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Freitas CDT, Demarco D, Oliveira JS, Ramos MV. Review: Laticifer as a plant defense mechanism. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 346:112136. [PMID: 38810884 DOI: 10.1016/j.plantsci.2024.112136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 05/22/2024] [Accepted: 05/25/2024] [Indexed: 05/31/2024]
Abstract
Laticifers have been utilized as paradigms to enhance comprehension of specific facets of plant ecology and evolution. From the beginning of seedling growth, autonomous laticifer networks are formed throughout the plant structure, extending across all tissues and organs. The vast majority of identified products resulting from laticifer chemistry and metabolism are linked to plant defense. The latex, which is the fluid contained within laticifers, is maintained under pressure and has evolved to serve as a defense mechanism against both aggressors and invaders, irrespective of their capabilities or tactics. Remarkably, the latex composition varies among different species. The current goal is to understand the specific functions of various latex components in combating plant enemies. Therefore, the study of latex's chemical composition and proteome plays a critical role in advancing our understanding about plant defense mechanisms. Here, we will discuss some of these aspects.
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Affiliation(s)
- Cleverson D T Freitas
- Department of Biochemistry and Molecular Biology, Federal University of Ceara. Campus do Pici, Bloco 907, Fortaleza, Ceará CEP 60451-970, Brazil.
| | - Diego Demarco
- Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Jefferson S Oliveira
- Federal University of Delta of Parnaíba, Campus Ministro Reis Velloso, Parnaíba, PI, Brazil
| | - Márcio V Ramos
- Department of Biochemistry and Molecular Biology, Federal University of Ceara. Campus do Pici, Bloco 907, Fortaleza, Ceará CEP 60451-970, Brazil.
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2
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Dölfors F, Ilbäck J, Bejai S, Fogelqvist J, Dixelius C. Nitrate transporter protein NPF5.12 and major latex-like protein MLP6 are important defense factors against Verticillium longisporum. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:4148-4164. [PMID: 38666306 PMCID: PMC11233413 DOI: 10.1093/jxb/erae185] [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: 07/17/2023] [Accepted: 04/23/2024] [Indexed: 07/11/2024]
Abstract
Plant defense responses to the soil-borne fungus Verticillium longisporum causing stem stripe disease on oilseed rape (Brassica napus) are poorly understood. In this study, a population of recombinant inbred lines (RILs) using the Arabidopsis accessions Sei-0 and Can-0 was established. Composite interval mapping, transcriptome data, and T-DNA mutant screening identified the NITRATE/PEPTIDE TRANSPORTER FAMILY 5.12 (AtNPF5.12) gene as being associated with disease susceptibility in Can-0. Co-immunoprecipitation revealed interaction between AtNPF5.12 and the MAJOR LATEX PROTEIN family member AtMLP6, and fluorescence microscopy confirmed this interaction in the plasma membrane and endoplasmic reticulum. CRISPR/Cas9 technology was applied to mutate the NPF5.12 and MLP6 genes in B. napus. Elevated fungal growth in the npf5.12 mlp6 double mutant of both oilseed rape and Arabidopsis demonstrated the importance of these genes in defense against V. longisporum. Colonization of this fungus depends also on available nitrates in the host root. Accordingly, the negative effect of nitrate depletion on fungal growth was less pronounced in Atnpf5.12 plants with impaired nitrate transport. In addition, suberin staining revealed involvement of the NPF5.12 and MLP6 genes in suberin barrier formation. Together, these results demonstrate a dependency on multiple plant factors that leads to successful V. longisporum root infection.
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Affiliation(s)
- Fredrik Dölfors
- Swedish University of Agricultural Sciences, Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, P.O. Box 7080, S-75007 Uppsala, Sweden
| | - Jonas Ilbäck
- Swedish University of Agricultural Sciences, Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, P.O. Box 7080, S-75007 Uppsala, Sweden
| | - Sarosh Bejai
- Swedish University of Agricultural Sciences, Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, P.O. Box 7080, S-75007 Uppsala, Sweden
| | - Johan Fogelqvist
- Swedish University of Agricultural Sciences, Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, P.O. Box 7080, S-75007 Uppsala, Sweden
| | - Christina Dixelius
- Swedish University of Agricultural Sciences, Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, P.O. Box 7080, S-75007 Uppsala, Sweden
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Mohan K, Das S, Singh M. Leaf dicers of Nelliyampathy: Observations of preconsumptive latex avoidance by a sciurid. Ecology 2024; 105:e4294. [PMID: 38558226 DOI: 10.1002/ecy.4294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/20/2023] [Accepted: 02/08/2024] [Indexed: 04/04/2024]
Affiliation(s)
- Kamaraj Mohan
- Biopsychology Laboratory, Institution of Excellence, University of Mysore, Mysuru, India
| | - Sayantan Das
- Biopsychology Laboratory, Institution of Excellence, University of Mysore, Mysuru, India
- Wildlife Information Liaison Development, Coimbatore, India
| | - Mewa Singh
- Biopsychology Laboratory, Institution of Excellence, University of Mysore, Mysuru, India
- Zoo Outreach Organization, Coimbatore, India
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4
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Huber M. Latex - a potential plant defense against microbes. Trends Microbiol 2024; 32:224-227. [PMID: 38220579 DOI: 10.1016/j.tim.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/16/2024]
Abstract
Laticifers - among the most common defensive reservoirs in plants - are hypothesized to benefit plant fitness by preventing microbes from entering wounds. I argue that while latex seals wounds, and can suppress microbial growth, direct evidence that these processes benefit plant fitness is scarce. I outline a roadmap for filling this knowledge gap.
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Affiliation(s)
- Meret Huber
- Institute of Organismic and Molecular Evolution, Johannes Gutenberg University Mainz, Johann-Joachim-Becher-Weg 7, 55128 Mainz, Germany.
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5
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Herculano RD, Mussagy CU, Guerra NB, Sant'Ana Pegorin Brasil G, Floriano JF, Burd BS, Su Y, da Silva Sasaki JC, Marques PAC, Scontri M, Miranda MCR, Ferreira ES, Primo FL, Fernandes MA, He S, Forster S, Ma C, de Lima Lopes Filho PE, Dos Santos LS, Silva GR, Crotti AEM, de Barros NR, Li B, de Mendonça RJ. Recent advances and perspectives on natural latex serum and its fractions for biomedical applications. BIOMATERIALS ADVANCES 2024; 157:213739. [PMID: 38154400 DOI: 10.1016/j.bioadv.2023.213739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/16/2023] [Accepted: 12/19/2023] [Indexed: 12/30/2023]
Abstract
Advances and the discovery of new biomaterials have opened new frontiers in regenerative medicine. These biomaterials play a key role in current medicine by improving the life quality or even saving the lives of millions of people. Since the 2000s, Natural Rubber Latex (NRL) has been employed as wound dressings, mechanical barrier for Guided Bone Regeneration (GBR), matrix for drug delivery, and grafting. NRL is a natural polymer that can stimulate cell proliferation, neoangiogenesis, and extracellular matrix (ECM) formation. Furthermore, it is well established that proteins and other biologically active molecules present in the Natural Latex Serum (NLS) are responsible for the biological properties of NRL. NLS can be obtained from NRL by three main methods, namely (i) Centrifugation (fractionation of NRL in distinct fractions), (ii) Coagulation and sedimentation (coagulating NRL to separate the NLS from rubber particles), and (iii) Alternative extraction process (elution from NRL membrane). In this review, the chemical composition, physicochemical properties, toxicity, and other biological information such as osteogenesis, vasculogenesis, adhesion, proliferation, antimicrobial behavior, and antitumoral activity of NLS, as well as some of its medical instruments and devices are discussed. The progress in NLS applications in the biomedical field, more specifically in cell cultures, alternative animals, regular animals, and clinical trials are also discussed. An overview of the challenges and future directions of the applications of NLS and its derivatives in tissue engineering for hard and soft tissue regeneration is also given.
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Affiliation(s)
- Rondinelli Donizetti Herculano
- Bioengineering & Biomaterials Group, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil; Autonomy Research Center for STEAHM (ARCS), California State University, Northridge, CA 91324, USA; Terasaki Institute for Biomedical Innovation (TIBI), 11507 W Olympic Blvd, Los Angeles, CA 90064, USA.
| | - Cassamo Ussemane Mussagy
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Chile
| | | | - Giovana Sant'Ana Pegorin Brasil
- Bioengineering & Biomaterials Group, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil; São Paulo State University (UNESP), Post-Graduate Program in Biotechnology, Institute of Chemistry, 14800-903 Araraquara, SP, Brazil
| | - Juliana Ferreira Floriano
- Bioengineering & Biomaterials Group, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil; School of Science, São Paulo State University (UNESP), 17033-360 Bauru, SP, Brazil
| | - Betina Sayeg Burd
- Bioengineering & Biomaterials Group, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil; São Paulo State University (UNESP), Post-Graduate Program in Biotechnology, Institute of Chemistry, 14800-903 Araraquara, SP, Brazil
| | - Yanjin Su
- Bioengineering & Biomaterials Group, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil
| | - Josana Carla da Silva Sasaki
- Bioengineering & Biomaterials Group, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil; São Paulo State University (UNESP), Post-Graduate Program in Biotechnology, Institute of Chemistry, 14800-903 Araraquara, SP, Brazil
| | - Paulo Augusto Chagas Marques
- Department of Chemical Engineering, Federal University of São Carlos, Rodovia Washington Luís, km 235, 13560-970 Sao Carlos, SP, Brazil
| | - Mateus Scontri
- Bioengineering & Biomaterials Group, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, Brazil
| | - Matheus Carlos Romeiro Miranda
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP), Rua Prof. Artur Riedel, 275, 09972-270 Diadema, SP, Brazil
| | - Ernando Silva Ferreira
- State University of Feira de Santana (UEFS), Department of Physics, s/n Transnordestina Highway, 44036-900 Feira de Santana, BA, Brazil
| | - Fernando Lucas Primo
- Bionanomaterials and Bioengineering Group, Department of Biotechnology and Bioprocesses Engineering, São Paulo State University (UNESP), Faculty of Pharmaceutical Sciences, Araraquara 14800-903, São Paulo, Brazil
| | - Mariza Aires Fernandes
- Bionanomaterials and Bioengineering Group, Department of Biotechnology and Bioprocesses Engineering, São Paulo State University (UNESP), Faculty of Pharmaceutical Sciences, Araraquara 14800-903, São Paulo, Brazil
| | - Siqi He
- Autonomy Research Center for STEAHM (ARCS), California State University, Northridge, CA 91324, USA; Terasaki Institute for Biomedical Innovation (TIBI), 11507 W Olympic Blvd, Los Angeles, CA 90064, USA
| | - Samuel Forster
- Autonomy Research Center for STEAHM (ARCS), California State University, Northridge, CA 91324, USA; Terasaki Institute for Biomedical Innovation (TIBI), 11507 W Olympic Blvd, Los Angeles, CA 90064, USA
| | - Changyu Ma
- Autonomy Research Center for STEAHM (ARCS), California State University, Northridge, CA 91324, USA; Terasaki Institute for Biomedical Innovation (TIBI), 11507 W Olympic Blvd, Los Angeles, CA 90064, USA
| | | | - Lindomar Soares Dos Santos
- Department of Physics, Faculty of Philosophy, Sciences and Languages at Ribeirão Preto, Universidade de São Paulo University (USP), 3900 Bandeirantes Avenue, 14.040-901 Ribeirão Preto, SP, Brazil
| | - Glaucio Ribeiro Silva
- Federal Institute of Education, Science, and Technology of Minas Gerais, s/n São Luiz Gonzaga Street, 35577-010 Formiga, Minas Gerais, Brazil
| | - Antônio Eduardo Miller Crotti
- Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, 3900 Bandeirantes Avenue, 14.040-901 Ribeirão Preto, SP, Brazil
| | - Natan Roberto de Barros
- Terasaki Institute for Biomedical Innovation (TIBI), 11507 W Olympic Blvd, Los Angeles, CA 90064, USA
| | - Bingbing Li
- Autonomy Research Center for STEAHM (ARCS), California State University, Northridge, CA 91324, USA; Terasaki Institute for Biomedical Innovation (TIBI), 11507 W Olympic Blvd, Los Angeles, CA 90064, USA
| | - Ricardo José de Mendonça
- Department of Biochemistry, Pharmacology and Physiology, Federal University of Triangulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil.
