroxidation were remarkably elevated after 8 days of salt stress, confirming salt-induced oxidative stress. Besides photoinhibition of the PSII reaction center, the PSII donor side was also impaired under salt stress, as a K step emerged in the prompt chlorophyll transient, but the PSII acceptor side was more vulnerable, considering the decreased probability of an electron movement beyond the primary quinone (ETo/TRo) upon depressed upstream electron donation. The declined performance of entire PSII components inhibited electron inflow to PSI, but severe PSI photoinhibition was not averted. Notably, PSI photoinhibition elevated the excitation pressure of PSII (1-qP) by inhibiting the PSII acceptor side due to the negative and positive correlation of △MR/MR0 with 1-qP and ETo/TRo, respectively. Furthermore, excessive reduction of PSII acceptors side due to PSI photoinhibition was simulated by applying a specific inhibitor blocking electron transport beyond primary quinone, demonstrating that PSII photoinhibition was actually accelerated by PSI photoinhibition under salt stress. In conclusion, PSII and PSI vulnerabilities were proven in Jerusalem artichoke under salt stress, and PSII inactivation, which was a passive consequence of PSI photoinhibition, hardly helped protect PSI. As a salt-sensitive species, Jerusalem artichoke was recommended to be planted in non-saline marginal land or mild saline land with soil desalination measures.
Collapse
Affiliation(s)
- Kun Yan
- School of Agriculture, Ludong University, Yantai, China
| | - Huimin Mei
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Xiaoyan Dong
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (CAS), Yantai, China
| | - Shiwei Zhou
- School of Agriculture, Ludong University, Yantai, China
| | - Jinxin Cui
- School of Agriculture, Ludong University, Yantai, China
| | - Yanhong Sun
- School of Environmental and Material Engineering, Yantai University, Yantai, China
| |
Collapse
|
5
|
Zhang X, Feng Y, Jing T, Liu X, Ai X, Bi H. Melatonin Promotes the Chilling Tolerance of Cucumber Seedlings by Regulating Antioxidant System and Relieving Photoinhibition. FRONTIERS IN PLANT SCIENCE 2021; 12:789617. [PMID: 34956288 PMCID: PMC8695794 DOI: 10.3389/fpls.2021.789617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/10/2021] [Indexed: 05/31/2023]
Abstract
Chilling adversely affects the photosynthesis of thermophilic plants, which further leads to a decline in growth and yield. The role of melatonin (MT) in the stress response of plants has been investigated, while the mechanisms by which MT regulates the chilling tolerance of chilling-sensitive cucumber remain unclear. This study demonstrated that MT positively regulated the chilling tolerance of cucumber seedlings and that 1.0 μmol⋅L-1 was the optimum concentration, of which the chilling injury index, electrolyte leakage (EL), and malondialdehyde (MDA) were the lowest, while growth was the highest among all treatments. MT triggered the activity and expression of antioxidant enzymes, which in turn decreased hydrogen peroxide (H2O2) and superoxide anion (O2 ⋅-) accumulation caused by chilling stress. Meanwhile, MT attenuated the chilling-induced decrease, in the net photosynthetic rate (Pn) and promoted photoprotection for both photosystem II (PSII) and photosystem I (PSI), regarding the higher maximum quantum efficiency of PSII (Fv/Fm), actual photochemical efficiency (ΦPSII), the content of active P700 (ΔI/I0), and photosynthetic electron transport. The proteome analysis and western blot data revealed that MT upregulated the protein levels of PSI reaction center subunits (PsaD, PsaE, PsaF, PsaH, and PsaN), PSII-associated protein PsbA (D1), and ribulose-1,5-bisphosphate carboxylase or oxygenase large subunit (RBCL) and Rubisco activase (RCA). These results suggest that MT enhances the chilling tolerance of cucumber through the activation of antioxidant enzymes and the induction of key PSI-, PSII-related and carbon assimilation genes, which finally alleviates damage to the photosynthetic apparatus and decreases oxidative damage to cucumber seedlings under chilling stress.
