Genetic linkage relationship of the natural colored fiber and six fuzzless seed germplasms in obso-lete backgro unds of Gossypium hirsutum(AD genome)and G.barba dense were analyzed in the past two years.Three lines of...Genetic linkage relationship of the natural colored fiber and six fuzzless seed germplasms in obso-lete backgro unds of Gossypium hirsutum(AD genome)and G.barba dense were analyzed in the past two years.Three lines of natural brown fiber that were controlled by single dominant genes and two lines of green fiber controlled by another single dominant gene.One line of natural brown fiber was controlled by a major dominant gene or Quantitative Trait Locus(QTLs).Genetic analysis showed the six fuzzless line s were controlled by a recessive gene,temporally named n3.展开更多
Using naturally colored cotton(NCC)can eliminate dyeing,printing and industrial processing,and reduce sewage discharge and energy consumption.Proanthocyanidins(PAs),the primary coloration components in brown fibers,ar...Using naturally colored cotton(NCC)can eliminate dyeing,printing and industrial processing,and reduce sewage discharge and energy consumption.Proanthocyanidins(PAs),the primary coloration components in brown fibers,are polyphenols formed by oligomers or polymers of flavan-3-ol units derived from anthocyanidins.Three essential structural genes for flavanone and flavonoid hydroxylation encoding flavanone-3-hydroxylase(F3H),flavonoid 3’-hydroxylase(F3’H)and flavonoid 3’5’-hydroxylase(F3’5’H)are initially committed in the flavonoid biosynthesis pathway to produce common precursors.The three genes were all expressed predominantly in developing fibers of NCCs,and their expression patterns varied temporally and spatially among NCC varieties.In GhF3Hi,GhF3’Hi and GhF3’5’Hi silenced lines of NCC varieties XC20 and ZX1,the expression level of the three genes decreased in developing cotton fiber,negatively correlated with anthocyanidin content and fiber color depth.Fiber color depth and type in RNAi lines changed with endogenous gene silencing efficiency and expression pattern,the three hydroxylase genes functioned in fiber color formation.GhF3H showed functional differentiation among NCC varieties and GhF3’H acted in the accumulation of anthocyanin in fiber.Compared with GhF3’H,GhF3’5’H was expressed more highly in brown fiber with a longer duration of expression and caused lighter color of fibers in GhF3’5’H silenced lines.These three genes regulating fiber color depth and type could be used to improve these traits by genetic manipulation.展开更多
We investigated the steady state gamma-ray radiation response of pure-silica-core photonic crystal fibers（PSC-PCFs）under an accumulated dose of 500 Gy and a dose rate of 2.38 Gy/min. The radiation-induced attenuatio...We investigated the steady state gamma-ray radiation response of pure-silica-core photonic crystal fibers（PSC-PCFs）under an accumulated dose of 500 Gy and a dose rate of 2.38 Gy/min. The radiation-induced attenuation（RIA） spectra in the near-infrared region from 800 nm to 1700 nm were obtained. We find that the RIA at 1550 nm is related with hydroxyl（OH^-） absorption defects in addition to the identified self-trapped hole（STH） defects. Moreover, it is proposed and demonstrated that reduced OH^-absorption defects can decrease the RIA at 1550 nm. The RIA at 1550 nm has effectively declined from 27.7 d B/km to 3.0 dB/km through fabrication improvement. Preliminary explanations based on the unique fabrication processes were given to interpret the RIA characteristics of PSC-PCFs. The results show that the PSC-PCFs,which offer great advantages over conventional fibers, are promising and applicable to fiber sensors in harsh environments.展开更多
Carbon-based fiber materials are widely used in aerospace,military,and electronics owing to their outstanding comprehensive properties.However,the high degree of crystallization and chemical inertness of their surface...Carbon-based fiber materials are widely used in aerospace,military,and electronics owing to their outstanding comprehensive properties.However,the high degree of crystallization and chemical inertness of their surfaces impede the coloring of such materials by traditional dyeing methods,thereby limiting their application in a broader field.Exploring advanced micro/nano-processing technology for colored carbon-based fiber materials has become a growing interdisciplinary research area in recent years.Therefore,this review comprehensively discusses the structure‒color‒function relationships of carbon-based fiber materials.The structure of carbon-based fiber materials and their properties responsible for challenges in coloring by traditional dyeing methods are discussed.Moreover,the color-generating mechanisms underlying the display of structural colors by living organisms due to fundamental optical phenomena,including thin/multilayer-film interference,diffraction grating,scattering,and photonic crystals,are described.Furthermore,recent progress in bio-inspirated colored carbon-based fiber materials prepared via advanced micro/nanoscale manufacturing strategies is reviewed.In addition,emerging applications of colored carbon-based fiber materials in various fields are presented.Finally,the possible challenges and future directions for the design,large-scale production,and application of colored carbon-based fibermaterials and their composites are discussed,aiming to promote the material design of innovative next-generation systems and research in the advanced material and related engineering fields.展开更多
文摘Genetic linkage relationship of the natural colored fiber and six fuzzless seed germplasms in obso-lete backgro unds of Gossypium hirsutum(AD genome)and G.barba dense were analyzed in the past two years.Three lines of natural brown fiber that were controlled by single dominant genes and two lines of green fiber controlled by another single dominant gene.One line of natural brown fiber was controlled by a major dominant gene or Quantitative Trait Locus(QTLs).Genetic analysis showed the six fuzzless line s were controlled by a recessive gene,temporally named n3.
