1
|
Chaves RP, Dos Santos AKB, Andrade AL, Pinheiro ADA, Silva JMDS, da Silva FMS, de Sousa JP, Barroso Neto IL, Bezerra EHS, Abreu JO, de Carvalho FCT, de Sousa OV, de Sousa BL, da Rocha BAM, Silva ALC, do Nascimento Neto LG, de Vasconcelos MA, Teixeira EH, Carneiro RF, Sampaio AH, Nagano CS. Structural study and antimicrobial and wound healing effects of lectin from Solieria filiformis (Kützing) P.W.Gabrielson. Biochimie 2023; 214:61-76. [PMID: 37301421 DOI: 10.1016/j.biochi.2023.05.016] [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: 03/07/2023] [Revised: 05/12/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
The SfL-1 isoform from the marine red algae Solieria filiformis was produced in recombinant form (rSfL-1) and showed hemagglutinating activity and inhibition similar to native SfL. The analysis of circular dichroism revealed the predominance of β-strands structures with spectra of βI-proteins for both lectins, which had Melting Temperature (Tm) between 41 °C and 53 °C. The three-dimensional structure of the rSfL-1 was determined by X-ray crystallography, revealing that it is composed of two β-barrel domains formed by five antiparallel β chains linked by a short peptide between the β-barrels. SfL and rSfL-1 were able to agglutinate strains of Escherichia coli and Staphylococcus aureus and did not show antibacterial activity. However, SfL induced a reduction in E. coli biomass at concentrations from 250 to 125 μg mL-1, whereas rSfL-1 induced reduction in all concentrations tested. Additionally, rSfL-1 at concentrations from 250 to 62.5 μg mL-1, showed a statistically significant reduction in the number of colony-forming units, which was not noticed for SfL. Wound healing assay showed that the treatments with SfL and rSfL-1 act in reducing the inflammatory response and in the activation and proliferation of fibroblasts by a larger and fast deposition of collagen.
Collapse
Affiliation(s)
- Renata Pinheiro Chaves
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | | | - Alexandre Lopes Andrade
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil
| | - Aryane de Azevedo Pinheiro
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil; Curso de Medicina, Centro Universitário INTA, UNINTA, Itapipoca, CE, Brazil
| | | | | | - Jucilene Pereira de Sousa
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Ito Liberato Barroso Neto
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil; Curso de Medicina, Centro Universitário Unichristus, Fortaleza, Ceará, Brazil
| | - Eduardo Henrique Salviano Bezerra
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil; Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Cidade Universitária, Campinas, São Paulo, Brazil
| | - Jade Oliveira Abreu
- Instituto de Ciências do Mar - Labomar, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | | | - Oscarina Viana de Sousa
- Instituto de Ciências do Mar - Labomar, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Bruno Lopes de Sousa
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, Limoeiro do Norte, CE, Brazil
| | - Bruno Anderson Matias da Rocha
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - André Luis Coelho Silva
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Luiz Gonzaga do Nascimento Neto
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil; Curso de Licenciatura em Ciências Biológicas, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Campus Acaraú, Acaraú, CE, Brazil
| | - Mayron Alves de Vasconcelos
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil; Universidade do Estado de Minas Gerais, Unidade de Divinopolis, Divinopolis, MG, Brazil
| | - Edson Holanda Teixeira
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil
| | - Rômulo Farias Carneiro
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Celso Shiniti Nagano
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil.
