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de Freitas STF, Silva FG, Bessa LA, de Souza UJB, Augusto DSS, de Faria GS, Vitorino LC. Low microbial diversity, yeast prevalence, and nematode-trapping fungal presence in fungal colonization and leaf microbiome of Serjania erecta. Sci Rep 2024; 14:15456. [PMID: 38965317 PMCID: PMC11224404 DOI: 10.1038/s41598-024-66161-3] [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: 02/08/2024] [Accepted: 06/27/2024] [Indexed: 07/06/2024] Open
Abstract
Medicinal plant microbiomes undergo selection due to secondary metabolite presence. Resident endophytic/epiphytic microorganisms directly influence plant's bioactive compound synthesis. Hypothesizing low microbial diversity in Serjania erecta leaves, we assessed leaf colonization by epiphytic and endophytic fungi. Given its traditional medicinal importance, we estimated diversity in the endophytic fungal microbiome. Analyses included scanning electron microscopy (SEM), isolation of cultivable species, and metagenomics. Epiphytic fungi interacted with S. erecta leaf tissues, horizontally transmitted via stomata/trichome bases, expressing traits for nematode trapping. Cultivable endophytic fungi, known for phytopathogenic habits, didn't induce dysbiosis symptoms. This study confirms low leaf microbiome diversity in S. erecta, with a tendency towards more fungal species, likely due to antibacterial secondary metabolite selection. The classification of Halicephalobus sp. sequence corroborated the presence of nematode eggs on the epidermal surface of S. erecta by SEM. In addition, we confirmed the presence of methanogenic archaea and a considerable number of methanotrophs of the genus Methylobacterium. The metagenomic study of endophytic fungi highlighted plant growth-promoting yeasts, mainly Malassezia, Leucosporidium, Meyerozyma, and Hannaella. Studying endophytic fungi and S. erecta microbiomes can elucidate their impact on beneficial bioactive compound production, on the other hand, it is possible that the bioactive compounds produced by this plant can recruit specific microorganisms, impacting the biological system.
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Affiliation(s)
- Samylla Tássia Ferreira de Freitas
- Laboratory of Agricultural Microbiology, Instituto Federal Goiano - campus Rio Verde, Highway Sul Goiana, Km 01, Rio Verde, GO, 75901-970, Brazil
| | - Fabiano Guimarães Silva
- Laboratory of Plant Mineral Nutrition, Instituto Federal Goiano, campus Rio Verde, Rio Verde, Brazil
| | - Layara Alexandre Bessa
- Laboratory of Plant Mineral Nutrition, Instituto Federal Goiano, campus Rio Verde, Rio Verde, Brazil
| | - Ueric José Borges de Souza
- Bioinformatics and Biotechnology Laboratory, Federal University of Tocantins, Campus of Gurupi, Gurupi, TO, 77410-570, Brazil
| | - Damiana Souza Santos Augusto
- Laboratory of Agricultural Microbiology, Instituto Federal Goiano - campus Rio Verde, Highway Sul Goiana, Km 01, Rio Verde, GO, 75901-970, Brazil
| | - Giselle Santos de Faria
- Laboratory of Agricultural Microbiology, Instituto Federal Goiano - campus Rio Verde, Highway Sul Goiana, Km 01, Rio Verde, GO, 75901-970, Brazil
| | - Luciana Cristina Vitorino
- Laboratory of Agricultural Microbiology, Instituto Federal Goiano - campus Rio Verde, Highway Sul Goiana, Km 01, Rio Verde, GO, 75901-970, Brazil.