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Merchán-Gaitán JB, Mendes JHL, Nunes LEC, Buss DS, Rodrigues SP, Fernandes PMB. The Role of Plant Latex in Virus Biology. Viruses 2023; 16:47. [PMID: 38257746 PMCID: PMC10819414 DOI: 10.3390/v16010047] [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: 11/21/2023] [Revised: 12/21/2023] [Accepted: 12/25/2023] [Indexed: 01/24/2024] Open
Abstract
At least 20,000 plant species produce latex, a capacity that appears to have evolved independently on numerous occasions. With a few exceptions, latex is stored under pressure in specialized cells known as laticifers and is exuded upon injury, leading to the assumption that it has a role in securing the plant after mechanical injury. In addition, a defensive effect against insect herbivores and fungal infections has been well established. Latex also appears to have effects on viruses, and laticifers are a hostile environment for virus colonization. Only one example of successful colonization has been reported: papaya meleira virus (PMeV) and papaya meleira virus 2 (PMeV2) in Carica papaya. In this review, a summary of studies that support both the pro- and anti-viral effects of plant latex compounds is provided. The latex components represent a promising natural source for the discovery of new pro- and anti-viral molecules in the fields of agriculture and medicine.
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Affiliation(s)
| | - João H. L. Mendes
- Multidisciplinary Core for Research in Biology, Campus Duque de Caxias, Federal University of Rio de Janeiro, Duque de Caxias 25240-005, RJ, Brazil; (J.H.L.M.); (L.E.C.N.)
| | - Lucas E. C. Nunes
- Multidisciplinary Core for Research in Biology, Campus Duque de Caxias, Federal University of Rio de Janeiro, Duque de Caxias 25240-005, RJ, Brazil; (J.H.L.M.); (L.E.C.N.)
| | - David S. Buss
- School of Life Sciences, Keele University, Newcastle ST5 5BG, UK;
| | - Silas P. Rodrigues
- Multidisciplinary Core for Research in Biology, Campus Duque de Caxias, Federal University of Rio de Janeiro, Duque de Caxias 25240-005, RJ, Brazil; (J.H.L.M.); (L.E.C.N.)
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7
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Freitas CDT, Souza DP, Grangeiro TB, Sousa JS, Lima IVM, Souza PFN, Lima CS, Gomes ADS, Monteiro-Moreira ACO, Aguiar TKB, Ramos MV. Proteomic analysis of Cryptostegia grandiflora latex, purification, characterization, and biological activity of two osmotin isoforms. Int J Biol Macromol 2023; 252:126529. [PMID: 37633557 DOI: 10.1016/j.ijbiomac.2023.126529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/17/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
Although latex fluids are found in >20,000 plant species, the biochemical composition and biological function of their proteins are still poorly explored. Thus, this work aimed to conduct a proteomic analysis of Cryptostegia grandiflora latex (CgLP) for subsequent purification and characterization of an antifungal protein. After 2D-SDS-PAGE and mass spectrometry, 27 proteins were identified in CgLP, including a polygalacturonase inhibitor, cysteine peptidases, pathogenesis-related proteins (PR-4), and osmotins. Then, two osmotin isoforms (CgOsm) were purified, and a unique N-terminal sequence was determined (1ATFDIRSNCPYTVWAAAVPGGGRRLDRGQTWTINVAPGTA40). The PCR products revealed a cDNA sequence of 609 nucleotides for CgOsm, which encoded a polypeptide with 203 amino acid residues. The structure of CgOsm has features of typical osmotin or thaumatin-like proteins (TLPs), such as 16 conserved Cys residues, REDDD and FF motifs, an acidic cleft, and three main domains. Atomic force microscopy (AFM) and bioinformatics suggested that CgOsm is associated with three chain units. This result was interesting since the literature describes osmotins and TLPs as monomers. AFM also showed that Fusarium falciforme spores treated with CgOsm were drastically damaged. Therefore, it is speculated that CgOsm forms pores in the membrane of these cells, causing the leakage of cytoplasmic content.
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Affiliation(s)
- Cleverson D T Freitas
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Bloco 907, Fortaleza, Ceará CEP 60451-970, Brazil.
| | - Diego P Souza
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Bloco 907, Fortaleza, Ceará CEP 60451-970, Brazil
| | - Thalles B Grangeiro
- Departamento de Biologia, Universidade Federal do Ceará, Campus do Pici, Bloco 906, Fortaleza, Ceará, Brazil
| | - Jeanlex S Sousa
- Departamento de Física, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Isis V M Lima
- Departamento de Física, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Pedro Filho N Souza
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Bloco 907, Fortaleza, Ceará CEP 60451-970, Brazil
| | - Cristiano S Lima
- Departamento de Fitotecnia, Universidade Federal do Ceará, , Campus do Pici, Bloco 805, Fortaleza, Ceará, Brazil
| | - Alexandre D'Emery S Gomes
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Bloco 907, Fortaleza, Ceará CEP 60451-970, Brazil
| | - Ana C O Monteiro-Moreira
- Centro de Biologia Experimental (NUBEX), Universidade de Fortaleza (UNIFOR), Fortaleza, Ceará, Brazil
| | - Tawanny K B Aguiar
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Bloco 907, Fortaleza, Ceará CEP 60451-970, Brazil
| | - Márcio V Ramos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Bloco 907, Fortaleza, Ceará CEP 60451-970, Brazil.
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An T, Cao D, Zhang Y, Han X, Yu Z, Liu Z. Norsesquiterpenes from the Latex of Euphorbia dentata and Their Chemical Defense Mechanisms against Helicoverpa armigera. Molecules 2023; 28:7681. [PMID: 38067412 PMCID: PMC10707868 DOI: 10.3390/molecules28237681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/11/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023] Open
Abstract
Euphorbia dentata (Euphorbiaceae), an invasive weed, is rarely eaten by herbivorous insects and could secrete a large amount of white latex, causing a serious threat to local natural vegetation, agricultural production and human health. In order to prevent this plant from causing more negative effects on humans, it is necessary to understand and utilize the chemical relationships between the latex of E. dentata and herbivorous insects. In this study, three new norsesquiterpenes (1-3), together with seven known analogues (4-10), were isolated and identified from the latex of E. dentata. All norsesquiterpenes (1-10) showed antifeedant and growth-inhibitory effects on H. armigera with varying levels, especially compounds 1 and 2. In addition, the action mechanisms of active compounds (1-3) were revealed by detoxifying enzyme (AchE, CarE, GST and MFO) activities and corresponding molecular docking analyses. Our findings provide a new idea for the development and utilization of the latex of E. dentata, as well as a potential application of norsesquiterpenes in botanical insecticides.
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Affiliation(s)
- Tong An
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China;
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang 110866, China; (D.C.); (Y.Z.); (X.H.)
| | - Dongxu Cao
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang 110866, China; (D.C.); (Y.Z.); (X.H.)
| | - Yangyang Zhang
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang 110866, China; (D.C.); (Y.Z.); (X.H.)
| | - Xiamei Han
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang 110866, China; (D.C.); (Y.Z.); (X.H.)
| | - Zhiguo Yu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China;
| | - Zhixiang Liu
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang 110866, China; (D.C.); (Y.Z.); (X.H.)
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9
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Liang C, Yan Y, Tan Y, Yang X, Cao J, Tang C, Liu K. Identification of miRNAs and their targets in two Taraxacum species with contrasting rubber-producing ability. FRONTIERS IN PLANT SCIENCE 2023; 14:1287318. [PMID: 38023827 PMCID: PMC10663287 DOI: 10.3389/fpls.2023.1287318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023]
Abstract
MicroRNAs (miRNAs) are widely involved in various aspects of plant growth and development. However, how miRNAs and their targets regulate natural rubber metabolism remains unclear in the rubber-producing dandelions, which are being developed as alternative commercial sources of natural rubber. Here, we combined small RNA sequencing, degradome sequencing, target gene prediction, and mRNA sequencing to identify miRNAs and their targets in two dandelion species, the high rubber-yielding Taraxacum kok-saghyz (Tk) and the low rubber-yielding T. spadiceum (Ts). A total of 142 miRNAs, including 108 known and 34 novel ones, were discovered, with 53 identified as differentially expressed (DE) between the latex of Tk and Ts. Degradome sequencing identified 145 targets corresponding to 74 miRNAs. TAPIR and psRNATarget, respectively, predicted 165 and 164 non-redundant targets for the 53 aforementioned DE miRNAs. Gene ontology (GO) enrichment analysis indicated the DE miRNAs and their targets might affect natural rubber production via regulating macromolecular biosynthesis and metabolism in latex. Four critical types of regulatory modules, including miR172-AP2/ERF, miR164-NAC, miR160-ARF, and miRN19-protein kinase, were identified and their interaction networks were constructed, indicating a potential involvement in natural rubber production. The findings and the large miRNA dataset presented here are beneficial to further deciphering the roles of miRNAs in the biosynthesis of natural rubber and medicinal metabolites in dandelion.
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Affiliation(s)
- Cuili Liang
- National Key Laboratory for Biological Breeding of Tropical Crops, Hainan University, Haikou, China
- College of Tropical Crops, Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Hainan University, Haikou, China
- Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PR China, Hainan University, Haikou, China
| | - Yitong Yan
- National Key Laboratory for Biological Breeding of Tropical Crops, Hainan University, Haikou, China
- College of Tropical Crops, Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Hainan University, Haikou, China
- Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PR China, Hainan University, Haikou, China
| | - Yingchao Tan
- National Key Laboratory for Biological Breeding of Tropical Crops, Hainan University, Haikou, China
- College of Tropical Crops, Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Hainan University, Haikou, China
- Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PR China, Hainan University, Haikou, China
| | - Xue Yang
- National Key Laboratory for Biological Breeding of Tropical Crops, Hainan University, Haikou, China
- College of Tropical Crops, Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Hainan University, Haikou, China
- Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PR China, Hainan University, Haikou, China
| | - Jie Cao
- National Key Laboratory for Biological Breeding of Tropical Crops, Hainan University, Haikou, China
- College of Tropical Crops, Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Hainan University, Haikou, China
- Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PR China, Hainan University, Haikou, China
| | - Chaorong Tang
- National Key Laboratory for Biological Breeding of Tropical Crops, Hainan University, Haikou, China
- College of Tropical Crops, Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Hainan University, Haikou, China
- Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PR China, Hainan University, Haikou, China
- Yunnan Institute of Tropical Crops, Xishuangbanna, China
| | - Kaiye Liu
- National Key Laboratory for Biological Breeding of Tropical Crops, Hainan University, Haikou, China
- College of Tropical Crops, Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Hainan University, Haikou, China
- Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PR China, Hainan University, Haikou, China
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10
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Souza TF, Ramos MV, Pierdoná TM, Rabelo LM, Vasconcelos MS, Carmo LD, Rangel GF, Paiva YT, Sousa ET, Figueiredo IS, Alencar NM. Wound tissue remodeling by latex exudate of Himatanthus drasticus: A plant species used in Brazilian folk medicine. Heliyon 2023; 9:e21843. [PMID: 38027902 PMCID: PMC10660522 DOI: 10.1016/j.heliyon.2023.e21843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
This work investigated the healing properties of proteins extracted of latex (HdLP) on excisional wounds. Cell toxicity of HdLP was investigated carried out in murine fibroblasts after incubation with HdLP (12.5-100 μg/ml). The dermal irritability test was performed to evaluate dermal reactions. The wounds were performed and treated with vehicle or HdLP (0.5 %, 1.0 %, and 2.0 %). The macroscopic parameters, histological analysis and measurement of inflammatory markers and mediators were evaluated. HdLP did not exhibit cytotoxicity and did not induce skin irritation. HdLP stimulated the release of IL-1β at the beginning of the inflammatory phase. This effect probably favored the earlier release of IL-10 by macrophages, during the proliferative phase. The shortening and completeness of healing were characterized by fibroblast proliferation and the presence of newly synthesized collagen fibers. This was accompanied by well-organized re-epithelialization. The involvement of latex proteins in this activity is reported for the first time.
