Mechanisms of plant-microbes symbiotic systems for the adaptation to acid soil

植物-微生物共生系统适应酸性土壤的机制

• 批准号: 23580462
• 负责人: SUNAIRI Michio
• 金额: $ 2.83万
• 依托单位: Nihon University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23580462/
• 关键词: 酸性土壌適応機構; 遺伝子資源; 根圏微生物; 脂質; 植物・微生物共生系; アルミニウム耐性; Rhodotorula酵母; 多糖; ポストゲノミックス; ゲノム

Although rhizospheric microorganisms of acid-soil tolerant plants might play important roles in their adaptation to acid soils, their symbiotic tolerance mechanisms has been little known. To elucidate those mechanisms the draft genome sequences of such rhizospheric microorganisms were determined. Based on these draft genome sequences and other genome informations symbiotic interactions between plant hosts and rhizospheric microorganisms and those among rhizospheric microorganisms were studied. The structure and functions of extracellular polysaccharides produced by a symbiotic bacterium were determined, which suggested its roles in acid soil tolerance of the host plant. Significant differences in membrane lipids of Rhodotorula taiwanensis RS1 between cells grown in the presence and absence of aluminum ions were detected and the roles of such lipid in aluminum tolerance were examined.

尽管耐酸植物根际微生物在其适应酸性土壤中可能起到重要作用，但其共生耐受机制却鲜为人知。为了阐明这些机制，我们测定了这些根际微生物的基因组草图序列。基于这些基因组草图和其他基因组信息，研究了植物寄主与根际微生物之间以及根际微生物之间的共生作用。测定了一株共生菌产生的胞外多糖的结构和功能，表明其在寄主植物耐酸性土壤中的作用。检测到在铝离子存在和不存在的情况下，台湾红酵母RS1细胞的膜脂含量存在显著差异，并探讨了这种膜脂在耐铝性中的作用。

项目成果

Characteristics of nutrient salt uptake associated with water use of corn as a catch crop at different plant densities in a greenhouse

温室中不同种植密度下作为农作物的玉米的养分盐吸收特征与用水相关

• DOI: 10.1016/s1002-0160
• 发表时间: 2014
• 期刊: Pedosphere
• 影响因子: 5.7
• 作者: Yasutake;D.;Kiyokawa;C.;Kondo;K.;Nomiyama;R.;Kitano;M.;Mori;M.;Yamane;S.;Maeda;M.;Nagare;H. and Fujiwara;T.
• 通讯作者: T.

Al耐性菌Pullulanibacillus属細菌CA42株の生産するAl吸着性多糖の構造について

耐铝普鲁兰芽孢杆菌CA42产铝吸附多糖的结构

• 发表时间: 2011
• 作者: Zhao Xue Qiang;Aizawa Tomoko;Wang Chao;Schneider Jessica;Shen Ren Fang;Sunairi Michio;佐藤准貴,相澤朋子,浦井誠,砂入道夫
• 通讯作者: 佐藤准貴,相澤朋子,浦井誠,砂入道夫

The mechanism of high Al tolerance in Rhodotorula taiwanensis RS1

台湾红酵母RS1高铝耐受机制

• 发表时间: 2013
• 作者: Zhao Xue Qiang;Tomoko Aizawa;Wang Chao;Schneider Jessica;Shen Ren Fang;and Michio Sunairi
• 通讯作者: and Michio Sunairi