基金supported by the Natural Science Foundation of Zhejiang Province(LZ21C130004)the National Natural Science Foundation of China(U1903204)he Fundamental Research Funds of Shaoxing Keqiao Research Institute of Zhejiang Sci-Tech University(KYY2021004S)。
文摘Using naturally colored cotton(NCC)can eliminate dyeing,printing and industrial processing,and reduce sewage discharge and energy consumption.Proanthocyanidins(PAs),the primary coloration components in brown fibers,are polyphenols formed by oligomers or polymers of flavan-3-ol units derived from anthocyanidins.Three essential structural genes for flavanone and flavonoid hydroxylation encoding flavanone-3-hydroxylase(F3H),flavonoid 3’-hydroxylase(F3’H)and flavonoid 3’5’-hydroxylase(F3’5’H)are initially committed in the flavonoid biosynthesis pathway to produce common precursors.The three genes were all expressed predominantly in developing fibers of NCCs,and their expression patterns varied temporally and spatially among NCC varieties.In GhF3Hi,GhF3’Hi and GhF3’5’Hi silenced lines of NCC varieties XC20 and ZX1,the expression level of the three genes decreased in developing cotton fiber,negatively correlated with anthocyanidin content and fiber color depth.Fiber color depth and type in RNAi lines changed with endogenous gene silencing efficiency and expression pattern,the three hydroxylase genes functioned in fiber color formation.GhF3H showed functional differentiation among NCC varieties and GhF3’H acted in the accumulation of anthocyanin in fiber.Compared with GhF3’H,GhF3’5’H was expressed more highly in brown fiber with a longer duration of expression and caused lighter color of fibers in GhF3’5’H silenced lines.These three genes regulating fiber color depth and type could be used to improve these traits by genetic manipulation.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61575012 and 61575013)the National Key Scientific Instrument and Equipment Development Project,China(Grant No.2013YQ040877)
文摘We investigated the steady state gamma-ray radiation response of pure-silica-core photonic crystal fibers（PSC-PCFs）under an accumulated dose of 500 Gy and a dose rate of 2.38 Gy/min. The radiation-induced attenuation（RIA） spectra in the near-infrared region from 800 nm to 1700 nm were obtained. We find that the RIA at 1550 nm is related with hydroxyl（OH^-） absorption defects in addition to the identified self-trapped hole（STH） defects. Moreover, it is proposed and demonstrated that reduced OH^-absorption defects can decrease the RIA at 1550 nm. The RIA at 1550 nm has effectively declined from 27.7 d B/km to 3.0 dB/km through fabrication improvement. Preliminary explanations based on the unique fabrication processes were given to interpret the RIA characteristics of PSC-PCFs. The results show that the PSC-PCFs,which offer great advantages over conventional fibers, are promising and applicable to fiber sensors in harsh environments.
基金National Natural Science Foundation of China,Grant/Award Number:52373085Natural Science Foundation of Hubei Province,Grant/Award Number:2023AFB828+2 种基金Innovative Team Program of Natural Science Foundation of Hubei Province,Grant/Award Number:2023AFA027Open Fund for Hubei Key Laboratory of Digital Textile Equipment,Grant/Award Number:DTL 2023022Open Fund for National Local Joint Laboratory for Advanced Textile Processing and Clean Production,Grant/Award Number:17。
文摘Carbon-based fiber materials are widely used in aerospace,military,and electronics owing to their outstanding comprehensive properties.However,the high degree of crystallization and chemical inertness of their surfaces impede the coloring of such materials by traditional dyeing methods,thereby limiting their application in a broader field.Exploring advanced micro/nano-processing technology for colored carbon-based fiber materials has become a growing interdisciplinary research area in recent years.Therefore,this review comprehensively discusses the structure‒color‒function relationships of carbon-based fiber materials.The structure of carbon-based fiber materials and their properties responsible for challenges in coloring by traditional dyeing methods are discussed.Moreover,the color-generating mechanisms underlying the display of structural colors by living organisms due to fundamental optical phenomena,including thin/multilayer-film interference,diffraction grating,scattering,and photonic crystals,are described.Furthermore,recent progress in bio-inspirated colored carbon-based fiber materials prepared via advanced micro/nanoscale manufacturing strategies is reviewed.In addition,emerging applications of colored carbon-based fiber materials in various fields are presented.Finally,the possible challenges and future directions for the design,large-scale production,and application of colored carbon-based fibermaterials and their composites are discussed,aiming to promote the material design of innovative next-generation systems and research in the advanced material and related engineering fields.