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Affiliation(s)
- Tamiris F.G. Souza
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Márcio V. Ramos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Taiana M. Pierdoná
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
- Faculty of Kinesiology and Recreation Management, Children's Hospital Research Institute of Manitoba (CHRIM), University of Manitoba, Winnipeg, Manitoba, Canada
| | - Liviane M.A. Rabelo
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Mirele S. Vasconcelos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
- Instituto Federal de Educação Ciência e Tecnologia do Ceara (IFCE), Campus Baturité, Ceará, Brazil
| | - Luana D. Carmo
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Gisele F.P. Rangel
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Yuri T.C.N. Paiva
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Emilia T. Sousa
- Departamento de Patologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | | | - Nylane M.N. Alencar
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
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11
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Judkevich MD, Luaces PA, Gonzalez AM. Flower structure, anatomy, and sexuality of Chrysophyllum gonocarpum (Sapotaceae). PROTOPLASMA 2023; 260:1271-1285. [PMID: 36890288 DOI: 10.1007/s00709-023-01848-4] [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: 10/11/2022] [Accepted: 02/18/2023] [Indexed: 06/18/2023]
Abstract
The Sapotaceae are a significant component of the humid forests of the Neotropics and have many species of economic interest. Chrysophyllum gonocarpum is one of them and its edible fruits have currently acquired a high commercial value. Since there are no studies that cover its floral anatomy and elucidate its sexual system, the objective of the present study is to describe these aspects based on field observations and a detailed anatomical analysis of their flowers. Conventional techniques of plant anatomy are implemented. The results indicate that the species presents cryptic dioecy, showing specimens with morphologically and functionally pistillate flowers (with reduced staminodes), and trees with morphologically hermaphrodite and functionally staminate flowers. In addition, data on floral nectaries and laticiferous are provided.
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Affiliation(s)
- Marina D Judkevich
- Instituto de Botánica del Nordeste, Consejo Nacional de Investigaciones Científicas Y Técnicas, Universidad Nacional del Nordeste, Sargento Cabral 2131, CC 209, 3400, Corrientes, Argentina.
| | - Paula Alayón Luaces
- Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Sargento Cabral 2131, CC 209, 3400, Corrientes, Argentina
| | - Ana M Gonzalez
- Instituto de Botánica del Nordeste, Consejo Nacional de Investigaciones Científicas Y Técnicas, Universidad Nacional del Nordeste, Sargento Cabral 2131, CC 209, 3400, Corrientes, Argentina
- Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Sargento Cabral 2131, CC 209, 3400, Corrientes, Argentina
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12
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Salomé BMC, Santos AF, Ribeiro LM, de Azevedo IFP, Mercadante-Simões MO. Anastomosing laticifer in the primary and secondary structures of Calotropis procera (Aiton) W.T.Aiton (Apocynaceae) stems. PROTOPLASMA 2023; 260:497-508. [PMID: 35804192 DOI: 10.1007/s00709-022-01792-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
An in-depth understanding of the development and distribution of laticifer (latex secretory structure) will be important for the production of both rubber and medicines and will support studies on plant adaptations to their environments. We characterize here and describe the ontogenesis of the laticifer sytem in Calotropis procera (Apocynaceae), an invasive subshrub species in arid landscapes. Anatomical and histochemical evaluations of the primary and secondary structures of the stem were carried out on a monthly basis during a full year, with ultrastructural evaluations of laticifer on the stem apex during the rainy season. In the primary structure, laticifer differentiate early from procambium and ground meristem cells of the cortex and medulla and become concentrated adjacent to the external and internal phloem of the bicollateral bundles. In the secondary structure, laticifer differentiates from fusiform derivative cells of the phloem close to the sieve-tube elements. The laticifer is of the articulated, anastomosing, branched type, and it originates from precursor cells that loose the transversal and longitudinal walls by dissolution. Latex is a mixture of terpenes, alkaloids, flavonoids, mucilage, and proteins. The apical meristem and vascular cambium where the laticifer system begins its development are active throughout the year, including during the dry season. The vascular cambium produces phloem with laticifer precursor cells during the rainy season, with high temperatures and long days. The ability of C. procera to grow under water deficit conditions and produce laticifer throughout the year contribute to its wide distribution in arid environments.
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Affiliation(s)
| | - Ariadna Freitas Santos
- Departamento de Biologia Geral, Universidade Estadual de Montes Claros, Montes Claros, 39401-089, Brasil
| | - Leonardo Monteiro Ribeiro
- Departamento de Biologia Geral, Universidade Estadual de Montes Claros, Montes Claros, 39401-089, Brasil
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13
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Bezerra EA, Carvalho CP, Costa Filho RN, Silva AF, Alam M, Sales MV, Dias NL, Gonçalves JF, Freitas CD, Ramos MV. Static magnetic field promotes faster germination and increases germination rate of Calotropis procera seeds stimulating cellular metabolism. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2023. [DOI: 10.1016/j.bcab.2023.102650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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14
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Demarco D. Histochemical Analysis of Plant Secretory Structures. Methods Mol Biol 2023; 2566:291-310. [PMID: 36152261 DOI: 10.1007/978-1-0716-2675-7_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Histochemical analysis is essential for the study of plant secretory structures whose classification is based, at least partially, on the composition of their secretion. As each gland may produce one or more types of substances, a correct analysis of its secretion should be done using various histochemical tests to detect metabolites of different chemical classes. Here I describe some of the most used methods to detect carbohydrates, proteins, lipids, phenolic compounds, and alkaloids in the secretory structures.
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Affiliation(s)
- Diego Demarco
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.
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15
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Leandro CS, Azevedo FR, Cândido EL, Alencar CH. Phytochemical prospection and larvicidal bioactivity of the janaguba (Himatanthus drasticus) Mart. Plumel (Apocynaceae) latex against Aedes aegypti L. (Diptera: Culicidae). BRAZ J BIOL 2023; 83:e270143. [PMID: 37075427 DOI: 10.1590/1519-6984.270143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/23/2023] [Indexed: 04/21/2023] Open
Abstract
The aim of this study was to carry out phytochemical prospecting and evaluate the larvicidal activity of Himatanthus drasticus latex extracts against Aedes aegypti. The extracts were obtained by maceration from 5 g of latex powder concentrated separately in 100 mL of methanol, ethyl acetate, and hexane solvents. The concentrations of 100, 200, 300, 400, and 500 ppm of each extract were tested in triplicate with a solution of pyriproxyfen as the positive control and distilled water and dimethylsulfoxide as the negative control. The phytochemical prospection of the methanolic extract showed the presence of phenolic compounds, such as anthocyanins, anthocyanidins, catechins, chalcones, aurones, leucoanthocyanidins, and condensed tannins. The insecticidal bioactivity was most significant for the methanolic extract. The methanolic extract lethal concentrations (LC) of 50 and 90% were 190.76 and 464.74 ppm, respectively. After 48 hours of exposure, the extracts using methanol, ethyl acetate, and hexane at their highest concentrations (500 ppm) caused larval mortality of 100, 73.33, and 66.67%, respectively. These extracts also promoted changes in the external morphology of the larvae, such as damage to the anal papillae, darkening of the body, and reduction in the number of bristles. The methanolic extract showed greater expressivity for morphological changes. The latex of H. drasticus has larvicidal activity against third-stade larvae of A. aegypti and it is more significant when obtained through maceration in methanol. The methanolic extract of H. drasticus latex contains phenolic compounds with insecticidal activity against A. aegypti larvae.
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Affiliation(s)
- C S Leandro
- Universidade Federal do Cariri, Centro de Ciências Agrárias e da Biodiversidade, Crato, CE, Brasil
| | - F R Azevedo
- Universidade Federal do Cariri, Centro de Ciências Agrárias e da Biodiversidade, Crato, CE, Brasil
| | - E L Cândido
- Universidade Federal do Cariri, Centro de Ciências Agrárias e da Biodiversidade, Crato, CE, Brasil
| | - C H Alencar
- Universidade Federal do Ceará, Faculdade de Medicina, Programa de Pós-Graduação em Saúde Pública, Fortaleza, CE, Brasil
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16
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Marques HKO, Figueiredo MGF, de Souza Pio WS, Ribeiro LM, de Azevedo IFP, Duarte LP, de Sousa GF, de Aguilar MG, Mercadante-Simões MO. Laticifer ontogenesis and the chemical constituents of Marsdenia zehntneri (Apocynaceae) latex in a semiarid environment. PLANTA 2022; 257:19. [PMID: 36538159 DOI: 10.1007/s00425-022-04050-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Anastomosed laticifers with intrusive growth produce latex containing methyl comate and betulin with economic and ecological value in arid environments. Climatic factors influence laticifer development in the apical meristem and vascular cambium. Latex is a complex emulsion with high medicinal as well as ecological value related to plant survival. Marsdenia zehntneri is a shrubby plant that grows on limestone outcrops in the semiarid regions of Brazil. We sought to characterize the ontogenesis of the laticifers of this species and to relate that process to climatic seasonality and phenology through anatomical, ultrastructural, and micro-morphometric evaluations of the apical meristem and vascular cambium. The histochemistry of the secretory structure was investigated and the chemical composition of the latex was analyzed. Phenological assessments were performed by monitoring phenological events for 1 year. The laticifers network of M. zehntneri permeates the entire primary and secondary body of the plant, providing a wide distribution system of defensive compounds. Its laticifers, of a distinct mixed type (anastomosed, with intrusive growth), are numerous and voluminous in the apical meristem but scarce and minute in the secondary phloem. Latex secretion involves the participation of oleoplasts, polysomes, and dictyosomes. Methyl 2,3-dihydroxy-ursan-23-oate, methyl 3-hydroxy-ursan-23-oate, and betulin are encountered in high proportions in the latex and have ecological and medicinal functions. The development of primary laticifers is related to the resumption of apical meristem activity with increasing day length at the end of the austral winter. The development of secondary laticifers is related to high summer temperatures and rainfall that favor vascular cambium activity. The wide distribution of laticifers, their seasonal pattern of secretion, and their latex composition contribute to the adaptation of M. zehntneri to its natural environment.
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Affiliation(s)
- Hellen Karla Oliveira Marques
- General Biology Department, Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, CEP 39401-089, Brazil
| | - Maria Gabriela Ferreira Figueiredo
- General Biology Department, Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, CEP 39401-089, Brazil
| | - Willian Samuel de Souza Pio
- General Biology Department, Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, CEP 39401-089, Brazil
| | - Leonardo Monteiro Ribeiro
- General Biology Department, Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, CEP 39401-089, Brazil
| | - Islaine Franciely Pinheiro de Azevedo
- General Biology Department, Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, CEP 39401-089, Brazil
| | - Lucienir Pains Duarte
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, CEP 31270-901, Brazil
| | - Grasiely Faria de Sousa
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, CEP 31270-901, Brazil
| | - Mariana Guerra de Aguilar
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, CEP 31270-901, Brazil
| | - Maria Olívia Mercadante-Simões
- General Biology Department, Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, CEP 39401-089, Brazil.
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17
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Fig latex inhibits the growth of pathogenic bacteria invading human diabetic wounds and accelerates wound closure in diabetic mice. Sci Rep 2022; 12:21852. [PMID: 36528674 PMCID: PMC9759588 DOI: 10.1038/s41598-022-26338-0] [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: 07/22/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Impaired wound healing is one of the most critical complications associated with diabetes mellitus. Infections and foot ulcers are major causes of morbidity for diabetic patients. The current treatment of diabetic foot ulcers, commonly used antibiotics, is associated with the development of bacterial resistance. Hence, novel and more effective natural therapeutic antibacterial agents are urgently needed and should be developed against the pathogenic bacteria inhabiting diabetic wounds. Therefore, the current study aimed to investigate the impact of fig latex on pathogenic bacteria and its ability to promote the healing process of diabetic wounds. The pathogenic bacteria were isolated from patients with diabetic foot ulcers admitted to Assiut University Hospital. Fig latex was collected from trees in the Assiut region, and its chemical composition was analyzed using GC‒MS. The antibacterial efficacy of fig latex was assessed on the isolated bacteria. An in vivo study to investigate the effect of fig latex on diabetic wound healing was performed using three mouse groups: nondiabetic control mice, diabetic mice and diabetic mice treated with fig latex. The influence of fig latex on the expression levels of β-defensin-1, PECAM-1, CCL2 and ZO-1 and collagen formation was investigated. The GC‒MS analysis demonstrated the presence of triterpenoids, comprising more than 90% of the total latex content. Furthermore, using a streptozotocin-induced diabetic mouse model, topical treatment of diabetic wound tissues with fig latex was shown to accelerate and improve wound closure by increasing the expression levels of β-defensin-1, collagen, and PECAM-1 compared to untreated diabetic wounds. Additionally, fig latex decreased the expression levels of ZO-1 and CCL2.