Collapse
Affiliation(s)
| | | | | | | | | | - Huangai Bi
- State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
| |
Collapse
|
6
|
Ma L, Li G. Arabidopsis FAR-RED ELONGATED HYPOCOTYL3 negatively regulates carbon starvation responses. PLANT, CELL & ENVIRONMENT 2021; 44:1816-1829. [PMID: 33715163 DOI: 10.1111/pce.14044] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 03/01/2021] [Accepted: 03/06/2021] [Indexed: 06/12/2023]
Abstract
Light is one of the most important environmental factors that affects various cellular processes in plant growth and development; it is also crucial for the metabolism of carbohydrates as it provides the energy source for photosynthesis. Under extended darkness conditions, carbon starvation responses are triggered by depletion of stored energy. Although light rapidly inhibits starvation responses, the molecular mechanisms by which light signalling affects this process remain largely unknown. In this study, we showed that the Arabidopsis thaliana light signalling protein FAR-RED ELONGATED HYPOCOTYL3 (FHY3) and its homolog FAR-RED IMPAIRED RESPONSE1 (FAR1) are essential for plant survival after extended darkness treatment at both seedling and adult stages. Transmission electron microscopy analyses revealed that disruption of both FHY3 and FAR1 resulted in destruction of chloroplast envelopes and thylakoid membranes under extended darkness conditions. Furthermore, treatment with sucrose, but not glucose, completely rescued carbon starvation-induced cell death in the rosette leaves and arrested early seedling establishment in the fhy3 far1 plants. We thus concluded that the light signalling proteins FHY3 and FAR1 negatively regulate carbon starvation responses in Arabidopsis.
Collapse
Affiliation(s)
- Lin Ma
- School of Biological Science and Technology, University of Jinan, Jinan, China
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Gang Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| |
Collapse
|
7
|
Kaiwen G, Zisong X, Yuze H, Qi S, Yue W, Yanhui C, Jiechen W, Wei L, Huihui Z. Effects of salt concentration, pH, and their interaction on plant growth, nutrient uptake, and photochemistry of alfalfa ( Medicago sativa) leaves. PLANT SIGNALING & BEHAVIOR 2020; 15:1832373. [PMID: 33073686 PMCID: PMC7671061 DOI: 10.1080/15592324.2020.1832373] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
In order to explore the main limiting factors affecting the growth and physiological function of alfalfa under salt and alkali stress, the effect of the salt and alkali stress on the growth and physiological function of alfalfa was studied. The results showed that effects of the excessive salt concentration (100 and 200 mM) on the growth and physiological characteristics were significantly greater than that of pH (7.0 and 9.0). Under 100 mM salt stress, there was no significant difference in the growth and photosynthetic function between pH 9.0 and pH 7.0. Under the 200 mM salt concentration the absorption of Na+ by alfalfa treated at the pH 9.0 did not increase significantly compared with absorption at the pH 7.0. However, the higher pH directly reduced the root activity, leaf's water content, and N-P-K content also decreased significantly. The PSII and PSI activities decreased with increasing the salt concentration, especially the damage degree of PSI. Although the photoinhibition of PSII was not significant, PSII donor and electron transfer from the QA to QB of the PSII receptor sides was inhibited. In a word, alfalfa showed relatively strong salt tolerance capacity, at the 100 mM salt concentration, even when the pH reached 9.0. Thus, the effect on the growth and photosynthetic function was not significant. However, at 200 mM salt concentration, pH 9.0 treatment caused damage to root system and the photosynthetic function in leaves of alfalfa was seriously injured.
