草业学报 ›› 2026, Vol. 35 ›› Issue (6): 155-165.DOI: 10.11686/cyxb2025254
• 研究论文 • 上一篇
刘媛媛1,2(
), 杨俊锋1,2, 崔棋雯1,2, 李明源1,2, 王继莲1,2(
)
收稿日期:2025-06-26
修回日期:2025-09-09
出版日期:2026-06-20
发布日期:2026-04-13
通讯作者:
王继莲
作者简介:Corresponding author. E-mail: wjilian0710@163.com基金资助:
Yuan-yuan LIU1,2(
), Jun-feng YANG1,2, Qi-wen CUI1,2, Ming-yuan LI1,2, Ji-lian WANG1,2(
)
Received:2025-06-26
Revised:2025-09-09
Online:2026-06-20
Published:2026-04-13
Contact:
Ji-lian WANG
摘要:
为丰富微生物肥料菌种资源,研制适合于盐碱地田菁种植的根瘤菌剂,从新疆喀什盐碱地田菁试种区根瘤中分离菌株,基于16S rRNA基因扩增与系统发育分析对其进行鉴定,并通过单菌及多菌混合接种验证其对盐碱土中田菁生长的影响。结果共分离到17株菌,分属于剑菌属、肠杆菌属和布鲁氏菌属,以剑菌属占优势。剑菌B-3-1、剑菌C-3-2、肠杆菌A-5-1和布鲁氏菌C-4-1兼具解有机磷和无机磷能力,以此4株菌进行剑菌属单种及与其他菌株混合接种,对田菁生长有积极作用,株高、茎粗、地上干重、叶绿素含量和根干重分别提高了21.2%~56.2%、22.3%~67.8%、4.5%~43.5%、26.8%~149.5%和18.2%~100.0%,同时根系结瘤数量显著增加(P<0.05)。接种处理后的盐碱土壤特性也得到改善,pH、全盐、全磷和全钾含量分别降低了2.4%~4.1%、23.6%~39.1%、23.3%~69.4%和2.2%~21.2%,速效氮和速效磷含量增幅为63.5%~98.4%和0.1%~9.0%。除接种剑菌B-3-1后速效钾含量低于对照,其余处理提高了8.4%~99.7%,尤以混合菌系E(剑菌C-3-2、剑菌B-3-1和布鲁氏菌C-4-1)效果最佳。回接后分离的田菁根瘤菌株与初始接种菌株B-3-1和C-3-2高度同源,证明接种菌株在宿主根际成功定殖。所得根瘤菌株对开发适用于盐碱地复垦和生态修复的微生物肥料有一定应用潜力。
刘媛媛, 杨俊锋, 崔棋雯, 李明源, 王继莲. 新疆喀什盐碱地田菁根瘤中菌株分离及其促生效应[J]. 草业学报, 2026, 35(6): 155-165.
Yuan-yuan LIU, Jun-feng YANG, Qi-wen CUI, Ming-yuan LI, Ji-lian WANG. Isolation and growth-promoting effects of rhizobia from the Sesbania cannabina seed trial area in saline-alkali land in Kashi, Xinjiang[J]. Acta Prataculturae Sinica, 2026, 35(6): 155-165.