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18
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Zhou H, Hua J, Zhang J, Luo S. Negative Interactions Balance Growth and Defense in Plants Confronted with Herbivores or Pathogens. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:12723-12732. [PMID: 36165611 DOI: 10.1021/acs.jafc.2c04218] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Plants have evolved a series of defensive mechanisms against pathogens and herbivores, but the defense response always leads to decreases in growth or reproduction, which has serious implications for agricultural production. Growth and defense are negatively regulated not only through metabolic consumption but also through the antagonism of different phytohormones, such as jasmonic acid (JA) and salicylic acid (SA). Meanwhile, plants can limit the expression of defensive metabolites to reduce the costs of defense by producing constitutive defenses such as glandular trichomes or latex and accumulating specific metabolites, determining the activation of plant defense or the maintenance of plant growth. Interestingly, plant defense pathways might be prepared in advance which may be transmitted to descendants. Plants can also use external organisms to protect themselves, thus minimizing the costs of defense. In addition, plant relatives exhibit cooperation to deal with pathogens and herbivores, which is also a way to regulate growth and defense.
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Affiliation(s)
- Huiwen Zhou
- Key Laboratory of Biological Invasions and Global Changes, College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - Juan Hua
- Key Laboratory of Biological Invasions and Global Changes, College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - Jiaming Zhang
- Key Laboratory of Biological Invasions and Global Changes, College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - Shihong Luo
- Key Laboratory of Biological Invasions and Global Changes, College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
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19
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Medina MC, Sousa-Baena MS, Van Sluys MA, Demarco D. Laticifer growth pattern is guided by cytoskeleton organization. FRONTIERS IN PLANT SCIENCE 2022; 13:971235. [PMID: 36262651 PMCID: PMC9574190 DOI: 10.3389/fpls.2022.971235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/25/2022] [Indexed: 06/16/2023]
Abstract
Laticifers are secretory structures that produce latex, forming a specialized defense system against herbivory. Studies using anatomical approaches to investigate laticifer growth patterns have described their origin; however, their mode of growth, i.e., whether growth is intrusive or diffuse, remains unclear. Studies investigating how cytoskeleton filaments may influence laticifer shape establishment and growth patterns are lacking. In this study, we combined microtubule immunostaining and developmental anatomy to investigate the growth patterns in different types of laticifers. Standard anatomical methods were used to study laticifer development. Microtubules were labelled through immunolocalization of α-tubulin in three types of laticifers from three different plant species: nonanastomosing (Urvillea ulmacea), anastomosing unbranched with partial degradation of terminal cell walls (Ipomoea nil), and anastomosing branched laticifers with early and complete degradation of terminal cell walls (Asclepias curassavica). In both nonanastomosing and anastomosing laticifers, as well as in differentiating meristematic cells, parenchyma cells and idioblasts, microtubules were perpendicularly aligned to the cell growth axis. The analyses of laticifer microtubule orientation revealed an arrangement that corresponds to those cells that grow diffusely within the plant body. Nonanastomosing and anastomosing laticifers, branched or not, have a pattern which indicates diffuse growth. This innovative study on secretory structures represents a major advance in the knowledge of laticifers and their growth mode.
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Affiliation(s)
| | | | | | - Diego Demarco
- *Correspondence: Maria Camila Medina, ; Diego Demarco,
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20
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The Activity of Chelidonium majus L. Latex and Its Components on HPV Reveal Insights into the Antiviral Molecular Mechanism. Int J Mol Sci 2022; 23:ijms23169241. [PMID: 36012505 PMCID: PMC9409487 DOI: 10.3390/ijms23169241] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022] Open
Abstract
Yellow-orange latex of Chelidonium majus L. has been used in folk medicine as a therapeutic agent against warts and other visible symptoms of human papillomavirus (HPV) infections for centuries. The observed antiviral and antitumor properties of C. majus latex are often attributed to alkaloids contained therein, but recent studies indicate that latex proteins may also play an important role in its pharmacological activities. Therefore, the aim of the study was to investigate the effect of the crude C. majus latex and its protein and alkaloid-rich fractions on different stages of the HPV replication cycle. The results showed that the latex components, such as alkaloids and proteins, decrease HPV infectivity and inhibit the expression of viral oncogenes (E6, E7) on mRNA and protein levels. However, the crude latex and its fractions do not affect the stability of structural proteins in HPV pseudovirions and they do not inhibit the virus from attaching to the cell surface. In addition, the protein fraction causes increased TNFα secretion, which may indicate the induction of an inflammatory response. These findings indicate that the antiviral properties of C. majus latex arise both from alkaloids and proteins contained therein, acting on different stages of the viral replication cycle.
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21
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Sirirungruang S, Markel K, Shih PM. Plant-based engineering for production of high-valued natural products. Nat Prod Rep 2022; 39:1492-1509. [PMID: 35674317 DOI: 10.1039/d2np00017b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: up to March 2022Plants are a unique source of complex specialized metabolites, many of which play significant roles in human society. In many cases, however, the availability of these metabolites from naturally occurring sources fails to meet current demands. Thus, there is much interest in expanding the production capacity of target plant molecules. Traditionally, plant breeding, chemical synthesis, and microbial fermentation are considered the primary routes towards large scale production of natural products. Here, we explore the advances, challenges, and future of plant engineering as a complementary path. Although plants are an integral part of our food and agricultural systems and sustain an extensive array of chemical constituents, their complex genetics and physiology have prevented the optimal exploitation of plants as a production chassis. We highlight emerging engineering tools and scientific advances developed in recent years that have improved the prospects of using plants as a sustainable and scalable production platform. We also discuss technological limitations and overall economic outlook of plant-based production of natural products.
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Affiliation(s)
- Sasilada Sirirungruang
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA. .,Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.,Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Kasey Markel
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA. .,Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Patrick M Shih
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA. .,Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.,Innovative Genomics Institute, University of California, Berkeley, CA, USA
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22
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Romani F, Flores JR, Tolopka JI, Suárez G, He X, Moreno JE. Liverwort oil bodies: diversity, biochemistry, and molecular cell biology of the earliest secretory structure of land plants. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:4427-4439. [PMID: 35394035 DOI: 10.1093/jxb/erac134] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 04/01/2022] [Indexed: 05/27/2023]
Abstract
Liverworts are known for their large chemical diversity. Much of this diversity is synthesized and enclosed within oil bodies (OBs), a synapomorphy of the lineage. OBs contain the enzymes to biosynthesize and store large quantities of sesquiterpenoids and other compounds while limiting their cytotoxicity. Recent important biochemical and molecular discoveries related to OB formation, diversity, and biochemistry allow comparison with other secretory structures of land plants from an evo-devo perspective. This review addresses and discusses the most recent advances in OB origin, development, and function towards understanding the importance of these organelles in liverwort physiology and adaptation to changing environments. Our mapping of OB types and chemical compounds to the current liverwort phylogeny suggests that OBs were present in the most recent common ancestor of liverworts, supporting that OBs evolved as the first secretory structures in land plants. Yet, we require better sampling to define the macroevolutionary pattern governing the ancestral type of OB. We conclude that current efforts to find molecular mechanisms responsible for the morphological and chemical diversity of secretory structures will help understand the evolution of each major group of land plants, and open new avenues in biochemical research on bioactive compounds in bryophytes and vascular plants.
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Affiliation(s)
- Facundo Romani
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
| | - Jorge R Flores
- Botany Unit, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
| | - Juan Ignacio Tolopka
- Instituto de Agrobiotecnología del Litoral, Universidad Nacional del Litoral - CONICET, Facultad de Bioquímica y Ciencias Biológicas, Centro Científico Tecnológico CONICET Santa Fe, Colectora Ruta Nacional No. 168 km. 0, Paraje El Pozo, Santa Fe 3000, Argentina
| | - Guillermo Suárez
- Unidad Ejecutora Lillo (CONICET - Fundación Miguel Lillo), Miguel Lillo 251, San Miguel de Tucumán, Tucumán, 4000, Argentina
- Facultad de Ciencias Naturales, Instituto Miguel Lillo, Universidad Nacional de Tucumán, Miguel Lillo 205, San Miguel de Tucumán, Tucumán, 4000, Argentina
| | - Xiaolan He
- Botany Unit, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
| | - Javier E Moreno
- Instituto de Agrobiotecnología del Litoral, Universidad Nacional del Litoral - CONICET, Facultad de Bioquímica y Ciencias Biológicas, Centro Científico Tecnológico CONICET Santa Fe, Colectora Ruta Nacional No. 168 km. 0, Paraje El Pozo, Santa Fe 3000, Argentina
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Junaidi, Nuringtyas TR, Clément-Vidal A, Flori A, Syafaah A, Oktavia F, Ismawanto S, Aji M, Subandiyah S, Montoro P. Analysis of reduced and oxidized antioxidants in Hevea brasiliensis latex reveals new insights into the regulation of antioxidants in response to harvesting stress and tapping panel dryness. Heliyon 2022; 8:e09840. [PMID: 35815130 PMCID: PMC9260451 DOI: 10.1016/j.heliyon.2022.e09840] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/22/2022] [Accepted: 06/22/2022] [Indexed: 11/30/2022] Open
Abstract
Latex diagnosis (LD) is applied to optimize the natural rubber production and prevent tapping panel dryness (TPD), a physiological syndrome affecting latex production in Hevea brasiliensis. The reduced thiol content (RSH) is one of the biochemical parameters associated with the risk of TPD. However, RSH is difficult to interpret because of the influence of the environment. In order to better understand the regulation of antioxidants and to better interpret RSH, a key parameter of LD, this study analysed in latex both oxidised and reduced forms of ascorbic acid (AsA) and glutathione, and their cofactors as well as other latex diagnosis parameters in response to harvesting stress (tapping and ethephon stimulation) and TPD occurrence. The content of antioxidants in latex had a high variability among five rubber clones. The concentration in AsA was about ten times higher than GSH in laticifer, GSH accounting for about 50% of RSH. For short-term harvesting stress, RSH increased with tapping frequency and ethephon stimulation. TPD is associated with high latex viscosity and bursting of lysosomal particles called lutoids, as well as for several rubber clones with lower RSH and GSH contents. These results suggest that a high level of RSH shows the capacity of laticifer metabolism to cope with harvesting stress, while a drop in RSH is the sign of long stress related to lower metabolic activity and TPD occurrence. RSH remains an essential physiological parameter to prevent TPD when associated with reference data under low and high harvesting stress. This study paves the way to understand the role of AsA and GSH, and carry out genetic studies of antioxidants.
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24
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Latex peptidases produce peptides capable of delaying fungal growth in bread. Food Chem 2022; 373:131410. [PMID: 34710691 DOI: 10.1016/j.foodchem.2021.131410] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 10/03/2021] [Accepted: 10/13/2021] [Indexed: 01/17/2023]
Abstract
Antimicrobial peptides (AMPs) have been reported to be promising alternatives to chemical preservatives. Thus, this study aimed to characterise AMPs generated from the hydrolysis of wheat gluten proteins using latex peptidases of Calotropis procera, Cryptostegia grandiflora, and Carica papaya. The three hydrolysates (obtained after 16 h at 37 °C, using a 1: 25 enzyme: substrate ratio) inhibited the growth of Aspergillus niger, A. chevalieri, Trichoderma reesei, Pythium oligandrum, Penicillium sp., and Lasiodiplodia sp. by 60-90%, and delayed fungal growth on bread by 3 days when used at 0.3 g/kg. Moreover, the specific volume and expansion factor of bread were not affected by the hydrolysates. Of 28 peptides identified, four were synthesised and exhibited activity against Penicillium sp. Fluorescence and scanning electron microscopy suggested that the peptides damaged the fungal plasma membrane. Bioinformatics analysis showed that no peptide was toxic and that the antigenic ones had cleavage sites for trypsin or pepsin.
