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Kumar R, Singh A, Shukla E, Singh P, Khan A, Singh NK, Srivastava A. Siderophore of plant growth promoting rhizobacterium origin reduces reactive oxygen species mediated injury in Solanum spp. caused by fungal pathogens. J Appl Microbiol 2024; 135:lxae036. [PMID: 38341275 DOI: 10.1093/jambio/lxae036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/12/2024]
Abstract
AIMS The study aims to explore antifungal properties of bacillibactin siderophore produced by the plant growth-promoting rhizobacterium (PGPR) Bacillus subtilis against fungal phytopathogens Alternaria porri and Fusarium equiseti isolated from Solanum lycopersicum and Solanum melongena plants. METHODS AND RESULTS Alternaria porri and F. equiseti were isolated from infected plants of eggplant and tomato, respectively. A plate assay was employed to assess the effect of bacillibactin against the phytopathogens. The antifungal potential of the PGPR was evaluated by estimation of dry fungal biomass, visualization of cellular deformity using compound and scanning electron microscopy, antioxidative enzyme assay and analysis of membrane damage via using lipid peroxidation. Inductively coupled plasma atomic emission spectroscopy (ICP-AES) analysis was employed to investigate changes in intracellular iron content. The impact of bacillibactin on pathogenesis was evaluated by infecting detached leaves of S. lycopersicum and S. melongena plants with both the pathogens and treating the infected leaves with bacillibactin. Leaves were further investigated for ROS accumulation, extent of necrosis and cell death. Our findings revealed significant damage to the hyphal structure of A. porri and F. equiseti following treatment with bacillibactin. Biomass reduction, elevated antioxidative enzyme levels, and membrane damage further substantiated the inhibitory effects of the siderophore on fungal growth. ICP-AES analysis indicates an increase in intracellular iron content suggesting enhanced iron uptake facilitated by bacillibactin. Moreover, application of 1500 µg ml-1 bacillibactin on infected leaves demonstrated a substantial inhibition of ROS accumulation, necrosis, and cell death upon bacillibactin treatment. CONCLUSIONS This study confirms the potent antagonistic activity of bacillibactin against both the phytopathogens A. porri and F. equiseti growth, supporting its potential as a promising biological control agent for fungal plant diseases. Bacillibactin-induced morphological, physiological, and biochemical alterations in the isolated fungi and pathogen-infected leaves highlight the prospects of bacillibactin as an effective and sustainable solution to mitigate economic losses associated with fungal infections in vegetable crops.
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Affiliation(s)
- Ravinsh Kumar
- Department of Life Science, School of Earth, Biological and Environmental Sciences, Central University of South Bihar, Bihar, Gaya 824236, India
| | - Ashutosh Singh
- Department of Life Science, School of Earth, Biological and Environmental Sciences, Central University of South Bihar, Bihar, Gaya 824236, India
| | - Ekta Shukla
- Department of Botany, Sunbeam College for Women, U.P., Bhagwanpur, Varanasi 221005, India
| | - Pratika Singh
- Department of Life Science, School of Earth, Biological and Environmental Sciences, Central University of South Bihar, Bihar, Gaya 824236, India
| | - Azmi Khan
- Department of Life Science, School of Earth, Biological and Environmental Sciences, Central University of South Bihar, Bihar, Gaya 824236, India
| | - Naveen Kumar Singh
- Department of Life Science, School of Earth, Biological and Environmental Sciences, Central University of South Bihar, Bihar, Gaya 824236, India
| | - Amrita Srivastava
- Department of Life Science, School of Earth, Biological and Environmental Sciences, Central University of South Bihar, Bihar, Gaya 824236, India
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Kumar D, Kirti PB. The genus Arachis: an excellent resource for studies on differential gene expression for stress tolerance. FRONTIERS IN PLANT SCIENCE 2023; 14:1275854. [PMID: 38023864 PMCID: PMC10646159 DOI: 10.3389/fpls.2023.1275854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023]
Abstract
Peanut Arachis hypogaea is a segmental allotetraploid in the section Arachis of the genus Arachis along with the Section Rhizomataceae. Section Arachis has several diploid species along with Arachis hypogaea and A. monticola. The section Rhizomataceae comprises polyploid species. Several species in the genus are highly tolerant to biotic and abiotic stresses and provide excellent sets of genotypes for studies on differential gene expression. Though there were several studies in this direction, more studies are needed to identify more and more gene combinations. Next generation RNA-seq based differential gene expression study is a powerful tool to identify the genes and regulatory pathways involved in stress tolerance. Transcriptomic and proteomic study of peanut plants under biotic stresses reveals a number of differentially expressed genes such as R genes (NBS-LRR, LRR-RLK, protein