Verticillium longisporum and V. dahliae: infection and disease in Brassica napus

Zhou, Lecong; Hu, Qiong; Johansson, Anna; Dixelius, Christina

doi:10.1111/j.1365-3059.2005.01311.x

Cited by 75 publications

(88 citation statements)

References 35 publications

(41 reference statements)

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“…invasion in oilseed rape (Zhou et al, 2006). This is in agreement with the common observation that the prevalence of cotton Verticillium spp.…”

Section: Discussionsupporting

confidence: 81%

“…Statistical analyses were performed using Student's t test: *P , 0.05 and **P , 0.01. [See online article for color version of this figure. ] potato (Solanum tuberosum; Zhou et al, 2006;Klosterman et al, 2009). Typical symptoms caused by V. dahliae include leaf necrosis, premature defoliation, altered flowering time, and severe growth stunting (Veronese et al, 2003;Fradin et al, 2009;Xu et al, 2011b).…”

Section: Discussionmentioning

confidence: 99%

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Cotton WRKY1 Mediates the Plant Defense-to-Development Transition during Infection of Cotton byVerticillium dahliaeby ActivatingJASMONATE ZIM-DOMAIN1Expression

Luo

et al. 2014

Plant Physiology

133

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Plants have evolved an elaborate signaling network to ensure an appropriate level of immune response to meet the differing demands of developmental processes. Previous research has demonstrated that DELLA proteins physically interact with JASMONATE ZIM-DOMAIN1 (JAZ1) and dynamically regulate the interaction of the gibberellin (GA) and jasmonate (JA) signaling pathways. However, whether and how the JAZ1-DELLA regulatory node is regulated at the transcriptional level in plants under normal growth conditions or during pathogen infection is not known. Here, we demonstrate multiple functions of cotton (Gossypium barbadense) GbWRKY1 in the plant defense response and during development. Although GbWRKY1 expression is induced rapidly by methyl jasmonate and infection by Verticillium dahliae, our results show that GbWRKY1 is a negative regulator of the JA-mediated defense response and plant resistance to the pathogens Botrytis cinerea and V. dahliae. Under normal growth conditions, GbWRKY1-overexpressing lines displayed GA-associated phenotypes, including organ elongation and early flowering, coupled with the down-regulation of the putative targets of DELLA. We show that the GA-related phenotypes of GbWRKY1-overexpressing plants depend on the constitutive expression of Gossypium hirsutum GhJAZ1. We also show that GhJAZ1 can be transactivated by GbWRKY1 through TGAC core sequences, and the adjacent sequences of this binding site are essential for binding specificity and affinity to GbWRKY1, as revealed by dual-luciferase reporter assays and electrophoretic mobility shift assays. In summary, our data suggest that GbWRKY1 is a critical regulator mediating the plant defense-to-development transition during V. dahliae infection by activating JAZ1 expression.

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“…invasion in oilseed rape (Zhou et al, 2006). This is in agreement with the common observation that the prevalence of cotton Verticillium spp.…”

Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Cotton WRKY1 Mediates the Plant Defense-to-Development Transition during Infection of Cotton byVerticillium dahliaeby ActivatingJASMONATE ZIM-DOMAIN1Expression

Luo

et al. 2014

Plant Physiology

133

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“…longisporum. Similar strains causing Verticillium wilt have since been isolated from cauliflower, oilseed rape, horseradish, and other crops in North America and Europe (17,18,29,49,73,76,147,172). These longspored strains produced conidia 7-9 μm in length, nearly twice the size of typical V. dahliae conidia (76).…”

Section: Contemporary Taxonomic Controversymentioning

confidence: 99%

Diversity, Pathogenicity, and Management of Verticillium Species

Klosterman

Atallah

Vallad

et al. 2009

Annu. Rev. Phytopathol.

631

564

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The genus Verticillium encompasses phytopathogenic species that cause vascular wilts of plants. In this review, we focus on Verticillium dahliae, placing emphasis on the controversy surrounding the elevation of a long-spored variant as a new species, recent advances in the analysis of compatible and incompatible interactions, highlighted by the use of strains expressing fluorescent proteins, and the genetic diversity among Verticillium spp. A synthesis of the approaches to explore genetic diversity, gene flow, and the potential for cryptic recombination is provided. Control of Verticillium wilt has relied on a panoply of chemical and nonchemical strategies, but is beset with environmental or site-specific efficacy problems. Host resistance remains the most logical choice, but is unavailable in most crops. The genetic basis of resistance to Verticillium wilt is unknown in most crops, as are the subcellular signaling mechanisms associated with Ve-mediated, race-specific resistance. Increased understanding in each of these areas promises to facilitate management of Verticillium wilts across a broad range of crops.

