201
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Shen Y, Delai C, Liu T, Chen W, Li G, Gao H, Gao L. Analysis of microbial communities in wheat, alfalfa, and oat crops after Tilletia laevis Kühn infection. Front Microbiol 2024; 15:1343946. [PMID: 39161602 PMCID: PMC11330837 DOI: 10.3389/fmicb.2024.1343946] [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: 11/24/2023] [Accepted: 06/17/2024] [Indexed: 08/21/2024] Open
Abstract
Common bunt caused by Tilletia laevis Kühn is one of the most serious fungal diseases of wheat. The root-microbial associations play key roles in protecting plants against biotic and abiotic factors. Managing these associations offers a platform for improving the sustainability and efficiency of agriculture production. Here, by using high throughput sequencing, we aimed to identify the bacterial and fungal associations in wheat, alfalfa, and oat crops cultivated in different years in the Gansu province of China. Soil samples (0-6 cm below the surface) from infected wheat by T. laevis had significantly more bacterial and fungal richness than control samples as per the Chao1 analysis. We found some dominant fungi and bacterial phyla in infected wheat by T. laevis, such as Proteobacteria, Acidobacteria, Actinobacteria, Chloroflexi, Ascomycota, Basidiomycota, and Mortierello mycota. We also analyzed the chemical and enzymatic properties of soil samples after T. laevis inoculation. The total nitrogen, total kalium (TK), ammonium nitrogen, available kalium, organic carbon, invertase, phosphatase, and catalase were more in T. laevis-infected samples as compared to the control samples, while pH, total phosphorus, nitrate nitrogen, available phosphorus, and urease were more in control samples compared to T. laevis-infected samples. The results of this study will contribute to the control of wheat common bunt by candidate antagonistic microorganisms and adverse properties of soil.
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Affiliation(s)
- Yuyang Shen
- Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis, Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Ministry of P. R. China, Xinjiang, China
| | - Chen Delai
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Plant Protection, Gansu Agricultural University, Lanzhou, China
| | - Taiguo Liu
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wanquan Chen
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Guangkuo Li
- Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis, Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Ministry of P. R. China, Xinjiang, China
| | - Haifeng Gao
- Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis, Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Ministry of P. R. China, Xinjiang, China
| | - Li Gao
- Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis, Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Ministry of P. R. China, Xinjiang, China
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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202
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Ma K, Li Y, Song W, Zhou J, Liu X, Wang M, Gong X, Wang L, Tu Q. Disentangling drivers of mudflat intertidal DOM chemodiversity using ecological models. Nat Commun 2024; 15:6620. [PMID: 39103321 DOI: 10.1038/s41467-024-50841-9] [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: 10/19/2023] [Accepted: 07/23/2024] [Indexed: 08/07/2024] Open
Abstract
Microorganisms consume and transform dissolved organic matter (DOM) into various forms. However, it remains unclear whether the ecological patterns and drivers of DOM chemodiversity are analogous to those of microbial communities. Here, a large-scale investigation is conducted along the Chinese coasts to resolve the intrinsic linkages among the complex intertidal DOM pools, microbial communities and environmental heterogeneity. The abundance of DOM molecular formulae best fits log-normal distribution and follows Taylor's Law. Distance-decay relationships are observed for labile molecular formulae, while latitudinal diversity gradients are noted for recalcitrant molecular formulae. Latitudinal patterns are also observed for DOM molecular features. Negative cohesion, bacterial diversity, and molecular traits are the main drivers of DOM chemodiversity. Stochasticity analyses demonstrate that determinism dominantly shapes the DOM compositional variations. This study unveils the intrinsic mechanisms underlying the intertidal DOM chemodiversity and microbial communities from ecological perspectives, deepening our understanding of microbially driven chemical ecology.
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Affiliation(s)
- Kai Ma
- Institute of Marine Science and Technology, Shandong University, Qingdao, China
| | - Yueyue Li
- Institute of Marine Science and Technology, Shandong University, Qingdao, China
| | - Wen Song
- Institute of Marine Science and Technology, Shandong University, Qingdao, China
| | - Jiayin Zhou
- Institute of Marine Science and Technology, Shandong University, Qingdao, China
| | - Xia Liu
- Institute of Marine Science and Technology, Shandong University, Qingdao, China
| | - Mengqi Wang
- Institute of Marine Science and Technology, Shandong University, Qingdao, China
| | - Xiaofan Gong
- Institute of Marine Science and Technology, Shandong University, Qingdao, China
| | - Linlin Wang
- Institute of Marine Science and Technology, Shandong University, Qingdao, China
| | - Qichao Tu
- Institute of Marine Science and Technology, Shandong University, Qingdao, China.
- Qingdao Key Laboratory of Ocean Carbon Sequestration and Negative Emission Technology, Shandong University, Qingdao, China.
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203
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Gil-Ordóñez A, Pardo JM, Sheat S, Xaiyavong K, Leiva AM, Arinaitwe W, Winter S, Newby J, Cuellar WJ. Isolation, genome analysis and tissue localization of Ceratobasidium theobromae, a new encounter pathogen of cassava in Southeast Asia. Sci Rep 2024; 14:18139. [PMID: 39103398 PMCID: PMC11300614 DOI: 10.1038/s41598-024-69061-8] [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: 03/26/2024] [Accepted: 07/31/2024] [Indexed: 08/07/2024] Open
Abstract
In Southeast Asia (SEA) fastidious fungi of the Ceratobasidium genus are associated with proliferation of sprouts and vascular necrosis in cacao and cassava, crops that were introduced from the tropical Americas to this region. Here, we report the isolation and in vitro culture of a Ceratobasidium sp. isolated from cassava with symptoms of witches' broom disease (CWBD), a devastating disease of this crop in SEA. The genome characterization using a hybrid assembly strategy identifies the fungus as an isolate of the species C. theobromae, the causal agent of vascular streak dieback of cacao in SEA. Both fungi have a genome size > 31 Mb (G+C content 49%), share > 98% nucleotide identity of the Internal Transcribed Spacer (ITS) and > 94% in genes used for species-level identification. Using RNAscope® we traced the pathogen and confirmed its irregular distribution in the xylem and epidermis along the cassava stem, which explains the obtention of healthy planting material from symptom-free parts of a diseased plant. These results are essential for understanding the epidemiology of CWBD, as a basis for disease management including measures to prevent further spread and minimize the risk of introducing C. theobromae via long-distance movement of cassava materials to Africa and the Americas.
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Affiliation(s)
- Alejandra Gil-Ordóñez
- Cassava Program, Crops for Nutrition and Health, International Center for Tropical Agriculture (CIAT), The Americas Hub, Km 17, Recta Cali-Palmira, 763537, Palmira, Colombia
- Departamento de Biología, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Calle 13 # 100-00, 760032, Cali, Colombia
| | - Juan M Pardo
- Cassava Program, Crops for Nutrition and Health, International Center for Tropical Agriculture (CIAT), The Americas Hub, Km 17, Recta Cali-Palmira, 763537, Palmira, Colombia
| | - Samar Sheat
- Plant Virus Department, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38124, Braunschweig, Germany
| | - Khamla Xaiyavong
- Cassava Program Asia Office, Crops for Nutrition and Health, International Center for Tropical Agriculture (CIAT), P.O. Box 783, Vientiane, Lao PDR
| | - Ana M Leiva
- Cassava Program, Crops for Nutrition and Health, International Center for Tropical Agriculture (CIAT), The Americas Hub, Km 17, Recta Cali-Palmira, 763537, Palmira, Colombia
| | - Warren Arinaitwe
- Cassava Program Asia Office, Crops for Nutrition and Health, International Center for Tropical Agriculture (CIAT), P.O. Box 783, Vientiane, Lao PDR
| | - Stephan Winter
- Plant Virus Department, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38124, Braunschweig, Germany
| | - Jonathan Newby
- Cassava Program Asia Office, Crops for Nutrition and Health, International Center for Tropical Agriculture (CIAT), P.O. Box 783, Vientiane, Lao PDR
| | - Wilmer J Cuellar
- Cassava Program, Crops for Nutrition and Health, International Center for Tropical Agriculture (CIAT), The Americas Hub, Km 17, Recta Cali-Palmira, 763537, Palmira, Colombia.
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204
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Sousa GSM, De Oliveira RS, Souza AB, Monteiro RC, Santo EPTE, Franco Filho LC, Moraes DLO, De Sá SR, Da Silva SHM. Development of PCR-Multiplex Assays for Identification of the Herpotrichiellaceae Family and Agents Causing Chromoblastomycosis. J Fungi (Basel) 2024; 10:548. [PMID: 39194874 DOI: 10.3390/jof10080548] [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: 03/15/2024] [Revised: 06/26/2024] [Accepted: 08/02/2024] [Indexed: 08/29/2024] Open
Abstract
The Herpotrichiellaceae family is an important group of dematiaceous filamentous fungi, associated with a variety of pathogenic fungal species causing chromoblastomycosis (CBM) and phaeohyphomycosis (PHM), both with polymorphic clinical manifestations and worldwide incidence. Currently, the identification of this family and determination of the causative agent is challenging due to the subjectivity of morphological identification methods, necessitating the use of molecular techniques to complement diagnosis. In this context, genetic sequencing of the Internal Transcribed Spacer (ITS) has become the norm due to a lack of alternative molecular tools for identifying these agents. Therefore, this study aimed to develop PCR-Multiplex methodologies to address this gap. Sequences from the ITS and Large Subunit (LSU) of ribosomal DNA were used, and after manual curation and in vitro analyses, primers were synthesized for the identification of the targets. The primers were optimized and validated in vitro, resulting in two PCR-Multiplex methodologies: one for identifying the Herpotrichiellaceae family and the bantiana clade, and another for determining the species Fonsecaea pedrosoi and Fonsecaea monophora. Ultimately, the assays developed in this study aim to complement other identification approaches for these agents, reducing the need for sequencing, improving the management of these infections, and enhancing the accuracy of epidemiological information.
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Affiliation(s)
- Gabriel S M Sousa
- Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém 66075-750, Brazil
- Laboratório de Micoses Superficiais e Sistêmicas, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
| | - Rodrigo S De Oliveira
- Laboratório de Micoses Superficiais e Sistêmicas, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
| | - Alex B Souza
- Laboratório de Micoses Superficiais e Sistêmicas, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
| | - Ruan C Monteiro
- Laboratory of Emerging Fungal Pathogens, Universidade Federal de São Paulo, São Paulo 04023-062, Brazil
| | - Elaine P T E Santo
- Laboratório de Micoses Superficiais e Sistêmicas, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
| | - Luciano C Franco Filho
- Laboratório de Micoses Superficiais e Sistêmicas, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
| | - Denison L O Moraes
- Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém 66075-750, Brazil
- Laboratório de Micoses Superficiais e Sistêmicas, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
| | - Sarah R De Sá
- Laboratório de Micoses Superficiais e Sistêmicas, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
| | - Silvia H M Da Silva
- Laboratório de Micoses Superficiais e Sistêmicas, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil
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205
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Tian WH, Jin Y, Liao YC, Faraj TK, Guo XY, Maharachchikumbura SSN. New and Interesting Pine-Associated Hyphomycetes from China. J Fungi (Basel) 2024; 10:546. [PMID: 39194872 DOI: 10.3390/jof10080546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 07/26/2024] [Accepted: 08/01/2024] [Indexed: 08/29/2024] Open
Abstract
Pine trees play a crucial role in the forests of Sichuan Province, boasting rich species diversity and a lengthy evolutionary history. However, research and investigation on fungi associated with pine trees are insufficient. This study investigated the diversity of hyphomycetes fungi associated with pine trees in Sichuan Province, China. During the survey, we collected five specimens of hyphomycetes from branches and bark of species of Pinus. Five barcodes were selected for study and sequenced, including ITS, SSU, LSU, TEF1, and RPB2. Morphological examination and multi-locus phylogenetic analyses revealed three new species, viz. Catenulostroma pini sp. nov. within Teratosphaeriaceae, Kirschsteiniothelia longisporum sp. nov. within Kirschsteiniotheliaceae, Sporidesmiella sichuanensis sp. nov. within Junewangiaceae, and two known species, Paradictyoarthrinium diffractum and P. hydei within Paradictyoarthriniaceae, which are the new host records from Pinus species. Catenulostroma pini, distinguished from other species in the genus by its unique morphology, has three conidial morphologies: small terminal helicoconidia, scolecoconidia with many septa, and phragmoconidia conidia. Kirschsteiniothelia longisporum has longer spores when compared to the other species in the genus. According to phylogenetic analysis, Sporidesmiella sichuanensis formed an independent clade sister to S. aquatica and S. juncicola, distinguished by differences in conidial size.
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Affiliation(s)
- Wen-Hui Tian
- Center for Informational Biology, College of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yan Jin
- Center for Informational Biology, College of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yue-Chi Liao
- Center for Informational Biology, College of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Turki Kh Faraj
- Department of Soil Science, College of Food and Agriculture Sciences, King Saud University, P.O. Box 145111, Riyadh 11362, Saudi Arabia
| | - Xin-Yong Guo
- College of Life Science, Shihezi University, Shihezi 832000, China
| | - Sajeewa S N Maharachchikumbura
- Center for Informational Biology, College of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
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206
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Liu Y, Qi L, Xu M, Li W, Liu N, He X, Zhang Y. Anti- Agrobacterium tumefactions sesquiterpene derivatives from the marine-derived fungus Trichoderma effusum. Front Microbiol 2024; 15:1446283. [PMID: 39155986 PMCID: PMC11327026 DOI: 10.3389/fmicb.2024.1446283] [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: 06/11/2024] [Accepted: 07/23/2024] [Indexed: 08/20/2024] Open
Abstract
Agrobacterium tumefaciens can harm various fruit trees, leading to significant economic losses in agricultural production. It is urgent to develop new pesticides to effectively treat this bacterial disease. In this study, four new sesquiterpene derivatives, trichoderenes A-D (1-4), along with six known compounds (5-10), were obtained from the marine-derived fungus Trichoderma effusum. The structures of 1-4 were elucidated by extensive spectroscopic analyses, and the calculated ECD, ORD, and NMR methods. Structurally, the hydrogen bond formed between the 1-OH group and the methoxy group enabled 1 to adopt a structure resembling that of resorcylic acid lactones, thereby producing the ECD cotton effect. Compound 3 represents the first example of C12 nor-sesquiterpene skeleton. Compounds 1-10 were tested for their antimicrobial activity against A. tumefactions. Among them, compounds 1-3 and 8-10 exhibited inhibitory activity against A. tumefactions with MIC values of 3.1, 12.5, 12.5, 6.2, 25.0, and 12.5 μg/mL, respectively.
