The pollen grain morphology and leaf epiderm shape and microstructural of Rye( Secale cereal ), common wheat and Octoploid Trititrigia were observed with the scanning electron microscope(SEM). The results revealed...The pollen grain morphology and leaf epiderm shape and microstructural of Rye( Secale cereal ), common wheat and Octoploid Trititrigia were observed with the scanning electron microscope(SEM). The results revealed that there were great differences between pollen and leaf epiderm microcosmic morphology in three species. Such characteristics of Octoploid tnticalwere between those of common wheat and Rye. The morphology of pollen grain and leaf epiderm shape counld be used as an index for taxonomy for genera and species, and had somewhat scientif- ic references to identify new multiploid species created by chromosome engineering.展开更多
The behavior of wheat-rye translocation chromosome and alien chromosome including Thinopyrum and Haynaldia chromosome at meiosis was investigated in two hybrids by fluorescence in situ hybridization (FISH). Misdivisio...The behavior of wheat-rye translocation chromosome and alien chromosome including Thinopyrum and Haynaldia chromosome at meiosis was investigated in two hybrids by fluorescence in situ hybridization (FISH). Misdivision of translocation chromosome at anaphase I and rye chromatin micronucleus at tetrad stage were observed, A plant with one normal 1BL/1RS translocation chromosome and one 1BL/1RS translocation chromosome deleted about 1/3 of rye chromosome arm in length was identified. One plant with wheat-Thinopyrum non-Robertson translocation chromosome was also detected in the F-2 population of Yi4212 x Yi4095. That could be the results of unequal misdivision of wheat-rye 1BL/1RS translocation chromosome and Thinopyrum chromosome during meiosis. No interaction between translocation chromosome and alien chromosome at meiosis was supported by the data of the distribution frequencies of translocation chromosome and Thinopyrum or Haynaldia chromosome in the progeny of two hybrids. The results may be useful to cultivate new germplasms with different length of rye 1R short arm and wheat-alien non-Robertson translocation tines under wheat background.展开更多
The genomic composition of 1911289, a wheat ( Tritium aestivum L.) maintainer of K-CMS, was examined by several methods, such as genomic in situ hybridization (GISH), biochemical marking, and DNA molecular marking. Th...The genomic composition of 1911289, a wheat ( Tritium aestivum L.) maintainer of K-CMS, was examined by several methods, such as genomic in situ hybridization (GISH), biochemical marking, and DNA molecular marking. The results got by GISH and PCR amplification of dispersed rye-specific repetitive DNA sequence suggested that the alien chromatin in T911289 derived from rye. Specifically PCR amplification of the rye-specific microsatellite primers (SCM9) and seed storage protein analysis indicated that the alien chromatin in T911289 had developed from the short arm of 1R chromosome of rye (1RS). PCR amplification by using microsatellite primers locating on 1BS and seed storage protein analysis also revealed that 1911289 had lost the arm of 1BS or a small distal segment of it. We conclude that T911289 is a heterogeneous population which displays two distinct different types of translocation, i.e. the Robertsonian translocation and small segment translocation. The Robertsonian translocation type observed in our study is different from the 1BL/1RS translocation which is widely used in wheat production; it may be a novel and complex translocation form. Though the linkage between the desirable agronomic traits and the deleterious genes expressed as sticky dough has not got broken in T911289, the recovery of small segment translocation will still benefit the genetic study of wheat and rye.展开更多
In China,some species of Bupleurum (family Umbelliferae) have been used as Chinese traditional medicine under the name “Chai-Hu” for the treatment of fevers and influenza.In the present paper,the authors report a st...In China,some species of Bupleurum (family Umbelliferae) have been used as Chinese traditional medicine under the name “Chai-Hu” for the treatment of fevers and influenza.In the present paper,the authors report a study on the investigation and exploitation of new medicinal resources of “Chai-Hu” in Qinghai Province and Xizang (Tibet) Autonomous Region where no one has studied this hitherto.18 species,7 varieties,I form of Bupleurum and a new species (Bupleurum qinghaiense) have been discovered.The taxonomy and preliminary phytochemical studies of the roots of three medicinal plants,B.qinghaiense,B.rnarginatum var.stenophyllum and B.smithii var.parvifolium.are reported in this paper.展开更多
