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Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci
Endophytic fungi, which live within host plant tissues without causing any visible symptom of infection, are important mutualists that mediate plant–herbivore interactions. Thrips tabaci (Lindeman) is one of the key pests of onion, Allium cepa L., an economically important agricultural crop cultivat...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Public Library of Science
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4177896/ https://www.ncbi.nlm.nih.gov/pubmed/25254657 http://dx.doi.org/10.1371/journal.pone.0108242 |
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author | Muvea, Alexander M. Meyhöfer, Rainer Subramanian, Sevgan Poehling, Hans-Michael Ekesi, Sunday Maniania, Nguya K. |
author_facet | Muvea, Alexander M. Meyhöfer, Rainer Subramanian, Sevgan Poehling, Hans-Michael Ekesi, Sunday Maniania, Nguya K. |
author_sort | Muvea, Alexander M. |
collection | PubMed |
description | Endophytic fungi, which live within host plant tissues without causing any visible symptom of infection, are important mutualists that mediate plant–herbivore interactions. Thrips tabaci (Lindeman) is one of the key pests of onion, Allium cepa L., an economically important agricultural crop cultivated worldwide. However, information on endophyte colonization of onions, and their impacts on the biology of thrips feeding on them, is lacking. We tested the colonization of onion plants by selected fungal endophyte isolates using two inoculation methods. The effects of inoculated endophytes on T. tabaci infesting onion were also examined. Seven fungal endophytes used in our study were able to colonize onion plants either by the seed or seedling inoculation methods. Seed inoculation resulted in 1.47 times higher mean percentage post-inoculation recovery of all the endophytes tested as compared to seedling inoculation. Fewer thrips were observed on plants inoculated with Clonostachys rosea ICIPE 707, Trichoderma asperellum M2RT4, Trichoderma atroviride ICIPE 710, Trichoderma harzianum 709, Hypocrea lixii F3ST1 and Fusarium sp. ICIPE 712 isolates as compared to those inoculated with Fusarium sp. ICIPE 717 and the control treatments. Onion plants colonized by C. rosea ICIPE 707, T. asperellum M2RT4, T. atroviride ICIPE 710 and H. lixii F3ST1 had significantly lower feeding punctures as compared to the other treatments. Among the isolates tested, the lowest numbers of eggs were laid by T. tabaci on H. lixii F3ST1 and C. rosea ICIPE 707 inoculated plants. These results extend the knowledge on colonization of onions by fungal endophytes and their effects on Thrips tabaci. |
format | Online Article Text |
id | pubmed-4177896 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-41778962014-10-02 Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci Muvea, Alexander M. Meyhöfer, Rainer Subramanian, Sevgan Poehling, Hans-Michael Ekesi, Sunday Maniania, Nguya K. PLoS One Research Article Endophytic fungi, which live within host plant tissues without causing any visible symptom of infection, are important mutualists that mediate plant–herbivore interactions. Thrips tabaci (Lindeman) is one of the key pests of onion, Allium cepa L., an economically important agricultural crop cultivated worldwide. However, information on endophyte colonization of onions, and their impacts on the biology of thrips feeding on them, is lacking. We tested the colonization of onion plants by selected fungal endophyte isolates using two inoculation methods. The effects of inoculated endophytes on T. tabaci infesting onion were also examined. Seven fungal endophytes used in our study were able to colonize onion plants either by the seed or seedling inoculation methods. Seed inoculation resulted in 1.47 times higher mean percentage post-inoculation recovery of all the endophytes tested as compared to seedling inoculation. Fewer thrips were observed on plants inoculated with Clonostachys rosea ICIPE 707, Trichoderma asperellum M2RT4, Trichoderma atroviride ICIPE 710, Trichoderma harzianum 709, Hypocrea lixii F3ST1 and Fusarium sp. ICIPE 712 isolates as compared to those inoculated with Fusarium sp. ICIPE 717 and the control treatments. Onion plants colonized by C. rosea ICIPE 707, T. asperellum M2RT4, T. atroviride ICIPE 710 and H. lixii F3ST1 had significantly lower feeding punctures as compared to the other treatments. Among the isolates tested, the lowest numbers of eggs were laid by T. tabaci on H. lixii F3ST1 and C. rosea ICIPE 707 inoculated plants. These results extend the knowledge on colonization of onions by fungal endophytes and their effects on Thrips tabaci. Public Library of Science 2014-09-25 /pmc/articles/PMC4177896/ /pubmed/25254657 http://dx.doi.org/10.1371/journal.pone.0108242 Text en © 2014 Muvea et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Muvea, Alexander M. Meyhöfer, Rainer Subramanian, Sevgan Poehling, Hans-Michael Ekesi, Sunday Maniania, Nguya K. Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci |
title | Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci
|
title_full | Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci
|
title_fullStr | Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci
|
title_full_unstemmed | Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci
|
title_short | Colonization of Onions by Endophytic Fungi and Their Impacts on the Biology of Thrips tabaci
|
title_sort | colonization of onions by endophytic fungi and their impacts on the biology of thrips tabaci |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4177896/ https://www.ncbi.nlm.nih.gov/pubmed/25254657 http://dx.doi.org/10.1371/journal.pone.0108242 |
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