Morpho-Molecular Characterization of Two Ampelomyces spp. (Pleosporales) Strains Mycoparasites of Powdery Mildew of Hevea brasiliensis

Powdery mildew disease of rubber affects immature green leaves, buds, inflorescences, and other immature tissues of rubber trees, resulting in up to 45% losses in rubber latex yield worldwide. The disease is often controlled by dusting the diseased plants with powdered sulfur, which can have long-te...

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Main Authors: Kapila K. Liyanage, Sehroon Khan, Siraprapa Brooks, Peter E. Mortimer, Samantha C. Karunarathna, Jianchu Xu, Kevin D. Hyde
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-01-01
Series:Frontiers in Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fmicb.2018.00012/full
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author Kapila K. Liyanage
Kapila K. Liyanage
Kapila K. Liyanage
Kapila K. Liyanage
Sehroon Khan
Sehroon Khan
Siraprapa Brooks
Peter E. Mortimer
Peter E. Mortimer
Samantha C. Karunarathna
Samantha C. Karunarathna
Jianchu Xu
Jianchu Xu
Kevin D. Hyde
Kevin D. Hyde
author_facet Kapila K. Liyanage
Kapila K. Liyanage
Kapila K. Liyanage
Kapila K. Liyanage
Sehroon Khan
Sehroon Khan
Siraprapa Brooks
Peter E. Mortimer
Peter E. Mortimer
Samantha C. Karunarathna
Samantha C. Karunarathna
Jianchu Xu
Jianchu Xu
Kevin D. Hyde
Kevin D. Hyde
author_sort Kapila K. Liyanage
collection DOAJ
description Powdery mildew disease of rubber affects immature green leaves, buds, inflorescences, and other immature tissues of rubber trees, resulting in up to 45% losses in rubber latex yield worldwide. The disease is often controlled by dusting the diseased plants with powdered sulfur, which can have long-term negative effects on the environment. Therefore, it is necessary to search for alternative and environmentally friendly control methods for this disease. This study aimed to identify mycoparasites associated with rubber powdery mildew species, and characterize them on the basis of morpho-molecular characteristics and phylogenetic analyses of ITS rDNA regions. We observed that the Ampelomyces fungus parasitizes rubber powdery mildew, and eventually destroys it. Furthermore, on the basis of phylogenetic analyses and morphological characteristics we confirmed that the Ampelomyces mycoparasite isolated from rubber powdery mildew is closely related to other mycohost taxa in the Erysiphe genus. A total of 73 (71 retrieved from GenBank and two obtained from fresh collections of rubber powdery mildew fungi) Ampelomyces spp. were analyzed using ITS rDNA sequences and 153 polymorphic sites were identified through haplotypic analyses. A total of 28 haplotypes (H1–H28) were identified to have a complex network of mutation events. The results from phylogenetic tree constructed on the basis of maximum likelihood analyses, and the haplotype network tree revealed similar relationships of clustering pattern. This work presents the first report on morpho-molecular characterization of Ampelomyces species that are mycoparasites of powdery mildew of Hevea brasiliensis.