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Affiliation(s)
- Yunfeng Liu
- College of Horticulture, Hebei Agricultural University, Baoding, China
- College of Life Sciences, Hebei University, Baoding, China
| | - Lu Qi
- College of Pharmaceutical Sciences, Hebei University, Baoding, China
| | - Minghui Xu
- College of Life Sciences, Hebei University, Baoding, China
| | - Wanyun Li
- College of Life Sciences, Hebei University, Baoding, China
| | - Na Liu
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Xueli He
- College of Life Sciences, Hebei University, Baoding, China
| | - Yuxing Zhang
- College of Horticulture, Hebei Agricultural University, Baoding, China
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207
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Tian WH, Jin Y, Liao YC, Faraj TK, Guo XY, Maharachchikumbura SSN. Phylogenetic Insights Reveal New Taxa in Thyridariaceae and Massarinaceae. J Fungi (Basel) 2024; 10:542. [PMID: 39194868 DOI: 10.3390/jof10080542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/29/2024] [Accepted: 07/31/2024] [Indexed: 08/29/2024] Open
Abstract
Pleosporales is a highly diverse (and the largest) order in Dothideomycetes, and it is widespread in decaying plants in various environments around the world. During a survey of fungal diversity in Sichuan Province, China, specimens of hyphomycetous and Thyridaria-like fungi were collected from dead branches of pine trees and cherry trees. These taxa were initially identified as members of Massarinaceae and Thyridariaceae through morphological examination. Phylogenetic analyses of the Thyridariaceae, combining ITS, SSU, LSU, RPB2, and TEF1 sequence data, indicated a distinct clade sister to Pseudothyridariella and Thyridariella, distinct from any genus in the family. Thus, a new genus, Vaginospora, is proposed to accommodate the type species Vaginospora sichuanensis, which is characterized by semi-immersed globose to oblong ascomata with an ostiolar neck, cylindrical to clavate asci with an ocular chamber, and hyaline to dark brown, fusiform, 3-5-transversely septate ascospores with an inconspicuous mucilaginous sheath. Based on the morphological comparisons and multi-locus phylogenetic analyses (ITS, SSU, LSU, RPB2, and TEF1) of the Massarinaceae, we have identified three collections belonging to the genus Helminthosporium, leading us to propose H. filamentosa sp. nov., H. pini sp. nov., and H. velutinum as a new host record. According to Phylogenetic analysis, H. pini formed an independent clade sister to H. austriacum and H. yunnanense, and H. filamentosa represents the closest sister clade to H. quercinum. Helminthosporium pini is distinct from H. austriacum by the shorter conidiophores and H. yunnanense by the longer and wider conidia. The H. filamentosa differs from H. quercinum in having longer conidiophores and smaller conidia. This study extends our understanding of diversity within Thyridariaceae and Helminthosporium. Our findings underscore the rich biodiversity and potential for discovering novel fungal taxa within these groups.
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Affiliation(s)
- Wen-Hui Tian
- Center for Informational Biology, College of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yan Jin
- Center for Informational Biology, College of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yue-Chi Liao
- Center for Informational Biology, College of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Turki Kh Faraj
- Department of Soil Science, College of Food and Agriculture Sciences, King Saud University, P.O. Box 145111, Riyadh 11362, Saudi Arabia
| | - Xin-Yong Guo
- College of Life Science, Shihezi University, Shihezi 832000, China
| | - Sajeewa S N Maharachchikumbura
- Center for Informational Biology, College of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
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208
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Le Noir de Carlan C, Kaarlejärvi E, De Tender C, Heinecke T, Eskelinen A, Verbruggen E. Shifts in mycorrhizal types of fungi and plants in response to fertilisation, warming and herbivory in a tundra grassland. THE NEW PHYTOLOGIST 2024; 243:1190-1204. [PMID: 38742310 DOI: 10.1111/nph.19816] [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: 11/12/2023] [Accepted: 04/27/2024] [Indexed: 05/16/2024]
Abstract
Climate warming is severely affecting high-latitude regions. In the Arctic tundra, it may lead to enhanced soil nutrient availability and interact with simultaneous changes in grazing pressure. It is presently unknown how these concurrently occurring global change drivers affect the root-associated fungal communities, particularly mycorrhizal fungi, and whether changes coincide with shifts in plant mycorrhizal types. We investigated changes in root-associated fungal communities and mycorrhizal types of the plant community in a 10-yr factorial experiment with warming, fertilisation and grazing exclusion in a Finnish tundra grassland. The strongest determinant of the root-associated fungal community was fertilisation, which consistently increased potential plant pathogen abundance and had contrasting effects on the different mycorrhizal fungal types, contingent on other treatments. Plant mycorrhizal types went through pronounced shifts, with warming favouring ecto- and ericoid mycorrhiza but not under fertilisation and grazing exclusion. Combination of all treatments resulted in dominance by arbuscular mycorrhizal plants. However, shifts in plant mycorrhizal types vs fungi were mostly but not always aligned in their magnitude and direction. Our results show that our ability to predict shifts in symbiotic and antagonistic fungal communities depend on simultaneous consideration of multiple global change factors that jointly alter plant and fungal communities.
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Affiliation(s)
- Coline Le Noir de Carlan
- Plants and Ecosystems (PLECO), Department of Biology, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Elina Kaarlejärvi
- Research Centre for Ecological Change, Organismal and Evolutionary Biology, University of Helsinki, PO Box 65 (Viikinkaari 1), Helsinki, FI-00014, Finland
| | - Caroline De Tender
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Burg. Van Gansberghelaan 96-109, 9820, Merelbeke, Belgium
- Department of Biochemistry and Microbiology, Ghent University, K.L. Ledeganckstraat 35, 9000, Ghent, Belgium
| | - Thilo Heinecke
- Plants and Ecosystems (PLECO), Department of Biology, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Anu Eskelinen
- Ecology & Genetics, University of Oulu, PO Box 8000, FI-90014, Oulu, Finland
- Department of Physiological Diversity, Helmholtz Center for Environmental Research - UFZ, Permoserstrasse 15, 04318, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv), Puschstraße 4, 04103, Leipzig, Germany
| | - Erik Verbruggen
- Plants and Ecosystems (PLECO), Department of Biology, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
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209
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Karbstein K, Kösters L, Hodač L, Hofmann M, Hörandl E, Tomasello S, Wagner ND, Emerson BC, Albach DC, Scheu S, Bradler S, de Vries J, Irisarri I, Li H, Soltis P, Mäder P, Wäldchen J. Species delimitation 4.0: integrative taxonomy meets artificial intelligence. Trends Ecol Evol 2024; 39:771-784. [PMID: 38849221 DOI: 10.1016/j.tree.2023.11.002] [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: 05/08/2023] [Revised: 10/20/2023] [Accepted: 11/08/2023] [Indexed: 06/09/2024]
Abstract
Although species are central units for biological research, recent findings in genomics are raising awareness that what we call species can be ill-founded entities due to solely morphology-based, regional species descriptions. This particularly applies to groups characterized by intricate evolutionary processes such as hybridization, polyploidy, or asexuality. Here, challenges of current integrative taxonomy (genetics/genomics + morphology + ecology, etc.) become apparent: different favored species concepts, lack of universal characters/markers, missing appropriate analytical tools for intricate evolutionary processes, and highly subjective ranking and fusion of datasets. Now, integrative taxonomy combined with artificial intelligence under a unified species concept can enable automated feature learning and data integration, and thus reduce subjectivity in species delimitation. This approach will likely accelerate revising and unraveling eukaryotic biodiversity.
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Affiliation(s)
- Kevin Karbstein
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Integration, 07745 Jena, Germany.
| | - Lara Kösters
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Integration, 07745 Jena, Germany
| | - Ladislav Hodač
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Integration, 07745 Jena, Germany
| | - Martin Hofmann
- Technical University of Ilmenau, Institute for Computer and Systems Engineering, 98693 Ilmenau, Germany
| | - Elvira Hörandl
- University of Göttingen, Albrecht-von-Haller Institute for Plant Sciences, Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), 37073 Göttingen, Germany
| | - Salvatore Tomasello
- University of Göttingen, Albrecht-von-Haller Institute for Plant Sciences, Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), 37073 Göttingen, Germany
| | - Natascha D Wagner
- University of Göttingen, Albrecht-von-Haller Institute for Plant Sciences, Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), 37073 Göttingen, Germany
| | - Brent C Emerson
- Institute of Natural Products and Agrobiology (IPNA-CSIC), Island Ecology and Evolution Research Group, 38206 La Laguna, Tenerife, Canary Islands, Spain
| | - Dirk C Albach
- Carl von Ossietzky-Universität Oldenburg, Institute of Biology and Environmental Science, 26129 Oldenburg, Germany
| | - Stefan Scheu
- University of Göttingen, Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, 37073 Göttingen, Germany; University of Göttingen, Centre of Biodiversity and Sustainable Land Use (CBL), 37073 Göttingen, Germany
| | - Sven Bradler
- University of Göttingen, Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, 37073 Göttingen, Germany
| | - Jan de Vries
- University of Göttingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, 37077 Göttingen, Germany; University of Göttingen, Campus Institute Data Science (CIDAS), 37077 Göttingen, Germany; University of Göttingen, Göttingen Center for Molecular Biosciences (GZMB), Department of Applied Bioinformatics, 37077 Göttingen, Germany
| | - Iker Irisarri
- Leibniz Institute for the Analysis of Biodiversity Change (LIB), Centre for Molecular Biodiversity Research, Phylogenomics Section, Museum of Nature, 20146 Hamburg, Germany
| | - He Li
- Eastern China Conservation Centre for Wild Endangered Plant Resources, Chenshan Botanical Garden, 201602 Shanghai, China
| | - Pamela Soltis
- University of Florida, Florida Museum of Natural History, 32611 Gainesville, USA
| | - Patrick Mäder
- Technical University of Ilmenau, Institute for Computer and Systems Engineering, 98693 Ilmenau, Germany; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany; Friedrich Schiller University Jena, Faculty of Biological Sciences, Institute of Ecology and Evolution, Philosophenweg 16, 07743 Jena, Germany
| | - Jana Wäldchen
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Integration, 07745 Jena, Germany; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany
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210
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Thomé PC, Wolinska J, Van Den Wyngaert S, Reñé A, Ilicic D, Agha R, Grossart HP, Garcés E, Monaghan MT, Strassert JFH. Phylogenomics including new sequence data of phytoplankton-infecting chytrids reveals multiple independent lifestyle transitions across the phylum. Mol Phylogenet Evol 2024; 197:108103. [PMID: 38754710 DOI: 10.1016/j.ympev.2024.108103] [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: 07/26/2023] [Revised: 12/01/2023] [Accepted: 05/11/2024] [Indexed: 05/18/2024]
Abstract
Parasitism is the most common lifestyle on Earth and has emerged many times independently across the eukaryotic tree of life. It is frequently found among chytrids (Chytridiomycota), which are early-branching unicellular fungi that feed osmotrophically via rhizoids as saprotrophs or parasites. Chytrids are abundant in most aquatic and terrestrial environments and fulfil important ecosystem functions. As parasites, they can have significant impacts on host populations. They cause global amphibian declines and influence the Earth's carbon cycle by terminating algal blooms. To date, the evolution of parasitism within the chytrid phylum remains unclear due to the low phylogenetic resolution of rRNA genes for the early diversification of fungi, and because few parasitic lineages have been cultured and genomic data for parasites is scarce. Here, we combine transcriptomics, culture-independent single-cell genomics and a phylogenomic approach to overcome these limitations. We newly sequenced 29 parasitic taxa and combined these with existing data to provide a robust backbone topology for the diversification of Chytridiomycota. Our analyses reveal multiple independent lifestyle transitions between parasitism and saprotrophy among chytrids and multiple host shifts by parasites. Based on these results and the parasitic lifestyle of other early-branching holomycotan lineages, we hypothesise that the chytrid last common ancestor was a parasite of phytoplankton.
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Affiliation(s)
- Pauline C Thomé
- Department of Evolutionary and Integrative Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Justyna Wolinska
- Department of Evolutionary and Integrative Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany; Institut für Biologie, Freie Universität Berlin, Berlin, Germany
| | - Silke Van Den Wyngaert
- Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany; Department of Biology, University of Turku, Turku, Finland
| | - Albert Reñé
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, Barcelona, Spain
| | - Doris Ilicic
- Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany
| | - Ramsy Agha
- Department of Evolutionary and Integrative Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Hans-Peter Grossart
- Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany; Institute for Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Esther Garcés
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, Barcelona, Spain
| | - Michael T Monaghan
- Department of Evolutionary and Integrative Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany; Institut für Biologie, Freie Universität Berlin, Berlin, Germany
| | - Jürgen F H Strassert
- Department of Evolutionary and Integrative Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.
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211
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Negi N, Ramkrishna, Meena RK, Bhandari MS, Pandey S. Discovery of Botryosphaeria eucalypti sp. nov. from blighted Eucalyptus leaves in India. Microb Pathog 2024; 193:106756. [PMID: 38901752 DOI: 10.1016/j.micpath.2024.106756] [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: 03/18/2024] [Revised: 06/18/2024] [Accepted: 06/18/2024] [Indexed: 06/22/2024]
Abstract
Eucalyptus spp. are undoubtedly one of the most favored plantation trees globally. Accurately identifying Eucalyptus pathogens is therefore crucial for timely disease prevention and control. Recently, symptoms of a leaf blight disease were observed on Eucalyptus trees in plantations at Jhajjar and Karnal in the state of Haryana, northern India. Asexual morphs resembling the features of the Botryosphaeriaceae were consistently isolated from the symptomatic leaves. Morphological features coupled with DNA sequence analysis confirmed a novel species, which is described and illustrated here as Botryosphaeria eucalypti sp. nov. Conidia of the new taxon are longer and wider than those of its phylogenetic neighbors. A distinct phylogenetic position for the new taxon was established through combined analysis of the internal transcribed spacer (ITS), partial translation elongation factor-1α (tef1) and partial β-tubulin (tub2) regions. Recombination analysis provided additional support for the new species hypothesis. The pathogenicity of the novel species was proved on Eucalyptus leaves, and Koch's postulates were fulfilled. The discovery of new Botryosphaeria species is important because it will help in understanding the species diversity, host range, possible threats and disease control in the long run.