In this study, 13 strong-gluten wheat varieties screened by the Key Project of Modern Agricultural Industry Technology System "Study on Industrial Technology for Strong-gluten Wheat from Lime Concretion Black Soil Ar...In this study, 13 strong-gluten wheat varieties screened by the Key Project of Modern Agricultural Industry Technology System "Study on Industrial Technology for Strong-gluten Wheat from Lime Concretion Black Soil Area in the Huanghuai Wheat Region" were used as experimental materials to investigate their bread-making quality, noodle-making quality and other related characteristics. The results showed that more than half of the wheat varieties had better bread-making quality; the bread made from wheat with longer dough mixing time than 3.0 min had better texture, lighter color, and better taste. All these 13 strong-gluten wheat varieties showed good noodle-making quality in color, appearance, smoothness and taste; the differences between varieties were mainly found in palatability and viscoelasticity. Jimai 20, Xinong 979, Zhengmai 7698, Ji'nan 17 and Zhengmai 9023 exhibited excellent bread-making quality; Zhengmai 366, Jimai 20 and Xinong 979 displayed excellent noodle-making quality. Fresh dough sheets made from Zhengmai 366, Jimai 20 and Xinong 979 exhibited slight color variation within 24 h and high peak starch paste viscosity; dry and cooked noodles made from Zhengmai 366, Jimai 20 and Xinong 979 had good quality.展开更多
[Objective] This study was to find out the artificial diet formula for Erigoni- dium graminicolum (Sundevall) to realize its indoor artificial breeding. [Method] Using orthogonal decomposition method, the diet most ...[Objective] This study was to find out the artificial diet formula for Erigoni- dium graminicolum (Sundevall) to realize its indoor artificial breeding. [Method] Using orthogonal decomposition method, the diet most suitable for the normal and quick growth of Erigonidium graminicolum (sundevall), was developed by adding different species and different proportions of fresh insects to the artificial diet based on the formula of total nutrient solution proposed by Zhao Jing-zhao. [Result] The most suit- able formula for the development and growth of Erigonidium graminicolum (Sundevall) is 10 ml of egg white, 2 g of honey, 2 g of sucrose, 10 ml of water, 5 g of Ci- cadella viridis, moderate amount of cornmeal, compound vitamin B1 and vitamin C1. [Conclusion] The development of new type artificial diet can provide timely and nec- essary material premise for its large-scale indoor propagation.展开更多
[Objective]The aim was to study the inheritance property of the color of seed in black wheat.[Method]Segregation for seed coat colors was studied in F1,F2 and F3 population from eight crosses of four black-seed wheat ...[Objective]The aim was to study the inheritance property of the color of seed in black wheat.[Method]Segregation for seed coat colors was studied in F1,F2 and F3 population from eight crosses of four black-seed wheat cultivars(Heixiaomai76,Heixiaomai18,96-45 and S-1)with four white-seed wheat cultivars(9-231,Ningchun16,Ningchun17 and Xinchun22).[Result]The results showed that the color of Heixiaomai 76 maternal genetic traits is controlled by two incompletely dominant genes,the segregation in F3 populations fits 9(dark)∶7(white)ratio.Color of S-1,96-45,and Heixiaomai 18 is controlled by two Independent and complementary genetic genes,the segregation for black kernel color in F2 populations fits 9(dark)∶7(white)ratio.[Conclusion]Different kinds of new species can be breed through the hybrid of black wheat and white wheat varieties.展开更多
Twenty lactating cows of two to five parity having an average live weight of 290.00 to 330.00 kg and an average milk production of 4.54 kg/head/day to 4.66 kg/head/day were selected from the Central Cattle breeding St...Twenty lactating cows of two to five parity having an average live weight of 290.00 to 330.00 kg and an average milk production of 4.54 kg/head/day to 4.66 kg/head/day were selected from the Central Cattle breeding Station and Dairy Farm. The four dietary treatment were: SlooTo (Straw 100: Triticale 0 as control); $5oT5o (Straw 50: Triticale 50); $25T75 (Straw 25: Triticale 75) and SoTloo (Straw 0: Triticale 100). It was observed that the roughage dry matter intake (DMI) (2.61 ~ 0.07 kg) in percent live weight was significantly (P 〈 