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spelling doaj.art-ee392eba3f444243ae3362ad87a054bf2022-12-22T03:12:05ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2018-01-01910.3389/fmicb.2018.00012307461Morpho-Molecular Characterization of Two Ampelomyces spp. (Pleosporales) Strains Mycoparasites of Powdery Mildew of Hevea brasiliensisKapila K. Liyanage0Kapila K. Liyanage1Kapila K. Liyanage2Kapila K. Liyanage3Sehroon Khan4Sehroon Khan5Siraprapa Brooks6Peter E. Mortimer7Peter E. Mortimer8Samantha C. Karunarathna9Samantha C. Karunarathna10Jianchu Xu11Jianchu Xu12Kevin D. Hyde13Kevin D. Hyde14Center of Excellence in Fungal Research, and School of Science, Mae Fah Luang University, Chiang Rai, ThailandCenter for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaWorld Agroforestry Centre, East and Central Asia, Kunming, ChinaRubber Research Institute of Sri Lanka, Agalawatta, Sri LankaCenter for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaWorld Agroforestry Centre, East and Central Asia, Kunming, ChinaCenter of Excellence in Fungal Research, and School of Science, Mae Fah Luang University, Chiang Rai, ThailandCenter for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaWorld Agroforestry Centre, East and Central Asia, Kunming, ChinaCenter for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaWorld Agroforestry Centre, East and Central Asia, Kunming, ChinaCenter for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaWorld Agroforestry Centre, East and Central Asia, Kunming, ChinaCenter of Excellence in Fungal Research, and School of Science, Mae Fah Luang University, Chiang Rai, ThailandCenter for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaPowdery mildew disease of rubber affects immature green leaves, buds, inflorescences, and other immature tissues of rubber trees, resulting in up to 45% losses in rubber latex yield worldwide. The disease is often controlled by dusting the diseased plants with powdered sulfur, which can have long-term negative effects on the environment. Therefore, it is necessary to search for alternative and environmentally friendly control methods for this disease. This study aimed to identify mycoparasites associated with rubber powdery mildew species, and characterize them on the basis of morpho-molecular characteristics and phylogenetic analyses of ITS rDNA regions. We observed that the Ampelomyces fungus parasitizes rubber powdery mildew, and eventually destroys it. Furthermore, on the basis of phylogenetic analyses and morphological characteristics we confirmed that the Ampelomyces mycoparasite isolated from rubber powdery mildew is closely related to other mycohost taxa in the Erysiphe genus. A total of 73 (71 retrieved from GenBank and two obtained from fresh collections of rubber powdery mildew fungi) Ampelomyces spp. were analyzed using ITS rDNA sequences and 153 polymorphic sites were identified through haplotypic analyses. A total of 28 haplotypes (H1–H28) were identified to have a complex network of mutation events. The results from phylogenetic tree constructed on the basis of maximum likelihood analyses, and the haplotype network tree revealed similar relationships of clustering pattern. This work presents the first report on morpho-molecular characterization of Ampelomyces species that are mycoparasites of powdery mildew of Hevea brasiliensis.http://journal.frontiersin.org/article/10.3389/fmicb.2018.00012/fullErysiphehaplotypemorphologymycohostmycoparasite
spellingShingle Kapila K. Liyanage
Kapila K. Liyanage
Kapila K. Liyanage
Kapila K. Liyanage
Sehroon Khan
Sehroon Khan
Siraprapa Brooks
Peter E. Mortimer
Peter E. Mortimer
Samantha C. Karunarathna
Samantha C. Karunarathna
Jianchu Xu
Jianchu Xu
Kevin D. Hyde
Kevin D. Hyde
Morpho-Molecular Characterization of Two Ampelomyces spp. (Pleosporales) Strains Mycoparasites of Powdery Mildew of Hevea brasiliensis
Frontiers in Microbiology
Erysiphe
haplotype
morphology
mycohost
mycoparasite
title Morpho-Molecular Characterization of Two Ampelomyces spp. (Pleosporales) Strains Mycoparasites of Powdery Mildew of Hevea brasiliensis
title_full Morpho-Molecular Characterization of Two Ampelomyces spp. (Pleosporales) Strains Mycoparasites of Powdery Mildew of Hevea brasiliensis
title_fullStr Morpho-Molecular Characterization of Two Ampelomyces spp. (Pleosporales) Strains Mycoparasites of Powdery Mildew of Hevea brasiliensis
title_full_unstemmed Morpho-Molecular Characterization of Two Ampelomyces spp. (Pleosporales) Strains Mycoparasites of Powdery Mildew of Hevea brasiliensis
title_short Morpho-Molecular Characterization of Two Ampelomyces spp. (Pleosporales) Strains Mycoparasites of Powdery Mildew of Hevea brasiliensis
title_sort morpho molecular characterization of two ampelomyces spp pleosporales strains mycoparasites of powdery mildew of hevea brasiliensis
topic Erysiphe
haplotype
morphology
mycohost
mycoparasite
url http://journal.frontiersin.org/article/10.3389/fmicb.2018.00012/full
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