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Affiliation(s)
- Nitika Negi
- Forest Pathology Discipline, Forest Protection Division, ICFRE-Forest Research Institute, Dehradun, India.
| | - Ramkrishna
- Forest Pathology Discipline, Forest Protection Division, ICFRE-Forest Research Institute, Dehradun, India.
| | - Rajendra K Meena
- Genetics and Tree Improvement Division, ICFRE-Forest Research Institute, Dehradun, India.
| | - Maneesh S Bhandari
- Genetics and Tree Improvement Division, ICFRE-Forest Research Institute, Dehradun, India.
| | - Shailesh Pandey
- Forest Pathology Discipline, Forest Protection Division, ICFRE-Forest Research Institute, Dehradun, India.
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212
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Wang B, Wang S, Wu L, Wu Y, Wang S, Bai Y, Chen D. Temporal asynchrony of plant and soil biota determines ecosystem multifunctional stability. GLOBAL CHANGE BIOLOGY 2024; 30:e17483. [PMID: 39171768 DOI: 10.1111/gcb.17483] [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: 02/18/2024] [Revised: 07/17/2024] [Accepted: 07/29/2024] [Indexed: 08/23/2024]
Abstract
The role of plant biodiversity in stabilizing ecosystem multifunctionality has been extensively studied; however, the impact of soil biota biodiversity on ecosystem multifunctional stability, particularly under multiple environmental changes, remains unexplored. By conducting an experiment with environmental changes (adding water and nitrogen to a long-term grazing experiment) and an experiment without environmental changes (an undisturbed site) in semi-arid grasslands, our research revealed that environmental changes-induced changes in temporal stability of both above- and belowground multifunctionality were mainly impacted by plant and soil biota asynchrony, rather than by species diversity. Furthermore, changes in temporal stability of above- and belowground multifunctionality, under both experiments with and without environmental changes, were mainly associated with plant and soil biota asynchrony, respectively, suggesting that the temporal asynchrony of plant and soil biota has independent and non-substitutable effects on multifunctional stability. Our findings emphasize the importance of considering both above- and belowground biodiversity or functions when evaluating the stabilizing effects of biodiversity on ecosystem functions.
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Affiliation(s)
- Bing Wang
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, China
| | - Shuaifei Wang
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Liji Wu
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Ying Wu
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Shaopeng Wang
- Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Yongfei Bai
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Dima Chen
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
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213
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Li F, Lu D, Meng F, Tian C. Transcription Factor CgSte12 Regulates Pathogenicity by Affecting Appressorium Structural Development in the Anthracnose-Causing Fungus Colletotrichum gloeosporioides. PHYTOPATHOLOGY 2024; 114:1832-1842. [PMID: 38748933 DOI: 10.1094/phyto-12-23-0484-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2024]
Abstract
Colletotrichum gloeosporioides is the causal agent of poplar anthracnose, which induces major economic losses and adversely affects the ecosystem services of poplar forests. The appressorium serves as a penetration structure for many pathogenic fungi, including C. gloeosporioides. The production of mucilage and the formation of penetration pegs are critically important for the appressorium-mediated penetration of host tissues. We previously found that CgPmk1 is a key protein involved in appressorium formation, penetration, and pathogenicity. Although CgSte12, which is a transcription factor that functions downstream of CgPmk1, regulates the formation of penetration pegs, its role in C. gloeosporioides appressorium development and pathogenicity has not been elucidated. Here, we developed C. gloeosporioides CgSTE12 mutants and characterized the molecular and cellular functions of CgSTE12. The results showed that mycelial growth and morphology were not affected in the CgSTE12 knockout mutants, which produced normal melanized appressoria. However, these mutants had less mucilage secreted around the appressoria, impaired appressorial cone formation, and the inability to form penetration pores and pegs, which ultimately led to a significant loss of pathogenicity. Our comparative transcriptome analysis revealed that CgSte12 controls the expression of genes involved in appressorium development and function, including genes encoding cutinases, NADPH oxidase, spermine biosynthesis-related proteins, ceramide biosynthesis-related proteins, fatty acid metabolism-related proteins, and glycerophospholipid metabolism-related proteins. Overall, our findings indicate that CgSte12 is a critical regulator of appressorium development and affects C. gloeosporioides pathogenicity by modulating the structural integrity of appressoria.
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Affiliation(s)
- Fuhan Li
- The Key Laboratory for Silviculture and Conservation of Ministry of Education, College of Forestry, Beijing Forestry University, Beijing, China
| | - Dongxiao Lu
- The Key Laboratory for Silviculture and Conservation of Ministry of Education, College of Forestry, Beijing Forestry University, Beijing, China
| | - Fanli Meng
- The Key Laboratory for Silviculture and Conservation of Ministry of Education, College of Forestry, Beijing Forestry University, Beijing, China
| | - Chengming Tian
- The Key Laboratory for Silviculture and Conservation of Ministry of Education, College of Forestry, Beijing Forestry University, Beijing, China
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214
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Brasch J, Gräser Y, Voss K, Langen KA, Yurkov A. Inopinatus corneliae sp. nov. gen. nov. isolated from human skin: A newly discovered keratinophilic hyphomycete, order Onygenales. Mycoses 2024; 67:e13774. [PMID: 39092516 DOI: 10.1111/myc.13774] [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: 07/11/2024] [Accepted: 07/18/2024] [Indexed: 08/04/2024]
Abstract
BACKGROUND Fungi clinically relevant to human skin comprise prevalent commensals and well-known pathogens. Only rarely human skin harbours fungi that evade identification. OBJECTIVE To characterise an enigmatic specimen isolated from a skin lesion. METHODS A comprehensive clinical and mycological workup including conventional methods for phenotypic characterisation and sequencing based on internal transcribed spacer (ITS) and large subunit (LSU) regions to infer a phylogenetic tree. RESULTS Cultures on common solid media were macroscopically inconspicuous initially until mycelial tufts developed on the surface, notably on potato dextrose agar. Polymorphous chlamydospores were detected but no aleurospores and ascomata. At 26°C, the isolate grew on standard agars, plant materials and garden soil and utilised peptone, keratins, lipids, inulin, erythrocytes and cellulose. It also grew at 5°C and at 37°C. Nucleotide sequences of its ITS region showed 93% similarity to sequences of different Malbranchea species. The closest matches among LSU rRNA sequences were obtained with the genera Amauroascus, Arthroderma, Auxarthronopsis and Malbranchea (93%-95%). A combined phylogenetic analysis placed the fungus in a sister clade to Neogymnomycetaceae, classified as incertae sedis in Onygenales, on a large distance to either Diploospora rosea or 'Amauroascus' aureus. CONCLUSIONS The genus Inopinatus gen. nov. (MB854685) with the species Inopinatus corneliae sp. nov. (MB854687) is introduced to accommodate our isolate (holotype: DSM 116806; isotypes: CBS 151104, IHEM 29063). Probably Inopinatus corneliae is a geophilic species that, although potentially harmful, was no relevant pathogen in our case. Its ecology, epidemiology and pathogenicity need to be further clarified.
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Affiliation(s)
- Jochen Brasch
- Department of Dermatology, University Hospitals of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Yvonne Gräser
- Institute of Microbiology, Infectious Diseases and Immunology, Charité, Berlin, Germany
| | - Karen Voss
- Department of Dermatology, University Hospitals of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Katharina Antonia Langen
- Department of Dermatology, University Hospitals of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Andrey Yurkov
- Leibniz Institute DSMZ, German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany
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215
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Karimi M, Mehrabi-Koushki M, Farokhinejad R, Beigi S. Additional new species of Xenodidymella from pasture-medicinal plants in Iran. Antonie Van Leeuwenhoek 2024; 117:110. [PMID: 39088091 DOI: 10.1007/s10482-024-02007-2] [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: 05/06/2024] [Accepted: 07/30/2024] [Indexed: 08/02/2024]
Abstract
Xenodidymella species have a wide range of hosts and can be found as pathogens and saprobes. In this study, two new species of Xenodidymella were found from leaf diseases of three pasture-medicinal plants in Ilam Province, in the west of Iran, and proposed here as X. ilamica and X. scandicis spp. nov. These species were identified based on morphological features and phylogenetic analyses of the internal transcribed spacer regions 1 & 2 and 5.8S nrDNA (ITS), partial beta-tubulin gene (tub2), and partial RNA polymerase II second largest subunit (rpb2) gene. The four Xenodidymella strains isolated in this study were delimited into two sister clades, with the two isolates of X. ilamica from the leaf spot of Colchicum speciosum and Ficaria kochii and two isolates of X. scandicis from leaf blight of Scandix pecten-veneris. Morphologically, X. scandicis produces larger, ostiolate or poroid pycnidia in vitro, while pycnidia in the cultures of X. ilamica are non-ostiolate and smaller. Some pycnidia in old cultures of X. scandicis produce a neck, but a distinct neck in X. ilamica has not been observed. Moreover, three plants under study are new hosts for the genus Xenodidymella.
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Affiliation(s)
- Maryam Karimi
- Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran
| | - Mehdi Mehrabi-Koushki
- Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran.
- Biotechnology and Bioscience Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Reza Farokhinejad
- Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran
| | - Siamak Beigi
- Agricultural Jihad of Ilam, Ilam, Ilam Province, Iran
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216
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Zheng J, Shi J, Wang D. Diversity of soil fungi and entomopathogenic fungi in subtropical mountain forest in southwest China. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e13267. [PMID: 38943366 PMCID: PMC11213981 DOI: 10.1111/1758-2229.13267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 04/06/2024] [Indexed: 07/01/2024]
Abstract
Till now, the diversity of entomopathogenic fungi in subtropical mountain forest was less studied. Here, the vertical distribution of forest soil fungi, entomopathogenic fungi, and their environmental influencing factors in a subtropical mountain in western China were investigated. Soil samples were collected from four elevations in a subtropical forest in Shaanxi. The results indicated a greater richness of soil fungi at middle elevations and soil fungi were more even at low elevation. Soil pH, available iron, available potassium, total potassium, and available zinc were the most important influencing factors affecting this vertical distribution of fungi. Interestingly, the Isaria genus was predominant while Metarhizium and Beauveria showed decreasing abundance. The presence of Isaria showed a significant positive correlation with both total phosphorus and available iron, while, available zinc was negatively correlated. Metarhizium was influenced by elevation, pH, available phosphorus, and available copper and Beauveria was influenced by soil organic carbon, total nitrogen, total potassium, available potassium, and available zinc. Overall, as environmental factors affecting soil fungi, elevation, and plant species diversity were less important than soil physical and chemical properties. The virulence of isolated entomopathogenic fungi were tested against larvae of Tenebrio molitor, with mortality ranging from 31.11% to 100%. The above findings provide valuable data to deepen our understanding of the diversity of entomopathogenic fungi in subtropical mountain forests.
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Affiliation(s)
- Jiyang Zheng
- Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxiChina
| | - Jinduo Shi
- Forest Bureau of Ankang CityAnkangShaanxiChina
| | - Dun Wang
- Key Laboratory of Crop Stress Biology for Arid AreasNorthwest A&F UniversityYanglingShaanxiChina
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217
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Wennrich JP, Holzenkamp C, Ashrafi S, Maier W, Wang H, Ibrahim MAA, Ebada SS, Stadler M. Laburnicolamine: A Rare Penillic Acid Congener from the Nematode Cyst-Associated Fungus Laburnicola nematophila. Chem Biodivers 2024; 21:e202401152. [PMID: 38771298 DOI: 10.1002/cbdv.202401152] [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: 05/05/2024] [Revised: 05/18/2024] [Accepted: 05/21/2024] [Indexed: 05/22/2024]
Abstract
A chemical investigation of a methanol extract derived from a solid-state rice culture of the nematode-cyst associated fungus Laburnicola nematophila K01 led to the isolation and characterization of a previously undescribed penillic acid analogue named laburnicolamine (1). The chemical structure was elucidated through comprehensive 1D and 2D NMR spectroscopic analyses in methanol-d4 and DMSO-d6, alongside with HR-ESI-MS spectrometry. The absolute configuration of 1 was concluded through the electronic circular dichroism (ECD) and time-dependent density functional theory-ECD (TDDFT-ECD) computations compared to its acquired spectrum. Biological assays revealed that compound 1 exhibited no significant cytotoxic, antimicrobial, or nematicidal activity.
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Affiliation(s)
- Jan-Peer Wennrich
- Department of Microbial Drugs, Helmholtz Centre for Infection Research (HZI) and German Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Caren Holzenkamp
- Department of Microbial Drugs, Helmholtz Centre for Infection Research (HZI) and German Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Samad Ashrafi
- Institute for Epidemiology and Pathogen Diagonstics, Julius Kühn Institute (JKI) - Federal Research Center for Cultivated Plants, Messeweg 11-12, 38104, Braunschweig, Germany
- Institute for Crop and Soil Science, Julius Kühn Institute (JKI) - Federal Research Centre for Cultivated Plants, Bundesallee 58, 38116, Braunschweig, Germany
| | - Wolfgang Maier
- Institute for Epidemiology and Pathogen Diagonstics, Julius Kühn Institute (JKI) - Federal Research Center for Cultivated Plants, Messeweg 11-12, 38104, Braunschweig, Germany
| | - Hao Wang
- Key Laboratory of Natural Products Research and Development of Li Folk Medicine of Hainan Province, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Mahmoud A A Ibrahim
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science, Minia University, Minia, 61519, Egypt
- School of Health Sciences, University of KwaZulu-Natal, Westville, Durban, 4000, South Africa
| | - Sherif S Ebada
- Department of Microbial Drugs, Helmholtz Centre for Infection Research (HZI) and German Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Marc Stadler
- Department of Microbial Drugs, Helmholtz Centre for Infection Research (HZI) and German Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
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218
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Silva DF, Mazza Rodrigues JL, Erikson C, Silva AMM, Huang L, Araujo VLVP, Matteoli FP, Mendes LW, Araujo ASF, Pereira APA, Melo VMM, Cardoso EJBN. Grazing exclusion-induced changes in soil fungal communities in a highly desertified Brazilian dryland. Microbiol Res 2024; 285:127763. [PMID: 38805979 DOI: 10.1016/j.micres.2024.127763] [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: 11/24/2023] [Revised: 03/09/2024] [Accepted: 05/11/2024] [Indexed: 05/30/2024]
Abstract
Soil desertification poses a critical ecological challenge in arid and semiarid climates worldwide, leading to decreased soil productivity due to the disruption of essential microbial community processes. Fungi, as one of the most important soil microbial communities, play a crucial role in enhancing nutrient and water uptake by plants through mycorrhizal associations. However, the impact of overgrazing-induced desertification on fungal community structure, particularly in the Caatinga biome of semiarid regions, remains unclear. In this study, we assessed the changes in both the total fungal community and the arbuscular mycorrhizal fungal community (AMF) across 1. Natural vegetation (native), 2. Grazing exclusion (20 years) (restored), and 3. affected by overgrazing-induced degradation (degraded) scenarios. Our assessment, conducted during both the dry and rainy seasons in Irauçuba, Ceará, utilized Internal Transcribed Spacer (ITS) gene sequencing via Illumina® platform. Our findings highlighted the significant roles of the AMF families Glomeraceae (∼71% of the total sequences) and Acaulosporaceae (∼14% of the total sequences) as potential key taxa in mitigating climate change within dryland areas. Moreover, we identified the orders Pleosporales (∼35% of the total sequences) and Capnodiales (∼21% of the total sequences) as the most abundant soil fungal communities in the Caatinga biome. The structure of the total fungal community differed when comparing native and restored areas to degraded areas. Total fungal communities from native and restored areas clustered together, suggesting that grazing exclusion has the potential to improve soil properties and recover fungal community structure amid global climate change challenges.
