Evaluation of biocontrol efficacy of rhizosphere Pseudomonas aeruginosa for management of Phytophthora capsici of pepper
A significant population of biocontrol microorganisms resides in the rhizosphere of plants, which can be utilized for plant disease control. To explore the potential of rhizosphere soil microorganisms as biocontrol agents against pepper blight, a bacterial strain Pa608 was screened from rhizosphere...
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| Veröffentlicht in: | PloS one 2024-09, Vol.19 (9), p.e0309705 |
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| creator | Li, Chenzhen Gao, Xianghui Huo, Yunfeng Asseri, Tahani A Y Tian, Xueliang Luo, Kun |
| description | A significant population of biocontrol microorganisms resides in the rhizosphere of plants, which can be utilized for plant disease control. To explore the potential of rhizosphere soil microorganisms as biocontrol agents against pepper blight, a bacterial strain Pa608 was screened from rhizosphere soil of pepper and identified as Pseudomonas aeruginosa through morphological characteristics and 16S rRNA sequences. The result showed that the strain Pa608 demonstrated antagonistic activity against Phytophthora capsici, effectively suppressing mycelial growth. The potted experiment showed a high control efficacy of 88.0%. Remarkably, the strain Pa608 also reduced the disease index of pepper blight in the field, resulting in control efficiencies of 74.9%. Moreover, the strain Pa608 also enhanced pepper plant height and yield. GC-MS analysis revealed the production of numerous secondary metabolites by the strain Pa608, with α-pinene displaying potent anti-oomycete activity by inhibiting P. capsici growth. In conclusion, P. aeruginosa Pa608 exhibited high biocontrol activity against P. capsici and can be utilized for the management of P. capsici in pepper cultivation. |
| doi_str_mv | 10.1371/journal.pone.0309705 |
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To explore the potential of rhizosphere soil microorganisms as biocontrol agents against pepper blight, a bacterial strain Pa608 was screened from rhizosphere soil of pepper and identified as Pseudomonas aeruginosa through morphological characteristics and 16S rRNA sequences. The result showed that the strain Pa608 demonstrated antagonistic activity against Phytophthora capsici, effectively suppressing mycelial growth. The potted experiment showed a high control efficacy of 88.0%. Remarkably, the strain Pa608 also reduced the disease index of pepper blight in the field, resulting in control efficiencies of 74.9%. Moreover, the strain Pa608 also enhanced pepper plant height and yield. GC-MS analysis revealed the production of numerous secondary metabolites by the strain Pa608, with α-pinene displaying potent anti-oomycete activity by inhibiting P. capsici growth. In conclusion, P. aeruginosa Pa608 exhibited high biocontrol activity against P. capsici and can be utilized for the management of P. capsici in pepper cultivation.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0309705</identifier><identifier>PMID: 39302985</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Analysis ; Bacteria ; Biological control ; Biological Control Agents ; Biopesticides ; Blight ; Capsicum - microbiology ; Disease control ; Effectiveness ; Enzymes ; Metabolites ; Microorganisms ; Pathogens ; Pest Control, Biological - methods ; Pesticide pollution ; Pests ; Physical characteristics ; Phytophthora - physiology ; Phytophthora capsici ; Plant bacterial diseases ; Plant diseases ; Plant Diseases - microbiology ; Plant Diseases - prevention & control ; Plant growth ; Plant layout ; Plant resistance ; Prevention ; Production management ; Pseudomonas aeruginosa ; Pseudomonas aeruginosa - physiology ; Pseudomonas aeruginosa infections ; Rhizosphere ; Rhizosphere microorganisms ; Risk factors ; RNA, Ribosomal, 16S - genetics ; rRNA 16S ; Secondary metabolites ; Seeds ; Soil Microbiology ; Soil microorganisms ; Strain analysis ; Sweet peppers ; Vegetables ; VOCs ; Volatile organic compounds ; α-Pinene</subject><ispartof>PloS one, 2024-09, Vol.19 (9), p.e0309705</ispartof><rights>Copyright: © 2024 Li et al. 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 credited.</rights><rights>COPYRIGHT 2024 Public Library of Science</rights><rights>2024 Li 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>2024 Li 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><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c450t-6b41880621cad16f0f5ba3ba313d557cf7b338ab5f7639fc32e532639dbe723c3</cites><orcidid>0000-0003-2255-2749</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0309705&type=printable$$EPDF$$P50$$Gplos$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0309705$$EHTML$$P50$$Gplos$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,2915,23845,27901,27902,79343,79344</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39302985$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Arif, Muhammad</contributor><creatorcontrib>Li, Chenzhen</creatorcontrib><creatorcontrib>Gao, Xianghui</creatorcontrib><creatorcontrib>Huo, Yunfeng</creatorcontrib><creatorcontrib>Asseri, Tahani A Y</creatorcontrib><creatorcontrib>Tian, Xueliang</creatorcontrib><creatorcontrib>Luo, Kun</creatorcontrib><title>Evaluation of biocontrol efficacy of rhizosphere Pseudomonas aeruginosa for management of Phytophthora