| 12 matches found in 3 documents. Search time: 0.266 seconds. |
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Score: 7.00 |
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| Title: A novel gene IBF1 is required for the inhibition of brown pigment deposition in rice hull furrows .
| | Author: Shao T Qian Q Tang D Chen J Li M Cheng Z Luo Q | | Journal: Theor Appl Genet Citation: V : 125 P : 381-90 Year: 2012 Type: In-Process | | Literature: oryza Field: abstract Doc ID: pub22419106 Accession (PMID): 22419106 | | Abstract: The role of flavonoids as the major red , blue , purple and brown pigments in plants has gained these secondary products a great deal of attention over the years .
In this study , we characterized a rice inhibitor for brown furrows1 ( ibf1 ) mutant .
In the ibf1 mutant , brown pigments specifically accumulate in hull furrows during seed maturation and reach a maximum level in dry seeds .
Higher amounts of total flavonoids and anthocyanin in hull may be responsible for the brown pigmentation of ibf1 .
The IBF1 gene , which encodes a similar kelch repeat-containing F-box protein , was isolated by map-based cloning approach .
Real-time RT-PCR and GUS activity assays revealed that IBF1 specifically expressed in reproductive it issues .
GFP-IBF1 fusion protein mainly localized in cytoplasm .
The expression of some major structural enzymatic genes involved in flavonoids biosynthesis could be up or down-regulated to some different extent in ibf1 mutant .
Our data suggested that IBF1 as a suppressor could inhibit the brown pigmentation of rice hull furrows .
| Matching Sentences:
[ Sen. 2, subscore: 1.00 ]: In this study , we characterized a rice inhibitor for brown furrows1 ( ibf1 ) mutant .
[ Sen. 3, subscore: 1.00 ]: In the ibf1 mutant , brown pigments specifically accumulate in hull furrows during seed maturation and reach a maximum level in dry seeds .
[ Sen. 4, subscore: 1.00 ]: Higher amounts of total flavonoids and anthocyanin in hull may be responsible for the brown pigmentation of ibf1 .
[ Sen. 5, subscore: 1.00 ]: The IBF1 gene , which encodes a similar kelch repeat-containing F-box protein , was isolated by map-based cloning approach .
[ Sen. 6, subscore: 1.00 ]: Real-time RT-PCR and GUS activity assays revealed that IBF1 specifically expressed in reproductive it issues .
[ Sen. 8, subscore: 1.00 ]: The expression of some major structural enzymatic genes involved in flavonoids biosynthesis could be up or down-regulated to some different extent in ibf1 mutant .
[ Sen. 9, subscore: 1.00 ]: Our data suggested that IBF1 as a suppressor could inhibit the brown pigmentation of rice hull furrows .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
Score: 4.00 |
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| Title: Lipophilic and hydrophilic antioxidants and their antioxidant activities in purple rice bran .
| | Author: Jang S Xu Z | | Journal: J Agric Food Chem Citation: V : 57 P : 858-62 Year: 2009 Type: MEDLINE | | Literature: oryza Field: abstract Doc ID: pub19138081 Accession (PMID): 19138081 | | Abstract: Purple rice bran was separated and collected at two different milling periods , resulting in two bran ( outer and inner layer ) fractions .
The distribution of lipophilic and hydrophilic antioxidants and their antioxidant activities in the two fractions were studied .
The bran fractions were extracted with hexane followed by methanol to obtain lipophilic and hydrophilic extracts , respectively .
The total phenolic content and free radical scavenging activity of the extracts were determined and compared .
The lipophilic extract from the outer bran fraction ( OBF ) exhibited a lower level of total tocols and gamma-tocols , compared with the inner bran fraction ( IBF ) , while the levels of gamma-oryzanol in both fractions were not different .
However , the lipophilic phenolic content and free radial scavenging activity of the OBF were 6 . 0 microg catechin equivalent ( CE ) /g and 5 . 6 micromol trolox equivalent ( TE ) /g and higher than those of the IBF , respectively .
For the hydrophilic extracts , the level of anthocyanins in the IBF ( 29 . 0 mg/g ) was 8 times higher than that in the OBF .
Also , the hydrophilic phenolic content and free radical scavenging activity of the IBF were 489 . 1 microg CE/g and 433 . 6 micromol TE/g , respectively , while they were 113 . 9 microg CE/g and 78 . 2 micromol TE/g in the OBF .
Both hydrophilic extracts showed significantly higher phenolic content and free radical scavenging activity than any lipophilic extract .
The results of this study indicated that the activity of purple rice bran hydrophilic antioxidants was much greater than that of its lipophilic antioxidants and anthocyanins and gamma-tocols largely located in the inner portion of purple rice bran .
| Matching Sentences:
[ Sen. 5, subscore: 1.00 ]: The lipophilic extract from the outer bran fraction ( OBF ) exhibited a lower level of total tocols and gamma-tocols , compared with the inner bran fraction ( IBF ) , while the levels of gamma-oryzanol in both fractions were not different .
[ Sen. 6, subscore: 1.00 ]: However , the lipophilic phenolic content and free radial scavenging activity of the OBF were 6 . 0 microg catechin equivalent ( CE ) /g and 5 . 6 micromol trolox equivalent ( TE ) /g and higher than those of the IBF , respectively .
[ Sen. 7, subscore: 1.00 ]: For the hydrophilic extracts , the level of anthocyanins in the IBF ( 29 . 0 mg/g ) was 8 times higher than that in the OBF .
[ Sen. 8, subscore: 1.00 ]: Also , the hydrophilic phenolic content and free radical scavenging activity of the IBF were 489 . 1 microg CE/g and 433 . 6 micromol TE/g , respectively , while they were 113 . 9 microg CE/g and 78 . 2 micromol TE/g in the OBF .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
Score: 1.00 |
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| Title: A novel gene IBF1 is required for the inhibition of brown pigment deposition in rice hull furrows .
| | Author: Shao T Qian Q Tang D Chen J Li M Cheng Z Luo Q | | Journal: Theor Appl Genet Citation: V : 125 P : 381-90 Year: 2012 Type: In-Process | | Literature: oryza Field: title Doc ID: pub22419106 Accession (PMID): 22419106 | | Abstract: The role of flavonoids as the major red , blue , purple and brown pigments in plants has gained these secondary products a great deal of attention over the years .
In this study , we characterized a rice inhibitor for brown furrows1 ( ibf1 ) mutant .
In the ibf1 mutant , brown pigments specifically accumulate in hull furrows during seed maturation and reach a maximum level in dry seeds .
Higher amounts of total flavonoids and anthocyanin in hull may be responsible for the brown pigmentation of ibf1 .
The IBF1 gene , which encodes a similar kelch repeat-containing F-box protein , was isolated by map-based cloning approach .
Real-time RT-PCR and GUS activity assays revealed that IBF1 specifically expressed in reproductive it issues .
GFP-IBF1 fusion protein mainly localized in cytoplasm .
The expression of some major structural enzymatic genes involved in flavonoids biosynthesis could be up or down-regulated to some different extent in ibf1 mutant .
Our data suggested that IBF1 as a suppressor could inhibit the brown pigmentation of rice hull furrows .
| Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: A novel gene IBF1 is required for the inhibition of brown pigment deposition in rice hull furrows .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
