1
|
Lv X, Yao Q, Mao F, Liu M, Wang Y, Wang X, Gao Y, Wang Y, Liao S, Wang P, Huang S. Heat stress and sexual reproduction in maize: unveiling the most pivotal factors and the greatest opportunities. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:4219-4243. [PMID: 38183327 DOI: 10.1093/jxb/erad506] [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: 09/27/2023] [Accepted: 01/05/2024] [Indexed: 01/08/2024]
Abstract
The escalation in the intensity, frequency, and duration of high-temperature (HT) stress is currently unparalleled, which aggravates the challenges for crop production. Yet, the stage-dependent responses of reproductive organs to HT stress at the morphological, physiological, and molecular levels remain inadequately explored in pivotal staple crops. This review synthesized current knowledge regarding the mechanisms by which HT stress induces abnormalities and aberrations in reproductive growth and development, as well as by which it alters the morphology and function of florets, flowering patterns, and the processes of pollination and fertilization in maize (Zea mays L.). We identified the stage-specific sensitivities to HT stress and accurately defined the sensitive period from a time scale of days to hours. The microspore tetrad phase of pollen development and anthesis (especially shortly after pollination) are most sensitive to HT stress, and even brief temperature spikes during these stages can lead to significant kernel loss. The impetuses behind the heat-induced impairments in seed set are closely related to carbon, reactive oxygen species, phytohormone signals, ion (e.g. Ca2+) homeostasis, plasma membrane structure and function, and others. Recent advances in understanding the genetic mechanisms underlying HT stress responses during maize sexual reproduction have been systematically summarized.
Collapse
Affiliation(s)
- Xuanlong Lv
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Qian Yao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Fen Mao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Mayang Liu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Yudong Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Xin Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Yingbo Gao
- Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yuanyuan Wang
- College of Agronomy, South China Agricultural University, Guangdong, China
| | - Shuhua Liao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Pu Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Shoubing Huang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| |
Collapse
|
2
|
Thompson MEH, Raizada MN. The Microbiome of Fertilization-Stage Maize Silks (Style) Encodes Genes and Expresses Traits That Potentially Promote Survival in Pollen/Style Niches and Host Reproduction. Microorganisms 2024; 12:1473. [PMID: 39065240 PMCID: PMC11278993 DOI: 10.3390/microorganisms12071473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Within flowers, the style channel receives pollen and transmits male gametes inside elongating pollen tubes to ovules. The styles of maize/corn are called silks. Fertilization-stage silks possess complex microbiomes, which may partially derive from pollen. These microbiomes lack functional analysis. We hypothesize that fertilization-stage silk microbiomes promote host fertilization to ensure their own vertical transmission. We further hypothesize that these microbes encode traits to survive stresses within the silk (water/nitrogen limitation) and pollen (dehydration/aluminum) habitats. Here, bacteria cultured from fertilization-stage silks of 14 North American maize genotypes underwent genome mining and functional testing, which revealed osmoprotection, nitrogen-fixation, and aluminum-tolerance traits. Bacteria contained auxin biosynthesis genes, and testing confirmed indole compound secretion, which is relevant, since pollen delivers auxin to silks to stimulate egg cell maturation. Some isolates encoded biosynthetic/transport compounds known to regulate pollen tube guidance/growth. The isolates encoded ACC deaminase, which degrades the precursor for ethylene that otherwise accelerates silk senescence. The findings suggest that members of the microbiome of fertilization-stage silks encode adaptations to survive the stress conditions of silk/pollen and have the potential to express signaling compounds known to impact reproduction. Overall, whereas these microbial traits have traditionally been assumed to primarily promote vegetative plant growth, this study proposes they may also play selfish roles during host reproduction.
Collapse
Affiliation(s)
| | - Manish N. Raizada
- Department of Plant Agriculture, University of Guelph, Guelph, ON N1G 2W1, Canada;
| |
Collapse
|
3
|
Pathak PK, Yadav N, Kaladhar VC, Jaiswal R, Kumari A, Igamberdiev AU, Loake GJ, Gupta KJ. The emerging roles of nitric oxide and its associated scavengers-phytoglobins-in plant symbiotic interactions. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:563-577. [PMID: 37843034 DOI: 10.1093/jxb/erad399] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/09/2023] [Indexed: 10/17/2023]
Abstract
A key feature in the establishment of symbiosis between plants and microbes is the maintenance of the balance between the production of the small redox-related molecule, nitric oxide (NO), and its cognate scavenging pathways. During the establishment of symbiosis, a transition from a normoxic to a microoxic environment often takes place, triggering the production of NO from nitrite via a reductive production pathway. Plant hemoglobins [phytoglobins (Phytogbs)] are a central tenant of NO scavenging, with NO homeostasis maintained via the Phytogb-NO cycle. While the first plant hemoglobin (leghemoglobin), associated with the symbiotic relationship between leguminous plants and bacterial Rhizobium species, was discovered in 1939, most other plant hemoglobins, identified only in the 1990s, were considered as non-symbiotic. From recent studies, it is becoming evident that the role of Phytogbs1 in the establishment and maintenance of plant-bacterial and plant-fungal symbiosis is also essential in roots. Consequently, the division of plant hemoglobins into symbiotic and non-symbiotic groups becomes less justified. While the main function of Phytogbs1 is related to the regulation of NO levels, participation of these proteins in the establishment of symbiotic relationships between plants and microorganisms represents another important dimension among the other processes in which these key redox-regulatory proteins play a central role.
Collapse
Affiliation(s)
- Pradeep Kumar Pathak
- National Institute for Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Nidhi Yadav
- National Institute for Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | | | - Rekha Jaiswal
- National Institute for Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Aprajita Kumari
- National Institute for Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Abir U Igamberdiev
- Department of Biology, Memorial University of Newfoundland, St John's, NL, Canada
| | - Gary J Loake
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3BF, UK
- Centre for Engineering Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3BF, UK
| | | |
Collapse
|
4
|
Allagulova CR, Lubyanova AR, Avalbaev AM. Multiple Ways of Nitric Oxide Production in Plants and Its Functional Activity under Abiotic Stress Conditions. Int J Mol Sci 2023; 24:11637. [PMID: 37511393 PMCID: PMC10380521 DOI: 10.3390/ijms241411637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/11/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Nitric oxide (NO) is an endogenous signaling molecule that plays an important role in plant ontogenesis and responses to different stresses. The most widespread abiotic stress factors limiting significantly plant growth and crop yield are drought, salinity, hypo-, hyperthermia, and an excess of heavy metal (HM) ions. Data on the accumulation of endogenous NO under stress factors and on the alleviation of their negative effects under exogenous NO treatments indicate the perspectives of its practical application to improve stress resistance and plant productivity. This requires fundamental knowledge of the NO metabolism and the mechanisms of its biological action in plants. NO generation occurs in plants by two main alternative mechanisms: oxidative or reductive, in spontaneous or enzymatic reactions. NO participates in plant development by controlling the processes of seed germination, vegetative growth, morphogenesis, flower transition, fruit ripening, and senescence. Under stressful conditions, NO contributes to antioxidant protection, osmotic adjustment, normalization of water balance, regulation of cellular ion homeostasis, maintenance of photosynthetic reactions, and growth processes of plants. NO can exert regulative action by inducing posttranslational modifications (PTMs) of proteins changing the activity of different enzymes or transcriptional factors, modulating the expression of huge amounts of genes, including those related to stress tolerance. This review summarizes the current data concerning molecular mechanisms of NO production and its activity in plants during regulation of their life cycle and adaptation to drought, salinity, temperature stress, and HM ions.
Collapse
Affiliation(s)
- Chulpan R Allagulova
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa 450054, Russia
| | - Alsu R Lubyanova
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa 450054, Russia
| | - Azamat M Avalbaev
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa 450054, Russia
| |
Collapse
|
5
|
Niu L, Tang Y, Zhu B, Huang Z, Wang D, Chen Q, Yu J. Nitric oxide promotes adventitious root formation in cucumber under cadmium stress through improving antioxidant system, regulating glycolysis pathway and polyamine homeostasis. FRONTIERS IN PLANT SCIENCE 2023; 14:1126606. [PMID: 36968381 PMCID: PMC10033535 DOI: 10.3389/fpls.2023.1126606] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Cadmium (Cd) as a potentially toxic heavy metal that not only pollutes the environment but also interferes with plant growth. Nitric oxide (NO) regulates plant growth and development as well as abiotic stress response. However, the mechanism underpinning NO-induced adventitious root development under Cd stress remains unclear. In this study, cucumber (Cucumis sativus 'Xinchun No. 4') was used as the experimental material to investigate the effect of NO on the development of adventitious roots in cucumber under Cd stress. Our results revealed that, as compared to Cd stress, 10 μM SNP (a NO donor) could considerably increase the number and length of adventitious roots by 127.9% and 289.3%, respectively. Simultaneously, exogenous SNP significantly increased the level of endogenous NO in cucumber explants under Cd stress. Our results revealed that supplementation of Cd with SNP significantly increased endogenous NO content by 65.6% compared with Cd treatment at 48 h. Furthermore, our study indicated that SNP treatment could improve the antioxidant capacity of cucumber explants under Cd stress by up-regulating the gene expression level of antioxidant enzymes, as well as reducing the levels of malondialdehyde (MDA), hydrogen peroxide (H2O2) and superoxide anion ( O 2 · - ) to alleviate oxidative damage and membrane lipid peroxidation. Application of NO resulted in a decrease of the O 2 · - , MDA, and H2O2 level by 39.6%, 31.4% and 60.8% as compared to Cd-alone treatment, respectively. Besides that, SNP treatment significantly increased the expression level of related genes involved in glycolysis processes and polyamine homeostasis. However, application of NO scavenger 2-(4-carboxy -2-phenyl)-4, 4, 5, 5-tetramethy limidazoline -1-oxyl -3-oxide (cPTIO) and the inhibitor tungstate significantly reversed the positive role of NO in promoting the adventitious root formation under Cd stress. These results suggest that exogenous NO can increase the level of endogenous NO, improve antioxidation ability, promote glycolysis pathway and polyamine homeostasis to enhance the occurrence of adventitious roots in cucumber under Cd stress. In summary, NO can effectively alleviate the damage of Cd stress and significantly promote the development of adventitious root of cucumber under Cd stress.
Collapse
|
6
|
Differential effects of low and high temperature stress on pollen germination and tube length of mango (Mangifera indica L.) genotypes. Sci Rep 2023; 13:611. [PMID: 36635467 PMCID: PMC9837111 DOI: 10.1038/s41598-023-27917-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 01/10/2023] [Indexed: 01/14/2023] Open
Abstract
Mango flowering is highly sensitive to temperature changes. In this research, the maximum values of pollen germination rate (PGR), pollen tube length (PTL) and their cardinal temperatures (Tmin, Topt and Tmax) were estimated by using quadratic equation and modified bilinear model under the conditions of 14-36 °C. The pollen germination rate in four mango varieties ranged from 29.1% ('Apple mango') to 35.5% ('Renong No. 1'); the length of pollen tube ranged from 51.2 μm ('Deshehari') to 56.6 μm ('Jinhuang'). The cardinal temperatures ranges (Tmin, Topt and Tmax) of pollen germination were 20.3-22.8 °C, 26.7-30.6 °C and 30.4-34.3 °C, respectively; similarly, cardinal temperatures (Tmin, Topt and Tmax) of pollen tube growth were 20.3-21.2 °C, 27.9-32.1 °C and 30.2-34.4 °C respectively. Of those, 'Renong No. 1' could maintain relatively high pollen germination rate even at 30 °C, however, 'Deshehari' had the narrowest adaptive temperature range. These results were further confirmed by changes of superoxide dismutase, catalase activity and malondialdehyde content. These results showed that mango flowering was highly sensitive to temperature changes and there were significant differences in pollen germination rate and pollen tube length among different varieties. Current research results were of great significance for the introduction of new mango varieties in different ecological regions, the cultivation and management of mango at the flowering stage and the breeding of new mango varieties.
Collapse
|
7
|
Grenzi M, Bonza MC, Costa A. Signaling by plant glutamate receptor-like channels: What else! CURRENT OPINION IN PLANT BIOLOGY 2022; 68:102253. [PMID: 35780692 DOI: 10.1016/j.pbi.2022.102253] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/24/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
Plant glutamate receptor-like channels (GLRs) are transmembrane proteins that allow the movement of several ions across membranes. In the model plant Arabidopsis, there are 20 GLR isoforms grouped in three clades and, since their discovery, it was hypothesized that GLRs were mainly involved in signaling processes. Indeed, in the last years, several pieces of evidence demonstrate different signaling roles played by GLRs, related to pollen development, sexual reproduction, chemotaxis, root development, regulation of stomatal aperture, and response to pathogens. Recently, GLRs have gained attention for their role in long-distance electric and calcium signaling. In this review, we resume the evidence about the role of GLRs in signaling processes. This role is mostly linked to the GLRs involvement in the regulation of ion fluxes across membranes and, in particular, of calcium, which represents a key second messenger in plant cell responses to both endogenous and exogenous stimuli.