Collapse
Affiliation(s)
- Guo Kaiwen
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Xu Zisong
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Huo Yuze
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Sun Qi
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Wang Yue
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Che Yanhui
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Wang Jiechen
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Li Wei
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Zhang Huihui
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
- CONTACT Zhang Huihui College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China; Li Wei
| |
Collapse
|
8
|
Pan DY, Fu X, Zhang XW, Liu FJ, Bi HG, Ai XZ. Hydrogen sulfide is required for salicylic acid-induced chilling tolerance of cucumber seedlings. PROTOPLASMA 2020; 257:1543-1557. [PMID: 32621044 DOI: 10.1007/s00709-020-01531-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 06/29/2020] [Indexed: 05/03/2023]
Abstract
Salicylic acid (SA) and hydrogen sulfide (H2S) have been proved to be multifunctional signal molecules to participate in the response of plants to abiotic stresses. However, it is still unclear whether there is interaction between SA and H2S in response to chilling intensity of cucumber seedlings. Here, we found SA was sensitive to chilling intensity. Under normal condition, NaHS (H2S donor) or removing endogenous H2S with hypotaurine (HT, a specific scavenger of H2S) and DL-propargylglycine (PAG, a specific inhibitor of H2S) has no effect on endogenous SA level; however, SA induced endogenous H2S content and activated the activities and mRNA level of L-/D-cysteine desulfhydrase (L-/D-CD), and inhibiting endogenous SA with paclobutrazol (PAC) or 2-aminoindan-2-phosphonic acid (AIP) blocked this effect, implying H2S may play a role after SA signal. Further studies showed that both SA and NaHS notably alleviated chilling injury, which was evidenced by lower electrolyte leakage (EL), MDA content, and ROS accumulation, compared with H2O treatment. Of note, SA and H2S improved the activities and mRNA level of antioxidant enzymes (SOD, POD, CAT, APX, and GR) as well as the contents of AsA and GSH. Additionally, the chilling-response genes (ICE, CBF1, and COR) were obviously upregulated by exogenous SA and NaHS. However, the positive effect of SA on chilling tolerance was inhibited by HT, whereas PAC or AIP did not affect NaHS-induced chilling tolerance. Taken together, the data reveals that H2S acts as a downstream signal of SA-induced chilling tolerance of cucumber via modulating antioxidant system and chilling-response genes.
Collapse
Affiliation(s)
- Dong-Yun Pan
- State Key Laboratory of Crop Biology; Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huang huai Region; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Xin Fu
- State Key Laboratory of Crop Biology; Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huang huai Region; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Xiao-Wei Zhang
- State Key Laboratory of Crop Biology; Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huang huai Region; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Feng-Jiao Liu
- State Key Laboratory of Crop Biology; Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huang huai Region; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Huan-Gai Bi
- State Key Laboratory of Crop Biology; Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huang huai Region; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China.
| | - Xi-Zhen Ai
- State Key Laboratory of Crop Biology; Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huang huai Region; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, Shandong, China.
| |
Collapse
|
9
|
Huihui Z, Xin L, Zisong X, Yue W, Zhiyuan T, Meijun A, Yuehui Z, Wenxu Z, Nan X, Guangyu S. Toxic effects of heavy metals Pb and Cd on mulberry (Morus alba L.) seedling leaves: Photosynthetic function and reactive oxygen species (ROS) metabolism responses. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 195:110469. [PMID: 32179235 DOI: 10.1016/j.ecoenv.2020.110469] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 05/03/2023]
Abstract
To explore the mechanism of how lead (Pb) and cadmium (Cd) stress affects photosynthesis of mulberry (Morus alba L.), we looked at the effects of different concentrations of Pb and Cd stress (at 100 and 200 μmol L-1), which are two heavy metal elements, on leaf chlorophyll (Chl), photosynthesis gas exchange, Chl fluorescence, and reactive oxygen species (ROS) metabolism in mulberry leaves. The results showed that higher concentrations of Pb and Cd reduced leaf Chl content, especially in Chl a where content was more sensitive than in Chl b. Under Pb and Cd stress, the photosynthetic carbon assimilation capacity of mulberry leaves was reduced, which was a consequence of combined limitations of stomatal and non-stomatal factors. The main non-stomatal factors were decreased photosystem II (PSII) and photosystem I (PSI) activity and carboxylation efficiency (CE). Damage to the donor side of the PSII reaction center was greater than the acceptor side. After being treated with 100 μmol L-1 of Pb and Cd, mulberry leaves continued to be able to dissipate excess excitation energy by starting non-photochemical quenching (NPQ), but when Pb and Cd concentrations were increased to 200 μmol L-1, the protection mechanism that depends on NPQ was impaired. Excessive excitation energy from chloroplasts promoted a great increase of ROS, such as superoxide anion (O2•-) and H2O2. Moreover, under high Pb and Cd stress, superoxide dismutase (SOD) and ascorbate peroxidase (APX) were also inhibited to some extent, and excessive ROS also resulted in a significantly higher degree of oxidative damage. Compared with Cd, the effect of Pb stress at the same concentration level displayed a significantly lower impact on Chl content, photosynthetic carbon assimilation, and stomatal conductance. Meanwhile, Pb stress mainly damaged activity of the oxygen-evolving complex (OEC) located on PSII donor side, but it reduced the electronic pressure on the PSII acceptor side and PSI. Furthermore, under Pb stress, the NPQ, SOD, and APX activity were all significantly higher than those under Cd stress. Thus under Pb stress, the degree of photoinhibition and oxidative damage of PSII and PSI in mulberry leaves were significantly lower than under Cd stress.
