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Cai E, Jia H, Feng R, Zheng W, Li L, Zhang L, Jiang Z, Chang C. Cytochrome c-peroxidase modulates ROS homeostasis to regulate the sexual mating of Sporisorium scitamineum. Microbiol Spectr 2023; 11:e0205723. [PMID: 37819114 PMCID: PMC10714796 DOI: 10.1128/spectrum.02057-23] [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: 05/16/2023] [Accepted: 08/28/2023] [Indexed: 10/13/2023] Open
Abstract
IMPORTANCE Reactive oxygen species play an important role in pathogen-plant interactions. In fungi, cytochrome c-peroxidase maintains intracellular ROS homeostasis by utilizing H2O2 as an electron acceptor to oxidize ferrocytochrome c, thereby contributing to disease pathogenesis. In this study, our investigation reveals that the cytochrome c-peroxidase encoding gene, SsCCP1, not only plays a key role in resisting H2O2 toxicity but is also essential for the mating/filamentation and pathogenicity of S. scitamineum. We further uncover that SsCcp1 mediates the expression of SsPrf1 by maintaining intracellular ROS homeostasis to regulate S. scitamineum mating/filamentation. Our findings provide novel insights into how cytochrome c-peroxidase regulates sexual reproduction in phytopathogenic fungi, presenting a theoretical foundation for designing new disease control strategies.
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Affiliation(s)
- Enping Cai
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, Guangdong, China
- Integrate Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Huan Jia
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, Guangdong, China
- Integrate Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Ruqing Feng
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, Guangdong, China
- Integrate Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Wenqiang Zheng
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, Guangdong, China
- Integrate Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Lei Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, Guangdong, China
- Integrate Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Li Zhang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, Guangdong, China
- Integrate Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Zide Jiang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, Guangdong, China
| | - Changqing Chang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Microbial Signals and Disease Control, South China Agricultural University, Guangzhou, Guangdong, China
- Integrate Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou, China
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Lin YH, Xu MY, Hsu CC, Damei FA, Lee HC, Tsai WL, Hoang CV, Chiang YR, Ma LS. Ustilago maydis PR-1-like protein has evolved two distinct domains for dual virulence activities. Nat Commun 2023; 14:5755. [PMID: 37716995 PMCID: PMC10505147 DOI: 10.1038/s41467-023-41459-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 09/05/2023] [Indexed: 09/18/2023] Open
Abstract
The diversification of effector function, driven by a co-evolutionary arms race, enables pathogens to establish compatible interactions with hosts. Structurally conserved plant pathogenesis-related PR-1 and PR-1-like (PR-1L) proteins are involved in plant defense and fungal virulence, respectively. It is unclear how fungal PR-1L counters plant defense. Here, we show that Ustilago maydis UmPR-1La and yeast ScPRY1, with conserved phenolic resistance functions, are Ser/Thr-rich region mediated cell-surface localization proteins. However, UmPR-1La has gained specialized activity in sensing phenolics and eliciting hyphal-like formation to guide fungal growth in plants. Additionally, U. maydis hijacks maize cathepsin B-like 3 (CatB3) to release functional CAPE-like peptides by cleaving UmPR-1La's conserved CNYD motif, subverting plant CAPE-primed immunity and promoting fungal virulence. Surprisingly, CatB3 avoids cleavage of plant PR-1s, despite the presence of the same conserved CNYD motif. Our work highlights that UmPR-1La has acquired additional dual roles to suppress plant defense and sustain the infection process of fungal pathogens.
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Affiliation(s)
- Yu-Han Lin
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115201, Taiwan
| | - Meng-Yun Xu
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115201, Taiwan
| | - Chuan-Chih Hsu
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115201, Taiwan
| | | | - Hui-Chun Lee
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115201, Taiwan
| | - Wei-Lun Tsai
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115201, Taiwan
| | - Cuong V Hoang
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115201, Taiwan
| | - Yin-Ru Chiang
- Biodiversity Research Center, Academia Sinica, Taipei, 115201, Taiwan
| | - Lay-Sun Ma
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115201, Taiwan.
