Soil Microbial Community Structure and Diversity in Cut Flower Cultures Under Conventional and Ecological Management

Santamaría, Johanna; Parrado, Carmen Alicia; López, Liliana

doi:10.1590/18069657rbcs20170016

Cited by 7 publications

(5 citation statements)

References 22 publications

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“…Existing studies have shown that soil microbial diversity differed significantly among different grassland community type ( Qi et al, 2021 ), and the more suitable the habitat conditions (High total nitrogen and organic carbon content and suitable soil pH, etc. ), the higher the diversity was Santamaría et al ( Santamaría et al, 2018 ). Besides, the diversity of different soil bacterial communities was mainly influenced by pH, organic matter, alkaline nitrogen and effective phosphorus content ( Dunbar et al, 2002 ; Roy et al, 2020 ; Jiang et al, 2021 ), while soil pH and organic matter content played a decisive role in the structure of different soil fungal communities ( Guo et al, 2021 ; Shang et al, 2021 ).…”

Section: Introductionmentioning

confidence: 97%

Changes in grassland soil types lead to different characteristics of bacterial and fungal communities in Northwest Liaoning, China

Ren

et al. 2023

Front. Microbiol.

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IntroductionSoil microbial communities are critical in regulating grassland biogeochemical cycles and ecosystem functions, but the mechanisms of how environmental factors affect changes in the structural composition and diversity of soil microbial communities in different grassland soil types is not fully understood in northwest Liaoning, China.MethodsWe investigated the characteristics and drivers of bacterial and fungal communities in 4 grassland soil types with 11 sites across this region using high-throughput Illumina sequencing.Results and DiscussionActinobacteria and Ascomycota were the dominant phyla of bacterial and fungal communities, respectively, but their relative abundances were not significantly different among different grassland soil types. The abundance, number of OTUs, number of species and diversity of both bacterial and fungal communities in warm and temperate ecotone soil were the highest, while the warm-temperate shrub soil had the lowest microbial diversity. Besides, environmental factors were not significantly correlated with soil bacterial Alpha diversity index. However, there was a highly significant negative correlation between soil pH and Shannon index of fungal communities, and a highly significant positive correlation between plant cover and Chao1 index as well as Observed species of fungal communities. Analysis of similarities showed that the structural composition of microbial communities differed significantly among different grassland soil types. Meanwhile, the microbial community structure of temperate steppe-sandy soil was significantly different from that of other grassland soil types. Redundancy analysis revealed that soil total nitrogen content, pH and conductivity were important influencing factors causing changes in soil bacterial communities, while soil organic carbon, total nitrogen content and conductivity mainly drove the differentiation of soil fungal communities. In addition, the degree of connection in the soil bacterial network of grassland was much higher than that in the fungal network and soil bacterial and fungal communities were inconsistently limited by environmental factors. Our results showed that the microbial community structure, composition and diversity of different grassland soil types in northwest Liaoning differed significantly and were significantly influenced by environmental factors. Microbial community structure and the observation of soil total nitrogen and organic carbon content can predict the health changes of grassland ecosystems to a certain extent.

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Section: Introductionmentioning

confidence: 97%

Changes in grassland soil types lead to different characteristics of bacterial and fungal communities in Northwest Liaoning, China

Ren

et al. 2023

Front. Microbiol.

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“…The types of operations in farmland, such as effective management, the tillage regime, and fertilization practice, have been found to have an impact on soil microorganisms. The microbial community structure and diversity of three different management practices (conventional, ecological, and intermediate) of cut flower cultures were investigated, and it was found that the bacterial community structure differed considerably among the three management practices, indicating that it can effectively monitor the soil quality change by different management practices of cut flower cultures [ 68 ]. In addition to management practices, the tillage regime has also been found to influence the soil microbial community.…”

Section: Microbial Indicators In Artificial Ecosystemsmentioning

confidence: 99%

Development of Microbial Indicators in Ecological Systems

Wang

Zhang

et al. 2022

IJERPH

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Indicators can monitor ecological environment changes and help maintain ecological balance. Bioindicators are divided into animal, plant, and microbial indicators, of which animal and plant indicators have previously been the most researched, but microbial indicators have drawn attention recently owing to their high sensitivity to the environment and their potential for use in monitoring environmental changes. To date, reviews of studies of animals and plants as indicator species have frequently been conducted, but reviews of research on microorganisms as indicator species have been rare. In this review, we summarize and analyze studies using microorganisms as indicator species in a variety of ecosystems, such as forests, deserts, aquatic and plateau ecosystems, and artificial ecosystems, which are contained in wetlands, farmlands, and mining ecosystems. This review provides useful information for the further use of microorganisms as indicators to reflect the changes in different environmental ecosystems.

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“…PCR cycling temperatures for the 433 bp fragment amplification with the 968F and 1401R primers were as follows: 94 °C for 3 min (1 cycle); 94 °C for 50 s, 48 °C for 20 s, and 72 °C for 45 s (30 cycles); followed by a final step at 72 °C for 5 min. The DGGE analysis of the 433 pb PCR products was performed according to Santamaría et al [38], using a different denaturing gradient (37 % to 65 %) and an electrophoresis run time of 17 h at 35 V and 60 °C.…”

Section: Dna Extraction and Molecular Analysismentioning

confidence: 99%

Gut bacteria comparison between wild and captive neotropical otters

Santamaría-Vanegas

Rodríguez-Rey

2020

Universitas Scientiarum

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The neotropical otter (Lontra longicaudis) is considered a flagship species for the conservation of the ecosystems in which it resides and is currently in a vulnerable state. As a conservation strategy for this species, rehabilitation, breeding, and reintroduction programs of captive individuals have been proposed. However, it is likely that the environment and feeding conditions in captivity result in gut microbial communities that differ from those in wild animals. Gut microbial communities have an important role in the physiological performance of an animal. To determine differences between gut microbial communities of otters in wild and captive living conditions, the structure and diversity of their gut bacterial communities were determined using 16S rDNA molecular markers. Total DNA was isolated from fecal samples of wild animals from the La Vieja River basin and from captive animals in the Cali Zoo. As expected, the gut bacterial communities of captive animals converged to a more similar structure, and their bacterial diversity was significantly lower than that found in wild animals.

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Soil Microbial Community Structure and Diversity in Cut Flower Cultures Under Conventional and Ecological Management

Cited by 7 publications

References 22 publications

Changes in grassland soil types lead to different characteristics of bacterial and fungal communities in Northwest Liaoning, China

Changes in grassland soil types lead to different characteristics of bacterial and fungal communities in Northwest Liaoning, China

Development of Microbial Indicators in Ecological Systems

Gut bacteria comparison between wild and captive neotropical otters

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