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Wang P, Hai D, Li Q, Xu X, Xie J, Tang L. Characterization of a novel hypovirus isolated from the phytopathogenic fungus Colletotrichum camelliae. Arch Virol 2023; 168:250. [PMID: 37691052 DOI: 10.1007/s00705-023-05878-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/18/2023] [Indexed: 09/12/2023]
Abstract
Some members of genus Colletotrichum are important plant pathogens. Here, we report a novel positive single-stranded RNA virus, Colletotrichum camelliae hypovirus 1 (CcHV1), from strain GXNN11-2 of Colletotrichum camelliae. The complete genome of CcHV1 is 9907 nucleotides (nt) in length and contains a single large open reading frame (ORF) from nt 352 to 9006. This ORF encodes a polyprotein with four conserved domains, namely UDP-glycosyltransferase, RNA-dependent RNA polymerase (RdRp), peptidase, and DEAD-like helicase. The CcHV1 polyprotein shares the highest similarity with Fusarium concentricum hypovirus 1. Phylogenetic analysis indicated that CcHV1 clustered with members of the genus Betahypovirus within the family Hypoviridae. This is the first report of a hypovirus in a member of the genus Colletotrichum.
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Affiliation(s)
- Pushuang Wang
- National Key Laboratory of Agricultural Microbiology, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Du Hai
- National Key Laboratory of Agricultural Microbiology, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Qili Li
- Institute of Plant Protection, Guangxi Academy of Agricultural Science, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Nanning, 530007, Guangxi, China
| | | | - Jiatao Xie
- National Key Laboratory of Agricultural Microbiology, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Lihua Tang
- Institute of Plant Protection, Guangxi Academy of Agricultural Science, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Nanning, 530007, Guangxi, China.
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2
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Fu Y, Wang T, Zhou S, Zhou J, Zhao Y, Chen D, Zheng L. A novel narnavirus isolated from Colletotrichum curcumae strain 780-2T. Arch Virol 2023; 168:226. [PMID: 37561160 DOI: 10.1007/s00705-023-05847-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 07/09/2023] [Indexed: 08/11/2023]
Abstract
The complete genome of a novel mycovirus, Colletotrichum curcumae narnavirus 1 (CcNV1), derived from the phytopathogenic fungus Colletotrichum curcumae strain 780-2T, was sequenced and analyzed. The full sequence of CcNV1 is 3,374 nucleotides in length and contains a single large open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp) of 1,087 amino acids with a molecular mass of 124.2 kDa that shares the closest similarity with that of Monilinia narnavirus H (53.02% identity). RdRp phylogeny analysis showed that CcNV1 is a new member of the proposed genus "Betanarnavirus" within the family Narnaviridae. This is the first report of a novel narnavirus infecting the phytopathogenic fungus C. curcumae, the causal agent of leaf blight of Curcuma wenyujin.
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Affiliation(s)
- Yujia Fu
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, 572025, Sanya, China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, School of Plant Protection, Ministry of Education, Hainan University, 570228, Haikou, Hainan, China
| | - Tian Wang
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, 572025, Sanya, China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, School of Plant Protection, Ministry of Education, Hainan University, 570228, Haikou, Hainan, China
| | - Siyu Zhou
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, 572025, Sanya, China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, School of Plant Protection, Ministry of Education, Hainan University, 570228, Haikou, Hainan, China
| | - Jingyi Zhou
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, 572025, Sanya, China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, School of Plant Protection, Ministry of Education, Hainan University, 570228, Haikou, Hainan, China
| | - Yang Zhao
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, 572025, Sanya, China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, School of Plant Protection, Ministry of Education, Hainan University, 570228, Haikou, Hainan, China
| | - Daipeng Chen
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, 572025, Sanya, China
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, School of Plant Protection, Ministry of Education, Hainan University, 570228, Haikou, Hainan, China
| | - Li Zheng
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, 572025, Sanya, China.
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, School of Plant Protection, Ministry of Education, Hainan University, 570228, Haikou, Hainan, China.