kinases, MAP kinases), pathogenesis related proteins (PR1, PR2, PR5, PR10) and defense related genes (defensin, F-box, glutathione S-transferase) that are the most consistently expressed genes throughout the studies reported so far. In most of the studies on biotic stress induction, the differentially expressed genes involved in the process with enriched pathways showed plant-pathogen interactions, phenylpropanoid biosynthesis, defense and signal transduction. Differential gene expression studies in response to abiotic stresses, reported the most commonly expressed genes are transcription factors (MYB, WRKY, NAC, bZIP, bHLH, AP2/ERF), LEA proteins, chitinase, aquaporins, F-box, cytochrome p450 and ROS scavenging enzymes. These differentially expressed genes are in enriched pathways of transcription regulation, starch and sucrose metabolism, signal transduction and biosynthesis of unsaturated fatty acids. These identified differentially expressed genes provide a better understanding of the resistance/tolerance mechanism, and the genes for manipulating biotic and abiotic stress tolerance in peanut and other crop plants. There are a number of differentially expressed genes during biotic and abiotic stresses were successfully characterized in peanut or model plants (tobacco or Arabidopsis) by genetic manipulation to develop stress tolerance plants, which have been detailed out in this review and more concerted studies are needed to identify more and more gene/gene combinations.
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Affiliation(s)
- Dilip Kumar
- Department of Microbial Genetics and Gene Expression, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Pulugurtha Bharadwaja Kirti
- Agri Biotech Foundation, Professor Jayashankar Telangana State (PJTS) Agricultural University, Hyderabad, Telangana, India
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3
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Wleklik K, Borek S. Vacuolar Processing Enzymes in Plant Programmed Cell Death and Autophagy. Int J Mol Sci 2023; 24:ijms24021198. [PMID: 36674706 PMCID: PMC9862320 DOI: 10.3390/ijms24021198] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/02/2023] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
Vacuolar processing enzymes (VPEs) are plant cysteine proteases that are subjected to autoactivation in an acidic pH. It is presumed that VPEs, by activating other vacuolar hydrolases, are in control of tonoplast rupture during programmed cell death (PCD). Involvement of VPEs has been indicated in various types of plant PCD related to development, senescence, and environmental stress responses. Another pathway induced during such processes is autophagy, which leads to the degradation of cellular components and metabolite salvage, and it is presumed that VPEs may be involved in the degradation of autophagic bodies during plant autophagy. As both PCD and autophagy occur under similar conditions, research on the relationship between them is needed, and VPEs, as key vacuolar proteases, seem to be an important factor to consider. They may even constitute a potential point of crosstalk between cell death and autophagy in plant cells. This review describes new insights into the role of VPEs in plant PCD, with an emphasis on evidence and hypotheses on the interconnections between autophagy and cell death, and indicates several new research opportunities.
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4
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Dong C, Li R, Wang N, Liu Y, Zhang Y, Bai S. Apple vacuolar processing enzyme 4 is regulated by cysteine protease inhibitor and modulates fruit disease resistance. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:3758-3773. [PMID: 35259265 DOI: 10.1093/jxb/erac093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Ring rot is a destructive apple disease caused by Botryosphaeria dothidea. The resistance mechanism of apple plants to B. dothidea remains unclear. Here, we show that APPLE VACUOLAR PROCESSING ENZYME 4 (MdVPE4) is involved in resistance to B. dothidea. MdVPE4 silencing reduced fruit disease resistance, whereas its overexpression improved resistance. Gene expression analysis revealed that MdVPE4 influenced the expression of fruit disease resistance-related genes, such as APPLE POLYGALACTURONASE 1 (MdPG1), APPLE POLYGALACTURONASE INHIBITOR PROTEIN 1 (MdPGIP1), APPLE ENDOCHITINASE 1 (MdCHI1), and APPLE THAUMATIN-LIKE PROTEIN 1 (MdTHA1). The expression of the four genes responding to B. dothidea infection decreased in MdVPE4-silenced fruits. Further analysis demonstrated that B. dothidea infection induced MdVPE4 expression and enzyme activation in apple fruits. Moreover, MdVPE4 activity was modulated by apple cysteine proteinase inhibitor 1 (MdCPI1), which also contributed to resistance towards B. dothidea, as revealed by gene overexpression and silencing analysis. MdCPI1 interacted with MdVPE4 and inhibited its activity. However, MdCPI1 expression was decreased by B. dothidea infection. Taken together, our findings indicate that the interaction between MdVPE4 and MdCPI1 plays an important role in modulating fruit disease resistance to B. dothidea.