| |
Collapse
|
2
|
Arekal RN, J S, Kumar A, B S G, M S D. Structural and functional analysis of a novel galactose-binding lectin derived from Chlorella sorokiniana MW769776. J Biomol Struct Dyn 2023:1-11. [PMID: 37904546 DOI: 10.1080/07391102.2023.2274519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/16/2023] [Indexed: 11/01/2023]
Abstract
A freshwater green microalgal strain was isolated and the lectin was identified in it by a strong hemagglutination activity (HA) assay. Characterization of the algal strain was found to be Chlorella sorokiniana (MW769776). A single step affinity chromatographic technique was developed to purify Chlorella sorokiniana lectin (CSL) using guar gum as the affinity matrix. The precipitate showed a single active peak with a titer value of 1024 HU, with a concentration of 1111 U, and a purification fold of 9. The purified protein exhibited a single band in SDS-PAGE with a molecular weight of 16 kDa. Analysis by liquid chromatography-electrospray ionization-quadrupole-time of flight mass spectrometry (LC-ESI-Q-TOF-MS) of tryptic-digested purified lectin showed that it was a monomeric protein. A multiple sequence alignment analysis revealed that the peptide sequences of CSL exhibited similarity with the H-type lectin domain of Micractinium conductrix. The structure of CSL was studied by FTIR and homology modeling methods, indicating the presence of α-helix as well as β-sheet in its secondary structure. Whereas the 3D structure exhibited the similarity with the core protein of light-harvesting reaction center complex of photosystem I. The significance of this study suggests that the characteristics of CSL are consistent with its identification as a hemagglutinin, a type of novel lectin, which suggests its candidature for various biological purposes.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Roopashri N Arekal
- Department of Microbiology, Biotechnology and Food Technology, Bangalore University, Bengaluru, India
| | - Savitha J
- Department of Microbiology, Biotechnology and Food Technology, Bangalore University, Bengaluru, India
| | - Ashwini Kumar
- Department of Microbiology, Genei Lab Pvt Ltd, Bengaluru, India
| | - Gunashree B S
- Department of Microbiology, Mangalore University, Kodagu, India
| | - Divyashree M S
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, India
| |
Collapse
|
3
|
Liao F, Han C, Deng Q, Zhou Z, Bao T, Zhong M, Tao G, Li R, Han B, Qiao Y, Hu Y. Natural Products as Mite Control Agents in Animals: A Review. Molecules 2023; 28:6818. [PMID: 37836661 PMCID: PMC10574536 DOI: 10.3390/molecules28196818] [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: 08/25/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Mites have been a persistent infectious disease affecting both humans and animals since ancient times. In veterinary clinics, the primary approach for treating and managing mite infestations has long been the use of chemical acaricides. However, the widespread use of these chemicals has resulted in significant problems, including drug resistance, drug residues, and environmental pollution, limiting their effectiveness. To address these challenges, researchers have shifted their focus towards natural products that have shown promise both in the laboratory and real-world settings against mite infestations. Natural products have a wide variety of chemical structures and biological activities, including acaricidal properties. This article offers a comprehensive review of the acaricidal capabilities and mechanisms of action of natural products like plant extracts, natural compounds, algae, and microbial metabolites against common animal mites.
Collapse
Affiliation(s)
- Fei Liao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
| | - Changquan Han
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Qingsheng Deng
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Ziyao Zhou
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
| | - Taotao Bao
- Qiandongnan Center for Animal Disease Control and Prevention, Kaili 556000, China;
| | - Menghuai Zhong
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Guangyao Tao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Renjun Li
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Bo Han
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Yanlong Qiao
- Department of Animal Husbandry and Fisheries, Guizhou Vocational College of Agriculture, Qingzhen 551400, China; (F.L.); (C.H.); (Q.D.); (M.Z.); (G.T.); (R.L.); (B.H.)
| | - Yanchun Hu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
| |
Collapse
|
4
|
Macroalgae as Protein Sources—A Review on Protein Bioactivity, Extraction, Purification and Characterization. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11177969] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The increased demand for protein sources combined with a decrease in the available land and water resources have led to a growing interest in macroalgae as alternative protein sources. This review focuses on strategies for macroalgae protein extraction, enrichment and characterization. To date, the protein extraction methods applied to algae include enzymatic hydrolysis, physical processes and chemical extraction. Novel methods, such as pulsed electric field, microwave-assisted, pressurized liquid and supercritical fluid extractions, and the application of smart solvents are discussed. An overview of the use of membranes and other processes to generate high-value protein concentrates from algae extracts is also presented, as well as some examples of the methods used for their characterization. The potential bioactivities from macroalgae-derived proteins and peptides, including novel glycoproteins and lectins, are briefly reviewed.
Collapse
|
5
|
Cavalcanti VLR, Brandão-Costa RMP, Pontual EV, de Andrade AF, Alves LC, Porto ALF, Bezerra RP. Chlorella vulgaris lectin kills Aedes aegypti larvae. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
6
|
Song C, Yang J, Zhang M, Ding G, Jia C, Qin J, Guo L. Marine Natural Products: The Important Resource of Biological Insecticide. Chem Biodivers 2021; 18:e2001020. [PMID: 33855815 DOI: 10.1002/cbdv.202001020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/23/2021] [Indexed: 12/21/2022]
Abstract
Due to the unique environmental conditions and vast territory, marine habitat breeds more abundant biological resources than terrestrial environment. Massive marine biological species provide valuable resources for obtaining a large number of natural products with diverse structure and excellent activity. In recent years, new breakthroughs have been made in the application of marine natural products in drug development. In addition, the use of marine natural products to develop insecticides and other pesticide products has also been widely concerned. Targeting marine plants, animals, and microorganisms, we have collected information on marine natural products with insecticidal activity for nearly decade, including alkaloids, terpenes, flavonoids and phenols fatty acids, peptides, and proteins, et al. In addition, some active crude extracts are also included. This review describes the insecticidal activities of marine natural products and their broad applications for future research in agriculture and health.
