The accumulation of pigment in fiber related to proanthocyanidins synthesis for brown cotton

Li, Tingchun; Fan, Honghong; Li, Zhengpeng; Wei, Jun; Lin, Yi; Cai, Yongping

doi:10.1007/s11738-011-0858-x

Cited by 29 publications

(35 citation statements)

References 14 publications

(25 reference statements)

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“…Previous studies demonstrated that the transcription of flavonoid genes and PA was more abundant in brown fiber than in white fiber Li et al, 2011). Our further analysis indicated that the other flavonoids were also abundant in brown fiber (Supplemental Table S3).…”

Section: F3h Is More Important To Brown Fiber Development Than It Is supporting

confidence: 52%

A Genetic and Metabolic Analysis Revealed that Cotton Fiber Cell Development Was Retarded by Flavonoid Naringenin

et al. 2013

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The cotton (Gossypium spp.) fiber is a unique elongated cell that is useful for investigating cell differentiation. Previous studies have demonstrated the importance of factors such as sugar metabolism, the cytoskeleton, and hormones, which are commonly known to be involved in plant cell development, while the secondary metabolites have been less regarded. By mining public data and comparing analyses of fiber from two cotton species (Gossypium hirsutum and Gossypium barbadense), we found that the flavonoid metabolism is active in early fiber cell development. Different flavonoids exhibited distinct effects on fiber development during ovule culture; among them, naringenin (NAR) could significantly retard fiber development. NAR is a substrate of flavanone 3-hydroxylase (F3H), and silencing the F3H gene significantly increased the NAR content of fiber cells. Fiber development was suppressed following F3H silencing, but the overexpression of F3H caused no obvious effects. Significant retardation of fiber growth was observed after the introduction of the F3H-RNA interference segment into the high-flavonoid brown fiber G. hirsutum T586 line by cross. A greater accumulation of NAR as well as much shorter fibers were also observed in the BC1 generation plants. These results suggest that NAR is negatively associated with fiber development and that the metabolism mediated by F3H is important in fiber development, thus highlighting that flavonoid metabolism represents a novel pathway with the potential for cotton fiber improvement.

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Section: F3h Is More Important To Brown Fiber Development Than It Is supporting

confidence: 52%

A Genetic and Metabolic Analysis Revealed that Cotton Fiber Cell Development Was Retarded by Flavonoid Naringenin

et al. 2013

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“…Manuscript to be reviewed of PAs in the fibers of brown cotton at different developmental stages ( Figure 6). The determination of PAs showed that both soluble and insoluble PAs had mainly accumulated before DAF, after which its content gradually decreased; these results were consistent with the previously reported results (Li et al, 2012). Interestingly, GhPKS4, 5, 9, 11 had a higher level of transcription at the early stages of cotton fiber development; the amount of expression then decreased gradually, which is consistent with the rule of accumulation of PAs in brown cotton fibers.…”

Section: Expression Characteristics Of the Pks Gene In Upland Cottonsupporting

confidence: 91%

Peer Review #2 of "Comparative genomic analysis of the PKS genes in five species and expression analysis in upland cotton (v0.1)"

Suhail¹

2017

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Plant type III polyketide synthase (PKS) can catalyse the formation of a series of secondary metabolites with different structures and different biological functions; the enzyme plays an important role in plant growth, development and resistance to stress. At present, the PKS gene has been identified and studied in a variety of plants. Here, we identified 11 PKS genes from upland cotton (Gossypium hirsutum) and compared them with 41 PKS genes in Populus tremula, Vitis vinifera, Malus domestica and Arabidopsis thaliana. According to the phylogenetic tree, a total of 52 PKS genes can be divided into four subfamilies (I-IV). The analysis of gene structures and conserved motifs revealed that most of the PKS genes were composed of two exons and one intron and there are two characteristic conserved domains (Chal_sti_synt_N and Chal_sti_synt_C) of the PKS gene family. In our study of the five species, gene duplication was found in addition to Arabidopsis thaliana. And we determined that purifying selection has been of great significance in maintaining the function of PKS gene family. From qRT-PCR analysis and a combination of the role of the accumulation of proanthocyanidins (PAs) in brown cotton fibers, we concluded that five PKS genes are candidate genes involved in brown cotton fiber pigment synthesis. These results are important for the further study of brown cotton PKS genes. It not only reveals the relationship between PKS gene family and pigment in brown cotton, but also creates conditions for improving the quality of brown cotton fiber.

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“…Tannins are complex, poly-phenol, and amorphous compounds that are present in plants. Histochemical staining and colorimetric reactions of developing and mature cotton fibers showed that condensed tannins are responsible for the color of brown cotton fiber (Hua et al 2007;Li et al 2012;Xiao et al 2007). Consistently, the intensity of the characteristic peaks of condensed tannins was diminished for the SA-1 fiber with a lighter brown shade.…”

Section: Resultsmentioning

confidence: 99%

High resistance to thermal decomposition in brown cotton is linked to tannins and sodium content

et al. 2016

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Brown cotton fibers (SA-1 and MC-BL) studied were inferior to a white cotton fiber (SureGrow 747) in fiber quality, i.e., a shorter length, fewer twists, and lower crystallinity, but showed superior thermal resistance in thermogravimetric, differential thermogravimetric, and microscale combustion calorimetric (MCC) analyses. Brown cotton fibers yielded 11-23 % smaller total heat release and 20-40 % greater char. Washing fibers in water and a 1 % NaOH solution showed that rich natural inorganic components and the condensed tannins present in brown cotton are responsible for the unusual thermal property. The loss of inorganics from white cotton during a water wash increased the thermal decomposition temperature of cellulose, resulting in no char yield.However, the stronger binding of metal ions for brown cotton as well as its dominant adsorption of sodium ions after a 1 % NaOH wash facilitated the lowtemperature thermal-reaction route; the sodium content showed a significant negative correlation with the heat release capacity of the fiber. Condensed tannins greatly enhanced the adsorption of sodium ions to the fiber and exhibited inherent thermal stability. The limiting oxygen indices (LOI) calculated from the MCC parameters indicated the slower burning characteristic of brown cotton, and its LOI was further increased upon adsorption of sodium ions.

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The accumulation of pigment in fiber related to proanthocyanidins synthesis for brown cotton

Cited by 29 publications

References 14 publications

A Genetic and Metabolic Analysis Revealed that Cotton Fiber Cell Development Was Retarded by Flavonoid Naringenin

A Genetic and Metabolic Analysis Revealed that Cotton Fiber Cell Development Was Retarded by Flavonoid Naringenin

Peer Review #2 of "Comparative genomic analysis of the PKS genes in five species and expression analysis in upland cotton (v0.1)"

High resistance to thermal decomposition in brown cotton is linked to tannins and sodium content

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