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Hameed A, Poznanski P, Noman M, Ahmed T, Iqbal A, Nadolska-Orczyk A, Orczyk W. Barley Resistance to Fusarium graminearum Infections: From Transcriptomics to Field with Food Safety Concerns. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14571-14587. [PMID: 36350344 DOI: 10.1021/acs.jafc.2c05488] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Global climate change and the urgency to transform food crops require substantial breeding efforts to meet the food security challenges. Barley, an important cereal, has remained a preferential host of phytotoxic diseases caused by the Fusarium graminearum that not only severely reduces the crop yield but also compromises its food quality due to the accumulation of mycotoxins. To develop resistance against Fusarium infections, a better understanding of the host-pathogen interaction is inevitable and could be tracked through molecular insights. Here, we focused precisely on the potential gene targets that are exclusive to this devastating pathosystem and could be harnessed for fast breeding of barley. We also discuss the eco-friendly applications of nanobio hybrid and the CRISPR technology for barley protection. This review covers the critical information gaps within the subject and may be useful for the sustainable improvement of barley from the perspective of food and environmental safety concerns.
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Affiliation(s)
- Amir Hameed
- Plant Breeding and Acclimatization Institute - National Research Institute, Radzików 05-870, Błonie, Poland
| | - Pawel Poznanski
- Plant Breeding and Acclimatization Institute - National Research Institute, Radzików 05-870, Błonie, Poland
| | - Muhammad Noman
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Temoor Ahmed
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Adnan Iqbal
- Plant Breeding and Acclimatization Institute - National Research Institute, Radzików 05-870, Błonie, Poland
| | - Anna Nadolska-Orczyk
- Plant Breeding and Acclimatization Institute - National Research Institute, Radzików 05-870, Błonie, Poland
| | - Wacław Orczyk
- Plant Breeding and Acclimatization Institute - National Research Institute, Radzików 05-870, Błonie, Poland
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Ueda K, Nakajima Y, Inoue H, Kobayashi K, Nishiuchi T, Kimura M, Yaeno T. Nicotinamide Mononucleotide Potentiates Resistance to Biotrophic Invasion of Fungal Pathogens in Barley. Int J Mol Sci 2021; 22:ijms22052696. [PMID: 33800043 PMCID: PMC7962114 DOI: 10.3390/ijms22052696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/19/2021] [Accepted: 02/26/2021] [Indexed: 11/16/2022] Open
Abstract
Nicotinamide mononucleotide (NMN), a precursor of nicotinamide adenine dinucleotide (NAD), induces disease resistance to the Fusarium head blight fungus Fusarium graminearum in Arabidopsis and barley, but it is unknown at which stage of the infection it acts. Since the rate of haustorial formation of an obligate biotrophic barley powdery mildew fungus Blumeria graminis f. sp. hordei (Bgh) was significantly reduced in NMN-treated coleoptile epidermal cells, the possibility that NMN induces resistance to the biotrophic stage of F. graminearum was investigated. The results show that NMN treatment caused the wandering of hyphal growth and suppressed the formation of appressoria-like structures. Furthermore, we developed an experimental system to monitor the early stage of infection in real-time and analyzed the infection behavior. We observed that the hyphae elongated windingly by NMN treatment. These results suggest that NMN potentiates resistance to the biotrophic invasion of F. graminearum as well as Bgh.
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Affiliation(s)
- Kana Ueda
- Department of Agriculture, Ehime University, Tarumi, Matsuyama, Ehime 790-8566, Japan; (K.U.); (H.I.); (K.K.)
| | - Yuichi Nakajima
- Division of Molecular and Cellular Biology, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8601, Japan; (Y.N.); (M.K.)
| | - Hiroshi Inoue
- Department of Agriculture, Ehime University, Tarumi, Matsuyama, Ehime 790-8566, Japan; (K.U.); (H.I.); (K.K.)
| | - Kappei Kobayashi
- Department of Agriculture, Ehime University, Tarumi, Matsuyama, Ehime 790-8566, Japan; (K.U.); (H.I.); (K.K.)
| | - Takumi Nishiuchi
- Institution for Gene Research, Advanced Science Research Centre, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-0934, Japan;
| | - Makoto Kimura
- Division of Molecular and Cellular Biology, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8601, Japan; (Y.N.); (M.K.)
| | - Takashi Yaeno
- Department of Agriculture, Ehime University, Tarumi, Matsuyama, Ehime 790-8566, Japan; (K.U.); (H.I.); (K.K.)
