Bacterial communities that metabolize 4-Hydroxybenzoic acid in grape (Vitis vinifera L.) rhizosphere soil

Wang, B.; Zhou, Tong; Li, K.; Guo, Xiuzhi; Guo, Yashuang; Liu, Z. D.; Xie, Haibo

doi:10.26651/allelo.j/2019-46-1-1197

Cited by 9 publications

(10 citation statements)

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“…Notably, after 4-HBA treatment, the relative abundance of Azotobacter in the 12 C-and 13 C-labeled fractions increased by more than 100-fold (Supplementary Figure 2B and Supplementary Table 4). This is consistent with our previous findings that Azotobacter abundance in the 13 Clayer was significantly increased after treating grapevine rhizosphere soil with 13 C-labeled 4-HBA (Wang et al, 2019a), indicating that Azotobacter can utilize 4-HBA in addition to other autotoxins (Wang et al, 2021b). Although the relative abundance of Actinobacteria was higher in T-13 C than in CK-13 C, the genera Streptomyces were less abundant in T-13 C than in CK-13 C. Streptomyces is the largest genus (more than 500 species) within Actinobacteria (Viaene et al, 2016) and produces antibiotics (Toumatia et al, 2015) and 10.3389/fmicb.2022.953424 synthesizes plant growth hormones such as auxin and cytokinin (Palaniyandi et al, 2013); therefore, it is a novel plant growthpromoting rhizobacterium (PGPR) (Lehr et al, 2007(Lehr et al, , 2008Schrey and Tarkka, 2008).…”

Section: Autotoxin Treatment Changed the Bacterial And Fungal Communi...supporting

confidence: 93%

“…Our previous studies have shown that the rhizosphere soil microbial community changed significantly after long-term grapevine continuous cropping ( Liu et al, 2021 ) and identified autotoxins such as ρ-hydroxybenzoic acid (4-HBA) from grapevine root exudates and rhizosphere soil ( Guo et al, 2010 ; Li et al, 2011 ). Exogenous 4-HBA is quickly adsorbed by soil, transformed by soil microorganisms ( Wang et al, 2017a ), changes the soil microbiome diversity ( Wang et al, 2019a ), and alter the root secretion characteristics ( Liu et al, 2019 ). Root exudates serves as an energy and nutrient resource for microorganisms and plays an important role in regulating the dynamics of microbial populations ( Bais et al, 2006 ; Olanrewaju et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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Autotoxin affects the rhizosphere microbial community structure by influencing the secretory characteristics of grapevine roots

et al. 2022

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Autotoxins secreted by roots into the soil can trigger rhizosphere microecological imbalances and affect root secretory properties resulting in conditions such as replanting disease. However, information on the effect of autotoxins on root secretion characteristics and regulation of the composition of rhizosphere microorganisms by altered root exudates is limited. In this study, autotoxin ρ-hydroxybenzoic acid (4-HBA) was added to the soil of potted grapevine seedlings, CO2 pulse-labeling, and DNA stable isotope probing were used to track the rhizosphere microbiome that assimilates root exudates. Bacterial and fungal microbiomes that assimilated plant-derived carbon were identified by high-throughput sequencing. Results showed that 4-HBA treatment altered bacterial and fungal communities in 13C-labeled organisms, with a lower abundance of beneficial bacteria (e.g., Gemmatimonas, Streptomyces, and Bacillus) and a higher abundance of potential pathogen fungi (e.g., Fusarium, Neocosmospora, Gibberella, and Fusicolla) by changing the composition of root exudates. The exogenous addition of upregulated compound mixtures of root exudates reduced the abundance of beneficial bacterial Bacillus and increased the abundance of potential pathogen fungi Gibberella. These results suggest that 4-HBA can alter root secretion properties and altered root exudates may enrich certain potential pathogens and reduce certain beneficial bacteria, thereby unbalancing the structure of the rhizosphere microbial community.

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Section: Autotoxin Treatment Changed the Bacterial And Fungal Communi...supporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Autotoxin affects the rhizosphere microbial community structure by influencing the secretory characteristics of grapevine roots

et al. 2022

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“…At 240 h (48 h after the last treatment), the rhizosphere soil was collected from the grapevine cuttings. The rhizosphere soil was sampled as previously described ( Wang et al, 2015 ). The soil was passed through a 40-mesh sieve and kept at −70°C for DNA extraction.…”

Section: Methodsmentioning

confidence: 99%

Comparative metagenomic analysis reveals rhizosphere microbial community composition and functions help protect grapevines against salt stress

Wang

et al. 2023

Front. Microbiol.

