Dynamics of soil bacterial community diversity and composition at aggregate scales in a chronosequence of tea gardens

Wang, Shengqiang; Tang, Lili; Ye, Shaoming

doi:10.1016/j.catena.2021.105486

Cited by 5 publications

(7 citation statements)

References 61 publications

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“…PCoA showed that soil BCC in CFPs displayed a remarkable change along three axes in different sized aggregates (Figure 3 (Wang et al, 2021;Yang et al, 2018), or not (Biesgen et al, 2020;Wang et al, 2019) related to the aggregate size. Although it was widely believed that the OM concentration distribution in soil aggregates impacted the BCD distribution (Xu et al, 2021;Yang et al, 2018), this relationship between BCD and OM concentration seemed unlikely in this research.…”

Section: Bacterial Community Composition Of Soil Aggregatesmentioning

confidence: 99%

“…As the primary constituent of soil microorganisms, soil bacteria are not only involved in multiple soil ecologic processes, like organic matter (OM) decomposition (Yuan et al, 2022), nutrient circulation (Lin et al, 2021), and aggregate formation and stabilization (Wang et al, 2021), but also contribute in other ways to soil fertility and health and soil physico-chemical properties (Wang et al, 2020). In general, the soil bacterial community diversity (BCD) can be utilized as a sensitive index of soil quality change, and a decrease in this index indicates unfavourable impacts on the sustainability of soil resources (Viruel et al, 2022).…”

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confidence: 99%

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Soil bacterial community structure as affected by stand age in Chinese fir plantations: Insights at the aggregate scale

Liao

Wang

2022

Land Degrad Dev

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Exploring the variations of soil bacterial communities can contribute to the sustainability of Chinese fir plantations (CFPs). As the living environments of soil bacteria, soil aggregates significantly affect the diversity and composition regarding soil bacterial communities in CFPs. However, the distribution characteristics exhibited by soil bacteria at the aggregate scale are still not clear. In the present research, the diversity and composition regarding soil bacterial communities (using high-flux sequencing) in CFPs with diverse stand ages (3, 9, 17, and 26 years) were analyzed from the perspective of soil aggregates (>2, 1-2, 0.25-1, <0.25 mm) in Guangxi, China. According to the results, regardless of the aggregate size and the stand age, bacterial communities in soil were mainly composed of Proteobacteria, Chloroflexi, and Acidobacteria. During Chinese fir growth, the relative abundance (RA) of soil Proteobacteria first elevated and afterwards reduced, with the greatest level in the 17 years, while that of soil Chloroflexi exhibited an inverse trend. In addition, the RA of soil Acidobacteria increased over time. At the aggregate scale, the 17-year-old CFPs presented the greatest soil bacterial community diversity (based on the Chao 1 and Shannon indices). After 17 years, the destruction of coarse macroaggregates (>2 mm) could induce the reduction of soil bacterial community diversity, as coarse macroaggregates, taking up the majority of bulk soil, offered suitable environments for soil bacteria to survive and thrive. Moreover, soil organic C and total N concentrations and soil pH also significantly affected the diversity and composition regarding soil bacterial communities over time. Hence, the conservation of coarse macroaggregates after 17 years of Chinese fir growth is important to sustain the soil health as well as the bacterial community diversity in Guangxi, China.

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Section: Bacterial Community Composition Of Soil Aggregatesmentioning

confidence: 99%

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confidence: 99%

Soil bacterial community structure as affected by stand age in Chinese fir plantations: Insights at the aggregate scale

Liao

Wang

2022

Land Degrad Dev

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“…Basidiomycota, such as Saitozyma, Russula and Hygrocybe commonly found in tea gardens, are well known to colonize lignin-rich surfaces and likely play significant roles in the degradation of lignin-rich plant litters (Guo et al, 2018;Kui et al, 2021), transforming these substrates to provide carbon and nitrogen as well as other nutrients for plant growth (Li et al, 2020). In addition, Penicillium, Trichoderma and Pseudogymnoascus are prominent members of the Ascomycota predominantly found in tea gardens (Kui et al, 2021;Wang et al, 2021;. The abundance of the Ascomycota among soil fungal communities in tea gardens is perhaps because Ascomycota have been able to successfully evolve mechanisms to dominate soils globally (Egidi et al, 2019).…”

Section: Fungal Communities In Tea Gardens Soilsmentioning

confidence: 99%

“…For example, beneficial microbes such as Bacillus spp. and Actinomycetes can help tea plants resist a range of fungal diseases, i.e., leaf blight and scab disease (Wang et al, 2021). Arbuscular AMF colonization in the tea rhizosphere, e.g., by Glomus, Rhizophagus, and Acaulospora, likely contributes to enhanced disease resistance in host tea plants.…”

Section: Functions Of Soil Microorganisms In Tea Gardensmentioning

confidence: 99%

Understanding and exploring the diversity of soil microorganisms in tea (Camellia sinensis) gardens: toward sustainable tea production

Jibola-Shittu,

Heng,

Keyhani

et al. 2024

Front. Microbiol.

