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Functional analysis of cutinase transcription factors in Fusarium verticillioides
Fusarium verticillioides is an important pathogen of maize and causes serious yield losses and food safety issues worldwide. F. verticillioides produces highly toxic mycotoxin Fumonisin B1 (FB1) in infested commodities which makes these food and feeds unsafe for humans and animals. For pathogenic fu...
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Published in: | Phytopathology research 2024-09, Vol.6 (1), p.1-18, Article 48 |
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description | Fusarium verticillioides is an important pathogen of maize and causes serious yield losses and food safety issues worldwide. F. verticillioides produces highly toxic mycotoxin Fumonisin B1 (FB1) in infested commodities which makes these food and feeds unsafe for humans and animals. For pathogenic fungi to successfully penetrate its plant hosts, the pathogen secretes hydrolytic enzymes that can facilitate penetration into the plant cutin layer. However, there is limited information on how cutinases transcriptionally regulated to impact F. verticillioides pathogenicity. In this study, our aim is to functionally characterize cutinase transcription factors that regulate key cutinase activities that are directly associated with F. verticillioides pathogenicity and FB1 biosynthesis. Gene deletion of cutinase transcription factor FvCTF1α did not affect the growth and morphology of the fungal mycelia on CMII medium, whereas the conidiation, utilization of sodium acetate and sodium oleate, stress tolerance against cell wall interfering agent , and the cutinase and pectinase activities in the Δ Fvctf1α mutant were negatively impacted. FvCtf1α regulates the expression of induced cutinase genes FvCUT1 and FvCUT4 by binding to their GC-rich promoters. In addition, FvCtf1α, containing a novel function in regulating FB1, interacts with the promoter of FvFUM1 and FvFUM6 to down-regulate the expression of FvFUM1 and FvFUM6 , resulting in decreased production of FB1 in the Δ Fvctf1α strain. Δ Fvctf1α exhibited decreased pathogenicity in maize due to the down-regulation of pathogenicity-related genes as well as key downstream cutinase genes FvCUT3 and FvCUT4 in F. verticillioides . We also demonstrated that FvCtf1α regulated FvCUT3 and FvCUT4 differently; FvCUT4 via direct regulation while FvCUT3 via indirect regulation by interacting with FvFarB, a homologous protein of FvCtf1α. Moreover, RNA-seq analysis showed that FvCtf1α was associated with many pathways, such as fatty acid metabolism, carbon source utilization, cell wall integrity, oxidative stress, and fumonisin synthesis in F. verticillioides . Our study demonstrated that FvCtf1α was not only involved in the regulation of cutinases but also a broad spectrum of pathways that ultimately affect F. verticillioides virulence and mycotoxin biosynthesis. |
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F. verticillioides produces highly toxic mycotoxin Fumonisin B1 (FB1) in infested commodities which makes these food and feeds unsafe for humans and animals. For pathogenic fungi to successfully penetrate its plant hosts, the pathogen secretes hydrolytic enzymes that can facilitate penetration into the plant cutin layer. However, there is limited information on how cutinases transcriptionally regulated to impact F. verticillioides pathogenicity. In this study, our aim is to functionally characterize cutinase transcription factors that regulate key cutinase activities that are directly associated with F. verticillioides pathogenicity and FB1 biosynthesis. Gene deletion of cutinase transcription factor FvCTF1α did not affect the growth and morphology of the fungal mycelia on CMII medium, whereas the conidiation, utilization of sodium acetate and sodium oleate, stress tolerance against cell wall interfering agent , and the cutinase and pectinase activities in the Δ Fvctf1α mutant were negatively impacted. FvCtf1α regulates the expression of induced cutinase genes FvCUT1 and FvCUT4 by binding to their GC-rich promoters. In addition, FvCtf1α, containing a novel function in regulating FB1, interacts with the promoter of FvFUM1 and FvFUM6 to down-regulate the expression of FvFUM1 and FvFUM6 , resulting in decreased production of FB1 in the Δ Fvctf1α strain. Δ Fvctf1α exhibited decreased pathogenicity in maize due to the down-regulation of pathogenicity-related genes as well as key downstream cutinase genes FvCUT3 and FvCUT4 in F. verticillioides . We also demonstrated that FvCtf1α regulated FvCUT3 and FvCUT4 differently; FvCUT4 via direct regulation while FvCUT3 via indirect regulation by interacting with FvFarB, a homologous protein of FvCtf1α. Moreover, RNA-seq analysis showed that FvCtf1α was associated with many pathways, such as fatty acid metabolism, carbon source utilization, cell wall integrity, oxidative stress, and fumonisin synthesis in F. verticillioides . Our study demonstrated that FvCtf1α was not only involved in the regulation of cutinases but also a broad spectrum of pathways that ultimately affect F. verticillioides virulence and mycotoxin biosynthesis.