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Affiliation(s)
- Danilo F Silva
- Laboratory of Soil Microbiology, Soil Science Department, 'Luiz de Queiroz' College of Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil; Soil EcoGenomics Laboratory, Department of Land, Air and Water Resources, University of California, Davis, CA, USA.
| | - Jorge L Mazza Rodrigues
- Soil EcoGenomics Laboratory, Department of Land, Air and Water Resources, University of California, Davis, CA, USA; Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Christian Erikson
- Soil EcoGenomics Laboratory, Department of Land, Air and Water Resources, University of California, Davis, CA, USA
| | - Antonio M M Silva
- Laboratory of Soil Microbiology, Soil Science Department, 'Luiz de Queiroz' College of Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
| | - Laibin Huang
- Department of Biology, Saint Louis University, St. Louis, MO, USA
| | - Victor L V P Araujo
- Laboratory of Soil Microbiology, Soil Science Department, 'Luiz de Queiroz' College of Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
| | - Filipe P Matteoli
- Laboratory of Microbial Bioinformatic, Faculty of Sciences, São Paulo State University (Unesp), Bauru, São Paulo, Brazil
| | - Lucas W Mendes
- Center for Nuclear Energy in Agriculture, Piracicaba, São Paulo, Brazil
| | | | | | | | - Elke J B N Cardoso
- Laboratory of Soil Microbiology, Soil Science Department, 'Luiz de Queiroz' College of Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
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219
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Du JH, Zhao X, Zhang F, Wang Y, Du K, Ding SY, Feng WS, Zhao ZZ. Ganonorsterone A, a norsteroid from the medicinal fungus Ganoderma lingzhi. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:1001-1008. [PMID: 38607260 DOI: 10.1080/10286020.2024.2340691] [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: 04/19/2023] [Accepted: 03/29/2024] [Indexed: 04/13/2024]
Abstract
Phytochemical investigation on the fruiting bodies of the medicinal fungus Ganoderma lingzhi led to the isolation of a new norsteroid, namely ganonorsterone A (1), together with one known steroid, cyathisterol (2). The structure and absolute configuration of compound 1 were assigned by extensive analysis of MS, NMR data, and quantum-chemical calculations including electronic circular dichroism (ECD) and calculated 13C NMR-DP4+ analysis. Bioassay results showed that compound 1 displayed moderate inhibition on NO production in RAW 264.7 macrophages.
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Affiliation(s)
- Jia-Hui Du
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Xuan Zhao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Fei Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Yan Wang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Kun Du
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Si-Yi Ding
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Wei-Sheng Feng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Zhen-Zhu Zhao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
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220
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Vineeth VK, Babu S, Reshma TR, Philip S, Prem E. Exhaustive identification and characterization of Colletotrichum siamense and Colletotrichum fructicola as causative agents of circular leaf spot disease of rubber tree (Hevea brasiliensis) in India. Fungal Biol 2024; 128:1907-1916. [PMID: 39059846 DOI: 10.1016/j.funbio.2024.05.009] [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: 02/23/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 07/28/2024]
Abstract
The rubber tree (Hevea brasiliensis) is one of the major domesticated crops planted commercially for the production of natural rubber (NR) worldwide. In recent years, rubber trees in the Southern states of India and other rubber-producing countries have experienced a severe leaf spot disease, characterized by the appearance of several brown circular spots in the initial stage, which later spread all over the lamina of fully matured leaves, leading to yellowing and defoliation. The causal organism of this Circular Leaf Spot (CLS) disease has not been conclusively identified in any previous studies. In this study, we collected infected leaf samples from various locations in the South Indian states. We aimed to identify the actual fungal pathogen that causes the CLS disease on rubber trees. Based on the morphological and molecular analysis of the most frequently isolated fungi from infected leaf samples were identified as Colletotrichum siamense and Colletotrichum fructicola. Pathogenicity tests also confirmed the involvement of isolated Colletotrichum spp. in the development of CLS disease. These findings provide valuable insights into understanding the CLS disease and its impact on rubber cultivation. To our knowledge, it is the first report of C. siamense and C. fructicola associated with CLS disease of rubber trees in India.
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Affiliation(s)
- V K Vineeth
- Rubber Research Institute of India, Kottayam, Kerala, 686009, India.
| | - Shilpa Babu
- Rubber Research Institute of India, Kottayam, Kerala, 686009, India.
| | - T R Reshma
- Rubber Research Institute of India, Kottayam, Kerala, 686009, India.
| | - Shaji Philip
- Rubber Research Institute of India, Kottayam, Kerala, 686009, India.
| | - Edwin Prem
- Rubber Research Institute of India, Kottayam, Kerala, 686009, India.
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221
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Liu F, Hu ZD, Yurkov A, Chen XH, Bao WJ, Ma Q, Zhao WN, Pan S, Zhao XM, Liu JH, Wang QM, Boekhout T. Saccharomycetaceae: delineation of fungal genera based on phylogenomic analyses, genomic relatedness indices and genomics-based synapomorphies. PERSOONIA 2024; 52:1-21. [PMID: 39161631 PMCID: PMC11319838 DOI: 10.3767/persoonia.2024.52.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/08/2024] [Indexed: 08/21/2024]
Abstract
A correct classification of fungi, including yeasts, is of prime importance to understand fungal biodiversity and to communicate about this diversity. Fungal genera are mainly defined based on phenotypic characteristics and the results of single or multigene-based phylogenetic analyses. However, because yeasts often have less phenotypic characters, their classification experienced a strong move towards DNA-based data, from short ribosomal sequences to multigene phylogenies and more recently to phylogenomics. Here, we explore the usefulness of various genomics-based parameters to circumscribe fungal genera more correctly taking the yeast domain as an example. Therefore, we compared the results of a phylogenomic analysis, average amino acid identity (AAI) values, the presence of conserved signature indels (CSIs), the percentage of conserved proteins (POCP) and the presence-absence patterns of orthologs (PAPO). These genome-based metrics were used to investigate their usefulness in demarcating 13 hitherto relatively well accepted genera in Saccharomycetaceae, namely Eremothecium, Grigorovia, Kazachstania, Kluyveromyces, Lachancea, Nakaseomyces, Naumovozyma, Saccharomyces, Tetrapisispora, Torulaspora, Vanderwaltozyma, Zygosaccharomyces and Zygotorulaspora. As a result, most of these genera are supported by the genomics-based metrics, but the genera Kazachstania, Nakaseomyces and Tetrapisispora were shown to be genetically highly diverse based on the above listed analyses. Considering the results obtained for the presently recognized genera, a range of 80-92 % POCP values and a range of 60-70 % AAI values might be valuable thresholds to discriminate genera in Saccharomycetaceae. Furthermore, the genus-specific genes identified in the PAPO analysis and the CSIs were found to be useful as synapomorphies to characterize and define genera in Saccharomycetaceae. Our results indicate that the combined monophyly-based phylogenomic analysis together with genomic relatedness indices and synapomorphies provide promising approaches to delineating yeast genera and likely those of filamentous fungi as well. The genera Kazachstania, Nakaseomyces and Tetrapisispora are revised and we propose eight new genera and 41 new combinations. Citation: Liu F, Hu Z-D, Yurkov A, et al. 2024. Saccharomycetaceae: delinaeation of fungal genera based on phylogenomic analyses, genomic relatedness indices and genomics-based synapomorphies. Persoonia 52: 1-21. https://doi.org/10.3767/persoonia.2024.52.01.
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Affiliation(s)
- F. Liu
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - Z.-D. Hu
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - A. Yurkov
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - X.-H. Chen
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - W.-J. Bao
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - Q. Ma
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - W.-N. Zhao
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - S. Pan
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - X.-M. Zhao
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - J.-H. Liu
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - Q.-M. Wang
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
- Engineering Laboratory of Microbial Breeding and Preservation of Hebei Province, Hebei University, Baoding 071002, Hebei, China
- Hebei Basic Science Center for Biotic Interaction, Hebei University, Baoding 071002, Hebei, China
| | - T. Boekhout
- College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
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222
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Qi J, Wu J, Kang S, Gao J, Hirokazu K, Liu H, Liu C. The chemical structures, biosynthesis, and biological activities of secondary metabolites from the culinary-medicinal mushrooms of the genus Hericium: a review. Chin J Nat Med 2024; 22:676-698. [PMID: 39197960 DOI: 10.1016/s1875-5364(24)60590-x] [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: 02/23/2024] [Indexed: 09/01/2024]
Abstract
Fungal phytochemicals derived from higher fungi, particularly those from the culinary-medicinal genus Hericium, have gained significant attention in drug discovery and healthcare. This review aims to provide a comprehensive analysis of the chemical structures, biosynthetic pathways, biological activities, and pharmacological properties of monomeric compounds isolated from Hericium species. Over the past 34 years, 253 metabolites have been identified from various Hericium species, including cyathane diterpenes, alkaloids, benzofurans, chromenes, phenols, pyrones, steroids, and other miscellaneous compounds. Detailed investigations into the biosynthesis of erinacines, a type of cyathane diterpene, have led to the discovery of novel cyathane diterpenes. Extensive research has highlighted the biological activities and pharmacological properties of Hericium-derived compounds, with particular emphasis on their neuroprotective and neurotrophic effects, immunomodulatory capabilities, anti-cancer activity, antioxidant properties, and antimicrobial actions. Erinacine A, in particular, has been extensively studied. Genomic, transcriptomic, and proteomic analyses of Hericium species have facilitated the discovery of new compounds and provided insights into enzymatic reactions through genome mining. The diverse chemical structures and biological activities of Hericium compounds underpin their potential applications in medicine and as dietary supplements. This review not only advances our understanding of Hericium compounds but also encourages further research into Hericium species within the realms of medicine, health, functional foods, and agricultural microbiology. The broad spectrum of compound types and their diverse biological activities present promising opportunities for the development of new pharmaceuticals and edible products.
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Affiliation(s)
- Jianzhao Qi
- Key Laboratory for Enzyme and Enzyme-Like Material Engineering of Heilongjiang, College of Life Science, Northeast Forestry University, Harbin 150040, China; Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Jing Wu
- Faculty of Agriculture, Shizuoka University, Shizuoka 422-8529, Japan
| | - Shijie Kang
- Key Laboratory for Enzyme and Enzyme-Like Material Engineering of Heilongjiang, College of Life Science, Northeast Forestry University, Harbin 150040, China; Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Jingming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | | | - Hongwei Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.
| | - Chengwei Liu
- Key Laboratory for Enzyme and Enzyme-Like Material Engineering of Heilongjiang, College of Life Science, Northeast Forestry University, Harbin 150040, China.
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223
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Dorrance AE, Vargas A, Navarro-Acevedo K, Wijertatne S, Myers J, Paredes JA. Picarbutrazox Effectiveness Added to a Seed Treatment Mixture for Management of Oomycetes that Impact Soybean in Ohio. PLANT DISEASE 2024; 108:2330-2340. [PMID: 38190367 DOI: 10.1094/pdis-06-23-1223-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
None of the current oomycota fungicides are effective towards all species of Phytophthora, Phytopythium, Globisporangium, and Pythium that affect soybean seed and seedlings in Ohio. Picarbutrazox is a new oomyceticide with a novel mode of action towards oomycete pathogens. Our objectives were to evaluate picarbutrazox to determine (i) baseline sensitivity (EC50) to 189 isolates of 29 species, (ii) the efficacy with a base seed treatment with three cultivars with different levels of resistance in 14 field environments; and (iii) if the rhizosphere microbiome was affected by the addition of the seed treatment on a moderately susceptible cultivar. The mycelial growth of all isolates was inhibited beginning at 0.001 μg, and the EC50 ranged from 0.0013 to 0.0483 μg of active ingredient (a.i.)/ml. The effect of seed treatment was significantly different for plant population and yield in eight of 14 and six of 12 environments, respectively. The addition of picarbutrazox at 1 and 2.5 g of a.i./100 kg seed to the base seed treatment compared to the base alone was associated with higher plant populations and yield in three and one environments, respectively. There was limited impact of the seed treatment mefenoxam 7.5 g of a.i. plus picarbutrazox 1 g of a.i./100 kg seed on the oomycetes detected in the rhizosphere of soybean seedlings collected at the V1 growth stage. Picarbutrazox has efficacy towards a wider range of oomycetes that cause disease on soybean, and this will be another oomyceticide tool to combat early season damping-off in areas where environmental conditions highly favor disease development.
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Affiliation(s)
- Anne E Dorrance
- Department of Plant Pathology and CFAES Center for Soybean Research, CFAES Wooster Campus, The Ohio State University, Wooster, OH 44691
| | - Amilcar Vargas
- Department of Plant Pathology and CFAES Center for Soybean Research, CFAES Wooster Campus, The Ohio State University, Wooster, OH 44691
| | - Krystel Navarro-Acevedo
- Department of Plant Pathology and CFAES Center for Soybean Research, CFAES Wooster Campus, The Ohio State University, Wooster, OH 44691
| | - Saranga Wijertatne
- Molecular Cellular Imaging Center, CFAES Wooster, The Ohio State University, Wooster, OH
| | - Jonell Myers
- Department of Plant Pathology and CFAES Center for Soybean Research, CFAES Wooster Campus, The Ohio State University, Wooster, OH 44691
| | - Juan A Paredes
- Department of Plant Pathology and CFAES Center for Soybean Research, CFAES Wooster Campus, The Ohio State University, Wooster, OH 44691
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224
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Salvatore MM, Nicoletti R, Russo MT, Mahamedi AE, Berraf-Tebbal A, DellaGreca M, Anna A. First report of 6-methylpyridione analogues from Dothiorella sarmentorum, a botryosphaeriaceous fungus associated with grapevine trunk diseases. Nat Prod Res 2024; 38:2748-2755. [PMID: 37436783 DOI: 10.1080/14786419.2023.2232083] [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: 05/12/2023] [Revised: 06/13/2023] [Accepted: 06/24/2023] [Indexed: 07/13/2023]
Abstract
Dothiorella species are fungal plant pathogens associated with Botryosphaeria dieback of grapevine. Symptoms caused by these fungi on grapevines suggest possible implication of phytotoxic metabolites in the infection mechanisms. However, few studies were conducted to investigate the secondary metabolism of these fungi. In this study, 6-methylpyridione analogues were isolated and identified for the first time in liquid cultures of Dothiorella sarmentorum isolated from symptomatic grapevine in Algeria.