菌株编号 Strain number | NaCl含量Sodiumchloride content | pH | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4% | 5% | 6% | 7% | 8% | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |
| C-4-1 | + + | + + | + + | + + | + | + + | + + | + + + | + + | + | + | + |
| B-2-1 | + + | + + | + | + | - | + | + | + + | + + | + | - | - |
| B-3-1 | + + | + + | + + | + | + | + + | + + | + + + | + + + | ++ | + | + |
| A-2-1 | + + | + + | + | + | - | + | + | + + | + + | + + | + | - |
| B-5-1 | + + | + + | + | + | + | + | + + | + + + | + + | + + | + | + |
| A-1-1 | + + | + + | + | + | - | + | + + | + + | + + | + + | + | - |
| A-5-1 | + + | + + | + + | + | + | + + | + + | + + + | + + + | + + | + | + |
| B-4-1 | + + | + + | + | + | + | + | + | + + | + + | + | - | - |
| C-6-1 | + + | + + | + | + | - | + + | + + | + + | + + | + | + | + |
| C-3-2 | + + | + + | + + | + + | + | + + | + + | + + + | + + + | + + | + + | + |
| C-1-1 | + + | + + | + | + | - | + | + | + + | + + | + | - | - |
| B-1-1 | + + | + + | + | + | - | + | + | + + | + + | + | - | - |
| A-4-1 | + + | + + | + + | + | - | + + | + + | + + + | + + | + + | + | - |
| B-6-1 | + + | + + | + | + | - | + | + | + + | + + | + | - | - |
| C-2-1 | + + | + + | + + | + | - | + + | + + | + + | + + | + | + | + |
| C-5-1 | + + | + + | + | + | - | + | + | + + | + + | + + | + | - |
| A-6-1 | + + | + + | + + | + | - | + | + | + + | + + | + | + | - |
表1 菌株耐盐和耐碱试验
Table 1 Salt and alkali resistance tests of the strains
菌株编号 Strain number | NaCl含量Sodiumchloride content | pH | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4% | 5% | 6% | 7% | 8% | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |
| C-4-1 | + + | + + | + + | + + | + | + + | + + | + + + | + + | + | + | + |
| B-2-1 | + + | + + | + | + | - | + | + | + + | + + | + | - | - |
| B-3-1 | + + | + + | + + | + | + | + + | + + | + + + | + + + | ++ | + | + |
| A-2-1 | + + | + + | + | + | - | + | + | + + | + + | + + | + | - |
| B-5-1 | + + | + + | + | + | + | + | + + | + + + | + + | + + | + | + |
| A-1-1 | + + | + + | + | + | - | + | + + | + + | + + | + + | + | - |
| A-5-1 | + + | + + | + + | + | + | + + | + + | + + + | + + + | + + | + | + |
| B-4-1 | + + | + + | + | + | + | + | + | + + | + + | + | - | - |
| C-6-1 | + + | + + | + | + | - | + + | + + | + + | + + | + | + | + |
| C-3-2 | + + | + + | + + | + + | + | + + | + + | + + + | + + + | + + | + + | + |
| C-1-1 | + + | + + | + | + | - | + | + | + + | + + | + | - | - |
| B-1-1 | + + | + + | + | + | - | + | + | + + | + + | + | - | - |
| A-4-1 | + + | + + | + + | + | - | + + | + + | + + + | + + | + + | + | - |
| B-6-1 | + + | + + | + | + | - | + | + | + + | + + | + | - | - |
| C-2-1 | + + | + + | + + | + | - | + + | + + | + + | + + | + | + | + |
| C-5-1 | + + | + + | + | + | - | + | + | + + | + + | + + | + | - |
| A-6-1 | + + | + + | + + | + | - | + | + | + + | + + | + | + | - |
图1 菌株解磷能力测定不同小写字母表示差异显著(P<0.05),下同。Different small letters indicate significant differences among the treatments at P<0.05, the same below.
Fig.1 Determination of phosphate-solubilizing ability of strain
图3 根瘤菌回接对田菁植株生长的影响A图分别为A、B、C、D、E、F和对照组的田菁促生效果;B、C图分别为混合菌E组和对照组处理的根系结瘤情况。Figure A showed the growth-promoting effects of S. cannabina in A, B, C, D, E, F and the control group. Figure B and C showed the root nodulation treated with combination E and CK, respectively.