Collapse
Affiliation(s)
- Matteo Grenzi
- Department of Biosciences, University of Milan, Via G. Celoria 26, 20133 Milano, Italy
| | - Maria Cristina Bonza
- Department of Biosciences, University of Milan, Via G. Celoria 26, 20133 Milano, Italy
| | - Alex Costa
- Department of Biosciences, University of Milan, Via G. Celoria 26, 20133 Milano, Italy; Institute of Biophysics, National Research Council of Italy (CNR), Via G. Celoria 26, 20133 Milano, Italy.
| |
Collapse
|
8
|
Anta-Fernández F, Santander-Gordón D, Becerra S, Santamaría R, Díaz-Mínguez JM, Benito EP. Nitric Oxide Metabolism Affects Germination in Botrytis cinerea and Is Connected to Nitrate Assimilation. J Fungi (Basel) 2022; 8:jof8070699. [PMID: 35887455 PMCID: PMC9324006 DOI: 10.3390/jof8070699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 11/16/2022] Open
Abstract
Nitric oxide regulates numerous physiological processes in species from all taxonomic groups. Here, its role in the early developmental stages of the fungal necrotroph Botrytis cinerea was investigated. Pharmacological analysis demonstrated that NO modulated germination, germ tube elongation and nuclear division rate. Experimental evidence indicates that exogenous NO exerts an immediate but transitory negative effect, slowing down germination-associated processes, and that this effect is largely dependent on the flavohemoglobin BCFHG1. The fungus exhibited a “biphasic response” to NO, being more sensitive to low and high concentrations than to intermediate levels of the NO donor. Global gene expression analysis in the wild-type and ΔBcfhg1 strains indicated a situation of strong nitrosative and oxidative stress determined by exogenous NO, which was much more intense in the mutant strain, that the cells tried to alleviate by upregulating several defense mechanisms, including the simultaneous upregulation of the genes encoding the flavohemoglobin BCFHG1, a nitronate monooxygenase (NMO) and a cyanide hydratase. Genetic evidence suggests the coordinated expression of Bcfhg1 and the NMO coding gene, both adjacent and divergently arranged, in response to NO. Nitrate assimilation genes were upregulated upon exposure to NO, and BCFHG1 appeared to be the main enzymatic system involved in the generation of the signal triggering their induction. Comparative expression analysis also showed the influence of NO on other cellular processes, such as mitochondrial respiration or primary and secondary metabolism, whose response could have been mediated by NmrA-like domain proteins.
Collapse
Affiliation(s)
- Francisco Anta-Fernández
- Institute for Agribiotechnology Research (CIALE), Department of Microbiology and Genetics, University of Salamanca, 37008 Salamanca, Spain; (F.A.-F.); (S.B.); (J.M.D.-M.)
| | - Daniela Santander-Gordón
- Facultad de Ingeniería y Ciencias Aplicadas (FICA), Carrera de Ingeniería en Biotecnología, Universidad de las Américas (UDLA), Quito 170513, Ecuador;
| | - Sioly Becerra
- Institute for Agribiotechnology Research (CIALE), Department of Microbiology and Genetics, University of Salamanca, 37008 Salamanca, Spain; (F.A.-F.); (S.B.); (J.M.D.-M.)
| | - Rodrigo Santamaría
- Department of Computer Science, University of Salamanca, 37008 Salamanca, Spain;
| | - José María Díaz-Mínguez
- Institute for Agribiotechnology Research (CIALE), Department of Microbiology and Genetics, University of Salamanca, 37008 Salamanca, Spain; (F.A.-F.); (S.B.); (J.M.D.-M.)
| | - Ernesto Pérez Benito
- Institute for Agribiotechnology Research (CIALE), Department of Microbiology and Genetics, University of Salamanca, 37008 Salamanca, Spain; (F.A.-F.); (S.B.); (J.M.D.-M.)
- Correspondence:
| |
Collapse
|
9
|
Ji Y, Xu M, Liu Z, Yuan H, Lv T, Li H, Xu Y, Si Y, Wang A. NUCLEOCYTOPLASMIC shuttling of ETHYLENE RESPONSE FACTOR 5 mediated by nitric oxide suppresses ethylene biosynthesis in apple fruit. THE NEW PHYTOLOGIST 2022; 234:1714-1734. [PMID: 35254663 PMCID: PMC9313842 DOI: 10.1111/nph.18071] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Nitric oxide (NO) is known to modulate the action of several phytohormones. This includes the gaseous hormone ethylene, but the molecular mechanisms underlying the effect of NO on ethylene biosynthesis are unclear. Here, we observed a decrease in endogenous NO abundance during apple (Malus domestica) fruit development and exogenous treatment of apple fruit with a NO donor suppressed ethylene production, suggesting that NO is a ripening suppressor. Expression of the transcription factor MdERF5 was activated by NO donor treatment. NO induced the nucleocytoplasmic shuttling of MdERF5 by modulating its interaction with the protein phosphatase, MdPP2C57. MdPP2C57-induced dephosphorylation of MdERF5 at Ser260 is sufficient to promote nuclear export of MdERF5. As a consequence of this export, MdERF5 proteins in the cytoplasm interacted with and suppressed the activity of MdACO1, an enzyme that converts 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene. The NO-activated MdERF5 was observed to increase in abundance in the nucleus and bind to the promoter of the ACC synthase gene MdACS1 and directly suppress its transcription. Together, these results suggest that NO-activated nucleocytoplasmic MdERF5 suppresses the action of ethylene biosynthetic genes, thereby suppressing ethylene biosynthesis and limiting fruit ripening.
Collapse
Affiliation(s)
- Yinglin Ji
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province)Key Laboratory of Protected Horticulture (Ministry of Education)National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning)College of HorticultureShenyang Agricultural UniversityShenyang110866China
| | - Mingyang Xu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province)Key Laboratory of Protected Horticulture (Ministry of Education)National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning)College of HorticultureShenyang Agricultural UniversityShenyang110866China
| | - Zhi Liu
- Liaoning Institute of PomologyXiongyue115009China
| | - Hui Yuan
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province)Key Laboratory of Protected Horticulture (Ministry of Education)National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning)College of HorticultureShenyang Agricultural UniversityShenyang110866China
| | - Tianxing Lv
- Liaoning Institute of PomologyXiongyue115009China
| | - Hongjian Li
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province)Key Laboratory of Protected Horticulture (Ministry of Education)National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning)College of HorticultureShenyang Agricultural UniversityShenyang110866China
- Liaoning Institute of PomologyXiongyue115009China
| | - Yaxiu Xu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province)Key Laboratory of Protected Horticulture (Ministry of Education)National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning)College of HorticultureShenyang Agricultural UniversityShenyang110866China
| | - Yajing Si
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province)Key Laboratory of Protected Horticulture (Ministry of Education)National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning)College of HorticultureShenyang Agricultural UniversityShenyang110866China
| | - Aide Wang
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province)Key Laboratory of Protected Horticulture (Ministry of Education)National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning)College of HorticultureShenyang Agricultural UniversityShenyang110866China
| |
Collapse
|
10
|
Berrios L, Rentsch JD. Linking Reactive Oxygen Species (ROS) to Abiotic and Biotic Feedbacks in Plant Microbiomes: The Dose Makes the Poison. Int J Mol Sci 2022; 23:ijms23084402. [PMID: 35457220 PMCID: PMC9030523 DOI: 10.3390/ijms23084402] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/13/2022] [Accepted: 04/13/2022] [Indexed: 12/13/2022] Open
Abstract
In nature, plants develop in complex, adaptive environments. Plants must therefore respond efficiently to environmental stressors to maintain homeostasis and enhance their fitness. Although many coordinated processes remain integral for achieving homeostasis and driving plant development, reactive oxygen species (ROS) function as critical, fast-acting orchestrators that link abiotic and biotic responses to plant homeostasis and development. In addition to the suite of enzymatic and non-enzymatic ROS processing pathways that plants possess, they also rely on their microbiota to buffer and maintain the oxidative window needed to balance anabolic and catabolic processes. Strong evidence has been communicated recently that links ROS regulation to the aggregated function(s) of commensal microbiota and plant-growth-promoting microbes. To date, many reports have put forth insightful syntheses that either detail ROS regulation across plant development (independent of plant microbiota) or examine abiotic–biotic feedbacks in plant microbiomes (independent of clear emphases on ROS regulation). Here we provide a novel synthesis that incorporates recent findings regarding ROS and plant development in the context of both microbiota regulation and plant-associated microbes. Specifically, we discuss various roles of ROS across plant development to strengthen the links between plant microbiome functioning and ROS regulation for both basic and applied research aims.
Collapse
Affiliation(s)
- Louis Berrios
- Department of Biology, Stanford University, Stanford, CA 94305, USA
- Correspondence:
| | - Jeremy D. Rentsch
- Department of Biology, Francis Marion University, Florence, SC 29502, USA;
| |
Collapse
|
11
|
Tsuchiya Y, Nakamura T, Izumi Y, Okazaki K, Shinano T, Kubo Y, Katsuhara M, Sasaki T, Yamamoto Y. Physiological Role of Aerobic Fermentation Constitutively Expressed in an Aluminum-Tolerant Cell Line of Tobacco (Nicotiana tabacum). PLANT & CELL PHYSIOLOGY 2021; 62:1460-1477. [PMID: 34184745 PMCID: PMC8981456 DOI: 10.1093/pcp/pcab098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 06/12/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Aluminum (Al)-tolerant tobacco cell line ALT301 derived from SL (wild-type) hardly exhibits Al-triggered reactive oxygen species (ROS) compared with SL. Molecular mechanism leading to this phenotype was investigated comparatively with SL. Under normal growth condition, metabolome data suggested the activation of glycolysis and lactate fermentation but the repression of the tricarboxylic acid (TCA) cycle in ALT301, namely aerobic fermentation, which seemed to be transcriptionally controlled partly by higher expression of genes encoding lactate dehydrogenase and pyruvate dehydrogenase kinase. Microarray and gene ontology analyses revealed the upregulation of the gene encoding related to APETALA2.3 (RAP2.3)-like protein, one of the group VII ethylene response factors (ERFVIIs), in ALT301. ERFVII transcription factors are known to be key regulators for hypoxia response that promotes substrate-level ATP production by glycolysis and fermentation. ERFVIIs are degraded under normoxia by the N-end rule pathway of proteolysis depending on both oxygen and nitric oxide (NO), and NO is produced mainly by nitrate reductase (NR) in plants. In ALT301, levels of the NR gene expression (NIA2), NR activity and NO production were all lower compared with SL. Consistently, the known effects of NO on respiratory pathways were also repressed in ALT301. Under Al-treatment condition, NO level increased in both lines but was lower in ALT301. These results suggest that the upregulation of the RAP2.3-like gene and the downregulation of the NIA2 gene and resultant NO depletion in ALT301 coordinately enhance aerobic fermentation, which seems to be related to a higher capacity to prevent ROS production in mitochondria under Al stress.