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Affiliation(s)
- Maria Michela Salvatore
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
- Institute for Sustainable Plant Protection, National Research Council, Portici, Italy
| | - Rosario Nicoletti
- Council for Agricultural Research and Economics, Research Centre for Olive, Fruit and Citrus Crops, Caserta, Italy
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Maria Teresa Russo
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
| | - Alla Eddine Mahamedi
- Département de Biologie, Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre, Université de Ghardaia, Ghardaïa, Algeria
- Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Alger, Algeria
| | - Akila Berraf-Tebbal
- Mendeleum-Insiìtitute of Genetics, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic
| | - Marina DellaGreca
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
| | - Andolfi Anna
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
- BAT Center-Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, Portici, Italy
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225
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Xiao D, Driller M, Dielentheis‐Frenken M, Haala F, Kohl P, Stein K, Blank LM, Tiso T. Advances in Aureobasidium research: Paving the path to industrial utilization. Microb Biotechnol 2024; 17:e14535. [PMID: 39075758 PMCID: PMC11286673 DOI: 10.1111/1751-7915.14535] [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: 04/30/2024] [Accepted: 07/10/2024] [Indexed: 07/31/2024] Open
Abstract
We here explore the potential of the fungal genus Aureobasidium as a prototype for a microbial chassis for industrial biotechnology in the context of a developing circular bioeconomy. The study emphasizes the physiological advantages of Aureobasidium, including its polyextremotolerance, broad substrate spectrum, and diverse product range, making it a promising candidate for cost-effective and sustainable industrial processes. In the second part, recent advances in genetic tool development, as well as approaches for up-scaled fermentation, are described. This review adds to the growing body of scientific literature on this remarkable fungus and reveals its potential for future use in the biotechnological industry.
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Affiliation(s)
- Difan Xiao
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Marielle Driller
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Marie Dielentheis‐Frenken
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Frederick Haala
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Philipp Kohl
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Karla Stein
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Lars M. Blank
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Till Tiso
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
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226
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Baba T, Hirose D. Two novel Archaeorhizomyces species isolated from ericoid mycorrhizal roots and their association with ericaceous plants in vitro. Fungal Biol 2024; 128:1939-1953. [PMID: 39059849 DOI: 10.1016/j.funbio.2024.05.011] [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: 02/19/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 07/28/2024]
Abstract
Archaeorhizomyces is a diverse and ubiquitous genus of the subphylum Taphrinomycotina, which contains soil-inhabiting/root-associated fungi. Although ecological importance and root-associating lifestyles of Archaeorhizomyces can be postulated, morphological aspects of fungal body and root colonization are largely unknown due to the scarcity of cultures. We obtained three unidentified Archaeorhizomyces isolates from ericoid mycorrhizal (ErM) roots of Rhododendron scabrum and Rhododendron × obtusum collected in Japan. To advance our understanding of lifestyle of the genus, we investigated their general morphology, phylogeny, and in vitro root-colonizing ability in ericoid mycorrhizal hosts, Vaccinium virgatum and Rhododendron kaempferi. Some morphological characteristics, such as slow glowing white-to-creamy-colored colonies and formation of yeast-like or chlamydospore-like cells, were shared between our strains and two described species, Archaeorhizomycesfinlayi and Archaeorhizomyces borealis, but they were phylogenetically distant. Our strains were clearly distinguished as two undescribed species based on morphology and phylogenetic relationship. As seen in typical ErM fungi, both species frequently formed hyphal coils within vital rhizodermal cells of ErM plants in vitro. The morphology of hyphal coils was also different between species. Consequently, two novel species, Archaeorhizomyces notokirishimae sp. nov. and Archaeorhizomyces ryukyuensis sp. nov., were described.
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Affiliation(s)
- Takashi Baba
- Division of Fruit Tree Production Research, Institute of Fruit Tree and Tea Science, NARO, 92-24 Shimokuriyagawa, Morioka, Iwate 020-0123, Japan
| | - Dai Hirose
- School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan.
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227
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Zhang Y, Zhu S, Wang C, Shi J, He J, Chen J, Liang L, Jiang F. Polymerase chain reaction-based methods for the rapid identification of Amanita exitialis. Food Chem 2024; 448:139086. [PMID: 38520990 DOI: 10.1016/j.foodchem.2024.139086] [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: 11/22/2023] [Revised: 03/04/2024] [Accepted: 03/18/2024] [Indexed: 03/25/2024]
Abstract
Amanita exitialis, a deadly mushroom found in eastern Asia, causes the highest death rates among all poisonous mushrooms in China. The aim of the present study was to develop an efficient, accurate, and user-friendly PCR-based method for identifying A. exitialis that could facilitate the prevention, diagnosis, and treatment of associated food poisoning. A. exitialis-specific primers and probes were designed based on the internal transcribed spacer region variations of 27 mushroom species. Specificity was confirmed using conventional and real-time PCR for 23 non-target mushroom species, including morphologically similar and closely related species. Compared to conventional PCR, real-time PCR was more sensitive (detectable DNA concentration: 1.36 × 10-2 ng/μL vs. 1.36 × 10-3) and efficient (analysis time: 1 h vs. 40 min). Furthermore, the real-time PCR results could be immediately visualized using amplification curve analysis. The results present two robust PCR-based methods for A. exitialis identification that can facilitate food safety.
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Affiliation(s)
- Yu Zhang
- Chinese Academy of Inspection and Quarantine, Beijing 100176, China.
| | - Shuifang Zhu
- Chinese Academy of Inspection and Quarantine, Beijing 100176, China.
| | - Chaonan Wang
- Chinese Academy of Inspection and Quarantine, Beijing 100176, China; Department of Plant Pathology, College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China.
| | - Junxia Shi
- Chinese Academy of Inspection and Quarantine, Beijing 100176, China.
| | - Jiayao He
- Chinese Academy of Inspection and Quarantine, Beijing 100176, China.
| | - Jian Chen
- Zhongshan Customs Technology Center, Zhongshan, Guangdong 528403, China.
| | - Liang Liang
- Academy of Agricultural Planning and Engineering, MARA, Beijing 100125, China.
| | - Fan Jiang
- Chinese Academy of Inspection and Quarantine, Beijing 100176, China.
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228
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Blázquez M, Pérez-Vargas I, Garrido-Benavent I, Villar-dePablo M, Turégano Y, Frías-López C, Sánchez-Gracia A, de los Ríos A, Gasulla F, Pérez-Ortega S. Endless forms most frustrating: disentangling species boundaries in the Ramalina decipiens group ( Lecanoromycetes, Ascomycota), with the description of six new species and a key to the group. PERSOONIA 2024; 52:44-93. [PMID: 39161630 PMCID: PMC11319839 DOI: 10.3767/persoonia.2024.52.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/08/2023] [Accepted: 11/15/2023] [Indexed: 08/21/2024]
Abstract
Oceanic islands have been recognized as natural laboratories in which to study a great variety of evolutionary processes. One such process is evolutionary radiations, the diversification of a single ancestor into a number of species that inhabit different environments and differ in the traits that allow them to exploit those environments. The factors that drive evolutionary radiations have been studied for decades in charismatic organisms such as birds or lizards, but are lacking in lichen-forming fungi, despite recent reports of some lineages showing diversification patterns congruent with radiation. Here we propose the Ramalina decipiens group as a model system in which to carry out such studies. This group is currently thought to be comprised of five saxicolous species, all of them endemic to the Macaronesian region (the Azores, Madeira, Selvagens, Canary and Cape Verde islands). Three species are single-island endemics (a rare geographic distribution pattern in lichens), whereas two are widespread and show extreme morphological variation. The latter are suspected to harbor unrecognized species-level lineages. In order to use the Ramalina decipiens group as a model system it is necessary to resolve the group's phylogeny and to clarify its species boundaries. In this study we attempt to do so following an integrative taxonomy approach. We constructed a phylogenetic tree based on six molecular markers, four of which are newly developed and generated competing species hypotheses based on molecular (species discovery strategies based on both single locus and multilocus datasets) and phenotypic data (unsupervised clustering algorithms based on morphology, secondary chemistry and geographic origin). We found that taxonomic diversity in the Ramalina decipiens group has been highly underestimated in previous studies. In consequence, we describe six new species, most of them single-island endemics and provide a key to the group. Phylogenetic relationships among species have been reconstructed with almost full support which, coupled with the endemic character of the group, makes it an excellent system for the study of island radiations in lichen-forming fungi. Citation: Blázquez M, Pérez-Vargas I, Garrido-Benavent I, et al. 2024. Endless forms most frustrating: disentangling species boundaries in the Ramalina decipiens group (Lecanoromycetes, Ascomycota), with the description of six new species and a key to the group. Persoonia 52: 44-93. https://doi.org/10.3767/persoonia.2024.52.03 .
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Affiliation(s)
- M. Blázquez
- Department of Mycology, Real Jardín Botánico (CSIC), Madrid, Spain
| | - I. Pérez-Vargas
- Department of Botany, Ecology and Plant Physiology, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - I. Garrido-Benavent
- Departament de Botànica i Geologia, Facultat de Ciències Biològiques, Universitat de València (UV), València, Spain
| | - M. Villar-dePablo
- Department of Microbial Ecology and Geomicrobiology, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain
| | - Y. Turégano
- Department of Mycology, Real Jardín Botánico (CSIC), Madrid, Spain
| | - C. Frías-López
- Departament de Genètica, Microbiologia i Estadística and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Barcelona, Spain
| | - A. Sánchez-Gracia
- Departament de Genètica, Microbiologia i Estadística and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Barcelona, Spain
| | - A. de los Ríos
- Department of Microbial Ecology and Geomicrobiology, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain
| | - F. Gasulla
- Department of Life Sciences, Universidad de Alcalá, Alcalá de Henares, Spain
| | - S. Pérez-Ortega
- Department of Mycology, Real Jardín Botánico (CSIC), Madrid, Spain
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229
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Yan S, Yu P, Liang G, Zhang D, Timko MP, Guo Q, Wu D. Three Alternaria Species, Including a New Species, Causing Leaf Spot Disease of Loquat ( Eriobotrya japonica) in China. PLANT DISEASE 2024; 108:2354-2366. [PMID: 38301220 DOI: 10.1094/pdis-07-23-1368-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Loquat (Eriobotrya japonica) is an economically important subtropical fruit crop in China. Field surveys conducted in different loquat orchards located in Chongqing, Sichuan, and Fujian provinces between 2017 and 2020 resulted in a collection of 56 Alternaria-like isolates from trees exhibiting symptoms of loquat leaf spot. Multigene phylogenetic analyses using seven gene regions, namely, ITS, gapdh, RPB2, tef1, Alt a 1, endoPG, and OPA10-2, showed that all the isolates belonged to the genus Alternaria, and supporting morphological analysis identified them as members of species A. alternata, A. gaisen, and A. chongqingensis sp. nov. In vitro and in vivo pathogenicity tests showed all the identified species to be pathogenic and able to cause leaf spot disease on loquat. Moreover, comprehensive phylogenetic analyses employing all combinations of the above seven gene sequences revealed the capability of Alt a 1-tef1-endoPG to provide a well-resolved gene tree for Alternaria spp. at the species level. This study adds to the current knowledge on an unknown species (A. chongqingensis sp. nov.) and is the first report of A. gaisen in loquat worldwide.
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Affiliation(s)
- Shuang Yan
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
- Institute of Fruit Science, Guizhou Academy of Agricultural Science, Guiyang, Guizhou 550006, China
| | - Peng Yu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Guolu Liang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Danhua Zhang
- Department of Biology, University of Virginia, Charlottesville, VA 22904, U.S.A
| | - Michael P Timko
- Department of Biology, University of Virginia, Charlottesville, VA 22904, U.S.A
| | - Qigao Guo
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Di Wu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
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Gärditz KF, Czesnick H. Paclitaxel - a Product of Fungal Secondary Metabolism or an Artefact? PLANTA MEDICA 2024; 90:726-735. [PMID: 38754434 PMCID: PMC11254485 DOI: 10.1055/a-2309-6298] [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: 02/02/2024] [Accepted: 04/05/2024] [Indexed: 05/18/2024]
Abstract
Taxol (common name: paclitaxel) is an extremely important component of drugs for the treatment of various cancers. Thirty years after the discovery of its effectiveness, a metabolic precursor of Taxol (10-deacetylbaccatin III) is still primarily extracted from needles of European yew trees. In order to meet the considerable demand, hopes were pinned on the possibilities of biotechnological production from the very beginning. In 1993, as if by chance, Taxol was supposedly discovered in fungi that grow endobiotically in yew trees. This finding aroused hopes of biotechnological use to produce fungal Taxol in large quantities in fermenters. It never came to that. Instead, a confusing flood of publications emerged that claimed to have detected Taxol in more and more eukaryotic and even prokaryotic species. However, researchers never reproduced these rather puzzling results, and they could certainly not be applied on an industrial scale. This paper will show that some of the misguided approaches were apparently based on a seemingly careless handling of sparse evidence and on at least questionable publications. Apparently, the desired gold rush of commercial exploitation was seductive. Scientific skepticism as an indispensable core of good scientific practice was often neglected, and the peer review process has not exerted its corrective effect. Self-critical reflection and more healthy skepticism could help to reduce the risk of such aberrations in drug development. This article uses this case study as a striking example to show what can be learned from the Taxol case in terms of research ethics and the avoidance of questionable research practices.