</description><identifier>ISSN: 2524-4167</identifier><identifier>EISSN: 2524-4167</identifier><identifier>DOI: 10.1186/s42483-024-00267-4</identifier><language>eng</language><publisher>BMC</publisher><subject>Cutinase ; F. verticillioides ; Fumonisins ; FvCtf1α ; Pathogenicity</subject><ispartof>Phytopathology research, 2024-09, Vol.6 (1), p.1-18, Article 48</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c238t-571b7a33a55a700b57fca6c0bf7d5ba931fe9ede61fdc105e9082efdad9541f63</cites><orcidid>0000-0002-3170-1403</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Peng, Minghui</creatorcontrib><creatorcontrib>Wang, Jiajia</creatorcontrib><creatorcontrib>Lu, Xiange</creatorcontrib><creatorcontrib>Wang, Meiduo</creatorcontrib><creatorcontrib>Wen, Gaolong</creatorcontrib><creatorcontrib>Wu, Congxian</creatorcontrib><creatorcontrib>Lu, Guodong</creatorcontrib><creatorcontrib>Wang, Zonghua</creatorcontrib><creatorcontrib>Shim, Won Bo</creatorcontrib><creatorcontrib>Yu, Wenying</creatorcontrib><title>Functional analysis of cutinase transcription factors in Fusarium verticillioides</title><title>Phytopathology research</title><description>Fusarium verticillioides is an important pathogen of maize and causes serious yield losses and food safety issues worldwide. F. verticillioides produces highly toxic mycotoxin Fumonisin B1 (FB1) in infested commodities which makes these food and feeds unsafe for humans and animals. For pathogenic fungi to successfully penetrate its plant hosts, the pathogen secretes hydrolytic enzymes that can facilitate penetration into the plant cutin layer. However, there is limited information on how cutinases transcriptionally regulated to impact F. verticillioides pathogenicity. In this study, our aim is to functionally characterize cutinase transcription factors that regulate key cutinase activities that are directly associated with F. verticillioides pathogenicity and FB1 biosynthesis. Gene deletion of cutinase transcription factor FvCTF1α did not affect the growth and morphology of the fungal mycelia on CMII medium, whereas the conidiation, utilization of sodium acetate and sodium oleate, stress tolerance against cell wall interfering agent , and the cutinase and pectinase activities in the Δ Fvctf1α mutant were negatively impacted. FvCtf1α regulates the expression of induced cutinase genes FvCUT1 and FvCUT4 by binding to their GC-rich promoters. In addition, FvCtf1α, containing a novel function in regulating FB1, interacts with the promoter of FvFUM1 and FvFUM6 to down-regulate the expression of FvFUM1 and FvFUM6 , resulting in decreased production of FB1 in the Δ Fvctf1α strain. Δ Fvctf1α exhibited decreased pathogenicity in maize due to the down-regulation of pathogenicity-related genes as well as key downstream cutinase genes FvCUT3 and FvCUT4 in F. verticillioides . We also demonstrated that FvCtf1α regulated FvCUT3 and FvCUT4 differently; FvCUT4 via direct regulation while FvCUT3 via indirect regulation by interacting with FvFarB, a homologous protein of FvCtf1α. Moreover, RNA-seq analysis showed that FvCtf1α was associated with many pathways, such as fatty acid metabolism, carbon source utilization, cell wall integrity, oxidative stress, and fumonisin synthesis in F. verticillioides . Our study demonstrated that FvCtf1α was not only involved in the regulation of cutinases but also a broad spectrum of pathways that ultimately affect F. verticillioides virulence and mycotoxin biosynthesis.</description><subject>Cutinase</subject><subject>F. verticillioides</subject><subject>Fumonisins</subject><subject>FvCtf1α</subject><subject>Pathogenicity</subject><issn>2524-4167</issn><issn>2524-4167</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>DOA</sourceid><recordid>eNpNkMtKAzEUhoMoWGpfwFVeYDT3zCylOFooiKDrcCYXSZlOSjIj9O2dtiJuzo2fj8OH0D0lD5TW6rEIJmpeESYqQpjSlbhCCybnVVClr__Nt2hVyo7MKUm50nqB3ttpsGNMA_QY5nIsseAUsJ3GOEDxeMwwFJvj4RTCAeyYcsFxwO1UIMdpj799HqONfR9TdL7coZsAffGr375En-3zx_q12r69bNZP28oyXo-V1LTTwDlICZqQTupgQVnSBe1kBw2nwTfeeUWDs5RI35Ca-eDANVLQoPgSbS5cl2BnDjnuIR9NgmjOh5S_DJwe670B5WreuUBV0wjb1B11oZt9BMdqxXWYWezCsjmVkn3441FiTo7NxbGZHZuzYyP4Dz-_cZQ</recordid><startdate>20240913</startdate><enddate>20240913</enddate><creator>Peng, Minghui</creator><creator>Wang, Jiajia</creator><creator>Lu, Xiange</creator><creator>Wang, Meiduo</creator><creator>Wen, Gaolong</creator><creator>Wu, Congxian</creator><creator>Lu, Guodong</creator><creator>Wang, Zonghua</creator><creator>Shim, Won