51
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Petrov V, Hille J, Mueller-Roeber B, Gechev TS. ROS-mediated abiotic stress-induced programmed cell death in plants. FRONTIERS IN PLANT SCIENCE 2015; 6:69. [PMID: 25741354 PMCID: PMC4332301 DOI: 10.3389/fpls.2015.00069] [Citation(s) in RCA: 379] [Impact Index Per Article: 42.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 01/26/2015] [Indexed: 05/18/2023]
Abstract
During the course of their ontogenesis plants are continuously exposed to a large variety of abiotic stress factors which can damage tissues and jeopardize the survival of the organism unless properly countered. While animals can simply escape and thus evade stressors, plants as sessile organisms have developed complex strategies to withstand them. When the intensity of a detrimental factor is high, one of the defense programs employed by plants is the induction of programmed cell death (PCD). This is an active, genetically controlled process which is initiated to isolate and remove damaged tissues thereby ensuring the survival of the organism. The mechanism of PCD induction usually includes an increase in the levels of reactive oxygen species (ROS) which are utilized as mediators of the stress signal. Abiotic stress-induced PCD is not only a process of fundamental biological importance, but also of considerable interest to agricultural practice as it has the potential to significantly influence crop yield. Therefore, numerous scientific enterprises have focused on elucidating the mechanisms leading to and controlling PCD in response to adverse conditions in plants. This knowledge may help develop novel strategies to obtain more resilient crop varieties with improved tolerance and enhanced productivity. The aim of the present review is to summarize the recent advances in research on ROS-induced PCD related to abiotic stress and the role of the organelles in the process.
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Affiliation(s)
- Veselin Petrov
- Institute of Molecular Biology and Biotechnology, PlovdivBulgaria
| | - Jacques Hille
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Groningen, GroningenNetherlands
| | - Bernd Mueller-Roeber
- Department of Molecular Biology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-GolmGermany
| | - Tsanko S. Gechev
- Institute of Molecular Biology and Biotechnology, PlovdivBulgaria
- Department of Molecular Biology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-GolmGermany
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52
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Van Hautegem T, Waters AJ, Goodrich J, Nowack MK. Only in dying, life: programmed cell death during plant development. TRENDS IN PLANT SCIENCE 2015; 20:102-13. [PMID: 25457111 DOI: 10.1016/j.tplants.2014.10.003] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/26/2014] [Accepted: 10/03/2014] [Indexed: 05/21/2023]
Abstract
Programmed cell death (PCD) is a fundamental process of life. During the evolution of multicellular organisms, the actively controlled demise of cells has been recruited to fulfil a multitude of functions in development, differentiation, tissue homeostasis, and immune systems. In this review we discuss some of the multiple cases of PCD that occur as integral parts of plant development in a remarkable variety of cell types, tissues, and organs. Although research in the last decade has discovered a number of PCD regulators, mediators, and executers, we are still only beginning to understand the mechanistic complexity that tightly controls preparation, initiation, and execution of PCD as a process that is indispensable for successful vegetative and reproductive development of plants.
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Affiliation(s)
- Tom Van Hautegem
- Department of Plant Systems Biology, VIB, and Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
| | - Andrew J Waters
- Institute of Molecular Plant Sciences, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JH, UK
| | - Justin Goodrich
- Institute of Molecular Plant Sciences, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JH, UK
| | - Moritz K Nowack
- Department of Plant Systems Biology, VIB, and Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium.
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53
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Abstract
Programmed cell death can be defined as an organized cellular destruction and can be activated throughout plant development, as a defense response against invading pathogens or during environmental stress. The root hair assay presented herein enables in vivo quantitative measurements of programmed cell death based on the morphological changes of dying root hairs. Application of this novel, simple technique eliminates the need for establishing cell suspension cultures, resulting in a significant reduction in time, cost, and labor input. Here, we present a detailed root hair assay protocol for the dicotyledonous model plant Arabidopsis thaliana, where results from germination to scoring of cell death can be obtained within 7 days. We also suggest and present a panel of cell death inducing treatments which can be used to study abiotic stress- and mycotoxin-induced programmed cell death in the root hair system in Arabidopsis. A root hair assay protocol for the monocotyledonous model species Brachypodium distachyon is also included.
