Responses of plant, soil bacterial and fungal communities to grazing vary with pasture seasons and grassland types, northern Tibet

2020 ◽  
Author(s):  
Haorui Zhang ◽  
Gang Fu
Keyword(s):  
Fungal Communities ◽  
Northern Tibet ◽  
Plant Soil ◽  
Soil Bacterial ◽  
Grassland Types

scholarly journals Time after Time: Temporal Variation in the Effects of Grass and Forb Species on Soil Bacterial and Fungal Communities

mBio ◽  
2019 ◽  
Vol 10 (6) ◽  
Author(s):  
S. Emilia Hannula ◽  
Anna M. Kielak ◽  
Katja Steinauer ◽  
Martine Huberty ◽  
Renske Jongen ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Temporal Variation ◽  
Microbial Communities ◽  
Plant Species ◽  
Bacterial Communities ◽  
Temporal Dynamics ◽  
Fungal Communities ◽  
Plant Soil ◽  
Soil Bacterial ◽  
Over Time

ABSTRACT Microorganisms are found everywhere and have critical roles in most ecosystems, but compared to plants and animals, little is known about their temporal dynamics. Here, we investigated the temporal stability of bacterial and fungal communities in the soil and how their temporal variation varies between grasses and forb species. We established 30 outdoor mesocosms consisting of six plant monocultures and followed microbial communities for an entire year in these soils. We demonstrate that bacterial communities vary greatly over time and that turnover plays an important role in shaping microbial communities. We further show that bacterial communities rapidly shift from one state to another and that this is related to changes in the relative contribution of certain taxa rather than to extinction. Fungal soil communities are more stable over time, and a large part of the variation can be explained by plant species and by whether they are grasses or forbs. Our findings show that the soil bacterial community is shaped by time, while plant group and plant species-specific effects drive soil fungal communities. This has important implications for plant-soil research and highlights that temporal dynamics of soil communities cannot be ignored in studies on plant-soil feedback and microbial community composition and function. IMPORTANCE Our findings highlight how soil fungal and bacterial communities respond to time, season, and plant species identity. We found that succession shapes the soil bacterial community, while plant species and the type of plant species that grows in the soil drive the assembly of soil fungal communities. Future research on the effects of plants on soil microbes should take into consideration the relative roles of both time and plant growth on creating soil legacies that impact future plants growing in the soil. Understanding the temporal (in)stability of microbial communities in soils will be crucial for predicting soil microbial composition and functioning, especially as plant species compositions will shift with global climatic changes and land-use alterations. As fungal and bacterial communities respond to different environmental cues, our study also highlights that the selection of study organisms to answer specific ecological questions is not trivial and that the timing of sampling can greatly affect the conclusions made from these studies.

scholarly journals Effects of Rhododendron removal on soil bacterial and fungal communities in southern Appalachian forests

2021 ◽  
Vol 496 ◽  
pp. 119398
Author(s):  
Ernest D. Osburn ◽  
Chelcy F. Miniat ◽  
Katherine J. Elliott ◽  
J.E. Barrett
Keyword(s):  
Fungal Communities ◽  
Southern Appalachian ◽  
Appalachian Forests ◽  
Soil Bacterial

Characteristics of soil bacterial and fungal communities on interval seawater covering Linchang Island, China

2021 ◽  
Author(s):  
Yonggan Chen ◽  
Zhenhua Zhang ◽  
Haonan Zhang ◽  
Hongwei Luo ◽  
Zhen Li
Keyword(s):  
Fungal Communities ◽  
Soil Bacterial

scholarly journals Effects of chloropicrin fumigation combined with biochar on soil bacterial and fungal communities and Fusarium oxysporum

2021 ◽  
Vol 220 ◽  
pp. 112414
Author(s):  
Jiahong Zhu ◽  
Aocheng Cao ◽  
Jiajia Wu ◽  
Wensheng Fang ◽  
Bin Huang ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Fungal Communities ◽  
Soil Bacterial

scholarly journals The response of soil and phyllosphere microbial communities to repeated application of the fungicide iprodione: accelerated biodegradation or toxicity?