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Cui G, Bi X, Lu S, Jiang Z, Deng Y. A Genetically Engineered Escherichia coli for Potential Utilization in Fungal Smut Disease Control. Microorganisms 2023; 11:1564. [PMID: 37375066 DOI: 10.3390/microorganisms11061564] [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: 05/15/2023] [Revised: 06/03/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Sporisorium scitamineum, the basidiomycetous fungus that causes sugarcane smut and leads to severe losses in sugarcane quantity and quality, undergoes sexual mating to form dikaryotic hyphae capable of invading the host cane. Therefore, suppressing dikaryotic hyphae formation would potentially be an effective way to prevent host infection by the smut fungus, and the following disease symptom developments. The phytohormone methyl jasmonate (MeJA) has been shown to induce plant defenses against insects and microbial pathogens. In this study, we will verify that the exogenous addition of MeJA-suppressed dikaryotic hyphae formation in S. scitamineum and Ustilago maydis under in vitro culture conditions, and the maize smut symptom caused by U. maydis, could be effectively suppressed by MeJA in a pot experiment. We constructed an Escherichia coli-expressing plant JMT gene, encoding a jasmonic acid carboxyl methyl transferase that catalyzes conversion from jasmonic acid (JA) to MeJA. By GC-MS, we will confirm that the transformed E. coli, designated as the pJMT strain, was able to produce MeJA in the presence of JA and S-adenosyl-L-methionine (SAM as methyl donor). Furthermore, the pJMT strain was able to suppress S. scitamineum filamentous growth under in vitro culture conditions. It waits to further optimize JMT expression under field conditions in order to utilize the pJMT strain as a biocontrol agent (BCA) of sugarcane smut disease. Overall, our study provides a potentially novel method for controlling crop fungal diseases by boosting phytohormone biosynthesis.
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Affiliation(s)
- Guobing Cui
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
- Henry Fork School of Biology and Agriculture, Shaoguan University, Shaoguan 512000, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China
| | - Xinping Bi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China
| | - Shan Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Ago-Bioresouces Ministry and Province Co-Sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Nanning 530004, China
| | - Zide Jiang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China
| | - Yizhen Deng
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China
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Steins L, Guerreiro MA, Duhamel M, Liu F, Wang QM, Boekhout T, Begerow D. Comparative genomics of smut fungi suggest the ability of meiosis and mating in asexual species of the genus Pseudozyma (Ustilaginales). BMC Genomics 2023; 24:321. [PMID: 37312063 DOI: 10.1186/s12864-023-09387-1] [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: 06/24/2022] [Accepted: 05/18/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND The Ustilaginales comprise hundreds of plant-parasitic fungi with a characteristic life cycle that directly links sexual reproduction and parasitism: One of the two mating-type loci codes for a transcription factor that not only facilitates mating, but also initiates the infection process. However, several species within the Ustilaginales have no described parasitic stage and were historically assigned to the genus Pseudozyma. Molecular studies have shown that the group is polyphyletic, with members being scattered in various lineages of the Ustilaginales. Together with recent findings of conserved fungal effectors in these non-parasitic species, this raises the question if parasitism has been lost recently and in multiple independent events or if there are hitherto undescribed parasitic stages of these fungi. RESULTS In this study, we sequenced genomes of five Pseudozyma species together with six parasitic species from the Ustilaginales to compare their genomic capability to perform two central functions in sexual reproduction: mating and meiosis. While the loss of sexual capability is assumed in certain lineages and asexual species are common in Asco- and Basidiomycota, we were able to successfully annotate potentially functional mating and meiosis genes that are conserved throughout the whole group. CONCLUSION Our data suggest that at least the key functions of a sexual lifestyle are maintained in the analyzed genomes, challenging the current understanding of the so-called asexual species with respect to their evolution and ecological role.