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Affiliation(s)
- Chaohua Dong
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Ronghui Li
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Nan Wang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Yingshuang Liu
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Yugang Zhang
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Suhua Bai
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
- Key Laboratory of Plant Biotechnology of Shandong Province, Qingdao, China
- Shandong Province Key Laboratory of Applied Mycology, Qingdao, China
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Yamada K, Basak AK, Goto-Yamada S, Tarnawska-Glatt K, Hara-Nishimura I. Vacuolar processing enzymes in the plant life cycle. THE NEW PHYTOLOGIST 2020; 226:21-31. [PMID: 31679161 DOI: 10.1111/nph.16306] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 10/14/2019] [Indexed: 05/23/2023]
Abstract
Vacuolar processing enzyme (VPE) is a cysteine-type endopeptidase that has a substrate-specificity for asparagine or aspartic acid residues and cleaves peptide bonds at their carboxyl-terminal side. Various vacuolar proteins are synthesized as larger proprotein precursors, and VPE is an important initiator of maturation and activation of these proteins. It mediates programmed cell death (PCD) by provoking vacuolar rupture and initiating the proteolytic cascade leading to PCD. Vacuolar processing enzyme also possesses a peptide ligation activity, which is responsible for producing cyclic peptides in several plant species. These unique functions of VPE support developmental and environmental responses in plants. The number of VPE homologues is higher in angiosperm species, indicating that there has been differentiation and specialization of VPE function over the course of evolution. Angiosperm VPEs are separated into two major types: the γ-type VPEs, which are expressed mainly in vegetative organs, and the β-type VPEs, whose expression occurs mainly in storage organs; in eudicots, the δ-type VPEs are further separated within γ-type VPEs. This review also considers the importance of processing and peptide ligation by VPE in vacuolar protein maturation.
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Affiliation(s)
- Kenji Yamada
- Małopolska Centre of Biotechnology, Jagiellonian University, Krakow, 30-387, Poland
| | - Arpan Kumar Basak
- Małopolska Centre of Biotechnology, Jagiellonian University, Krakow, 30-387, Poland
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Krakow, 30-387, Poland
| | - Shino Goto-Yamada
- Małopolska Centre of Biotechnology, Jagiellonian University, Krakow, 30-387, Poland
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Singh NK, Shukla P, Kirti PB. A CBL-interacting protein kinase AdCIPK5 confers salt and osmotic stress tolerance in transgenic tobacco. Sci Rep 2020; 10:418. [PMID: 31941979 PMCID: PMC6962456 DOI: 10.1038/s41598-019-57383-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 12/30/2019] [Indexed: 11/17/2022] Open
Abstract
CBL interacting protein kinases play important roles in adaptation to stress conditions. In the present study, we isolated a CBL-interacting protein kinase homolog (AdCIPK5) from a wild peanut (Arachis diogoi) with similarity to AtCIPK5 of Arabidopsis. Expression analyses in leaves of the wild peanut showed AdCIPK5 induction by exogenous signaling molecules including salicylic acid, abscisic acid and ethylene or abiotic stress factors like salt, PEG and sorbitol. The recombinant AdCIPK5-GFP protein was found to be localized to the nucleus, plasma membrane and cytoplasm. We overexpressed AdCIPK5 in tobacco plants and checked their level of tolerance to biotic and abiotic stresses. While wild type and transgenic plants displayed no significant differences to the treatment with the phytopathogen, Phytophthora parasitica pv nicotianae, the expression of AdCIPK5 increased salt and osmotic tolerance in transgenic plants. Analysis of different physiological parameters revealed that the transgenic plants maintained higher chlorophyll content and catalase activity with lower levels of H2O2 and MDA content during the abiotic stress conditions. AdCIPK5 overexpression also contributed to the maintenance of a higher the K+/Na+ ratio under salt stress. The enhanced tolerance of transgenic plants was associated with elevated expression of stress-related marker genes; NtERD10C, NtERD10D, NtNCED1, NtSus1, NtCAT and NtSOS1. Taken together, these results indicate that AdCIPK5 is a positive regulator of salt and osmotic stress tolerance.