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Gonçalves HV, Oki Y, Bordignon L, Ferreira MC, Dos Santos JE, Tameirão LBS, Santos FR, Kalapothakis E, Fernandes GW. Endophytic fungus diversity in soybean plants submitted to conditions of elevated atmospheric CO 2 and temperature. Can J Microbiol 2021; 67:290-300. [PMID: 33031708 DOI: 10.1139/cjm-2020-0261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Global climatic changes can have drastic impacts on plant species, including severe consequences for the agricultural species productivity. Many of these species present important mutualisms with endophytic fungi that positively influence their performance. The present study evaluated whether the increases in CO2 and temperature predicted for the year 2100 may cause changes in foliar carbon (C) and nitrogen (N) concentrations in soybean (Glycine max) and, consequently, the interactions with its endophytic fungi. The effects of elevated CO2 and temperature were evaluated in four treatments in open-top chambers: (i) control, (ii) increased temperature, (iii) increased CO2, and (iv) increased CO2 and temperature. Increased atmospheric CO2 resulted in decreased foliar N concentration, while increased temperature increased it. A total of 16 taxa of endophytic fungi were identified based on sequencing internal transcribed spacer regions of rRNA subunits. Increased atmospheric CO2 and temperature were observed to potentially modify the endophytic mycobiota of soybean plants. The results suggest that the fungi species substitution is a consequence of changes in foliar N concentration and C/N ratio. Predicted climatic changes shall affect the relationships between plant and endophytes, which in turn, will affect the performance and resistance of soybean, one of the most important crops in the world.
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Affiliation(s)
- Huberman Valadares Gonçalves
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Yumi Oki
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | | | - Mariana Costa Ferreira
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - José Eustáquio Dos Santos
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Lucas Barbosa Souza Tameirão
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Fabrício Rodrigues Santos
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Evanguedes Kalapothakis
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Geraldo Wilson Fernandes
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
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Identification and dereplication of endophytic Colletotrichum strains by MALDI TOF mass spectrometry and molecular networking. Sci Rep 2020; 10:19788. [PMID: 33188275 PMCID: PMC7666161 DOI: 10.1038/s41598-020-74852-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/29/2020] [Indexed: 01/09/2023] Open
Abstract
The chemical diversity of biologically active fungal strains from 42 Colletotrichum, isolated from leaves of the tropical palm species Astrocaryum sciophilum collected in pristine forests of French Guiana, was investigated. The collection was first classified based on protein fingerprints acquired by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) correlated with cytotoxicity. Liquid chromatography coupled to high-resolution tandem mass spectrometry (LC-HRMS/MS) data from ethyl acetate extracts were acquired and processed to generate a massive molecular network (MN) using the MetGem software. From five Colletotrichum strains producing cytotoxic specialized metabolites, we predicted the occurrence of peptide and cytochalasin analogues in four of them by MN, including a similar ion clusters in the MN algorithm provided by MetGem software. Chemoinformatics predictions were fully confirmed after isolation of three pentacyclopeptides (cyclo(Phe-Leu-Leu-Leu-Val), cyclo(Phe-Leu-Leu-Leu-Leu) and cyclo(Phe-Leu-Leu-Leu-Ile)) and two cytochalasins (cytochalasin C and cytochalasin D) exhibiting cytotoxicity at the micromolar concentration. Finally, the chemical study of the last active cytotoxic strain BSNB-0583 led to the isolation of four colletamides bearing an identical decadienamide chain.
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Nawaz HH, Anam U, Rajaofera MJN, He Q, Liu W, Miao W. Development of SNP-Based Markers to Identify Colletotrichum gossypii in Upland Cotton. PLANT DISEASE 2018; 102:1426-1433. [PMID: 30673579 DOI: 10.1094/pdis-10-17-1672-re] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Colletotrichum gossypii is a causal agent of anthracnose in upland cotton (Gossypii hirsutum). C. gossypii belongs to the C. gloeosporioides species complex. However, the high level of genetic similarity among the species within the C. gloeosporioides species complex makes the development of a diagnostic assay for C. gossypii challenging. Furthermore, the spore size and cultural characteristics of C. gossypii from different geographical areas can vary. In this study, we examined the morphological variance, growth pattern, and pathogenicity of C. gossypii and developed a molecular diagnostic assay to detect C. gossypii in cotton plants from different regions of China. To overcome any ambiguity in morphological and pathogenic characteristics, a set of primers targeting the β-tubulin (TUB) gene of C. gossypii was designed. Single-nucleotide polymorphisms (SNP) were used to identify C. gossypii at the species level using DNA sequence alignments of the TUB gene. The SPSCG/F and SPSCG/R primer pair only amplified C. gossypii, and was able to amplify C. gossypii in mixtures of other Colletotrichum spp., even when DNA concentrations were up to 10 times lower than that of the other species. This is the first report of the development of SNP-based markers for the specific identification of C. gossypii.
