检索结果-南通市图书馆

Installing the neurospora carotenoid pathway in plants enables cytosolic formation of provitamin a and its sequestration in lipid droplets

引用

Molecular Plant 2023年第6期16卷 1066-1081页

作者： Xiongjie Zheng Yasha Zhang Aparna Balakrishna Kit Xi Liew Hendrik N.J.Kuijer Ting Ting Xiao Ikram Blilou Salim Al-Babili The BioActives Lab Center for Desert Agriculture(CDA)Biological and Environmental Science and Engineering(BESE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia The Laboratory of Plant Cell and Developmental Biology(LPCDB) Center for Desert Agriculture(CDA)Biological and Environmental Science and Engineering(BESE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia Present address:College of Plant Science and Technology Bejing Key Laboratory for Agricultural Application and New TechniqueBeijing University of AgricultureBeijing 102206China

Vitamin A deficiency remains a severe global health issue,which creates a need to biofortify crops with provitamin a carotenoids(PACs).Expanding plant cell capacity for synthesis and storing of PACs outside the plastids is a promising biofortification strategy that has been little ***,we engineered PAC formation and sequestration in the cytosol of Nicotiana benthamiana leaves,Arabidopsis seeds,and citrus callus cells,using a fungal(Neurospora crassa)carotenoid pathway that consists of only three enzymes converting C5 isopentenyl building blocks formed from mevalonic acid into PACs,including β-*** strategy led to the accumulation of significant amounts of phytoene and γ-and β-carotene,in addition to fungal,health-promoting carotenes with 13 conjugated double bonds,such as the PAC torulene,in the *** the isopentenyl diphosphate pool by adding a truncated Arabidopsis hydroxymethylglutaryl-coenzyme A reductase substantially increased cytosolic carotene *** carotenes accumulate in cytosolic lipid droplets(CLDs),which represent a novel sequestering sink for storing these pigments in plant ***,β-carotene accumulated in the cytosol of citrus callus cells was more light stable compared to compared with plastidialβ-***,engineering cytosolic carotene formation increased the number of large-sized CLDs and the levels of β-apocarotenoids,including retinal,the aldehyde corresponding to vitamin ***,our study opens up the possibility of exploiting the high-flux mevalonic acid pathway for PAC biosynthesis and enhancing carotenoid sink capacity in green and non-green plant tissues,especially in lipid-storing seeds,and thus paves the way for further optimization of carotenoid biofortification in crops.

关键词： Neurospora crassa carotenoid biosynthesis provitamin a metabolic engineering synthetic metabolism cytosolic lipid droplets carotenoid sequestration carotenoid stability

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Breeding Major Cereal Grains through the Lens o~ ~iutrition Sensitivity

引用

Molecular Plant 2018年第1期11卷 23-30页

作者： Shu Yu Li Tian Department of Plant Sciences University of California Davis Davis CA 95616 USA Shanghai Chenshan Plant Science Research Center Chinese Academy of Sciences Shanghai 201602 China Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai Chenshan Botanical Garden Shanghai 201602 China

Cereal grains are the common food staples that collectively provide over 50% of dietary calories and proteins for the world＇s population. Although the Green Revolution has greatly increased the yield of commercial cereal crops, they often lack nutrients essential for human health in the edible tissues. In developing nutrition-sensitive agriculture, the nutritional quality of cereal grains has been a major target for improvement using breeding and biotechnology approaches. This review examines recent progress on biofortification of micronutrients （provitamin a and folates） and an essential amino acid （lysine） in three major cereal grains, wheat, rice, and maize, through plant breeding. In addition, how natural variations, induced mutations, and the advanced genome-editing technologies can be applied to improving the nutrient content and stability in these cereal grains are discussed. High-yield cereal crops pyramided with improved （micro）nutrient contents hold great promise to meet the increasing demand of nutritionally limited popula- tions and to contribute to achieving sustainable nutrition security.

