2020
DOI: 10.1007/s13562-020-00574-9
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Molecular and functional characterization of ferulate-5-hydroxylase in Populus tomentosa

Abstract: Ferulate-5-hydroxylase (F5H) is a key rate-limiting enzyme for the conversion of guaiacyl monolignol (G-monolignol) to syringyl monolignol (S-monolignol) in the specific synthetic lignin pathway, through the catalysis of the 5-hydroxylation of S-monolignol precursors ferulic acid, conifer aldehyde, and coniferyl alcohol. In this study, we cloned the F5H gene of Populus tomenta (PtoF5H), whose product has a highly conserved domain of P450-dependent monooxygenase family. Subcellular localization result demonstra… Show more

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Cited by 5 publications
(6 citation statements)
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“…5-hydroxylase, cinnamoyl CoA reductase, CAD, and peroxidases/laccases. 24,[109][110][111][112][113][114][115][116][117][118] The functions of the individual proteins in regulating lignin biosynthesis and genetic manipulations that influence lignin biosynthesis can be accessed from our previous review of article (Figures 1 and 2). 24 DNA motifs are rich in adenosine and cytosine (AC) elements that promote and largely influence lignin biosynthesis.…”
Section: Regulation Of Lignin Biosynthesismentioning
confidence: 99%
“…5-hydroxylase, cinnamoyl CoA reductase, CAD, and peroxidases/laccases. 24,[109][110][111][112][113][114][115][116][117][118] The functions of the individual proteins in regulating lignin biosynthesis and genetic manipulations that influence lignin biosynthesis can be accessed from our previous review of article (Figures 1 and 2). 24 DNA motifs are rich in adenosine and cytosine (AC) elements that promote and largely influence lignin biosynthesis.…”
Section: Regulation Of Lignin Biosynthesismentioning
confidence: 99%
“…The F5H is the third P450-dependent protein that regulates lignin biosynthesis. It catalyzes S-monolignol from G-monolignol through 5-hydroxylation of coniferaldehyde and coniferyl alcohols [ 85 , 86 ]. The role of F5H in lignin production is proposed to be thwarted by microRNA from Bacopa monnieri ( Bm-miR172c-5p ) which cleaves F5H and interferes with lignin elicitation [ 87 ].…”
Section: A Brief Overview Of Monolignols Biosynthesis and Lignificationmentioning
confidence: 99%
“…Hence, Bm-miR172c-5p maintains B. monnieri native phenotype under different environmental conditions. The OE- PtoF5H lines in P. tomenta mediate the proportional enhancement of S-monolignol [ 85 ].…”
Section: A Brief Overview Of Monolignols Biosynthesis and Lignificationmentioning
confidence: 99%
“…The cytotoxicity of RsC1, PgC1, Calix8Ph and PgC1Cu was first evaluated using the MTT cell viability assay, as previously described (39,40). In this method, MTT is reduced by mitochondrial dehydrogenase in living cells to produce insoluble purple formazan.…”
Section: Mtt Cell Viability Assaymentioning
confidence: 99%