Analysis of bacterial community characteristics in the rhizosphere soil of wild tree peony

doi:10.12302/j.issn.1000-2006.202210031

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2023, Vol. 47 ›› Issue (3): 45-55.doi: 10.12302/j.issn.1000-2006.202210031

Special Issue: 牡丹培育与应用研究

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Analysis of bacterial community characteristics in the rhizosphere soil of wild tree peony

GUO Lili¹(), ZHANG Chenjie¹, WANG Fei², SHEN Jiajia¹, ZHANG Kaiyue¹, HE Lixia³, GUO Qi¹, HOU Xiaogai¹^,^*()

1. College of Agriculture/Tree Peony, Henan University of Science and Technology, Luoyang 471023, China
2. School of Resource and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
3. Gansu Provincial Agricultural Technology Promotion Station, Lanzhou 730020, China

Received:2022-10-24 Revised:2022-12-04 Online:2023-05-30 Published:2023-05-25
Contact: HOU Xiaogai E-mail:guolili@haust.edu.cn;hkdhxg@haust.edu.cn

Abstract

Abstract:

【Objective】 The microbial community in the rhizosphere is produced by the interactions of the soil environment and root metabolic activities, and plays an important role in plant growth and development. Analysis of characteristics of bacterial community in the rhizosphere soil of wild tree peony species possesses important theoretical significance for the effective use of microbial resources to protect wild plant germplasm resources and lays a foundation for improving the soil environment of wild tree peony species and realizing the broad-spectrum planting of high-quality germplasm resources. 【Method】 In the present study, MiSeq high-throughput sequencing technology with 16S rRNA genes was employed to investigate bacterial community characteristics in the rhizosphere soil of nine wild tree peony species (Paeonia ludlowii, P. potaninii, P. delavayi, P. lutea, P. rockii, P. ostii, P. decomposita, P. jishanensis and P. qiui) as well as their relevance with physicochemical properties. 【Result】A total of 606 536 sequences and 99 OTU clusters were obtained by high-throughput sequencing, which belonged to 24 phyla, 84 classes, 154 orders, 280 families and 603 genera. Alpha diversity analysis revealed that the rhizosphere microbial community of P. ostii contained the highest number of species. Beta analysis revealed that the bacterial community structures in the rhizosphere soils of P. decomposita, P. rockii, P. lutea, P. ostii, P. delavayi and P. ludlowii were similar. Analysis of bacterial community compositions showed that the core and dominant bacteria in the rhizosphere soil were Proteobacteria, Acidobacteria, Actinobacteria and Chloroflexi. Significant differences were found in beneficial bacteria among different wild tree species, such as Acidobacteria, Chloroflexi, Nitrospirae, Gemmatimonadetes, Nitrosospira and Pseudomonas. Predicted functions of the rhizosphere bacterial community have mostly focused on metabolism, genetic information processing, and environmental information processing. The bacterial community in the rhizosphere of wild peony trees is significantly affected by soil organic matter and available potassium. 【Conclusion】These results indicated that the bacterial community structure in the rhizosphere soil of different wild tree peony species was different, and the formation of a bacterial community was closely related to the varieties of tree peony. The enrichment in beneficial bacteria (genera) promoted plant growth. In the future, rhizospheric microbial resources could be effectively utilized to improve the soil environment of wild tree peonies, to realize the broad-spectrum planting of high-quality germplasm resources, and to lay the foundation for the protection of wild planting resources.

Key words: Paeonia × suffruticosa, wild tree peony, properties of rhizospheric soil, rhizospheric bacteria, community structure, community composition, correlation analysis

CLC Number:

S685.11
Q938

GUO Lili, ZHANG Chenjie, WANG Fei, SHEN Jiajia, ZHANG Kaiyue, HE Lixia, GUO Qi, HOU Xiaogai. Analysis of bacterial community characteristics in the rhizosphere soil of wild tree peony[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2023, 47(3): 45-55.

Figures/Tables 9

Table 1

Fig.1

Table 2

Fig.2

Table 3

The relative abundance of bacteria in the rhizosphere soil at the phylum level%"