关键词： cereal grains nutrition sensitive plant breeding provitamin a lysine folates

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Physicochemical,microbiological and sensory properties of low fat yoghurt fortified with carrot powder

引用

International Journal of Agricultural and Biological Engineering 2016年第1期9卷 118-124页

作者： Eshmail P.Madora Thakhani K.Takalani Mpho E.Mashau Department of Food Science and Technology School of AgricultureUniversity of VendaThohoyandou 0950.South Africa Chibuku Super Brewery ChitungwizaZimbabwe

Yoghurt is considered as a healthy food and incorporating carrot powder will make it even *** powder is a good source of beta carotene and provitamin *** objective of this study was to determine the effects of adding carrot powder on the physicochemical,microbiological and sensory properties of low fat plain *** and carrot yoghurt were prepared in the laboratory scale production using low fat *** yoghurt was prepared by blending low fat milk with 1%,2%and 3%carrot powder before *** analysis revealed a decrease in pH value and an increase in titratable acidity,viscosity and total soluble solids with the increase of carrot *** the other hand,protein content decreased with the increase of carrot *** terms of the lightness(L*)and the redness(a*),3%carrot yoghurt had low values of lightness while it had higher values of *** count showed the significant difference between the 3%carrot yoghurt and 1%and 2%carrot *** was a significant difference on the sensory scores of colour and aroma of carrot yoghurt and plain yoghurt as the carrot yoghurt got higher scores than plain *** was no significant difference(p<0.05)between the acceptability of the plain yoghurt,1%and 2%carrot yoghurt and a significant difference was there between 3%.Thus,fortifying yoghurt with 1%and 2%carrot powder produced acceptable yoghurt with beneficial health effects.

关键词： yoghurt physicochemical property beta carotene provitamin a carrot powder

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High-Yielding and Carotenoid-Rich Clones Identification among Thirty-One Cassava Clones with Colored Flesh

引用

American Journal of Plant Sciences 2021年第9期12卷 1445-1458页

作者： N’Zue Boni Coulibaly Idriss Koudous Koffi Kouamé Guillaume Essis Brice Sidoine Dibi Konan Evrard Brice Sie Raoul Sylvère Centre National de Recherche Agronomique (CNRA) Baouké C&#244 te d’Ivoire Université Nangui Abrogoua UFR Sciences de la Nature Unité de Phytotechnie et Amélioration Génétique Abidjan 02 C&#244te d’Ivoire

Cassava is the second most important food crop produced and consumed in Côte d’Ivoire, after yam. White-fleshed varieties, which are low in total carotenoids, are widespread, while coloured-fleshed varieties (yellow to orange), carotenoid-rich, are rare. However, the consumption of carotenoid-rich cassava varieties could help to alleviate health problems related to vitamin A deficiency. This study aims to identify high agronomic performance, carotenoid-rich and versatile cassava varieties among 31 clones introduced from IITA. They were compared to three controls, Bocou2, Yacé and Bonou2, according to agronomic and technological parameters. Results found that out of the 31 clones, six (I082425, I084157, I084563, I085894, I083774 and I070520) were more productive than the control Bocou2 (46.01 ± 14.88 t·ha-1);the clone I083774 had the highest yield (55.88 ± 6.16 t·ha-1). Twenty-one clones had dry matter contents, ranging from 37% to 41%, significantly similar to Yacé control (42.70%). Thirteen clones had highest total carotenoid contents than the control Bocou2. Clones I084157 and I082425 recorded the highest total carotenoid contents with 17.57 ± 1.92 and 18.39 ± 1.19 μg·g-1 respectively. Overall 31 tested clones were fibrous to varying degrees while 27 clones had mild or neutral post-cooking flavours and 17 clones had poor cooking. The clone I084157 is the best compromise of agronomic and technological desired traits.

关键词： Manihot esculenta Carotenoid-Rich Coloured-Flesh Cassava High Yied provitamin a

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Golden rice on a mission

Golden rice on a mission

引用

第十四届全国植物基因组学大会

作者： Peter Beyer Faculty of Biology University of Freiburg

Golden Rice(GR) denotes a genetically modified rice(Oryza sativa) that produces B-carotene(provitamin a) in the grain’s *** ofβ-carotene confers a yellow color to the grain,which becomes visible after *** towards th... 详细信息

关键词： rice provitamin a beta carotene biofortification genetic modification

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：