Microbial diversity patterns in the root zone of two Meconopsis plants on the Qinghai-Tibet Plateau

In the extreme alpine climate of the Qinghai-Tibet Plateau (QTP), plant growth and reproduction are limited by extremely cold temperatures, low soil moisture, and scarce nutrient availability. The root-associated microbiome indirectly promotes plant growth and plays a role in the fitness of plants o...

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Main Authors: Shuting Chen, Pengxi Cao, Ting Li, Yuyan Wang, Xing Liu
Format: Article
Language:English
Published: PeerJ Inc. 2023-05-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/15361.pdf
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author Shuting Chen
Pengxi Cao
Ting Li
Yuyan Wang
Xing Liu
author_facet Shuting Chen
Pengxi Cao
Ting Li
Yuyan Wang
Xing Liu
author_sort Shuting Chen
collection DOAJ
description In the extreme alpine climate of the Qinghai-Tibet Plateau (QTP), plant growth and reproduction are limited by extremely cold temperatures, low soil moisture, and scarce nutrient availability. The root-associated microbiome indirectly promotes plant growth and plays a role in the fitness of plants on the QTP, particularly in Tibetan medicinal plants. Despite the importance of the root-associated microbiome, little is known about the root zone. This study used high-throughput sequencing to investigate two medicinal Meconopsis plants, M. horridula and M. integrifolia, to determine whether habitat or plant identity had a more significant impact on the microbial composition of the roots. The fungal sequences were obtained using ITS-1 and ITS-2, and bacterial sequences were obtained using 16S rRNA. Different microbial patterns were observed in the microbial compositions of fungi and bacteria in the root zones of two Meconopsis plants. In contrast to bacteria, which were not significantly impacted by plant identity or habitat, the fungi in the root zone were significantly impacted by plant identity, but not habitat. In addition, the synergistic effect was more significant than the antagonistic effect in the correlation between fungi and bacteria in the root zone soil. The fungal structure was influenced by total nitrogen and pH, whereas the structure of bacterial communities was influenced by soil moisture and organic matter. Plant identity had a greater influence on fungal structure than habitat in two Meconopsis plants. The dissimilarity of fungal communities suggests that more attention should be paid to fungi-plant interactions.
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spelling doaj.art-765669dce7144588805f52bf177b4ce92023-12-03T01:01:10ZengPeerJ Inc.PeerJ2167-83592023-05-0111e1536110.7717/peerj.15361Microbial diversity patterns in the root zone of two Meconopsis plants on the Qinghai-Tibet PlateauShuting Chen0Pengxi Cao1Ting Li2Yuyan Wang3Xing Liu4Laboratory of Adaptation and Evolution of Plateau Biota to Extreme Environments, School of Ecology and Environment, Tibet University, Lhasa, ChinaLaboratory of Adaptation and Evolution of Plateau Biota to Extreme Environments, School of Ecology and Environment, Tibet University, Lhasa, ChinaLaboratory of Adaptation and Evolution of Plateau Biota to Extreme Environments, School of Ecology and Environment, Tibet University, Lhasa, ChinaLaboratory of Adaptation and Evolution of Plateau Biota to Extreme Environments, School of Ecology and Environment, Tibet University, Lhasa, ChinaLaboratory of Adaptation and Evolution of Plateau Biota to Extreme Environments, School of Ecology and Environment, Tibet University, Lhasa, ChinaIn the extreme alpine climate of the Qinghai-Tibet Plateau (QTP), plant growth and reproduction are limited by extremely cold temperatures, low soil moisture, and scarce nutrient availability. The root-associated microbiome indirectly promotes plant growth and plays a role in the fitness of plants on the QTP, particularly in Tibetan medicinal plants. Despite the importance of the root-associated microbiome, little is known about the root zone. This study used high-throughput sequencing to investigate two medicinal Meconopsis plants, M. horridula and M. integrifolia, to determine whether habitat or plant identity had a more significant impact on the microbial composition of the roots. The fungal sequences were obtained using ITS-1 and ITS-2, and bacterial sequences were obtained using 16S rRNA. Different microbial patterns were observed in the microbial compositions of fungi and bacteria in the root zones of two Meconopsis plants. In contrast to bacteria, which were not significantly impacted by plant identity or habitat, the fungi in the root zone were significantly impacted by plant identity, but not habitat. In addition, the synergistic effect was more significant than the antagonistic effect in the correlation between fungi and bacteria in the root zone soil. The fungal structure was influenced by total nitrogen and pH, whereas the structure of bacterial communities was influenced by soil moisture and organic matter. Plant identity had a greater influence on fungal structure than habitat in two Meconopsis plants. The dissimilarity of fungal communities suggests that more attention should be paid to fungi-plant interactions.https://peerj.com/articles/15361.pdfMicrobial communityBacterial communitiesFungal communitiesSoil propertiesCommunity ecologyMicrobial structure
spellingShingle Shuting Chen
Pengxi Cao
Ting Li
Yuyan Wang
Xing Liu
Microbial diversity patterns in the root zone of two Meconopsis plants on the Qinghai-Tibet Plateau
PeerJ
Microbial community
Bacterial communities
Fungal communities
Soil properties
Community ecology
Microbial structure
title Microbial diversity patterns in the root zone of two Meconopsis plants on the Qinghai-Tibet Plateau
title_full Microbial diversity patterns in the root zone of two Meconopsis plants on the Qinghai-Tibet Plateau
title_fullStr Microbial diversity patterns in the root zone of two Meconopsis plants on the Qinghai-Tibet Plateau
title_full_unstemmed Microbial diversity patterns in the root zone of two Meconopsis plants on the Qinghai-Tibet Plateau
title_short Microbial diversity patterns in the root zone of two Meconopsis plants on the Qinghai-Tibet Plateau
title_sort microbial diversity patterns in the root zone of two meconopsis plants on the qinghai tibet plateau
topic Microbial community
Bacterial communities
Fungal communities
Soil properties
Community ecology
Microbial structure
url https://peerj.com/articles/15361.pdf
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