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“…As explained by Zhou et al (2006), the infection process of V. dahliae can be divided into two phases. Phase I begins with the germination of microsclerotia in response to plant root exudates (Mol and Scholte, 1995).…”

Section: Causal Agents Of Verticillium Wilt In Peppermentioning

confidence: 99%

Arbuscular mycorrhizal fungi (AMF) as bioprotector agents against wilt induced by Verticillium spp. in pepper: a review

Goicoechea¹,

Garmendia²,

Sánchez‐Díaz³

et al. 2013

Span. j. agric. res.

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Verticillium dahliae Kleb. is a vascular pathogen that alters water status and growth of pepper plants and causes drastic reductions in yield. Its control is difficult because it can survive in field soil for several years. The application of arbuscular mycorrhizal fungi (AMF) as bioprotector agents against V. dahliae is an alternative to the use of chemicals which, in addition, is more respectful with the environment. The establishment of the mutualistic association of plant roots and AMF involves a continuous cellular and molecular dialogue between both symbionts that includes the preactivation of plant defense responses that may enhance the resistance or tolerance of mycorrhizal plants to soil-borne pathogens. Some AMF can improve the resistance of Capsicum annuum L. against V. dahliae. This is especially relevant for pepper cultivars (i.e. cv. Piquillo) that exhibit high susceptibility to this pathogen. Compared with non-mycorrhizal plants, mycorrhizal pepper can exhibit more balanced antioxidant metabolism in leaves along the first month after pathogen inoculation, which may contribute to delay both the development of disease symptoms and the decrease of photosynthesis in Verticillium-inoculated plants with the subsequent benefit for yield. In stems, mycorrhizal pepper show earlier and higher deposition of lignin in xylem vessels than nonmycorrhizal plants, even in absence of the pathogen. Moreover, AMF can induce new isoforms of acidic chitinases and superoxide dismutase in roots. Mycorrhizal-specif ic induction of these enzymatic activities together with enhanced peroxidase and phenylalanine ammonia-lyase in roots may also be involved in the bioprotection of Verticillium-induced wilt in pepper by AMF.Additional key words: biological control, Capsicum annuum, mycorrhizal symbiosis, Verticillium dahliae Kleb. ResumenRevisión. Los hongos micorrícico arbusculares (MA) como agentes bioprotectores del pimiento frente a la seca inducida por Verticillium spp.Verticillium dahliae Kleb. altera el estado hídrico y el crecimiento de las plantas de pimiento y reduce la producción del fruto. El empleo de hongos micorrícico arbusculares (MA) como bioprotectores contra V. dahliae es una alternativa al uso de productos químicos más respetuosa para el medio ambiente. La asociación entre las raí-ces de las plantas y los hongos MA conlleva un diálogo celular y molecular entre ambos simbiontes, que incluye la preactivación de respuestas de defensa en la planta, lo cual puede incrementar la resistencia o tolerancia de las plantas micorrizadas hacia los patógenos edáficos. Algunos hongos MA incrementan la resistencia del pimiento (Capsicum annuum L.) contra V. dahliae. Esto es especialmente relevante cuando el cultivar (cv. Piquillo, por ejemplo) es muy susceptible hacia el patógeno. En comparación con las plantas no micorrizadas, las hojas de las plantas de pimiento micorrizadas muestran un metabolismo antioxidante más equilibrado a lo largo del primer mes tras la inoculación del patógeno, lo que puede retrasar el desc...

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Verticillium longisporum and V. dahliae: infection and disease in Brassica napus

Cited by 75 publications

References 35 publications

Cotton WRKY1 Mediates the Plant Defense-to-Development Transition during Infection of Cotton byVerticillium dahliaeby ActivatingJASMONATE ZIM-DOMAIN1Expression

Cotton WRKY1 Mediates the Plant Defense-to-Development Transition during Infection of Cotton byVerticillium dahliaeby ActivatingJASMONATE ZIM-DOMAIN1Expression

Diversity, Pathogenicity, and Management of Verticillium Species

Arbuscular mycorrhizal fungi (AMF) as bioprotector agents against wilt induced by Verticillium spp. in pepper: a review

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