- Correspondence:
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4
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Imboden L, Afton D, Trail F. Surface interactions of Fusarium graminearum on barley. MOLECULAR PLANT PATHOLOGY 2018; 19:1332-1342. [PMID: 28940853 PMCID: PMC6638126 DOI: 10.1111/mpp.12616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 08/22/2017] [Accepted: 09/18/2017] [Indexed: 05/10/2023]
Abstract
The filamentous fungus Fusarium graminearum, a devastating pathogen of barley (Hordeum vulgare L.), produces mycotoxins that pose a health hazard. To investigate the surface interactions of F. graminearum on barley, we focused on barley florets, as the most important infection site leading to grain contamination. The fungus interacted with silica-accumulating cells (trichomes and silica/cork cell pairs) on the host surface. We identified variation in trichome-type cells between two-row and six-row barley, and in the role of specific epidermal cells in the ingress of F. graminearum into barley florets. Prickle-type trichomes functioned to trap conidia and were sites of fungal penetration. Infections of more mature florets supported the spread of hyphae into the vascular bundles, whereas younger florets did not show this spread. These differences related directly to the timing and location of increases in silica content during maturation. Focal accumulation of cellulose in infected paleae of two-row and six-row barley indicated that the response is in part linked to trichome type. Overall, silica-accumulating epidermal cells had an expanded role in barley, serving to trap conidia, provide sites for fungal ingress and initiate resistance responses, suggesting a role for silica in pathogen establishment.
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Affiliation(s)
- Lori Imboden
- Department of Plant BiologyMichigan State UniversityEast LansingMI 48824USA
| | - Drew Afton
- Department of Plant BiologyMichigan State UniversityEast LansingMI 48824USA
| | - Frances Trail
- Department of Plant BiologyMichigan State UniversityEast LansingMI 48824USA
- Department of Plant, Soil and Microbial SciencesMichigan State UniversityEast LansingMI 48824USA
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Blacutt AA, Gold SE, Voss KA, Gao M, Glenn AE. Fusarium verticillioides: Advancements in Understanding the Toxicity, Virulence, and Niche Adaptations of a Model Mycotoxigenic Pathogen of Maize. PHYTOPATHOLOGY 2018; 108:312-326. [PMID: 28971734 DOI: 10.1094/phyto-06-17-0203-rvw] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The importance of understanding the biology of the mycotoxigenic fungus Fusarium verticillioides and its various microbial and plant host interactions is critical given its threat to maize, one of the world's most valuable food crops. Disease outbreaks and mycotoxin contamination of grain threaten economic returns and have grave implications for human and animal health and food security. Furthermore, F. verticillioides is a member of a genus of significant phytopathogens and, thus, data regarding its host association, biosynthesis of secondary metabolites, and other metabolic (degradative) capabilities are consequential to both basic and applied research efforts across multiple pathosystems. Notorious among its secondary metabolites are the fumonisin mycotoxins, which cause severe animal diseases and are implicated in human disease. Additionally, studies of these mycotoxins have led to new understandings of F. verticillioides plant pathogenicity and provide tools for research into cellular processes and host-pathogen interaction strategies. This review presents current knowledge regarding several significant lines of F. verticillioides research, including facets of toxin production, virulence, and novel fitness strategies exhibited by this fungus across rhizosphere and plant environments.
