MAKING OF ACID SOIL-TOLERANT PLNTS BY MOLECULAR MODIFICATIONS OF ALUMINUM TOLERANCE AND PHOSPHORUS RECYCLING CAPABILITY

通过耐铝性和磷回收能力的分子修饰制备耐酸性土壤的植物

• 批准号: 18208008
• 负责人: WAGATSUMA Tadao
• 金额: $ 30.45万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-18208008/
• 关键词: アルミニウム耐性; インベルターゼ; 細胞膜ステロール; 低pH耐性; ヘキソース輸送体; マイクロアレイ; リン酸欠乏応答; 代謝応答; 転写因子; 植物成長; 生理; QTL解析; 細胞伸長; 細胞膜脂質層; シロイヌナズナ; 糖輸送・代謝; 二次代謝産物; リン酸欠乏; 糖; サリチル酸; 有機酸放出; フラポノイド; イネ; 細胞脱脂質; ミヤコグサ; リンリサイクリング能

Aluminum (Al) ion inhibits sugar uptake which leads to the inhibition of water uptake as well as cell elongation. Inhibition of sugar uptake by Al seems to be compensated by the stimulation of translocation of photosynthates. Novel strategy for Al tolerance differing from the known strategy based on the release of organic acid anions was found. Higher sterols in plasma membrane lipid layer of root-tip were demonstrated to be the cause of Al tolerance. Genomic and genetic approaches in Arabidopsis revealed that acid and Al tolerances were co-regulated by the same signal transduction pathway, but with the distinct functional genes for tolerance. Comparative microarray analysis showed that common alterations involved in the metabolisms of sugars and lipids contributed to P recycling. It was suggested that responses in flavonoids synthesis were specific in leguminous plants.

铝（Al）离子抑制糖的吸收，从而导致水的吸收以及细胞伸长的抑制。铝对糖吸收的抑制似乎可以通过刺激光合产物的转运来补偿。发现了一种不同于传统的以释放有机酸阴离子为基础的耐铝策略的新的耐铝策略，根尖质膜脂层中的高甾醇是耐铝的原因。拟南芥基因组和遗传学研究表明，耐酸性和耐铝性受相同的信号转导途径共同调控，但具有不同的耐酸性功能基因。比较微阵列分析表明，参与糖和脂质代谢的共同改变有助于P循环。这表明豆科植物对黄酮类化合物合成的反应具有特异性。

项目成果

イネの発芽期におけるアルミニウム耐性形質の解析

水稻发芽期耐铝性状分析

• 发表时间: 2008
• 作者: Sasaki;T.;et al.;山本洋子;古市卓也;山本洋子
• 通讯作者: 山本洋子

Developmental changes of plant affecting primary photosynthate distribution in rice leaves

• DOI: 10.1007/s11099-006-0076-8
• 发表时间: 2006-12
• 期刊: Photosynthetica
• 影响因子: 2.7
• 作者: T. Shinano;K. Ando;K. Okazaki;M. Osaki

Plant strategies for P uptake from low fertility soils.

植物从低肥力土壤中吸收磷的策略。

• 发表时间: 2010
• 作者: Wasaki;J.
• 通讯作者: J.

Metagenomic analysis on the rhizosphere soil microbiome

根际土壤微生物组的宏基因组分析

• 发表时间: 2011
• 作者: Shinano;T.
• 通讯作者: T.

Closing plant stomata requires a homolog of an aluminum-activated malate transporter.

• DOI: 10.1093/pcp/pcq016
• 发表时间: 2010-03
• 期刊: Plant & cell physiology
• 影响因子: 4.9
• 作者: Sasaki T;Mori IC;Furuichi T;Munemasa S;Toyooka K;Matsuoka K;Murata Y;Yamamoto Y
• 通讯作者: Yamamoto Y