Collapse
Affiliation(s)
- Chenggang Song
- College of Plant Science, Jilin University, Changchun, 130062, P. R. China
| | - Jian Yang
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100193, P. R. China
| | - Mingzhe Zhang
- College of Plant Science, Jilin University, Changchun, 130062, P. R. China
| | - Gang Ding
- Institute of Medicinal Plant Department, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, P. R. China
| | - Chengguo Jia
- College of Plant Science, Jilin University, Changchun, 130062, P. R. China
| | - Jianchun Qin
- College of Plant Science, Jilin University, Changchun, 130062, P. R. China
| | - Lanping Guo
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100193, P. R. China
| |
Collapse
|
7
|
Hwang HJ, Han JW, Jeon H, Cho K, Kim JH, Lee DS, Han JW. Characterization of a Novel Mannose-Binding Lectin with Antiviral Activities from Red Alga, Grateloupia chiangii. Biomolecules 2020; 10:E333. [PMID: 32092955 PMCID: PMC7072537 DOI: 10.3390/biom10020333] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/04/2020] [Accepted: 02/17/2020] [Indexed: 12/11/2022] Open
Abstract
Lectins have the ability to bind specific carbohydrates and they have potential applications as medical and pharmacological agents. The unique structure and usefulness of red algal lectin have been reported, but these lectins are limited to a few marine algal groups. In this study, a novel mannose-binding lectin from Grateloupia chiangii (G. chiangii lectin, GCL) was purified using antiviral screens and affinity chromatography. We characterized the molecular weight, agglutination activity, hemagglutination activity, and heat stability of GCL. To determine the carbohydrate specificity, a glycan microarray was performed. GCL showed strong binding affinity for Maltohexaose-β-Sp1 and Maltoheptaose-β-Sp1 with weak affinity for other monosaccharides and preferred binding to high-mannan structures. The N-terminal sequence and peptide sequence of GCL were determined using an Edman degradation method and LC-MS/MS, and the cDNA and peptide sequences were deduced. GCL was shown to consist of 231 amino acids (24.9 kDa) and the N-terminus methionine was eliminated after translation. GCL possessed a tandem repeat structure of six domains, similar to the other red algal lectins. The mannose binding properties and tandem repeat structure of GCL may confer it the potential to act as an antiviral agent for protection against viral infection.
Collapse
Affiliation(s)
- Hyun-Ju Hwang
- Department of Applied Bioresource Science, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea; (H.-J.H.); (J.-W.H.); (H.J.); (K.C.)
| | - Jin-Wook Han
- Department of Applied Bioresource Science, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea; (H.-J.H.); (J.-W.H.); (H.J.); (K.C.)
| | - Hancheol Jeon
- Department of Applied Bioresource Science, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea; (H.-J.H.); (J.-W.H.); (H.J.); (K.C.)
| | - Kichul Cho
- Department of Applied Bioresource Science, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea; (H.-J.H.); (J.-W.H.); (H.J.); (K.C.)
| | - Ju-hee Kim
- Department of Ecology and Conservation, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea;
| | - Dae-Sung Lee
- Department of Genetic Resources Research, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea;
| | - Jong Won Han
- Department of Applied Bioresource Science, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea; (H.-J.H.); (J.-W.H.); (H.J.); (K.C.)
| |
Collapse
|
8
|
Torres P, Santos JP, Chow F, dos Santos DY. A comprehensive review of traditional uses, bioactivity potential, and chemical diversity of the genus Gracilaria (Gracilariales, Rhodophyta). ALGAL RES 2019. [DOI: 10.1016/j.algal.2018.12.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
9
|
Abreu TM, Monteiro VS, Martins ABS, Teles FB, da Conceição Rivanor RL, Mota ÉF, Macedo DS, de Vasconcelos SMM, Júnior JERH, Benevides NMB. Involvement of the dopaminergic system in the antidepressant-like effect of the lectin isolated from the red marine alga Solieria filiformis in mice. Int J Biol Macromol 2018; 111:534-541. [DOI: 10.1016/j.ijbiomac.2017.12.132] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 12/11/2017] [Accepted: 12/26/2017] [Indexed: 01/08/2023]
|
10
|
Singh RS, Walia AK. Lectins from red algae and their biomedical potential. JOURNAL OF APPLIED PHYCOLOGY 2017; 30:1833-1858. [PMID: 32214665 PMCID: PMC7088393 DOI: 10.1007/s10811-017-1338-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/06/2017] [Accepted: 11/06/2017] [Indexed: 05/08/2023]
Abstract
Lectins are unique proteins or glycoproteins of non-immune origin that bind specifically to carbohydrates. They recognise and interact reversibly to either free carbohydrates or glycoconjugates, without modifying their structure. Lectins are highly diverse and widely distributed in nature and have been extensively reported from various red algae species. Numerous red algae species have been reported to possess lectins having carbohydrate specificity towards complex glycoproteins or high-mannose N-glycans. These lectin-glycan interactions further trigger many biochemical responses which lead to their extensive use as valuable tools in biomedical research. Thus, owing to their exceptional glycan recognition property, red algae lectins are potential candidate for inhibition of various viral diseases. Hence, the present report integrates existing information on the red algae lectins, their carbohydrate specificity, and characteristics of purified lectins. Further, the review also reports the current state of research into their anti-viral activity against various enveloped viruses such as HIV, hepatitis, influenza, encephalitis, coronavirus and herpes simplex virus and other biomedical activities such as anti-cancer, anti-microbial, anti-inflammatory, anti-nociceptive and acaricidal activities.