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25
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Bruzinga WSDJS, Ribeiro LM, Nunes YRF, Pimenta LPS, Almeida MATD, Mendes MGA, Mercadante-Simões MO. Ontogenesis of Resin Ducts and Secretory Process in Protium spruceanum (Burseraceae) Stems. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2022; 28:1-12. [PMID: 35314015 DOI: 10.1017/s1431927622000459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The objective of this work was to characterize the ontogenesis of Protium spruceanum secretory ducts, to evaluate the effects of seasonality on that process, and to characterize the chemical nature of the resin. Morphometric, anatomical, micromorphometric, histochemical, and ultrastructural evaluations of shoot apexes and chemical analyses of the resin were performed. The ducts of schizolysigenous origin are distributed in the primary and secondary phloem. The subsecretory tissue is meristematic and can restore the secretory epithelium. Secretory epithelial cells have wall thickening resembling that of the Casparian strip that regulates secretion reflux. The main resin compounds are pentacyclic triterpenoids, α- and β-amyrins, and α- and β-amyrenones, which are reported here for the first time for this species. The presence of electron-dense and electron-opaque structures, in the secretory epithelial cells, are compatible with the triterpenes and mucilage identified in the resin. Rising temperatures, rainfall, and increasing day length induce the formation of ducts in the vascular cambium throughout Spring/Summer. The abundant production of resin rich in pentacyclic triterpenes indicates the potential use of the species for medicinal and cosmetic purposes. The understanding that secretory processes are concentrated during the Spring/Summer seasons will contribute to the definition of resin extraction management strategies.
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Affiliation(s)
| | - Leonardo Monteiro Ribeiro
- Departamento de Biologia Geral, Universidade Estadual de Montes Claros, Montes Claros, MG39401-089, Brazil
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26
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Applications of cell- and tissue-specific 'omics to improve plant productivity. Emerg Top Life Sci 2022; 6:163-173. [PMID: 35293572 PMCID: PMC9023014 DOI: 10.1042/etls20210286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 02/21/2022] [Accepted: 02/25/2022] [Indexed: 01/05/2023]
Abstract
The individual tissues and cell types of plants each have characteristic properties that contribute to the function of the plant as a whole. These are reflected by unique patterns of gene expression, protein and metabolite content, which enable cell-type-specific patterns of growth, development and physiology. Gene regulatory networks act within the cell types to govern the production and activity of these components. For the broader organism to grow and reproduce successfully, cell-type-specific activity must also function within the context of surrounding cell types, which is achieved by coordination of signalling pathways. We can investigate how gene regulatory networks are constructed and function using integrative ‘omics technologies. Historically such experiments in plant biological research have been performed at the bulk tissue level, to organ resolution at best. In this review, we describe recent advances in cell- and tissue-specific ‘omics technologies that allow investigation at much improved resolution. We discuss the advantages of these approaches for fundamental and translational plant biology, illustrated through the examples of specialised metabolism in medicinal plants and seed germination. We also discuss the challenges that must be overcome for such approaches to be adopted widely by the community.
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27
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Leme FM, Bento JPSP, Fabiano VS, González JDV, Pott VJ, Arruda RDCDO. New Aspects of Secretory Structures in Five Alismataceae Species: Laticifers or Ducts? PLANTS 2021; 10:plants10122694. [PMID: 34961164 PMCID: PMC8709293 DOI: 10.3390/plants10122694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/15/2021] [Accepted: 10/15/2021] [Indexed: 11/26/2022]
Abstract
The secretory structures of Alismataceae have been described as secretory ducts, laticifer ducts, laticifer canals or schizogenous ducts. However, these terms are not found in the specialized literature, and ontogenetic analyses for the exact classification of these structures are missing. Accordingly, more studies regarding the secretory structures of Alismataceae are necessary to establish homology in the family or in the order. Thus, the aim of this study was to describe the anatomy, ontogeny, distribution in the organs and exudate composition of the secretory structures present in five Alismataceae species in order to determine whether the family has laticifers or secretory ducts. Samples of leaves, flowers and floral apices were processed for anatomical and histochemical analyses by light microscopy. The analysis indicated the presence of anastomosing secretory ducts in all species, occurring in both leaves and flowers. The exudate contains lipids, alkaloids, proteins and polysaccharides, including mucilage. The secretory duct structure, distribution and exudate composition suggest a defense role against herbivory and in wound sealing. The presence of secretory ducts in all species analyzed indicates a probable synapomorphy for the family.
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Affiliation(s)
- Flávia Maria Leme
- Laboratório de Anatomia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil; (J.P.S.P.B.); (V.S.F.); (J.D.V.G.)
- Correspondence: (F.M.L.); (R.d.C.d.O.A.)
| | - João Pedro Silvério Pena Bento
- Laboratório de Anatomia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil; (J.P.S.P.B.); (V.S.F.); (J.D.V.G.)
- Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil
| | - Vitoria Silva Fabiano
- Laboratório de Anatomia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil; (J.P.S.P.B.); (V.S.F.); (J.D.V.G.)
- Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil
| | - Jean David Varilla González
- Laboratório de Anatomia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil; (J.P.S.P.B.); (V.S.F.); (J.D.V.G.)
- Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil
| | - Vali Joana Pott
- Herbário CGMS, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil;
| | - Rosani do Carmo de Oliveira Arruda
- Laboratório de Anatomia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil; (J.P.S.P.B.); (V.S.F.); (J.D.V.G.)
- Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande 79070-900, MS, Brazil
- Correspondence: (F.M.L.); (R.d.C.d.O.A.)
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28
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Johnson AR, Moghe GD, Frank MH. Growing a glue factory: Open questions in laticifer development. CURRENT OPINION IN PLANT BIOLOGY 2021; 64:102096. [PMID: 34461600 DOI: 10.1016/j.pbi.2021.102096] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/25/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
Latex-containing cells called laticifers are present in at least 41 flowering plant families and are thought to have convergently evolved at least 12 times. These cells are known to function in defense, but little is known about the molecular genetic mechanisms of their development. The expansion of laticifers into their distinctive tube shape can occur through two distinct mechanisms, cell fusion and intrusive growth. The mechanism and extent of intrusive laticifer growth are still being investigated. Hormonal regulation by jasmonic acid and ethylene is important for both laticifer differentiation and latex biosynthesis. Current evidence suggests that laticifers can be specified independently of latex production, but extensive latex production requires specified laticifers. Laticifers are an emerging system for studying the intersection of cell identity specification and specialized metabolism.
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Affiliation(s)
- Arielle R Johnson
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
| | - Gaurav D Moghe
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
| | - Margaret H Frank
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA.
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29
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Gracz-Bernaciak J, Mazur O, Nawrot R. Functional Studies of Plant Latex as a Rich Source of Bioactive Compounds: Focus on Proteins and Alkaloids. Int J Mol Sci 2021; 22:12427. [PMID: 34830309 PMCID: PMC8620047 DOI: 10.3390/ijms222212427] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 01/03/2023] Open
Abstract
Latex, a sticky emulsion produced by specialized cells called laticifers, is a crucial part of a plant's defense system against herbivory and pathogens. It consists of a broad spectrum of active compounds, which are beneficial not only for plants, but for human health as well, enough to mention the use of morphine or codeine from poppy latex. Here, we reviewed latex's general role in plant physiology and the significance of particular compounds (alkaloids and proteins) to its defense system with the example of Chelidonium majus L. from the poppy family. We further attempt to present latex chemicals used so far in medicine and then focus on functional studies of proteins and other compounds with potential pharmacological activities using modern techniques such as CRISPR/Cas9 gene editing. Despite the centuries-old tradition of using latex-bearing plants in therapies, there are still a lot of promising molecules waiting to be explored.
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Affiliation(s)
| | | | - Robert Nawrot
- Molecular Virology Research Unit, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (J.G.-B.); (O.M.)
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30
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Oliveira KAD, Araújo HN, Lima TID, Oliveira AG, Favero-Santos BC, Guimarães DSP, Freitas PAD, Neves RDJD, Vasconcelos RP, Almeida MGGD, Ramos MV, Silveira LR, Oliveira ACD. Phytomodulatory proteins isolated from Calotropis procera latex promote glycemic control by improving hepatic mitochondrial function in HepG2 cells. Saudi Pharm J 2021; 29:1061-1069. [PMID: 34588851 PMCID: PMC8463474 DOI: 10.1016/j.jsps.2021.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 07/04/2021] [Indexed: 12/03/2022] Open
Abstract
The medicinal uses of Calotropis procera are diverse, yet some of them are based on effects that still lack scientific support. Control of diabetes is one of them. Recently, latex proteins from C. procera latex (LP) have been shown to promote in vivo glycemic control by the inhibition of hepatic glucose production via AMP-activated protein kinase (AMPK). Glycemic control has been attributed to an isolated fraction of LP (CpPII), which is composed of cysteine peptidases (95%) and osmotin (5%) isoforms. Those proteins are extensively characterized in terms of chemistry, biochemistry and structural aspects. Furthermore, we evaluated some aspects of the mitochondrial function and cellular mechanisms involved in CpPII activity. The effect of CpPII on glycemic control was evaluated in fasting mice by glycemic curve and glucose and pyruvate tolerance tests. HepG2 cells was treated with CpPII, and cell viability, oxygen consumption, PPAR activity, production of lactate and reactive oxygen species, mitochondrial density and protein and gene expression were analyzed. CpPII reduced fasting glycemia, improved glucose tolerance and inhibited hepatic glucose production in control animals. Additionally, CpPII increased the consumption of ATP-linked oxygen and mitochondrial uncoupling, reduced lactate concentration, increased protein expression of mitochondrial complexes I, III and V, and activity of peroxisome-proliferator-responsive elements (PPRE), reduced the presence of reactive oxygen species (ROS) and increased mitochondrial density in HepG2 cells by activation of AMPK/PPAR. Our findings strongly support the medicinal use of the plant and suggest that CpPII is a potential therapy for prevention and/or treatment of type-2 diabetes. A common epitope sequence shared among the proteases and osmotin is possibly the responsible for the beneficial effects of CpPII.
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Key Words
- AMPK, AMP-activated kinase protein
- AUC, Area under the curve
- Bioactive proteins
- CTL, Control
- Calotropis procera
- CpPII, Major peptidase fraction treated with iodoacetamide
- DHE, Dihydroethidium
- DMEM, Dulbecco’s minimal essential medium
- DMSO, Dimethyl sulfoxide
- FCCP, Oligomycin carbonyl cyanide 4 (trifluoromethoxy) phenylhydrazine
- Folk medicine
- Glycemia
- HGP, Hepatic glucose production
- LP, Soluble latex proteins from Calotropis procera
- Latex
- MTT, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
- OCR, Oxygen consumption rate
- OXPHOS, Oxidative phosphorylation
- PPAR, Peroxisome proliferator-activated receptor
- PPRE, PPAR response element
- ROS, Reactive oxygen species
- TBS-T, Tris buffered saline solution containing 0.1% Tween 20
- UCP2, Mitochondrial uncoupling protein 2
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Ariclecio Cunha de Oliveira
- Superior Institute of Biomedical Sciences, State University of Ceara, Fortaleza, Brazil
- Corresponding author.at: Superior Institute of Biomedical Sciences, State University of Ceara, Fortaleza, Ceara, Brazil.
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31
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Adaptive mechanisms of plant specialized metabolism connecting chemistry to function. Nat Chem Biol 2021; 17:1037-1045. [PMID: 34552220 DOI: 10.1038/s41589-021-00822-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 05/21/2021] [Indexed: 12/29/2022]
Abstract
As sessile organisms, plants evolved elaborate metabolic systems that produce a plethora of specialized metabolites as a means to survive challenging terrestrial environments. Decades of research have revealed the genetic and biochemical basis for a multitude of plant specialized metabolic pathways. Nevertheless, knowledge is still limited concerning the selective advantages provided by individual and collective specialized metabolites to the reproductive success of diverse host plants. Here we review the biological functions conferred by various classes of plant specialized metabolites in the context of the interaction of plants with their surrounding environment. To achieve optimal multifunctionality of diverse specialized metabolic processes, plants use various adaptive mechanisms at subcellular, cellular, tissue, organ and interspecies levels. Understanding these mechanisms and the evolutionary trajectories underlying their occurrence in nature will ultimately enable efficient bioengineering of desirable metabolic traits in chassis organisms.
