Signalling for root nodule organogenesis: a role of the Lotus japonicus cytokinin receptor gene family

根瘤器官发生的信号传导：百脉根细胞分裂素受体基因家族的作用

基本信息

批准号：
249579-2012
负责人：
Szczyglowski, Krzysztof
金额：
$ 3.86万
依托单位：
University of Western Ontario
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2012
资助国家：
加拿大
起止时间：
2012-01-01 至 2013-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=514466
关键词：
Signalling root nodule organogenesis role

项目摘要

In Canada, the agricultural sector is responsible for about 82% of the phosphorus and 49% of the direct nitrogen pollution, mostly through run-off from fertilized soils and livestock farming. This pollution is choking the environment and contributes to a significant loss in food production and increased health risks. Therefore, development of "green" technologies is imperative. In the past, efforts to improve crops have mainly focused on shoot biomass and seed yield while the relevance of roots has often been neglected. The renewed interest in the underground portion of the plant is now reflected by virtually all modern agricultural productivity strategies, which advocate the need for intensification of research on the enhancement of nutrient acquisition and use by crop plants. Ability to control root architecture and extension of symbiotic nitrogen fixation to non-legumes, are being considered as key areas. The research, as proposed by this application, aims to make strategic contributions to the basic knowledge of key signalling mechanisms pertinent to the development of nitrogen-fixing root nodule symbiosis in legumes. This is thought to be an essential step for future rational consideration of transferring this useful process to non-legumes. Although challenging and long-term, this should be offset by the enormous impact this prospective innovation is expected to have.

在加拿大，农业部门造成了约 82% 的磷污染和 49% 的直接氮污染，主要来自施肥土壤和畜牧业的径流。这种污染正在窒息环境，导致粮食产量大幅下降并增加健康风险。因此，发展“绿色”技术势在必行。过去，改良作物的努力主要集中在地上部生物量和种子产量，而根部的相关性往往被忽视。现在，几乎所有现代农业生产力战略都反映出对植物地下部分的新兴趣，这些战略主张需要加强对增强作物养分获取和利用的研究。控制根结构的能力和将共生固氮扩展到非豆科植物被认为是关键领域。本申请提出的这项研究旨在为豆科植物固氮根瘤共生发展相关的关键信号机制的基础知识做出战略贡献。这被认为是未来理性考虑将这一有用过程转移到非豆科植物的重要一步。尽管具有挑战性和长期性，但这应该会被这一前瞻性创新预期产生的巨大影响所抵消。