Collapse
Affiliation(s)
- Ram Sarup Singh
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala, Punjab 147 002 India
| | - Amandeep Kaur Walia
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala, Punjab 147 002 India
| |
Collapse
|
11
|
Monteiro Júnior JE, Valadares NF, Pereira HD, Dyszy FH, da Costa Filho AJ, Uchôa AF, de Oliveira AS, da Silveira Carvalho CP, Grangeiro TB. Expression in Escherichia coli of cysteine protease inhibitors from cowpea (Vigna unguiculata): The crystal structure of a single-domain cystatin gives insights on its thermal and pH stability. Int J Biol Macromol 2017; 102:29-41. [DOI: 10.1016/j.ijbiomac.2017.04.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/26/2017] [Accepted: 04/03/2017] [Indexed: 10/19/2022]
|
12
|
War AR, Murugesan S, Boddepalli VN, Srinivasan R, Nair RM. Mechanism of Resistance in Mungbean [ Vigna radiata (L.) R. Wilczek var. radiata] to bruchids, Callosobruchus spp. (Coleoptera: Bruchidae). FRONTIERS IN PLANT SCIENCE 2017; 8:1031. [PMID: 28676807 PMCID: PMC5477293 DOI: 10.3389/fpls.2017.01031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 05/29/2017] [Indexed: 05/03/2023]
Abstract
Mungbean [Vigna radiata (L.) R. Wilczek var. radiata] is an important pulse crop in Asia, and is consumed as dry seeds and as bean sprouts. It is an excellent source of digestible protein. Bruchids [Callosobruchus chinensis (L.) and Callosobruchus maculatus (F.)] are the important pests of mungbean and cause damage in the field and in storage. Bruchid infestation reduces the nutritional and market value of the grain and renders seeds unfit for human consumption, agricultural and commercial uses. These pests are controlled mainly by fumigation with highly toxic chemicals such as carbon disulfide, phosphene, and methyl bromide, or by dusting with several other insecticides, which leave residues on the grain, thus, threatening food safety. Some plant-based extracts have been found useful in controlling bruchids, but are not fully successful due to their short-term activity, rapid degradability, and potentially negative effect on seed germination. Although some wild sources of bruchid resistance in mungbean have been reported, which have been used to develop bruchid- resistant lines, undesirable genetic linkages threaten the proper exploitation of genetic diversity from wild germplasm into commercial cultivars. Further, biotype variation in bruchids has rendered some mungbean lines susceptible that otherwise would have been resistant to the pest. Host plant resistance is a cost-effective and a safe alternative to control bruchids in mungbean and is associated with morphological, biochemical, and molecular traits. These traits affect insect growth and development, thereby, reduce the yield losses by the pests. Understanding the defense mechanisms against insect pests could be utilized in exploiting these traits in crop breeding. This review discusses different traits in mungbean involved in defense against bruchids and their utility in pest management. We also highlight the breeding constraints for developing bruchid-resistant mungbean and how can these constraints be minimized. We further highlight the importance of supporting conventional breeding techniques by molecular techniques such as molecular markers linked to bruchid resistance.
