Mechanisms regulating the boron nutritional status in rapeseed and Arabidopsis and their implications for the development of boron-efficient genotypes
油菜籽和拟南芥硼营养状况的调节机制及其对硼高效基因型开发的影响
基本信息
- 批准号:229633755
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Independent Junior Research Groups
- 财政年份:2012
- 资助国家:德国
- 起止时间:2011-12-31 至 2018-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Boron (B) is an essential microelement for plants. Despite the use of modern fertilization methods, B-deficiency still causes losses in agricultural plant production. Even though many positive effects of B on plant growth and physiology have been reported, a large majority of B functions and the regulatory mechanisms controlling the B nutritional status remain unknown.The main objective of this project is to elucidate how the greatly B-deficiency-sensitive Brassica crop plants process and regulate their B status during vegetative and reproductive growth. In this context, the project aims at identifying the mode of action of B in mechanisms regulating the B status itself and at uncovering those mechanisms and underlying genes contributing to B-efficiency in different genotypes.Plant species subjected to investigation are the agronomically important crop plant Brassica napus (rapeseed) and its close relative the model plant Arabidopsis thaliana.Questions addressed within the scope of this project should lead to a detailed understanding of mechanisms controlling B uptake and allocation from the level of the whole plant down to the cellular level. Nodulin26-like Intrinsic Proteins (NIPs), which belong to the aquaporin protein family, are essential for B uptake and distribution. The systematic focus on the molecular and physiological characterization of B. napus NIPs will clarify their role in B transport and will identify novel NIP-associated mechanisms playing key roles in the B response network. To further resolve the mostly unknown impact of the B nutritional status on gene regulation and metabolism, RNA-sequencing will be performed on B-sufficient and B-deficient rapeseed plants. This will identify yet unknown B-responsive genes playing key roles in signalling pathways, B-dependent differentiation processes and mechanisms regulating the B homeostasis. QTL mapping (on a generated DH rapeseed population deriving from a cross between genotypes with contrasting B-efficiencies) and GWAS analyses (on data of an Arabidopsis accession panel) will be performed and the information will be used to identify loci and genes which are responsible for B-deficiency tolerance in rapeseed and Arabidopsis, respectively.Boric acid and arsenous acid (As) share the same NIP-mediated transport pathways. To assess whether it is possible to design B-specific NIP channels in order to generate crops with low concentrations of the toxic As mineral, we will investigate NIP channel characteristics which have an influence on metalloid transport selectivity in detail.This project has been designed to generate original knowledge on regulative mechanisms controlling the B homeostasis and on underlying genes. This project promises to contribute to the improvement of B management in the field, the optimization of agronomically relevant plant traits and the development of B-deficiency-tolerant genotypes.
硼(B)是植物必需的微量元素。尽管使用了现代施肥方法,缺硼仍然造成农业植物生产的损失。尽管B对植物生长和生理的许多积极影响已被报道,但绝大多数B的功能和控制B营养状况的调控机制仍不清楚,本项目的主要目的是阐明对缺硼极为敏感的芸苔属作物在营养生长和生殖生长过程中如何处理和调节其B状况。在这一背景下,该项目旨在确定B在调节B状态本身的机制中的作用模式,并揭示这些机制和不同基因型中有助于B效率的潜在基因。(油菜籽)和它的近亲模式植物拟南芥。在这个项目范围内解决的问题应该导致详细的了解机制控制B的吸收和分配,从全株水平下降到细胞水平。Nodulin 26-like Intrinsic Proteins(NIPs)属于水通道蛋白家族,是B摄取和分布的必需蛋白。系统地研究了B的分子和生理特性。油菜NIP将阐明它们在B运输中的作用,并将确定在B响应网络中发挥关键作用的新型NIP相关机制。为了进一步解决B营养状况对基因调控和代谢的大多数未知影响,将对B充足和B缺乏的油菜籽植物进行RNA测序。这将确定未知的B-反应基因发挥关键作用的信号转导途径,B-依赖的分化过程和机制,调节B稳态。将进行QTL定位(在产生的DH油菜群体上,所述DH油菜群体源自具有对比的B效率的基因型之间的杂交)和GWAS分析(在拟南芥登录面板的数据上),并且所述信息将用于分别鉴定油菜和拟南芥中负责B缺乏耐受性的基因座和基因。为了评估是否有可能设计B-特异性NIP通道,以产生低浓度的有毒As矿物质的作物,我们将研究NIP通道的特性,这些特性对类金属运输选择性的影响详细。该项目旨在产生关于控制B稳态的调节机制和相关基因的原始知识。该项目有望为改善田间B管理、优化农艺相关植物性状和开发耐缺B基因型做出贡献。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Boron Deficiency Effects on Sugar, Ionome, and Phytohormone Profiles of Vascular and Non-Vascular Leaf Tissues of Common Plantain (Plantago major L.)
- DOI:10.3390/ijms20163882
- 发表时间:2019-08
- 期刊:
- 影响因子:5.6
- 作者:Benjamin Pommerrenig;K. Eggert;G. Bienert
- 通讯作者:Benjamin Pommerrenig;K. Eggert;G. Bienert
Pollen-Specific Aquaporins NIP4;1 and NIP4;2 Are Required for Pollen Development and Pollination in Arabidopsis thaliana
- DOI:10.1105/tpc.15.00776
- 发表时间:2016-05-01
- 期刊:
- 影响因子:11.6
- 作者:Perez Di Giorgio, Juliana Andrea;Patrick Bienert, Gerd;Prometeo Muschietti, Jorge
- 通讯作者:Prometeo Muschietti, Jorge
Root system size response of bzh semi-dwarf oilseed rape hybrids to different nitrogen levels in the field
- DOI:10.1093/aob/mcy197
- 发表时间:2018-11
- 期刊:
- 影响因子:4.2
- 作者:A. Schierholt;Tina Tietz;G. Bienert;A. Gertz;Sebastian Miersch;H. Becker
- 通讯作者:A. Schierholt;Tina Tietz;G. Bienert;A. Gertz;Sebastian Miersch;H. Becker
Functional evolution of Nodulin26-like Intrinsic Proteins: From bacterial arsenic detoxification to plant nutrient transport.
- DOI:10.1111/nph.16217
- 发表时间:2019-11
- 期刊:
- 影响因子:0
- 作者:Benjamin Pommerrenig;T. A. Diehn;Nadine Bernhardt;M. Bienert;Namiki Mitani-Ueno;Jacqueline Fuge;Annett Bieber;Christoph Spitzer;A. Bräutigam;J. Ma;F. Chaumont;G. Bienert
- 通讯作者:Benjamin Pommerrenig;T. A. Diehn;Nadine Bernhardt;M. Bienert;Namiki Mitani-Ueno;Jacqueline Fuge;Annett Bieber;Christoph Spitzer;A. Bräutigam;J. Ma;F. Chaumont;G. Bienert
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Professor Dr. Gerd Patrick Bienert其他文献
Professor Dr. Gerd Patrick Bienert的其他文献
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{{ truncateString('Professor Dr. Gerd Patrick Bienert', 18)}}的其他基金
Characterization of radicle root hair functions adding to a vigorous seedling establishment under adverse nutrient and water seedbed conditions
胚根根毛功能的表征有助于在不利的营养和水分苗床条件下促进幼苗的旺盛生长
- 批准号:
403625794 - 财政年份:2018
- 资助金额:
-- - 项目类别:
Priority Programmes
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