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Affiliation(s)
- Hafiz Husnain Nawaz
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Plant Protection, Hainan University, Haikou, Hainan Province, 570228, P.R. China
| | - Usmani Anam
- Chinese Academy of Sciences, South China Botanical Garden, Tianhi District, Guangzhou, 510000, Guangdong Province, P.R. China
| | - M J Nelly Rajaofera
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Plant Protection, Hainan University
| | - Qiguang He
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Plant Protection, Hainan University
| | - Wenbo Liu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Plant Protection, Hainan University
| | - Weiguo Miao
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Plant Protection, Hainan University
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Song JH, Lee C, Lee D, Kim S, Bang S, Shin MS, Lee J, Kang KS, Shim SH. Neuroprotective Compound from an Endophytic Fungus, Colletotrichum sp. JS-0367. JOURNAL OF NATURAL PRODUCTS 2018; 81:1411-1416. [PMID: 29790746 DOI: 10.1021/acs.jnatprod.8b00033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Colletotrichum sp. JS-0367 was isolated from Morus alba (mulberry), identified, and cultured on a large scale for chemical investigation. One new anthraquinone (1) and three known anthraquinones (2-4) were isolated and identified using spectroscopic methods including 1D/2D-NMR and HRESIMS. Although the neuroprotective effects of some anthraquinones have been reported, the biological activities of the four anthraquinones isolated in this study have not been reported. Therefore, the neuroprotective effects of these compounds were determined against murine hippocampal HT22 cell death induced by glutamate. Compound 4, evariquinone, showed strong protective effects against HT22 cell death induced by glutamate by the inhibition of intracellular ROS accumulation and Ca2+ influx triggered by glutamate. Immunoblot analysis revealed that compound 4 reduced the phosphorylation of MAPKs (JNK, ERK1/2, and p38) induced by glutamate. Furthermore, compound 4 strongly attenuated glutamate-mediated apoptotic cell death.
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Affiliation(s)
- Ji Hoon Song
- Department of Medicine , University of Ulsan College of Medicine , Seoul 05505 , South Korea
| | - Changyeol Lee
- College of Pharmacy , Duksung Women's University , Seoul 01369 , South Korea
| | - Dahae Lee
- College of Korean Medicine , Gachon University , Seongnam 13120 , South Korea
| | - Soonok Kim
- National Institute of Biological Resources , Incheon 22689 , South Korea
| | - Sunghee Bang
- College of Pharmacy , Duksung Women's University , Seoul 01369 , South Korea
| | - Myoung-Sook Shin
- College of Korean Medicine , Gachon University , Seongnam 13120 , South Korea
| | - Jun Lee
- Herbal Medicine Research Division , Korea Institute of Oriental Medicine , Daejeon 34054 , Republic of Korea
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia , Korea Institute of Science and Technology , Seoul 02792 , South Korea
| | - Ki Sung Kang
- College of Korean Medicine , Gachon University , Seongnam 13120 , South Korea
| | - Sang Hee Shim
- College of Pharmacy , Duksung Women's University , Seoul 01369 , South Korea
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Nawaz HH, Nelly Rajaofera MJ, He Q, Anam U, Lin C, Miao W. Evaluation of antifungal metabolites activity from bacillus licheniformis OE-04 against Colletotrichum gossypii. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2018; 146:33-42. [PMID: 29626990 DOI: 10.1016/j.pestbp.2018.02.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/31/2018] [Accepted: 02/19/2018] [Indexed: 06/08/2023]
Abstract
Anthracnose disease in the cotton plant caused by fungal pathogen Colletotrichum gossypii. It is supposed to be most critical diseases in the cotton crop as it causes infection and leads to complete damaging of the cotton crop by infecting the leaves, stems, and bolls in the field. The disease control is challenging due to the absence of an effective fungicide without damaging the farmer health and environment. So the series of experiments were designed to assess the antagonistic activity of biosurfactant released by strain Bacillus licheniformis OE-04 against the anthracnose causing agent in cotton and this strain was screened out from forty eight strain of rhizobacteria. We also estimated the heat stability and pH range and toxicity of biosurfactant produced by strain 0E-04. The results showed that biosurfactant has maximum antifungal activity against C. gossypii. In vitro study concluded that the biosurfactant can reduce fungal activity by inhibiting the spore germination of C. gossypii. Moreover, the biosurfactant also has wide pH and temperature range. We observed Antifungal activity of biosurfactant at 5 to 10 pH range and temperature range was also wide from room temperature to 100 °C. We also observed the toxicity of biosurfactant produced by Bacillus licheniformis against zebra fish (Danio rerio). We were noticed that biosurfactant have least harmful effect with maximum concentration. The study confirmed that biosurfactant of Bacillus licheniformis have high pH and heat stability range with least harmful effects so it can be a good replacement of chemical pesticides for cotton anthracnose control.