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Affiliation(s)
- Klaus Ferdinand Gärditz
- Institute of Public Law, University of Bonn, Bonn, Germany
- Ombudsman for suspected cases of scientific misconduct, University of Bonn, Bonn, Germany
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231
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Wei T, Wu Y, Zhang X, Zhang H, Crous P, Jiang Y. A comprehensive molecular phylogeny of Cephalotrichum and Microascus provides novel insights into their systematics and evolutionary history. PERSOONIA 2024; 52:119-160. [PMID: 39161634 PMCID: PMC11319840 DOI: 10.3767/persoonia.2024.52.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/12/2024] [Indexed: 08/21/2024]
Abstract
The genera Cephalotrichum and Microascus contain ecologically, morphologically and lifestyle diverse fungi in Microascaceae (Microascales, Sordariomycetes) with a world-wide distribution. Despite previous studies having elucidated that Cephalotrichum and Microascus are highly polyphyletic, the DNA phylogeny of many traditionally morphology-defined species is still poorly resolved, and a comprehensive taxonomic overview of the two genera is lacking. To resolve this issue, we integrate broad taxon sampling strategies and the most comprehensive multi-gene (ITS, LSU, tef1 and tub2) datasets to date, with fossil calibrations to address the phylogenetic relationships and divergence times among major lineages of Microascaceae. Two previously recognised main clades, Cephalotrichum (24 species) and Microascus (49 species), were re-affirmed based on our phylogenetic analyses, as well as the phylogenetic position of 15 genera within Microascaceae. In this study, we provide an up-to-date overview on the taxonomy and phylogeny of species belonging to Cephalotrichum and Microascus, as well as detailed descriptions and illustrations of 21 species of which eight are newly described. Furthermore, the divergence time estimates indicate that the crown age of Microascaceae was around 210.37 Mya (95 % HPD: 177.18-246.96 Mya) in the Late Triassic, and that Cephalotrichum and Microascus began to diversify approximately 27.07 Mya (95 % HPD: 20.47-34.37 Mya) and 70.46 Mya (95 % HPD: 56.96-86.24 Mya), respectively. Our results also demonstrate that multigene sequence data coupled with broad taxon sampling can help elucidate previously unresolved clade relationships. Citation: Wei TP, Wu YM, Zhang X, et al. 2024. A comprehensive molecular phylogeny of Cephalotrichum and Microascus provides novel insights into their systematics and evolutionary history. Persoonia 52: 119-160. https://doi.org/10.3767/persoonia.2024.52.05 .
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Affiliation(s)
- T.P. Wei
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China
| | - Y.M. Wu
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Taian, 271018, China
- Shandong Key Laboratory of Agricultural Microbiology, Taian, 271018, China
| | - X. Zhang
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China
- Institute of Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, 550009, Guizhou Province, China
| | - H. Zhang
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China
- Guizhou Academy of Testing and Analysis, Guiyang, 550014, Guizhou Province, China
| | - P.W. Crous
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - Y.L. Jiang
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China
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Nsibo DL, Barnes I, Berger DK. Recent advances in the population biology and management of maize foliar fungal pathogens Exserohilum turcicum, Cercospora zeina and Bipolaris maydis in Africa. FRONTIERS IN PLANT SCIENCE 2024; 15:1404483. [PMID: 39148617 PMCID: PMC11324496 DOI: 10.3389/fpls.2024.1404483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 07/01/2024] [Indexed: 08/17/2024]
Abstract
Maize is the most widely cultivated and major security crop in sub-Saharan Africa. Three foliar diseases threaten maize production on the continent, namely northern leaf blight, gray leaf spot, and southern corn leaf blight. These are caused by the fungi Exserohilum turcicum, Cercospora zeina, and Bipolaris maydis, respectively. Yield losses of more than 10% can occur if these pathogens are diagnosed inaccurately or managed ineffectively. Here, we review recent advances in understanding the population biology and management of the three pathogens, which are present in Africa and thrive under similar environmental conditions during a single growing season. To effectively manage these pathogens, there is an increasing adoption of breeding for resistance at the small-scale level combined with cultural practices. Fungicide usage in African cropping systems is limited due to high costs and avoidance of chemical control. Currently, there is limited knowledge available on the population biology and genetics of these pathogens in Africa. The evolutionary potential of these pathogens to overcome host resistance has not been fully established. There is a need to conduct large-scale sampling of isolates to study their diversity and trace their migration patterns across the continent.
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Affiliation(s)
- David L Nsibo
- Department of Plant and Soil Sciences, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - Irene Barnes
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - Dave K Berger
- Department of Plant and Soil Sciences, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
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Martins CSC, Delgado-Baquerizo M, Jayaramaiah RH, Tao D, Wang JT, Sáez-Sandino T, Liu H, Maestre FT, Reich PB, Singh BK. Aboveground and belowground biodiversity have complementary effects on ecosystem functions across global grasslands. PLoS Biol 2024; 22:e3002736. [PMID: 39141639 PMCID: PMC11324184 DOI: 10.1371/journal.pbio.3002736] [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: 03/27/2023] [Accepted: 07/05/2024] [Indexed: 08/16/2024] Open
Abstract
Grasslands are integral to maintaining biodiversity and key ecosystem services and are under threat from climate change. Plant and soil microbial diversity, and their interactions, support the provision of multiple ecosystem functions (multifunctionality). However, it remains virtually unknown whether plant and soil microbial diversity explain a unique portion of total variation or shared contributions to supporting multifunctionality across global grasslands. Here, we combine results from a global survey of 101 grasslands with a novel microcosm study, controlling for both plant and soil microbial diversity to identify their individual and interactive contribution to support multifunctionality under aridity and experimental drought. We found that plant and soil microbial diversity independently predict a unique portion of total variation in above- and belowground functioning, suggesting that both types of biodiversity complement each other. Interactions between plant and soil microbial diversity positively impacted multifunctionality including primary production and nutrient storage. Our findings were also climate context dependent, since soil fungal diversity was positively associated with multifunctionality in less arid regions, while plant diversity was strongly and positively linked to multifunctionality in more arid regions. Our results highlight the need to conserve both above- and belowground diversity to sustain grassland multifunctionality in a drier world and indicate climate change may shift the relative contribution of plant and soil biodiversity to multifunctionality across global grasslands.
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Affiliation(s)
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
| | | | - Dongxue Tao
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, China
| | - Jun-Tao Wang
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, Australia
| | - Tadeo Sáez-Sandino
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, Australia
| | - Hongwei Liu
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, Australia
| | - Fernando T. Maestre
- Environmental Sciences and Engineering, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
- Instituto Multidisciplinar para el Estudio del Medio “Ramón Margalef”, Universidad de Alicante, San Vicente del Raspeig, Alicante, Spain
| | - Peter B. Reich
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, Australia
- Department of Forest Resources, University of Minnesota, Saint Paul, Minnesota, United States of America
- Institute for Global Change Biology, School for Environment and Sustainability, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Brajesh K. Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, Australia
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Majid M, Wani AH, Ganai BA. Evaluating the Biocontrol Efficacy and Antioxidant Potential of Phellinus caribaeo-quercicola-A First Report Dual-Action Endophyte From Inula racemosa Hook. F. J Basic Microbiol 2024; 64:e2400080. [PMID: 39031570 DOI: 10.1002/jobm.202400080] [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: 02/15/2024] [Revised: 05/01/2024] [Accepted: 05/19/2024] [Indexed: 07/22/2024]
Abstract
Phellinus caribaeo-quercicola is a basidiomycetous fungus, isolated as an endophyte in this study from the healthy and symptomless leaves of Inula racemosa Hook. f., an important medicinal herb growing in Kashmir Himalaya. This study combines morphological, molecular and phylogenetic techniques to identify the fungal endophyte, using the ITS sequence of nrDNA. A detached leaf assay was conducted to assess the pathogenicity of the fungal endophyte suggesting its mutually symbiotic relationship with the host. The authors also investigated the antifungal potential of the isolated endophytic strain to ascertain its use as a biocontrol agent. The study shows that P. caribaeo-quercicola INL3-2 strain exhibits biocontrol activity against four key fungal phytopathogens that cause significant agronomic and economic losses: Aspergillus flavus, Aspergillus niger, Fusarium solani, and Fusarium oxysporum. Notably, P. caribaeo-quercicola INL3-2 strain is highly effective against A. flavus, with an inhibition percentage of 57.63%. In addition, this study investigates the antioxidant activity of P. caribaeo-quercicola INL3-2 strain crude extracts using ethyl acetate and methanol as solvents. The results showed that the methanolic fraction of P. caribaeo-quercicola exhibits potential as an antioxidant agent, with an IC50 value of 171.90 ± 1.15 µg/mL. This investigation is first of its kind and marks the initial report of this fungal basidiomycete, P. caribaeo-quercicola, as an endophyte associated with a medicinal plant. The findings of this study highlight the potential of P. caribaeo-quercicola INL3-2 strain as a dual-action agent with both biocontrol and antioxidant properties consistent with the medicinal properties of Inula racemosa. This endophytic fungus could be a promising source of natural compounds for use in agriculture, medicine, and beyond.
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Affiliation(s)
- Misbah Majid
- Section of Plant Pathology, Mycology and Microbiology Research Laboratory, Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Abdul H Wani
- Section of Plant Pathology, Mycology and Microbiology Research Laboratory, Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Bashir A Ganai
- Center of Research for Development, University of Kashmir, Srinagar, Jammu and Kashmir, India
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Lapalu N, Simon A, Lu A, Plaumann PL, Amselem J, Pigné S, Auger A, Koch C, Dallery JF, O'Connell RJ. Complete genome of the Medicago anthracnose fungus, Colletotrichum destructivum, reveals a mini-chromosome-like region within a core chromosome. Microb Genom 2024; 10:001283. [PMID: 39166978 PMCID: PMC11338638 DOI: 10.1099/mgen.0.001283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 07/22/2024] [Indexed: 08/23/2024] Open
Abstract
Colletotrichum destructivum (Cd) is a phytopathogenic fungus causing significant economic losses on forage legume crops (Medicago and Trifolium species) worldwide. To gain insights into the genetic basis of fungal virulence and host specificity, we sequenced the genome of an isolate from Medicago sativa using long-read (PacBio) technology. The resulting genome assembly has a total length of 51.7 Mb and comprises ten core chromosomes and two accessory chromosomes, all of which were sequenced from telomere to telomere. A total of 15, 631 gene models were predicted, including genes encoding potentially pathogenicity-related proteins such as candidate-secreted effectors (484), secondary metabolism key enzymes (110) and carbohydrate-active enzymes (619). Synteny analysis revealed extensive structural rearrangements in the genome of Cd relative to the closely related Brassicaceae pathogen, Colletotrichum higginsianum. In addition, a 1.2 Mb species-specific region was detected within the largest core chromosome of Cd that has all the characteristics of fungal accessory chromosomes (transposon-rich, gene-poor, distinct codon usage), providing evidence for exchange between these two genomic compartments. This region was also unique in having undergone extensive intra-chromosomal segmental duplications. Our findings provide insights into the evolution of accessory regions and possible mechanisms for generating genetic diversity in this asexual fungal pathogen.
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Affiliation(s)
- Nicolas Lapalu
- Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Adeline Simon
- Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Antoine Lu
- Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Peter-Louis Plaumann
- Division of Biochemistry, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Joëlle Amselem
- Université Paris-Saclay, INRAE, URGI, 78000 Versailles, France
| | - Sandrine Pigné
- Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Annie Auger
- Université Paris-Saclay, INRAE, UR BIOGER, 91120 Palaiseau, France
| | - Christian Koch
- Division of Biochemistry, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
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Ningsih BNS, Rukachaisirikul V, Phongpaichit S, Muanprasat C, Preedanon S, Sakayaroj J, Intayot R, Jungsuttiwong S. Talarostatin, a vermistatin derivative from the soil-derived fungus Talaromyces thailandensis PSU-SPSF059. Nat Prod Res 2024; 38:2535-2542. [PMID: 36919631 DOI: 10.1080/14786419.2023.2188209] [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: 08/08/2022] [Accepted: 02/28/2023] [Indexed: 03/16/2023]
Abstract
The soil-derived fungus Talaromyces thailandensis PSU-SPSF059 produced one new vermistatin derivative, talarostatin, and seven known compounds including two vermistatins, two chrodrimanins, two diphenyl ethers and one penicillide derivative. Extensive spectroscopic analysis was performed to identify their structures. The absolute configuration of talarostatin was determined by comparing the experimental and calculated electronic circular dichroism data. The antimicrobial and cytotoxic activities of the isolated secondary metabolites were also evaluated.
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Affiliation(s)
- Baiq Nila Sari Ningsih
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
- Department of Chemistry, Faculty of Mathematics and Natural Science, University of Mataram, Mataram, West Nusa Tenggara, Indonesia
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakarn, Thailand
| | - Sita Preedanon
- National Biobank of Thailand (NBT), National Science and Technology for Development Agency (NSTDA), Klong Luang, Pathum Thani, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Thasala, Nakhonsithammarat, Thailand
| | - Ratchadaree Intayot
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, Thailand
| | - Siriporn Jungsuttiwong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, Thailand
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Uwaremwe C, Bao W, Daoura BG, Mishra S, Zhang X, Shen L, Xia S, Yang X. Shift in the rhizosphere soil fungal community associated with root rot infection of Plukenetia volubilis Linneo caused by Fusarium and Rhizopus species. Int Microbiol 2024; 27:1231-1247. [PMID: 38158469 DOI: 10.1007/s10123-023-00470-x] [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: 10/12/2023] [Revised: 11/14/2023] [Accepted: 12/08/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Plukenetia volubilis Linneo is an oleaginous plant belonging to the family Euphorbiaceae. Due to its seeds containing a high content of edible oil and rich in vitamins, P. volubilis is cultivated as an economical plant worldwide. However, the cultivation and growth of P. volubilis is challenged by phytopathogen invasion leading to production loss. METHODS In the current study, we tested the pathogenicity of fungal pathogens isolated from root rot infected P. volubilis plant tissues by inoculating them into healthy P. volubilis seedlings. Metagenomic sequencing was used to assess the shift in the fungal community of P. volubilis rhizosphere soil after root rot infection. RESULTS Four Fusarium isolates and two Rhizopus isolates were found to be root rot causative agents of P. volubilis as they induced typical root rot symptoms in healthy seedlings. The metagenomic sequencing data showed that root rot infection altered the rhizosphere fungal community. In root rot infected soil, the richness and diversity indices increased or decreased depending on pathogens. The four most abundant phyla across all samples were Ascomycota, Glomeromycota, Basidiomycota, and Mortierellomycota. In infected soil, the relative abundance of each phylum increased or decreased depending on the pathogen and functional taxonomic classification. CONCLUSIONS Based on our results, we concluded that Fusarium and Rhizopus species cause root rot infection of P. volubilis. In root rot infected P. volubilis, the shift in the rhizosphere fungal community was pathogen-dependent. These findings may serve as a key point for a future study on the biocontrol of root rot of P. volubilis.