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Affiliation(s)
- Naveen Kumar Singh
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India.
- Agricultural Research Organization-the Volcani Center, 68 HaMaccabim Road P.O.B 15159, Rishon LeZion, 7505101, Israel.
| | - Pawan Shukla
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
- Central Sericultural Research and Training Institute, Central Silk Board, NH-1A, Gallandar, Pampore, 192121, J & K, India
| | - P B Kirti
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
- Agri Biotech Foundation, Rajendranagar, Hyderabad, 500030, India
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Zhang HX, Ali M, Feng XH, Jin JH, Huang LJ, Khan A, Lv JG, Gao SY, Luo DX, Gong ZH. A Novel Transcription Factor CaSBP12 Gene Negatively Regulates the Defense Response against Phytophthora capsici in Pepper ( Capsicum annuum L.). Int J Mol Sci 2018; 20:E48. [PMID: 30583543 PMCID: PMC6337521 DOI: 10.3390/ijms20010048] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 12/16/2018] [Accepted: 12/20/2018] [Indexed: 01/24/2023] Open
Abstract
SBP-box (Squamosa-promoter binding protein) genes are a type of plant-specific transcription factor and play important roles in plant growth, signal transduction and stress response. However, little is known about the SBP-box genes in pepper (CaSBP), especially in the process of Phytophthora capsici infection. In this study, a novel gene (CaSBP12) was selected from the CaSBP gene family, which was isolated from the pepper genome database in our previous study. The CaSBP12 gene was located in the nucleus of the cell and its silencing in the pepper plant enhanced the defense response against Phytophthora capsici infection. After inoculation with Phytophthora capsici, the root activity of the CaSBP12-silenced plants is compared to control plants, while malondialdehyde (MDA) content is compared viceversa. Additionally, the expression of defense related genes (CaPO1, CaSAR8.2, CaBPR1, and CaDEF1) in the silenced plants were induced to different degrees and the peak of CaSAR8.2 and CaBPR1 were higher than that of CaDEF1. The CaSBP12 over-expressed Nicotiana benthamiana plants were more susceptible to Phytophthora capsici infection with higher EC (electrical conductivity) and MDA contents as compared to the wild-type. The relative expression of defense related genes (NbDEF, NbNPR1, NbPR1a, and NbPR1b) in transgenic and wild-type Nicotiana benthamiana plants were induced, especially the NbPR1a and NbPR1b. In conclusion, these results indicate that CaSBP12 gene negative regulates the defense response against Phytophthora capsici infection which suggests their potentially significant role in plant defense. To our knowledge, this is the first report on CaSBP gene which negative regulate defense response.
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Affiliation(s)
- Huai-Xia Zhang
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Muhammad Ali
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Xiao-Hui Feng
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Jing-Hao Jin
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Liu-Jun Huang
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Abid Khan
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Jing-Gang Lv
- Tianjin Vegetable Research Center, Tianjin 300192, China.
| | - Su-Yan Gao
- Tianjin Vegetable Research Center, Tianjin 300192, China.
| | - De-Xu Luo
- Xuhuai Region Huaiyin Institute of Agricultural Sciences, Jiangsu 223001, China.
| | - Zhen-Hui Gong
- College of Horticulture, Northwest A&F University, Yangling 712100, China.
