Long-term nitrogen fertilization impacts soil fungal and bacterial community structures in a dryland soil of Loess Plateau in China

Liu, Jinshan; Zhang, Xiang; Wang, Hui; Hui, Xiaoli; Wang, Zhaohui; Qiu, Weihong

doi:10.1007/s11368-017-1862-6

Cited by 34 publications

(12 citation statements)

References 51 publications

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“…The phyla of Ascomycota, Proteobacteria, and Actinobacteria among these bacterial and fungal communities were dominant, and this relationship has been found in other soil with long‐term N fertilizer application (J. Liu et al., 2018). These three phyla also occupied most of the nodes in the network.…”

Section: Discussionsupporting

confidence: 53%

Microbial communities in paddy soil as influenced by nitrogen fertilization and water regimes

Sun

Wang

et al. 2021

Agronomy Journal

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Plastic film mulching (PM) cultivation is an important measure to alleviate the seasonal shortage of water resources. Long‐term nitrogen (N) fertilization under PM cultivation may be more conducive to enhance the ecological relationship between microbial communities involved in nutrient cycling. In this study, the effects of long‐term application of chemical N fertilizer (common prilled urea [PU]) or no N fertilization on the microbial community composition under the traditional flooding (TF) cultivation and PM cultivation were comparatively analyzed. The results demonstrated that water regimes had significant effects on all soil properties except alkali‐hydrolyzable N. Compared with TF cultivation, PM cultivation increased pH and available phosphorus (AP) by 1.14 and 13.67%, respectively, and decreased organic matter and available potassium (AK) by 6.07 and 8.39%, respectively. Nitrogen fertilization levels had significant effects on soil AP and AK, with increases of 1.39 and 1.82 mg kg−1 in PU treatment compared with CK, respectively. Neither water regime nor N fertilization level had a significant influence on soil microbial richness (Chao index) and diversity (Shannon index). However, water regimes played critical roles in driving microbial community changes. Network analysis showed that the microbial community had nonrandom co‐occurrence pattern. Myrmecridium, Defluviicoccus, Emericellopsis, Pseudarthrobacter, and Syntrophorhabdus were the keystone taxa. A higher relative abundance of Defluviicoccus, Emericellopsis, and Syntrophorhabdus was observed in the CKPM treatment, and a higher relative abundance of Myrmecridium and Pseudarthrobacter was observed in the PUPM treatment. Therefore, PM cultivation is an effective measure to improve potential beneficial taxa of soil microbial communities.

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Section: Discussionsupporting

confidence: 53%

Microbial communities in paddy soil as influenced by nitrogen fertilization and water regimes

Sun

Wang

et al. 2021

Agronomy Journal

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“…It demonstrated the interaction between endophytic fungal community, root factors, and soil factors. Thus, it indicated that fungal composition could be altered by altering soil factors ( Liu et al, 2018 ), promoting the accumulation of effective ingredients in plants ( Han et al, 2013 ). Xie et al (2019) showed that in medicinal licorice, P addition and arbuscular mycorrhizal (AM) inoculation improved plant growth and facilitated glycyrrhizic acid and liquiritin accumulation in Glycyrrhiza uralensis .…”

Section: Discussionmentioning

confidence: 99%

Differences in the endophytic fungal community and effective ingredients in root of three Glycyrrhiza species in Xinjiang, China

