Biodiv Sci ›› 2014, Vol. 22 ›› Issue (4): 508-515. DOI: 10.3724/SP.J.1003.2014.14053
Special Issue: 土壤生物与土壤健康
• Original Papers • Previous Articles Next Articles
Jingbo Kan1, Lina Li2, Dong Qu2,*(), Baoli Wang1,*()
Received:
2014-03-14
Accepted:
2014-05-16
Online:
2014-07-20
Published:
2014-07-24
Contact:
Qu Dong,Wang Baoli
Jingbo Kan, Lina Li, Dong Qu, Baoli Wang. Changes in bacterial abundance and community structure associated with flooding in paddy soil[J]. Biodiv Sci, 2014, 22(4): 508-515.
Fig. 2 DGGE profiles of bacterial community in different flooding time of paddy soil. Lane 1-8 showed the samples of flooding time of 1 h, 1 d, 5 d, 10 d, 20 d, 30 d, 40 d and 60 d, respectively.
淹水时间 Flooding time | 丰富度指数 Margalef index (dMa) | Shannon指数 Shannon-Wiener index (H') | 均匀度指数 Evenness index (E) | Simpson指数 Simpson index (Ds) |
---|---|---|---|---|
1 h | 3.954 | 2.991 | 0.941 | 0.948 |
1 d | 3.655 | 2.962 | 0.932 | 0.945 |
5 d | 5.102 | 3.304 | 0.945 | 0.965 |
10 d | 5.371 | 3.368 | 0.955 | 0.965 |
20 d | 5.316 | 3.379 | 0.950 | 0.966 |
30 d | 5.657 | 3.382 | 0.959 | 0.965 |
40 d | 5.328 | 3.261 | 0.917 | 0.963 |
60 d | 4.914 | 3.228 | 0.931 | 0.963 |
Table 1 Diversity indices of bacterial community in different flooding periods of a paddy soil
淹水时间 Flooding time | 丰富度指数 Margalef index (dMa) | Shannon指数 Shannon-Wiener index (H') | 均匀度指数 Evenness index (E) | Simpson指数 Simpson index (Ds) |
---|---|---|---|---|
1 h | 3.954 | 2.991 | 0.941 | 0.948 |
1 d | 3.655 | 2.962 | 0.932 | 0.945 |
5 d | 5.102 | 3.304 | 0.945 | 0.965 |
10 d | 5.371 | 3.368 | 0.955 | 0.965 |
20 d | 5.316 | 3.379 | 0.950 | 0.966 |
30 d | 5.657 | 3.382 | 0.959 | 0.965 |
40 d | 5.328 | 3.261 | 0.917 | 0.963 |
60 d | 4.914 | 3.228 | 0.931 | 0.963 |
淹水时间 Flooding time | 1 h | 1 d | 5 d | 10 d | 20 d | 30 d | 40 d | 60 d |
---|---|---|---|---|---|---|---|---|
1 h | 100 | |||||||
1 d | 79.167 | 100 | ||||||
5 d | 70.175 | 70.175 | 100 | |||||
10 d | 67.857 | 62.069 | 92.537 | 100 | ||||
20 d | 61.017 | 57.627 | 85.294 | 89.855 | 100 | |||
30 d | 62.069 | 58.621 | 86.567 | 91.177 | 95.652 | 100 | ||
40 d | 61.017 | 57.627 | 85.294 | 86.957 | 91.429 | 95.652 | 100 | |
60 d | 57.143 | 57.143 | 83.087 | 84.849 | 86.567 | 90.909 | 95.522 | 100 |
Table 2 Similarity index (%) of bacterial community in different flooding periods of a paddy soil
淹水时间 Flooding time | 1 h | 1 d | 5 d | 10 d | 20 d | 30 d | 40 d | 60 d |
---|---|---|---|---|---|---|---|---|
1 h | 100 | |||||||
1 d | 79.167 | 100 | ||||||
5 d | 70.175 | 70.175 | 100 | |||||
10 d | 67.857 | 62.069 | 92.537 | 100 | ||||
20 d | 61.017 | 57.627 | 85.294 | 89.855 | 100 | |||
30 d | 62.069 | 58.621 | 86.567 | 91.177 | 95.652 | 100 | ||
40 d | 61.017 | 57.627 | 85.294 | 86.957 | 91.429 | 95.652 | 100 | |
60 d | 57.143 | 57.143 | 83.087 | 84.849 | 86.567 | 90.909 | 95.522 | 100 |
Fig. 4 Phylogenetic tree constructed with neighbor-joining methods based on 16S rRNA V3 gene sequences. Boldface type indicates bands number obtained in this study. The scale bar represents 10% estimated sequence divergence. U. stands for uncultured.
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