<i>Neofusicoccum parvum,</i> agent of leaf spot on the new host <i>Ginkgo biloba</i> in Iran

Mirhosseini, Hossein Ali; Babaeizad, Valiollah; Rahimlou, Saleh

doi:10.5197/j.2044-0588.2014.030.012

Cited by 5 publications

(2 citation statements)

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“…[7], pomegranate (Punica granatum) [8], peach (Prunus persica) [9], and walnut (Juglans regia) [10]. Its forestry host plants include the coast redwood (Sequoia sempervirens) [11], Norfolk Island pine (Araucaria heterophylla) [12], Eucalyptus globulus [13,14], and Ginkgo biloba [15]. Most of the relevant studies published to date have focused on isolation of the fungus from symptomatic or asymptomatic tissue, followed by molecular identification and pathogenicity testing using Koch's postulates.…”

Section: Introductionmentioning

confidence: 99%

Insights of the Neofusicoccum parvum–Liquidambar styraciflua Interaction and Identification of New Cysteine-Rich Proteins in Both Species

Vázquez-Avendaño

Rodríguez-Haas

Velázquez-Delgado

et al. 2021

JoF

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Neofusicoccum parvum belongs to the Botryosphaeriaceae family, which contains endophytes and pathogens of woody plants. In this study, we isolated 11 strains from diseased tissue of Liquidambar styraciflua. Testing with Koch’s postulates—followed by a molecular approach—revealed that N. parvum was the most pathogenic strain. We established an in vitro pathosystem (L. styraciflua foliar tissue–N. parvum) in order to characterize the infection process during the first 16 days. New CysRPs were identified for both organisms using public transcriptomic and genomic databases, while mRNA expression of CysRPs was analyzed by RT-qPCR. The results showed that N. parvum caused disease symptoms after 24 h that intensified over time. Through in silico analysis, 5 CysRPs were identified for each organism, revealing that all of the proteins are potentially secreted and novel, including two of N. parvum proteins containing the CFEM domain. Interestingly, the levels of the CysRPs mRNAs change during the interaction. This study reports N. parvum as a pathogen of L. styraciflua for the first time and highlights the potential involvement of CysRPs in both organisms during this interaction.

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Section: Introductionmentioning

confidence: 99%

Insights of the Neofusicoccum parvum–Liquidambar styraciflua Interaction and Identification of New Cysteine-Rich Proteins in Both Species

Vázquez-Avendaño

Rodríguez-Haas

Velázquez-Delgado

et al. 2021

JoF

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show abstract

“…[7] pomegranate (Punica granatum) [8], peach (Prunus persica) [9] and walnut (Juglans regia) [10]. The forestry host plants include the coast redwood (Sequoia sempervirens) [11], Norfolk Island pine (Araucaria heterophylla) [12], Eucalyptus globulus [13,14], and Ginkgo biloba [15]. It is worth mentioning that most studies have focused basically on the isolation of the fungus from symptomatic or asymptomatic tissue, followed by molecular identi cation and pathogenicity testing through Koch's postulates; however, molecular information has been obtained only for the interaction between grapevine and N. parvum [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

First molecular insights into the infection process provoked by Neofusicoccum parvum in Liquidambar styraciflua and the identification of new cysteine-rich proteins in both organisms

Vázquez-Avendaño

Rodríguez-Haas

Velázquez-Delgado

et al. 2020

Preprint

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Background: Neofusicoccum parvum belongs to the Botryosphaeriaceae family, which groups endophytic and latent pathogens of woody plants responsible for diseases such as cankers, dieback and blight. It is a widespread pathogen with a broad host range, including agricultural, horticultural and forestry plants; therefore, it is relevant to characterize the molecular mechanisms involved in the disease caused by this pathogen. This work reports for the first time N. parvum as a pathogen of Liquidambar styraciflua. We established an in vitro pathosystem using foliar tissue to characterize the infection process through scanning electron microscopy (SEM). Because cysteine-rich proteins (CysRPs) have been studied for their important functions in plant-pathogen interactions, new CysRPs were identified for these organisms, and mRNA expression of these proteins was analyzed at early time points during the interaction.Results: After the first 24 hours post infection, the pathogen caused visible symptoms, and microscopic analysis at 16 days post infection revealed the presence of N. parvum pycnidia embedded in L. styraciflua leaf tissue. For both organisms, two databases with transcriptomic and genomic information were analyzed, and five new CysRPs were identified for each organism. The length varied between 95 and 204 amino acids, and in silico analysis revealed that all the proteins are potentially secreted. The search for conserved domains and phylogenetic analyses revealed that all the proteins are novel, including two of N. parvum that present the well-known CFEM domain. RT-qPCR analysis was conducted at 24 and 72 hours post infection, and the results showed changes in the levels of CysRP mRNAs for both the plant and the fungus at early stages during the interaction.Conclusions: N. parvum was identified for the first time as a pathogen of L. styraciflua, and this work presents an approach to comprehensively understand the molecular mechanisms involved in this interaction, highlighting the potential involvement of CysRPs of both organisms under this biotic stress.

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Botryosphaeria parva

2021

CABI Compendium

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Neofusicoccum parvum, agent of leaf spot on the new host Ginkgo biloba in Iran

Cited by 5 publications

References 3 publications

Insights of the Neofusicoccum parvum–Liquidambar styraciflua Interaction and Identification of New Cysteine-Rich Proteins in Both Species

Insights of the Neofusicoccum parvum–Liquidambar styraciflua Interaction and Identification of New Cysteine-Rich Proteins in Both Species

First molecular insights into the infection process provoked by Neofusicoccum parvum in Liquidambar styraciflua and the identification of new cysteine-rich proteins in both organisms

Botryosphaeria parva

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