Rhizosphere microbial communities and organic acids secreted by aluminum-tolerant and aluminum-sensitive soybean in acid soil
Rhizosphere microbial communities and organic acids secreted by aluminum-tolerant and aluminum-sensitive soybean in acid soil
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酸性土壤中耐铝和铝敏感大豆根际微生物群落及分泌的有机酸
DOI：
10.1007/s00374-011-0608-7
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发表时间：
2011
影响因子：
6.5
通讯作者：
Yang, Yonghua
中科院分区：
文献类型：
--
作者：
Yang, Tongyi;Liu, Genlin;Li, Yongchun;Zhu, Simei;Zou, Ailan;Qi, Jinliang;Yang, Yonghua
本研究旨在研究酸性土壤中耐铝大豆BX 10和铝敏感大豆BD 2的有机酸分泌与根际微生物群落的相关性。BX 10和BD 2在各生长阶段的有机酸分泌量差异显著。真菌/细菌和革兰氏阴性菌/革兰氏阳性菌比值在不同生育期均受两种大豆基因型的影响。与BD 2相比，BX 10的磷脂脂肪酸在苗期和开花期表现出较高的Shannon多样性，而在结荚期表现出较低的Shannon多样性。回归分析和典范对应分析表明，酒石酸、乳酸和柠檬酸等有机酸对根际细菌群落有显著影响。序列分析表明，未培养的酸杆菌、绿球藻和放线菌富集BD 2，而部分未培养的细菌富集BX 10。两种基因型大豆具有不同的根际微生物群落;根系有机酸分泌物可能影响根际土壤微生物群落组成：酒石酸可能在苗期对根际细菌产生负面影响，乳酸可能在开花期对根际放线菌产生正面影响，琥珀酸可能在结荚期对真菌产生刺激。
This study aimed to investigate the correlation between organic acids secreted by two soybeans genotypes, BX10 [aluminum (Al) tolerant] and BD2 (Al sensitive) and rhizosphere microbial communities in acid soil. The organic acids secreted by BX10 and BD2 were significantly different at each growth stage. Both fungi/bacteria and gram-negative bacteria/gram-positive bacteria ratio values were affected by the two soybean genotypes at different growth periods. Compared with BD2, phospholipid fatty acid of BX10 showed higher Shannon diversity at the seedling and flowering stages, but had lower Shannon diversity at the pod-setting stage. Redundancy analysis and canonical correspondence analysis revealed that the organic acids including tartaric acid, lactic acid, and citric acid significantly affected rhizosphere bacterial communities. Sequence analysis indicated that unculturedAcidobacterium, Chloroflexi, and actinomycete enriched in BD2, whereas some uncultured bacteria enriched in BX10. The two soybean genotypes exhibit distinct rhizosphere microbial communities; root organic acid exudates may affect composition of microbial communities of rhizosphere soil: tartaric acid may negatively affect rhizosphere bacteria at the seedling stage, lactic acid may positively affect rhizosphere actinomycetes at the flowering stage, and succinic acid may stimulate fungi at the pod-setting stage.
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影响因子：
4.3
作者：
D. Pellet;D. Grunes;L. Kochian
通讯作者：
D. Pellet;D. Grunes;L. Kochian
DOI：
10.1007/978-94-011-0221-6
发表时间：
1995
期刊：
--
影响因子：
--
作者：
R. A. Date;N. Grundon;G. Rayment;M. Probert
通讯作者：
R. A. Date;N. Grundon;G. Rayment;M. Probert
影响因子：
4.9
作者：
VONUEXKULL, HR;MUTERT, E
通讯作者：
MUTERT, E
影响因子：
4.8
作者：
Hill, GT;Mitkowski, NA;Nelson, EB
通讯作者：
Nelson, EB
影响因子：
7.4
作者：
DELHAIZE, E;RYAN, PR;RANDALL, PJ
通讯作者：
RANDALL, PJ