2020 ◽  
Vol 96 (6) ◽  
Author(s):  
A Katsoula ◽  
S Vasileiadis ◽  
M Sapountzi ◽  
Dimitrios G Karpouzas
Keyword(s):  
Microbial Communities ◽  
Agricultural Production ◽  
Soil Microorganisms ◽  
Amplicon Sequencing ◽  
Fungal Communities ◽  
Similar Response ◽  
Repeated Application ◽  
Plant Leaves ◽  
Soil System ◽  
Plant Soil

ABSTRACT Pesticides interact with microorganisms in various ways with the outcome being negative or positive for the soil microbiota. Pesticides' effects on soil microorganisms have been studied extensively in soil but not in other pesticides-exposed microbial habitats like the phyllosphere. We tested the hypothesis that soil and phyllosphere support distinct microbial communities, but exhibit a similar response (accelerated biodegradation or toxicity) to repeated exposure to the fungicide iprodione. Pepper plants received four repeated foliage or soil applications of iprodione, which accelerated its degradation in soil (DT50_1st = 1.23 and DT50_4th = 0.48 days) and on plant leaves (DT50_1st > 365 and DT50_4th = 5.95 days). The composition of the epiphytic and soil bacterial and fungal communities, determined by amplicon sequencing, was significantly altered by iprodione. The archaeal epiphytic and soil communities responded differently; the former showed no response to iprodione. Three iprodione-degrading Paenarthrobacter strains were isolated from soil and phyllosphere. They hydrolyzed iprodione to 3,5-dichloraniline via the formation of 3,5-dichlorophenyl-carboxiamide and 3,5-dichlorophenylurea-acetate, a pathway shared by other soil-derived arthrobacters implying a phylogenetic specialization in iprodione biotransformation. Our results suggest that iprodione-repeated application could affect soil and epiphytic microbial communities with implications for the homeostasis of the plant–soil system and agricultural production.

scholarly journals Divergence in bidirectional plant-soil feedbacks between montane annual and coastal perennial ecotypes of yellow monkeyflower (Mimulus guttatus)

2020 ◽  
Author(s):  
Mariah M. McIntosh ◽  
Lorinda Bullington ◽  
Ylva Lekberg ◽  
Lila Fishman
Keyword(s):  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Plant Performance ◽  
Fungal Communities ◽  
Mechanistic Study ◽  
List Type ◽  
Mimulus Guttatus ◽  
Plant Variation ◽  
Plant Soil ◽  
Soil Origin

SUMMARYUnderstanding the physiological and genetic mechanisms underlying plant variation in interactions with root-associated biota (RAB) requires a micro-evolutionary approach. We use locally adapted montane annual and coastal perennial ecotypes of Mimulus guttatus (yellow monkeyflower) to examine population-scale differences in plant-RAB-soil feedbacks.We characterized fungal communities for the two ecotypes in-situ and used a full-factorial greenhouse experiment to investigate the effects of plant ecotype, RAB source, and soil origin on plant performance and endophytic root fungal communities.The two ecotypes harbored different fungal communities and responsiveness to soil biota was highly context-dependent. Soil origin, RAB source, and plant ecotype all affected the intensity of biotic feedbacks on plant performance. Feedbacks were primarily negative, and we saw little evidence of local adaptation to either soils or RAB. Both RAB source and soil origin significantly shaped fungal communities in roots of experimental plants. Further, the perennial ecotype was more colonized by arbuscular mycorrhizal fungi (AMF) than the montane ecotype, and preferentially recruited home AMF taxa.Our results suggest life history divergence and distinct edaphic habitats shape plant responsiveness to RAB and influence specific associations with potentially mutualistic root endophytic fungi. Our results advance the mechanistic study of intraspecific variation in plant–soil–RAB interactions.

Responses of soil bacterial and fungal communities to the long-term monoculture of grapevine

2021 ◽  
Vol 105 (18) ◽  
pp. 7035-7050
Author(s):  
Qianwen Liu ◽  
Shixi Wang ◽  
Kun Li ◽  
Jun Qiao ◽  
Yinshan Guo ◽  
...  
Keyword(s):  
Fungal Communities ◽  
Soil Bacterial

scholarly journals Soil Bacterial and Fungal Communities Exhibit Distinct Long-Term Responses to Disturbance in Temperate Forests

2019 ◽  
Vol 10 ◽  
Author(s):  
Ernest D. Osburn ◽  
Steven G. McBride ◽  
Frank O. Aylward ◽  
Brian D. Badgley ◽  
Brian D. Strahm ◽  
...  
Keyword(s):  
Temperate Forests ◽  
Fungal Communities ◽  
Soil Bacterial
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