Collapse
Affiliation(s)
- Zhang Huihui
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China; Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Li Xin
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China; Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Xu Zisong
- College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Wang Yue
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Teng Zhiyuan
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - An Meijun
- Developmental Center of Heilongjiang Provincial Sericulture and Bee Industry, Harbin, Heilongjiang, China
| | - Zhang Yuehui
- Developmental Center of Heilongjiang Provincial Sericulture and Bee Industry, Harbin, Heilongjiang, China
| | - Zhu Wenxu
- School of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Xu Nan
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China; Natural Resources and Ecology Institute, Heilongjiang Sciences Academy, Harbin, Heilongjiang, China.
| | - Sun Guangyu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China.
| |
Collapse
|
10
|
Yan K, He W, Bian L, Zhang Z, Tang X, An M, Li L, Han G. Salt adaptability in a halophytic soybean (Glycine soja) involves photosystems coordination. BMC PLANT BIOLOGY 2020; 20:155. [PMID: 32276592 PMCID: PMC7149873 DOI: 10.1186/s12870-020-02371-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 03/30/2020] [Indexed: 05/11/2023]
Abstract
BACKGROUND Glycine soja is a halophytic soybean native to saline soil in Yellow River Delta, China. Photosystem I (PSI) performance and the interaction between photosystem II (PSII) and PSI remain unclear in Glycine soja under salt stress. This study aimed to explore salt adaptability in Glycine soja in terms of photosystems coordination. RESULTS Potted Glycine soja was exposed to 300 mM NaCl for 9 days with a cultivated soybean, Glycine max, as control. Under salt stress, the maximal photochemical efficiency of PSII (Fv/Fm) and PSI (△MR/MR0) were significantly decreased with the loss of PSI and PSII reaction center proteins in Glycine max, and greater PSI vulnerability was suggested by earlier decrease in △MR/MR0 than Fv/Fm and depressed PSI oxidation in modulated 820 nm reflection transients. Inversely, PSI stability was defined in Glycine soja, as △MR/MR0 and PSI reaction center protein abundance were not affected by salt stress. Consistently, chloroplast ultrastructure and leaf lipid peroxidation were not affected in Glycine soja under salt stress. Inhibition on electron flow at PSII acceptor side helped protect PSI by restricting electron flow to PSI and seemed as a positive response in Glycine soja due to its rapid recovery after salt stress. Reciprocally, PSI stability aided in preventing PSII photoinhibition, as the simulated feedback inhibition by PSI inactivation induced great decrease in Fv/Fm under salt stress. In contrast, PSI inactivation elevated PSII excitation pressure through inhibition on PSII acceptor side and accelerated PSII photoinhibition in Glycine max, according to the positive and negative correlation of △MR/MR0 with efficiency that an electron moves beyond primary quinone and PSII excitation pressure respectively. CONCLUSION Therefore, photosystems coordination depending on PSI stability and rapid response of PSII acceptor side contributed to defending salt-induced oxidative stress on photosynthetic apparatus in Glycine soja. Photosystems interaction should be considered as one of the salt adaptable mechanisms in this halophytic soybean.
Collapse
Affiliation(s)
- Kun Yan
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences(CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong, 264003, P. R. China.
| | - Wenjun He
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences(CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong, 264003, P. R. China
| | - Lanxing Bian
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences(CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong, 264003, P. R. China
- College of Life Sciences, Yantai University, Yantai, 264005, P. R. China
| | - Zishan Zhang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Xiaoli Tang
- School of Agriculture, Ludong University, Yantai, 264025, P. R. China
| | - Mengxin An
- School of Agriculture, Ludong University, Yantai, 264025, P. R. China
| | - Lixia Li
- College of Life Sciences, Yantai University, Yantai, 264005, P. R. China
| | - Guangxuan Han
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences(CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong, 264003, P. R. China.