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Affiliation(s)
- Joanna Kacprzyk
- School of Biology and Environmental Science, University College Dublin, Belfield, Dublin 4, Ireland
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54
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Nakahara Y, Sawabe S, Kainuma K, Katsuhara M, Shibasaka M, Suzuki M, Yamamoto K, Oguri S, Sakamoto H. Yeast functional screen to identify genes conferring salt stress tolerance in Salicornia europaea. FRONTIERS IN PLANT SCIENCE 2015; 6:920. [PMID: 26579166 PMCID: PMC4623525 DOI: 10.3389/fpls.2015.00920] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 10/12/2015] [Indexed: 05/13/2023]
Abstract
Salinity is a critical environmental factor that adversely affects crop productivity. Halophytes have evolved various mechanisms to adapt to saline environments. Salicornia europaea L. is one of the most salt-tolerant plant species. It does not have special salt-secreting structures like a salt gland or salt bladder, and is therefore a good model for studying the common mechanisms underlying plant salt tolerance. To identify candidate genes encoding key proteins in the mediation of salt tolerance in S. europaea, we performed a functional screen of a cDNA library in yeast. The library was screened for genes that allowed the yeast to grow in the presence of 1.3 M NaCl. We obtained three full-length S. europaea genes that confer salt tolerance. The genes are predicted to encode (1) a novel protein highly homologous to thaumatin-like proteins, (2) a novel coiled-coil protein of unknown function, and (3) a novel short peptide of 32 residues. Exogenous application of a synthetic peptide corresponding to the 32 residues improved salt tolerance of Arabidopsis. The approach described in this report provides a rapid assay system for large-scale screening of S. europaea genes involved in salt stress tolerance and supports the identification of genes responsible for such mechanisms. These genes may be useful candidates for improving crop salt tolerance by genetic transformation.
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Affiliation(s)
- Yoshiki Nakahara
- Institute of Plant Science and Resources, Okayama UniversityKurashiki, Japan
| | - Shogo Sawabe
- Graduate School of Biological Sciences, Nara Institute of Science and TechnologyIkoma, Japan
| | - Kenta Kainuma
- Faculty of Bioindustry, Tokyo University of AgricultureAbashiri, Japan
| | - Maki Katsuhara
- Institute of Plant Science and Resources, Okayama UniversityKurashiki, Japan
| | - Mineo Shibasaka
- Institute of Plant Science and Resources, Okayama UniversityKurashiki, Japan
| | - Masanori Suzuki
- Faculty of Bioindustry, Tokyo University of AgricultureAbashiri, Japan
| | | | - Suguru Oguri
- Faculty of Bioindustry, Tokyo University of AgricultureAbashiri, Japan
| | - Hikaru Sakamoto
- Faculty of Bioindustry, Tokyo University of AgricultureAbashiri, Japan
- *Correspondence: Hikaru Sakamoto,
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55
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Gui CP, Dong X, Liu HK, Huang WJ, Zhang D, Wang SJ, Barberini ML, Gao XY, Muschietti J, McCormick S, Tang WH. Overexpression of the tomato pollen receptor kinase LePRK1 rewires pollen tube growth to a blebbing mode. THE PLANT CELL 2014; 26:3538-55. [PMID: 25194029 PMCID: PMC4213151 DOI: 10.1105/tpc.114.127381] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 07/19/2014] [Accepted: 08/15/2014] [Indexed: 05/20/2023]
Abstract
The tubular growth of a pollen tube cell is crucial for the sexual reproduction of flowering plants. LePRK1 is a pollen-specific and plasma membrane-localized receptor-like kinase from tomato (Solanum lycopersicum). LePRK1 interacts with another receptor, LePRK2, and with KINASE PARTNER PROTEIN (KPP), a Rop guanine nucleotide exchange factor. Here, we show that pollen tubes overexpressing LePRK1 or a truncated LePRK1 lacking its extracellular domain (LePRK1ΔECD) have enlarged tips but also extend their leading edges by producing "blebs." Coexpression of LePRK1 and tomato PLIM2a, an actin bundling protein that interacts with KPP in a Ca(2+)-responsive manner, suppressed these LePRK1 overexpression phenotypes, whereas pollen tubes coexpressing KPP, LePRK1, and PLIM2a resumed the blebbing growth mode. We conclude that overexpression of LePRK1 or LePRK1ΔECD rewires pollen tube growth to a blebbing mode, through KPP- and PLIM2a-mediated bundling of actin filaments from tip plasma membranes. Arabidopsis thaliana pollen tubes expressing LePRK1ΔECD also grew by blebbing. Our results exposed a hidden capability of the pollen tube cell: upon overexpression of a single membrane-localized molecule, LePRK1 or LePRK1ΔECD, it can switch to an alternative mechanism for extension of the leading edge that is analogous to the blebbing growth mode reported for Dictyostelium and for Drosophila melanogaster stem cells.