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8
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Rampuria S, Bag P, Rogan CJ, Sharma A, Gassmann W, Kirti PB. Pathogen-induced AdDjSKI of the wild peanut, Arachis diogoi, potentiates tolerance of multiple stresses in E. coli and tobacco. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 272:62-74. [PMID: 29807607 DOI: 10.1016/j.plantsci.2018.03.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 03/25/2018] [Accepted: 03/31/2018] [Indexed: 06/08/2023]
Abstract
A gene encoding a serine-rich DnaJIII protein called AdDjSKI that has a 4Fe-4S cluster domain was found to be differentially upregulated in the wild peanut, Arachis diogoi in its resistance responses against the late leaf spot causing fungal pathogen Phaeoisariopsis personata when compared with the cultivated peanut, Arachis hypogaea. AdDjSKI is induced in multiple stress conditions in A. diogoi. Recombinant E. coli cells expressing AdDjSKI showed better growth kinetics when compared with vector control cells under salinity, osmotic, acidic and alkaline stress conditions. Overexpression of this type three J-protein potentiates not only abiotic stress tolerance in Nicotiana tabacum var. Samsun, but also enhances its disease resistance against the phytopathogenic fungi Phytophthora parasitica pv nicotianae and Sclerotinia sclerotiorum. In the present study we show transcriptional upregulation of APX, Mn-SOD and HSP70 under heat stress and increased transcripts of PR genes in response to fungal infection. This transmembrane-domain-containing J protein displays punctate localization in chloroplasts. AdDjSKI appears to ensure proper folding of proteins associated with the photosynthetic machinery under stress.
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Affiliation(s)
- Sakshi Rampuria
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Pushan Bag
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Conner J Rogan
- Division of Biological Sciences, Christopher S. Bond Life Sciences Center and Interdisciplinary Plant Group, University of Missouri, Columbia, MO, USA
| | - Akanksha Sharma
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Walter Gassmann
- Division of Plant Sciences, Christopher S. Bond Life Sciences Center and Interdisciplinary Plant Group, University of Missouri, Columbia, MO, USA
| | - P B Kirti
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India.
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10
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Zamyatnin AA. Plant Proteases Involved in Regulated Cell Death. BIOCHEMISTRY (MOSCOW) 2016; 80:1701-15. [PMID: 26878575 DOI: 10.1134/s0006297915130064] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Each plant genome encodes hundreds of proteolytic enzymes. These enzymes can be divided into five distinct classes: cysteine-, serine-, aspartic-, threonine-, and metalloproteinases. Despite the differences in their structural properties and activities, members of all of these classes in plants are involved in the processes of regulated cell death - a basic feature of eukaryotic organisms. Regulated cell death in plants is an indispensable mechanism supporting plant development, survival, stress responses, and defense against pathogens. This review summarizes recent advances in studies of plant proteolytic enzymes functioning in the initiation and execution of distinct types of regulated cell death.
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Affiliation(s)
- A A Zamyatnin
- Sechenov First Moscow State Medical University, Institute of Molecular Medicine, Moscow, 119991, Russia
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11
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Tang Y, Wang R, Gong P, Li S, Wang Y, Zhang C. Gene Cloning, Expression and Enzyme Activity of Vitis vinifera Vacuolar Processing Enzymes (VvVPEs). PLoS One 2016; 11:e0160945. [PMID: 27551866 PMCID: PMC4994961 DOI: 10.1371/journal.pone.0160945] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 07/27/2016] [Indexed: 11/24/2022] Open
Abstract
Vacuolar processing enzymes (VPEs) have received considerable attention due to their caspase-1-like activity and ability to regulate programmed cell death (PCD), which plays an essential role in the development of stenospermocarpic seedless grapes ovules. To characterize VPEs and the relationship between stenospermocarpic grapes and the VPE gene family, we identified 3 Vitis vinifera VPE genes (VvβVPE, VvγVPE, and VvδVPE) from the PN40024 grape genome and cloned the full-length complementary DNAs (cDNAs) from the ‘Vitis vinifera cv. Pinot Noir’ and ‘Vitis vinifera cv. Thompson Seedless’ varietals. Each of the VPEs contained a typical catalytic dyad [His (177), Cys (219)] and substrate binding pocket [Arg (112), Arg (389), Ser (395)], except that Ser (395) in the VvγVPE protein sequence was replaced with alanine. Phylogenetic analysis of 4 Arabidopsis thaliana and 6 Vitis vinifera VPEs revealed that the 10 VPEs form 3 major branches. Furthermore, the 6 grapevine VPEs share a similar gene structure, with 9 exons and 8 introns. The 6 grapevine VPEs are located on 3 different chromosomes. We also tested the enzymatic activity of recombinant VPEs expressed in the Pichia Pastoris expression system and found that the VvVPEs exhibit cysteine peptidase activity. Tissue-specific expression analysis showed that VvδVPE is only expressed in flowers, buds and ovules, that VvγVPE is expressed in various tissues, and that VvβVPE was expressed in roots, flowers, buds and ovules. The results of quantitative real-time PCR (qRT-PCR) suggested that VvβVPE in seeded grapes increased significantly at 30 days after full-bloom (DAF), close to the timing of endosperm abortion at 32 DAF. These results suggested that VvβVPE is related to ovule abortion in seedless grapes. Our experiments provide a new perspective for understanding the mechanism of stenospermocarpic seedlessness and represent a useful reference for the further study of VPEs.