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Affiliation(s)
- Alex A Blacutt
- First and fourth authors: Department of Plant Pathology, University of Georgia, Athens 30602; and second, third, and fifth authors: United States Department of Agriculture-Agricultural Research Service, U.S. National Poultry Research Center, Toxicology and Mycotoxin Research Unit, Athens, GA 30605-2720
| | - Scott E Gold
- First and fourth authors: Department of Plant Pathology, University of Georgia, Athens 30602; and second, third, and fifth authors: United States Department of Agriculture-Agricultural Research Service, U.S. National Poultry Research Center, Toxicology and Mycotoxin Research Unit, Athens, GA 30605-2720
| | - Kenneth A Voss
- First and fourth authors: Department of Plant Pathology, University of Georgia, Athens 30602; and second, third, and fifth authors: United States Department of Agriculture-Agricultural Research Service, U.S. National Poultry Research Center, Toxicology and Mycotoxin Research Unit, Athens, GA 30605-2720
| | - Minglu Gao
- First and fourth authors: Department of Plant Pathology, University of Georgia, Athens 30602; and second, third, and fifth authors: United States Department of Agriculture-Agricultural Research Service, U.S. National Poultry Research Center, Toxicology and Mycotoxin Research Unit, Athens, GA 30605-2720
| | - Anthony E Glenn
- First and fourth authors: Department of Plant Pathology, University of Georgia, Athens 30602; and second, third, and fifth authors: United States Department of Agriculture-Agricultural Research Service, U.S. National Poultry Research Center, Toxicology and Mycotoxin Research Unit, Athens, GA 30605-2720
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Oldenburg E, Höppner F, Ellner F, Weinert J. Fusarium diseases of maize associated with mycotoxin contamination of agricultural products intended to be used for food and feed. Mycotoxin Res 2017; 33:167-182. [PMID: 28455556 DOI: 10.1007/s12550-017-0277-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/05/2017] [Accepted: 04/06/2017] [Indexed: 12/20/2022]
Abstract
Infections of maize with phytopathogenic and toxinogenic Fusarium spp. may occur throughout the cultivation period. This can cause different types of diseases in vegetative and generative organs of the plant. Along with these infections, mycotoxins are often produced and accumulated in affected tissues, which could pose a significant risk on human and animal health when entering the food and feed chain. Most important fungal species infecting European maize belong to the Fusarium sections Discolour and Liseola, the first being more prevalent in cooler and humid climate regions than the second predominating in warmer and dryer areas. Coexistence of several Fusarium spp. pathogens in growing maize under field conditions is the usual case and may lead to multi-contamination with mycotoxins like trichothecenes, zearalenone and fumonisins. The pathways how the fungi gain access to the target organs of the plant are extensively described in relation to specific symptoms of typical rot diseases regarding ears, kernels, rudimentary ears, roots, stem, leaves, seed and seedlings. Both Gibberella and Fusarium ear rots are of major importance in affecting the toxinogenic quality of grain or ear-based products as well as forage maize used for human or animal nutrition. Although rudimentary ears may contain high amounts of Fusarium toxins, the contribution to the contamination of forage maize is minor due to their small proportion on the whole plant dry matter yield. The impact of foliar diseases on forage maize contamination is regarded to be low, as Fusarium infections are restricted to some parts on the leaf sheaths and husks. Mycotoxins produced in rotted basal part of the stem may contribute to forage maize contamination, but usually remain in the stubbles after harvest. As the probability of a more severe disease progression is increasing with a prolonged cultivation period, maize should be harvested at the appropriate maturity stage to keep Fusarium toxin contamination as low as possible. Ongoing surveillance and research is needed to recognise changes in the spectrum of dominating Fusarium pathogens involved in mycotoxin contamination of maize to ensure safety in the food and feed chain.
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Affiliation(s)
- Elisabeth Oldenburg
- Julius Kühn-Institute (JKI), Institute for Plant Protection in Field Crops and Grassland, Messeweg 11/12, 38104, Braunschweig, Germany.
| | - Frank Höppner
- Julius Kühn-Institute (JKI), Institute for Crop and Soil Science, Bundesallee 50, 38116, Braunschweig, Germany
| | - Frank Ellner
- Institute for Ecological Chemistry, Plant Analysis and Stored Products, Julius Kühn-Institute (JKI), Königin-Luise-Strasse 19, 14195, Berlin, Germany
| | - Joachim Weinert
- Department of Plant Protection, The Chamber of Agriculture Lower Saxony, Wunstorfer Landstrasse 9, 30453, Hannover, Germany
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