| |
Collapse
|
11
|
Faseela P, Puthur JT. Intraspecific variation in sensitivity of high yielding rice varieties towards UV-B radiation. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2019; 25:727-740. [PMID: 31168235 PMCID: PMC6522621 DOI: 10.1007/s12298-019-00646-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/19/2018] [Accepted: 01/28/2019] [Indexed: 05/14/2023]
Abstract
Effective screening of thirteen commonly cultivated rice (Oryza sativa L.) varieties was carried out to evaluate the varietal-specific differences in morphological, physiological and biochemical responses to various doses of UV-B irradiation (7, 14, 21 and 28 kJ m-2d-1). Determination of UV-B tolerant rice varieties would be helpful in selecting a suitable variety for the areas experiencing higher influx of UV-B radiation. Based on the initial screening of thirteen rice varieties, carried out by analyzing shoot length, fresh weight, photosynthetic pigments and the rate of lipid peroxidation under various doses of UV-B, it was found that Mangalamahsuri, Aathira, Kanchana, Jyothi and Annapoorna were tolerant lines and Neeraja, Swetha, Swarnaprabha and Aiswarya were the sensitive ones. Further screening of these nine varieties was done by analyzing primary metabolites (total protein, soluble sugar and proline content) and non enzymatic antioxidants (ascorbate and glutathione) involved in free radical scavenging mechanism to mitigate the negative effects of UV-B irradiation. Based on the cumulative stress response index (CSRI), the sum of relative individual component responses (total protein, soluble sugar, proline, ascorbate and glutathione content) at each UV-B treatment and total stress response index (TSRI), the sum of CSRI of all the four UV-B treatments for each variety, nine rice varieties selected after primary screening were classified as tolerant (Mangalamahsuri, Aathira and Kanchana), intermediate (Jyothi, Annapoorna, Neeraja and Swetha) and sensitive (Swarnaprabha and Aiswarya).
Collapse
Affiliation(s)
- Parammal Faseela
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, Malappuram, Kerala 673635 India
| | - Jos Thomas Puthur
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, Malappuram, Kerala 673635 India
| |
Collapse
|
12
|
Zhang R, Huang G, Wang L, Zhou Q, Huang X. Effects of elevated ultraviolet-B radiation on root growth and chemical signaling molecules in plants. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:683-690. [PMID: 30658304 DOI: 10.1016/j.ecoenv.2019.01.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 12/26/2018] [Accepted: 01/09/2019] [Indexed: 05/13/2023]
Abstract
Ozone layer depletion leads to elevated ultraviolet-B (UV-B) radiation, which affects plant growth; however, little is known about the relationship between root growth and signaling molecules in roots. Therefore, in this work, simulated UV-B radiation was used to study the effects of elevated UV-B radiation on root growth of soybean seedlings and changes in the content of signaling molecules in roots. The results showed that compared with the control, the 2.63 kJ m-2 d-1 and 6.17 kJ m-2 d-1 elevated UV-B radiation treatments inhibited root growth, and root growth parameters (total root length, root surface area, root volume, average diameter, root tip number, and root dry weight) all decreased. For root signaling molecules, the content of nitric oxide, reactive oxygen species, abscisic acid, salicylic acid, and jasmonic acid increased, and the content of auxin, cytokinin, and gibberellin decreased. The above indices changed more significantly under the 6.17 kJ m-2 d-1 treatment. After withdrawal of the exposure, the above indices could be restored to a certain extent. These data indicated that UV-B radiation interfered with root growth by affecting the content of signaling molecules in roots, and the degree of the effects was related to the intensity of UV-B radiation. The results from this study provide a theoretical basis for studying the preliminary mechanism of elevated UV-B radiation on root growth and possible pathways that can mitigate UV-B radiation damage for root growth. ONE SENTENCE SUMMARY: The effects of elevated UV-B on root growth of soybean seedlings were regulated by signaling molecules, and the degree of the effects was related to the intensity of UV-B radiation.
Collapse
Affiliation(s)
- Rutao Zhang
- State Key Laboratory of Food Science and Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Guangrong Huang
- State Key Laboratory of Food Science and Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Lihong Wang
- State Key Laboratory of Food Science and Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Qing Zhou
- State Key Laboratory of Food Science and Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Cooperative Innovation Center of Water Treatment Technology and Materials, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Xiaohua Huang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, China.