Collapse
Affiliation(s)
- Yoshiyuki Tsuchiya
- Institute of Plant Science and Resources, Okayama
University, Chuo 2-20-1, Kurashiki, Okayama 710-0046, Japan
| | - Takuji Nakamura
- Lowland Crop Rotation System Group, Division of
Lowland Farming Research, Hokkaido Agricultural Research Center (HARC),
NARO, 1 Hitsujigaoka, Toyohira-ku, Sapporo 062-8555, Japan
| | - Yohei Izumi
- Institute of Plant Science and Resources, Okayama
University, Chuo 2-20-1, Kurashiki, Okayama 710-0046, Japan
| | - Keiki Okazaki
- Central Region Agricultural Research Center, NARO
(CARC/NARO), 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8666, Japan
| | - Takuro Shinano
- Laboratory of Plant Nutrition, Graduate School of
Agriculture, Hokkaido University, N9, W9, Kitaku, Sapporo, Hokkaido
060-8589, Japan
| | - Yasutaka Kubo
- Graduate School of Environmental and Life
Science, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Maki Katsuhara
- Institute of Plant Science and Resources, Okayama
University, Chuo 2-20-1, Kurashiki, Okayama 710-0046, Japan
| | - Takayuki Sasaki
- Institute of Plant Science and Resources, Okayama
University, Chuo 2-20-1, Kurashiki, Okayama 710-0046, Japan
| | - Yoko Yamamoto
- Institute of Plant Science and Resources, Okayama
University, Chuo 2-20-1, Kurashiki, Okayama 710-0046, Japan
| |
Collapse
|
12
|
Laggoun F, Ali N, Tourneur S, Prudent G, Gügi B, Kiefer-Meyer MC, Mareck A, Cruz F, Yvin JC, Nguema-Ona E, Mollet JC, Jamois F, Lehner A. Two Carbohydrate-Based Natural Extracts Stimulate in vitro Pollen Germination and Pollen Tube Growth of Tomato Under Cold Temperatures. FRONTIERS IN PLANT SCIENCE 2021; 12:552515. [PMID: 34691089 PMCID: PMC8529017 DOI: 10.3389/fpls.2021.552515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
To date, it is widely accepted by the scientific community that many agricultural regions will experience more extreme temperature fluctuations. These stresses will undoubtedly impact crop production, particularly fruit and seed yields. In fact, pollination is considered as one of the most temperature-sensitive phases of plant development and until now, except for the time-consuming and costly processes of genetic breeding, there is no immediate alternative to address this issue. In this work, we used a multidisciplinary approach using physiological, biochemical, and molecular techniques for studying the effects of two carbohydrate-based natural activators on in vitro tomato pollen germination and pollen tube growth cultured in vitro under cold conditions. Under mild and strong cold temperatures, these two carbohydrate-based compounds significantly enhanced pollen germination and pollen tube growth. The two biostimulants did not induce significant changes in the classical molecular markers implicated in pollen tube growth. Neither the number of callose plugs nor the CALLOSE SYNTHASE genes expression were significantly different between the control and the biostimulated pollen tubes when pollens were cultivated under cold conditions. PECTIN METHYLESTERASE (PME) activities were also similar but a basic PME isoform was not produced or inactive in pollen grown at 8°C. Nevertheless, NADPH oxidase (RBOH) gene expression was correlated with a higher number of viable pollen tubes in biostimulated pollen tubes compared to the control. Our results showed that the two carbohydrate-based products were able to reduce in vitro the effect of cold temperatures on tomato pollen tube growth and at least for one of them to modulate reactive oxygen species production.
Collapse
Affiliation(s)
- Ferdousse Laggoun
- UNIROUEN, Normandie Université, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, SFR NORVEGE FED 4277, Carnot I2C, IRIB, Rouen, France
- Sanofi Pasteur, Val-de-Reuil, France
| | - Nusrat Ali
- Centre Mondial de l’Innovation, Laboratoire Nutrition Végétale, Groupe Roullier, Saint-Malo, France
| | - Sabine Tourneur
- UNIROUEN, Normandie Université, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, SFR NORVEGE FED 4277, Carnot I2C, IRIB, Rouen, France
- Laboratoire de Biologie et Pathologie Végétales, Université de Nantes, Université Bretagne Loire, Nantes, France
| | - Grégoire Prudent
- UNIROUEN, Normandie Université, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, SFR NORVEGE FED 4277, Carnot I2C, IRIB, Rouen, France
| | - Bruno Gügi
- UNIROUEN, Normandie Université, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, SFR NORVEGE FED 4277, Carnot I2C, IRIB, Rouen, France
| | - Marie-Christine Kiefer-Meyer
- UNIROUEN, Normandie Université, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, SFR NORVEGE FED 4277, Carnot I2C, IRIB, Rouen, France
| | - Alain Mareck
- UNIROUEN, Normandie Université, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, SFR NORVEGE FED 4277, Carnot I2C, IRIB, Rouen, France
| | - Florence Cruz
- Centre Mondial de l’Innovation, Laboratoire Nutrition Végétale, Groupe Roullier, Saint-Malo, France
| | - Jean-Claude Yvin
- Centre Mondial de l’Innovation, Laboratoire Nutrition Végétale, Groupe Roullier, Saint-Malo, France
| | - Eric Nguema-Ona
- Centre Mondial de l’Innovation, Laboratoire Nutrition Végétale, Groupe Roullier, Saint-Malo, France
| | - Jean-Claude Mollet
- UNIROUEN, Normandie Université, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, SFR NORVEGE FED 4277, Carnot I2C, IRIB, Rouen, France
| | - Frank Jamois
- Centre Mondial de l’Innovation, Laboratoire Nutrition Végétale, Groupe Roullier, Saint-Malo, France
| | - Arnaud Lehner
- UNIROUEN, Normandie Université, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, SFR NORVEGE FED 4277, Carnot I2C, IRIB, Rouen, France
| |
Collapse
|
13
|
Wong A, Hu N, Tian X, Yang Y, Gehring C. Nitric oxide sensing revisited. TRENDS IN PLANT SCIENCE 2021; 26:885-897. [PMID: 33867269 DOI: 10.1016/j.tplants.2021.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/10/2021] [Accepted: 03/17/2021] [Indexed: 05/22/2023]
Abstract
Nitric oxide (NO) sensing is an ancient trait enabled by hemoproteins harboring a highly conserved Heme-Nitric oxide/OXygen (H-NOX) domain that operates throughout bacteria, fungi, and animal kingdoms including in humans, but that has long thought to be absent in plants. Recently, H-NOX-containing plant hemoproteins mediating crucial NO-dependent responses such as stomatal closure and pollen tube guidance have been reported. There are indications that the detection method that led to these discoveries will uncover many more heme-based NO sensors that operate as regulatory sites in complex proteins. Their characterizations will in turn offer a much more complete picture of plant NO responses at both the molecular and systems level.
Collapse
Affiliation(s)
- Aloysius Wong
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, 88 Daxue Road, Ouhai, Wenzhou, Zhejiang Province 325060, China; Zhejiang Bioinformatics International Science and Technology Cooperation Center, Wenzhou-Kean University, Ouhai, Wenzhou, Zhejiang Province 325060, China.
| | - Ningxin Hu
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, 88 Daxue Road, Ouhai, Wenzhou, Zhejiang Province 325060, China
| | - Xuechen Tian
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, 88 Daxue Road, Ouhai, Wenzhou, Zhejiang Province 325060, China
| | - Yixin Yang
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, 88 Daxue Road, Ouhai, Wenzhou, Zhejiang Province 325060, China; Zhejiang Bioinformatics International Science and Technology Cooperation Center, Wenzhou-Kean University, Ouhai, Wenzhou, Zhejiang Province 325060, China
| | - Christoph Gehring
- Department of Chemistry, Biology, and Biotechnology, University of Perugia, I-06121 Perugia, Italy
| |
Collapse
|
14
|
Kiyono H, Katano K, Suzuki N. Links between Regulatory Systems of ROS and Carbohydrates in Reproductive Development. PLANTS 2021; 10:plants10081652. [PMID: 34451697 PMCID: PMC8401158 DOI: 10.3390/plants10081652] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/03/2021] [Accepted: 08/09/2021] [Indexed: 12/02/2022]
Abstract
To thrive on the earth, highly sophisticated systems to finely control reproductive development have been evolved in plants. In addition, deciphering the mechanisms underlying the reproductive development has been considered as a main research avenue because it leads to the improvement of the crop yields to fulfill the huge demand of foods for the growing world population. Numerous studies revealed the significance of ROS regulatory systems and carbohydrate transports and metabolisms in the regulation of various processes of reproductive development. However, it is poorly understood how these mechanisms function together in reproductive tissues. In this review, we discuss mode of coordination and integration between ROS regulatory systems and carbohydrate transports and metabolisms underlying reproductive development based on the hitherto findings. We then propose three mechanisms as key players that integrate ROS and carbohydrate regulatory systems. These include ROS-dependent programmed cell death (PCD), mitochondrial and respiratory metabolisms as sources of ROS and energy, and functions of arabinogalactan proteins (AGPs). It is likely that these key mechanisms govern the various signals involved in the sequential events required for proper seed production.
Collapse
Affiliation(s)
- Hanako Kiyono
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda, Tokyo 102-8554, Japan; (H.K.); (K.K.)
| | - Kazuma Katano
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda, Tokyo 102-8554, Japan; (H.K.); (K.K.)
- Research Fellow of Japan Society for the Promotion of Science, Chiyoda, Tokyo 102-0083, Japan
| | - Nobuhiro Suzuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda, Tokyo 102-8554, Japan; (H.K.); (K.K.)
- Correspondence: ; Tel.: +81-3-3238-3884
| |
Collapse
|
15
|
GSNOR Contributes to Demethylation and Expression of Transposable Elements and Stress-Responsive Genes. Antioxidants (Basel) 2021; 10:antiox10071128. [PMID: 34356361 PMCID: PMC8301139 DOI: 10.3390/antiox10071128] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 12/19/2022] Open
Abstract
In the past, reactive nitrogen species (RNS) were supposed to be stress-induced by-products of disturbed metabolism that cause oxidative damage to biomolecules. However, emerging evidence demonstrates a substantial role of RNS as endogenous signals in eukaryotes. In plants, S-nitrosoglutathione (GSNO) is the dominant RNS and serves as the •NO donor for S-nitrosation of diverse effector proteins. Remarkably, the endogenous GSNO level is tightly controlled by S-nitrosoglutathione reductase (GSNOR) that irreversibly inactivates the glutathione-bound NO to ammonium. Exogenous feeding of diverse RNS, including GSNO, affected chromatin accessibility and transcription of stress-related genes, but the triggering function of RNS on these regulatory processes remained elusive. Here, we show that GSNO reductase-deficient plants (gsnor1-3) accumulate S-adenosylmethionine (SAM), the principal methyl donor for methylation of DNA and histones. This SAM accumulation triggered a substantial increase in the methylation index (MI = [SAM]/[S-adenosylhomocysteine]), indicating the transmethylation activity and histone methylation status in higher eukaryotes. Indeed, a mass spectrometry-based global histone profiling approach demonstrated a significant global increase in H3K9me2, which was independently verified by immunological detection using a selective antibody. Since H3K9me2-modified regions tightly correlate with methylated DNA regions, we also determined the DNA methylation status of gsnor1-3 plants by whole-genome bisulfite sequencing. DNA methylation in the CG, CHG, and CHH contexts in gsnor1-3 was significantly enhanced compared to the wild type. We propose that GSNOR1 activity affects chromatin accessibility by controlling the transmethylation activity (MI) required for maintaining DNA methylation and the level of the repressive chromatin mark H3K9me2.
Collapse
|
16
|
Breygina M, Klimenko E, Schekaleva O. Pollen Germination and Pollen Tube Growth in Gymnosperms. PLANTS (BASEL, SWITZERLAND) 2021; 10:1301. [PMID: 34206892 PMCID: PMC8309077 DOI: 10.3390/plants10071301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 01/08/2023]
Abstract
Pollen germination and pollen tube growth are common to all seed plants, but these processes first developed in gymnosperms and still serve for their successful sexual reproduction. The main body of data on the reproductive physiology, however, was obtained on flowering plants, and one should be careful to extrapolate the discovered patterns to gymnosperms. In recent years, physiological studies of coniferous pollen have been increasing, and both the features of this group and the similarities with flowering plants have already been identified. The main part of the review is devoted to physiological studies carried out on conifer pollen. The main properties and diversity of pollen grains and pollination strategies in gymnosperms are described.
Collapse
Affiliation(s)
- Maria Breygina
- Department of Plant Physiology, Biological Faculty, Lomonosov Moscow State University, 119991 Moscow, Russia; (E.K.); (O.S.)
| | | | | |
Collapse
|
17
|
Podolyan A, Luneva O, Klimenko E, Breygina M. Oxygen radicals and cytoplasm zoning in growing lily pollen tubes. PLANT REPRODUCTION 2021; 34:103-115. [PMID: 33492520 DOI: 10.1007/s00497-021-00403-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
Differential modulation of ROS content of the microenvironment (O ¯/MnTMPP/OH·) affects growth speed and morphology in lily pollen tubes. Oxygen radicals influence ionic zoning: membrane potential and pH gradients. Recently, redox-regulation of tip growth has been extensively studied, but differential sensitivity of growing cells to particular ROS and their subcellular localization is still unclear. Here, we used specific dyes to provide mapping of H2O2 and O·2¯ in short and long pollen tubes. We found apical accumulation of H2O2 and H2O2-producing organelles in the shank that were not colocalized with O·2¯-producing mitochondria. Differential modulation of ROS content of the germination medium affected both growth speed and pollen tube morphology. Oxygen radicals affected ionic zoning: membrane potential and pH gradients. OH· caused depolarization all along the tube while O·2¯ provoked hyperpolarization and cytoplasm alkalinization. O·2¯accelerated growth and reduced tube diameter, indicating that this ROS can be considered as pollen tube growth stimulator. Serious structural disturbances were observed upon exposure to OH· and ROS quencher MnTMPP: pollen tube growth slowed down and ballooned tips formed in both cases, but OH· affected membrane transport and organelle distribution as well. OH·, thus, can be considered as a negative regulator of pollen tube growth. Pollen tubes, in turn, are able to reduce OH· concentration, which was assessed by electron paramagnetic resonance spectroscopy (EPR).
