七彩花生根瘤内生菌对氮添加的响应及其与植物化学计量特征的关系
Response of endophytes in root nodules of Arachis hypogaea ‘Qicai’ to nitrogen addition and its relationship with plant stoichiometry characteristics
七彩花生根瘤内生菌对氮添加的响应及其与植物化学计量特征的关系 |
| 李林, 孙毅, 杨晓琼, 方海东, 闫帮国 |
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Response of endophytes in root nodules of Arachis hypogaea ‘Qicai’ to nitrogen addition and its relationship with plant stoichiometry characteristics |
| LI Lin, SUN Yi, YANG Xiao-Qiong, FANG Hai-Dong, YAN Bang-Guo |
| 图4 七彩花生根瘤内生菌群落共现网络分析。A, 根瘤细菌群共现网络。B, 不同菌群模块丰度与叶片化学计量特征关系。C, 各模块主要菌属组成。N0, 0 kg·hm-2; N1, 140 kg·hm-2; N2, 280 kg·hm-2。C, 碳; N, 氮; P, 磷。Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium, 根瘤菌属; Bradyrhizobium, 慢生根瘤菌属; Burkholderia- Caballeronia-Paraburkholderia, 伯克霍尔德菌属; Enterobacter, 肠杆菌属; Kosakonia, 科萨克氏菌属; Mycobacterium, 分歧杆菌属; Novosphingobium, 新鞘氨醇菌属; Pantoea, 泛菌属; Saccharimonadales, 糖单孢菌; Unassigned, 未分类。*, p ≤ 0.05; **, p ≤ 0.01。 |
| Fig. 4 Co-occurrence network analysis of endophytic communities in root nodules of Arachis hypogaea ‘Qicai’. A, Cooccurrence network of root nodule endophytes. B, Associations between the relative abundance of different clusters with leaf stoichiometric characteristics. C, Main bacterial genus composition of each module. N0, 0 kg·hm-2; N1, 140 kg·hm-2; N2, 280 kg·hm-2. C, carbon; N, nitrogen; P, phosphorus. *, p ≤ 0.05; **, p ≤ 0.01. |
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