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Affiliation(s)
- Cai-Ping Gui
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xin Dong
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Hai-Kuan Liu
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Wei-Jie Huang
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Dong Zhang
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shu-Jie Wang
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - María Laura Barberini
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Dr. Hector Torres, C1428ADN Buenos Aires, Argentina
| | - Xiao-Yan Gao
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jorge Muschietti
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Dr. Hector Torres, C1428ADN Buenos Aires, Argentina Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EGA Buenos Aires, Argentina
| | - Sheila McCormick
- Plant Gene Expression Center, U.S. Department of Agriculture/Agricultural Research Service, and Department of Plant and Microbial Biology, University of California at Berkeley, Albany, California 94710
| | - Wei-Hua Tang
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China Plant Gene Expression Center, U.S. Department of Agriculture/Agricultural Research Service, and Department of Plant and Microbial Biology, University of California at Berkeley, Albany, California 94710
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56
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Marmiroli N, Maestri E. Plant peptides in defense and signaling. Peptides 2014; 56:30-44. [PMID: 24681437 DOI: 10.1016/j.peptides.2014.03.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 03/16/2014] [Accepted: 03/17/2014] [Indexed: 12/17/2022]
Abstract
This review focuses on plant peptides involved in defense against pathogen infection and those involved in the regulation of growth and development. Defense peptides, defensins, cyclotides and anti-microbial peptides are compared and contrasted. Signaling peptides are classified according to their major sites of activity. Finally, a network approach to creating an interactomic peptide map is described.
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Affiliation(s)
- Nelson Marmiroli
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy.
| | - Elena Maestri
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
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57
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Huang S, Hill RD, Wally OSD, Dionisio G, Ayele BT, Jami SK, Stasolla C. Hemoglobin Control of Cell Survival/Death Decision Regulates in Vitro Plant Embryogenesis. PLANT PHYSIOLOGY 2014; 165:810-825. [PMID: 24784758 PMCID: PMC4044835 DOI: 10.1104/pp.114.239335] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 04/22/2014] [Indexed: 05/19/2023]
Abstract
Programmed cell death (PCD) in multicellular organisms is a vital process in growth, development, and stress responses that contributes to the formation of tissues and organs. Although numerous studies have defined the molecular participants in apoptotic and PCD cascades, successful identification of early master regulators that target specific cells to live or die is limited. Using Zea mays somatic embryogenesis as a model system, we report that the expressions of two plant hemoglobin (Hb) genes (ZmHb1 and ZmHb2) regulate the cell survival/death decision that influences somatic embryogenesis through their cell-specific localization patterns. Suppression of either of the two ZmHbs is sufficient to induce PCD through a pathway initiated by elevated NO and Zn2+ levels and mediated by production of reactive oxygen species. The effect of the death program on the fate of the developing embryos is dependent on the localization patterns of the two ZmHbs. During somatic embryogenesis, ZmHb2 transcripts are restricted to a few cells anchoring the embryos to the subtending embryogenic tissue, whereas ZmHb1 transcripts extend to several embryonic domains. Suppression of ZmHb2 induces PCD in the anchoring cells, allowing the embryos to develop further, whereas suppression of ZmHb1 results in massive PCD, leading to abortion. We conclude that regulation of the expression of these ZmHbs has the capability to determine the developmental fate of the embryogenic tissue during somatic embryogenesis through their effect on PCD. This unique regulation might have implications for development and differentiation in other species.
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Affiliation(s)
- Shuanglong Huang
- Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 (S.H., R.D.H., O.S.D.W., B.T.A., S.K.J., C.S.); andDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University-Flakkebjerg, 4200 Slagelse, Denmark (G.D.)
| | - Robert D Hill
- Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 (S.H., R.D.H., O.S.D.W., B.T.A., S.K.J., C.S.); andDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University-Flakkebjerg, 4200 Slagelse, Denmark (G.D.)
| | - Owen S D Wally
- Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 (S.H., R.D.H., O.S.D.W., B.T.A., S.K.J., C.S.); andDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University-Flakkebjerg, 4200 Slagelse, Denmark (G.D.)
| | - Giuseppe Dionisio
- Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 (S.H., R.D.H., O.S.D.W., B.T.A., S.K.J., C.S.); andDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University-Flakkebjerg, 4200 Slagelse, Denmark (G.D.)