Collapse
Affiliation(s)
- Alexandra Podolyan
- Lomonosov Moscow State University, Leninskiye gory 1-12, Moscow, Russia, 119991
| | - Oksana Luneva
- Lomonosov Moscow State University, Leninskiye gory 1-12, Moscow, Russia, 119991
| | - Ekaterina Klimenko
- Lomonosov Moscow State University, Leninskiye gory 1-12, Moscow, Russia, 119991
| | - Maria Breygina
- Lomonosov Moscow State University, Leninskiye gory 1-12, Moscow, Russia, 119991.
| |
Collapse
|
18
|
Zhou W, Chi W, Shen W, Dou W, Wang J, Tian X, Gehring C, Wong A. Computational Identification of Functional Centers in Complex Proteins: A Step-by-Step Guide With Examples. FRONTIERS IN BIOINFORMATICS 2021; 1:652286. [PMID: 36303732 PMCID: PMC9581015 DOI: 10.3389/fbinf.2021.652286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/02/2021] [Indexed: 11/13/2022] Open
Abstract
In proteins, functional centers consist of the key amino acids required to perform molecular functions such as catalysis, ligand-binding, hormone- and gas-sensing. These centers are often embedded within complex multi-domain proteins and can perform important cellular signaling functions that enable fine-tuning of temporal and spatial regulation of signaling molecules and networks. To discover hidden functional centers, we have developed a protocol that consists of the following sequential steps. The first is the assembly of a search motif based on the key amino acids in the functional center followed by querying proteomes of interest with the assembled motif. The second consists of a structural assessment of proteins that harbor the motif. This approach, that relies on the application of computational tools for the analysis of data in public repositories and the biological interpretation of the search results, has to-date uncovered several novel functional centers in complex proteins. Here, we use recent examples to describe a step-by-step guide that details the workflow of this approach and supplement with notes, recommendations and cautions to make this protocol robust and widely applicable for the discovery of hidden functional centers.
Collapse
Affiliation(s)
- Wei Zhou
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
| | - Wei Chi
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
| | - Wanting Shen
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
| | - Wanying Dou
- Department of Computer Science, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
| | - Junyi Wang
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
| | - Xuechen Tian
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
| | - Christoph Gehring
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Aloysius Wong
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
- Zhejiang Bioinformatics International Science and Technology Cooperation Center of Wenzhou-Kean University, Wenzhou, China
- *Correspondence: Aloysius Wong
| |
Collapse
|
19
|
Tewari RK, Horemans N, Watanabe M. Evidence for a role of nitric oxide in iron homeostasis in plants. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:990-1006. [PMID: 33196822 DOI: 10.1093/jxb/eraa484] [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: 08/26/2020] [Accepted: 10/13/2020] [Indexed: 05/27/2023]
Abstract
Nitric oxide (NO), once regarded as a poisonous air pollutant, is now understood as a regulatory molecule essential for several biological functions in plants. In this review, we summarize NO generation in different plant organs and cellular compartments, and also discuss the role of NO in iron (Fe) homeostasis, particularly in Fe-deficient plants. Fe is one of the most limiting essential nutrient elements for plants. Plants often exhibit Fe deficiency symptoms despite sufficient tissue Fe concentrations. NO appears to not only up-regulate Fe uptake mechanisms but also makes Fe more bioavailable for metabolic functions. NO forms complexes with Fe, which can then be delivered into target cells/tissues. NO generated in plants can alleviate oxidative stress by regulating antioxidant defense processes, probably by improving functional Fe status and by inducing post-translational modifications in the enzymes/proteins involved in antioxidant defense responses. It is hypothesized that NO acts in cooperation with transcription factors such as bHLHs, FIT, and IRO to regulate the expression of enzymes and proteins essential for Fe homeostasis. However, further investigations are needed to disentangle the interaction of NO with intracellular target molecules that leads to enhanced internal Fe availability in plants.
Collapse
Affiliation(s)
| | - Nele Horemans
- Biosphere Impact Studies, Belgian Nuclear Research Center (SCK•CEN), Boeretang, Mol, Belgium
- Centre for Environmental Sciences, Hasselt University, Agoralaan gebouw D, Diepenbeek, Belgium
| | - Masami Watanabe
- Laboratory of Plant Biochemistry, Chiba University, Inage-ward, Yayoicho, Chiba, Japan
| |
Collapse
|
20
|
Jedelská T, Luhová L, Petřivalský M. Nitric oxide signalling in plant interactions with pathogenic fungi and oomycetes. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:848-863. [PMID: 33367760 DOI: 10.1093/jxb/eraa596] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 12/18/2020] [Indexed: 05/11/2023]
Abstract
Nitric oxide (NO) and reactive nitrogen species have emerged as crucial signalling and regulatory molecules across all organisms. In plants, fungi, and fungi-like oomycetes, NO is involved in the regulation of multiple processes during their growth, development, reproduction, responses to the external environment, and biotic interactions. It has become evident that NO is produced and used as a signalling and defence cue by both partners in multiple forms of plant interactions with their microbial counterparts, ranging from symbiotic to pathogenic modes. This review summarizes current knowledge on the role of NO in plant-pathogen interactions, focused on biotrophic, necrotrophic, and hemibiotrophic fungi and oomycetes. Actual advances and gaps in the identification of NO sources and fate in plant and pathogen cells are discussed. We review the decisive role of time- and site-specific NO production in germination, oriented growth, and active penetration by filamentous pathogens of the host tissues, as well in pathogen recognition, and defence activation in plants. Distinct functions of NO in diverse interactions of host plants with fungal and oomycete pathogens of different lifestyles are highlighted, where NO in interplay with reactive oxygen species governs successful plant colonization, cell death, and establishment of resistance.
Collapse
Affiliation(s)
- Tereza Jedelská
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Olomouc, Czech Republic
| | - Lenka Luhová
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Olomouc, Czech Republic
| | - Marek Petřivalský
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Olomouc, Czech Republic
| |
Collapse
|
21
|
Falak N, Imran QM, Hussain A, Yun BW. Transcription Factors as the "Blitzkrieg" of Plant Defense: A Pragmatic View of Nitric Oxide's Role in Gene Regulation. Int J Mol Sci 2021; 22:E522. [PMID: 33430258 PMCID: PMC7825681 DOI: 10.3390/ijms22020522] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/30/2020] [Accepted: 01/05/2021] [Indexed: 12/24/2022] Open
Abstract
Plants are in continuous conflict with the environmental constraints and their sessile nature demands a fine-tuned, well-designed defense mechanism that can cope with a multitude of biotic and abiotic assaults. Therefore, plants have developed innate immunity, R-gene-mediated resistance, and systemic acquired resistance to ensure their survival. Transcription factors (TFs) are among the most important genetic components for the regulation of gene expression and several other biological processes. They bind to specific sequences in the DNA called transcription factor binding sites (TFBSs) that are present in the regulatory regions of genes. Depending on the environmental conditions, TFs can either enhance or suppress transcriptional processes. In the last couple of decades, nitric oxide (NO) emerged as a crucial molecule for signaling and regulating biological processes. Here, we have overviewed the plant defense system, the role of TFs in mediating the defense response, and that how NO can manipulate transcriptional changes including direct post-translational modifications of TFs. We also propose that NO might regulate gene expression by regulating the recruitment of RNA polymerase during transcription.
Collapse
Affiliation(s)
- Noreen Falak
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea; (N.F.); (Q.M.I.)
| | - Qari Muhammad Imran
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea; (N.F.); (Q.M.I.)
- Department of Medical Biochemistry and Biophysics, Umea University, 90187 Umea, Sweden
| | - Adil Hussain
- Department of Agriculture, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa 23200, Pakistan;
| | - Byung-Wook Yun
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea; (N.F.); (Q.M.I.)
| |
Collapse
|
22
|
Cervantes-Pérez D, Ortega-García A, Medina-Andrés R, Batista-García RA, Lira-Ruan V. Exogenous Nitric Oxide Delays Plant Regeneration from Protoplast and Protonema Development in Physcomitrella patens. PLANTS 2020; 9:plants9101380. [PMID: 33081222 PMCID: PMC7602845 DOI: 10.3390/plants9101380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/04/2020] [Accepted: 10/13/2020] [Indexed: 12/21/2022]
Abstract
Nitric oxide (NO) has been recognized as a major player in the regulation of plant physiology and development. NO regulates cell cycle progression and cell elongation in flowering plants and green algae, although the information about NO function in non-vascular plants is scarce. Here, we analyze the effect of exogenous NO on Physcomitrella patens protonema growth. We find that increasing concentrations of the NO donor sodium nitroprusside (SNP) inhibit protonema relative growth rate and cell length. To further comprehend the effect of NO on moss development, we analyze the effect of SNP 5 and 10 µM on protoplast regeneration and, furthermore, protonema formation compared with untreated plants (control). Isolated protoplasts were left to regenerate for 24 h before starting the SNP treatments that lasted five days. The results show that SNP restrains the protoplast regeneration process and the formation of new protonema cells. When SNP treatments started five days after protoplast isolation, a decrease in cell number per protonema filament was observed, indicating an inhibition of cell cycle progression. Our results show that in non-vascular plants, NO negatively regulates plant regeneration, cell cycle and cell elongation.
Collapse
|
23
|
Corpas FJ, González-Gordo S, Palma JM. Plant Peroxisomes: A Factory of Reactive Species. FRONTIERS IN PLANT SCIENCE 2020; 11:853. [PMID: 32719691 PMCID: PMC7348659 DOI: 10.3389/fpls.2020.00853] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 05/27/2020] [Indexed: 05/19/2023]
Abstract
Plant peroxisomes are organelles enclosed by a single membrane whose biochemical composition has the capacity to adapt depending on the plant tissue, developmental stage, as well as internal and external cellular stimuli. Apart from the peroxisomal metabolism of reactive oxygen species (ROS), discovered several decades ago, new molecules with signaling potential, including nitric oxide (NO) and hydrogen sulfide (H2S), have been detected in these organelles in recent years. These molecules generate a family of derived molecules, called reactive nitrogen species (RNS) and reactive sulfur species (RSS), whose peroxisomal metabolism is autoregulated through posttranslational modifications (PTMs) such as S-nitrosation, nitration and persulfidation. The peroxisomal metabolism of these reactive species, which can be weaponized against pathogens, is susceptible to modification in response to external stimuli. This review aims to provide up-to-date information on crosstalk between these reactive species families and peroxisomes, as well as on their cellular environment in light of the well-recognized signaling properties of H2O2, NO and H2S.
Collapse
Affiliation(s)
- Francisco J. Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | | | | |
Collapse
|
24
|
Katano K, Oi T, Suzuki N. Failure of Pollen Attachment to the Stigma Triggers Elongation of Stigmatic Papillae in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2020; 11:989. [PMID: 32714359 PMCID: PMC7340091 DOI: 10.3389/fpls.2020.00989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/17/2020] [Indexed: 05/20/2023]
Abstract
Pollination is one of key determinants of yield production in important crops, such as grains and beans in which seeds are utilized as agricultural products. Thus, to fulfil food demand for growing world population, it is necessary to elucidate the mechanisms that regulate pollination, leading to increase in yield production. In this study, we compared detailed morphological characteristics of reproductive organs in Arabidopsis thaliana grown under control conditions or subjected to heat stress. Shorter length of anthers, filaments, and petals were observed in plants subjected to heat stress compared to those under control conditions. In contrast, heat stress resulted in enlargement of stigma via elongation of stigmatic papillae. Classification of stigmas based on patterns of pollen attachment indicated that pollen attachment to stigma clearly decreased under heat stress. In addition, artificial pollination experiment demonstrated that stigma shrank when pollen attached, but, continued to enlarge in the absence of pollen. Such modulation of stigma size depending on the presence or absence of pollen was observed both under control and heat stressed conditions. Taken together, these results suggest that elongation of stigmatic papillae is associated with failure of pollen attachment to the stigma, rather than heat stress. Furthermore, histochemical staining experiments suggest that Ca2+ derived from pollen together with O2 - might be associated with morphological alteration of stigma depending on the patterns of pollen attachment.