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Affiliation(s)
- Lena Steins
- Evolution of Plants and Fungi, Ruhr-University Bochum, Bochum, Germany
| | - Marco Alexandre Guerreiro
- Evolution of Plants and Fungi, Ruhr-University Bochum, Bochum, Germany
- Environmental Genomics, Germany and Max Planck Institute for Evolutionary Biology, Botanical Institute, Christian-Albrechts University of Kiel, Plön, Germany
| | - Marine Duhamel
- Evolution of Plants and Fungi, Ruhr-University Bochum, Bochum, Germany
- Ecologie Systématique Evolution, IDEEV, CNRS, Université Paris-Saclay, AgroParisTech, Gif-Sur-Yvette, Paris, France
| | - Fei Liu
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, 071002, Hebei, China
| | - Qi-Ming Wang
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, 071002, Hebei, China
| | - Teun Boekhout
- College of Science, King Saud University, Riyadh, Saudi Arabia
- Westerdijk Fungal Biodiversity Institute, Utrecht, the Netherlands
| | - Dominik Begerow
- Evolution of Plants and Fungi, Ruhr-University Bochum, Bochum, Germany.
- Organismic Botany and Mycology, University of Hamburg, IPM, Hamburg, Germany.
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5
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Ran M, Zhao G, Jiao L, Gu Z, Yang K, Wang L, Cao X, Xu L, Yan J, Yan Y, Xie S, Yang M. Copper Ion Mediates Yeast-to-Hypha Transition in Yarrowia lipolytica. J Fungi (Basel) 2023; 9:jof9020249. [PMID: 36836363 PMCID: PMC9966917 DOI: 10.3390/jof9020249] [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: 12/26/2022] [Revised: 02/10/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Copper is an essential element that maintains yeast physiological function at low concentrations, but is toxic in excess. This study reported that Cu(II) significantly promoted the yeast-to-hypha transition of Yarrowia lipolytica in dose-dependent manner. Strikingly, the intracellular Cu(II) accumulation was drastically reduced upon hyphae formation. Moreover, we investigated the effect of Cu(II) on the physiological function of Y. lipolytica during the dimorphic transition and found that cellular viability and thermomyces lanuginosus lipase (TLL) were both influenced by the Cu(II)-induced yeast-to-hypha transition. Overall, hyphal cells survived better than yeast-form cells with copper ions. Furthermore, transcriptional analysis of the Cu(II)-induced Y. lipolytica before and after hyphae formation revealed a transition state between them. The results showed multiple differentially expressed genes (DEGs) were turned over between the yeast-to-transition and the transition-to-hyphae processes. Furthermore, gene set enrichment analysis (GSEA) identified that multiple KEGG pathways, including signaling, ion transport, carbon and lipid metabolism, ribosomal, and other biological processes, were highly involved in the dimorphic transition. Importantly, overexpression screening of more than thirty DEGs further found four novel genes, which are encoded by YALI1_B07500g, YALI1_C12900g, YALI1_E04033g, and YALI1_F29317g, were essential regulators in Cu-induced dimorphic transition. Overexpression of each of them will turn on the yeast-to-hypha transition without Cu(II) induction. Taken together, these results provide new insight to explore further the regulatory mechanism of dimorphic transition in Y. lipolytica.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Min Yang
- Correspondence: ; Tel./Fax: +86-27-87792213
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Jiang Q, Mao R, Li Y, Bi Y, Liu Y, Zhang M, Li R, Yang Y, Dov B P.