| |
Collapse
|
13
|
Liu P, Li Q, Gao Y, Wang H, Chai L, Yu H, Jiang W. A New Perspective on the Effect of UV-B on l-Ascorbic Acid Metabolism in Cucumber Seedlings. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4444-4452. [PMID: 30939238 DOI: 10.1021/acs.jafc.9b00327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study aimed to examine the effects of UV-B on AsA and gene expression in cucumber seedlings. Particular emphasis was placed on identifying genes that were responsive to UV-B to increase AsA levels and elucidate the key UV-B response pathway. We found that the activities of myo-inositol oxygenase (MIOX), galactono-1,4-lactone dehydrogenase (GLDH), ascorbate oxidase (AO), ascorbate peroxidase (APX), glutathione reductase (GR), dehydroascorbate reductase (DHAR), and the transcript levels of CsMIOX1, CsGLDH, CsAO2, CsAO4, CsGR1, CsAPX5, and CsDHAR1 significantly increased with UV-B exposure. These observations indicate that UV-B induces the expression of genes involved in d-mannose/l-galactose and myo-inositol pathways and the ascorbate-glutathione system. Moreover, several genes related to the low and high UV-B fluence responses were considered. CsHY5 and CsMYB60 were involved with the low-fluence response and appeared to be responsive from 2 to 28 h. Together, these data show that these genes respond to UV-B to increase AsA levels through the low-fluence UV-B response pathway.
Collapse
Affiliation(s)
- Peng Liu
- Institute of Vegetables and Flowers , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
- College of Horticulture , China Agricultural University , Beijing 100193 , People's Republic of China
| | - Qiang Li
- Institute of Vegetables and Flowers , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Yinan Gao
- College of Horticulture and Landscape , Tianjin Agricultural University , Tianjin 300000 , People's Republic of China
| | - Heng Wang
- Institute of Vegetables and Flowers , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Lin Chai
- Institute of Vegetables and Flowers , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Hongjun Yu
- Institute of Vegetables and Flowers , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Weijie Jiang
- Institute of Vegetables and Flowers , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| |
Collapse
|
14
|
Coordinated downregulation of the photosynthetic apparatus as a protective mechanism against UV exposure in the diatom Corethron hystrix. Appl Microbiol Biotechnol 2019; 103:1837-1850. [PMID: 30617536 DOI: 10.1007/s00253-018-9544-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/07/2018] [Accepted: 11/25/2018] [Indexed: 10/27/2022]
Abstract
The effect of ultraviolet radiation (UVR) on photosynthetic efficiency and the resulting mechanisms against UV exposure employed by phytoplankton are not completely understood. To address this knowledge gap, we developed a novel close-coupled, wavelength-configurable platform designed to produce precise and repeatable in vitro irradiation of Corethron hystrix, a member of a genera found abundantly in the Southern Ocean where UV exposure is high. We aimed to determine its metabolic, protective, and repair mechanisms as a function of varying levels of specific electromagnetic energy. Our results show that the physiological responses to each energy level of UV have a negative linear decrease in the photosynthetic efficiency of photosystem II proportional to UV intensity, corresponding to a large increase in the turnover time of quinone reoxidation. Gene expression changes of photosystem II-related reaction center proteins D1, CP43, and CP47 showed coordinated downregulation whereas the central metabolic pathway demonstrated mixed expression of up and downregulated transcripts after UVR exposure. These results suggest that while UVR may damage photosynthetic machinery, oxidative damage may limit production of new photosynthetic and electron transport complexes as a result of UVR exposure.
Collapse
|
15
|
Yan K, Bian T, He W, Han G, Lv M, Guo M, Lu M. Root Abscisic Acid Contributes to Defending Photoinibition in Jerusalem Artichoke ( Helianthus tuberosus L.) under Salt Stress. Int J Mol Sci 2018; 19:E3934. [PMID: 30544576 PMCID: PMC6321411 DOI: 10.3390/ijms19123934] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 11/29/2018] [Accepted: 12/04/2018] [Indexed: 11/24/2022] Open
Abstract
The aim of the study was to examine the role of root abscisic acid (ABA) in protecting photosystems and photosynthesis in Jerusalem artichoke against salt stress. Potted plants were pretreated by a specific ABA synthesis inhibitor sodium tungstate and then subjected to salt stress (150 mM NaCl). Tungstate did not directly affect root ABA content and photosynthetic parameters, whereas it inhibited root ABA accumulation and induced a greater decrease in photosynthetic rate under salt stress. The maximal photochemical efficiency of PSII (Fv/Fm) significantly declined in tungstate-pretreated plants under salt stress, suggesting photosystem II (PSII) photoinhibition appeared. PSII photoinhibition did not prevent PSI photoinhibition by restricting electron donation, as the maximal photochemical efficiency of PSI (ΔMR/MR₀) was lowered. In line with photoinhibition, elevated H₂O₂ concentration and lipid peroxidation corroborated salt-induced oxidative stress in tungstate-pretreated plants. Less decrease in ΔMR/MR₀ and Fv/Fm indicated that PSII and PSI in non-pretreated plants could maintain better performance than tungstate-pretreated plants under salt stress. Consistently, greater reduction in PSII and PSI reaction center protein abundance confirmed the elevated vulnerability of photosystems to salt stress in tungstate-pretreated plants. Overall, the root ABA signal participated in defending the photosystem's photoinhibition and protecting photosynthesis in Jerusalem artichoke under salt stress.