种 species	变形菌门 Proteobacteria	酸杆菌门 Acidobacteria	放线菌门 Actinobacteria	绿弯菌门 Chloroflexi	细菌未分类 bacteria_ unclassified	芽单孢菌门 Gemmati- monadetes	拟杆菌门 Bacteroidetes	厚壁菌门 Firmicutes	硝化螺旋菌门 Nitrospirae	蓝菌门 Cyanobacteria	疣微菌门 Verrucomicrobia
四川牡丹 P. decomposita	33.89±0.60 a	35.61±1.42 a	11.27±0.99 b	3.52±0.04 c	4.59±0.15 a	4.36±0.28 a	2.19±0.24 ab	0.78±0.04 b	1.76±0.15 abc	0.03±0.01 a	0.54±0.01 b
紫斑牡丹 P. rockii	32.00±1.64 a	34.84±1.41 ab	9.07±0.46 b	4.10±0.41 bc	6.19±0.92 a	3.34±0.58 abc	3.05±0.90 ab	1.08±0.09 b	2.28±0.11 ab	0.06±0.05 a	1.72±0.31 a
黄牡丹 P. lutea	34.20±7.16 a	24.76±3.45 abc	16.64±1.09 b	3.12±0.28 c	5.78±1.90 a	2.94±0.44 abc	5.12±1.39 ab	0.83±0.24 b	1.28±0.19 bcd	2.19±1.94 a	0.91±0.26 ab
卵叶牡丹 P. qiui	22.09±7.56 ab	22.24±6.00 bc	27.12±9.94 ab	8.92±3.77 bc	7.96±2.10 a	2.77±1.07 abc	1.37±0.66 b	0.73±0.27 b	1.03±0.34 cde	1.95±1.89 a	1.19±0.35 ab
杨山牡丹 P. ostii	33.11±1.72 a	28.38±2.61 ab	14.04±2.94 b	4.37±1.02 bc	5.47±0.50 a	4.71±0.58 a	2.74±1.10 ab	1.43±0.08 b	1.63±0.13 abc	1.23±1.21 a	0.93±0.13 ab
狭叶牡丹 P. potanini	32.35±0.72 a	25.73±1.34 ab	17.79±4.65 b	4.12±0.3 bc	4.73±0.45 a	4.54±1.07 a	3.98±1.02 ab	1.03±0.06 b	1.49±0.06 bcd	1.04±0.63 a	1.21±0.06 ab
紫牡丹 P. delavayi	9.35±3.32 b	12.59±3.27 c	42.13±8.63 a	17.44±5.43 a	6.40±1.56 a	0.53±0.20 c	1.08±0.66 b	0.58±0.06 b	0.28±0.10 e	6.42±6.30 a	0.72±0.24 ab
稷山牡丹 P. jishanensis	13.53±8.46 b	12.80±7.54 c	37.77±11.87 a	12.83±4.50 ab	5.67±1.86 a	0.78±0.69 bc	1.06±0.91 b	12.83±9.64 a	0.59±0.55 de	0.05±0.04 a	0.38±0.23 b
大花黄牡丹 P. ludlowii	33.79±1.01 a	30.85±1.45 ab	9.30±0.54 b	3.89±0.15 bc	5.70±0.39 a	3.58±0.49 ab	5.49±0.18 a	0.96±0.12 b	2.58±0.10 a	0.16±0.08 a	1.21±0.15 ab

Table 3

Fig.3

Fig.4

Fig.5

Fig.6

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种 species	pH	有机质含量/ (g·kg^-1) organic matter content	全氮含量/ (g·kg^-1) total nitrogen content	速效磷含量/ (mg·kg^-1) available phosphorus content	速效钾含量/ (mg·kg^-1) available potassium content
四川牡丹P. decomposita	8.27±0.05 bc	10.04±0.61 a	0.52±0.06 a	4.33±0.19 e	115.09±4.05 cd
紫斑牡丹P. rockii	8.22±0.00 bc	9.78±2.35 a	0.29±0.01 c	5.28±0.48 e	121.20±1.81 c
黄牡丹P. lutea	8.16±0.02 c	6.08±0.98 b	0.49±0.06 a	17.29±0.44 a	149.12±4.95 b
卵叶牡丹P. qiui	8.16±0.03 c	7.07±0.60 ab	0.42±0.01 abc	13.10±0.29 b	88.73±5.29 e
杨山牡丹P. ostii	8.44±0.05 a	7.48±0.78 ab	0.40±0.05 abc	12.51±0.25 b	95.18±1.77 de
狭叶牡丹P. potanini	8.37±0.05 ab	4.67±0.14 b	0.29±0.03 c	6.32±0.16 d	75.22±6.39 e
紫牡丹P. delavayi	8.16±0.05 c	6.83±1.02 ab	0.32±0.04 bc	2.36±0.18 f	148.64±14.85 b
稷山牡丹P. jishanensis	8.29±0.04 bc	4.87±0.67 b	0.45±0.05 ab	2.56±0.19 f	120.72±5.27 c
大花黄牡丹P. ludlowii	8.21±0.04 bc	6.98±0.18 ab	0.38±0.03 abc	8.35±0.62 c	204.58±9.17 a

种 species	Chao1丰富度估计量 Chao1 richness estimator	物种丰富度指数 species richness index	香农多样性指数 Shannon diversity index	辛普森多样性指数 Simpson diversity index	测序深度指数 sequencing depth index
四川牡丹P. decomposita	3 413.24±43.53 a	2 105.67±68.39 ab	9.89±0.08 a	1.00±0.00 a	0.88±0.00 bc
紫斑牡丹P. rockii	2 803.58±609.36 ab	1 883.33±358.65 ab	9.82±0.35 a	1.00±0.00 a	0.90±0.03 bc
黄牡丹P. lutea	2 566.72±835.08 ab	1 627.33±443.25 ab	9.21±0.52 a	0.99±0.00 a	0.91±0.04 bc
卵叶牡丹P. qiui	1 860.23±527.97 bc	1 255.67±370.46 bc	8.24±1.03 ab	0.98±0.01 ab	0.94±0.02 ab
杨山牡丹P. ostii	3 627.01±524.86 a	2 208.00±204.96 a	9.90±0.31 a	1.00±0.00 a	0.86±0.02 c
狭叶牡丹P. potanini	3 344.83±363.80 ab	2 190.33±136.73 a	9.90±0.35 a	1.00±0.00 a	0.88±0.01b c
紫牡丹P. delavayi	596.59±172.05 c	505.00±140.52 c	5.82±0.69 c	0.90±0.04 c	0.98±0.01 a
稷山牡丹P. jishanensis	834.93±298.09 c	657.67±250.40 c	6.45±1.37 bc	0.93±0.04 bc	0.98±0.01 a
大花黄牡丹P. ludlowii	2 595.47±163.57 ab	1 845.00±55.30 ab	9.87±0.03 a	1.00±0.00 a	0.91±0.01 bc

Analysis of bacterial community characteristics in the rhizosphere soil of wild tree peony

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