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IntroductionSoil salinization is a serious abiotic stress for grapevines. The rhizosphere microbiota of plants can help counter the negative effects caused by salt stress, but the distinction between rhizosphere microbes of salt-tolerant and salt-sensitive varieties remains unclear.MethodsThis study employed metagenomic sequencing to explore the rhizosphere microbial community of grapevine rootstocks 101-14 (salt tolerant) and 5BB (salt sensitive) with or without salt stress.Results and DiscussionCompared to the control (treated with ddH2O), salt stress induced greater changes in the rhizosphere microbiota of 101-14 than in that of 5BB. The relative abundances of more plant growth-promoting bacteria, including Planctomycetes, Bacteroidetes, Verrucomicrobia, Cyanobacteria, Gemmatimonadetes, Chloroflexi, and Firmicutes, were increased in 101-14 under salt stress, whereas only the relative abundances of four phyla (Actinobacteria, Gemmatimonadetes, Chloroflexi, and Cyanobacteria) were increased in 5BB under salt stress while those of three phyla (Acidobacteria, Verrucomicrobia, and Firmicutes) were depleted. The differentially enriched functions (KEGG level 2) in 101-14 were mainly associated with pathways related to cell motility; folding, sorting, and degradation functions; glycan biosynthesis and metabolism; xenobiotics biodegradation and metabolism; and metabolism of cofactors and vitamins, whereas only the translation function was differentially enriched in 5BB. Under salt stress, the rhizosphere microbiota functions of 101-14 and 5BB differed greatly, especially pathways related to metabolism. Further analysis revealed that pathways associated with sulfur and glutathione metabolism as well as bacterial chemotaxis were uniquely enriched in 101-14 under salt stress and therefore might play vital roles in the mitigation of salt stress on grapevines. In addition, the abundance of various sulfur cycle-related genes, including genes involved in assimilatory sulfate reduction (cysNC, cysQ, sat, and sir), sulfur reduction (fsr), SOX systems (soxB), sulfur oxidation (sqr), organic sulfur transformation (tpa, mdh, gdh, and betC), increased significantly in 101-14 after treatment with NaCl; these genes might mitigate the harmful effects of salt on grapevine. In short, the study findings indicate that both the composition and functions of the rhizosphere microbial community contribute to the enhanced tolerance of some grapevines to salt stress.

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“…In addition, when the Janus film is chosen as the substrate, the process of penetrating the film still requires a certain amount of time, although the asymmetric wettability on both sides of the film will generate a wettability gradient to facilitate the unidirectional transmission of droplets. However, due to its high affinity with water, the water‐loving slippery rough surface has excellent water absorption performance and lubrication characteristics, which will further speed up water transport [ 139,140 ] (Figure 17c). After optimization, the fog collection efficiency of SRS + SHB‐HL CCN system can reach 8.83 g h −1 .…”

Section: Bionic Materials Combining a Variety Of Biological Character...mentioning

confidence: 99%

Special Wettability Materials Inspired by Multiorganisms for Fog Collection

Mei

Guo

2022

Adv Materials Inter

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At present, the shortage of fresh water resources has become a serious problem that human beings have to face. Especially in some arid areas, water shortage has threatened human existence. The discovery that some organisms can survive in extremely arid areas by trapping water in fog has inspired research into bionic water harvesting materials. The emergence of such biomimetic materials offers a potential strategy for tackling the freshwater crisis. This paper reviews the mechanism of some organisms’ water collecting function and special liquid handling ability and the research progress of biomimetic fog‐collecting materials. In addition, the bionic water collecting materials which creatively combine the advantages of various organisms are introduced in detail. It is hoped that these innovative combinations can bring inspiration to the design of fog collecting materials in the future. Finally, the research and development prospects of materials inspired by multiorganisms are prospected.

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Bacterial communities that metabolize 4-Hydroxybenzoic acid in grape (Vitis vinifera L.) rhizosphere soil

Cited by 9 publications

References 0 publications

Autotoxin affects the rhizosphere microbial community structure by influencing the secretory characteristics of grapevine roots

Autotoxin affects the rhizosphere microbial community structure by influencing the secretory characteristics of grapevine roots

Comparative metagenomic analysis reveals rhizosphere microbial community composition and functions help protect grapevines against salt stress

Special Wettability Materials Inspired by Multiorganisms for Fog Collection

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