| | - Belay T Ayele
- Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 (S.H., R.D.H., O.S.D.W., B.T.A., S.K.J., C.S.); andDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University-Flakkebjerg, 4200 Slagelse, Denmark (G.D.)
| | - Sravan Kumar Jami
- Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 (S.H., R.D.H., O.S.D.W., B.T.A., S.K.J., C.S.); andDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University-Flakkebjerg, 4200 Slagelse, Denmark (G.D.)
| | - Claudio Stasolla
- Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 (S.H., R.D.H., O.S.D.W., B.T.A., S.K.J., C.S.); andDepartment of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University-Flakkebjerg, 4200 Slagelse, Denmark (G.D.)
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58
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Fendrych M, Van Hautegem T, Van Durme M, Olvera-Carrillo Y, Huysmans M, Karimi M, Lippens S, Guérin C, Krebs M, Schumacher K, Nowack M. Programmed Cell Death Controlled by ANAC033/SOMBRERO Determines Root Cap Organ Size in Arabidopsis. Curr Biol 2014; 24:931-40. [DOI: 10.1016/j.cub.2014.03.025] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 01/29/2014] [Accepted: 03/07/2014] [Indexed: 01/01/2023]
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59
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Merino I, Contreras A, Jing ZP, Gallardo F, Cánovas FM, Gómez L. Plantation forestry under global warming: hybrid poplars with improved thermotolerance provide new insights on the in vivo function of small heat shock protein chaperones. PLANT PHYSIOLOGY 2014; 164:978-91. [PMID: 24306533 PMCID: PMC3912120 DOI: 10.1104/pp.113.225730] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 12/02/2013] [Indexed: 05/22/2023]
Abstract
Climate-driven heat stress is a key factor affecting forest plantation yields. While its effects are expected to worsen during this century, breeding more tolerant genotypes has proven elusive. We report here a substantial and durable increase in the thermotolerance of hybrid poplar (Populus tremula×Populus alba) through overexpression of a major small heat shock protein (sHSP) with convenient features. Experimental evidence was obtained linking protective effects in the transgenic events with the unique chaperone activity of sHSPs. In addition, significant positive correlations were observed between phenotype strength and heterologous sHSP accumulation. The remarkable baseline levels of transgene product (up to 1.8% of total leaf protein) have not been reported in analogous studies with herbaceous species. As judged by protein analyses, such an accumulation is not matched either by endogenous sHSPs in both heat-stressed poplar plants and field-grown adult trees. Quantitative real time-polymerase chain reaction analyses supported these observations and allowed us to identify the poplar members most responsive to heat stress. Interestingly, sHSP overaccumulation was not associated with pleiotropic effects that might decrease yields. The poplar lines developed here also outperformed controls under in vitro and ex vitro culture conditions (callus biomass, shoot production, and ex vitro survival), even in the absence of thermal stress. These results reinforce the feasibility of improving valuable genotypes for plantation forestry, a field where in vitro recalcitrance, long breeding cycles, and other practical factors constrain conventional genetic approaches. They also provide new insights into the biological functions of the least understood family of heat shock protein chaperones.
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60
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Abstract
Plants are confronted with several biotic stresses such as microbial pathogens and other herbivores. To defend against such attackers, plants possess an array of pattern recognition receptors (PRRs) that sense the danger and consequently initiate a defence programme that prevents further damage and spreading of the pest. Characteristic pathogenic structures, so-called microbe-associated molecular patterns (MAMPs), serve as signals that allow the plant to sense invaders. Additionally, pathogens wound or damage the plant and the resulting release of damage-associated molecular patterns (DAMPs) serves as a warning signal. This review focuses on peptides that serve as triggers or amplifiers of plant defence and thus follow the definition of a MAMP or a DAMP.
