Cellulose synthases and related enzymes

Saxena, Inder M.; Brown, R. Malcolm

doi:10.1016/s1369-5266(00)00125-4

Cited by 69 publications

(56 citation statements)

References 46 publications

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“…In fiber elongation, fiber elongated and primary cell wall formed. In the secondary wall deposition, a thick secondary cell wall composed of almost pure cellulose by partitioning about 80% of available carbon into cellulose were synthesized (Haigler et al, 2001;Salnikov et al, 2003), and the characteristic of cellulose accumulation determined the quality of fiber secondary wall (Saxena and Brown, 2000;Williamson et al, 2002). Substantial quantities of β-1, 3-glucan (callose) also contained in fiber cell wall during this period (Scheible and Pauly, 2004).…”

Section: Introductionmentioning

confidence: 99%

Sowing date and boll position affected boll weight, fiber quality and fiber physiological parameters in two cotton (Gossypium Hirsutum L.) cultivars

Zhao¹,

Wang²,

Shu³

et al. 2012

Afr. J. Agric. Res.

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To study the effects of sowing date and boll position on fiber quality and the physiological mechanism, field experiments were conducted using two cotton cultivars (Kemian 1 and Sumian 15) with two sowing dates (normal sowing date 25 April, and late sowing date 25 May) at Nanjing (118°50′E, 32°02′N), Jiangsu, China, in 2006 and 2007. Cotton bolls were divided into three parts (low, middle and upper) according to the fruiting branch symbodial positions. Boll weight, fiber quality (bundle strength, span lengths, micronaire), and fiber physiological parameters (cellulose content, callose content, and sucrose transformation rate) were detected, respectively. Boll weight and fiber strength were affected by sowing date, boll position, and sowing date × boll position. Comparing to the normal sowing date, late sowing date declined boll weight, fiber strength, cellulose content, and sucrose transformation rate. The cellulose content and sucrose transformation rate changed with boll position, and consequently resulted in the change of boll weight and fiber strength. In normal sowing date, cotton boll in middle positional sympodial branch had the highest cellulose content, sucrose transformation rate, boll weight, and fiber strength. In late sowing date, cotton boll in low positional sympodial branch had the highest cellulose content, boll weight and fiber quality. The results indicated that the change of fiber yield and quality in sowing dates and boll positions were because the synthesis of cellulose, callose and sucrose were changed. Increasing the cellulose content and sucrose transformation rate can improve yield and fiber quality in late sowing date or sub-optimal environmental conditions.

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Section: Introductionmentioning

confidence: 99%

Sowing date and boll position affected boll weight, fiber quality and fiber physiological parameters in two cotton (Gossypium Hirsutum L.) cultivars

Zhao¹,

Wang²,

Shu³

et al. 2012

Afr. J. Agric. Res.

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“…Furthermore, UDPG can be transported to the cellulose synthase catalytic subunit and is mainly used for the biosynthesis of cellulose [9]. β-1,3-glucanase can degrade β-1,3-dextran and transport sugar molecules to the nonreducing end of cellulose to synthesize fibrilla [10]. In addition, cellulose synthase can catalyze UDPG to form β-1,4-glucose polymers (cellulose); GhCelA1 and GhCelA2 are two key genes involved in the process of cellulose biosynthesis [11].…”

Section: Digital Signaturementioning

confidence: 99%

Effects of light on in vitro fiber development and flavonoid biosynthesis in green cotton (Gossypium hirsutum)

et al. 2016

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As an environmental factor, light influences the physiological functions and secondary metabolism of plants. However, the role of light in cotton fiber development and pigment biosynthesis has not yet been thoroughly explored. In this study, ovules of green cotton were cultured in vitro under dark and light conditions, and fiber and ovule growth parameters as well as fiber carbohydrate and cellulose contents and the expression of genes related to fiber development were investigated to elucidate the effect of light on fiber development. In addition, to investigate the effect of light on fiber pigment biosynthesis, the fiber flavonoid content and related gene expression were determined. The results demonstrated that the fiber length and the expression levels of fiber elongation genes under light culture were significantly lower than under dark culture, however, the ovule and fiber weight were significantly higher than under dark culture. The fiber developed under light culture had higher carbohydrate concentrations and carbohydrate transformation rate than under dark culture. Additionally, light culture exhibited higher cellulose contents and expression levels of cellulose biosynthesis genes compared with dark culture. In contrast, the pattern of the effect of light on flavonoid biosynthesis differed from that for cellulose biosynthesis. At 10 DAC (days after culture) and 20 DAC, the flavonoid contents and the expression levels of genes related to flavonoid biosynthesis were lower than under dark culture. However, the flavonoid contents and gene expression levels observed at 30 DAC and 40 DAC were higher in the light culture than in the dark culture. These results suggested that light hindered fiber elongation, but promoted carbohydrate accumulation and carbohydrate transformation, which resulted in fiber weight gain and increased cellulose accumulation in fibers. In addition, light inhibited flavonoid biosynthesis at early stage of fiber development, but promoted it at later stages. These findings provide the basis for intensive study of fiber development and flavonoids biosynthesis in green cotton.

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“…During the fibre secondary wall thickening stages, large amounts of non-cellulosic material, namely β-1,3-dextran, are produced in the inner cell wall of the fibre 11 . β-1,3-glucanase can hydrolyse the covalent bond of β-1,3-dextran and transport sugar molecules to the non-reduction end of cellulose, which can promote the synthesis of fibrilla 12 . In addition, indoleacetic acid oxidase (IAAO) and peroxidase (POD) are two important enzymes related to cellulose accumulation in cotton fibre.…”

Section: Introductionmentioning

confidence: 99%

Cellulose synthesis in coloured cotton

Senhe¹,

Hong²,

Xu³

et al. 2015

ScienceAsia

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Using green, brown, and white cotton as materials, the contents of cellulose, carbohydrates, and flavonoid compounds as well as enzyme activities related to cellulose synthesis were investigated at various stages of fibre development to elucidate the characteristics of cellulose synthesis. The results showed that cellulose contents in all three cotton fibres showed 'S-shaped curve' changing patterns. According to a logistic growth model, the lower maximum accumulative rate of cellulose in the coloured cotton indicated less cellulose accumulation during fibre development. No significant differences in the carbohydrate content and carbohydrate transformation rates were observed between coloured and white cotton fibre. However, the flavonoid content in coloured cotton fibres was significantly higher than white cotton, and the flavonoid biosynthesis in coloured cotton fibres consumed a large amount of carbohydrates which should normally be used for cellulose synthesis. Low indoleacetic acid oxidase and peroxidase activities lowered cellulose accumulation in coloured cotton fibres. High activities of sucrose synthetase and β-1,3-glucanase in coloured cotton fibres may promote efficient utilization of carbohydrates. However, carbohydrate metabolism in the coloured cotton fibre should not only be responsible for cellulose biosynthesis but also for flavonoid biosynthesis.

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Cellulose synthases and related enzymes

Cited by 69 publications

References 46 publications

Sowing date and boll position affected boll weight, fiber quality and fiber physiological parameters in two cotton (Gossypium Hirsutum L.) cultivars

Sowing date and boll position affected boll weight, fiber quality and fiber physiological parameters in two cotton (Gossypium Hirsutum L.) cultivars

Effects of light on in vitro fiber development and flavonoid biosynthesis in green cotton (Gossypium hirsutum)

Cellulose synthesis in coloured cotton

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