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32
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Borges RM. Interactions Between Figs and Gall-Inducing Fig Wasps: Adaptations, Constraints, and Unanswered Questions. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.685542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The ancient interaction between figs (Ficus, Moraceae) and their pollinating fig wasps is an unusual example of a mutualism between plants and gall-inducing insects. This review intends to offer fresh perspectives into the relationship between figs and the diversity of gall-inducing sycophiles which inhabit their enclosed globular inflorescences that function as microcosms. Besides gall-inducing pollinators, fig inflorescences are also inhabited by other gall-inducing wasps. This review evaluates the state of current knowledge on gall-induction by fig wasps and exposes the many lacunae in this area. This review makes connections between fig and gall-inducing wasp traits, and suggests relatively unexplored research avenues. This manuscript calls for an integrated approach that incorporates such diverse fields as life-history theory, plant mate choice, wasp sexual selection and local mate competition, plant embryology as well as seed and fruit dispersal. It calls for collaboration between researchers such as plant developmental biologists, insect physiologists, chemical ecologists and sensory biologists to jointly solve the many valuable questions that can be addressed in community ecology, co-evolution and species interaction biology using the fig inflorescence microcosm, that is inhabited by gall-inducing mutualistic and parasitic wasps, as a model system.
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Bae H, Paludan M, Knoblauch J, Jensen KH. Neural networks and robotic microneedles enable autonomous extraction of plant metabolites. PLANT PHYSIOLOGY 2021; 186:1435-1441. [PMID: 34014283 PMCID: PMC8260139 DOI: 10.1093/plphys/kiab178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 03/28/2021] [Indexed: 06/12/2023]
Abstract
Plant metabolites comprise a wide range of extremely important chemicals. In many cases, like savory spices, they combine distinctive functional properties-deterrence against herbivory-with an unmistakable flavor. Others have remarkable therapeutic qualities, for instance, the malaria drug artemisinin, or mechanical properties, for example natural rubber. We present a breakthrough in plant metabolite extraction technology. Using a neural network, we teach a computer how to recognize metabolite-rich cells of the herbal plant rosemary (Rosmarinus officinalis) and automatically extract the chemicals using a microrobot while leaving the rest of the plant undisturbed. Our approach obviates the need for chemical and mechanical separation and enables the extraction of plant metabolites that currently lack proper methods for efficient biomass use. Computer code required to train the neural network, identify regions of interest, and control the micromanipulator is available as part of the Supplementary Material.
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Affiliation(s)
- Hansol Bae
- Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Magnus Paludan
- Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Jan Knoblauch
- Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Kaare H. Jensen
- Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
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34
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Amini MH, Ashraf K, Salim F, Meng Lim S, Ramasamy K, Manshoor N, Sultan S, Ahmad W. Important insights from the antimicrobial activity of Calotropis procera. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103181] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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35
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Xu Z, Qi C, Zhang M, Zhu J, Hu J, Feng K, Sun J, Wei P, Shen G, Zhang P, He L. Selenium mediated host plant-mite conflict: defense and adaptation. PEST MANAGEMENT SCIENCE 2021; 77:2981-2989. [PMID: 33624403 DOI: 10.1002/ps.6337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Selenium has shown effectiveness in protecting plants from herbivores. However, some insects have evolved adaptability to selenium. RESULTS Selenium accumulation in host plants protected them against spider mite feeding. Selenium showed toxic effects on spider mites by reducing growth and interfering with reproduction. After 40 generations on selenium-rich plants, a Tetranychus cinnabarinus strain (Tc-Se) developed adaptability to selenium, with an increased rate of population growth and enhanced ability for selenium metabolism. The high expression of two genes (GSTd07 and SPS1) in the selenium metabolism pathway might be involved in selenium metabolism in spider mites. After GSTd07 and SPS1 were silenced, the selenium adaptability decreased. Recombinant GSTd07 protein promoted the reaction between sodium selenite and glutathione (GSH) and increased the production of sodium selenite metabolites. The results indicated that GSTd07 was involved in the first step of selenium metabolism. CONCLUSION Plants can resist spider mite feeding by accumulating selenium. Spider mites subjected to long-term selenium exposure can adapt to selenium by increasing the expression of key genes involved in selenium metabolism. These results elucidate the mechanism of the interaction between mites and host plants mediated by selenium. This study of the interaction between selenium-mediated host plants and spider mites may lead to the development of new and less toxic methods for the prevention and control of spider mites. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Zhifeng Xu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - CuiCui Qi
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Mengyu Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Jiayan Zhu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Jia Hu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Kaiyang Feng
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Jingyu Sun
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Peng Wei
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Guangmao Shen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Ping Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
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Castelblanque L, García-Andrade J, Martínez-Arias C, Rodríguez JJ, Escaray FJ, Aguilar-Fenollosa E, Jaques JA, Vera P. Opposing roles of plant laticifer cells in the resistance to insect herbivores and fungal pathogens. PLANT COMMUNICATIONS 2021; 2:100112. [PMID: 34027388 PMCID: PMC8132127 DOI: 10.1016/j.xplc.2020.100112] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 08/07/2020] [Accepted: 09/09/2020] [Indexed: 06/12/2023]
Abstract
More than 12,000 plant species (ca. 10% of flowering plants) exude latex when their tissues are injured. Latex is produced and stored in specialized cells named "laticifers". Laticifers form a tubing system composed of rows of elongated cells that branch and create an internal network encompassing the entire plant. Laticifers constitute a recent evolutionary achievement in ecophysiological adaptation to specific natural environments; however, their fitness benefit to the plant still remains to be proven. The identification of Euphorbia lathyris mutants (pil mutants) deficient in laticifer cells or latex metabolism, and therefore compromised in latex production, allowed us to test the importance of laticifers in pest resistance. We provided genetic evidence indicating that laticifers represent a cellular adaptation for an essential defense strategy to fend off arthropod herbivores with different feeding habits, such as Spodoptera exigua and Tetranychus urticae. In marked contrast, we also discovered that a lack of laticifer cells causes complete resistance to the fungal pathogen Botrytis cinerea. Thereafter, a latex-derived factor required for conidia germination on the leaf surface was identified. This factor promoted disease susceptibility enhancement even in the non-latex-bearing plant Arabidopsis. We speculate on the role of laticifers in the co-evolutionary arms race between plants and their enemies.
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Affiliation(s)
- Lourdes Castelblanque
- Instituto de Biología Molecular y Celular de Plantas, Universitat Politécnica de València-C.S.I.C, Ciudad Politécnica de la Innovación, Edificio 8E, Ingeniero Fausto Elio, s/n, 46022 Valencia, Spain
| | - Javier García-Andrade
- Instituto de Biología Molecular y Celular de Plantas, Universitat Politécnica de València-C.S.I.C, Ciudad Politécnica de la Innovación, Edificio 8E, Ingeniero Fausto Elio, s/n, 46022 Valencia, Spain
| | - Clara Martínez-Arias
- Instituto de Biología Molecular y Celular de Plantas, Universitat Politécnica de València-C.S.I.C, Ciudad Politécnica de la Innovación, Edificio 8E, Ingeniero Fausto Elio, s/n, 46022 Valencia, Spain
| | - Juan J. Rodríguez
- Instituto de Biología Molecular y Celular de Plantas, Universitat Politécnica de València-C.S.I.C, Ciudad Politécnica de la Innovación, Edificio 8E, Ingeniero Fausto Elio, s/n, 46022 Valencia, Spain
| | - Francisco J. Escaray
- Instituto de Biología Molecular y Celular de Plantas, Universitat Politécnica de València-C.S.I.C, Ciudad Politécnica de la Innovación, Edificio 8E, Ingeniero Fausto Elio, s/n, 46022 Valencia, Spain
| | - Ernestina Aguilar-Fenollosa
- Universitat Jaume I, Departament de Ciències Agràries i del Medi Natural, Campus del Riu Sec, 12003 Castelló de la Plana, Spain
| | - Josep A. Jaques
- Universitat Jaume I, Departament de Ciències Agràries i del Medi Natural, Campus del Riu Sec, 12003 Castelló de la Plana, Spain
| | - Pablo Vera
- Instituto de Biología Molecular y Celular de Plantas, Universitat Politécnica de València-C.S.I.C, Ciudad Politécnica de la Innovación, Edificio 8E, Ingeniero Fausto Elio, s/n, 46022 Valencia, Spain
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Salomé-Abarca LF, Gođevac D, Kim MS, Hwang GS, Park SC, Jang YP, Van Den Hondel CAMJJ, Verpoorte R, Klinkhamer PGL, Choi YH. Latex Metabolome of Euphorbia Species: Geographical and Inter-Species Variation and its Proposed Role in Plant Defense against Herbivores and Pathogens. J Chem Ecol 2021; 47:564-576. [PMID: 33881708 PMCID: PMC8217033 DOI: 10.1007/s10886-021-01274-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 03/01/2021] [Accepted: 04/07/2021] [Indexed: 11/30/2022]
Abstract
Based on the hypothesis that the variation of the metabolomes of latex is a response to selective pressure and should thus be affected differently from other organs, their variation could provide an insight into the defensive chemical selection of plants. Metabolic profiling was used to compare tissues of three Euphorbia species collected in diverse regions. The metabolic variation of latexes was much more limited than that of other organs. In all the species, the levels of polyisoprenes and terpenes were found to be much higher in latexes than in leaves and roots of the corresponding plants. Polyisoprenes were observed to physically delay the contact of pathogens with plant tissues and their growth. A secondary barrier composed of terpenes in latex and in particular, 24-methylenecycloartanol, exhibited antifungal activity. These results added to the well-known role of enzymes also present in latexes, show that these are part of a cooperative defense system comprising biochemical and physical elements.
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Affiliation(s)
- Luis Francisco Salomé-Abarca
- Natural Products Laboratory, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE, Leiden, The Netherlands
| | - Dejan Gođevac
- Institute of Chemistry, Technology and Metallurgy, National Institute, University of Belgrade, Studentski trg 12-16, Belgrade, 11000, Serbia
| | - Min Sun Kim
- Food Analysis Center, Korea Food Research Institute, Wanju, Republic of Korea
| | - Geum-Sook Hwang
- Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute, Seoul, Republic of Korea
| | - Sang Cheol Park
- College of Pharmacy, Kyung Hee University, 02447, Seoul, Republic of Korea
| | - Young Pyo Jang
- College of Pharmacy, Kyung Hee University, 02447, Seoul, Republic of Korea
| | - Cees A M J J Van Den Hondel
- Department Molecular Microbiology and Biotechnology, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE, Leiden, The Netherlands
| | - Robert Verpoorte
- Natural Products Laboratory, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE, Leiden, The Netherlands
| | - Peter G L Klinkhamer
- Plant Ecology and Phytochemistry, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE, Leiden, The Netherlands
| | - Young Hae Choi
- Natural Products Laboratory, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE, Leiden, The Netherlands. .,College of Pharmacy, Kyung Hee University, 02447, Seoul, Republic of Korea.
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38
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Li HL, Guo D, Wang Y, Zhu JH, Qu L, Peng SQ. Tobacco rattle virus-induced gene silencing in Hevea brasiliensis. Biosci Biotechnol Biochem 2021; 85:562-567. [PMID: 33590039 DOI: 10.1093/bbb/zbaa085] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/10/2020] [Indexed: 12/21/2022]
Abstract
Virus-induced gene silencing (VIGS) is a powerful gene-silencing tool that has been intensively applied in plants. To data, the application of VIGS in rubber tree has not yet been reported. In this study, we described the efficient gene silencing in rubber tree by VIGS. The gene encoding Hevea brasiliensis phytoene desaturase (HbPDS) was identified in rubber tree genome. Small interfering RNAs from HbPDS and the silencing gene fragment were predicted and a length of 399 bp was selected to be tested. We showed that the tobacco rattle virus (TRV)-VIGS could induce effective HbPDS silencing in rubber tree. This study was the first to report VIGS in rubber tree. The present TRV-VIGS method could be used to perform reverse genetic approaches to identify unknown gene functions and might be further applied to produce gene silenced rubber tree plants, to advance functional gene of rubber tree.