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Leaves of Camellia sinensis plants are used to produce tea, one of the most consumed beverages worldwide, containing a wide variety of bioactive compounds that help to promote human health. Tea cultivation is economically important, and its sustainable production can have significant consequences in providing agricultural opportunities and lowering extreme poverty. Soil parameters are well known to affect the quality of the resultant leaves and consequently, the understanding of the diversity and functions of soil microorganisms in tea gardens will provide insight to harnessing soil microbial communities to improve tea yield and quality. Current analyses indicate that tea garden soils possess a rich composition of diverse microorganisms (bacteria and fungi) of which the bacterial Proteobacteria, Actinobacteria, Acidobacteria, Firmicutes and Chloroflexi and fungal Ascomycota, Basidiomycota, Glomeromycota are the prominent groups. When optimized, these microbes’ function in keeping garden soil ecosystems balanced by acting on nutrient cycling processes, biofertilizers, biocontrol of pests and pathogens, and bioremediation of persistent organic chemicals. Here, we summarize research on the activities of (tea garden) soil microorganisms as biofertilizers, biological control agents and as bioremediators to improve soil health and consequently, tea yield and quality, focusing mainly on bacterial and fungal members. Recent advances in molecular techniques that characterize the diverse microorganisms in tea gardens are examined. In terms of viruses there is a paucity of information regarding any beneficial functions of soil viruses in tea gardens, although in some instances insect pathogenic viruses have been used to control tea pests. The potential of soil microorganisms is reported here, as well as recent techniques used to study microbial diversity and their genetic manipulation, aimed at improving the yield and quality of tea plants for sustainable production.

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“…This region is dominated by the subtropical monsoon climate, with an average annual precipitation and temperature of 1304 mm and 21.6 • C, respectively. The exposed soil layer is mainly generated in the Mesozoic, with the latosol agrotype [18] and loamy clay texture. As early as the 1960s, large amounts of abandoned lands have been utilized to plant tea, because tea shows a relatively high economic value.…”

Section: Location Of the Experimentsmentioning

confidence: 99%

Soil Aggregate-Associated Carbon Fraction Dynamics during the Process of Tea (Camellia sinensis L.) Planting in Southern Guangxi, China

Zhang

et al. 2021

Forests

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Revealing the variation in soil aggregate-associated organic carbon (Corg) in tea plantations of various planting ages is crucial to shed more light on the accumulation and decomposition of soil Corg in the tea-planting period. This study measured the concentrations of soil Corg, active carbon (Cact), and recalcitrant carbon (Crec) in different-sized aggregates obtained from tea plantations of various planting ages (8, 17, 25, and 43 years old) at the soil depths of 0–20 and 20–40 cm in southern Guangxi, China. According to the wet-sieving approach, soil aggregates were classified as macro- (>0.25 mm) and micro- (<0.25 mm) aggregates, and the former were further divided into coarse (>2 mm), medium (2–1 mm), and fine (1–0.25 mm) fractions. Based on the mean weight diameter (MWD), the stability of soil aggregates was the highest in the 17-year-old tea plantations, and it was closely related to the concentration of soil Cact (0–20 cm: R2 = 0.9744, p < 0.05; 20–40 cm: R2 = 0.8951, p < 0.05), but not Corg (0–20 cm: R2 = 0.1532, p > 0.05; 20–40 cm: R2 = 0.4538, p > 0.05), during the tea-planting process. In the 0–20 and 20–40 cm soil layers, the coarse and medium macro-aggregates had higher concentrations of Corg, Cact, and Crec, regardless of the tea-planting age; meanwhile, the soil Cact/Crec ratio, indicating the Corg availability, increased as aggregate size increased, implying that the soil Corg was younger and more labile in coarse macro-aggregates relative to finer aggregates. Moreover, the tea-planting age significantly affected the Corg, Cact, and Crec reserves in both soil layers. To be specific, continuous tea planting facilitated the accumulation of soil Corg and Crec, but their reserves’ increase rates decreased over time; meanwhile, the soil Cact reserve increased during the early (from 8 to 17 years) tea-planting stage and later decreased. Therefore, during the middle (from 17 to 25 years) and late (from 25 to 43 years) tea-planting stages, maintaining the soil as an Cact pool plays a vital role in facilitating the formation and stabilization of soil aggregates in southern Guangxi, China.

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Dynamics of soil bacterial community diversity and composition at aggregate scales in a chronosequence of tea gardens

Cited by 5 publications

References 61 publications

Soil bacterial community structure as affected by stand age in Chinese fir plantations: Insights at the aggregate scale

Soil bacterial community structure as affected by stand age in Chinese fir plantations: Insights at the aggregate scale

Understanding and exploring the diversity of soil microorganisms in tea (Camellia sinensis) gardens: toward sustainable tea production

Soil Aggregate-Associated Carbon Fraction Dynamics during the Process of Tea (Camellia sinensis L.) Planting in Southern Guangxi, China

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