Collapse
Affiliation(s)
- Kazuma Katano
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Chiyoda, Japan
| | - Takao Oi
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Nobuhiro Suzuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Chiyoda, Japan
| |
Collapse
|
25
|
Galvanotropic Chamber for Controlled Reorientation of Pollen Tube Growth and Simultaneous Confocal Imaging of Intracellular Dynamics. Methods Mol Biol 2020. [PMID: 32529437 DOI: 10.1007/978-1-0716-0672-8_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Successful fertilization and seed set require the pollen tube to grow through several tissues, to change its growth orientation by responding to directional cues, and to ultimately reach the embryo sac and deliver the paternal genetic material. The ability to respond to external directional cues is, therefore, a pivotal feature of pollen tube behavior. In order to study the regulatory mechanisms controlling and mediating pollen tube tropic growth, a robust and reproducible method for the induction of growth reorientation in vitro is required. Here we describe a galvanotropic chamber designed to expose growing pollen tubes to precisely calibrated directional cues triggering reorientation while simultaneously tracking subcellular processes using live cell imaging and confocal laser scanning microscopy.
Collapse
|
26
|
Adhikari PB, Liu X, Wu X, Zhu S, Kasahara RD. Fertilization in flowering plants: an odyssey of sperm cell delivery. PLANT MOLECULAR BIOLOGY 2020; 103:9-32. [PMID: 32124177 DOI: 10.1007/s11103-020-00987-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 02/26/2020] [Indexed: 05/22/2023]
Abstract
In light of the available discoveries in the field, this review manuscript discusses on plant reproduction mechanism and molecular players involved in the process. Sperm cells in angiosperms are immotile and are physically distant to the female gametophytes (FG). To secure the production of the next generation, plants have devised a clever approach by which the two sperm cells in each pollen are safely delivered to the female gametophyte where two fertilization events occur (by each sperm cell fertilizing an egg cell and central cell) to give rise to embryo and endosperm. Each of the successfully fertilized ovules later develops into a seed. Sets of macromolecules play roles in pollen tube (PT) guidance, from the stigma, through the transmitting tract and funiculus to the micropylar end of the ovule. Other sets of genetic players are involved in PT reception and in its rupture after it enters the ovule, and yet other sets of genes function in gametic fusion. Angiosperms have come long way from primitive reproductive structure development to today's sophisticated, diverse, and in most cases flamboyant organ. In this review, we will be discussing on the intricate yet complex molecular mechanism of double fertilization and how it might have been shaped by the evolutionary forces focusing particularly on the model plant Arabidopsis.
Collapse
Affiliation(s)
- Prakash B Adhikari
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Horticultural Plant Biology and Metabolomics Center (HBMC), Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Xiaoyan Liu
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Horticultural Plant Biology and Metabolomics Center (HBMC), Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Xiaoyan Wu
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Horticultural Plant Biology and Metabolomics Center (HBMC), Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Shaowei Zhu
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Horticultural Plant Biology and Metabolomics Center (HBMC), Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Ryushiro D Kasahara
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China.
- Horticultural Plant Biology and Metabolomics Center (HBMC), Fujian Agriculture and Forestry University, Fuzhou, Fujian, China.
| |
Collapse
|
27
|
Wong A, Donaldson L, Portes MT, Eppinger J, Feijó JA, Gehring C. Arabidopsis DIACYLGLYCEROL KINASE4 is involved in nitric oxide-dependent pollen tube guidance and fertilization. Development 2020; 147:dev.183715. [PMID: 32220864 DOI: 10.1242/dev.183715] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 02/26/2020] [Indexed: 12/16/2022]
Abstract
Nitric oxide (NO) is a key signaling molecule that regulates diverse biological processes in both animals and plants, including important roles in male gamete physiology. In plants, NO is generated in pollen tubes (PTs) and affects intracellular responses through the modulation of Ca2+ signaling, actin organization, vesicle trafficking and cell wall deposition, bearing consequences in pollen-stigma interactions and PT guidance. In contrast, the NO-responsive proteins that mediate these responses remain elusive. Here, we show that PTs of Arabidopsis thaliana mutants impaired in the pollen-specific DIACYLGLYCEROL KINASE4 (DGK4) grow slower and become partially insensitive to NO-dependent growth inhibition and re-orientation responses. Recombinant DGK4 protein yields NO-responsive spectral and catalytic changes in vitro that are compatible with a role in NO perception and signaling in PTs. In addition to the expected phosphatidic acid-producing kinase activity, DGK4 recombinant protein also revealed guanylyl cyclase activity, as inferred by sequence analysis. Our results are compatible with a role for the fast-diffusible NO gas in signaling and cell-cell communication via the modulation of DGK4 activity during the progamic phase of angiosperm reproduction.
Collapse
Affiliation(s)
- Aloysius Wong
- Department of Biology, College of Science and Technology, Wenzhou-Kean University, 88 Daxue Road, Ouhai, Wenzhou, Zhejiang Province 325060, China.,Division of Biological and Environmental Sciences and Engineering, 4700 King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Lara Donaldson
- Division of Biological and Environmental Sciences and Engineering, 4700 King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.,Department of Molecular and Cell Biology, University of Cape Town, Rondebosch 7701, South Africa
| | - Maria Teresa Portes
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742-5815, USA
| | - Jörg Eppinger
- Division of Physical Sciences and Engineering, Biological and Organometallic Catalysis Laboratory, KAUST Catalysis Center, 4700 King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - José A Feijó
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742-5815, USA
| | - Christoph Gehring
- Division of Biological and Environmental Sciences and Engineering, 4700 King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| |
Collapse
|
28
|
FERONIA controls pectin- and nitric oxide-mediated male–female interaction. Nature 2020; 579:561-566. [DOI: 10.1038/s41586-020-2106-2] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/17/2020] [Indexed: 12/31/2022]
|
29
|
Rahman H, Wang XY, Xu YP, He YH, Cai XZ. Characterization of tomato protein kinases embedding guanylate cyclase catalytic center motif. Sci Rep 2020; 10:4078. [PMID: 32139792 PMCID: PMC7057975 DOI: 10.1038/s41598-020-61000-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 02/19/2020] [Indexed: 11/09/2022] Open
Abstract
Guanylate cyclases (GCs) are enzymes that catalyze the reaction to produce cyclic GMP (cGMP), a key signaling molecule in eukaryotes. Nevertheless, systemic identification and functional analysis of GCs in crop plant species have not yet been conducted. In this study, we systematically identified GC genes in the economically important crop tomato (Solanum lycopersicum L.) and analyzed function of two putative tomato GC genes in disease resistance. Ninety-nine candidate GCs containing GC catalytic center (GC-CC) motif were identified in tomato genome. Intriguingly, all of them were putative protein kinases embedding a GC-CC motif within the protein kinase domain, which was thus tentatively named as GC-kinases here. Two homologs of Arabidopsis PEPRs, SlGC17 and SlGC18 exhibited in vitro GC activity. Co-silencing of SlGC17 and SlGC18 genes significantly reduced resistance to tobacco rattle virus, fungus Sclerotinia sclerotiorum, and bacterium Pseudomonas syringae pv. tomato (Pst) DC3000. Moreover, co-silencing of these two genes attenuated PAMP and DAMP-triggered immunity as shown by obvious decrease of flg22, chitin and AtPep1-elicited Ca2+ and H2O2 burst in SlGC-silenced plants. Additionally, silencing of these genes altered the expression of a set of Ca2+ signaling genes. Furthermore, co-silencing of these GC-kinase genes exhibited stronger effects on all above regulations in comparison with individual silencing. Collectively, our results suggest that GC-kinases might widely exist in tomato and the two SlPEPR-GC genes redundantly play a positive role in resistance to diverse pathogens and PAMP/DAMP-triggered immunity in tomato. Our results provide insights into composition and functions of GC-kinases in tomato.
Collapse
Affiliation(s)
- Hafizur Rahman
- Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xin-Yao Wang
- Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - You-Ping Xu
- Center of Analysis and Measurement, Zhejiang University, Hangzhou, 310058, China
| | - Yu-Han He
- Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xin-Zhong Cai
- Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
| |
Collapse
|
30
|
Rather BA, Masood A, Sehar Z, Majid A, Anjum NA, Khan NA. Mechanisms and Role of Nitric Oxide in Phytotoxicity-Mitigation of Copper. FRONTIERS IN PLANT SCIENCE 2020; 11:675. [PMID: 32547583 PMCID: PMC7274197 DOI: 10.3389/fpls.2020.00675] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 04/29/2020] [Indexed: 05/07/2023]
Abstract
Phytotoxicity of metals significantly contributes to the major loss in agricultural productivity. Among all the metals, copper (Cu) is one of essential metals, where it exhibits toxicity only at its supra-optimal level. Elevated Cu levels affect plants developmental processes from initiation of seed germination to the senescence, photosynthetic functions, growth and productivity. The use of plant growth regulators/phytohormones and other signaling molecules is one of major approaches for reversing Cu-toxicity in plants. Nitric oxide (NO) is a versatile and bioactive gaseous signaling molecule, involved in major physiological and molecular processes in plants. NO modulates responses of plants grown under optimal conditions or to multiple stress factors including elevated Cu levels. The available literature in this context is centered mainly on the role of NO in combating Cu stress with partial discussion on underlying mechanisms. Considering the recent reports, this paper: (a) overviews Cu uptake and transport; (b) highlights the major aspects of Cu-toxicity on germination, photosynthesis, growth, phenotypic changes and nutrient-use-efficiency; (c) updates on NO as a major signaling molecule; and (d) critically appraises the Cu-significance and mechanisms underlying NO-mediated alleviation of Cu-phytotoxicity. The outcome of the discussion may provide important clues for future research on NO-mediated mitigation of Cu-phytotoxicity.
Collapse
|
31
|
Benkő P, Jee S, Kaszler N, Fehér A, Gémes K. Polyamines treatment during pollen germination and pollen tube elongation in tobacco modulate reactive oxygen species and nitric oxide homeostasis. JOURNAL OF PLANT PHYSIOLOGY 2020; 244:153085. [PMID: 31812029 DOI: 10.1016/j.jplph.2019.153085] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 09/25/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
Several signaling pathways have been shown to be involved in the regulation of pollen germination and pollen tube elongation. Among others, exogenously applied polyamines were found to strongly affect pollen maturation, pollen tube emergence and elongation. In this study, our aim was to investigate the regulatory relation among exogenous polyamines, and endogenous reactive oxygen species and nitric oxide under pollen germination and the apical growth of pollen tube in tobacco plants. We have found that the various polyamines differentially affected the metabolism of nitric oxide and reactive oxygen species during the processes of pollen germination in the grain and the lengthening pollen tube. It is hypothesized that their differential effects might be related to their distinct influence on the endogenous nitric oxide and reactive oxygen species levels.
Collapse
Affiliation(s)
- Péter Benkő
- Institute of Plant Biology, Biological Research Centre, Hungarian Academy of Sciences, 62. Temesvári krt, H-6726, Szeged, Hungary; Doctoral School of Biology, University of Szeged, 52. Közép fasor, H-6726, Szeged, Hungary; Department of Plant Biology, University of Szeged, 52. Közép fasor, H-6726, Szeged, Hungary
| | - Shyam Jee
- Institute of Plant Biology, Biological Research Centre, Hungarian Academy of Sciences, 62. Temesvári krt, H-6726, Szeged, Hungary; Doctoral School of Biology, University of Szeged, 52. Közép fasor, H-6726, Szeged, Hungary; Department of Plant Biology, University of Szeged, 52. Közép fasor, H-6726, Szeged, Hungary
| | - Nikolett Kaszler
- Institute of Plant Biology, Biological Research Centre, Hungarian Academy of Sciences, 62. Temesvári krt, H-6726, Szeged, Hungary; Doctoral School of Biology, University of Szeged, 52. Közép fasor, H-6726, Szeged, Hungary; Department of Plant Biology, University of Szeged, 52. Közép fasor, H-6726, Szeged, Hungary
| | - Attila Fehér
- Institute of Plant Biology, Biological Research Centre, Hungarian Academy of Sciences, 62. Temesvári krt, H-6726, Szeged, Hungary; Department of Plant Biology, University of Szeged, 52. Közép fasor, H-6726, Szeged, Hungary
| | - Katalin Gémes
- Institute of Plant Biology, Biological Research Centre, Hungarian Academy of Sciences, 62. Temesvári krt, H-6726, Szeged, Hungary; Department of Plant Biology, University of Szeged, 52. Közép fasor, H-6726, Szeged, Hungary.
| |
Collapse
|
32
|
A forty year journey: The generation and roles of NO in plants. Nitric Oxide 2019; 93:53-70. [DOI: 10.1016/j.niox.2019.09.006] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/28/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
|
33
|
Sandalio LM, Gotor C, Romero LC, Romero-Puertas MC. Multilevel Regulation of Peroxisomal Proteome by Post-Translational Modifications. Int J Mol Sci 2019; 20:E4881. [PMID: 31581473 PMCID: PMC6801620 DOI: 10.3390/ijms20194881] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 01/10/2023] Open
Abstract
Peroxisomes, which are ubiquitous organelles in all eukaryotes, are highly dynamic organelles that are essential for development and stress responses. Plant peroxisomes are involved in major metabolic pathways, such as fatty acid β-oxidation, photorespiration, ureide and polyamine metabolism, in the biosynthesis of jasmonic, indolacetic, and salicylic acid hormones, as well as in signaling molecules such as reactive oxygen and nitrogen species (ROS/RNS). Peroxisomes are involved in the perception of environmental changes, which is a complex process involving the regulation of gene expression and protein functionality by protein post-translational modifications (PTMs). Although there has been a growing interest in individual PTMs in peroxisomes over the last ten years, their role and cross-talk in the whole peroxisomal proteome remain unclear. This review provides up-to-date information on the function and crosstalk of the main peroxisomal PTMs. Analysis of whole peroxisomal proteomes shows that a very large number of peroxisomal proteins are targeted by multiple PTMs, which affect redox balance, photorespiration, the glyoxylate cycle, and lipid metabolism. This multilevel PTM regulation could boost the plasticity of peroxisomes and their capacity to regulate metabolism in response to environmental changes.