Collapse
Affiliation(s)
- Kun Yan
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Tiantian Bian
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
- School of Life Sciences, Ludong University, Yantai 264025, China.
| | - Wenjun He
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Guangxuan Han
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Mengxue Lv
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Mingzhu Guo
- College of Life Sciences, Yantai University, Yantai 264005, China.
| | - Ming Lu
- College of Life Sciences, Yantai University, Yantai 264005, China.
| |
Collapse
|
16
|
Yan K, Zhao S, Cui M, Han G, Wen P. Vulnerability of photosynthesis and photosystem I in Jerusalem artichoke (Helianthus tuberosus L.) exposed to waterlogging. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 125:239-246. [PMID: 29477087 DOI: 10.1016/j.plaphy.2018.02.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 02/13/2018] [Accepted: 02/13/2018] [Indexed: 05/25/2023]
Abstract
Jerusalem artichoke (Helianthus tuberosus L.) is an important energy crop for utilizing coastal marginal land. This study was to investigate waterlogging tolerance of Jerusalem artichoke through photosynthetic diagnose with emphasis on photosystem II (PSII) and photosystem I (PSI) performance. Potted plants were subjected to severe (liquid level 5 cm above vermiculite surface) and moderate (liquid level 5 cm below vermiculite surface) waterlogging for 9 days. Large decreased photosynthetic rate suggested photosynthesis vulnerability upon waterlogging. After 7 days of severe waterlogging, PSII and PSI photoinhibition arose, indicated by significant decrease in the maximal photochemical efficiency of PSII (Fv/Fm) and PSI (△MR/MR0), and PSI seemed more vulnerable because of greater decrease in △MR/MR0 than Fv/Fm. In line with decreased △MR/MR0 and unchanged Fv/Fm after 9 days of moderate waterlogging, the amount of PSI reaction center protein rather than PSII reaction center protein was lowered, confirming greater PSI vulnerability. According to positive correlation between △MR/MR0 and efficiency that an electron moves beyond primary quinone and negative correlation between △MR/MR0 and PSII excitation pressure, PSI inactivation elevated PSII excitation pressure by depressing electron transport at PSII acceptor side. Thus, PSI vulnerability induced PSII photoinhibition and endangered the stability of whole photosynthetic apparatus under waterlogging. In agreement with photosystems photoinhibition, elevated H2O2 concentration and lipid peroxidation in the leaves corroborated waterlogging-induced oxidative stress. In conclusion, Jerusalem artichoke is a waterlogging sensitive species in terms of photosynthesis and PSI vulnerability. Consistently, tuber yield was tremendously reduced by waterlogging, confirming waterlogging sensitivity of Jerusalem artichoke.
Collapse
Affiliation(s)
- Kun Yan
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China.
| | - Shijie Zhao
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Mingxing Cui
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
| | - Guangxuan Han
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China.