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Affiliation(s)
- Hafiz Husnain Nawaz
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Environment and Plant Protection, Hainan University, Haikou, Hainan Province 570228, PR China
| | - M J Nelly Rajaofera
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Environment and Plant Protection, Hainan University, Haikou, Hainan Province 570228, PR China
| | - Qiguang He
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Environment and Plant Protection, Hainan University, Haikou, Hainan Province 570228, PR China
| | - Usmani Anam
- Chinese Academy of Sciences, South China Botanical Garden, Tianhi District, Guangzhou 510000, Guangdong Province, PR China
| | - Chunhua Lin
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Environment and Plant Protection, Hainan University, Haikou, Hainan Province 570228, PR China
| | - Weiguo Miao
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Environment and Plant Protection, Hainan University, Haikou, Hainan Province 570228, PR China.
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Endophytic Fungi and Bioactive Metabolites Production: An Update. Microb Biotechnol 2018. [DOI: 10.1007/978-981-10-7140-9_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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De Silva DD, Crous PW, Ades PK, Hyde KD, Taylor PW. Life styles of Colletotrichum species and implications for plant biosecurity. FUNGAL BIOL REV 2017. [DOI: 10.1016/j.fbr.2017.05.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Saxena A, Raghuwanshi R, Gupta VK, Singh HB. Chilli Anthracnose: The Epidemiology and Management. Front Microbiol 2016; 7:1527. [PMID: 27746765 PMCID: PMC5044472 DOI: 10.3389/fmicb.2016.01527] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 09/12/2016] [Indexed: 11/24/2022] Open
Abstract
Indian cuisine is renowned and celebrated throughout the world for its spicy treat to the tongue. The flavor and aroma of the food generated due to the use of spices creates an indelible experience. Among the commonly utilized spices to stimulate the taste buds in Indian food, whole or powdered chilli constitutes an inevitable position. Besides being a vital ingredient of of Indian food, chilli occupy an important position as an economic commodity, a major share in Indian economy. Chilli also has uncountable benefits to human health. Fresh green chilli fruits contain more Vitamin C than found in citrus fruits, while red chilli fruits have more Vitamin A content than as found in carrots. The active component of the spice, Capsaicin possesses the antioxidant, anti-mutagenic, anti-carcinogenic and immunosuppressive activities having ability to inhibit bacterial growth and platelet aggregation. Though introduced by the Portuguese in the Seventeenth century, India has been one of the major producers and exporters of this crop. During 2010-2011, India was the leading exporter and producer of chilli in the world, but recently due to a decline in chilli production, it stands at third position in terms of its production. The decline in chilli production has been attributed to the diseases linked with crop like anthracnose or fruit rot causing the major share of crop loss. The disease causes severe damage to both mature fruits in the field as well as during their storage under favorable conditions, which amplifies the loss in yield and overall production of the crop. This review gives an account of the loss in production and yield procured in chili cultivation due to anthracnose disease in Indian sub-continent, with emphasis given to the sustainable management strategies against the conventionally recommended control for the disease. Also, the review highlights the various pathogenic species of Colletotrichum spp, the causal agent of the disease, associated with the host crop in the country. The information in the review will prove of immense importance for the groups targeting the problem, for giving a collective information on various aspects of the epidemiology and management of the disease.