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Affiliation(s)
- Yujin Tang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, P.R. China, Yangling, 712100, Shaanxi, China
| | - Ruipu Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, P.R. China, Yangling, 712100, Shaanxi, China
| | - Peijie Gong
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, P.R. China, Yangling, 712100, Shaanxi, China
| | - Shuxiu Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, P.R. China, Yangling, 712100, Shaanxi, China
| | - Yuejin Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, P.R. China, Yangling, 712100, Shaanxi, China
| | - Chaohong Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northwest Region), Ministry of Agriculture, P.R. China, Yangling, 712100, Shaanxi, China
- * E-mail:
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12
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Kumar D, Rampuria S, Singh NK, Kirti PB. A novel zinc-binding alcohol dehydrogenase 2 from Arachis diogoi, expressed in resistance responses against late leaf spot pathogen, induces cell death when transexpressed in tobacco. FEBS Open Bio 2016; 6:200-10. [PMID: 27047748 PMCID: PMC4794784 DOI: 10.1002/2211-5463.12040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 12/11/2015] [Accepted: 01/08/2016] [Indexed: 12/26/2022] Open
Abstract
A novel zinc-binding alcohol dehydrogenase 2 (AdZADH2) was significantly upregulated in a wild peanut, Arachis diogoi treated with conidia of late leaf spot (LLS) pathogen, Phaeoisariopsis personata. This upregulation was not observed in a comparative analysis of cultivated peanut, which is highly susceptible to LLS. This zinc-binding alcohol dehydrogenase possessed a Rossmann fold containing NADB domain in addition to the MDR domain present in all previously characterized plant ADH genes/proteins. Transient over-expression of AdZADH2 under an estradiol inducible promoter (XVE) resulted in hypersensitive response (HR)-like cell death in tobacco leaf. However, the same level of cell death was not observed when the domains were transiently expressed individually. Cell death observed in tobacco was associated with overexpression of cell death related proteins, antioxidative enzymes such as SOD, CAT and APX and pathogenesis-related (PR) proteins. In A. diogoi, AdZADH2 expression was significantly upregulated in response to the plant signaling hormones salicylic acid, methyl jasmonate, and sodium nitroprusside.
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Affiliation(s)
- Dilip Kumar
- Department of Plant Sciences School of Life Sciences University of Hyderabad India
| | - Sakshi Rampuria
- Department of Plant Sciences School of Life Sciences University of Hyderabad India
| | - Naveen Kumar Singh
- Department of Plant Sciences School of Life Sciences University of Hyderabad India
| | - Pulugurtha B Kirti
- Department of Plant Sciences School of Life Sciences University of Hyderabad India
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Poncet V, Scutt C, Tournebize R, Villegente M, Cueff G, Rajjou L, Balliau T, Zivy M, Fogliani B, Job C, de Kochko A, Sarramegna-Burtet V, Job D. The Amborella vacuolar processing enzyme family. FRONTIERS IN PLANT SCIENCE 2015; 6:618. [PMID: 26347753 PMCID: PMC4544213 DOI: 10.3389/fpls.2015.00618] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 07/27/2015] [Indexed: 05/30/2023]
Abstract
Most vacuolar proteins are synthesized on rough endoplasmic reticulum as proprotein precursors and then transported to the vacuoles, where they are converted into their respective mature forms by vacuolar processing enzymes (VPEs). In the case of the seed storage proteins, this process is of major importance, as it conditions the establishment of vigorous seedlings. Toward the goal of identifying proteome signatures that could be associated with the origin and early diversification of angiosperms, we previously characterized the 11S-legumin-type seed storage proteins from Amborella trichopoda, a rainforest shrub endemic to New Caledonia that is also the probable sister to all other angiosperms (Amborella Genome Project, 2013). In the present study, proteomic and genomic approaches were used to characterize the VPE family in this species. Three genes were found to encode VPEs in the Amborella's genome. Phylogenetic analyses showed that the Amborella sequences grouped within two major clades of angiosperm VPEs, indicating that the duplication that generated the ancestors of these clades occurred before the most recent common ancestor of living angiosperms. A further important duplication within the VPE family appears to have occurred in common ancestor of the core eudicots, while many more recent duplications have also occurred in specific taxa, including both Arabidopsis thaliana and Amborella. An analysis of natural genetic variation for each of the three Amborella VPE genes revealed the absence of selective forces acting on intronic and exonic single-nucleotide polymorphisms among several natural Amborella populations in New Caledonia.
