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Alternaria capsicicola sp. nov., a new species causing leaf spot of pepper (Capsicum annuum) in Malaysia

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An Erratum to this article was published on 23 July 2015

Abstract

A new species of Alternaria causing leaf spot of pepper (Capsicum annuum) obtained from the Cameron highlands, Pahang, Malaysia, was determined based on phylogenetic analyses, morphological characteristics, and pathogenicity assays. Phylogenetic analyses of combined dataset of the glyceraldehyde-3-phosphate dehydrogenase (gpd), Alternaria allergen a 1 (Alt a1) and calmodulin genes revealed that the new isolates clustered into a subclade distinct from the closely related Alternaria species A. tomato and A. burnsii. The solitary or short chains of conidia resemble those of A. burnsii. However, conidia with long beaks are morphologically similar to A. tomato. Hence, the pathogenic fungus is proposed as Alternaria capsicicola sp. nov. Pathogenicity assays indicated that A. capsicicola causes leaf spot on pepper.

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Acknowledgments

We are grateful to the Malaysian Agricultural Research and Development Institute (MARDI) for collaboration in this study. We acknowledge laboratory assistants and coworkers in plant protection department of University Putra Malaysia (UPM) for valuable field trip arrangements and assistance during field samplings.

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Authors and Affiliations

  1. Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor Darul Ehsan, Malaysia

    Abbas Nasehi, Jugah Bin Kadir, Farnaz Abed Ashtiani, Mui Yun Wong, Hajar Ghadirian, Farshid Mahmodi & Elham Golkhandan

  2. Isfahan Agricultural and Natural Resources Research Center, Plant Pests and Diseases Research Institute, Isfahan, Iran

    Mehdi Nasr-Esfahani

  3. Laboratory of Plantation Crops, Institute of Tropical Agriculture, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor Darul Ehsan, Malaysia

    Mui Yun Wong

  4. Laboratory of Biodiversity and Conservation Institute of Tropical Forestry and Forest Product (INTROP), Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor Darul Ehsan, Malaysia

    Siti Khadijah Rambe

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  1. Abbas Nasehi
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  2. Jugah Bin Kadir
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  3. Farnaz Abed Ashtiani
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  4. Mehdi Nasr-Esfahani
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Correspondence to Abbas Nasehi or Jugah Bin Kadir.

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Nasehi, A., Kadir, J.B., Abed Ashtiani, F. et al. Alternaria capsicicola sp. nov., a new species causing leaf spot of pepper (Capsicum annuum) in Malaysia. Mycol Progress 13, 991 (2014). https://doi.org/10.1007/s11557-014-0991-1

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  • DOI: https://doi.org/10.1007/s11557-014-0991-1

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