0.05) higher in $25T75 and the lowest (1.76 ~ 0.018 kg) in the control group (SlooTo) and the differences were significant among the dietary treatments except $5oT5o and SoTloo. The total DMI was significantly (P 〈 0.05) higher in SoT^oo (13.36 i 0.13 kg) followed by $25T75, $5oT5o and SlooTo, respectively. The digestibility of crude protein (CP) was slightly higher in $25T75 (75.48 ~ 0.96) compared to SoTtoo (75.31 ~ 1.45) and the difference was non-significant (P 〉 0.05). Milk production was significantly (P 〈 0.05) the highest in $5oT5o and the lowest in SlooTo followed by SoTloo, $25T75, respectively. The percent increased in milk yield was also the highest in $5oT5o (67.68%) and the lowest in SlooTo (28.85%). The 4% fat corrected milk was also significantly (P 〈 0.05) higher in $5oT5o followed by SoTloo, $25T75 and SlooTo, respectively. Therefore, it can be concluded that triticale and straw at a ratio of 50:50 may be fed for better production performance of dairy cows.展开更多
Deposition of pigment in the intestinal mucosa is commonly observed by the endoscopist, especially within the colon, and particularly during investigations for constipation. Pigment may also be detected in the small i...Deposition of pigment in the intestinal mucosa is commonly observed by the endoscopist, especially within the colon, and particularly during investigations for constipation. Pigment may also be detected in the small intestine. Although labeled as melanosis, electron microscopy and X-ray analytical methods have provided evidence that this pigment is not melanin at all, but lipofuscin. Often, herbal remedies or anthracene containing laxatives are often historically implicated, and experimental studies in both humans and animal models have also confirmed the intimate relationship with these pharmacological or pseudo-pharmacological remedies. The appearance of melanosis coli during colonoscopy is largely due to pigment granule deposition in macrophages located in the colonic mucosa. The pigment intensity is not uniform, being more intense in the cecum and proximal colon compared to the distal colon. Possibly, this reflects higher luminal concentrations of an offending agent in the proximal compared to distal colon, differential absorption along the length of the colon, or finally, differences in macrophage distribution within the colon. Mucosal lymphoid aggregates normally display a distinct absence of pigment producing a "starry sky" appearance, especially in the rectosigmoid region. Interestingly, some focal, usually sessile, colonic mucosal neoplastic lesions, rather than submucosal lesions, may be better appreciated as pigment deposition may be absent or limited. If detected, removal and further histopathologic analysis of the polyp may be facilitated.展开更多
文摘The pollen grain morphology and leaf epiderm shape and microstructural of Rye( Secale cereal ), common wheat and Octoploid Trititrigia were observed with the scanning electron microscope(SEM). The results revealed that there were great differences between pollen and leaf epiderm microcosmic morphology in three species. Such characteristics of Octoploid tnticalwere between those of common wheat and Rye. The morphology of pollen grain and leaf epiderm shape counld be used as an index for taxonomy for genera and species, and had somewhat scientif- ic references to identify new multiploid species created by chromosome engineering.
文摘The behavior of wheat-rye translocation chromosome and alien chromosome including Thinopyrum and Haynaldia chromosome at meiosis was investigated in two hybrids by fluorescence in situ hybridization (FISH). Misdivision of translocation chromosome at anaphase I and rye chromatin micronucleus at tetrad stage were observed, A plant with one normal 1BL/1RS translocation chromosome and one 1BL/1RS translocation chromosome deleted about 1/3 of rye chromosome arm in length was identified. One plant with wheat-Thinopyrum non-Robertson translocation chromosome was also detected in the F-2 population of Yi4212 x Yi4095. That could be the results of unequal misdivision of wheat-rye 1BL/1RS translocation chromosome and Thinopyrum chromosome during meiosis. No interaction between translocation chromosome and alien chromosome at meiosis was supported by the data of the distribution frequencies of translocation chromosome and Thinopyrum or Haynaldia chromosome in the progeny of two hybrids. The results may be useful to cultivate new germplasms with different length of rye 1R short arm and wheat-alien non-Robertson translocation tines under wheat background.