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Affiliation(s)
- Valérie Poncet
- Institut de Recherche pour le Développement, UMR Diversité, Adaptation et Développement des PlantesMontpellier, France
| | - Charlie Scutt
- Laboratoire Reproduction et Développement des Plantes, UMR 5667, Ecole Normale Supérieure de LyonLyon, France
| | - Rémi Tournebize
- Institut de Recherche pour le Développement, UMR Diversité, Adaptation et Développement des PlantesMontpellier, France
| | - Matthieu Villegente
- Laboratoire Insulaire du Vivant et de l'Environnement, Université de la Nouvelle-CalédonieNouméa, New Caledonia
| | - Gwendal Cueff
- Institut National de la Recherche Agronomique, Institut Jean-Pierre Bourgin, UMR 1318 Institut National de la Recherche Agronomique/AgroParisTech, ERL Centre National de la Recherche Scientifique 3559, Laboratoire d'Excellence “Saclay Plant Sciences” (LabEx SPS), RD10Versailles, France
- AgroParisTech, Chaire de Physiologie VégétaleParis, France
| | - Loïc Rajjou
- Institut National de la Recherche Agronomique, Institut Jean-Pierre Bourgin, UMR 1318 Institut National de la Recherche Agronomique/AgroParisTech, ERL Centre National de la Recherche Scientifique 3559, Laboratoire d'Excellence “Saclay Plant Sciences” (LabEx SPS), RD10Versailles, France
- AgroParisTech, Chaire de Physiologie VégétaleParis, France
| | - Thierry Balliau
- Institut National de la Recherche Agronomique, Plateforme d'Analyse Protéomique de Paris Sud-Ouest, Institut National de la Recherche Agronomique/Université Paris-Sud/Centre National de la Recherche Scientifique/AgroParisTech, UMR 0320/UMR 8120 Génétique Quantitative et Evolution – Le MoulonGif-sur-Yvette, France
| | - Michel Zivy
- Institut National de la Recherche Agronomique, Plateforme d'Analyse Protéomique de Paris Sud-Ouest, Institut National de la Recherche Agronomique/Université Paris-Sud/Centre National de la Recherche Scientifique/AgroParisTech, UMR 0320/UMR 8120 Génétique Quantitative et Evolution – Le MoulonGif-sur-Yvette, France
| | - Bruno Fogliani
- Laboratoire Insulaire du Vivant et de l'Environnement, Université de la Nouvelle-CalédonieNouméa, New Caledonia
- Institut Agronomique Néo-Calédonien, Diversités Biologique et Fonctionnelle des Ecosystèmes TerrestresPaïta, New Caledonia
| | - Claudette Job
- UMR 5240 Laboratoire Mixte Centre National de la Recherche Scientifique/Institut National des Sciences Appliquées/Université Claude Bernard Lyon 1/Bayer CropScienceLyon, France
| | - Alexandre de Kochko
- Institut de Recherche pour le Développement, UMR Diversité, Adaptation et Développement des PlantesMontpellier, France
| | - Valérie Sarramegna-Burtet
- Laboratoire Insulaire du Vivant et de l'Environnement, Université de la Nouvelle-CalédonieNouméa, New Caledonia
| | - Dominique Job
- AgroParisTech, Chaire de Physiologie VégétaleParis, France
- UMR 5240 Laboratoire Mixte Centre National de la Recherche Scientifique/Institut National des Sciences Appliquées/Université Claude Bernard Lyon 1/Bayer CropScienceLyon, France
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