Impact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China

In nature, protists directly participate in litter decomposition and indirectly affect litter decomposition processes by means of their influence on litter microbial communities. To date, relevant studies on litter microbial communities have primarily focused on bacteria and fungi, while relatively...

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Autores principales:	Tong Jia, Xiaoxia Liang, Tingyan Guo, Baofeng Chai
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	copper tailings dam litter protozoan community diversity <i>Bothriochloa ischaemum</i> <i>Imperata cylindrica</i> Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/d707bed3cbe84fcfbf265efe62402e8d
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id	oai:doaj.org-article:d707bed3cbe84fcfbf265efe62402e8d
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spelling	oai:doaj.org-article:d707bed3cbe84fcfbf265efe62402e8d2021-11-25T18:24:34ZImpact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China10.3390/microorganisms91122502076-2607https://doaj.org/article/d707bed3cbe84fcfbf265efe62402e8d2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-2607/9/11/2250https://doaj.org/toc/2076-2607In nature, protists directly participate in litter decomposition and indirectly affect litter decomposition processes by means of their influence on litter microbial communities. To date, relevant studies on litter microbial communities have primarily focused on bacteria and fungi, while relatively little attention has been paid to the characteristics of protozoan communities within damaged ecosystems. Two dominant grass species (<i>Bothriochloa ischaemum</i> and <i>Imperata cylindrica</i>) were selected from China’s “Eighteenth” River tailings dam to explore protozoan community composition and diversity in a degraded mining area and to clarify the influence among key ecological factors and protozoan community characteristics in litter. High-throughput sequencing was used to analyze protozoan community composition and diversity, while correlation analysis was used to explore the relationships between protozoan communities and litter nutrient characteristics, including associative enzyme degradation. Although protozoan communities in litter shared a dominant group at an order level (Colpodida), they differed at a genus level (i.e., <i>Hausmanniella</i> and <i>Tychosporium</i>). Moreover, although the order Cryomonadida positively correlated to total nitrogen (TN) and sucrose, it exhibited an extreme negative correlation to total carbon (TC) and cellulase. Colpodida and Oomycota_X significantly and negatively correlated to litter urease activity. Nutrient characteristics of grass litter in copper tailing dams are important ecological factors that affect protozoan community characteristics. Notable differences were observed among protozoan communities of these two grass species, while litter enzyme activities were closely correlated to protozoan community diversity. The results suggested that Colpodida may play important roles in litter decomposition and nutrient cycling in mining areas.Tong JiaXiaoxia LiangTingyan GuoBaofeng ChaiMDPI AGarticlecopper tailings damlitterprotozoan communitydiversity<i>Bothriochloa ischaemum</i><i>Imperata cylindrica</i>Biology (General)QH301-705.5ENMicroorganisms, Vol 9, Iss 2250, p 2250 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	copper tailings dam litter protozoan community diversity <i>Bothriochloa ischaemum</i> <i>Imperata cylindrica</i> Biology (General) QH301-705.5
spellingShingle	copper tailings dam litter protozoan community diversity <i>Bothriochloa ischaemum</i> <i>Imperata cylindrica</i> Biology (General) QH301-705.5 Tong Jia Xiaoxia Liang Tingyan Guo Baofeng Chai Impact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China
description	In nature, protists directly participate in litter decomposition and indirectly affect litter decomposition processes by means of their influence on litter microbial communities. To date, relevant studies on litter microbial communities have primarily focused on bacteria and fungi, while relatively little attention has been paid to the characteristics of protozoan communities within damaged ecosystems. Two dominant grass species (<i>Bothriochloa ischaemum</i> and <i>Imperata cylindrica</i>) were selected from China’s “Eighteenth” River tailings dam to explore protozoan community composition and diversity in a degraded mining area and to clarify the influence among key ecological factors and protozoan community characteristics in litter. High-throughput sequencing was used to analyze protozoan community composition and diversity, while correlation analysis was used to explore the relationships between protozoan communities and litter nutrient characteristics, including associative enzyme degradation. Although protozoan communities in litter shared a dominant group at an order level (Colpodida), they differed at a genus level (i.e., <i>Hausmanniella</i> and <i>Tychosporium</i>). Moreover, although the order Cryomonadida positively correlated to total nitrogen (TN) and sucrose, it exhibited an extreme negative correlation to total carbon (TC) and cellulase. Colpodida and Oomycota_X significantly and negatively correlated to litter urease activity. Nutrient characteristics of grass litter in copper tailing dams are important ecological factors that affect protozoan community characteristics. Notable differences were observed among protozoan communities of these two grass species, while litter enzyme activities were closely correlated to protozoan community diversity. The results suggested that Colpodida may play important roles in litter decomposition and nutrient cycling in mining areas.
format	article
author	Tong Jia Xiaoxia Liang Tingyan Guo Baofeng Chai
author_facet	Tong Jia Xiaoxia Liang Tingyan Guo Baofeng Chai
author_sort	Tong Jia
title	Impact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China
title_short	Impact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China
title_full	Impact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China
title_fullStr	Impact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China
title_full_unstemmed	Impact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China
title_sort	impact of nutrients on protozoa community diversity and structure in litter of two natural grass species in a copper tailings dam, china
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d707bed3cbe84fcfbf265efe62402e8d
work_keys_str_mv	AT tongjia impactofnutrientsonprotozoacommunitydiversityandstructureinlitteroftwonaturalgrassspeciesinacoppertailingsdamchina AT xiaoxialiang impactofnutrientsonprotozoacommunitydiversityandstructureinlitteroftwonaturalgrassspeciesinacoppertailingsdamchina AT tingyanguo impactofnutrientsonprotozoacommunitydiversityandstructureinlitteroftwonaturalgrassspeciesinacoppertailingsdamchina AT baofengchai impactofnutrientsonprotozoacommunitydiversityandstructureinlitteroftwonaturalgrassspeciesinacoppertailingsdamchina
_version_	1718411227698298880

Impact of Nutrients on Protozoa Community Diversity and Structure in Litter of Two Natural Grass Species in a Copper Tailings Dam, China

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