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Affiliation(s)
- Markus Albert
- University of Tübingen, Center for Plant Molecular Biology, Department of Plant Biochemistry, Auf der Morgenstelle 32, D-72076 Tübingen, Germany
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61
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Zhao P, Zhou XM, Zhang LY, Wang W, Ma LG, Yang LB, Peng XB, Bozhkov PV, Sun MX. A bipartite molecular module controls cell death activation in the Basal cell lineage of plant embryos. PLoS Biol 2013; 11:e1001655. [PMID: 24058297 PMCID: PMC3769231 DOI: 10.1371/journal.pbio.1001655] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 08/01/2013] [Indexed: 11/19/2022] Open
Abstract
Plant zygote divides asymmetrically into an apical cell that develops into the embryo proper and a basal cell that generates the suspensor, a vital organ functioning as a conduit of nutrients and growth factors to the embryo proper. After the suspensor has fulfilled its function, it is removed by programmed cell death (PCD) at the late stages of embryogenesis. The molecular trigger of this PCD is unknown. Here we use tobacco (Nicotiana tabacum) embryogenesis as a model system to demonstrate that the mechanism triggering suspensor PCD is based on the antagonistic action of two proteins: a protease inhibitor, cystatin NtCYS, and its target, cathepsin H-like protease NtCP14. NtCYS is expressed in the basal cell of the proembryo, where encoded cystatin binds to and inhibits NtCP14, thereby preventing precocious onset of PCD. The anti-cell death effect of NtCYS is transcriptionally regulated and is repressed at the 32-celled embryo stage, leading to increased NtCP14 activity and initiation of PCD. Silencing of NtCYS or overexpression of NtCP14 induces precocious cell death in the basal cell lineage causing embryonic arrest and seed abortion. Conversely, overexpression of NtCYS or silencing of NtCP14 leads to profound delay of suspensor PCD. Our results demonstrate that NtCYS-mediated inhibition of NtCP14 protease acts as a bipartite molecular module to control initiation of PCD in the basal cell lineage of plant embryos.
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Affiliation(s)
- Peng Zhao
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Plant Hybrid Rice, Wuhan University, Wuhan, China
| | - Xue-mei Zhou
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Plant Hybrid Rice, Wuhan University, Wuhan, China
| | - Li-yao Zhang
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Plant Hybrid Rice, Wuhan University, Wuhan, China
| | - Wei Wang
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Plant Hybrid Rice, Wuhan University, Wuhan, China
| | - Li-gang Ma
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Plant Hybrid Rice, Wuhan University, Wuhan, China
| | - Li-bo Yang
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Plant Hybrid Rice, Wuhan University, Wuhan, China
| | - Xiong-bo Peng
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Plant Hybrid Rice, Wuhan University, Wuhan, China
| | - Peter V. Bozhkov
- Department of Plant Biology and Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Uppsala, Sweden
| | - Meng-xiang Sun
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Plant Hybrid Rice, Wuhan University, Wuhan, China
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62
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Waters A, Creff A, Goodrich J, Ingram G. "What we've got here is failure to communicate": zou mutants and endosperm cell death in seed development. PLANT SIGNALING & BEHAVIOR 2013; 8:e24368. [PMID: 23531691 PMCID: PMC3906420 DOI: 10.4161/psb.24368] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 03/19/2013] [Indexed: 05/24/2023]
Abstract
ZHOUPI, a unique and highly conserved bHLH transcription factor, controls both endosperm breakdown and embryonic surface formation during Arabidopsis seed development. We have demonstrated that these two processes are distinct, and that ZHOUPI regulates embryonic surface formation via a signaling pathway mediated by the subtilisin-like serine protease ABNORMAL LEAF SHAPE1, and the receptor-kinases GASSHO1 and GASSHO2. Gene expression profiling in mutant backgrounds has permitted the identification of genes whose expression depends on both ZHOUPI and ABNORMAL LEAF SHAPE1 and genes whose expression depends uniquely on ZHOUPI. The latter are presumably involved specifically in endosperm breakdown, and we discuss this poorly understood process in the light of our results. Finally, we consider the potential ancestral role of ZHOUPI and discuss how its relationship with ABNORMAL LEAF SHAPE1 may have evolved.