Collapse
Affiliation(s)
- Abdul R. War
- World Vegetable Center, South Asia, HyderabadIndia
- *Correspondence: Abdul R. War, ;
| | | | | | | | | |
Collapse
|
13
|
Wu M, Tong C, Wu Y, Liu S, Li W. A novel thyroglobulin-binding lectin from the brown alga Hizikia fusiformis and its antioxidant activities. Food Chem 2016; 201:7-13. [PMID: 26868541 DOI: 10.1016/j.foodchem.2016.01.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/29/2015] [Accepted: 01/14/2016] [Indexed: 11/20/2022]
Abstract
A lectin (HFL) was isolated from the brown alga, Hizikia fusiformis, through ion exchange on cellulose DE52 and HPLC with a TSK-gel G4000PWXL column. SDS-PAGE showed that HFL had a molecular mass of 16.1 kDa. The HPLC (with a TSK-gel G4000PWXL column) indicated that HFL is a tetramer in its native state. The total carbohydrate content was 41%. Glucose, galactose and fucose were the monosaccharide units of HFL, and the normalized mol% values were 6, 14 and 80, respectively. HFL contains a large amount of the acidic amino acid, Asx. The β-elimination reaction suggested that the oligosaccharide and peptide moieties of HFL may belong to the N-glucosidic linkage. The amino acid sequences, of about five segments of HFL, were acquired by MALDI-TOF/TOF, and the sequences have no homology with other lectins. HFL was found to agglutinate sheep erythrocytes. The hemagglutination activity was inhibited by thyroglobulin, from bovine thyroid, but not by any of the monosaccharides tested. The lectin reaction was independent of the presence of the divalent cation Ca(2+). HFL showed free radical scavenging activity against hydroxyl, DPPH and ABTS(+) radicals.
Collapse
Affiliation(s)
- Mingjiang Wu
- Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Changqing Tong
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China.
| | - Yue Wu
- Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Shuai Liu
- Department of Agronomy, Hetao College, Hetao 015000, China
| | - Wei Li
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China.
| |
Collapse
|
14
|
Donkor AM, Oduro-Mens D, Ani E, Ankamah E, Nsiah S, Ekow Mensa D, Kakra Dick E, Asamoah Ku K. In vitro Anti-Plasmodial Activity of Aqueous and Ethanolic Extracts of Moringa oleifera and Phyllanthus amarus. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/ijbc.2015.198.206] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
15
|
Abstract
Lectins are natural bioactive ubiquitous proteins or glycoproteins of non-immune response that bind reversibly to glycans of glycoproteins, glycolipids and polysaccharides possessing at least one non-catalytic domain causing agglutination. Some of them consist of several carbohydrate-binding domains which endow them with the properties of cell agglutination or precipitation of glycoconjugates. Lectins are rampant in nature from plants, animals and microorganisms. Among microorganisms, algae are the potent source of lectins with unique properties specifically from red algae. The demand of peculiar and neoteric biologically active substances has intensified the developments on isolation and biomedical applications of new algal lectins. Comprehensively, algal lectins are used in biomedical research for antiviral, antinociceptive, anti-inflammatory, anti-tumor activities, etc. and in pharmaceutics for the fabrication of cost-effective protein expression systems and nutraceutics. In this review, an attempt has been made to collate the information on various biomedical applications of algal lectins.
Collapse
Affiliation(s)
- Ram Sarup Singh
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University , Patiala, Punjab , India and
| | | | | |
Collapse
|
16
|
Chernikov OV, Molchanova VI, Chikalovets IV, Kondrashina AS, Li W, Lukyanov PA. Lectins of marine hydrobionts. BIOCHEMISTRY. BIOKHIMIIA 2013; 78:760-70. [PMID: 24010839 PMCID: PMC7088153 DOI: 10.1134/s0006297913070080] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 02/26/2013] [Indexed: 11/23/2022]
Abstract
Data from the literature and results of our research on lectins isolated from some kinds of marine hydrobionts such as clams, ascidians, sea worms, sponges, and algae are presented in this review. Results of comparative analysis of the basic physicochemical properties and biological activity of lectins isolated from various sources are discussed.