Dang

Zhang

Wang

et al. 2021

PeerJ

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Background Endophytic fungi influence the quality and quantity of the medicinal plant’s bioactive compounds through specific fungus-host interactions. Nevertheless, due to the paucity of information, the composition of endophytic fungal communities and the mechanism by which effective ingredients regulate endophytic fungal communities in roots remains unclear. Methods In this study, we collected root and soil samples (depth range: 0–20, 20–40, and 40–60 cm) of three Glycyrrhiza species (Glycyrrhiza uralensis, Glycyrrhiza inflata, and Glycyrrhiza glabra). Glycyrrhizic acid and liquiritin content were determined using high-performance liquid chromatography (HPLC), and total flavonoid content was determined using ultraviolet spectrophotometry. High-throughput sequencing technology was employed to explore the composition and diversity of the endophytic fungal community in different root segments of three Glycyrrhiza species. Furthermore, soil samples were subjected to physicochemical analyses. Results We observed that the liquiritin content was not affected by the root depth (0–20 cm, 20–40 cm, and 40–60 cm). Still, it was significantly affected by the Glycyrrhiza species (Glycyrrhiza uralensis, Glycyrrhiza inflata, Glycyrrhiza glabra) (P < 0.05). In Glycyrrhiza root, a total of eight phyla and 140 genera were annotated so far, out of which Ascomycota and Basidiomycota phyla, and the Fusarium, Paraphoma, and Helminthosporium genera were found to be significantly dominant. Spearman correlation analysis revealed that liquiritin content was accountable for the differences in the diversity of the endophytic fungal community. Furthermore, distance-based redundancy analysis (db-RDA) showed that physicochemical properties of the soil (available potassium and ammonium nitrogen) and the root factors (liquiritin and water content) were the main contributing factors for the variations in the overall structure of the endophytic fungal community. Our results showed that the effective ingredients of Glycyrrhiza root and physicochemical properties of the soil regulated the endophytic fungal community composition and medicinal licorice diversity.

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“…8 and Table 4), which showed that there is an interaction among endophytic fungal community, root and soil factor. This suggests that we may be able to alter the fungal composition by altering soil factors [73], thereby promoting the accumulation of bioactive compounds in plants [74]. In the case of medicinal licorices, Wei Xie et al [75] shown that P addition and arbuscular mycorrhizal (AM) inoculation could improve plant growth and facilitated glycyrrhizic acid and liquiritin accumulation in Glycyrrhiza uralensis.…”

Section: Discussionmentioning

confidence: 99%

Root-associated endophytic fungal community composition and structure of three medicinal licorices in Xinjiang

Dang¹,

Wang²,

Li³

et al. 2020

Preprint

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The purpose of this study was to explore the diversity and composition of endophytic fungal community in the root of three medicinal licorices, and learn more about its biological characteristics by analyzing its interaction with soil and root factors. A total of 2,118,633 effective sequences and 1,063 effective operational taxonomic units (OTUs) with 97% identity were obtained by high-throughput sequencing among 27 samples. In this study, a total of 8 phyla and 140 genera were annotated, among them, the phylum Ascomycota and Basidiomycota, and the genera Fusarium, Paraphoma and Helminthosporium were significantly dominant in the 27 samples. Wilcoxon rank sum test showed that the Shannon index was significantly different distribution between Glycyrrhiza uralensis and Glycyrrhiza inflata, especially 0-20cm at the root depth, the Chao1 index in Glycyrrhiza inflate was significantly affected by root depth, and there were significant differences in beta diversity between Glycyrrhiza uralensis and Glycyrrhiza inflata. Distance-based redundancy analysis (db-RDA) showed that soil physicochemical properties (available potassium and ammonium nitrogen), and the root factor (liquiritin and water content) were the main contributing factors to the variations in the overall structure of endophytic fungal community in this study. This study provides useful information for formulating strategies to improve the quantity and quality of medicinal licorices.

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Long-term nitrogen fertilization impacts soil fungal and bacterial community structures in a dryland soil of Loess Plateau in China

Cited by 34 publications

References 51 publications

Microbial communities in paddy soil as influenced by nitrogen fertilization and water regimes

Microbial communities in paddy soil as influenced by nitrogen fertilization and water regimes

Differences in the endophytic fungal community and effective ingredients in root of three Glycyrrhiza species in Xinjiang, China

Root-associated endophytic fungal community composition and structure of three medicinal licorices in Xinjiang

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