权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Cuticle mutants of Arabidopsis thaliana L. Heynh.: quantification of cuticular permeability

拟南芥 (Arabidopsis thaliana L. Heynh.) 的角质层突变体：角质层通透性的量化

基本信息

批准号：
45318452
负责人：
Professor Dr. Lukas Schreiber
金额：
--
依托单位：
Institut für Zelluläre und Molekulare Botanik (IZMB)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2007
资助国家：
德国
起止时间：
2006-12-31 至 2010-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/45318452?language=en
关键词：
Cuticle mutants Arabidopsis thaliana L.

项目摘要

The plant cuticle forming the leaf/atmosphere interface protects higher land-living plants from desiccation. In the past years, a series of Arabidopsis mutants with defects in cuticle formation have been described and genes with putative functions in cuticle biosynthesis have been identified. Although, it has been hypothesized that cuticular defects affect cuticular permeability, basic studies quantifying cuticular transport properties of cuticle mutants in an unambiguous way have not been carried out yet. Therefore convincing evidence that cuticular permeability is affected in these mutants is lacking. This project aims at correlating physiological properties of the Arabidopsis cuticle as a transport barrier with the genes involved in cuticle biosynthesis. This includes the quantitative determination of leaf surface transport properties of Arabidopsis cuticle mutants in comparison to the wild type. In addition, determined transport properties have to be related to changes in the chemical composition of cuticles of Arabidopsis mutants. Employing the model species Arabidopsis, results of this project will provide a more detailed knowledge of how cuticular function as a transport barrier is affected by changes of genetic determinants. The outcome of this research is relevant in the fields of plant stress physiology (stress tolerance of plants) and agricultural chemistry (foliar uptake of pesticides).

植物表皮形成叶片/大气界面，保护高等陆生植物免受干燥。在过去的几年中，一系列拟南芥突变体的角质层形成缺陷已被描述和角质层生物合成的基因被确定与推定的功能。虽然，它已被假设，角质层缺陷影响角质层渗透性，以明确的方式量化角质层突变体的角质层运输性能的基础研究尚未进行。因此，缺乏令人信服的证据表明表皮渗透性在这些突变体中受到影响。本项目旨在将拟南芥角质层作为运输屏障的生理特性与参与角质层生物合成的基因相关联。这包括拟南芥角质层突变体与野生型相比的叶表面运输特性的定量测定。此外，确定的运输性能必须与拟南芥突变体的cuberase的化学组成的变化。本研究以模式植物拟南芥为研究对象，将提供表皮作为运输屏障的功能如何受遗传因子变化影响的更详细的知识。这项研究的结果与植物胁迫生理学（植物的胁迫耐受性）和农业化学（农药的叶面吸收）领域有关。