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Affiliation(s)
- Andrew Waters
- Laboratoire Reproduction et Développement des Plantes; BioSciences Gerland-Lyon Sud; ENS Lyon; Lyon, France
- Institute of Molecular Plant Sciences; University of Edinburgh; Edinburgh, UK
| | - Audrey Creff
- Laboratoire Reproduction et Développement des Plantes; BioSciences Gerland-Lyon Sud; ENS Lyon; Lyon, France
| | - Justin Goodrich
- Laboratoire Reproduction et Développement des Plantes; BioSciences Gerland-Lyon Sud; ENS Lyon; Lyon, France
- Institute of Molecular Plant Sciences; University of Edinburgh; Edinburgh, UK
| | - Gwyneth Ingram
- Laboratoire Reproduction et Développement des Plantes; BioSciences Gerland-Lyon Sud; ENS Lyon; Lyon, France
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63
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Yang J, Zhao X, Cheng K, Du H, Ouyang Y, Chen J, Qiu S, Huang J, Jiang Y, Jiang L, Ding J, Wang J, Xu C, Li X, Zhang Q. A Killer-Protector System Regulates Both Hybrid Sterility and Segregation Distortion in Rice. Science 2012; 337:1336-40. [DOI: 10.1126/science.1223702] [Citation(s) in RCA: 194] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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64
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Mittler R, Finka A, Goloubinoff P. How do plants feel the heat? Trends Biochem Sci 2012; 37:118-25. [DOI: 10.1016/j.tibs.2011.11.007] [Citation(s) in RCA: 508] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 11/08/2011] [Accepted: 11/21/2011] [Indexed: 10/14/2022]
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65
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Yeom SI, Seo E, Oh SK, Kim KW, Choi D. A common plant cell-wall protein HyPRP1 has dual roles as a positive regulator of cell death and a negative regulator of basal defense against pathogens. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2012; 69:755-68. [PMID: 22023393 DOI: 10.1111/j.1365-313x.2011.04828.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Although hybrid proline-rich proteins (HyPRPs) are ubiquitous in plants, little is known about their roles other than as cell-wall structural proteins. We identified the gene HyPRP1 in Capsicum annuum and Nicotiana benthamiana, which encodes a protein containing proline-rich domain and eight-cysteine motif (8CM) that is constitutively expressed in various organs, mostly in the root, but is down-regulated upon inoculation with either incompatible or compatible pathogens. Ectopic expression of HyPRP1 in plants accelerated cell death, showing developmental abnormality with down-regulation of ROS-scavenging genes, and enhanced pathogen susceptibility suppressing expression of defense-related genes. Conversely, silencing of HyPRP1 suppressed pathogen-induced cell death, but enhanced disease resistance, with up-regulation of defense-related genes and inhibition of in planta growth of bacterial pathogens independently of signal molecule-mediated pathways. Furthermore, the secreted 8CM was sufficient for these HyPRP1 functions. Together, our results suggest that a common plant cell-wall structural protein, HyPRP1, performs distinct dual roles in positive regulation of cell death and negative regulation of basal defense against pathogen.
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Affiliation(s)
- Seon-In Yeom
- Department of Plant Science, Plant Genomics and Breeding Institute, Seoul National University, Seoul, South Korea
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Control of Programmed Cell Death During Plant Reproductive Development. BIOCOMMUNICATION OF PLANTS 2012. [DOI: 10.1007/978-3-642-23524-5_10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Petrov VD, Van Breusegem F. Hydrogen peroxide-a central hub for information flow in plant cells. AOB PLANTS 2012; 2012:pls014. [PMID: 22708052 PMCID: PMC3366437 DOI: 10.1093/aobpla/pls014] [Citation(s) in RCA: 203] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 04/14/2012] [Indexed: 05/18/2023]
Abstract
BACKGROUND Hydrogen peroxide (H(2)O(2)) was initially recognized as a toxic reactive oxygen species, able to cause damage to a variety of cellular structures. However, it became clear in the last decade that H(2)O(2) can also act as a potent signalling molecule, involved in a plethora of physiological functions. SCOPE In the present review, we offer a brief summary of H(2)O(2) signalling events and focus on the mechanisms of its perception and signal transduction, the factors that act downstream, as well as H(2)O(2) interference with other information transfer mechanisms. CONCLUSION The significant scientific effort in the last 10 years to determine the position of H(2)O(2) in signal transduction networks in plants demonstrated that it is essential for both the communication with external biotic and abiotic stimuli and the control of developmentally regulated processes. In addition, H(2)O(2) complements, synergizes or antagonizes many cellular regulatory circuits by active interaction with other signals and plant hormones during growth, development and stress responses. Therefore, further understanding of H(2)O(2) signal transduction is not only of fundamental, but also of practical importance, since this knowledge may contribute to improve agricultural practices and reduce stress-induced damage to crops.
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Affiliation(s)
- Veselin Dimitrov Petrov
- Department of Plant Physiology and Plant Molecular Biology, University of Plovdiv, 24 Tsar Assen str., Plovdiv 4000, Bulgaria
- Department of Plant Systems Biology, VIB, Technologiepark 927, B-9052 Gent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, B-9052 Gent, Belgium
| | - Frank Van Breusegem
- Department of Plant Systems Biology, VIB, Technologiepark 927, B-9052 Gent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, B-9052 Gent, Belgium
- Corresponding author's e-mail address:
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