Bo</creator><creator>Yu, Wenying</creator><general>BMC</general><scope>AAYXX</scope><scope>CITATION</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-3170-1403</orcidid></search><sort><creationdate>20240913</creationdate><title>Functional analysis of cutinase transcription factors in Fusarium verticillioides</title><author>Peng, Minghui ; Wang, Jiajia ; Lu, Xiange ; Wang, Meiduo ; Wen, Gaolong ; Wu, Congxian ; Lu, Guodong ; Wang, Zonghua ; Shim, Won Bo ; Yu, Wenying</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c238t-571b7a33a55a700b57fca6c0bf7d5ba931fe9ede61fdc105e9082efdad9541f63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Cutinase</topic><topic>F. verticillioides</topic><topic>Fumonisins</topic><topic>FvCtf1α</topic><topic>Pathogenicity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Peng, Minghui</creatorcontrib><creatorcontrib>Wang, Jiajia</creatorcontrib><creatorcontrib>Lu, Xiange</creatorcontrib><creatorcontrib>Wang, Meiduo</creatorcontrib><creatorcontrib>Wen, Gaolong</creatorcontrib><creatorcontrib>Wu, Congxian</creatorcontrib><creatorcontrib>Lu, Guodong</creatorcontrib><creatorcontrib>Wang, Zonghua</creatorcontrib><creatorcontrib>Shim, Won Bo</creatorcontrib><creatorcontrib>Yu, Wenying</creatorcontrib><collection>CrossRef</collection><collection>Directory of Open Access Journals</collection><jtitle>Phytopathology research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Peng, Minghui</au><au>Wang, Jiajia</au><au>Lu, Xiange</au><au>Wang, Meiduo</au><au>Wen, Gaolong</au><au>Wu, Congxian</au><au>Lu, Guodong</au><au>Wang, Zonghua</au><au>Shim, Won Bo</au><au>Yu, Wenying</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Functional analysis of cutinase transcription factors in Fusarium verticillioides</atitle><jtitle>Phytopathology research</jtitle><date>2024-09-13</date><risdate>2024</risdate><volume>6</volume><issue>1</issue><spage>1</spage><epage>18</epage><pages>1-18</pages><artnum>48</artnum><issn>2524-4167</issn><eissn>2524-4167</eissn><abstract>Fusarium verticillioides is an important pathogen of maize and causes serious yield losses and food safety issues worldwide. F. verticillioides produces highly toxic mycotoxin Fumonisin B1 (FB1) in infested commodities which makes these food and feeds unsafe for humans and animals. For pathogenic fungi to successfully penetrate its plant hosts, the pathogen secretes hydrolytic enzymes that can facilitate penetration into the plant cutin layer. However, there is limited information on how cutinases transcriptionally regulated to impact F. verticillioides pathogenicity. In this study, our aim is to functionally characterize cutinase transcription factors that regulate key cutinase activities that are directly associated with F. verticillioides pathogenicity and FB1 biosynthesis. Gene deletion of cutinase transcription factor FvCTF1α did not affect the growth and morphology of the fungal mycelia on CMII medium, whereas the conidiation, utilization of sodium acetate and sodium oleate, stress tolerance against cell wall interfering agent , and the cutinase and pectinase activities in the Δ Fvctf1α mutant were negatively impacted. FvCtf1α regulates the expression of induced cutinase genes FvCUT1 and FvCUT4 by binding to their GC-rich promoters. In addition, FvCtf1α, containing a novel function in regulating FB1, interacts with the promoter of FvFUM1 and FvFUM6 to down-regulate the expression of FvFUM1 and FvFUM6 , resulting in decreased production of FB1 in the Δ Fvctf1α strain. Δ Fvctf1α exhibited decreased pathogenicity in maize due to the down-regulation of pathogenicity-related genes as well as key downstream cutinase genes FvCUT3 and FvCUT4 in F. verticillioides . We also demonstrated that FvCtf1α regulated FvCUT3 and FvCUT4 differently; FvCUT4 via direct regulation while FvCUT3 via indirect regulation by interacting with FvFarB, a homologous protein of FvCtf1α. Moreover, RNA-seq analysis showed that FvCtf1α was associated with many pathways, such as fatty acid metabolism, carbon source utilization, cell wall integrity, oxidative stress, and fumonisin synthesis in F. verticillioides . Our study demonstrated that FvCtf1α was not only involved in the regulation of cutinases but also a broad spectrum of pathways that ultimately affect F. verticillioides virulence and mycotoxin biosynthesis.</abstract><pub>BMC</pub><doi>10.1186/s42483-024-00267-4</doi><tpages>18</tpages><orcidid>https://orcid.org/0000-0002-3170-1403</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Cutinase F. verticillioides Fumonisins FvCtf1α Pathogenicity |
title | Functional analysis of cutinase transcription factors in Fusarium verticillioides |
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