AaCaM
is required for infection structure differentiation and secondary metabolites in pear fungal pathogen
Alternaria alternata. J Appl Microbiol 2022; 133:2631-2641. [DOI: 10.1111/jam.15732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 06/12/2022] [Accepted: 07/20/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Qianqian Jiang
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
| | - Renyan Mao
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
| | - Yongcai Li
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
| | - Yang Bi
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
| | - Yongxiang Liu
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
| | - Miao Zhang
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
| | - Rong Li
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
| | - Yangyang Yang
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
| | - Prusky Dov B
- College of Food Science and Engineering Gansu Agricultural University Lanzhou China
- Institute of Postharvest and Food Sciences The Volcani Center, Agricultural Research Organization Rishon LeZion Israel
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7
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Smuts to the Power of Three: Biotechnology, Biotrophy, and Basic Biology. J Fungi (Basel) 2021; 7:jof7080660. [PMID: 34436199 PMCID: PMC8401932 DOI: 10.3390/jof7080660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 08/10/2021] [Indexed: 11/26/2022] Open
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Boekhout T, Aime MC, Begerow D, Gabaldón T, Heitman J, Kemler M, Khayhan K, Lachance MA, Louis EJ, Sun S, Vu D, Yurkov A. The evolving species concepts used for yeasts: from phenotypes and genomes to speciation networks. FUNGAL DIVERS 2021; 109:27-55. [PMID: 34720775 PMCID: PMC8550739 DOI: 10.1007/s13225-021-00475-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 05/31/2021] [Indexed: 12/12/2022]
Abstract
Here we review how evolving species concepts have been applied to understand yeast diversity. Initially, a phenotypic species concept was utilized taking into consideration morphological aspects of colonies and cells, and growth profiles. Later the biological species concept was added, which applied data from mating experiments. Biophysical measurements of DNA similarity between isolates were an early measure that became more broadly applied with the advent of sequencing technology, leading to a sequence-based species concept using comparisons of parts of the ribosomal DNA. At present phylogenetic species concepts that employ sequence data of rDNA and other genes are universally applied in fungal taxonomy, including yeasts, because various studies revealed a relatively good correlation between the biological species concept and sequence divergence. The application of genome information is becoming increasingly common, and we strongly recommend the use of complete, rather than draft genomes to improve our understanding of species and their genome and genetic dynamics. Complete genomes allow in-depth comparisons on the evolvability of genomes and, consequently, of the species to which they belong. Hybridization seems a relatively common phenomenon and has been observed in all major fungal lineages that contain yeasts. Note that hybrids may greatly differ in their post-hybridization development. Future in-depth studies, initially using some model species or complexes may shift the traditional species concept as isolated clusters of genetically compatible isolates to a cohesive speciation network in which such clusters are interconnected by genetic processes, such as hybridization.
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Affiliation(s)
- Teun Boekhout
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
- Institute of Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, The Netherlands
| | - M. Catherine Aime
- Dept Botany and Plant Pathology, College of Agriculture, Purdue University, West Lafayette, IN 47907 USA
| | - Dominik Begerow
- Evolution of Plants and Fungi, Ruhr-University Bochum, 44801 Bochum, Germany
| | - Toni Gabaldón
- Barcelona Supercomputing Centre (BSC–CNS), Jordi Girona, 29, 08034 Barcelona, Spain
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac, 10, 08028 Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Joseph Heitman
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710 USA
| | - Martin Kemler
- Evolution of Plants and Fungi, Ruhr-University Bochum, 44801 Bochum, Germany
| | - Kantarawee Khayhan
- Department of Microbiology and Parasitology, Faculty of Medical Sciences, University of Phayao, Phayao, 56000 Thailand
| | - Marc-André Lachance
- Department of Biology, University of Western Ontario, London, ON N6A 5B7 Canada
| | - Edward J. Louis
- Department of Genetics and Genome Biology, Genetic Architecture of Complex Traits, University of Leicester, Leicester, LE1 7RH UK
| | - Sheng Sun
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27710 USA
| | - Duong Vu