文摘The genomic composition of 1911289, a wheat ( Tritium aestivum L.) maintainer of K-CMS, was examined by several methods, such as genomic in situ hybridization (GISH), biochemical marking, and DNA molecular marking. The results got by GISH and PCR amplification of dispersed rye-specific repetitive DNA sequence suggested that the alien chromatin in T911289 derived from rye. Specifically PCR amplification of the rye-specific microsatellite primers (SCM9) and seed storage protein analysis indicated that the alien chromatin in T911289 had developed from the short arm of 1R chromosome of rye (1RS). PCR amplification by using microsatellite primers locating on 1BS and seed storage protein analysis also revealed that 1911289 had lost the arm of 1BS or a small distal segment of it. We conclude that T911289 is a heterogeneous population which displays two distinct different types of translocation, i.e. the Robertsonian translocation and small segment translocation. The Robertsonian translocation type observed in our study is different from the 1BL/1RS translocation which is widely used in wheat production; it may be a novel and complex translocation form. Though the linkage between the desirable agronomic traits and the deleterious genes expressed as sticky dough has not got broken in T911289, the recovery of small segment translocation will still benefit the genetic study of wheat and rye.
文摘In China,some species of Bupleurum (family Umbelliferae) have been used as Chinese traditional medicine under the name “Chai-Hu” for the treatment of fevers and influenza.In the present paper,the authors report a study on the investigation and exploitation of new medicinal resources of “Chai-Hu” in Qinghai Province and Xizang (Tibet) Autonomous Region where no one has studied this hitherto.18 species,7 varieties,I form of Bupleurum and a new species (Bupleurum qinghaiense) have been discovered.The taxonomy and preliminary phytochemical studies of the roots of three medicinal plants,B.qinghaiense,B.rnarginatum var.stenophyllum and B.smithii var.parvifolium.are reported in this paper.
基金Supported by Earmarked Fund for Modern Agro-industry Technology Research System(CARS-03)Special Fund for Seed Industry Construction from Taishan Scholar FoundationNational Science and Technology Major Project for Genetic Improvement of Crop Quality~~
文摘In this study, 13 strong-gluten wheat varieties screened by the Key Project of Modern Agricultural Industry Technology System "Study on Industrial Technology for Strong-gluten Wheat from Lime Concretion Black Soil Area in the Huanghuai Wheat Region" were used as experimental materials to investigate their bread-making quality, noodle-making quality and other related characteristics. The results showed that more than half of the wheat varieties had better bread-making quality; the bread made from wheat with longer dough mixing time than 3.0 min had better texture, lighter color, and better taste. All these 13 strong-gluten wheat varieties showed good noodle-making quality in color, appearance, smoothness and taste; the differences between varieties were mainly found in palatability and viscoelasticity. Jimai 20, Xinong 979, Zhengmai 7698, Ji'nan 17 and Zhengmai 9023 exhibited excellent bread-making quality; Zhengmai 366, Jimai 20 and Xinong 979 displayed excellent noodle-making quality. Fresh dough sheets made from Zhengmai 366, Jimai 20 and Xinong 979 exhibited slight color variation within 24 h and high peak starch paste viscosity; dry and cooked noodles made from Zhengmai 366, Jimai 20 and Xinong 979 had good quality.
文摘[Objective] This study was to find out the artificial diet formula for Erigoni- dium graminicolum (Sundevall) to realize its indoor artificial breeding. [Method] Using orthogonal decomposition method, the diet most suitable for the normal and quick growth of Erigonidium graminicolum (sundevall), was developed by adding different species and different proportions of fresh insects to the artificial diet based on the formula of total nutrient solution proposed by Zhao Jing-zhao. [Result] The most suit- able formula for the development and growth of Erigonidium graminicolum (Sundevall) is 10 ml of egg white, 2 g of honey, 2 g of sucrose, 10 ml of water, 5 g of Ci- cadella viridis, moderate amount of cornmeal, compound vitamin B1 and vitamin C1. [Conclusion] The development of new type artificial diet can provide timely and nec- essary material premise for its large-scale indoor propagation.