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Affiliation(s)
- Amrita Saxena
- Department of Botany, Banaras Hindu UniversityVaranasi, India
| | - Richa Raghuwanshi
- Department of Botany, Mahila Mahavidyalaya, Banaras Hindu UniversityVaranasi, India
| | - Vijai Kumar Gupta
- Molecular Glycobiotechnology Group, Discipline of Biochemistry, National University of IrelandGalway, Ireland
| | - Harikesh B. Singh
- Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu UniversityVaranasi, India
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Genetic diversity of endophytic fungi from Coffea arabica cv. IAPAR-59 in organic crops. ANN MICROBIOL 2015. [DOI: 10.1007/s13213-015-1168-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Afanador-Kafuri L, González A, Gañán L, Mejía JF, Cardona N, Alvarez E. Characterization of the Colletotrichum Species Causing Anthracnose in Andean Blackberry in Colombia. PLANT DISEASE 2014; 98:1503-1513. [PMID: 30699787 DOI: 10.1094/pdis-07-13-0752-re] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Since 1992, anthracnose of Andean blackberry (Rubus glaucus) has generated losses as high as 40% for farmers in Colombia. In this study, our goal was to characterize 240 Colletotrichum isolates from Andean blackberry in eight areas of Colombia. These isolates were evaluated according to morphological characteristics, sensitivity to benomyl, pathogenicity, and genetic variability. Identification of the genus Colletotrichum was achieved by using species complex-specific polymerase chain reaction primers. A multilocus phylogeny approach was used to identify isolates to the species level with sequences from the ribosomal internal transcribed spacer region and partial sequences of the actin, β-tubulin 2, calmodulin, chitin synthase 1, glutamine synthetase, and glyceraldehyde-3-phosphate dehydrogenase genes. Most of the isolates were identified as Colletotrichum gloeosporioides sensu lato, were associated with the Castilla ecotype, showed high sensitivity to benomyl, and were highly aggressive. Isolates identified as C. acutatum sensu lato were found mainly on the Thornless ecotype, were highly resistant to benomyl, and showed intermediate aggressiveness. Only three isolates were identified as C. boninense sensu lato. The species identified included C. fructicola, C. kahawae subsp. ciggaro, C. godetiae, C. karstii, C. brassicicola, and undetermined Colletotrichum spp. This study is the first report of these species associated with anthracnose in Andean blackberry.
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Affiliation(s)
- Lucía Afanador-Kafuri
- Faculty of Agricultural Sciences, Universidad Nacional de Colombia-Medellín, A. A. 1779, Medellín, Colombia
| | - Alonso González
- Tropical Fruit Project, International Center for Tropical Agriculture (CIAT), A. A. 6713, Cali, Colombia
| | - Lederson Gañán
- CIAT and Faculty of Agricultural Sciences, Universidad de Caldas, A. A. 275, Manizales, Colombia
| | | | - Nadya Cardona
- Universidad de Antioquia, A. A. 1226, Medellín, Colombia
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Chithra S, Jasim B, Sachidanandan P, Jyothis M, Radhakrishnan EK. Piperine production by endophytic fungus Colletotrichum gloeosporioides isolated from Piper nigrum. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2014; 21:534-40. [PMID: 24268806 DOI: 10.1016/j.phymed.2013.10.020] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 09/19/2013] [Accepted: 10/17/2013] [Indexed: 05/13/2023]
Abstract
Many endophytic fungi have been reported with the biosynthetic potential to produce same or similar metabolites present in host plants. The adaptations that might have acquired by these fungi as a result of the long-term association with their host plants can be the possible basis of their biosynthetic potential. The bioactive compounds originated from endophytes are currently explored for their potential applications in pharmaceutical, agriculture and food industries. Piper nigrum, a plant of the Piperaceae is very remarkable because of the presence of the alkaloid piperine. Piperine has been reported to have broad bioactive properties ranging from antimicrobial, antidepressant, anti-inflammatory, antioxidative to anticancer activities. Interestingly, piperine also plays a vital role in increasing the bioavailability of many drugs which again is a promising property. The current study was carried out to identify piperine producing endophytic fungus from Piper nigrum L. By screening various endophytic fungi, the isolate which was identified as member of Colletotrichum gloeosporioides was found to have the ability to form piperine and was confirmed by HPLC and LCMS. Considering the broad bioactive potential of piperine, the piperine producing fungi identified in the study can expect to have much industrial potential.
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Affiliation(s)
- S Chithra
- School of Biosciences, Mahatma Gandhi University, Kottayam, Kerala, India
| | - B Jasim
- School of Biosciences, Mahatma Gandhi University, Kottayam, Kerala, India
| | | | - M Jyothis
- School of Biosciences, Mahatma Gandhi University, Kottayam, Kerala, India
| | - E K Radhakrishnan
- School of Biosciences, Mahatma Gandhi University, Kottayam, Kerala, India.
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Manamgoda DS, Udayanga D, Cai L, Chukeatirote E, Hyde KD. Endophytic Colletotrichum from tropical grasses with a new species C. endophytica. FUNGAL DIVERS 2013. [DOI: 10.1007/s13225-013-0256-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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