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...
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| Veröffentlicht in: | PloS one 2014-09, Vol.9 (9), p.e108242-e108242 |
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| creator | Muvea, Alexander M Meyhöfer, Rainer Subramanian, Sevgan Poehling, Hans-Michael Ekesi, Sunday Maniania, Nguya K |
| 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. |
| doi_str_mv | 10.1371/journal.pone.0108242 |
| format | Article |
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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.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0108242</identifier><identifier>PMID: 25254657</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Agronomy ; Allium cepa ; Animals ; Aphis gossypii ; Beauveria bassiana ; Biology and Life Sciences ; Clonostachys rosea ; Colonization ; Cosmopolites sordidus ; Economic conditions ; Economic importance ; Eggs ; Endophytes ; Entomopathogenic fungi ; Feeding ; Flowers & plants ; Fungi ; Fusarium ; Health aspects ; Herbivory ; Horticulture ; Host plants ; Inoculation ; Insecticides ; Lecanicillium lecanii ; Molecular Sequence Data ; Onions ; Onions - microbiology ; Pests ; Physiology ; Plant resistance ; Plant tissues ; Plants (botany) ; Seedlings ; Seedlings - microbiology ; Seeds ; Seeds - microbiology ; Studies ; Thrips ; Thrips tabaci ; Thysanoptera - physiology ; Trichoderma atroviride ; Trichoderma harzianum ; Vegetables</subject><ispartof>PloS one, 2014-09, Vol.9 (9), p.e108242-e108242</ispartof><rights>COPYRIGHT 2014 Public Library of Science</rights><rights>2014 Muvea et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2014 Muvea et al 2014 Muvea et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-c178a25950bd023b3cc291b862e55c3c662eb53db54d460177cab019bbe22b323</citedby><cites>FETCH-LOGICAL-c692t-c178a25950bd023b3cc291b862e55c3c662eb53db54d460177cab019bbe22b323</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4177896/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4177896/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79600,79601</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25254657$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Zeng, Ren-Sen</contributor><creatorcontrib>Muvea, Alexander M</creatorcontrib><creatorcontrib>Meyhöfer, Rainer</creatorcontrib><creatorcontrib>Subramanian, Sevgan</creatorcontrib><creatorcontrib>Poehling, Hans-Michael</creatorcontrib><creatorcontrib>Ekesi, Sunday</creatorcontrib><creatorcontrib>Maniania, Nguya K</creatorcontrib><title>Colonization of onions by endophytic fungi and their impacts on the biology of Thrips tabaci</title><title>PloS one</title><addtitle>PLoS One</addtitle><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. 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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.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>25254657</pmid><doi>10.1371/journal.pone.0108242</doi><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 1932-6203 |
| ispartof | PloS one, 2014-09, Vol.9 (9), p.e108242-e108242 |
| issn | 1932-6203 1932-6203 |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; Public Library of Science (PLoS) Journals Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Agronomy Allium cepa Animals Aphis gossypii Beauveria bassiana Biology and Life Sciences Clonostachys rosea Colonization Cosmopolites sordidus Economic conditions Economic importance Eggs Endophytes Entomopathogenic fungi Feeding Flowers & plants Fungi Fusarium Health aspects Herbivory Horticulture Host plants Inoculation Insecticides Lecanicillium lecanii Molecular Sequence Data Onions Onions - microbiology Pests Physiology Plant resistance Plant tissues Plants (botany) Seedlings Seedlings - microbiology Seeds Seeds - microbiology Studies Thrips Thrips tabaci Thysanoptera - physiology Trichoderma atroviride Trichoderma harzianum Vegetables |
| title | Colonization of onions by endophytic fungi and their impacts on the biology of Thrips tabaci |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-26T01%3A16%3A12IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Colonization%20of%20onions%20by%20endophytic%20fungi%20and%20their%20impacts%20on%20the%20biology%20of%20Thrips%20tabaci&rft.jtitle=PloS%20one&rft.au=Muvea,%20Alexander%20M&rft.date=2014-09-25&rft.volume=9&rft.issue=9&rft.spage=e108242&rft.epage=e108242&rft.pages=e108242-e108242&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0108242&rft_dat=%3Cgale_plos_%3EA417793625%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1979818755&rft_id=info:pmid/25254657&rft_galeid=A417793625&rft_doaj_id=oai_doaj_org_article_a53c322d26194113892aa5ba41f6229c&rfr_iscdi=true |