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Affiliation(s)
- Hui-Liang Li
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Dong Guo
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Ying Wang
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Jia-Hong Zhu
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Long Qu
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China.,School of Life and Pharmaceutical Sciences, Hainan University, Haikou, China
| | - Shi-Qing Peng
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China.,Hainan Academy of Tropical Agricultural Resource, CATAS, Haikou, China
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Barnes EK, Kwon M, Hodgins CL, Qu Y, Kim SW, Yeung EC, Ro DK. The promoter sequences of lettuce cis-prenyltransferase and its binding protein specify gene expression in laticifers. PLANTA 2021; 253:51. [PMID: 33507397 DOI: 10.1007/s00425-021-03566-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
MAIN CONCLUSION Promoters of lettuce cis-prenyltransferase 3 (LsCPT3) and CPT-binding protein 2 (LsCBP2) specify gene expression in laticifers, as supported by in situ β-glucuronidase stains and microsection analysis. Lettuce (Lactuca sativa) has articulated laticifers alongside vascular bundles. In the cytoplasm of laticifers, natural rubber (cis-1,4-polyisoprene) is synthesized by cis-prenyltransferase (LsCPT3) and CPT-binding protein (LsCBP2), both of which form an enzyme complex. Here we determined the gene structures of LsCPT3 and LsCBP2 and characterized their promoter activities using β-glucuronidase (GUS) reporter assays in stable transgenic lines of lettuce. LsCPT3 has a single 7.4-kb intron while LsCBP2 has seven introns including a 940-bp intron in the 5'-untranslated region (UTR). Serially truncated LsCPT3 promoters (2.3 kb, 1.6 kb, and 1.1 kb) and the LsCBP2 promoter with (1.7 kb) or without (0.8 kb) the 940-bp introns were fused to GUS to examine their promoter activities. In situ GUS stains of the transgenic plants revealed that the 1.1-kb LsCPT3 and 0.8-kb LsCBP2 promoter without the 5'-UTR intron are sufficient to express GUS exclusively in laticifers. Fluorometric assays showed that the LsCBP2 promoter was several-fold stronger than the CaMV35S promoter and was ~ 400 times stronger than the LsCPT3 promoter in latex. Histochemical analyses confirmed that both promoters express GUS exclusively in laticifers, recognized by characteristic fused multicellular structures. We concluded that both the LsCPT3 and LsCBP2 promoters specify gene expression in laticifers, and the LsCBP2 promoter displays stronger expression than the CaMV35S promoter in laticifers. For the LsCPT3 promoter, it appears that unknown cis-elements outside of the currently examined LsCPT3 promoter are required to enhance LsCPT3 expression.
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Affiliation(s)
- Elysabeth K Barnes
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Moonhyuk Kwon
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada
- Division of Applied Life Sciences (BK21 Plus), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 660-701, Republic of Korea
| | - Connor L Hodgins
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Yang Qu
- Department of Chemistry, University of New Brunswick Fredericton, Fredericton, E3B 5A3, Canada
| | - Seon-Won Kim
- Division of Applied Life Sciences (BK21 Plus), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 660-701, Republic of Korea
| | - Edward C Yeung
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Dae-Kyun Ro
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
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Savadogo EH, Shiomi Y, Yasuda J, Akino T, Yamaguchi M, Yoshida H, Umegawachi T, Tanaka R, Suong DNA, Miura K, Yazaki K, Kitajima S. Gene expression of PLAT and ATS3 proteins increases plant resistance to insects. PLANTA 2021; 253:37. [PMID: 33464406 DOI: 10.1007/s00425-020-03530-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
Genes of the PLAT protein family, including PLAT and ATS3 subfamilies of higher plants and homologs of liverwort, are involved in plant defense against insects. Laticifer cells in plants contain large amounts of anti-microbe or anti-insect proteins and are involved in plant defense against biotic stresses. We previously found that PLAT proteins accumulate in laticifers of fig tree (Ficus carica) at comparable levels to those of chitinases, and the transcript level of ATS3, another PLAT domain-containing protein, is highest in the transcriptome of laticifers of Euphorbia tirucalli. In this study, we investigated whether the PLAT domain-containing proteins are involved in defense against insects. Larvae of the lepidopteran Spodoptera litura showed retarded growth when fed with Nicotiana benthamiana leaves expressing F. carica PLAT or E. tirucalli ATS3 genes, introduced by agroinfiltration using expression vector pBYR2HS. Transcriptome analysis of these leaves indicated that ethylene and jasmonate signaling were activated, leading to increased expression of genes for PR-1, β-1,3-glucanase, PR5 and trypsin inhibitors, suggesting an indirect mechanism of PLAT- and ATS3-induced resistance in the host plant. Direct cytotoxicity of PLAT and ATS3 to insects was also possible because heterologous expression of the corresponding genes in Drosophila melanogaster caused apoptosis-mediated cell death in this insect. Larval growth retardation of S. litura occurred when they were fed radish sprouts, a good host for agroinfiltration, expressing any of nine homologous genes of dicotyledon Arabidopsis thaliana, monocotyledon Brachypodium distachyon, conifer Picea sitchensis and liverwort Marchantia polymorpha. Of these nine genes, the heterologous expression of A. thaliana AT5G62200 and AT5G62210 caused significant increases in larval death. These results indicated that the PLAT protein family has largely conserved anti-insect activity in the plant kingdom (249 words).
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Affiliation(s)
- Eric Hyrmeya Savadogo
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Yui Shiomi
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Junko Yasuda
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Toshiharu Akino
- The Center for Advanced Insect Research Promotion, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Masamitsu Yamaguchi
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Hideki Yoshida
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Takanari Umegawachi
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Ryo Tanaka
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Dang Ngoc Anh Suong
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Kenji Miura
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
- Tsukuba-Plant Innovation Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
| | - Kazufumi Yazaki
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, 611-0011, Japan
| | - Sakihito Kitajima
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan.
- The Center for Advanced Insect Research Promotion, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan.
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Tavares LS, Ralph MT, Batista JEC, Sales AC, Ferreira LCA, Usman UA, da Silva Júnior VA, Ramos MV, Lima-Filho JV. Perspectives for the use of latex peptidases from Calotropis procera for control of inflammation derived from Salmonella infections. Int J Biol Macromol 2021; 171:37-43. [PMID: 33418044 DOI: 10.1016/j.ijbiomac.2020.12.172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/22/2020] [Accepted: 12/22/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Anti-inflammatory properties have been attributed to latex proteins of the medicinal plant Calotropis procera. PURPOSE A mixture of cysteine peptidases (LPp2) from C. procera latex was investigated for control of inflammatory mediators and inflammation in a mouse model of Salmonella infection. METHODS LPp2 peptidase activity was confirmed by the BANA assay. Cytotoxicity assays were conducted with immortalized macrophages. Peritoneal macrophages (pMØ) from Swiss mice were stimulated with lipopolysaccharide (LPS) in 96-well plates and then cultured with nontoxic concentrations of LPp2. Swiss mice intravenously received LPp2 (10 mg/kg) and then were challenged intraperitoneally with virulent Salmonella enterica Ser. Typhimurium. RESULTS LPp2 was not toxic at dosages lower than 62.2 μg/mL. LPp2 treatments of pMØ stimulated with LPS impaired mRNA expression of pro-inflammatory cytokines IL-1β, TNF-α, IL-6 and IL-10. LPp2 increased the intracellular bacterial killing in infected pMØ. Mice given LPp2 had a lower number of leukocytes in the peritoneal cavity in comparison to control groups 6 h after infection. The bacterial burden and histological damage were widespread in target organs of mice receiving LPp2. CONCLUSION We conclude that LPp2 contains peptidases with strong anti-inflammatory properties, which may render mice more susceptible to early disseminated infection caused by Salmonella.
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Affiliation(s)
| | - Maria Taciana Ralph
- Department of Biology, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | | | - Ana Clarissa Sales
- Department of Biology, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | | | - Usman Abdulhadi Usman
- Department of Veterinary Medicine, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | | | - Marcio Viana Ramos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
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Al-Rowaily SL, Abd-ElGawad AM, Assaeed AM, Elgamal AM, Gendy AENGE, Mohamed TA, Dar BA, Mohamed TK, Elshamy AI. Essential Oil of Calotropis procera: Comparative Chemical Profiles, Antimicrobial Activity, and Allelopathic Potential on Weeds. Molecules 2020; 25:molecules25215203. [PMID: 33182287 PMCID: PMC7664932 DOI: 10.3390/molecules25215203] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 12/16/2022] Open
Abstract
Plants are considered green resources for thousands of bioactive compounds. Essential oils (EOs) are an important class of secondary compounds with various biological activities, including allelopathic and antimicrobial activities. Herein, the present study aimed to compare the chemical profiles of the EOs of the widely distributed medicinal plant Calotropis procera collected from Saudi Arabia and Egypt. In addition, this study also aimed to assess their allelopathic and antimicrobial activities. The EOs from Egyptian and Saudi ecospecies were extracted by hydrodistillation and analyzed via GC-MS. The correlation between the analyzed EOs and those published from Egypt, India, and Nigeria was assessed by principal component analysis (PCA) and agglomerative hierarchical clustering (AHC). The allelopathic activity of the extracted EOs was tested against two weeds (Bidens pilosa and Dactyloctenium aegyptium). Moreover, the EOs were tested for antimicrobial activity against seven bacterial and two fungal strains. Ninety compounds were identified from both ecospecies, where 76 compounds were recorded in Saudi ecospecies and 33 in the Egyptian one. Terpenes were recorded as the main components along with hydrocarbons, aromatics, and carotenoids. The sesquiterpenes (54.07%) were the most abundant component of EO of the Saudi sample, while the diterpenes (44.82%) represented the mains of the Egyptian one. Hinesol (13.50%), trans-chrysanthenyl acetate (12.33%), 1,4-trans-1,7-cis-acorenone (7.62%), phytol (8.73%), and myristicin (6.13%) were found as the major constituents of EO of the Saudi sample, while phytol (38.02%), n-docosane (6.86%), linoleic acid (6.36%), n-pentacosane (6.31%), and bicyclogermacrene (4.37%) represented the main compounds of the Egyptian one. It was evident that the EOs of both ecospecies had potent phytotoxic activity against the two tested weeds, while the EO of the Egyptian ecospecies was more effective, particularly on the weed D. aegyptium. Moreover, the EOs showed substantial antibacterial and antifungal activities. The present study revealed that the EOs of Egyptian and Saudi ecospecies were different in quality and quantity, which could be attributed to the variant environmental and climatic conditions. The EOs of both ecospecies showed significant allelopathic and antimicrobial activity; therefore, these EOs could be considered as potential green eco-friendly resources for weed and microbe control, considering that this plant is widely grown in arid habitats.
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Affiliation(s)
- Saud L. Al-Rowaily
- Plant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (S.L.A.-R.); (A.M.A.); (B.A.D.)
| | - Ahmed M. Abd-ElGawad
- Plant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (S.L.A.-R.); (A.M.A.); (B.A.D.)
- Department of Botany, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
- Correspondence: (A.M.A.-E.); (A.I.E.); Tel.: +966-562680864 (A.M.A.-E.); +20-1005525108 (A.I.E.)
| | - Abdulaziz M. Assaeed
- Plant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (S.L.A.-R.); (A.M.A.); (B.A.D.)
| | - Abdelbaset M. Elgamal
- Department of Chemistry of Microbial and Natural Products, 33 El-Bohouth St., Dokki, Giza 12622, Egypt;
| | - Abd El-Nasser G. El Gendy
- Medicinal and Aromatic Plants Research Department, National Research Centre, 33 El Bohouth St., Dokki, Giza 12622, Egypt;
| | - Tarik A. Mohamed
- Chemistry of Medicinal Plants Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt;
| | - Basharat A. Dar
- Plant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (S.L.A.-R.); (A.M.A.); (B.A.D.)
| | - Tahia K. Mohamed
- Department of Natural Compounds Chemistry, National Research Centre, 33 El Bohouth St., Dokki, Giza 12622, Egypt;
| | - Abdelsamed I. Elshamy
- Department of Natural Compounds Chemistry, National Research Centre, 33 El Bohouth St., Dokki, Giza 12622, Egypt;
- Correspondence: (A.M.A.-E.); (A.I.E.); Tel.: +966-562680864 (A.M.A.-E.); +20-1005525108 (A.I.E.)
