Functional role of a novel algicidal compound produced by Pseudoruegeria sp. M32A2M on the harmful algae Alexandrium catenella

Cited 12 time in scopus
Metadata Downloads

Full metadata record

DC FieldValueLanguage
dc.contributor.authorSo-Ra Ko-
dc.contributor.authorY Jeong-
dc.contributor.authorS H Cho-
dc.contributor.authorE Lee-
dc.contributor.authorB S Jeong-
dc.contributor.authorS H Baek-
dc.contributor.authorB H Oh-
dc.contributor.authorChi-Yong Ahn-
dc.contributor.authorHee-Mock Oh-
dc.contributor.authorB K Cho-
dc.contributor.authorS Cho-
dc.date.accessioned2022-04-15T15:31:54Z-
dc.date.available2022-04-15T15:31:54Z-
dc.date.issued2022-
dc.identifier.issn00456535-
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/25775-
dc.description.abstractA marine phytoplankton dinoflagellate, Alexandrium sp. is known to cause worldwide harmful algal blooms, resulting in paralytic shellfish poisoning. In this study, we isolated a novel compound secreted by the marine bacterium Pseudoruegeria sp. M32A2M, and showed that it displays algicidal activity against A. catenella (group I). The molecular structure of the compound was analyzed by using 1H nuclear magnetic resonance (NMR), 13C NMR, and gas chromatography-mass spectrometry, which revealed that the compound was a diketopiperazine, cyclo[Ala-Gly]. Cyclo[Ala-Gly] induced a rapid decrease in the active chlorophyll a content and maximal quantum yield of photosystem II, leading to membrane disintegration after 24 h of its treatment. It showed the highest algicidal effect against diketopiperazines and also showed specific algicidal activities against several dinoflagellate species, but not for diatom species. In particular, cyclo[Ala-Gly] caused the transcriptional downregulation of the photosynthesis-related membrane complex in A. catenella, but not in the diatom Chaetoceros simplex. Based on structural modeling, we elucidated that cyclo[Ala-Gly] has a structure similar to that of plastoquinone, which transfers electrons by binding to the photosystem II core proteins PsbA and PsbD. This suggests a novel role for cyclo[Ala-Gly] as a potential inhibitor of photosynthesis.-
dc.publisherElsevier-
dc.titleFunctional role of a novel algicidal compound produced by Pseudoruegeria sp. M32A2M on the harmful algae Alexandrium catenella-
dc.title.alternativeFunctional role of a novel algicidal compound produced by Pseudoruegeria sp. M32A2M on the harmful algae Alexandrium catenella-
dc.typeArticle-
dc.citation.titleChemosphere-
dc.citation.number0-
dc.citation.endPage134535-
dc.citation.startPage134535-
dc.citation.volume300-
dc.contributor.affiliatedAuthorSo-Ra Ko-
dc.contributor.affiliatedAuthorChi-Yong Ahn-
dc.contributor.affiliatedAuthorHee-Mock Oh-
dc.contributor.alternativeName고소라-
dc.contributor.alternativeName정유진-
dc.contributor.alternativeName조상혁-
dc.contributor.alternativeName이은주-
dc.contributor.alternativeName정보성-
dc.contributor.alternativeName백승호-
dc.contributor.alternativeName오병하-
dc.contributor.alternativeName안치용-
dc.contributor.alternativeName오희목-
dc.contributor.alternativeName조병관-
dc.contributor.alternativeName조수형-
dc.identifier.bibliographicCitationChemosphere, vol. 300, pp. 134535-134535-
dc.identifier.doi10.1016/j.chemosphere.2022.134535-
dc.subject.keywordAlgicides-
dc.subject.keywordHarmful algae-
dc.subject.keywordAlexandrium catenella-
dc.subject.keywordAlgicidal bacteria-
dc.subject.keywordHarmful algal bloom-
dc.subject.localAlgicide-
dc.subject.localalgicide-
dc.subject.localAlgicides-
dc.subject.localHarmful algae-
dc.subject.localharmful algae-
dc.subject.localAlexandrium catenella-
dc.subject.localalgicidal bacteria-
dc.subject.localAlgicidal bacteria-
dc.subject.localHarmful algal blooms-
dc.subject.localharmful algal bloom-
dc.subject.localHarmful algal bloom-
dc.subject.localharmful algal bloom (HAB)-
dc.description.journalClassY-
Appears in Collections:
1. Journal Articles > Journal Articles
Files in This Item:
  • There are no files associated with this item.


Items in OpenAccess@KRIBB are protected by copyright, with all rights reserved, unless otherwise indicated.