Collapse
Affiliation(s)
- O. V. Chernikov
- Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, pr. 100 let Vladivostoku 159, 690022 Vladivostok, Russia
| | - V. I. Molchanova
- Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, pr. 100 let Vladivostoku 159, 690022 Vladivostok, Russia
| | - I. V. Chikalovets
- Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, pr. 100 let Vladivostoku 159, 690022 Vladivostok, Russia
| | - A. S. Kondrashina
- Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, pr. 100 let Vladivostoku 159, 690022 Vladivostok, Russia
| | - W. Li
- Dalian Ocean University, Heishijiao str. 52, 116023 Dalian, P. R. China
| | - P. A. Lukyanov
- Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, pr. 100 let Vladivostoku 159, 690022 Vladivostok, Russia
| |
Collapse
|
17
|
Suttisrisung S, Senapin S, Withyachumnarnkul B, Wongprasert K. Identification and characterization of a novel legume-like lectin cDNA sequence from the red marine algae Gracilaria fisheri. J Biosci 2012; 36:833-43. [PMID: 22116281 DOI: 10.1007/s12038-011-9144-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A legume-type lectin (L-Lectin) gene of the red algae Gracilaria fisheri (GFL) was cloned by rapid amplification of cDNA ends (RACE). The full-length cDNA of GFL was 1714 bp and contained a 1542 bp open reading frame encoding 513 amino acids with a predicted molecular mass of 56.5 kDa. Analysis of the putative amino acid sequence with NCBI-BLAST revealed a high homology (30-68%) with legume-type lectins (L-lectin) from Griffithsia japonica, Clavispora lusitaniae, Acyrthosiphon pisum, Tetraodon nigroviridis and Xenopus tropicalis. Phylogenetic relationship analysis showed the highest sequence identity to a glycoprotein of the red algae Griffithsia japonica (68%) (GenBank number AAM93989). Conserved Domain Database analysis detected an N-terminal carbohydrate recognition domain (CRD), the characteristic of L-lectins, which contained two sugar binding sites and a metal binding site. The secondary structure prediction of GFL showed a beta-sheet structure, connected with turn and coil. The most abundant structural element of GFL was the random coil, while the alpha-helixes were distributed at the N- and C-termini, and 21 beta-sheets were distributed in the CRD. Computer analysis of three-dimensional structure showed a common feature of L-lectins of GFL, which included an overall globular shape that was composed of a beta-sandwich of two anti-parallel beta-sheets, monosaccharide binding sites, were on the top of the structure and in proximity with a metal binding site. Northern blot analysis using a DIG-labelled probe derived from a partial GFL sequence revealed a hybridization signal of (approx.) 1.7 kb consistent with the length of the full-length GFL cDNA identified by RACE. No detectable band was observed from control total RNA extracted from filamentous green algae.
Collapse
Affiliation(s)
- Sukanya Suttisrisung
- Center of Excellence for Shrimp Molecular Biology and Biotechnology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | | | | | | |
Collapse
|
18
|
Bah CSF, Fang EF, Ng TB, Mros S, McConnell M, Bekhit AEDA. Purification and characterization of a rhamnose-binding chinook salmon roe lectin with antiproliferative activity toward tumor cells and nitric oxide-inducing activity toward murine macrophages. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:5720-5728. [PMID: 21456624 DOI: 10.1021/jf2004578] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this study, a rhamnose-binding lectin from the roe of chinook salmon (Oncorhynchus tshawytscha) was purified and characterized, and its biological activities were examined in several model systems. Chinook salmon roe lectin had a molecular mass of 30 kDa and agglutinated rabbit and bovine erythrocytes. The hemagglutination activity of the lectin was not affected by metal ions. The lectin was stable up to 70 °C and between pH 4 and pH 11. Chinook salmon roe lectin did not exert antifungal activity toward the fungal species tested and did not exhibit mitogenic response toward mouse splenocytes up to a concentration of 5 mg/mL. The lectin had selective antiproliferative activity toward human breast cancer MCF-7 cells and hepatoma Hep G2 cells. It also induced the production of nitric oxide from mouse peritoneal macrophages. This is the first report that demonstrates these biological activities from chinook salmon roe lectin.
Collapse
|
19
|
de Oliveira CFR, Luz LA, Paiva PMG, Coelho LCBB, Marangoni S, Macedo MLR. Evaluation of seed coagulant Moringa oleifera lectin (cMoL) as a bioinsecticidal tool with potential for the control of insects. Process Biochem 2011. [DOI: 10.1016/j.procbio.2010.09.025] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
20
|
Lam SK, Ng TB. Lectins: production and practical applications. Appl Microbiol Biotechnol 2010; 89:45-55. [PMID: 20890754 PMCID: PMC3016214 DOI: 10.1007/s00253-010-2892-9] [Citation(s) in RCA: 172] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Revised: 09/12/2010] [Accepted: 09/12/2010] [Indexed: 11/26/2022]
Abstract
Lectins are proteins found in a diversity of organisms. They possess the ability to agglutinate erythrocytes with known carbohydrate specificity since they have at least one non-catalytic domain that binds reversibly to specific monosaccharides or oligosaccharides. This articles aims to review the production and practical applications of lectins. Lectins are isolated from their natural sources by chromatographic procedures or produced by recombinant DNA technology. The yields of animal lectins are usually low compared with the yields of plant lectins such as legume lectins. Lectins manifest a diversity of activities including antitumor, immunomodulatory, antifungal, HIV-1 reverse transcriptase inhibitory, and anti-insect activities, which may find practical applications. A small number of lectins demonstrate antibacterial and anti-nematode activities.