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Lee YK, Thong OM, Sunderasan E, Norazreen AR, Sreeramanan S. Cytotoxicity and genotoxicity of Hevea brasiliensis latex C-serum DCS sub-fraction as anticancer agents. J RUBBER RES 2020. [DOI: 10.1007/s42464-020-00056-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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44
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Silveira SR, Coelho RA, Sousa BFE, Oliveira JSD, Lopez LMI, Lima-Filho JVM, Rocha Júnior PAV, Souza DPD, Freitas CDTD, Ramos MV. Standardized production of a homogeneous latex enzyme source overcoming seasonality and microenvironmental variables. Prep Biochem Biotechnol 2020; 51:375-385. [PMID: 32940546 DOI: 10.1080/10826068.2020.1818258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Calotropis procera produces a milky sap containing proteolytic enzymes. At low concentrations, they induce milk-clotting (60 µg/ml) and to dehair hides (0.05 and 0.1%). A protocol for obtaining the enzymes is reported. The latex was mixed with distilled water and the mixture was cleaned through centrifugation. It was dialyzed with distilled water and centrifuged again to recover the soluble fraction [EP]. The dialyze is a key feature of the process. EP was characterized in terms of protein profile, chemical stability, among other criteria. Wild plants belonging to ten geographic regions and grown in different ecological conditions were used as latex source. Collections were carried out, spaced at three-month, according to the seasons at the site of the study. Proteolytic activity was measured as an internal marker and for determining stability of the samples. EP was also analyzed for metal content and microbiology. EP showed similar magnitude of proteolysis, chromatographic and electrophoretic profiles of proteins. Samples stored at 25 °C exhibited reduced solubility (11%) and proteolytic capacity (11%) after six months. Enzyme autolysis was negligible. Microbiological and metal analyses revealed standard quality of all the samples tested. EP induced milk clotting and hide dehairing after storage for up to six months.
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Affiliation(s)
- Sandro Rios Silveira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Ceará, Brazil
| | - Raphael Alves Coelho
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Ceará, Brazil
| | - Brandon Ferraz E Sousa
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Ceará, Brazil
| | - Jefferson Soares de Oliveira
- Laboratório de Bioquímica de Plantas laticíferas (LABPL), Universidade Federal do Delta do Parnaíba, Parnaíba, Piauí, Brazil
| | - Laura Maria Isabel Lopez
- Centro de Investigación y Tecnología del Cuero, Comisión de Investigaciones Científicas de la Provincia de Buenos Aires & INTI-Cueros, Gonnet, Buenos Aires, Argentina
| | | | | | - Diego Pereira de Souza
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Ceará, Brazil
| | | | - Márcio Viana Ramos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Ceará, Brazil
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Cruz WT, Bezerra EHS, Ramos MV, Rocha BAM, Medina MC, Demarco D, Carvalho CPS, Oliveira JS, Sousa JS, Souza PFN, Freire VN, da Silva FMS, Freitas CDT. Crystal structure and specific location of a germin-like protein with proteolytic activity from Thevetia peruviana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 298:110590. [PMID: 32771148 DOI: 10.1016/j.plantsci.2020.110590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/26/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
Peruvianin-I is a cysteine peptidase (EC 3.4.22) purified from Thevetia peruviana. Previous studies have shown that it is the only germin-like protein (GLP) with proteolytic activity described so far. In this work, the X-ray crystal structure of peruvianin-I was determined to a resolution of 2.15 Å (PDB accession number: 6ORM) and its specific location was evaluated by different assays. Its overall structure shows an arrangement composed of a homohexamer (a trimer of dimers) where each monomer exhibits a typical β-barrel fold and two glycosylation sites (Asn55 and Asn144). Analysis of its active site confirmed the absence of essential amino acids for typical oxalate oxidase activity of GLPs. Details of the active site and molecular docking results, using a specific cysteine peptidase inhibitor (iodoacetamide), were used to discuss a plausible mechanism for proteolytic activity of peruvianin-I. Histological analyses showed that T. peruviana has articulated anastomosing laticifers, i.e., rows of cells which merge to form continuous tubes throughout its green organs. Moreover, peruvianin-I was detected exclusively in the latex. Because latex peptidases have been described as defensive molecules against insects, we hypothesize that peruvianin-I contributes to protect T. peruviana plants against herbivory.
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Affiliation(s)
- Wallace T Cruz
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, CEP 60.440-554, Fortaleza, Ceará, Brazil
| | - Eduardo H S Bezerra
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, CEP 60.440-554, Fortaleza, Ceará, Brazil
| | - Márcio V Ramos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, CEP 60.440-554, Fortaleza, Ceará, Brazil
| | - Bruno A M Rocha
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, CEP 60.440-554, Fortaleza, Ceará, Brazil
| | - Maria C Medina
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, CEP 05.508-090, São Paulo, São Paulo, Brazil
| | - Diego Demarco
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, CEP 05.508-090, São Paulo, São Paulo, Brazil
| | - Cristina Paiva S Carvalho
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, CEP 60.440-554, Fortaleza, Ceará, Brazil
| | - Jefferson S Oliveira
- Departamento de Biomedicina, Universidade Federal do Delta do Parnaíba, Campus Ministro Reis Velloso, Parnaíba, Piauí, Brazil
| | - Jeanlex S Sousa
- Departamento de Física, Universidade Federal de Ceará, Fortaleza, Brazil
| | - Pedro F N Souza
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, CEP 60.440-554, Fortaleza, Ceará, Brazil
| | - Valder N Freire
- Departamento de Física, Universidade Federal de Ceará, Fortaleza, Brazil
| | | | - Cleverson D T Freitas
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, CEP 60.440-554, Fortaleza, Ceará, Brazil.
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Leme FM, Borella PH, Marinho CR, Teixeira SP. Expanding the laticifer knowledge in Cannabaceae: distribution, morphology, origin, and latex composition. PROTOPLASMA 2020; 257:1183-1199. [PMID: 32212022 DOI: 10.1007/s00709-020-01500-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/10/2020] [Indexed: 06/10/2023]
Abstract
Cannabaceae is a known family because of the production of cannabinoids in laticifers and glandular trichomes of Cannabis sativa. Laticifers are latex-secreting structures, which in Cannabaceae were identified only in C. sativa and Humulus lupulus. This study aimed to expand the knowledge of laticifers in Cannabaceae by checking their structural type and distribution, and the main classes of substances in the latex of Celtis pubescens, Pteroceltis tatarinowii, and Trema micrantha. Such information is also updated for C. sativa. Samples of shoot apices, stems, leaves, and flowers were processed for anatomical, histochemical, ultrastructural, and cytochemical analyses. Laticifers are articulated unbranched in all species instead of non-articulated as previously described for the family. They occur in all sampled organs. They are thick-walled, multinucleate, with a large vacuole and a peripheral cytoplasm. The cytoplasm is rich in mitochondria, endoplasmic reticulum, dictyosomes, ribosomes, and plastids containing starch grains and oil drops. Pectinase and cellulase activities were detected in the laticifer wall and vacuole, confirming its articulated origin, described by first time in the family. These enzymes promote the complete dissolution of the laticifer terminal walls. The latex contains proteins, lipids, and polysaccharides in addition to phenolics (C. sativa) and terpenes (C. pubescens, T. micrantha). The presence of laticifers with similar distribution and morphology supports the recent insertion of Celtis, Pteroceltis, and Trema in Cannabaceae. The articulated type of laticifer found in Cannabaceae, Moraceae, and Urticaceae indicates that the separation of these families by having distinct laticifer types should be reviewed.
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Affiliation(s)
- Flávia Maria Leme
- Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, R. Monteiro Lobato 255, Campinas, SP, 13083-862, Brazil
- Laboratório de Botânica, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, Campo Grande, MS, 79070-900, Brazil
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | - Pedro Henrique Borella
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | - Cristina Ribeiro Marinho
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | - Simone Pádua Teixeira
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, Ribeirão Preto, SP, 14040-903, Brazil.
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The Secretory Apparatus of Tabernaemontana ventricosa Hochst. ex A.DC. (Apocynaceae): Laticifer Identification, Characterization and Distribution. PLANTS 2020; 9:plants9060686. [PMID: 32481708 PMCID: PMC7355860 DOI: 10.3390/plants9060686] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/17/2020] [Accepted: 05/25/2020] [Indexed: 11/28/2022]
Abstract
Due to the inconsistencies in the interpretation of laticifers within the Apocynaceae, the current study aimed to distinguish, for the first time, the type and distribution of the laticifers in the embryos, seedlings and adult plants of Tabernaemontana ventricosa (Forest Toad tree). The characterization and distribution of laticifers were determined using light and electron microscopy. The findings revealed the presence of articulated anastomosing laticifers. The laticifers were found to have originated from ground meristematic and procambium cells and were randomly distributed in all ground and vascular tissue, displaying complex branching conformations. The presence of chemical constituents within the laticifers and latex determined by histochemical analysis revealed the presence of alkaloids, phenolics, neutral lipids, terpenoids, mucilage, pectin, resin acids, carboxylated polysaccharides, lipophilic, and hydrophilic substances and proteins. These secondary metabolites perform an indispensable role in preventing herbivory, hindering and deterring micro-organisms and may possibly have medicinal importance. The outcomes of the present study outlined the first micromorphology, anatomy, ultrastructural and chemical analysis of the laticifers of T. ventricosa. In addition, this investigation similarly established the probable functions of latex and laticifers.
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Al Sulaibi MAM, Thiemann C, Thiemann T. Chemical Constituents and Uses of Calotropis Procera and Calotropis Gigantea – A Review (Part I – The Plants as Material and Energy Resources). ACTA ACUST UNITED AC 2020. [DOI: 10.2174/1874842202007010001] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The traditional and current use of Calotropis procera and C. gigantea, two soft-wooded, xerophytic shrubs of the family Apocynaceae, are reviewed against the background of the plants' chemical constituents and their biological properties. The focus is on the usage of the plants for building materials, natural pesticides, animal feed and bioremediative purposes.
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Chen CC, Dai L, Ma L, Guo RT. Enzymatic degradation of plant biomass and synthetic polymers. Nat Rev Chem 2020; 4:114-126. [PMID: 37128024 DOI: 10.1038/s41570-020-0163-6] [Citation(s) in RCA: 138] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2020] [Indexed: 12/17/2022]
Abstract
Plant biomass is an abundant renewable resource on Earth. Microorganisms harvest energy from plant material by means of complex enzymatic systems that efficiently degrade natural polymers. Intriguingly, microorganisms have evolved to exploit these ancient mechanisms to also decompose synthetic plastic polymers. In this Review, we summarize the mechanisms by which they decompose non-starch plant biomass and the six major types of synthetic plastics. We focus on the structural features of the enzymes that contribute to substrate recognition and then describe the catalytic mechanisms of polymer metabolism. An understanding of these natural biocatalysts is valuable if we are to exploit their potential for the degradation of synthetic polymers.
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Cavalcante GS, Morais SMD, André WPP, Araújo-Filho JVD, Muniz CR, Rocha LOD, Ribeiro WLC, Rodrigues ALM, Oliveira LMBD, Bevilaqua CML, Ramos MV. Chemical constituents of Calotropis procera latex and ultrastructural effects on Haemonchus contortus. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINÁRIA 2020. [DOI: 10.1590/s1984-29612020045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Abstract This study aimed to evaluate the anthelmintic and ultrastructural effects of Calotropis procera latex on Haemonchus contortus. C. procera latex was twice centrifuged at 10,000×g and dialyzed to obtain a fraction rich in proteins, named LP (latex protein), and at 3,000 rpm to obtain a fraction rich in secondary metabolites, named LNP (latex non-protein). Specimens of H. contortus exposed to LNP, LP and PBS in the Adult Worm Motility Test (AWMT) were submitted to scanning (SEM) and transmission (TEM) electron microscopy to verify changes in their ultrastructure. Phytochemical tests in the LNP indicated the presence of phenols, steroids, alkaloids and cardenolides. High-Performance Liquid Chromatography (HPLC) characterized the presence of the compounds gallic acid and quercetin in the LNP. The protein content in the LP was 43.1 ± 1.1 mg/mL and 7.7 ± 0.3 mg/mL in LNP. In AWMT, LNP and LP inhibited the motility of 100% of the nematodes, with LNP being more effective than LP and ivermectin more effective than both (p <0.05). Cuticle changes were observed by SEM and TEM in nematodes treated with LP and LNP. Calotropis procera latex has anthelmintic effects against H. contortus, causing damage to its cuticle and other alterations in its ultrastructure.
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