| | - Pei Wen
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| |
Collapse
|
17
|
Yan K, Han G, Ren C, Zhao S, Wu X, Bian T. Fusarium solani Infection Depressed Photosystem Performance by Inducing Foliage Wilting in Apple Seedlings. FRONTIERS IN PLANT SCIENCE 2018; 9:479. [PMID: 29868040 PMCID: PMC5949536 DOI: 10.3389/fpls.2018.00479] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/28/2018] [Indexed: 05/18/2023]
Abstract
Fusarium fungi are soil-borne pathogens, and the pathological effects on plant photosystems remain unclear. This study aimed to deeply reveal pathological characterization in apple seedlings infected with Fusarium solani by investigating photosystems performance and interaction. Roots were immersed in conidial suspension for inoculation. Thereafter, prompt and delayed chlorophyll a fluorescence and modulated 820 nm reflection were simultaneously detected. After 30 days of infection, leaf relative water content and dry weight were remarkably decreased by 55.7 and 47.1%, suggesting that the infected seedlings were subjected to Fusarium-induced water deficit stress. PSI reaction center was more susceptible than PSII reaction center in infected seedlings due to greater decrease in the maximal photochemical efficiency of PSI than that of PSII, but PSI reaction center injury was aggravated slowly, as PSII injury could partly protect PSI by restricting electron donation. PSII donor and acceptor sides were also damaged after 20 days of infection, and the restricted electron donation induced PSII and PSI disconnection by blocking PSI re-reduction. In accordance with greater damage of PSI reaction center, PSI oxidation was also suppressed. Notably, significantly increased efficiency of electron transport from plastoquinone (PQ) to PSI acceptors (REo/ETo) after 20 days of infection suggested greater inhibition on PQ reduction than re-oxidation, and the protection for PSI acceptors might alleviate the reduction of electron transport efficiency beyond PQ upon damaged PSI reaction center. Lowered delayed fluorescence in microsecond domain verified PSII damage in infected seedlings, and elevated delayed fluorescence in sub-millisecond domain during PQ reduction process conformed to increased REo/ETo. In conclusion, F. solani infection depressed PSII and PSI performance and destroyed their coordination by inducing pathological wilting in apple seedlings. It may be a pathogenic mechanism of Fusarium to induce plant photosystems damage.
Collapse
Affiliation(s)
- Kun Yan
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
- *Correspondence: Kun Yan, Shijie Zhao,
| | - Guangxuan Han
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Chenggang Ren
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Shijie Zhao
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- *Correspondence: Kun Yan, Shijie Zhao,
| | - Xiaoqing Wu
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Shandong Academy of Sciences, Jinan, China
| | - Tiantian Bian
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
- School of Life Sciences, Ludong University, Yantai, China
| |
Collapse
|
18
|
Tan T, Sun Y, Peng X, Wu G, Bao F, He Y, Zhou H, Lin H. ABSCISIC ACID INSENSITIVE3 Is Involved in Cold Response and Freezing Tolerance Regulation in Physcomitrella patens. FRONTIERS IN PLANT SCIENCE 2017; 8:1599. [PMID: 28955377 PMCID: PMC5601040 DOI: 10.3389/fpls.2017.01599] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 08/31/2017] [Indexed: 05/08/2023]
Abstract
Synopsis This work demonstrates that PpABI3 contributes to freezing tolerance regulation in Physcomitrella patens. Transcription factor ABSCISIC ACID INSENSITIVE3 (ABI3) is known to play a major role in regulating seed dormancy, germination, seedling development as well as stress responses. ABI3 is conserved among land plants; however, its roles in non-seed plants under stress conditions have not been well characterized. In this study, we report that ABI3 is involved in freezing tolerance regulation during cold acclimation at least in part through ABA signaling pathway in moss Physcomitrella patens (P. patens). Deletion of PpABI3 (Δabi3-1) compromises the induction of genes related to cold response and antioxidative protection, resulting in reduced accumulation of cryoprotectants and antioxidants. In addition, photosystem II (PSII) activity is repressed in Δabi3-1 during cold acclimation partially due to alternations of photosynthetic protein complexes compositions. The gametophyte of Δabi3-1 displays severe growth inhibition and developmental deficiency under low temperature condition, while two independent complementary lines display phenotypes similar to that of wild-type P. patens (WT). Furthermore, the freezing tolerance of Δabi3-1 was significantly affected by deletion of PpABI3. These data revealed that PpABI3 plays an important role in low temperature response and freezing tolerance in P. patens.
Collapse
Affiliation(s)
- Tinghong Tan
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
| | - Yanni Sun
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
| | - Xingji Peng
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
| | - Guochun Wu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
| | - Fang Bao
- School of Life Sciences, Capital Normal UniversityBeijing, China
| | - Yikun He
- School of Life Sciences, Capital Normal UniversityBeijing, China
| | - Huapeng Zhou
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
- *Correspondence: Huapeng Zhou
| | - Honghui Lin
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
- Honghui Lin
| |
Collapse
|