Fig. 3 Effects of rhizobium inoculation on the growth of S. cannabina
处理 Treatment | pH | 全盐 Soil salinity (g·kg-1) | 速效氮 Available nitrogen (mg·kg-1) | 全钾 Total potassium (g·kg-1) | 速效钾 Available potassium (mg·kg-1) | 全磷 Total phosphorus (g·kg-1) | 速效磷 Available phosphorus (mg·kg-1) |
|---|---|---|---|---|---|---|---|
| A | 8.05±0.02c | 1.02±0.04c | 37.30±0.85c | 12.20±0.81b | 288.50±42.19d | 2.14±0.29d | 14.95±0.73b |
| B | 8.11±0.03b | 1.02±0.14c | 42.83±1.32b | 11.90±0.61b | 210.75±29.39e | 1.10±0.12e | 15.56±0.63ab |
| C | 8.13±0.02b | 0.98±0.02c | 41.99±0.88b | 14.00±0.82a | 296.25±44.02d | 2.80±0.33b | 15.79±0.89ab |
| D | 7.99±0.02d | 1.10±0.06c | 42.15±1.02b | 15.55±1.18a | 379.00±59.23c | 2.76±0.43b | 16.29±1.11a |
| E | 8.03±0.03c | 1.07±0.06c | 45.26±2.71a | 14.55±1.71a | 429.00±48.46bc | 2.73±0.70bc | 15.73±0.31ab |
| F | 8.02±0.01c | 1.23±0.05b | 43.27±1.74b | 11.73±1.41b | 531.75±68.94a | 3.60±0.50a | 15.45±0.70ab |
| CK | 8.33±0.04a | 1.61±0.03a | 22.81±1.13d | 14.88±0.56a | 266.25±23.84de | 2.70±0.14bcd | 14.94±0.49b |
表2 根瘤菌回接对田菁栽培土壤性质的影响
Table 2 Effects of rhizobium inoculation on soil properties in S. cannabina cultivation
处理 Treatment | pH | 全盐 Soil salinity (g·kg-1) | 速效氮 Available nitrogen (mg·kg-1) | 全钾 Total potassium (g·kg-1) | 速效钾 Available potassium (mg·kg-1) | 全磷 Total phosphorus (g·kg-1) | 速效磷 Available phosphorus (mg·kg-1) |
|---|---|---|---|---|---|---|---|
| A | 8.05±0.02c | 1.02±0.04c | 37.30±0.85c | 12.20±0.81b | 288.50±42.19d | 2.14±0.29d | 14.95±0.73b |
| B | 8.11±0.03b | 1.02±0.14c | 42.83±1.32b | 11.90±0.61b | 210.75±29.39e | 1.10±0.12e | 15.56±0.63ab |
| C | 8.13±0.02b | 0.98±0.02c | 41.99±0.88b | 14.00±0.82a | 296.25±44.02d | 2.80±0.33b | 15.79±0.89ab |
| D | 7.99±0.02d | 1.10±0.06c | 42.15±1.02b | 15.55±1.18a | 379.00±59.23c | 2.76±0.43b | 16.29±1.11a |
| E | 8.03±0.03c | 1.07±0.06c | 45.26±2.71a | 14.55±1.71a | 429.00±48.46bc | 2.73±0.70bc | 15.73±0.31ab |
| F | 8.02±0.01c | 1.23±0.05b | 43.27±1.74b | 11.73±1.41b | 531.75±68.94a | 3.60±0.50a | 15.45±0.70ab |
| CK | 8.33±0.04a | 1.61±0.03a | 22.81±1.13d | 14.88±0.56a | 266.25±23.84de | 2.70±0.14bcd | 14.94±0.49b |
菌株 Strain | 最相似菌株 Most similar strain | 相似度 Similarity (%) |
|---|---|---|
| H1 | 附着剑菌 E. adhaerens Casida AT(JNAE01000171) | 99.74 |
| H2 | 田菁剑菌 E. sesbaniae CCBAU 65729T(JF834143) | 99.35 |
| H3 | 附着剑菌 E. adhaerens Casida AT(JNAE01000171) | 99.74 |
| H4 | 附着剑菌 E. adhaerens Casida AT(JNAE01000171) | 99.35 |
| H5 | 田菁剑菌 E. sesbaniae CCBAU 65729T(JF834143) | 99.35 |
表3 田菁根瘤中根瘤菌的再分离
Table 3 Re-isolation of rhizobia from S. cannabina root nodules
菌株 Strain | 最相似菌株 Most similar strain | 相似度 Similarity (%) |
|---|---|---|
| H1 | 附着剑菌 E. adhaerens Casida AT(JNAE01000171) | 99.74 |
| H2 | 田菁剑菌 E. sesbaniae CCBAU 65729T(JF834143) | 99.35 |
| H3 | 附着剑菌 E. adhaerens Casida AT(JNAE01000171) | 99.74 |
| H4 | 附着剑菌 E. adhaerens Casida AT(JNAE01000171) | 99.35 |
| H5 | 田菁剑菌 E. sesbaniae CCBAU 65729T(JF834143) | 99.35 |
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