Bacterial diketopiperazines stimulate diatom growth and lipid accumulation.
Journal
Plant physiology
ISSN: 1532-2548
Titre abrégé: Plant Physiol
Pays: United States
ID NLM: 0401224
Informations de publication
Date de publication:
11 06 2021
11 06 2021
Historique:
received:
02
11
2020
accepted:
03
02
2021
pubmed:
24
2
2021
medline:
1
3
2022
entrez:
23
2
2021
Statut:
ppublish
Résumé
Diatoms are photosynthetic microalgae that fix a significant fraction of the world's carbon. Because of their photosynthetic efficiency and high-lipid content, diatoms are priority candidates for biofuel production. Here, we report that sporulating Bacillus thuringiensis and other members of the Bacillus cereus group, when in co-culture with the marine diatom Phaeodactylum tricornutum, significantly increase diatom cell count. Bioassay-guided purification of the mother cell lysate of B. thuringiensis led to the identification of two diketopiperazines (DKPs) that stimulate both P. tricornutum growth and increase its lipid content. These findings may be exploited to enhance P. tricornutum growth and microalgae-based biofuel production. As increasing numbers of DKPs are isolated from marine microbes, the work gives potential clues to bacterial-produced growth factors for marine microalgae.
Identifiants
pubmed: 33620482
pii: 6147006
doi: 10.1093/plphys/kiab080
pmc: PMC8195512
doi:
Substances chimiques
Biofuels
0
Diketopiperazines
0
Carbon
7440-44-0
Types de publication
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
1159-1170Commentaires et corrections
Type : CommentIn
Informations de copyright
© American Society of Plant Biologists 2021. All rights reserved. For permissions, please email: journals.permissions@oup.com.
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