Collapse
Affiliation(s)
- Luisa M Sandalio
- Department of Biochemistry and Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, 18008 Granada, Spain.
| | - Cecilia Gotor
- Institute of Plant Biochemistry and Photosynthesis, CSIC and the University of Seville, 41092 Seville, Spain.
| | - Luis C Romero
- Institute of Plant Biochemistry and Photosynthesis, CSIC and the University of Seville, 41092 Seville, Spain.
| | - Maria C Romero-Puertas
- Department of Biochemistry and Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, 18008 Granada, Spain.
| |
Collapse
|
34
|
Hussain A, Yun BW, Kim JH, Gupta KJ, Hyung NI, Loake GJ. Novel and conserved functions of S-nitrosoglutathione reductase in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4877-4886. [PMID: 31089684 PMCID: PMC6760305 DOI: 10.1093/jxb/erz234] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 04/29/2019] [Indexed: 05/03/2023]
Abstract
Nitric oxide (NO) is emerging as a key signalling molecule in plants. The chief mechanism for the transfer of NO bioactivity is thought to be S-nitrosylation, the addition of an NO moiety to a protein cysteine thiol to form an S-nitrosothiol (SNO). The enzyme S-nitrosoglutathione reductase (GSNOR) indirectly controls the total levels of cellular S-nitrosylation, by depleting S-nitrosoglutathione (GSNO), the major cellular NO donor. Here we show that depletion of GSNOR function impacts tomato (Solanum lycopersicum. L) fruit development. Thus, reduction of GSNOR expression through RNAi modulated both fruit formation and yield, establishing a novel function for GSNOR. Further, depletion of S. lycopersicum GSNOR (SlGSNOR) additionally impacted a number of other developmental processes, including seed development, which also has not been previously linked with GSNOR activity. In contrast to Arabidopsis, depletion of GSNOR function did not influence root development. Further, reduction of GSNOR transcript abundance compromised plant immunity. Surprisingly, this was in contrast to previous data in Arabidopsis that reported that reducing Arabidopsis thaliana GSNOR (AtGSNOR) expression by antisense technology increased disease resistance. We also show that increased SlGSNOR expression enhanced pathogen protection, uncovering a potential strategy to enhance disease resistance in crop plants. Collectively, our findings reveal, at the genetic level, that some but not all GSNOR activities are conserved outside the Arabidopsis reference system. Thus, manipulating the extent of GSNOR expression may control important agricultural traits in tomato and possibly other crop plants.
Collapse
Affiliation(s)
- Adil Hussain
- Department of Agriculture, Abdul Wali Khan University Mardan, Khyber-Pakhtunkhwa, Pakistan
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Byung-Wook Yun
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Republic of Korea
| | - Ji Hyun Kim
- Department of Plant and Food Sciences, Sangmyung University, Cheonan, Republic of Korea
| | | | - Nam-In Hyung
- Department of Plant and Food Sciences, Sangmyung University, Cheonan, Republic of Korea
| | - Gary J Loake
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
- Correspondence:
| |
Collapse
|
35
|
Martínez-Medina A, Pescador L, Terrón-Camero LC, Pozo MJ, Romero-Puertas MC. Nitric oxide in plant-fungal interactions. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4489-4503. [PMID: 31197351 DOI: 10.1093/jxb/erz289] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/05/2019] [Indexed: 05/17/2023]
Abstract
Whilst many interactions with fungi are detrimental for plants, others are beneficial and result in improved growth and stress tolerance. Thus, plants have evolved sophisticated mechanisms to restrict pathogenic interactions while promoting mutualistic relationships. Numerous studies have demonstrated the importance of nitric oxide (NO) in the regulation of plant defence against fungal pathogens. NO triggers a reprograming of defence-related gene expression, the production of secondary metabolites with antimicrobial properties, and the hypersensitive response. More recent studies have shown a regulatory role of NO during the establishment of plant-fungal mutualistic associations from the early stages of the interaction. Indeed, NO has been recently shown to be produced by the plant after the recognition of root fungal symbionts, and to be required for the optimal control of mycorrhizal symbiosis. Although studies dealing with the function of NO in plant-fungal mutualistic associations are still scarce, experimental data indicate that different regulation patterns and functions for NO exist between plant interactions with pathogenic and mutualistic fungi. Here, we review recent progress in determining the functions of NO in plant-fungal interactions, and try to identify common and differential patterns related to pathogenic and mutualistic associations, and their impacts on plant health.
Collapse
Affiliation(s)
- Ainhoa Martínez-Medina
- Plant-Microorganism Interaction Unit, Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Salamanca, Spain
| | - Leyre Pescador
- Department of Biochemistry, Cell and Molecular Plant Biology, Estación Experimental del Zaidín (CSIC), Granada, Spain
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (CSIC), Granada, Spain
| | - Laura C Terrón-Camero
- Department of Biochemistry, Cell and Molecular Plant Biology, Estación Experimental del Zaidín (CSIC), Granada, Spain
| | - María J Pozo
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (CSIC), Granada, Spain
| | - María C Romero-Puertas
- Plant-Microorganism Interaction Unit, Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Salamanca, Spain
- Department of Biochemistry, Cell and Molecular Plant Biology, Estación Experimental del Zaidín (CSIC), Granada, Spain
| |
Collapse
|
36
|
Bot P, Mun BG, Imran QM, Hussain A, Lee SU, Loake G, Yun BW. Differential expression of AtWAKL10 in response to nitric oxide suggests a putative role in biotic and abiotic stress responses. PeerJ 2019; 7:e7383. [PMID: 31440429 PMCID: PMC6699482 DOI: 10.7717/peerj.7383] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 06/30/2019] [Indexed: 12/13/2022] Open
Abstract
Plant defense against pathogens and abiotic stresses is regulated differentially by communicating signal transduction pathways in which nitric oxide (NO) plays a key role. Here, we show the biological role of Arabidopsis thaliana wall-associated kinase (AtWAK) Like10 (AtWAKL10) that exhibits greater than a 100-fold change in transcript accumulation in response to the NO donor S-nitroso-L-cysteine (CysNO), identified from high throughput RNA-seq based transcriptome analysis. Loss of AtWAKL10 function showed a similar phenotype to wild type (WT) with, however, less branching. The growth of atwakl10 on media supplemented with oxidative or nitrosative stress resulted in differential results with improved growth following treatment with CysNO but reduced growth in response to S-nitrosoglutatione (GSNO) and methyl-viologen. Further, atwakl10 plants exhibited increased susceptibility to virulent Pseudomonas syringae pv tomato (Pst) DC3000 with a significant increase in pathogen growth and decrease in PR1 transcript accumulation compared to WT overtime. Similar results were found in response to Pst DC3000 avrB, resulting in increased cell death as shown by increased electrolyte leakage in atwakl10. Furthermore, atwakl10 also showed increased reactive oxygen species accumulation following Pst DC3000 avrB inoculation. Promoter analysis of AtWAKL10 showed transcription factor (TF) binding sites for biotic and abiotic stress-related TFs. Further investigation into the role of AtWAKL10 in abiotic stresses showed that following two weeks water-withholding drought condition most of the atwakl10 plants got wilted; however, the majority (60%) of these plants recovered following re-watering. In contrast, in response to salinity stress, atwakl10 showed reduced germination under 150 mM salt stress compared to WT, suggesting that NO-induced AtWAKL10 differentially regulates different abiotic stresses. Taken together, this study further elucidates the importance of NO-induced changes in gene expression and their role in plant biotic and abiotic stress tolerance.
Collapse
Affiliation(s)
- Phearom Bot
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Bong-Gyu Mun
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Qari Muhammad Imran
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Adil Hussain
- Department of Agriculture, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Sang-Uk Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Gary Loake
- Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, UK
| | - Byung-Wook Yun
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| |
Collapse
|
37
|
Xu X, Backes A, Legay S, Berni R, Faleri C, Gatti E, Hausman J, Cai G, Guerriero G. Cell wall composition and transcriptomics in stem tissues of stinging nettle ( Urtica dioica L.): Spotlight on a neglected fibre crop. PLANT DIRECT 2019; 3:e00151. [PMID: 31417976 PMCID: PMC6689792 DOI: 10.1002/pld3.151] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/18/2019] [Accepted: 06/21/2019] [Indexed: 06/01/2023]
Abstract
Stinging nettle (Urtica dioica L.) produces silky cellulosic fibres, as well as bioactive molecules. To improve the knowledge on nettle and enhance its opportunities of exploitation, a draft transcriptome of the "clone 13" (a fibre clone) is here presented. The transcriptome of whole internodes sampled at the top and middle of the stem is then compared with the core and cortical tissues sampled at the bottom. Young internodes show an enrichment in genes involved in the biosynthesis of phytohormones (auxins and jasmonic acid) and secondary metabolites (flavonoids). The core of internodes collected at the bottom of the stem is enriched in genes partaking in different aspects of secondary cell wall formation (cellulose, hemicellulose, lignin biosynthesis), while the cortical tissues reveal the presence of a C starvation signal probably due to the UDP-glucose demand necessary for the thickening phase of bast fibres. Cell wall analysis indicates a difference in rhamnogalacturonan structure/composition of mature bast fibres, as evidenced by the higher levels of galactose measured, as well as the occurrence of more water-soluble pectins in elongating internodes. The targeted quantification of phenolics shows that the middle internode and the cortical tissues at the bottom have higher contents than top internodes. Ultrastructural analyses reveal the presence of a gelatinous layer in bast fibres with a lamellar structure. The data presented will be an important resource and reference for future molecular studies on a neglected fibre crop.
Collapse
Affiliation(s)
- Xuan Xu
- Environmental Research and Innovation (ERIN) DepartmentLuxembourg Institute of Science and Technology (LIST)Esch/AlzetteLuxembourg
| | - Aurélie Backes
- Environmental Research and Innovation (ERIN) DepartmentLuxembourg Institute of Science and Technology (LIST)Esch/AlzetteLuxembourg
- Present address:
Unité de Recherche Résistance Induite et BioProtection des PlantesUFR Sciences Exactes et NaturellesSFR Condorcet FR CNRS 3417Université de Reims‐Champagne‐ArdenneReims Cedex 2France
| | - Sylvain Legay
- Environmental Research and Innovation (ERIN) DepartmentLuxembourg Institute of Science and Technology (LIST)Esch/AlzetteLuxembourg
| | - Roberto Berni
- Department of Life SciencesUniversity of SienaSienaItaly
- Trees and Timber Institute‐National Research Council of Italy (CNR‐IVALSA)FollonicaItaly
| | - Claudia Faleri
- Department of Life SciencesUniversity of SienaSienaItaly
| | - Edoardo Gatti
- Institute of Biometeorology (IBIMET)National Research CouncilBolognaItaly
| | - Jean‐Francois Hausman
- Environmental Research and Innovation (ERIN) DepartmentLuxembourg Institute of Science and Technology (LIST)Esch/AlzetteLuxembourg
| | - Giampiero Cai
- Department of Life SciencesUniversity of SienaSienaItaly
| | - Gea Guerriero
- Environmental Research and Innovation (ERIN) DepartmentLuxembourg Institute of Science and Technology (LIST)Esch/AlzetteLuxembourg
| |
Collapse
|
38
|
Corpas FJ, Del Río LA, Palma JM. Plant peroxisomes at the crossroad of NO and H 2 O 2 metabolism. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2019; 61:803-816. [PMID: 30609289 DOI: 10.1111/jipb.12772] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/26/2018] [Indexed: 06/09/2023]
Abstract
Plant peroxisomes are subcellular compartments involved in many biochemical pathways during the life cycle of a plant but also in the mechanism of response against adverse environmental conditions. These organelles have an active nitro-oxidative metabolism under physiological conditions but this could be exacerbated under stress situations. Furthermore, peroxisomes have the capacity to proliferate and also undergo biochemical adaptations depending on the surrounding cellular status. An important characteristic of peroxisomes is that they have a dynamic metabolism of reactive nitrogen and oxygen species (RNS and ROS) which generates two key molecules, nitric oxide (NO) and hydrogen peroxide (H2 O2 ). These molecules can exert signaling functions by means of post-translational modifications that affect the functionality of target molecules like proteins, peptides or fatty acids. This review provides an overview of the endogenous metabolism of ROS and RNS in peroxisomes with special emphasis on polyamine and uric acid metabolism as well as the possibility that these organelles could be a source of signal molecules involved in the functional interconnection with other subcellular compartments.
