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Tytuł pozycji:

Metabolite profiling of rhizosphere soil of different allelopathic potential rice accessions

Tytuł :
Metabolite profiling of rhizosphere soil of different allelopathic potential rice accessions
Autorzy :
Yingzhe Li
Lining Xu
Puleng Letuma
Wenxiong Lin
Pokaż więcej
Temat :
Fatty acids
Metabolomics
Rhizosphere
Allelopathy
Resin extraction
Botany
QK1-989
Źródło :
BMC Plant Biology, Vol 20, Iss 1, Pp 1-21 (2020)
Wydawca :
BMC, 2020.
Rok publikacji :
2020
Kolekcja :
LCC:Botany
Typ dokumentu :
article
Opis pliku :
electronic resource
Język :
English
ISSN :
1471-2229
Relacje :
http://link.springer.com/article/10.1186/s12870-020-02465-6; https://doaj.org/toc/1471-2229
DOI :
10.1186/s12870-020-02465-6
Dostęp URL :
https://doaj.org/article/f3bc804275514601a53e6d7989c6d0d1
Numer akcesji :
edsdoj.f3bc804275514601a53e6d7989c6d0d1
Czasopismo naukowe
Abstract Background Identification of the allelopathy-interrelated metabolites from the allelopathic rice rhizosphere is crucial to understand the allelopathic mechanism of rice, which in turn can promote its applications to farming. In this study, the metabolites from the rhizosphere soil of five different rice lines, including allelopathic rice accession PI312777 (PI) and non-allelopathic rice accession Lemont (Le) as well as their genetic derivatives (e.g., phenylalanine ammonia-lyase (PAL) gene overexpression transgenic lines of PI and Le, namely, PO and LO respectively, and PAL RNA interference line of PI, namely, PR) were identified and comparatively analyzed to explore the positive compounds that are involved in the process of rice allelopathy. Results The results showed that 21 non-polar compounds and 21 polar compounds differed in content in the rhizosphere soil of PI and Le, which include several volatile fatty acids and long-chain fatty acids. The relative contents of fatty acids also differed between PAL overexpressing or RNA interference (RNAi)-silenced line and their wild-type respectively. Acetic acid content also differed among groups, i.e., it is higher in the high allelopathic potential rice. Further analysis showed that different metabolites from the ADS8 resin-extracted phase were more abundant than that those from the ADS21 resin-extracted phase, suggesting that the allelochemicals in root exudates of allelopathic rice are mainly non-polar substances. KEGG annotation of these differential metabolites revealed that these compounds were related to nutrient metabolism, secondary metabolite synthesis, signaling substance synthesis, and toxin degradation. Conclusions Rice allelochemicals deposited in the ADS8 resin-extracted phase were more abundant than those in the ADS21 resin-extracted phase. Allelochemicals in root exudates of allelopathic rice are mainly non-polar substances, and long-chain fatty acids are considered as allelopathy interrelated metabolites.
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