Collapse
Affiliation(s)
- Sze Kwan Lam
- Division of Respiratory Medicine, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Tzi Bun Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| |
Collapse
|
21
|
Haemagglutinin of the antarctic seaweed Georgiella confluens (Reinsch) Kylin: isolation and partial characterization. Polar Biol 2010. [DOI: 10.1007/s00300-010-0818-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
22
|
Coelho MB, Macedo MLR, Marangoni S, Silva DSD, Cesarino I, Mazzafera P. Purification of legumin-like proteins from Coffea arabica and Coffea racemosa seeds and their insecticidal properties toward cowpea weevil ( Callosobruchus maculatus ) (Coleoptera: Bruchidae). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:3050-3055. [PMID: 20141142 DOI: 10.1021/jf9037216] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Legumin-like proteins from seeds of Coffea arabica (CaL-1 and CaL-2) and Coffea racemosa (CrL-1 and CrL-2) were characterized and isolated by gel filtration and reverse-phase chromatography. The insecticidal properties of the purified proteins were tested against Callosobruchus maculatus using artificial diets. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analyses indicated that CaL-1 is composed of two subunits of 33 and 24 kDa, while CaL-2, CrL-1, and CrL-2 were monomeric with a single band of 14 kDa. The LD(50) values were 0.5% (w/w) for CaL-1 and 0.3% (w/w) for CaL-2, CrL-1, and CrL-2. ED(50) at 0.3% was assessed for all protein concentrations. The legumin-like proteins were not digested by midgut homogenates of C. maculatus until 8 h of incubation. CaL-1 and CaL-2 ( C. arabica ) and CrL-1 and CrL-2 ( C. racemosa ) are chitin-binding proteins, and their insecticidal properties toward C. maculatus larvae might be related to their capacity to bind chitin present in the larval gut and their associated low digestibility.
Collapse
Affiliation(s)
- Mirela Batista Coelho
- Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, CP 6109, 13083-970, Campinas, SP, Brazil
| | | | | | | | | | | |
Collapse
|
23
|
Isolation and characterization of a novel fucose-binding lectin from the gill of bighead carp (Aristichthys nobilis). Vet Immunol Immunopathol 2010; 133:154-64. [DOI: 10.1016/j.vetimm.2009.07.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2009] [Revised: 07/19/2009] [Accepted: 07/27/2009] [Indexed: 11/23/2022]
|
24
|
Silva LMCM, Lima V, Holanda ML, Pinheiro PG, Rodrigues JAG, Lima MEP, Benevides NMB. Antinociceptive and Anti-inflammatory Activities of Lectin from Marine Red Alga Pterocladiella capillacea. Biol Pharm Bull 2010; 33:830-5. [DOI: 10.1248/bpb.33.830] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Vilma Lima
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará
| | | | - Paula Goes Pinheiro
- Departamento de Odontologia, Faculdade de Farmácia, Enfermagem e Odotonlogia, Universidade Federal do Ceará
| | | | | | - Norma Maria Barros Benevides
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará
- Rede Nordeste de Biotecnologia, Universidade Estadual do Ceará
| |
Collapse
|
25
|
Sá RA, Santos NDDL, da Silva CSB, Napoleão TH, Gomes FS, Cavada BS, Coelho LCBB, Navarro DMDAF, Bieber LW, Paiva PMG. Larvicidal activity of lectins from Myracrodruon urundeuva on Aedes aegypti. Comp Biochem Physiol C Toxicol Pharmacol 2009; 149:300-6. [PMID: 18761426 DOI: 10.1016/j.cbpc.2008.08.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2008] [Revised: 08/08/2008] [Accepted: 08/10/2008] [Indexed: 11/28/2022]
Abstract
Aedes aegypti transmits etiologic agents of yellow fever and dengue. Vaccine for dengue virus is not available and vector control is essential to minimize dengue incidence. This report deals with the larvicidal activity of lectins isolated from Myracrodruon urundeuva bark (MuBL) and heartwood (MuHL). The lectins were isolated by ammonium sulphate treatment of crude extracts followed by chromatography on chitin. MuBL and MuHL were evaluated by electrophoresis under native (PAGE) and denaturing conditions (SDS-PAGE). Carbohydrate specificity of lectins was evaluated by hemagglutinating activity (HA) inhibition assay using N-acetyl-d-glucosamine and by affinity chromatography on N-acetyl-D-glucosamine immobilized in agarose gel. Larvicidal activity against A. aegypti was investigated with the extracts, salt fractions and isolated lectins. MuBL and MuHL were characterized by PAGE as basic proteins of molecular masses of 14.0 and 14.4 kDa, respectively. The interaction of lectins with N-acetylglucosamine was detected by inhibition of HA by monosaccharide and lectin adsorptions on N-acetyl-D-glucosamine matrix. All M. urundeuva preparations promoted larvae mortality. LC16, LC50 and LC84 values of 0.077, 0.125, 0.173 for MuBL and 0.03, 0.04 and 0.05 mg/mL for MuHL were obtained. To our knowledge this is the first report of larvicidal activity of lectins against A. aegypti.