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Affiliation(s)
- Constantine Uwaremwe
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China.
| | - Wenjie Bao
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bachir Goudia Daoura
- Department of Biology, Faculty of Sciences and Technology, Dan Dicko Dankoulodo University, POBox, 465, Maradi, Niger
| | - Sandhya Mishra
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China
- National Field Scientific Observation and Research Station of Forest Ecosystem in Ailao Mountain, Yunnan, 665000, China
| | - Xianxian Zhang
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lingjie Shen
- College of Biology and Chemistry, Pu'er University, Pu'er, 665000, China
| | - Shangwen Xia
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China
- National Field Scientific Observation and Research Station of Forest Ecosystem in Ailao Mountain, Yunnan, 665000, China
| | - Xiaodong Yang
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China.
- National Field Scientific Observation and Research Station of Forest Ecosystem in Ailao Mountain, Yunnan, 665000, China.
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Quinteros-Urquieta C, Francois JP, Aguilar-Muñoz P, Orellana R, Villaseñor R, Moreira-Muñoz A, Molina V. Microbial Diversity of Soil in a Mediterranean Biodiversity Hotspot: Parque Nacional La Campana, Chile. Microorganisms 2024; 12:1569. [PMID: 39203411 PMCID: PMC11356564 DOI: 10.3390/microorganisms12081569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/22/2024] [Accepted: 07/25/2024] [Indexed: 09/03/2024] Open
Abstract
Parque Nacional La Campana (PNLC) is recognized worldwide for its flora and fauna, rather than for its microbial richness. Our goal was to characterize the structure and composition of microbial communities (bacteria, archaea and fungi) and their relationship with the plant communities typical of PNLC, such as sclerophyllous forest, xerophytic shrubland, hygrophilous forest and dry sclerophyllous forest, distributed along topoclimatic variables, namely, exposure, elevation and slope. The plant ecosystems, the physical and chemical properties of organic matter and the soil microbial composition were characterized by massive sequencing (iTag-16S rRNA, V4 and ITS1-5F) from the DNA extracted from the soil surface (5 cm, n = 16). A contribution of environmental variables, particularly related to each location, is observed. Proteobacteria (35.43%), Actinobacteria (32.86%), Acidobacteria (10.07%), Ascomycota (76.11%) and Basidiomycota (15.62%) were the dominant phyla. The beta diversity (~80% in its axes) indicates that bacteria and archaea are linked to their plant categories, where the xerophytic shrub stands out with the most particular microbial community. More specifically, Crenarchaeote, Humicola and Mortierella were dominant in the sclerophyllous forest; Chloroflexi, Cyanobacteria and Alternaria in the xerophytic shrubland; Solicoccozyma in the dry sclerophyllous forest; and Cladophialophora in the hygrophilous forest. In conclusion, the structure and composition of the microbial consortia is characteristic of PNLC's vegetation, related to its topoclimatic variables, which suggests a strong association within the soil microbiome.
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Affiliation(s)
- Carolina Quinteros-Urquieta
- Programa de Doctorado Interdisciplinario en Ciencias Ambientales, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
| | - Jean-Pierre Francois
- Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile; (J.-P.F.); (P.A.-M.); (R.O.)
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
| | - Polette Aguilar-Muñoz
- Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile; (J.-P.F.); (P.A.-M.); (R.O.)
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
- Centro de Investigación Oceanográfica COPAS COASTAL, Universidad de Concepción, Concepción 4070386, Chile
| | - Roberto Orellana
- Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile; (J.-P.F.); (P.A.-M.); (R.O.)
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
| | - Rodrigo Villaseñor
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
| | - Andres Moreira-Muñoz
- Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso 2362807, Chile;
| | - Verónica Molina
- Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile; (J.-P.F.); (P.A.-M.); (R.O.)
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
- Centro de Investigación Oceanográfica COPAS COASTAL, Universidad de Concepción, Concepción 4070386, Chile
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239
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Giraldo D, Saldarriaga C, García H, López M, González A. Genotypic and phenotypic characterization of resistance to fenhexamid, carboxin, and, prochloraz, in Botrytis cinerea isolates collected from cut roses in Colombia. Front Microbiol 2024; 15:1378597. [PMID: 39144215 PMCID: PMC11323744 DOI: 10.3389/fmicb.2024.1378597] [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: 01/29/2024] [Accepted: 06/18/2024] [Indexed: 08/16/2024] Open
Abstract
Gray mold, caused by Botrytis sp., is a significant disease in Colombian rose crops and its control depends primarily on the intensive use of chemically synthesized fungicides. Despite the importance of this pathogen, there is limited information in Colombian floriculture about molecular taxonomy of species, fungicide resistance of populations and their genetic mechanism of resistance. In this study, we analyze 12 isolates of this fungus collected from rose-producing crops in the Department of Cundinamarca and conducted phylogenetic analysis using HSP60, G3PDH, and RPB2 gene sequences. Additionally, we realize phenotypic and genotypic characterization of resistance to the fungicides fenhexamid, carboxin, and prochloraz, evaluating the in vitro EC50 and presence of mutations of target genes of each isolate. All isolates were characterized as Botrytis cinerea in the phylogenetic analysis and presents different levels of resistance to each fungicide. These levels are related to mutations in target genes, with predominancy of L195F and L400F in the ERG27 gene to fenhexamid resistance, H272R/Y in the SDHB gene for carboxin resistance, and Y136F in the CYP51 gene for prochloraz resistance. Finally, these mutations were not related to morphological changes. Collectively, this knowledge, presented for the first time to the Colombian floriculture, contribute to a better understanding of the genetic diversity and population of B. cinerea from rose-producing crops in the department of Cundinamarca, and serve as a valuable tool for making informed decisions regarding disease management, future research, and improving crop management and sustainability in the Colombian floriculture industry.
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Affiliation(s)
- Diego Giraldo
- Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Sede Bogotá, Bogotá, Colombia
| | - Catalina Saldarriaga
- Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Sede Bogotá, Bogotá, Colombia
| | | | - Miguel López
- Laboratorios Diagnofruit Colombia, Cajicá, Colombia
| | - Adriana González
- Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Sede Bogotá, Bogotá, Colombia
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240
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Martos I, Domínguez-Núñez JA. Soil Fungal Pathogens in Pinus pinaster Mature Reforestation: Silvicultural Treatments Effects. Pathogens 2024; 13:637. [PMID: 39204238 PMCID: PMC11356966 DOI: 10.3390/pathogens13080637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 07/10/2024] [Accepted: 07/22/2024] [Indexed: 09/03/2024] Open
Abstract
Soil fungal communities play a key role in multiple functions and ecosystem services within forest ecosystems. Today, forest ecosystems are subject to multiple environmental and anthropogenic disturbances (e.g., fire or forest management) that mainly lead to changes in vegetation as well as in plant-soil interactions. Soil pathogens play an important role in controlling plant diversity, ecosystem functions, and human and animal health. In this work we analyzed the response of soil plant pathogenic fungi to forest management in a Pinus pinaster reforestation. We started from an experimental design, in which forest thinning and gap cutting treatments were applied at different intensities and sizes, respectively. The fungal communities of plant pathogens in spring were described, and the effect of the silvicultural treatments was evaluated 5 years after their application, as were the possible relationships between soil plant pathogenic fungal communities and other environmental factors. Only a strong low thinning treatment (35% basal area) was able to generate homogeneous changes in soil pathogenic diversity. In the gaps, only the central position showed significant changes in the soil plant pathogenic fungi community.
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Affiliation(s)
| | - Jose Alfonso Domínguez-Núñez
- Department of Forest and Environmental Engineering and Management, Universidad Politécnica de Madrid, C/Jose Antonio Novais, 10, 28040 Madrid, Spain
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241
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Chen BK, Chan CH, Tsao A, Wang CK. Improvement of Echinacea purpurea and Ganoderma lucidum Extracts with Cell Model on Influenza A/B Infection. Molecules 2024; 29:3609. [PMID: 39125012 PMCID: PMC11314549 DOI: 10.3390/molecules29153609] [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: 06/27/2024] [Revised: 07/25/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
Since 2019, COVID-19 has been raging around the world. Respiratory viral infectious diseases such as influenza and respiratory syncytial virus (RSV) infection are also prevalent, with influenza having the ability to cause seasonal pandemics. While vaccines and antiviral drugs are available to prevent and treat disease, herbal extracts would be another option. This study investigated the inhibitory effects of extracts of Echinacea purpurea (EP) and Ganoderma lucidum (G. lucidum) and the advanced G. lucidum drink (AG) on influenza A/B viruses. To determine whether EP and G. lucidum extracts enhance cell immunity and thus prevent virus infection or act to directly suppress viruses, cell survival and hemagglutination (HA) assays were used in this study. Cells were treated with samples at different concentrations (each sample concentration was tested from the highest non-cytotoxic concentration) and incubated with influenza A/B for 24 h, with the results showing that both G. lucidum and EP extracts and mixtures exhibited the ability to enhance cell survival against viruses. In the HA assay, AG and EP extract showed good inhibitory effect on influenza A/B viruses. All of the samples demonstrated an improvement of the mitochondrial membrane potential and improved resistance to influenza A/B virus infection. EP and G. lucidum extracts at noncytotoxic concentrations increased cell viability, but only AG and EP extract directly decreased influenza virus titers. In conclusion, results indicate the ability of EP and G. lucidum extract to prevent viruses from entering cells by improving cell viability and mitochondrial dysfunction and EP extract showed direct inhibition on viruses and prevented viral infection at post-infection strategy.
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Affiliation(s)
- Bo-Kai Chen
- Department of Nutrition, Chung Shan Medical University, 110, Section 1, Jianguo North Road, Taichung 40201, Taiwan;
| | - Chi-Ho Chan
- Department of Microbiology and Immunology, Chung Shan Medical University, Taichung 40201, Taiwan;
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Arthur Tsao
- SFG Health Lab, Standard Foods Group, Taoyuan 337402, Taiwan;
| | - Chin-Kun Wang
- Department of Nutrition, Chung Shan Medical University, 110, Section 1, Jianguo North Road, Taichung 40201, Taiwan;
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242
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Zhu J, Huang Y, Chai W, Xia P. Decoding the Chloroplast Genome of Tetrastigma (Vitaceae): Variations and Phylogenetic Selection Insights. Int J Mol Sci 2024; 25:8290. [PMID: 39125860 PMCID: PMC11312916 DOI: 10.3390/ijms25158290] [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: 05/25/2024] [Revised: 07/26/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Tetrastigma (Vitaceae) is known for its ornamental, medicinal, and ecological significance. However, the structural and variational characteristics of the Tetrastigma chloroplast genome and their impact on phylogenetic relationships remain underexplored. This study utilized bioinformatics methods to assemble and annotate the chloroplast genomes of 10 Tetrastigma species and compare them with five previously sequenced species. This study analyzed gene composition, simple sequence repeats, and codon usage patterns, revealing a high A/T content, uniquely identified pentanucleotide repeats in five species and several preferred codons. In addition, comparative analyses were conducted of the chloroplast genomes of 15 Tetrastigma species, examining their structural differences and identifying polymorphic hotspots (rps16, rps16-trnQ, trnS, trnD, psbC-trnS-psbZ, accD-psaI, psbE-petL-petG, etc.) suitable for DNA marker development. Furthermore, phylogenetic and selective pressure analyses were performed based on the chloroplast genomes of these 15 Tetrastigma species, validating and elucidating intra-genus relationships within Tetrastigma. Futhermore, several genes under positive selection, such as atpF and accD, were identified, shedding light on the adaptive evolution of Tetrastigma. Utilizing 40 Vitaceae species, the divergence time of Tetrastigma was estimated, clarifying the evolutionary relationships within Tetrastigma relative to other genera. The analysis revealed diverse divergences of Tetrastigma in the Miocene and Pliocene, with possible ancient divergence events before the Eocene. Furthermore, family-level selective pressure analysis identified key features distinguishing Tetrastigma from other genera, showing a higher degree of purifying selection. This research enriches the chloroplast genome data for Tetrastigma and offers new insights into species identification, phylogenetic analysis, and adaptive evolution, enhancing our understanding of the genetic diversity and evolutionary history of these species.
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Affiliation(s)
- Junqiao Zhu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yang Huang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Weiguo Chai
- Institute of Biotechnology, Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China;
| | - Pengguo Xia
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
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243
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Vohník M, Josefiová J. Novel epiphytic root-fungus symbiosis in the Indo-Pacific seagrass Thalassodendron ciliatum from the Red Sea. MYCORRHIZA 2024:10.1007/s00572-024-01161-9. [PMID: 39073598 DOI: 10.1007/s00572-024-01161-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 07/01/2024] [Indexed: 07/30/2024]
Abstract
Symbioses with fungi are important and ubiquitous on dry land but underexplored in the sea. As yet only one seagrass has been shown to form a specific root-fungus symbiosis that resembles those occurring in terrestrial plants, namely the dominant long-lived Mediterranean species Posidonia oceanica (Alismatales: Posidoniaceae) forming a dark septate (DS) endophytic association with the ascomycete Posidoniomyces atricolor (Pleosporales: Aigialaceae). Using stereomicroscopy, light and scanning electron microscopy, and DNA cloning, here we describe a novel root-fungus symbiosis in the Indo-Pacific seagrass Thalassodendron ciliatum (Alismatales: Cymodoceaceae) from a site in the Gulf of Aqaba in the Red Sea. Similarly to P. oceanica, the mycobiont of T. ciliatum occurs more frequently in thinner roots that engage in nutrient uptake from the seabed and forms extensive hyphal mantles composed of DS hyphae on the root surface. Contrary to P. oceanica, the mycobiont occurs on the roots with root hairs and does not colonize its host intraradically. While the cloning revealed a relatively rich spectrum of fungi, they were mostly parasites or saprobes of uncertain origin and the identity of the mycobiont thus remains unknown. Symbioses of seagrasses with fungi are probably more frequent than previously thought, but their functioning and significance are unknown. Melanin present in DS hyphae slows down their decomposition and so is true for the colonized roots. DS fungi may in this way conserve organic detritus in the seagrasses' rhizosphere, thus contributing to blue carbon sequestration in seagrass meadows.
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Affiliation(s)
- Martin Vohník
- Department of Mycorrhizal Symbioses, Institute of Botany, Czech Academy of Sciences, Průhonice, Czechia.