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - Andrey Yurkov
- German Collection of Microorganisms and Cell Cultures, Leibniz Institute DSMZ, Brunswick, Germany
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Kijpornyongpan T, Aime MC. Comparative transcriptomics reveal different mechanisms for hyphal growth across four plant-associated dimorphic fungi. Fungal Genet Biol 2021; 152:103565. [PMID: 33991665 DOI: 10.1016/j.fgb.2021.103565] [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: 09/24/2020] [Revised: 03/07/2021] [Accepted: 05/03/2021] [Indexed: 11/27/2022]
Abstract
Fungal dimorphism is a phenomenon by which a fungus can grow both as a yeast form and a hyphal form. It is frequently related to pathogenicity as different growth forms are more suitable for different functions during a life cycle. Among dimorphic plant pathogens, the corn smut fungus Ustilago maydis serves as a model organism to understand fungal dimorphism and its effect on pathogenicity. However, there is a lack of data on whether mechanisms elucidated from model species are broadly applicable to other fungi. In this study, two non-model plant-associated species in the smut fungus subphylum (Ustilaginomycotina), Tilletiopsis washingtonensis and Meira miltonrushii, were selected to compare dimorphic mechanisms in these to those in U. maydis. We sequenced transcriptomic profiles during both yeast and hyphal growth in these two species using Tween40, a lipid mimic, as a trigger for hyphal growth. We then compared our data with previously published data from U. maydis and a fourth but unrelated dimorphic phytopathogen, Ophiostoma novo-ulmi. Comparative transcriptomics was performed to identify common genes upregulated during hyphal growth in all four dimorphic species. Intriguingly, T. washingtonensis shares the least similarities of transcriptomic alteration (hyphal growth versus yeast growth) with the others, although it is closely related to M. miltonrushii and U. maydis. This suggests that phylogenetic relatedness is not correlated with transcriptomic similarity under the same biological phenomenon. Among commonly expressed genes in the four species, genes in cell energy production and conversion, amino acid transport and metabolism and cytoskeleton are significantly enriched. Considering dimorphism genes characterized in U. maydis, as well as hyphal tip-associated genes from the literature, we found only genes encoding the cell end marker Tea4/TeaC and the kinesin motor protein Kin3 concordantly expressed in all four species. This suggests a divergence in species-specific mechanisms for dimorphic transition and hyphal growth.
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Affiliation(s)
- Teeratas Kijpornyongpan
- Department of Botany and Plant Pathology, Purdue University, 915 W State St, West Lafayette, IN 47907-2054, USA
| | - M Catherine Aime
- Department of Botany and Plant Pathology, Purdue University, 915 W State St, West Lafayette, IN 47907-2054, USA.
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10
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van der Linde K, Göhre V. How Do Smut Fungi Use Plant Signals to Spatiotemporally Orientate on and In Planta? J Fungi (Basel) 2021; 7:107. [PMID: 33540708 PMCID: PMC7913117 DOI: 10.3390/jof7020107] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/19/2021] [Accepted: 01/23/2021] [Indexed: 11/16/2022] Open
Abstract
Smut fungi represent a large group of biotrophic plant pathogens that cause extensive yield loss and are also model organisms for studying plant-pathogen interactions. In recent years, they have become biotechnological tools. After initial penetration of the plant epidermis, smut fungi grow intra-and intercellularly without disrupting the plant-plasma membrane. Following the colonialization step, teliospores are formed and later released. While some smuts only invade the tissues around the initial penetration site, others colonize in multiple plant organs resulting in spore formation distal from the original infection site. The intimate contact zone between fungal hyphae and the host is termed the biotrophic interaction zone and enables exchange of signals and nutrient uptake. Obviously, all steps of on and in planta growth require fine sensing of host conditions as well as reprogramming of the host by the smut fungus. In this review, we highlight selected examples of smut fungal colonization styles, directional growth in planta, induction of spore formation, and the signals required, pointing to excellent reviews for details, to draw attention to some of the open questions in this important research field.
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Affiliation(s)
- Karina van der Linde
- Department of Cell Biology and Plant Biochemistry, University of Regensburg, 93053 Regensburg, Germany
| | - Vera Göhre
- Institute for Microbiology, Cluster of Excellence on Plant Sciences, Heinrich-Heine University, 40225 Düsseldorf, Germany
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