基金Supported by the "Eleventh-Five"Breeding Critical Program of Xin-jiang Production and Construction Corps(2006GG04)Science and Technology Start-up Fund of Higher Layer Personnel of Shihezi University(RCZX200720)~~
文摘[Objective]The aim was to study the inheritance property of the color of seed in black wheat.[Method]Segregation for seed coat colors was studied in F1,F2 and F3 population from eight crosses of four black-seed wheat cultivars(Heixiaomai76,Heixiaomai18,96-45 and S-1)with four white-seed wheat cultivars(9-231,Ningchun16,Ningchun17 and Xinchun22).[Result]The results showed that the color of Heixiaomai 76 maternal genetic traits is controlled by two incompletely dominant genes,the segregation in F3 populations fits 9(dark)∶7(white)ratio.Color of S-1,96-45,and Heixiaomai 18 is controlled by two Independent and complementary genetic genes,the segregation for black kernel color in F2 populations fits 9(dark)∶7(white)ratio.[Conclusion]Different kinds of new species can be breed through the hybrid of black wheat and white wheat varieties.
文摘Twenty lactating cows of two to five parity having an average live weight of 290.00 to 330.00 kg and an average milk production of 4.54 kg/head/day to 4.66 kg/head/day were selected from the Central Cattle breeding Station and Dairy Farm. The four dietary treatment were: SlooTo (Straw 100: Triticale 0 as control); $5oT5o (Straw 50: Triticale 50); $25T75 (Straw 25: Triticale 75) and SoTloo (Straw 0: Triticale 100). It was observed that the roughage dry matter intake (DMI) (2.61 ~ 0.07 kg) in percent live weight was significantly (P 〈 0.05) higher in $25T75 and the lowest (1.76 ~ 0.018 kg) in the control group (SlooTo) and the differences were significant among the dietary treatments except $5oT5o and SoTloo. The total DMI was significantly (P 〈 0.05) higher in SoT^oo (13.36 i 0.13 kg) followed by $25T75, $5oT5o and SlooTo, respectively. The digestibility of crude protein (CP) was slightly higher in $25T75 (75.48 ~ 0.96) compared to SoTtoo (75.31 ~ 1.45) and the difference was non-significant (P 〉 0.05). Milk production was significantly (P 〈 0.05) the highest in $5oT5o and the lowest in SlooTo followed by SoTloo, $25T75, respectively. The percent increased in milk yield was also the highest in $5oT5o (67.68%) and the lowest in SlooTo (28.85%). The 4% fat corrected milk was also significantly (P 〈 0.05) higher in $5oT5o followed by SoTloo, $25T75 and SlooTo, respectively. Therefore, it can be concluded that triticale and straw at a ratio of 50:50 may be fed for better production performance of dairy cows.
文摘Deposition of pigment in the intestinal mucosa is commonly observed by the endoscopist, especially within the colon, and particularly during investigations for constipation. Pigment may also be detected in the small intestine. Although labeled as melanosis, electron microscopy and X-ray analytical methods have provided evidence that this pigment is not melanin at all, but lipofuscin. Often, herbal remedies or anthracene containing laxatives are often historically implicated, and experimental studies in both humans and animal models have also confirmed the intimate relationship with these pharmacological or pseudo-pharmacological remedies. The appearance of melanosis coli during colonoscopy is largely due to pigment granule deposition in macrophages located in the colonic mucosa. The pigment intensity is not uniform, being more intense in the cecum and proximal colon compared to the distal colon. Possibly, this reflects higher luminal concentrations of an offending agent in the proximal compared to distal colon, differential absorption along the length of the colon, or finally, differences in macrophage distribution within the colon. Mucosal lymphoid aggregates normally display a distinct absence of pigment producing a "starry sky" appearance, especially in the rectosigmoid region. Interestingly, some focal, usually sessile, colonic mucosal neoplastic lesions, rather than submucosal lesions, may be better appreciated as pigment deposition may be absent or limited. If detected, removal and further histopathologic analysis of the polyp may be facilitated.