Collapse
Affiliation(s)
- Roberto Araújo Sá
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Coelho MB, Marangoni S, Macedo MLR. Insecticidal action of Annona coriacea lectin against the flour moth Anagasta kuehniella and the rice moth Corcyra cephalonica (Lepidoptera: Pyralidae). Comp Biochem Physiol C Toxicol Pharmacol 2007; 146:406-14. [PMID: 17561444 DOI: 10.1016/j.cbpc.2007.05.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2006] [Revised: 04/27/2007] [Accepted: 05/01/2007] [Indexed: 11/23/2022]
Abstract
Annona coriacea lectin (ACLEC) was tested for insecticidal activity against larvae of two pyralid moths, Anagasta kuehniella and Corcyra cephalonica. ACLEC produced approximately 50% mortality and mass loss in A. kuehniella larvae when incorporated into an artificial diet at levels of 1.5% and 1.0% (w/w), respectively. In contrast, the inclusion of up to 2% ACLEC in the diet did not significantly decrease the survival or weight of C. cephalonica larvae. The nutritional indices for A. kuehniella and C. cephalonica suggested that ACLEC had a multi-mechanistic mode of action and was an antifeedant for both insects. The toxicity in A. kuehniella apparently resulted from a change in the gut membrane environment and consequent disruption of digestive enzyme recycling mechanisms. Affinity chromatography showed that ACLEC bound to midgut proteins of A. kuehniella and C. cephalonica. However, the 14 kDa subunit of ACLEC was not digested by midgut proteases of A. kuehniella, but was degraded by the corresponding C. cephalonica proteases within a few hours. These findings suggest the possibility of using ACLEC to engineer crop plants.
Collapse
Affiliation(s)
- Mirela B Coelho
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | | | | |
Collapse
|
27
|
Macedo MLR, das Graças Machado Freire M, da Silva MBR, Coelho LCBB. Insecticidal action of Bauhinia monandra leaf lectin (BmoLL) against Anagasta kuehniella (Lepidoptera: Pyralidae), Zabrotes subfasciatus and Callosobruchus maculatus (Coleoptera: Bruchidae). Comp Biochem Physiol A Mol Integr Physiol 2007; 146:486-98. [PMID: 16488638 DOI: 10.1016/j.cbpa.2006.01.020] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2005] [Revised: 01/02/2006] [Accepted: 01/10/2006] [Indexed: 11/29/2022]
Abstract
Bruchid beetle larvae cause major losses in grain legume crops throughout the world. Some bruchid species, such as the cowpea weevil (Callosobruchus maculatus) and the Mexican bean weevil (Zabrotes subfasciatus), are pests that damage stored seeds. The Mediterranean flour moth (Anagasta kuehniella) is of major economic importance as a flour and grain feeder; it is often a severe pest in flour mills. Plant lectins have been implicated as antibiosis factors against insects. Bauhinia monandra leaf lectin (BmoLL) was tested for anti-insect activity against C. maculatus, Z. subfasciatus and A. kuehniella larvae. BmoLL produced ca. 50% mortality to Z. subfaciatus and C. maculatus when incorporated into an artificial diet at a level of 0.5% and 0.3% (w/w), respectively. BmoLL up to 1% did not significantly decrease the survival of A. kuehniella larvae, but produced a decrease of 40% in weight. Affinity chromatography showed that BmoLL bound to midgut proteins of the insect C. maculatus. 33 kDa subunit BmoLL was not digested by midgut preparations of these bruchids. BmoLL-fed C. maculatus larvae increased the digestion of potato starch by 25% compared with the control. The transformation of the genes coding for this lectin could be useful in the development of insect resistance in important agricultural crops.
Collapse
Affiliation(s)
- Maria Lígia Rodrigues Macedo
- Laboratório de Purificação de Proteínas e suas Funções Biológicas, Departamento de Ciências Naturais, CPTL, Universidade Federal do Mato Grosso do Sul (UFMS), Avenida Capitão Olinto Mancini, Três Lagoas, MS, Brazil.
| | | | | | | |
Collapse
|