- KROKODIVE.CZ, Údolní 219/47, Prague, 14700, Czechia.
| | - Jiřina Josefiová
- Laboratory of Molecular Biology and Bioinformatics, Institute of Botany, Czech Academy of Sciences, Lesní 322, Průhonice, 25243, Czechia
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244
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Chen X, Xu B. Insights into chemical components, health-promoting effects, and processing impact of golden chanterelle mushroom Cantharellus cibarius. Food Funct 2024; 15:7696-7732. [PMID: 38967456 DOI: 10.1039/d4fo00891j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Cantharellus cibarius (CC) is a culinary mushroom with significant commercial potential due to its diverse components and bioactive functions. CC is rich in carbohydrates, proteins, minerals, vitamins, and aroma compounds while being low in fat and calories. Moreover, CC contains an abundance of bioactive substances including phenolic compounds, vitamin precursors, and indole derivatives. Numerous studies have claimed that CC has diverse functions such as antioxidant, antimicrobial, immunoregulation, anti-inflammatory, antitumor, neuroprotective, antidiabetic, and prebiotic effects in in vivo or in vitro settings. In addition, a variety of thermal, physical, chemical, and biological treatment methods have been investigated for the processing and preservation of CC. Consequently, this study aims to present a comprehensive review of the chemical composition, health benefits, and processing techniques of CC. Furthermore, the issue of heavy metal accumulation in CC has been indicated and discussed. The study highlights the potential of CC as a functional food in the future while providing valuable insights for future research and identifying areas requiring further investigation.
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Affiliation(s)
- Xinlei Chen
- Food Science and Technology Program, Department of Life Sciences, BNU-HKBU United International College, Zhuhai, Guangdong 519087, China.
| | - Baojun Xu
- Food Science and Technology Program, Department of Life Sciences, BNU-HKBU United International College, Zhuhai, Guangdong 519087, China.
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245
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Jiménez-Maldonado MI, Islas-Osuna MA, León-Félix J, Tovar-Pedraza JM, Muy-Rangel MD. Glucanases and Chitinases in Mangifera indica: Identification, Classification, Phylogeny, and Expression Analysis of Defense Genes against Colletotrichum spp. Molecules 2024; 29:3556. [PMID: 39124963 PMCID: PMC11313699 DOI: 10.3390/molecules29153556] [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: 05/13/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Plant glucanases and chitinases are defense proteins that participate in pathogenesis; however, very little is known about the glucanase (GLUC) and chitinase (CHIT) gene families in mango. Some mango cultivars are of great economic importance and can be affected by anthracnose, a postharvest disease caused by fungi of the genus Colletotrichum spp. This study identified and characterized 23 putative glucanases and 16 chitinases in the mango genome cv. Tommy Atkins. We used phylogenetic analyses to classify the glucanases into three subclasses (A, B, and C) and the chitinases into four classes (I, II, IV, and V). Information on the salicylic, jasmonic acid, and ethylene pathways was obtained by analyzing the cis-elements of the GLUC and CHIT class I and IV gene promoters. The expression profile of GLUC, CHIT class I, and CHIT class IV genes in mango cv. Ataulfo inoculated with two Colletotrichum spp. revealed different profile expression related to these fungi's level of virulence. In general, this study provides the basis for the functional validation of these target genes with which the regulatory mechanisms used by glucanases and chitinases as defense proteins in mango can be elucidated.
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Affiliation(s)
- María Isabel Jiménez-Maldonado
- Centro de Investigación en Alimentación y Desarrollo, Coordinación Culiacán, Carretera a El Dorado km 5.5, Campo El Diez, Culiacán CP 80110, Sinaloa, Mexico; (M.I.J.-M.); (J.L.-F.); (J.M.T.-P.)
| | - María Auxiliadora Islas-Osuna
- Centro de Investigación en Alimentación y Desarrollo, Coordinación de Tecnología de Alimentos de Origen Vegetal, Carretera Gustavo Enrique Astiazarán Rosas, No. 46, La Victoria, Hermosillo CP 83304, Sonora, Mexico;
| | - Josefina León-Félix
- Centro de Investigación en Alimentación y Desarrollo, Coordinación Culiacán, Carretera a El Dorado km 5.5, Campo El Diez, Culiacán CP 80110, Sinaloa, Mexico; (M.I.J.-M.); (J.L.-F.); (J.M.T.-P.)
| | - Juan Manuel Tovar-Pedraza
- Centro de Investigación en Alimentación y Desarrollo, Coordinación Culiacán, Carretera a El Dorado km 5.5, Campo El Diez, Culiacán CP 80110, Sinaloa, Mexico; (M.I.J.-M.); (J.L.-F.); (J.M.T.-P.)
| | - María Dolores Muy-Rangel
- Centro de Investigación en Alimentación y Desarrollo, Coordinación Culiacán, Carretera a El Dorado km 5.5, Campo El Diez, Culiacán CP 80110, Sinaloa, Mexico; (M.I.J.-M.); (J.L.-F.); (J.M.T.-P.)
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246
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Takahashi JA, de Queiroz LL, Vidal DM. A Close View of the Production of Bioactive Fungal Metabolites Mediated by Chromatin Modifiers. Molecules 2024; 29:3536. [PMID: 39124942 PMCID: PMC11314158 DOI: 10.3390/molecules29153536] [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: 06/18/2024] [Revised: 07/19/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
Secondary metabolites produced by fungi are well known for their biological properties, which play important roles in medicine. These metabolites aid in managing infections and treating chronic illnesses, thereby contributing substantially to human health improvement. Despite this extensive knowledge, the vast biodiversity and biosynthetic potential of fungi is still largely unexplored, highlighting the need for further research in natural products. In this review, several secondary metabolites of fungal origin are described, emphasizing novel structures and skeletons. The detection and characterization of these metabolites have been significantly facilitated by advancements in analytical systems, particularly modern hyphenated liquid chromatography/mass spectrometry. These improvements have primarily enhanced sensitivity, resolution, and analysis flow velocity. Since the in vitro production of novel metabolites is often lower than the re-isolation of known metabolites, understanding chromatin-based alterations in fungal gene expression can elucidate potential pathways for discovering new metabolites. Several protocols for inducing metabolite production from different strains are discussed, demonstrating the need for uniformity in experimental procedures to achieve consistent biosynthetic activation.
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Affiliation(s)
- Jacqueline Aparecida Takahashi
- Departamento de Química, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil; (L.L.d.Q.); (D.M.V.)
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247
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Krzewicka B, Parnikoza I, Ivanets V, Yevchun H, Smykla J. Diversity and distribution of the lichen genus Umbilicaria in the Argentine Islands-Kyiv Peninsula region, the maritime Antarctic. Sci Rep 2024; 14:17310. [PMID: 39068176 PMCID: PMC11283502 DOI: 10.1038/s41598-024-65806-7] [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: 03/15/2024] [Accepted: 06/24/2024] [Indexed: 07/30/2024] Open
Abstract
This paper documents the occurrence of the genus Umbilicaria in the Argentine Islands-Kyiv Peninsula region of the Graham Coast in the maritime Antarctic. The presence of seven Umbilicaria species (U. africana, U. antarctica, U. aprina, U. decussata, U. kappenii, U. nylanderiana and U. umbilicarioides) in the ice-free areas of the Argentine Islands-Kyiv Peninsula region were confirmed. The species of U. africana and U. aprina are documented from the studied region for the first time. This study moves the southern distribution limit of U. africana about 300 km to the south: to the Argentine Islands-Kyiv Peninsula region. The distribution maps of Umbilicaria species for the studied region and maritime Antarctica are prepared.
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Affiliation(s)
- Beata Krzewicka
- W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512, Kraków, Poland.
| | - Ivan Parnikoza
- State Institution National Antarctic Scientific Center of Ukraine, Ministry of Education and Science of Ukraine, Taras Shevchenko 16, 01601, Kyiv, Ukraine.
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo 150, 03143, Kyiv, Ukraine.
- National University of Kyiv-Mohyla Academy, Skovorody 2, 04070, Kyiv, Ukraine.
| | - Viktoria Ivanets
- State Institution National Antarctic Scientific Center of Ukraine, Ministry of Education and Science of Ukraine, Taras Shevchenko 16, 01601, Kyiv, Ukraine
| | - Hanna Yevchun
- State Institution National Antarctic Scientific Center of Ukraine, Ministry of Education and Science of Ukraine, Taras Shevchenko 16, 01601, Kyiv, Ukraine
| | - Jerzy Smykla
- Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120, Kraków, Poland
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248
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Wennrich JP, Holzenkamp C, Kolařík M, Maier W, Mándi A, Kurtán T, Ashrafi S, Ebada SS, Stadler M. Dactylfungins and Tetralones: Bioactive Metabolites from a Nematode-Associated Laburnicola nematophila. JOURNAL OF NATURAL PRODUCTS 2024; 87:1860-1871. [PMID: 39012621 PMCID: PMC11287750 DOI: 10.1021/acs.jnatprod.4c00623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/29/2024] [Accepted: 06/30/2024] [Indexed: 07/17/2024]
Abstract
A chemical investigation of Laburnicola nematophila, isolated from cysts of the plant parasitic nematode Heterodera filipjevi, affored three dactylfungin derivatives (1-3) and three tetralone congeners (4-6). Dactylfungin C (1), laburnicolin (4), and laburnicolenone (5) are previously undescribed natural products. Chemical structures of the isolated compounds were determined based on 1D and 2D NMR spectroscopic analyses together with HR-ESI-MS spectrometry and comparison with data reported in the literature. The relative configurations of compounds 1, 2, and 4-6 were determined based on their ROESY data and analysis of their coupling constants (J values). The absolute configurations of 4-6 were determined through the comparison of their measured and calculated TDDFT-ECD spectra. Compounds 1-3 were active against azole-resistant Aspergillus fumigatus.
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Affiliation(s)
- Jan-Peer Wennrich
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research (HZI) and German Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Caren Holzenkamp
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research (HZI) and German Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Miroslav Kolařík
- Institute
of Microbiology, Czech Academy of Science, Vídeňská 1083, 14220 Prague, Czech Republic
| | - Wolfgang Maier
- Institute
for Epidemiology and Pathogen Diagonstics, Julius Kühn Institut (JKI) - Federal Research Centre for Cultivated
Plants, Messeweg 11-12, 38104 Braunschweig, Germany
| | - Attila Mándi
- Department
of Organic Chemistry, University of Debrecen, P.O. Box 400, 4002 Debrecen, Hungary
| | - Tibor Kurtán
- Department
of Organic Chemistry, University of Debrecen, P.O. Box 400, 4002 Debrecen, Hungary
| | - Samad Ashrafi
- Institute
for Epidemiology and Pathogen Diagonstics, Julius Kühn Institut (JKI) - Federal Research Centre for Cultivated
Plants, Messeweg 11-12, 38104 Braunschweig, Germany
- Institute
for Crop and Soil Science, Julius Kühn
Institute (JKI) − Federal Research Centre for Cultivated Plants, Bundesallee 58, 38116 Braunschweig, Germany
| | - Sherif S. Ebada
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research (HZI) and German Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
- Department
of Pharmacognosy, Faculty of Pharmacy, Ain
Shams University, Cairo 11566, Egypt
| | - Marc Stadler
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research (HZI) and German Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
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249
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Maw ZA, Grunwald AL, Haltli BA, Cartmell C, Kerr RG. Discovery of the Lipopeptides Albubactins A-H from Streptomyces albidoflavus RKJM0023 via Chemical Elicitation with Rhamnolipids and Synthesis of Albubactin A. JOURNAL OF NATURAL PRODUCTS 2024; 87:1682-1693. [PMID: 38940698 DOI: 10.1021/acs.jnatprod.3c01234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The marine tunicate-derived Streptomyces albidoflavus RKJM0023 was cultured in the presence of a rhamnolipid mixture in an effort to elicit the production of silent natural products. MS/MS-based molecular networking analysis enhanced with nonparametric statistics highlighted the upregulation of a molecular cluster (Kruskal-Wallis p = 1.6 e-6 for 1) in which no MS/MS features had library matches. Targeted isolation of these features resulted in the discovery of nine new N-acylated lipopeptides, albubactins A-H (1-8) each containing a unique glutamine tripeptide and a C-terminal ethyl ester moiety. Three related albubactin acids A-C (9-11) lacking the ethyl ester were also identified. NMR spectroscopy and UPLC-HR-ESI-MS/MS demonstrated that the albubactins were obtained as mixtures that shared a common m/z and differed only in their acylated terminal groups. Due to the complex spectroscopic elucidation with many overlapping shifts, a total synthesis of albubactin A (1) was completed and used to determine the absolute configuration of the new albubactins.
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Affiliation(s)
- Zacharie A Maw
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
| | - Alyssa L Grunwald
- Nautilus Biosciences, Croda Canada, Charlottetown, PEI C1A 4P3, Canada
| | - Bradley A Haltli
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
- Nautilus Biosciences, Croda Canada, Charlottetown, PEI C1A 4P3, Canada
| | - Christopher Cartmell
- Department of Pharmacology, College of Medicine; Comprehensive Center for Pain and Addiction, University of Arizona, Tucson, AZ 85724, United States
| | - Russell G Kerr
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
- Department of Chemistry, Faculty of Science, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, Canada
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Dimitrov R, Gouliamova D, Guéorguiev B, Smith M, Groenewald M, Boekhout T. First DNA Barcoding Survey in Bulgaria Unveiled Huge Diversity of Yeasts in Insects. INSECTS 2024; 15:566. [PMID: 39194771 DOI: 10.3390/insects15080566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 08/29/2024]
Abstract
In this study, we conducted a comprehensive survey aimed at assessing the diversity of yeast species inhabiting the guts of various insect species collected mainly from two Bulgarian National Parks, namely, Rila, and Pirin. The insect specimens encompass a broad taxonomic spectrum, including representatives from Coleoptera, Orthoptera, Lepidoptera, Hymenoptera, Dermaptera, Isopoda, and Collembola. Yeast strains were identified with DNA barcoding using the ribosomal markers, specifically, the D1/D2 domains of the ribosomal large subunit (LSU) and the internal transcribed spacers regions ITS 1 + 2 (ITS). The analysis unveiled the presence of 89 ascomycetous and 18 basidiomycetous yeast isolates associated with the insect specimens. Furthermore, our study identified 18 hitherto unknown yeast species.
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Affiliation(s)
- Roumen Dimitrov
- Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, G. Bonchev 8, 1113 Sofia, Bulgaria
| | - Dilnora Gouliamova
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, G. Bonchev 26, 1113 Sofia, Bulgaria
| | - Borislav Guéorguiev
- National Museum of Natural History, Bulgarian Academy of Sciences, bul. "Tsar Osvoboditel" 1, 1000 Sofia, Bulgaria
| | - Maudy Smith
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Marizeth Groenewald
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Teun Boekhout
- The Yeast Foundation, 1015 JR Amsterdam, The Netherlands
- College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
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