capsici of pepper</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>A significant population of biocontrol microorganisms resides in the rhizosphere of plants, which can be utilized for plant disease control. To explore the potential of rhizosphere soil microorganisms as biocontrol agents against pepper blight, a bacterial strain Pa608 was screened from rhizosphere soil of pepper and identified as Pseudomonas aeruginosa through morphological characteristics and 16S rRNA sequences. The result showed that the strain Pa608 demonstrated antagonistic activity against Phytophthora capsici, effectively suppressing mycelial growth. The potted experiment showed a high control efficacy of 88.0%. Remarkably, the strain Pa608 also reduced the disease index of pepper blight in the field, resulting in control efficiencies of 74.9%. Moreover, the strain Pa608 also enhanced pepper plant height and yield. GC-MS analysis revealed the production of numerous secondary metabolites by the strain Pa608, with α-pinene displaying potent anti-oomycete activity by inhibiting P. capsici growth. In conclusion, P. aeruginosa Pa608 exhibited high biocontrol activity against P. capsici and can be utilized for the management of P. capsici in pepper cultivation.</description><subject>Analysis</subject><subject>Bacteria</subject><subject>Biological control</subject><subject>Biological Control Agents</subject><subject>Biopesticides</subject><subject>Blight</subject><subject>Capsicum - microbiology</subject><subject>Disease control</subject><subject>Effectiveness</subject><subject>Enzymes</subject><subject>Metabolites</subject><subject>Microorganisms</subject><subject>Pathogens</subject><subject>Pest Control, Biological - methods</subject><subject>Pesticide pollution</subject><subject>Pests</subject><subject>Physical characteristics</subject><subject>Phytophthora - physiology</subject><subject>Phytophthora capsici</subject><subject>Plant bacterial diseases</subject><subject>Plant diseases</subject><subject>Plant Diseases - microbiology</subject><subject>Plant Diseases - prevention & control</subject><subject>Plant growth</subject><subject>Plant layout</subject><subject>Plant resistance</subject><subject>Prevention</subject><subject>Production management</subject><subject>Pseudomonas aeruginosa</subject><subject>Pseudomonas aeruginosa - 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Academic</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Chenzhen</au><au>Gao, Xianghui</au><au>Huo, Yunfeng</au><au>Asseri, Tahani A Y</au><au>Tian, Xueliang</au><au>Luo, Kun</au><au>Arif, Muhammad</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of biocontrol efficacy of rhizosphere Pseudomonas aeruginosa for management of Phytophthora capsici of pepper</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2024-09-20</date><risdate>2024</risdate><volume>19</volume><issue>9</issue><spage>e0309705</spage><pages>e0309705-</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>A significant population of biocontrol microorganisms resides in the rhizosphere of plants, which can be utilized for plant disease control. To explore the potential of rhizosphere soil microorganisms as biocontrol agents against pepper blight, a bacterial strain Pa608 was screened from rhizosphere soil of pepper and identified as Pseudomonas aeruginosa through morphological characteristics and 16S rRNA sequences. The result showed that the strain Pa608 demonstrated antagonistic activity against Phytophthora capsici, effectively suppressing mycelial growth. The potted experiment showed a high control efficacy of 88.0%. Remarkably, the strain Pa608 also reduced the disease index of pepper blight in the field, resulting in control efficiencies of 74.9%. Moreover, the strain Pa608 also enhanced pepper plant height and yield. GC-MS analysis revealed the production of numerous secondary metabolites by the strain Pa608, with α-pinene displaying potent anti-oomycete activity by inhibiting P. capsici growth. In conclusion, P. aeruginosa Pa608 exhibited high biocontrol activity against P. capsici and can be utilized for the management of P. capsici in pepper cultivation.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>39302985</pmid><doi>10.1371/journal.pone.0309705</doi><tpages>e0309705</tpages><orcidid>https://orcid.org/0000-0003-2255-2749</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Analysis Bacteria Biological control Biological Control Agents Biopesticides Blight Capsicum - microbiology Disease control Effectiveness Enzymes Metabolites Microorganisms Pathogens Pest Control, Biological - methods Pesticide pollution Pests Physical characteristics Phytophthora - physiology Phytophthora capsici Plant bacterial diseases Plant diseases Plant Diseases - microbiology Plant Diseases - prevention & control Plant growth Plant layout Plant resistance Prevention Production management Pseudomonas aeruginosa Pseudomonas aeruginosa - physiology Pseudomonas aeruginosa infections Rhizosphere Rhizosphere microorganisms Risk factors RNA, Ribosomal, 16S - genetics rRNA 16S Secondary metabolites Seeds Soil Microbiology Soil microorganisms Strain analysis Sweet peppers Vegetables VOCs Volatile organic compounds α-Pinene |
| title | Evaluation of biocontrol efficacy of rhizosphere Pseudomonas aeruginosa for management of Phytophthora capsici of pepper |
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