Collapse
Affiliation(s)
- Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| | - Luis A Del Río
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| |
Collapse
|
39
|
Pan R, Liu J, Hu J. Peroxisomes in plant reproduction and seed-related development. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2019; 61:784-802. [PMID: 30578613 DOI: 10.1111/jipb.12765] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/18/2018] [Indexed: 05/21/2023]
Abstract
Peroxisomes are small multi-functional organelles essential for plant development and growth. Plant peroxisomes play various physiological roles, including phytohormone biosynthesis, lipid catabolism, reactive oxygen species metabolism and many others. Mutant analysis demonstrated key roles for peroxisomes in plant reproduction, seed development and germination and post-germinative seedling establishment; however, the underlying mechanisms remain to be fully elucidated. This review summarizes findings that reveal the importance and complexity of the role of peroxisomes in the pertinent processes. The β-oxidation pathway plays a central role, whereas other peroxisomal pathways are also involved. Understanding the biochemical and molecular mechanisms of these peroxisomal functions will be instrumental to the improvement of crop plants.
Collapse
Affiliation(s)
- Ronghui Pan
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Jun Liu
- Seed Science Center, Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Jianping Hu
- MSU-Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, MI, USA
- Plant Biology Department, Michigan State University, East Lansing, MI, USA
| |
Collapse
|
40
|
Tewari RK, Horemans N, Nauts R, Wannijn J, Van Hees M, Vandenhove H. The nitric oxide suppressed Arabidopsis mutants- Atnoa1 and Atnia1nia2noa1-2 produce nitric oxide in MS growth medium and on uranium exposure. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 140:9-17. [PMID: 31078053 DOI: 10.1016/j.plaphy.2019.04.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/21/2019] [Accepted: 04/30/2019] [Indexed: 05/26/2023]
Abstract
The mutants Atnoa1 and Atnia1nia2noa1-2 having a defective chloroplast developmental process, showed enhanced chlorophyll levels when they were grown on Murashige and Skoog (MS) medium and on exposure with uranium (U) on Hoagland medium. Thus we hypothesized that these mutants probably produced NO in MS medium and on exposure with U. Wild-type Col-0, Atnoa1, Atnia1nia2noa1-2 plants were cultured on modified Hoagland and 1/10 MS media and NO generation in the roots of these mutants was monitored using NO selective fluorescent dyes, DAF-2DA and Fl2E. Both Atnoa1 and Atnia1nia2noa1-2 triple mutants produced NO as observed by increases in DAF-2T and Fl2E fluorescence when these mutants were grown on MS medium but not on Hoagland medium. In presence of NO scavenger, methylene blue (MB, 200 μM), DAF-2T and Fl2E fluorescence was completely abolished. On the other hand treatment of the plants with 25 μM U triggered NO generation. U-treated Atnoa1 and Atnia1nia2noa1-2 plants upregulated genes (POR B, POR D, CHL D) involved in the chlorophyll biosynthesis. From these results it was concluded that Atnoa1 and Atnia1nia2noa1-2 are conditional NO producers and it appears that NO generation in plants substantially depends on growth medium and NIA1, NIA2 or NOA1 does not appear to be really involved in NO generation in MS medium or after U exposure.
Collapse
Affiliation(s)
- Rajesh Kumar Tewari
- Department of Botany, University of Lucknow, Lucknow, 226007, India; Biosphere Impact Studies, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, Mol, 2400, Belgium.
| | - Nele Horemans
- Biosphere Impact Studies, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, Mol, 2400, Belgium; Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590, Diepenbeek, Belgium.
| | - Robin Nauts
- Department of Botany, University of Lucknow, Lucknow, 226007, India.
| | - Jean Wannijn
- Biosphere Impact Studies, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, Mol, 2400, Belgium.
| | - May Van Hees
- Biosphere Impact Studies, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, Mol, 2400, Belgium.
| | - Hildegarde Vandenhove
- Biosphere Impact Studies, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, Mol, 2400, Belgium.
| |
Collapse
|
41
|
Lopes AL, Moreira D, Ferreira MJ, Pereira AM, Coimbra S. Insights into secrets along the pollen tube pathway in need to be discovered. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:2979-2992. [PMID: 30820535 DOI: 10.1093/jxb/erz087] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
The process of plant fertilization provides an outstanding example of refined control of gene expression. During this elegant process, subtle communication occurs between neighboring cells, based on chemical signals, that induces cellular mechanisms of patterning and growth. Having faced an immediate issue of self-incompatibility responses, the pathway to fertilization starts once the stigmatic cells recognize a compatible pollen grain, and it continues with numerous players interacting to affect pollen tube growth and the puzzling process of navigation along the transmitting tract. The pollen tube goes through a guidance process that begins with a preovular stage (i.e. prior to the influence of the target ovule), with interactions with factors from the transmitting tissue. In the subsequent ovular-guidance stage a specific relationship develops between the pollen tube and its target ovule. This stage is divided into the funicular and micropylar guidance steps, with numerous receptors working in signalling cascades. Finally, just after the pollen tube has passed beyond the synergids, fusion of the gametes occurs and the developing seed-the ultimate aim of the process-will start to mature. In this paper, we review the existing knowledge of the crucial biological processes involved in pollen-pistil interactions that give rise to the new seed.
Collapse
Affiliation(s)
- Ana Lúcia Lopes
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
- Biosystems and Integrative Sciences Institute - BioISI, Porto, Portugal
- Sustainable Agrifood Production Research Centre - GreenUPorto, Vairão, Portugal
| | - Diana Moreira
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Maria João Ferreira
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Ana Marta Pereira
- Dipartimento di Bioscienze, Università Degli Studi di Milano, Milano, Italy
| | - Sílvia Coimbra
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
- Sustainable Agrifood Production Research Centre - GreenUPorto, Vairão, Portugal
| |
Collapse
|
42
|
Signorelli S, Tarkowski ŁP, Van den Ende W, Bassham DC. Linking Autophagy to Abiotic and Biotic Stress Responses. TRENDS IN PLANT SCIENCE 2019; 24:413-430. [PMID: 30824355 PMCID: PMC6475611 DOI: 10.1016/j.tplants.2019.02.001] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 02/01/2019] [Accepted: 02/04/2019] [Indexed: 05/05/2023]
Abstract
Autophagy is a process in which cellular components are delivered to lytic vacuoles to be recycled and has been demonstrated to promote abiotic/biotic stress tolerance. Here, we review how the responses triggered by stress conditions can affect autophagy and its signaling pathways. Besides the role of SNF-related kinase 1 (SnRK1) and TOR kinases in the regulation of autophagy, abscisic acid (ABA) and its signaling kinase SnRK2 have emerged as key players in the induction of autophagy under stress conditions. Furthermore, an interplay between reactive oxygen species (ROS) and autophagy is observed, ROS being able to induce autophagy and autophagy able to reduce ROS production. We also highlight the importance of osmotic adjustment for the successful performance of autophagy and discuss the potential role of GABA in plant survival and ethylene (ET)-induced autophagy.
Collapse
Affiliation(s)
- Santiago Signorelli
- Laboratory of Molecular Plant Biology, KU Leuven, Leuven, Belgium; Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Montevideo 12900, Uruguay.
| | | | - Wim Van den Ende
- Laboratory of Molecular Plant Biology, KU Leuven, Leuven, Belgium
| | - Diane C Bassham
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011, USA
| |
Collapse
|
43
|
Laggoun F, Dardelle F, Dehors J, Falconet D, Driouich A, Rochais C, Dallemagne P, Lehner A, Mollet JC. A chemical screen identifies two novel small compounds that alter Arabidopsis thaliana pollen tube growth. BMC PLANT BIOLOGY 2019; 19:152. [PMID: 31010418 PMCID: PMC6475968 DOI: 10.1186/s12870-019-1743-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/27/2019] [Indexed: 05/23/2023]
Abstract
BACKGROUND During sexual reproduction, pollen grains land on the stigma, rehydrate and produce pollen tubes that grow through the female transmitting-tract tissue allowing the delivery of the two sperm cells to the ovule and the production of healthy seeds. Because pollen tubes are single cells that expand by tip-polarized growth, they represent a good model to study the growth dynamics, cell wall deposition and intracellular machineries. Aiming to understand this complex machinery, we used a low throughput chemical screen approach in order to isolate new tip-growth disruptors. The effect of a chemical inhibitor of monogalactosyldiacylglycerol synthases, galvestine-1, was also investigated. The present work further characterizes their effects on the tip-growth and intracellular dynamics of pollen tubes. RESULTS Two small compounds among 258 were isolated based on their abilities to perturb pollen tube growth. They were found to disrupt in vitro pollen tube growth of tobacco, tomato and Arabidopsis thaliana. We show that these 3 compounds induced abnormal phenotypes (bulging and/or enlarged pollen tubes) and reduced pollen tube length in a dose dependent manner. Pollen germination was significantly reduced after treatment with the two compounds isolated from the screen. They also affected cell wall material deposition in pollen tubes. The compounds decreased anion superoxide accumulation, disorganized actin filaments and RIC4 dynamics suggesting that they may affect vesicular trafficking at the pollen tube tip. CONCLUSION These molecules may alter directly or indirectly ROP1 activity, a key regulator of pollen tube growth and vesicular trafficking and therefore represent good tools to further study cellular dynamics during polarized-cell growth.
Collapse
Affiliation(s)
- Ferdousse Laggoun
- Normandie Université, UNIROUEN, Laboratoire Glycobiologie et Matrice Extracellulaire Végétale EA4358, Fédération de Recherche “NORVEGE”- FED 4277, 76000 Rouen, France
| | - Flavien Dardelle
- Normandie Université, UNIROUEN, Laboratoire Glycobiologie et Matrice Extracellulaire Végétale EA4358, Fédération de Recherche “NORVEGE”- FED 4277, 76000 Rouen, France
- Present Address: LPS-BioSciences, Bâtiment 409, Université Paris-Sud, 91400 Orsay, France
| | - Jérémy Dehors
- Normandie Université, UNIROUEN, Laboratoire Glycobiologie et Matrice Extracellulaire Végétale EA4358, Fédération de Recherche “NORVEGE”- FED 4277, 76000 Rouen, France
| | - Denis Falconet
- Laboratoire de Physiologie Cellulaire et Végétale, CNRS, CEA, INRA, Université Grenoble Alpes, Institut de Biosciences et Biotechnologies de Grenoble, CEA Grenoble, 38000 Grenoble, cedex 9 France
| | - Azeddine Driouich
- Normandie Université, UNIROUEN, Laboratoire Glycobiologie et Matrice Extracellulaire Végétale EA4358, Fédération de Recherche “NORVEGE”- FED 4277, 76000 Rouen, France
| | - Christophe Rochais
- Normandie Université, UNICAEN, Centre d’Etudes et de Recherche sur le Médicament de Normandie, CNRS 3038 INC3M, SFR ICORE, 14032, Caen, France
| | - Patrick Dallemagne
- Normandie Université, UNICAEN, Centre d’Etudes et de Recherche sur le Médicament de Normandie, CNRS 3038 INC3M, SFR ICORE, 14032, Caen, France
| | - Arnaud Lehner
- Normandie Université, UNIROUEN, Laboratoire Glycobiologie et Matrice Extracellulaire Végétale EA4358, Fédération de Recherche “NORVEGE”- FED 4277, 76000 Rouen, France
| | - Jean-Claude Mollet
- Normandie Université, UNIROUEN, Laboratoire Glycobiologie et Matrice Extracellulaire Végétale EA4358, Fédération de Recherche “NORVEGE”- FED 4277, 76000 Rouen, France
| |
Collapse
|
44
|
Corpas FJ, Río LAD, Palma JM. Impact of Nitric Oxide (NO) on the ROS Metabolism of Peroxisomes. PLANTS (BASEL, SWITZERLAND) 2019; 8:E37. [PMID: 30744153 PMCID: PMC6409570 DOI: 10.3390/plants8020037] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/02/2019] [Accepted: 02/07/2019] [Indexed: 12/24/2022]
Abstract
Nitric oxide (NO) is a gaseous free radical endogenously generated in plant cells. Peroxisomes are cell organelles characterized by an active metabolism of reactive oxygen species (ROS) and are also one of the main cellular sites of NO production in higher plants. In this mini-review, an updated and comprehensive overview is presented of the evidence available demonstrating that plant peroxisomes have the capacity to generate NO, and how this molecule and its derived products, peroxynitrite (ONOO⁻) and S-nitrosoglutathione (GSNO), can modulate the ROS metabolism of peroxisomes, mainly throughout protein posttranslational modifications (PTMs), including S-nitrosation and tyrosine nitration. Several peroxisomal antioxidant enzymes, such as catalase (CAT), copper-zinc superoxide dismutase (CuZnSOD), and monodehydroascorbate reductase (MDAR), have been demonstrated to be targets of NO-mediated PTMs. Accordingly, plant peroxisomes can be considered as a good example of the interconnection existing between ROS and reactive nitrogen species (RNS), where NO exerts a regulatory function of ROS metabolism acting upstream of H₂O₂.
Collapse
Affiliation(s)
- Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry and Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008 Granada, Spain.
| | - Luis A Del Río
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry and Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008 Granada, Spain.
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry and Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008 Granada, Spain.
| |
Collapse
|
45
|
Zhou LZ, Dresselhaus T. Friend or foe: Signaling mechanisms during double fertilization in flowering seed plants. Curr Top Dev Biol 2018; 131:453-496. [PMID: 30612627 DOI: 10.1016/bs.ctdb.2018.11.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Since the first description of double fertilization 120 years ago, the processes of pollen tube growth and guidance, sperm cell release inside the receptive synergid cell, as well as fusion of two sperm cells to the female gametes (egg and central cell) have been well documented in many flowering plants. Especially microscopic techniques, including live cell imaging, were used to visualize these processes. Molecular as well as genetic methods were applied to identify key players involved. However, compared to the first 11 decades since its discovery, the past decade has seen a tremendous advancement in our understanding of the molecular mechanisms regulating angiosperm fertilization. Whole signaling networks were elucidated including secreted ligands, corresponding receptors, intracellular interaction partners, and further downstream signaling events involved in the cross-talk between pollen tubes and their cargo with female reproductive cells. Biochemical and structural biological approaches are now increasingly contributing to our understanding of the different signaling processes required to distinguish between compatible and incompatible interaction partners. Here, we review the current knowledge about signaling mechanisms during above processes with a focus on the model plants Arabidopsis thaliana and Zea mays (maize). The analogy that many of the identified "reproductive signaling mechanisms" also act partly or fully in defense responses and/or cell death is also discussed.
Collapse
Affiliation(s)
- Liang-Zi Zhou
- Cell Biology and Plant Biochemistry, University of Regensburg, Regensburg, Germany
| | - Thomas Dresselhaus
- Cell Biology and Plant Biochemistry, University of Regensburg, Regensburg, Germany.
| |
Collapse
|
46
|
Katano K, Honda K, Suzuki N. Integration between ROS Regulatory Systems and Other Signals in the Regulation of Various Types of Heat Responses in Plants. Int J Mol Sci 2018; 19:ijms19113370. [PMID: 30373292 PMCID: PMC6274784 DOI: 10.3390/ijms19113370] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 10/23/2018] [Accepted: 10/24/2018] [Indexed: 12/31/2022] Open
Abstract
Because of their sessile lifestyle, plants cannot escape from heat stress and are forced to alter their cellular state to prevent damage. Plants, therefore, evolved complex mechanisms to adapt to irregular increases in temperature in the natural environment. In addition to the ability to adapt to an abrupt increase in temperature, plants possess strategies to reprogram their cellular state during pre-exposure to sublethal heat stress so that they are able to survive under subsequent severe heat stress. Such an acclimatory response to heat, i.e., acquired thermotolerance, might depend on the maintenance of heat memory and propagation of long-distance signaling. In addition, plants are able to tailor their specific cellular state to adapt to heat stress combined with other abiotic stresses. Many studies revealed significant roles of reactive oxygen species (ROS) regulatory systems in the regulation of these various heat responses in plants. However, the mode of coordination between ROS regulatory systems and other pathways is still largely unknown. In this review, we address how ROS regulatory systems are integrated with other signaling networks to control various types of heat responses in plants. In addition, differences and similarities in heat response signals between different growth stages are also addressed.
Collapse
Affiliation(s)
- Kazuma Katano
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda, 102-8554 Tokyo, Japan.
| | | | | |
Collapse
|
47
|
Burri JT, Vogler H, Läubli NF, Hu C, Grossniklaus U, Nelson BJ. Feeling the force: how pollen tubes deal with obstacles. THE NEW PHYTOLOGIST 2018; 220:187-195. [PMID: 29905972 DOI: 10.1111/nph.15260] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 05/08/2018] [Indexed: 05/06/2023]
Abstract
Physical forces are involved in the regulation of plant development and morphogenesis by translating mechanical stress into the modification of physiological processes, which, in turn, can affect cellular growth. Pollen tubes respond rapidly to external stimuli and provide an ideal system to study the effect of mechanical cues at the single-cell level. Here, pollen tubes were exposed to mechanical stress while monitoring the reconfiguration of their growth and recording the generated forces in real-time. We combined a lab-on-a-chip device with a microelectromechanical systems (MEMS)-based capacitive force sensor to mimic and quantify the forces that are involved in pollen tube navigation upon confronting mechanical obstacles. Several stages of obstacle avoidance were identified, including force perception, growth adjustment and penetration. We have experimentally determined the perceptive force threshold, which is the force threshold at which the pollen tube reacts to an obstacle, for Lilium longiflorum and Arabidopsis thaliana. In addition, the method we developed provides a way to calculate turgor pressure based on force and optical data. Pollen tubes sense physical barriers and actively adjust their growth behavior to overcome them. Furthermore, our system offers an ideal platform to investigate intracellular activity during force perception and growth adaption in tip growing cells.
Collapse
Affiliation(s)
- Jan T Burri
- Multi-Scale Robotics Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, Zürich, 8092, Switzerland
| | - Hannes Vogler
- Department of Plant and Microbial Biology and Zürich-Basel Plant Science Center, University of Zürich, Zürich, 8008, Switzerland
| | - Nino F Läubli
- Multi-Scale Robotics Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, Zürich, 8092, Switzerland
| | - Chengzhi Hu
- Multi-Scale Robotics Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, Zürich, 8092, Switzerland
| | - Ueli Grossniklaus
- Department of Plant and Microbial Biology and Zürich-Basel Plant Science Center, University of Zürich, Zürich, 8008, Switzerland
| | - Bradley J Nelson
- Multi-Scale Robotics Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, Zürich, 8092, Switzerland
| |
Collapse
|
48
|
Lombardo MC, Lamattina L. Abscisic acid and nitric oxide modulate cytoskeleton organization, root hair growth and ectopic hair formation in Arabidopsis. Nitric Oxide 2018; 80:89-97. [PMID: 30236618 DOI: 10.1016/j.niox.2018.09.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/26/2018] [Accepted: 09/15/2018] [Indexed: 12/13/2022]
Abstract
Abscisic acid (ABA) and nitric oxide (NO) are two plant growth regulators that participate in many signaling cascades in different organs all along the plant life. Here, we were interested in deciphering the effects of ABA and NO on the cytoskeleton organization in a model of polarized cell growth like root hairs. Arabidopsis roots were exposed to different concentrations of ABA, and the length of primary root, epidermal cells and root hairs were measured. The NO concentration was detected with the NO-specific fluorescent probe DAF-FM DA. To quantify the effects of ABA and NO on cytoskeleton, Arabidopsis seedlings expressing GFP-MAP4 were used to analyze microtubules (MTs) orientation. Changes in cytoplasmic streaming were quantified through fluorescence recovery after photobleaching (FRAP) experiments using confocal laser scanning microscopy (CLSM) and the probe fluorescein diacetate (FDA). Results indicate that ABA decreases root hair length and induces the differentiation of atrichoblasts into trichoblasts, increasing root hair density. ABA also triggers an increase of NO level in root hairs. Both, ABA and NO affect MT organization in root hairs. While root hairs show MT orientation close to the longitudinal axis in control roots, ABA and NO treatments induce the oblique orientation of MTs. In parallel, cytoplasmic flow, executed by actin cytoskeleton, is enhanced by NO, in an ABA-independent manner. For all experimental conditions assayed, basal levels of NO are required to keep MT organization and cytoplasmic streaming. Our findings support ABA and NO as key modulators of growth and ectopic formation of root hairs through actions on cytoskeleton functions.
Collapse
Affiliation(s)
- María Cristina Lombardo
- Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata and Consejo Nacional de Investigaciones Científicas y Técnicas, Mar del Plata, Argentina
| | - Lorenzo Lamattina
- Instituto de Investigaciones Biológicas, Universidad Nacional de Mar del Plata and Consejo Nacional de Investigaciones Científicas y Técnicas, CC 1245, 7600, Mar del Plata, Argentina.
| |
Collapse
|
49
|
Lindermayr C, Durner J. Nitric oxide sensor proteins with revolutionary potential. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:3507-3510. [PMID: 29947809 PMCID: PMC6022558 DOI: 10.1093/jxb/ery193] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
This article comments on: Calvo-Begueria L, Rubio MC, Martínez JI, Pérez-Rontomé C, Delgado MJ, Bedmar EJ, Becana M. 2018. Redefining nitric oxide production in legume nodules through complementary insights from electron paramagnetic resonance spectroscopy and specific fluorescent probes. Journal of Experimental Botany 69, 3703–3714.
Collapse
Affiliation(s)
- Christian Lindermayr
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München – German Research Center for Environmental Health, München/Neuherberg, Germany
- Correspondence:
| | - Jörg Durner
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München – German Research Center for Environmental Health, München/Neuherberg, Germany
- Lehrstuhl für Biochemische Pflanzenpathologie, Technische Universität München, Freising, Germany
| |
Collapse
|
50
|
Wong A, Tian X, Gehring C, Marondedze C. Discovery of Novel Functional Centers With Rationally Designed Amino Acid Motifs. Comput Struct Biotechnol J 2018; 16:70-76. [PMID: 29977479 PMCID: PMC6026216 DOI: 10.1016/j.csbj.2018.02.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 01/23/2018] [Accepted: 02/25/2018] [Indexed: 12/14/2022] Open
Abstract
Plants are constantly exposed to environmental stresses and in part due to their sessile nature, they have evolved signal perception and adaptive strategies that are distinct from those of other eukaryotes. This is reflected at the cellular level where receptors and signalling molecules cannot be identified using standard homology-based searches querying with proteins from prokaryotes and other eukaryotes. One of the reasons for this is the complex domain architecture of receptor molecules. In order to discover hidden plant signalling molecules, we have developed a motif-based approach designed specifically for the identification of functional centers in plant molecules. This has made possible the discovery of novel components involved in signalling and stimulus-response pathways; the molecules include cyclic nucleotide cyclases, a nitric oxide sensor and a novel target for the hormone abscisic acid. Here, we describe the major steps of the method and illustrate it with recent and experimentally confirmed molecules as examples. We foresee that carefully curated search motifs supported by structural and bioinformatic assessments will uncover many more structural and functional aspects, particularly of signalling molecules.
Collapse
Affiliation(s)
- Aloysius Wong
- Department of Biology, Wenzhou-Kean University, 88 Daxue Road, Ouhai, Wenzhou, Zhejiang Province 325060, China
| | - Xuechen Tian
- Department of Biology, Wenzhou-Kean University, 88 Daxue Road, Ouhai, Wenzhou, Zhejiang Province 325060, China
| | - Chris Gehring
- Department of Chemistry, Biology & Biotechnology, University of Perugia, Borgo XX giugno, 74, 06121 Perugia, Italy
| | - Claudius Marondedze
- Laboratoire de Physiologie Cellulaire et Végétale, Université Grenoble Alpes, CEA/DRF/BIG, INRA UMR1417, CNRS UMR5168, 38054 Grenoble Cedex 9, France
| |
Collapse
|